CN1397256A - Clip applicator for surgery - Google Patents

Abstract

The present invention provided a surgical clip feeding device which can reduce the number of part items, simplify its constitution, and lower the cost of production. This surgical clip feeding device has a clip feeding mechanism which is set inside a guide pipe 144 and pushes clips one by one in order to a space between a pair of jaw elements of a jaw. The clip feeding mechanism comprises a clip carry 242 which extends within the guide pipe 144 and feeds the clip between the jaw elements, a reset spring 244 which energizes the clip carry 242 in an axial backward direction, an elastic deformable locking part 246 which is fixed on a pushrod rear 202 and has a protruding part 246b that is formed by pushing with the elastic force of the locking part 246 in the direction to lock on the clip carry 242, and a reset member 248 which is fixed inside the guide pipe 144 ahead of the locking part 246 and moves the protruding part 246b of the locking part 246 to a non-locking position with the clip carry 242.

Description

Clip applicator for surgery

Technical field

The present invention relates in surgical intervention to give decomposition texture in the operating grip that systemic clip applicator for surgery and operator thereof operate usefulness clip.

Prior art

For example, in endoscopic surgery, implement little incision at abdominal part, in this opening part inserts ditch entire body and medical instruments such as external elongated pipe or sleeve pipe, by them clip applicator for surgery was inserted, give intravital for example trachea, blood vessel, conduit, other bodily tissues clip by this clip applicator for surgery, stop blooding etc.

As this clip applicator for surgery, for example the spy opens that the person is known described in the flat 10-118083 communique.

, the clip applicator for surgery described in the above-mentioned communique needs a plurality of part numbers, constitutes complexity, and it assembles difficulty, and the result exists the high such problem of manufacturing cost.

In addition, as another problem, this surgery,, no longer utilizes and must be discarded after a patient uses on one's body in the occasion of the former dispensable mould with utensil once two types of type and the reclaiming types that can utilize once more in the prior art.

; the dispensable mould surgery of foregoing prior art with utensil because be not so that discarded metal part and plastic part are the structure of prerequisite respectively; if so tell metal parts with utensil from surgery; exist then that to need extensive work amount and such problem of time, present situation be almost discarded according to whole former state.Therefore, wait waste treatment, exist the problem of its processing cost raising etc. in order to burn according to whole former state.

The content of invention

The present invention makes in view of these problems of prior art, and its 1st purpose is to provide a kind of part number that can make to reduce, and simplifies it and constitutes, and reduces the clip applicator for surgery of manufacturing cost.

In addition, the 2nd purpose of the present invention is to provide the surgical procedures handle decomposition texture that can handle respectively simply after a kind of the use.

In order to realize aforementioned purpose, technical scheme 1 described invention is to have: handle portion, from the handle portion bar portion of distolateral extension forward, be fixed in the aforementioned rod portion, guide the guiding mechanism of a plurality of clips of configuration in upright arrangement in bar portion vertically, be disposed near the leading section of this bar portion, having can be at the jaw that leaves a pair of jaw key element that moves between position and the approximated position, extending through also can be according to the axially movable push rod of the operation of aforementioned handle portion in the bar portion, make the jaw key element of aforementioned jaw move to the jaw latch members of using the approximated position according to moving axially of push rod, and be disposed in the bar portion, aforementioned clip is pushed one by one successively the clip feed mechanism between a pair of jaw key element of aforementioned jaw, and give clip applicator for surgery on the bodily tissue clip, it is characterized in that

Aforementioned clip feed mechanism is by extending through in the bar portion and clip is supplied to clamp stand between aforementioned jaw key element, give the boosting mechanism of clamp stand towards the axial rearward direction reinforcing, be installed on the push rod and have the fastener that suppresses towards the direction that is limited to clamp stand by the elastic force of self can strain card end member, and end member the place ahead at aforementioned card and constitute to putting mobile reset components with the non-card stop bit of clamp stand at bar portion internal fixation and the fastener that makes aforementioned card end member.

If the operator shank advances push rod in bar portion, the card that then is installed on the clip feed mechanism on the push rod ends member and integrally advances.Because ending the fastener of member, card is limited on the clamp stand, so clamp stand also overcomes aforementioned boosting mechanism and advances.And clamp stand is pushing between the jaw key element by the clip that guiding mechanism led.Then, in bar portion, end member and reach the reset components place of being fixed in forwardly in the bar portion with the progressive card of push rod.So, end the deformation of member and make its fastener because reset components allows to the card of strain to putting mobilely with the non-card stop bit of aforementioned clamp stand, so clamp stand is ended member from card and frees, rearward return by boosting mechanism.And then, if continue the operation of handle portion, then because the jaw latch members makes the jaw key element of jaw move to the approximated position according to moving of push rod, so the clip that pushes between the jaw key element by clamp stand squeezes between the jaw key element and is imparted on the bodily tissue.

Constitute by member that can strain because card ends member itself,, can make formation simply, can reduce manufacturing cost with less part so can omit constituent parts such as spring as other part.

Technical scheme 2 described inventive features are, technical scheme 1 described aforementioned card ends member and makes ' ヘ ' font, the fastener that is limited on the aforementioned clamp stand is set on Qi Ding top, hinged hinged portion on aforementioned push rod is set in the portion of a side limit, in the portion of the opposing party's limit flat spring portion is set, aforementioned reset components has and acts on that aforementioned card ends on the member and the aforementioned fastener cam surface that pushes of direction downwards.

All the time be limited on the aforementioned clamp stand though end the formed fastener in top, top of member at card, reset components ends member by card and acts on, and the fastener quilt can make fastener put mobile to the non-card stop bit that leaves clamp stand towards the pushing of below direction whereby.

Technical scheme 3 described inventive features are, technical scheme 1 described aforementioned card ends member and is formed also and can be installed on the aforementioned push rod with rocking from side to side by leaf spring, the fastener be limited on the aforementioned clamp stand is set on Qi Ding top, and aforementioned reset components has and acts on that aforementioned card ends on the member and aforementioned fastener or the cam surface that pushes of right left.

All the time be limited on the aforementioned clamp stand though end the formed fastener in top, top of member at card, reset components backup plate spring and acting on, fastener can be made fastener put mobile to the non-card stop bit that leaves clamp stand by towards a left side or the right pushing whereby.

Technical scheme 4 described inventive features are, have the prevention mechanism that when last clip pushes between the jaw key element by clamp stand, stops clamp stand to retreat in the aforementioned guiding mechanism described in the technical scheme 1 to 3 any one, on the rear end of clamp stand, form the catch portion that stops aforementioned push rod to retreat.

Because if clamp stand pushes last clip between the jaw key element, then retreating of clamp stand is prevented from mechanism and stops, and formed catch portion can stop retreating of push rod on the rear end of clamp stand so lean against.By this action, can inform that the operator has used up the situation of all clips.Because clamp stand directly stops retreating of push rod, constitute simply so can make with less part, can reduce manufacturing cost.

Technical scheme 5 described inventive features are that the aforementioned jaw latch members described in any one in the technical scheme 1 to 4 integrally is connected on the aforementioned push rod.And the jaw latch members also can form one with push rod.

Technical scheme 6 described inventive features are, aforementioned guiding mechanism described in the technical scheme 1 to 5 any one is made of cartridge and the clip lid that covers this cartridge upside, cartridge and clip lid in conjunction with and be divided into the cartridge inner space, configuration gives clip forwards afterburning clip spring in the cartridge inner space, bear spring force by a certain side in cartridge and the clip lid from this clip spring rear end, and this cartridge and clip lid come combination with a certain side in the clip lid to the relative slip in certain other direction rear by making aforementioned cartridge, with a certain side in the clip lid combination are removed in the relative slip in certain other direction the place ahead by making aforementioned cartridge.

When cartridge is combined with the clip lid, with a certain side in the clip lid the relative slip in other direction rear is carried out by making cartridge.In conjunction with after, even the cartridge and a certain side in the clip lid that bear from the rearward spring force of clip spring rearward slide because of this spring force, in conjunction with also not throwing off.So, the combination that can prevent cartridge and clip lid is unexpectedly thrown off because of the spring force of clip spring.

In order to realize aforementioned the 2nd purpose, technical scheme 7 described inventions be push rod forwards, backwards direction be located in the handle casing movably, the surgery operating grip that forwards moves is characterized in that push rod by operating the trigger that can be installed on handle casing movably

Dispose cylindrical shell on the front opening of handle casing, push rod is afterburning towards the rear by the back-moving spring that is clipped between cylindrical shell and the push rod,

Aforementioned cylindrical shell has the base portion that is disposed at handle casing inside, be disposed at the external connecting of handle casing outside, and between base portion and external connecting formed frangible portion, by turning external connecting with respect to base portion, cylindrical shell can be disrumpent feelings at this frangible portion place, and aforementioned back-moving spring can take out from this disrumpent feelings cylindrical shell.

Turn the external connecting of cylindrical shell after using with respect to base portion, make cylindrical shell disrumpent feelings, can from handle casing, take out common metal back-moving spring simply whereby, can handle back-moving spring and other parts respectively.

Technical scheme 8 described inventive features are that technical scheme 7 described aforementioned base portions can dispose rotatably with respect to handle casing, on the handle casing of aforementioned base portion, form can strain flexure strip, this flexure strip can be sticked on the aforementioned base portion.Formed flexure strip on handle casing is pushed to handle casing inside, engage, stop of the rotation of the base portion of cylindrical shell whereby handle casing with base portion.So, by making the external connecting rotation, just can turn external connecting with respect to base portion.

Technical scheme 9 described inventive features are, the front face side of technical scheme 7 or 8 described aforementioned base portions forms a plurality of a plurality of adnexa patchholes that can be communicated with formed a plurality of narrow slits on the peripheral part of the aforementioned front opening of aforementioned handle casing, and formed projection can be inserted this narrow slit and adnexa inserts in the hole on adnexa.The narrow slit of the projection of adnexa insertion handle casing and the adnexa of base portion are inserted in the hole, adnexa is engaged with base portion, stop the relative handle casing rotation of base portion of cylindrical shell whereby.So, by making the external connecting rotation, just can turn external connecting with respect to base portion.

Technical scheme 10 described inventive features are, its moving direction of push rod upper edge described in the technical scheme 7 to 9 any one forms ratchet, in handle casing, dispose pawl component, the head central part of this pawl component is hinged on handle casing, the head front end of this pawl component is made herringbone, on its two inclined-plane, form ratchet respectively with the ratchet engagement of push rod, on pawl component and then form from its head to the plate spring part of extending facing to preceding extreme direction, the flat spring portion that forms the restriction pawl component in this handle casing is the restriction portion of the slewing area at center with aforementioned hinged.

If along with moving of this one push bar, the ratchet of push rod moves, then the head of pawl component is the center rotation with hinged point, and its head front end tilts to the moving direction of push rod, and a side on two inclined-planes of head front end goes up formed ratchet engagement on the ratchet of push rod.At this moment, because the slewing area of plate spring part is limited by restriction portion, so the bending of flat spring portion, the ratchet of head front end is by the direction reinforcing of plate spring part to the ratchet that is engaged in push rod.Under this state, because can not keeping out of the way, the head of pawl component allow the direction in moving rightabout mobile, so this push rod mobile being under an embargo round about with push rod.So, the ratchet by pawl component fully up to its ratchet, push rod only the direction in move move.

Then, if push rod moves along the direction opposite with aforementioned moving direction, then the head of pawl component along with previous opposite direction rotation, its head front end tilts to the moving direction of push rod, formed ratchet engagement is on the ratchet of push rod on the opposing party on two inclined-planes of head front end.Whereby, by the effect same, because can not keeping out of the way, the head of pawl component allow the direction in moving rightabout mobile, so this push rod mobile being under an embargo round about with push rod with the front.So, the ratchet by pawl component fully up to its ratchet, push rod only the direction in move move.Because aforementioned pawl component has plate spring part,, only depend on pawl component just can limit the moving direction of push rod so do not need spring.Because this pawl component does not need spring, so can under the state in being contained in aforementioned handle casing, dispose after using.

In addition, technical scheme 11 described inventions are to have: handle portion, from the handle portion bar portion of distolateral extension forward, be fixed in the aforementioned rod portion, be directed at the guiding mechanism of a plurality of clips of configuration in upright arrangement in the bar portion vertically, be disposed near the leading section of this bar portion, having can be at the jaw that leaves a pair of jaw key element that moves between position and the approximated position, extending through also can be according to the axially movable push rod of the operation of aforementioned handle portion in the bar portion, make the jaw key element of aforementioned jaw move to the jaw latch members of using the approximated position according to moving axially of push rod, and be disposed in the bar portion, aforementioned clip is pushed one by one successively the clip feed mechanism between a pair of jaw key element of aforementioned jaw, and give clip applicator for surgery on the bodily tissue clip, it is characterized in that

Aforementioned handle portion can be separated with aforementioned rod portion.

Can the handle shank after the use and the bar part from, pay later processing.

If with the present invention of above explanation, then not only part number minimizing, and formation becomes simple, and assembling also can easily be carried out.In addition, handle portion after the use makes cylindrical shell disrumpent feelings by the external connecting that turns cylindrical shell with respect to base portion, usually can from handle housing, take out metal back-moving spring simply, can handle back-moving spring and other parts respectively, can reduce the cost that waste treatment is used.In addition, the utilization again of part becomes possibility, can make the goods of considering to some extent on the environment in the occasion of utilizing again.

Brief description of drawings

Fig. 1 is the overall perspective view of clip applicator of the present invention.

Fig. 2 is that the figure that inside that the handle left side shell of handle portion watches constitutes is taken off in expression.

Fig. 3 is the side view of the push rod of handle portion.

Fig. 4 is the side view of the pawl component of handle portion.

Fig. 5 is (a) perspective view that revolves reducing sleeve of handle portion, (b) half longitudinal section, (c) side view of disrumpent feelings state.

Fig. 6 (a) is that the figure that the inside midway of the cocking that the handle left side shell of handle portion watches constitutes is taken off in expression, (b) is the enlarged drawing of the ratchet of the ratchet of push rod and pawl component.

Fig. 7 is that the figure that the inside of the state of the complete cocking that the handle left side shell of handle portion watches constitutes is taken off in expression.

Fig. 8 (a) is that expression is taken off the inside that trigger is resetted midway that the handle left side shell of handle portion watches and constituted, and (b) is the enlarged drawing of the ratchet of the ratchet of push rod and pawl component.

Fig. 9 is the longitudinal section that revolves reducing sleeve and bar portion.

Figure 10 is the decomposition diagram of guiding mechanism.

Figure 11 is the sectional elevation of guiding mechanism.

Figure 12 is before expression (a) makes the clip lid and cartridge combines, and (b) makes the perspective view of clip lid and the bonded state of cartridge.

Figure 13 is the perspective view of guiding mechanism, jaw and clamp stand.

Figure 14 is jaw (a) vertical view, (b) side view, (c) upward view.

Figure 15 is the decomposition diagram of push rod.

Figure 16 is rear push-rod (a) vertical view, (b) longitudinal section.

Figure 17 is the perspective view of jaw latch members.

Figure 18 is jaw latch members (a) vertical view, (b) longitudinal section.

Figure 19 is the figure of the relation of expression jaw and jaw latch members, (a) cam surface of expression jaw latch members is positioned at the state at cam surface rear of the jaw key element of jaw, (b) cam surface of expression jaw latch members and the relevant state of cam surface of the jaw key element of jaw.

Figure 20 is the partial, longitudinal cross-sectional of clip feed mechanism.

Figure 21 is that longitudinal section is amplified in the part of clip feed mechanism.

Figure 22 is near the perspective view expression clamp stand, guiding mechanism and the jaw front end.

Figure 23 is near the perspective view the expression clamp stand rear end.

Figure 24 is (a) vertical view, (b) side view that card ends member.

Figure 25 is near the perspective view expression clamp stand, guiding mechanism and the jaw front end, the progressive state of expression clamp stand.

Figure 26 is that longitudinal section is amplified in the part of clip feed mechanism, and the expression card ends component interference in the state of the cam surface of reposition lever.

Figure 27 is near the perspective view the expression clamp stand rear end, and the expression card ends component interference in the state of the cam surface of reposition lever.

Figure 28 is the fragmentary, perspective view of the variation of expression clip feed mechanism.

Figure 29 is near the perspective view in clamp stand rear end of the variation of expression clip feed mechanism, and the expression card ends component interference in the state of the cam surface of reposition lever.

Figure 30 is the figure when decomposing handle portion.

Figure 31 is the perspective view of assembly fixture.

Figure 32 is the perspective view with the occasion of assembly fixture.

The specific embodiment

With accompanying drawing embodiments of the invention are described below.Moreover following embodiment does not limit the present invention.

Fig. 1 is the overall perspective view according to clip applicator for surgery of the present invention.This clip applicator for surgery 10 is as totally having: handle portion 12, from the handle portion 12 bar portion 14 of distolateral extension forward, be configured in the guiding mechanism 16 in the bar portion 14, be configured near the jaw 18 of leading section of bar portion 14, extend through bar portion 14, the interior axially movable push rod 20 of operation energy according to aforementioned handle portion 12, make the jaw key element of aforementioned jaw 18 move on to the jaw latch members of using the approximated position 22 according to moving axially of push rod 20, and be configured in the bar portion 14, clip is placed one by one successively the clip feed mechanism 24 between a pair of jaw key element of aforementioned jaw 18.Carry out the detailed description of each one below.

(1) handle portion 12

As shown in fig. 1, handle portion 12 has right shell 121 of handle and handle left side shell 122, constitutes handle casing 124 by right shell 121 of these handles and handle left side shell 122, and portion is divided into the enclosure interior space within it.On handle casing 124, form the grip part 124a that is suitable for operator's gripping.As shown in Figure 2, hinged trigger 123 in the enclosure interior space, the outstanding spatial pin 124b of enclosure interior that is arranged at handle casing 124 connects the pin through hole 123a of trigger 123.The bottom of trigger 123 is outstanding from handle casing 124, can be approaching, away from 124a ground, grip part swing movement.The operator who grips grip part 124a places clip C on the jaw 18 as described later by pulling operating trigger 123, can clamp clip C, gives systemic a series of actions of wanting the position.

As shown in Figure 2, the upper end of trigger 123 be engaged in be disposed at aforementioned rod portion 14 same straight lines on push rod 126 on formed projection 126a.Push rod 126 can along moving axially of bar portion 14 be disposed in the enclosure interior space, the swing movement of trigger 123 is transformed into axial the moving of bar portion 14 of push rod 126.As shown in Figure 3, the rearward end at push rod 126 forms the part that bloats downwards, formation ratchet 126b below this convex camber.Each tooth of this ratchet 126b is made the shape of right angled isosceles triangle.The front side and the rear side of ratchet 126 formed convex cambers become and keep out of the way 126c of portion and 126d.The leading section of push rod 126 has axial region 126e to stretch out, form at its front end rear push-rod 202 rear ends that can accommodate push rod 20 described later rotatably by the resettlement section 126f of resettlement section 202a.Resettlement section 126f is the notched shape of part side face of tubular.

And then, hinged pawl component 128 in the enclosure interior space, the outstanding pin 124c that is provided with connects the pin through hole 128a of pawl component 128 in the enclosure interior space of handle housing 124.Pawl component 128 as shown in Figure 4, its front end head forms herringbone, forms ratchet 128b, 128c respectively on these lambdoid two inclined-planes.These ratchets 128b, 128c make the shape of the right angled isosceles triangle that can mesh with the ratchet 126b of aforementioned push rod 126.Has the flexible plate-shaped flat spring 128d of portion from the head of pawl component 128 to forming facing to preceding extreme direction.The 128d of flat spring portion of pawl component 128 is by in formed door (restriction portion) 124d in the enclosure interior space of handle casing 124, and pawl component 128 can be to rotate in the scope of center in the 128d of flat spring portion is in this 124d with aforementioned pin 124c.Door 124d forms pawl component 128 left and right symmetricallies, so that when pawl component 128 is in push rod 126 vertical neutral positions, the 128d of flat spring portion is by centre position (so Fig. 2 because of be that figure from tilted direction is slightly watched sees asymmetric).

Can be provided with rotatably at the front opening place of handle casing 124 and to revolve reducing sleeve (cylindrical shell) 130.Revolve reducing sleeve 130 as shown in Figure 5, comprise and be disposed at the spatial base portion 130a of enclosure interior, be positioned at the base portion 130a front of revolving reducing sleeve 130, be disposed at threaded portion (external connecting) 130c of the outside of handle casing 124, and between base portion 130a and threaded portion 130c formed frangible portion 130e.Constitute though frangible portion 130e can make arbitrarily, present embodiment be that a plurality of opening 130g along the circumferential direction are set, constitute frailly than other parts.

In addition, on base portion 130a, form a plurality of rib 130b that extend along the external diameter direction, can mesh between these ribs 130b by punching press formed flexure strip 121a, 122a (122a only is shown among Fig. 1) on the housing face of right shell 121 of aforementioned handle and handle left side shell 122 respectively.

And then in the front face side of base portion 130a, along the circumferential direction the compartment of terrain forms a plurality of adnexa patchhole 130f.In the present embodiment, adnexa patchhole 130f crosses over the total length of base portion 130a and forms.

On the periphery of the axial region 126e of aforementioned push rod 126, the back-moving spring 132 of reeling, the front end of back-moving spring 132 are contacted with the formed end difference 130d in inside (Fig. 5 (b)) that connects cover 130 in aforementioned rotation.In addition, the rear end of back-moving spring 132 is contacted with the end difference 126g of push rod 126, and push rod 126 is by the back-moving spring 132 direction reinforcing that moves backward all the time.In addition, if the front end of the resettlement section 126f of aforementioned push rod 126 and axial region 126e makes push rod 126 overcome the loading force of back-moving spring 132 and advances, then inserted and aforementionedly revolved reducing sleeve 130 and from the outstanding possibilities that become of handle portion 12.

It is metal that the part that constitutes above handle portion 12 only has back-moving spring 132, remaining parts, and the right shell 121 of handle, a handle left side shell 122, trigger 123, push rod 126, pawl component 128, to revolve reducing sleeve 130 all be plastic.Preferably,, then utilize the occasion of processing again carrying out as described later if these plastic parts all form with identical plastics, more favourable.

The effect of the handle portion 12 that at first only illustrates as above to be constituted.If the operator grips aforementioned grip part 124a, cocking 123 makes it near grip part 124a, then because the upper end of trigger 123 is matched with the projection 126a of push rod 126, so push rod 126 advances, just moves to 14 1 sides of bar portion.Whereby, the front end head of pawl component 128 is contacted with the ratchet 126b of push rod 126, and as shown in Figure 6, its front end head quilt is to the front side, and bar portion 14 1 side pressures are just fallen.And, ratchet 128b and push rod 126 ratchet 126b engagement.Simultaneously, the post that is arranged in Fig. 6 right-hand member of the 128d of flat spring portion contact door 124d is among Fig. 6, crooked to the right protrudingly.By the spring force of this flat spring 128d of portion, the front end head of pawl component 128 is pushed down to the ratchet 126b of push rod 126 side, particularly pushes down to the upper right side of Fig. 6.If continue advancing of push rod 126, then the front end head of pawl component 128 shook between the upper right side and lower left of Fig. 6, and its ratchet 128b suitably keeps out of the way one side from ratchet 126b on one side ratchet 126b is relatively moved.If stop the swing movement of trigger 123, the forward travel of push rod 126 stops, and then the front end head of pawl component 128 is gone up direction ratchet 126b one side pushing to the right, guarantees the engagement between ratchet 128b and the ratchet 126b, and the stopping of push rod 126 is held.At this moment, though the power that push rod 126 is retreated in the loading force effect by back-moving spring 132 on push rod 126, because ratchet 128b and ratchet 126b engagement, ratchet 128b can't keep out of the way to the direction that allows push rod 126 to retreat, so retreating of push rod 126 is under an embargo.

If further cocking 123, push rod 126 is advanced further, and then as shown in Figure 7, the engagement of the ratchet 128b of pawl component 128 and the ratchet 126b of push rod 126 is thrown off, and the front end head of pawl component 128 enters keeps out of the way portion 126d place.So, push rod 126 has just been freed from pawl component 128.

If remove the power to trigger 123, then push rod 126 retreats by the loading force of back-moving spring 132.At this moment, the front end head of pawl component 128 is contacted with the ratchet 126b of push rod 126, and as shown in Figure 8, its front end head is by to rear side, just falls with bar portion 14 opposite side pressures.And, the ratchet 126b engagement of ratchet 128c and push rod 126.The post that is arranged in Fig. 8 left end of the door of the flat spring 128d of portion contact simultaneously 124d is among Fig. 8, crooked left protrudingly.By the spring force of this flat spring 128d of portion, the front end head of pawl component 128 is pushed down to the ratchet 126b of push rod 126 side, particularly pushes down to the upper left side of Fig. 8.If continue retreating of push rod 126, then the front end head of pawl component 128 shook between the upper left side and lower right of Fig. 8, and its ratchet 128c suitably keeps out of the way one side from ratchet 126b on one side ratchet 126b is relatively moved.If cocking 123 once more under the such state midway of Fig. 8 advances push rod 126, then ratchet 128c and ratchet 126b engagement is because ratchet 128c can't be to allowing push rod 126 progressive directions keep out of the way, so advancing of push rod 126 is under an embargo.

And, if push rod 126 further retreats, then turning back to the state of Fig. 2, the engagement of the ratchet 128c of pawl component 128 and the ratchet 126b of push rod 126 is thrown off, and the front end head of pawl component 128 enters keeps out of the way portion 126c place.So, push rod 126 has just been freed from pawl component 128.

Effect by above push rod 126 and pawl component 128, carry out pulling action fully and removing the circulation action that action is formed fully reliably by trigger 123, stop the action of giving up halfway, giving with the preparation of next clip C of clip C carried out reliably as described later.

In this proficiency shank 12,,, can reduce the part number so can omit other spring member because pawl component 128 itself has the 128d of flat spring portion.

(2) bar portion 14

Secondly, bar portion 14 is made of knob 142 and conduit 144 as shown in fig. 1.

As shown in Figure 9, knob 142 forms the threaded portion 142b on the threaded portion 130c that revolves reducing sleeve 130 that is screwed in aforementioned handle portion 12 within it on the side face.In addition, be clipped in the front end face that revolves reducing sleeve 130 and on the inner peripheral surface of knob 142 between the formed end difference 142a at the formed flange portion 144a in the rear end of conduit 144.Whereby, knob 142, conduit 144 and revolve reducing sleeve 130 combination integrally.Thereby the operator is by rotary knob 142, conduit 144 and revolve reducing sleeve 130 and integrally rotate, and the part that is disposed at the following explanation in the conduit 144 also integrally rotates.Thus, in the occasion that the operator plans to make the direction rotation of giving clip C, just can suitably adjust by rotary knob 142.

(3) guiding mechanism 16

Secondly, guiding mechanism 16 is in the place ahead part of the conduit 144 of bar portion 14, and occupies its almost the first half in the circular cross sections of conduit 144, is made of cartridge 162 and clip lid 164.

As shown in Figure 10 and Figure 11, a plurality of clip C bottom surface 162a that places in upright arrangement is arranged cartridge 162 and at the formed sidepiece 162b in the both sides of this bottom surface 162a, the upper end of sidepiece 162a bends to almost parallel with bottom surface 162a, and sidepiece 162b surrounds the sidepiece of clip C.Clip lid 164 covers the upside of cartridge 162, is divided into the cartridge inner space with cartridge 162.

In this cartridge inner space, accommodating a plurality of clip C, be positioned at aftermost clip C rear and push the clip spring 168 that the clip of clip C is released rod 166 and released rod 166 direction reinforcings forwards to clip.Clip C makes roughly U font, and its base end part is arranged on the bottom surface 162a of cartridge 162 towards the rear.

In addition, form a plurality of roughly 162c of hooking sheet portion of the font of falling L that are taken as on axially spaced-apart ground, 162b upper edge, the side of cartridge 162.This one roughly the 162c of hooking sheet portion of the font of falling L by the vertical component effect 162c1 that extends upward with from vertical component effect 162c1 right-angle bending and the parallel portion 162c2 that rearward extends vertically constitutes.

On the lateral margin end of clip lid 164, the corresponding aforementioned hooking sheet 162c of portion, the compartment of terrain forms a plurality of notch part 164a and forms a plurality of supporting surface 164bs lower than other parts in abutting connection with this notch part 164a vertically.

For engaging cartridge 162 with clip lid 164, as shown in Figure 12, make the position of the 162c of hooking sheet portion of cartridge 162 accord with the position of the notch part 164a of clip lid 164, the 162c of hooking sheet portion is inserted notch part 164a (Figure 12 (a)).Then, clip lid 164 is forwards slided (direction of arrow of Figure 12 (a)) with respect to cartridge 162, the parallel portion 162c2 of the 162c of hooking sheet portion of cartridge 162 enters on the supporting surface 164b of clip lid 164.Whereby, the 162c of hooking sheet portion is supported in supporting surface 164b, and cartridge 162 is integrated with clip lid 164.

Because the rear end of clip spring 168 is contacted with the reposition lever 248 that is connected in cartridge 162 rear ends described later,, act on the cartridge 162 so the spring force of clip spring 168 becomes the power that 162 pairs of clip lids 164 of cartridge are relatively rearward released.Even cartridge 162 is subjected to this power, because as long as cartridge 162 does not relatively advance to clip lid 164, cartridge 162 is not thrown off with just combining of clip lid 164, so cartridge 162 can unexpectedly not thrown off with combining of clip lid 164 yet.

Get back to Figure 10, the front end that forms the clamp stand 242 of clip feed mechanism 24 described later at the leading section of clip lid 164 enters the slotted hole 164c of usefulness.In addition, on cartridge 162, on the corresponding part of slotted hole 164c of a clip lid 164 therewith, form the basic courses department of the clip C that pins the front, the claw 162e that clip C can not unexpectedly be flown out.

And then, form the flexure strip 162f that stamps out by bottom surface 162a on the position after a while at the claw 162e of cartridge 162.Flexure strip 162f can release that formed recess engages on the bottom surface of rod 166 with aforementioned clip.Release rod 166 by this flexure strip 162f and clip, as described later, when jaw 18 is released last clip C, as the prevention mechanism performance function that retreats of the clamp stand 242 that stops clip feed mechanism 24 described later.

And then, form the mating holes 162d that cooperates usefulness with the back-moving spring 248 of clip feed mechanism 24 described later in the rear end of cartridge 162.

(4) jaw 18

Secondly, jaw 18 integrally is incorporated into the lower surface of aforementioned cartridge 162 by laser weld etc.As shown in Figure 13 and Figure 14, the fore-end of jaw 18 is slit into two strands, becomes a pair of jaw key element 18a, the 18a that clamp clip C respectively.These jaw key elements 18a, 18a utilize its elasticity can move past between disconnected position and the mutually approaching approximated position.On the upper face side of jaw key element 18a, 18a, form and accept the guiding inclined plane 18b that clip C uses.On the other hand, below jaw key element 18a, 18a, form cam surface 18c, 18c (Figure 14 (c)) on the side respectively.Cam surface 18c, 18c are the mutual more forward big more inclined plane of distance.This cam surface 18c, 18c are relevant with the cam surface 22c of jaw latch members 22 described later.

Form a plurality of protruding 18d, 18d on the rear side of jaw 18, these protruding 18d, 18d are embedded in formed opening 144b (with reference to Fig. 1 and Fig. 9) on the conduit 144 of bar portion 14.So, jaw 18 and aforementioned guiding mechanism 16 are fixed in the conduit 144 of bar portion 14.

On the central lower surface of jaw 18, form locator protrusions 18e, 18e, embed in the gathering sill 22b of jaw latch members 22 described later.

(5) push rod 20

Secondly, push rod 20 is disposed at its almost Lower Half in the circular cross sections of the conduit 144 of bar portion 14, as shown in Figure 15, be made of rear push-rod 202 and preceding push rod 204.These rear push-rods 202 and preceding push rod 204 can be formed by one-piece parts, reduce the part number whereby, perhaps also can pay the utmost attention to formability as present embodiment and make separately part.

Form the cylindrical of the resettlement section 126f that can be embedded in aforementioned push rod 126 rotatably by resettlement section 202a in the rear end of rear push-rod 202.In addition, form the slotted hole 202b that extends vertically at the leading section of rear push-rod 202, hinged card described later ends member 246 in this slotted hole 202b.Therefore, block the axial region 246a that ends member 246 and embed the side formation (with reference to Figure 16 (b)) of the spindle socket 202d of usefulness at slotted hole 202b.In addition, on the side of slotted hole 202b, form and hold the recess 202g that the 2nd axial region 246c that aforementioned card ends member 246 uses.

In addition, it is cross that the axial region 202e that extends through the rear portion of rear push-rod 202 vertically makes section, forms the end difference 202f of the front end of regulation axial region 202e between axial region 202e and slotted hole 202b.

Leading section at rear push-rod 202 forms the cancavo-convex hook portion 202c that is connected usefulness with preceding push rod 204, and on the other hand, the rearward end of pro-push rod 204 forms the chimeric cancavo-convex hook portion 204a of hook portion 202c with rear push-rod 202.In addition, the front end of pro-push rod 204 forms the hook portion 204b that is sticked in next jaw latch members 22.

(6) the jaw latch members 22

Jaw latch members 22 is connected on the aforementioned push rod 20, is disposed at the downside of aforementioned jaw 18.Though it also is possible that jaw latch members 22 integrally forms with aforementioned push rod 20, the part that separates with push rod 20 is made in jaw key element 18a, the 18a locking reliably in order to make jaw 18 with metal sheet material in the present embodiment.

As shown in Figure 17 and Figure 18, at the central part formation connecting hole 22a of jaw latch members 22, the formed hook portion 204b of the front end of push rod 204 is sticked among this connecting hole 22a before aforementioned.In addition, at two gathering sill 22b of upper surface formation of this central part, the locator protrusions 18e of aforementioned jaw 18 inserts in this gathering sill 22b.The locator protrusions 18e of aforementioned jaw 18 slides relatively along this gathering sill 22b, and 22 pairs of jaw 18 straight lines of jaw latch members move whereby.And, the leading section of jaw latch members 22 form for make aforementioned jaw key element 18a, 18a to the locking direction move and with the cam surface 22c of the cam surface 18c sliding-contact of jaw key element 18a.

Figure 19 is the figure of the relation of expression jaw 18 and jaw latch members 22.The cam surface 22c that Figure 19 (a) illustrates jaw latch members 22 is in the state at cam surface 18c rear of the jaw key element 18a of jaw 18, Figure 19 (b) illustrates jaw latch members 22 advancing with push rod 20 (preceding push rod 204), the cam surface 22c of jaw latch members 22 is relevant with the cam surface 18c of jaw key element 18a, the state that jaw key element 18a, 18a are moved to the approximated position.

(7) the clip feed mechanism 24

Clip feed mechanism 24 is as shown in Figure 20 and Figure 21, mainly by along the axially extended clamp stand 242 of bar portion 14, go up among the formed spindle socket 202d for the spring shaft 245 of clamp stand 242 around back-moving spring 244 (boosting mechanism), the back-moving spring 244 of axial rearward direction reinforcing is wound on it, the slotted hole 202b that its axial region 246a is embedded in rear push-rod 202, can be that the card that the center is shaken ends member 246 with this axial region 246a, and the reposition lever 248 that is sticked at the formed connecting hole 162d in the rear end of aforementioned cartridge 162 constitute.

Clamp stand 242 is located in the circular cross sections of conduit 144 of bar portion 14 and occupies its almost more upside of the guiding mechanism 16 of the first half, along extend axially (with reference to Figure 13) of bar portion 14.And, as shown in Figure 2, its front end forms the 242a of prerotation vane portion that the clip C of the front of the cartridge inner space that is positioned at guiding mechanism 16 is released usefulness to jaw 18 to entering in the formed slotted hole 164c on the clip lid 164 at aforementioned guiding mechanism 16 in the both sides of its front end.In addition, as shown in Figure 20, form the 242b of the portion of having cut in the central rear of clamp stand 242 to vertical lower stamps out, cut the 242b of portion by the formed opening 248a that extends vertically on aforementioned reposition lever 248, by being limited on the rear end of spring shaft 245 at formed narrow slit on the rear end of spring shaft 245.In addition, form card at the rear portion of clamp stand 242 and end the only stop hole 242c of usefulness of member 246 cards.And then, on the both ends of clamp stand 242 rear ends, form slip over aforementioned rear push-rod 202 aforementioned and make the 242d of catch portion (with reference to Figure 23) that the transverse section is criss-cross axial region 202c.

Spring shaft 245 as previously mentioned, the 242b of the portion of having cut of clamp stand 242 is limited to its rear end, and its front end is inserted in the inside of the formed tube 248b of portion of leading section of reposition lever 248.And, be wound between the 242b of the portion of having cut of the 248b of tube portion that back-moving spring 244 around the spring shaft 245 is inserted in aforementioned reposition lever 248 and clamp stand 242, the edge all the time isolating direction to both reinforcings.The 242b of the portion of having cut of clamp stand 242 is compression reseting spring 244 on one side, Yi Bian advance to vertically in the opening 248a of reposition lever 248.

In addition, the 248b of tube portion of reposition lever 248 inserts aforementioned rearward end by cartridge 162 and clip lid 164 formed cartridge inner spaces, and the front end of the 248b of this is accommodated aforementioned clip spring 168.And then, near the 248b of tube portion, form the engaging protrusion 248c among the connecting hole 162d that is sticked in cartridge 162.Thereby reposition lever 248 is fixed on the guiding mechanism 16.

Secondly, card ends member 246 to be made by plastics etc., as shown in Figure 24, sees from the side to be ' ヘ ' font, as previously mentioned, is embedded in formed spindle socket 202d on the slotted hole 202b of rear push-rod 202 at the laterally projecting axial region 246a in the place, end of limit, one side portion.End on the member 246 at card, form extension (fastener) 246b that above it, stretches out from rear push-rod 202 on Qi Ding top, in the opposing party's limit portion, below extension 246b, form the bottom 246e of plate spring part 246d that extends to the 2nd outstanding axial region 246c of side, from the 2nd axial region 246c and the lower end that is positioned at plate spring part 246d downwards.Bottom 246e is contacted with the inner peripheral surface of conduit 144.Card ends member 246 itself locating the backup plate spring 246d of portion and having elasticity, as shown in Figure 21 or Figure 23, and the direction that extension 246b is stretched out all the time upward, just afterburning to aforementioned clamp stand 242 1 sides.And the extension 246b that ends member 246 at aforementioned card just often is oriented to enter among the aforementioned stop hole 242c of clamp stand 242.

In addition, form low more cam surface 248d more forward in the rear end of reposition lever 248.It is relevant that this cam surface 248d and aforementioned card end member 246, and the extension 246b that card is ended member 246 draws in downwards, the effect that performance retreats clamp stand 242.

(8) overall function

Below, total body action of clip applicator 10 is described.At first, jaw key element 18a, the 18a of jaw 18 air exercise arithmetic talent is given the systemic spots localization of clip.Then, pull the operation of the trigger 123 of handle portion 12.As in 12 of (1) handle portion explanation like that one operate the loading force that aforementioned push rod 126 overcomes back-moving spring 132 and advance by this.Whereby, be connected in the push rod 20 on the push rod 126, just rear push-rod 202 and preceding push rod 204 advance in bar portion 14 together.

Along with advancing of rear push-rod 202, the hinged card on rear push-rod 202 of its axial region 246a ends member 246 and advances.Card ends (with reference to Figure 21) because card ends among the stop hole 242c that the extension 246b of member 246 enters clamp stand 242, so clamp stand 242 also advances together.If clamp stand 242 advances, then as shown in Figure 25, the front end of clamp stand 242 that enters the cartridge inner space of guiding mechanism 16 advances in the cartridge inner space.Whereby, the 242a of prerotation vane portion of clamp stand 242 front ends releases the clip C of the front of cartridge inner space, leads between jaw key element 18a, the 18a of jaw 18 forwards.

And then, if continue the operation of cocking 123, then being connected in push rod 20 on the push rod 126 and card ends member 246 and is advanced further, card ends the 2nd axial region 246c of member 246 as shown in Figure 26 and Figure 27, interferes with the cam surface 248d that is positioned at reposition lever 248 rear end on the rear end that is connected aforementioned guiding mechanism 16.Push away card downwards by this cam surface 248d and end member 246, the card only extension 246b of member 246 withdraws from from the stop hole 242c of clamp stand 242.Whereby, clamp stand 242 retreats so lean on the loading force of back-moving spring 244 because ending member 246 from card frees.

And then, if continue the operation of cocking 123, the cam surface 22c of jaw latch members 22 that then is connected in push rod 20 is relevant with the cam surface 18c of jaw key element 18a, the 18a of jaw 18, makes jaw key element 18a, 18a move (with reference to Figure 19 (b)) to approaching approximated position mutually.Whereby, jaw key element 18a, 18a clamp the clip C that had before been led by clamp stand 242, and clip C gives the end of job.

Then, if weaken the power that trigger 123 is applied, then aforementioned push rod 126 retreats by the loading force of back-moving spring 132, thus, be connected in rear push-rod 202, the preceding push rod 204 on the push rod 126 so be connected in before jaw latch members 22 on the push rod 204 retreat.In addition, hinged card on rear push-rod 202 ends member 246 and also retreats, and the extension 246b that card ends member 246 is limited among the stop hole 242c of the clamp stand 242 that has before retreated once more.

In addition, in the cartridge inner space, the clip C that the next one becomes the front releases to the front end of cartridge inner space by clip spring 168.Moreover the clip C of this front is held at the formed claw 162e of the leading section of cartridge 162.In addition, the 242a of prerotation vane portion of clamp stand 242 is located in the rear of the clip C base end part of front, is waiting for the release of the clip C of this front.

If clamp stand 242 is released the last clip C in the cartridge inner space between jaw key element 18a, the 18a, the clip release rod 166 that then pushes clip C is sticked on the formed flexure strip 162f of aforementioned front end at the bottom surface of cartridge 162 162a, clip release rod 166 can not advance and can not retreat, and stops on this position.Whereby, because releasing rod 166, clip occupies cartridge inner space leading section, be clipped between the leading section of clip release rod 166 and clip lid 164 so last clip C is released the head of the clamp stand 242 between jaw key element 18a, the 18a, can not rearward return.And, if after giving bodily tissue last clip C, weaken the power of trigger 123, then as previously mentioned, though rear push-rod 202 is desired to retreat, but because aforementioned clamp stand 242 can not rearward return, the end difference 202f of rear push-rod 202 is contacted with the block sheet 242d of portion of aforementioned clamp stand 242, and rear push-rod just can not continue to retreat.Whereby, trigger 123 maintains the state of pulling, can not operating trigger 123.

According to clip applicator of the present invention, all seek the minimizing of part throughout, the part of its tool feature is that the card of clip feed mechanism 24 ends member 246.The card that has plate spring part 246d by use ends member 246, uses spring unlike the prior art product more, can constitute with few part.

In addition, in the present invention, because seek the minimizing of part formation is simplified, so its assembling particularly has superiority to each part of guiding mechanism 16, jaw 18, push rod 20, jaw latch members 22 and clip feed mechanism 24 aspect being contained in the very thin bar portion 14.Describe with regard to its installation step below.

(9) installation step

At first, before in the conduit 144 in the part insertion rod portion 14, in advance a plurality of clip C, clip release rod 166, clip spring 168 are placed on cartridge 162 inside that jaw 18 is welded, step by the such Figure 12 that has illustrated combines cartridge 162 and clip lid 164, assembling guiding mechanism 16.And then, the 242b of the portion of having cut of clamp stand 242 is inserted in the narrow slit of spring shaft 245 rear ends via the opening 248a of reposition lever 248, back-moving spring 244 is disposed at the periphery of spring shaft 245, the front end of spring shaft 245 is inserted in the 248b of tube portion of reposition lever 248, these clamp stands 242, back-moving spring 244, spring shaft 245, reposition lever 248 are integrally assembled up.And, the further rear end that the 248b of tube portion of reposition lever 248 is inserted aforementioned guiding mechanism 16.

In addition, among the spindle socket 202d of the slotted hole 202b that blocks the axial region 246a insertion rear push-rod 202 that ends member 246.

Then, rear push-rod 202 is inserted the conduit 144 from its rear end.When rear push-rod 202 being inserted in the conduits 144 to a certain degree, make the rear end of the clamp stand 242 that integrally assembles with clamp stand 242, aforementioned guiding mechanism 16 etc. cover the front end of rear push-rod 202 from the top.At this moment, notice that the extension 246b that makes card end member 246 is limited among the stop hole 242c of clamp stand 242.And, rear push-rod 202 in clamp stand 242 inserts conduit 144, when rear push-rod 202 will soon insert in the conduit 144 fully, is combined rear push-rod 202 and preceding push rod 204, preceding push rod 204 also inserts together.In addition, assembled in advance all-in-one-piece spring shaft 245, back-moving spring 244, reposition lever 248, guiding mechanism 16 and jaw 18 are also in clamp stand 242 inserts conduit 144.And pro-push rod 204 will be when soon inserting in the conduit 144 fully, before aforementioned jaw latch members 22 is connected on the push rod 204, in the insertion conduit 144.And the opening 144b that the projection 18d of jaw 18,18d is pushed conduit 144 is also fixing.Being given prominence to from the rear end of conduit 144 of the initial rear push-rod 202 that inserts by resettlement section 202a.

As above, the insertion in the conduit 144 is finished simply.Then, pull the trigger 123 of the handle portion 12 of assembled in advance, push rod 126 is advanced, make its resettlement section 126f outstanding from the front opening of handle portion 12.And as a resettlement section 126f who is connected in push rod 126 by resettlement section 202a from the outstanding rear push-rod 202 in the rear end of aforementioned conduit 144, when removing trigger 123, then the rear end of rear push-rod 202 is drawn into handle portion 12 with push rod 126.At last the front end of knob 142 from conduit 144 passed through, be screwed in the revolving on the reducing sleeve 130 of aforementioned handle portion 12, with revolving reducing sleeve 130 and knob 142 is clamped the flange portion 144a of conduit 144 rear ends, handle portion 12 couples together fully with bar portion 14 whereby.By above operation, assembling finishes.

Like this, compare with the prior art product, the part number has reduced, and then, because cut down little spring part etc., simplified formation, so assembling becomes very simple.

(10) variation of clip feed mechanism

Figure 28 is the figure that the another kind of expression clip feed mechanism 34 constitutes.Clip feed mechanism 34 in this variation along by the axially extended clamp stand 342 of bar portion 14, give clamp stand 342 to back-moving spring 244 (boosting mechanism), the back-moving spring 244 of axial rearward direction reinforcing be wound in spring shaft 245 on its side face, insert rear push-rod 202 and can along laterally just the card that shakes of left and right directions end member 346 and the reposition lever 348 that is sticked among the formed connecting hole 162d in aforementioned rear end at cartridge 162 constitutes.Moreover the member same with aforementioned formation is endowed same label.

Clamp stand 342 is there is not stop hole 242c with the difference of clamp stand 242, but forms the breach hole 342c of sidepiece shortcoming.Breach hole 342c lacks greater than the 1st breach hole 342c1 of the left and right directions centrage of clamp stand 342 and is positioned at 342c1 the place ahead, the 1st breach hole by being positioned at the rear portion, shortcoming is formed less than the 2nd breach hole 342c2 of left and right directions centrage.Other aspects and clamp stand 242 are much at one.

It is the leaf springs that are made of metal that card ends member 346, embeds among the slotted hole 202b of rear push-rod 202, and an end is installed among the slotted hole 202b of rear push-rod 202.In addition, portion forms the outstanding fastener 346b from slotted hole 202b atop, and this fastener 346b can be in the scope of slotted hole 202b is that the center is shaken along left and right directions with aforementioned mounting points.It is afterburning so that become parallelly vertically in slotted hole 202b all the time by the elasticity of its leaf spring that card ends member 346, and aforementioned fastener 346b is limited to the 1st breach hole 342c1 of the breach hole 342c of aforementioned clamp stand 342.

In addition, form the wide more cam surface 348d of left and right directions more forward in the rear end of reposition lever 348.It is relevant that this cam surface 348d and aforementioned card end member 346, make fastener 346b that card ends member 346 to laterally just left and right directions move the effect that performance retreats clamp stand 342.

In the clip feed mechanism 34 that as above, is constituted, also similarly act on clip feed mechanism 24.That is to say that if rear push-rod 202 advances, then card ends member 346 and advances together, is limited among the 1st breach hole 342c1 of clamp stand 342, so clamp stand 342 also advances together because card ends the fastener 346b of member 346.Clamp stand 342 advances, and its front end is released the clip C of front and led as shown in Figure 25 between jaw key element 18a, the 18a of jaw 18.Then, card ends the fastener 346b and the cam surface 348d interference that is positioned at reposition lever 348 rear ends of member 346.As shown in Figure 29, by this cam surface 348d make card end member 346 to the left and right direction shake, the card only fastener 346b of member 346 withdraws from from the 1st breach hole 342c1 of clamp stand 342.Whereby, clamp stand 342 ends member 346 from card frees, so retreat by the loading force of back-moving spring 244.

In addition, if clip C give the end of job, rear push-rod 202 retreats, then card ends member 346 and also retreats, its fastener 346b is limited among the 1st breach hole 342c1 of the clamp stand 342 that has before retreated once more by the 2nd breach hole 342c2 of clamp stand 342.

So, same with clip feed mechanism 24, also can use the card of forming by flat spring to end member 346 and constitute clip feed mechanism 34.

(11) decomposition texture of handle portion

If used up clip, then be necessary to dispose.The disposal step of proficiency shank 12 describes at this point below.At first, the knob 142 that unscrews bar portion 14 and handle portion 12 revolve being threaded of reducing sleeve 130, barre portion 14 separates from handle portion 12.

Then, if the direction promotion forms by punching press on the housing face of right shell 121 of aforementioned handle and handle left side shell 122 respectively in housing flexure strip 121a, 122a, flexure strip 121a, 122a are sticked on the rib 130b, then base portion 130a handle housing 124 rotations relatively.If under this state, turn threaded portion 130c with respect to base portion 130a with spanner etc., then revolve reducing sleeve 130 disrumpent feelings at frangible portion 130e place (with reference to Fig. 5 (c)), the back-moving spring 132 that is positioned at the enclosure interior space can take out (Figure 30).So, because can take out back-moving spring 132 as unique metal parts, all the other are plastic parts, so can dispose metal parts and plastic part respectively.

In addition, also can optionally stop the rotation of revolving reducing sleeve 130 with the adnexa shown in Figure 31 134.The projection 134b that adnexa 134 forms annular main body 134a and forms corresponding to aforementioned adnexa patchhole 130f from main body 134a.The aforementioned threaded portion 130c that revolves reducing sleeve 130 can be by the inboard of circumferential body 134a.In addition, at the front opening place of handle housing 124, between right shell 121 of handle and handle left side shell 122, form the gap, this gap becomes narrow slit 124e, 124e, narrow slit 124e, 124e become the interval and the number that are communicated with adnexa patchhole 130f when adjusting with adnexa patchhole 130f.

When decomposing, unload lower knob 142, decomposed after bar portion 14 and the handle portion 12, as shown in Figure 32, the threaded portion 130c that revolves reducing sleeve 130 was inserted the main body 134a of adnexa 134, projection 134b was inserted among the adnexa patchhole 130f via aforementioned narrow slit 124e, 124e.Whereby, the base portion 130a that revolves reducing sleeve 130 just can not rotate with respect to handle housing 124.If turn threaded portion 130c with spanner etc. with respect to base portion 130a under this state, it is disrumpent feelings at frangible portion 130e place then to revolve reducing sleeve 130, and the back-moving spring 132 that is positioned at the enclosure interior space can take out.

Carrying out high temperature high pressure sterilizing with autoclave after metal back-moving spring 132 is checked can reuse.In addition, reuse after also can sterilizing about remaining plastic part.If for example open the processing method described in the flat 9-990919 communique with the spy, then by the accompanying plastic part of biological agents that amino is arranged is mixed with the epoxide that the oxirane ring is arranged, produce the ring-opening reaction of the oxirane ring of the epoxide that aforementioned amino causes, generate the fixed thing of plastic part and curable epoxide resin, after sterilizing, it is possible utilizing again.

Claims (11)

1. clip applicator for surgery, have: handle portion, from the handle portion bar portion of distolateral extension forward, be fixed in the aforementioned rod portion, guide the guiding mechanism of a plurality of clips of configuration in upright arrangement in bar portion vertically, be disposed near the leading section of this bar portion, having can be at the jaw that leaves a pair of jaw key element that moves between position and the approximated position, extending through also can be according to the axially movable push rod of the operation of aforementioned handle portion in the bar portion, make the jaw key element of aforementioned jaw move to the jaw latch members of using the approximated position according to moving axially of push rod, and be disposed in the bar portion, aforementioned clip is pushed one by one successively the clip feed mechanism between a pair of jaw key element of aforementioned jaw, and clip given on the bodily tissue, it is characterized in that

Aforementioned clip feed mechanism is by extending through in the bar portion and clip is supplied to clamp stand between aforementioned jaw key element, give the boosting mechanism of clamp stand towards the axial rearward direction reinforcing, be installed on the push rod and have the fastener that suppresses towards the direction that is limited to clamp stand by the elastic force of self can strain card end member, and end member the place ahead at aforementioned card and constitute to putting mobile reset components with the non-card stop bit of clamp stand at bar portion internal fixation and the fastener that makes aforementioned card end member.

2. clip applicator for surgery according to claim 1, it is characterized in that, aforementioned card ends member and makes ' ヘ ' font, the fastener that is limited on the aforementioned clamp stand is set on Qi Ding top, hinged hinged portion on aforementioned push rod is set in the portion of a side limit, in the portion of the opposing party's limit flat spring portion is set, aforementioned reset components has and acts on that aforementioned card ends on the member and the aforementioned fastener cam surface that pushes of direction downwards.

3. clip applicator for surgery according to claim 1, it is characterized in that, aforementioned card ends member and is formed also and can be installed on the aforementioned push rod with rocking from side to side by flat spring, the fastener be limited on the aforementioned clamp stand is set on Qi Ding top, and aforementioned reset components has and acts on that aforementioned card ends on the member and aforementioned fastener or the cam surface that pushes of right left.

4. according to the clip applicator for surgery described in the claim 1 to 3 any one, it is characterized in that, in aforementioned guiding mechanism, have the prevention mechanism that when last clip is pushed between the jaw key element by clamp stand, stops clamp stand to retreat, form the catch portion that stops aforementioned push rod to retreat in the rear end of clamp stand.

5. according to the clip applicator for surgery described in the claim 1 to 4 any one, it is characterized in that aforementioned jaw latch members integrally is connected on the aforementioned push rod.

According to the surgery described in the claim 1 to 5 any one with being sandwiched in applicator, it is characterized in that, aforementioned guiding mechanism is made of cartridge and the clip lid that covers this cartridge upside, cartridge and clip lid in conjunction with and be divided into the cartridge inner space, configuration gives clip forwards afterburning clip spring in the cartridge inner space, bear spring force by a certain side in cartridge and the clip lid from this clip spring rear end, and this cartridge and clip lid come combination with a certain side in the clip lid to the relative slip in certain other direction rear by making aforementioned cartridge, with a certain side in the clip lid combination are removed in the relative slip in certain other direction the place ahead by making aforementioned cartridge.

7. surgery operating grip decomposition texture, this surgery operating grip be in handle casing forwards, backwards direction push rod is set movably, push rod can be installed on the trigger of handle casing movably by operation and forwards move, it is characterized in that,

Dispose cylindrical shell on the front opening of handle casing, push rod is afterburning towards the rear by the back-moving spring that is clipped between cylindrical shell and the push rod,

Aforementioned cylindrical shell has the base portion that is disposed at handle casing inside, be disposed at the external connecting of handle casing outside, and between base portion and external connecting formed frangible portion, by turning external connecting with respect to base portion, cylindrical shell can be disrumpent feelings at this frangible portion place, and aforementioned back-moving spring can take out from this disrumpent feelings cylindrical shell.

8. surgery operating grip decomposition texture according to claim 7, it is characterized in that, aforementioned base portion can dispose rotatably with respect to handle casing, on the handle casing of aforementioned base portion, form can strain flexure strip, this flexure strip can be sticked on the aforementioned base portion.

9. according to claim 7 or 8 described surgery operating grip decomposition textures, it is characterized in that, form a plurality of a plurality of adnexa patchholes that can be communicated with formed a plurality of narrow slits on the peripheral part at the aforementioned front opening of aforementioned handle casing in the front face side of aforementioned base portion, formed projection can be inserted this narrow slit and adnexa inserts in the hole on adnexa.

10. according to the surgery operating grip decomposition texture described in the claim 7 to 9 any one, it is characterized in that, its moving direction forms ratchet in the push rod upper edge, in handle casing, dispose pawl component, the head central part of this pawl component is hinged on handle casing, the head front end of this pawl component is made herringbone, on its two inclined-plane, form ratchet respectively with the ratchet engagement of push rod, on pawl component and then form from its head to the plate spring part of stretching out facing to preceding extreme direction, the flat spring portion that forms the restriction pawl component in this handle casing is the restriction portion of the slewing area at center with aforementioned hinged.

11. clip applicator for surgery, have: handle portion, from the handle portion bar portion of distolateral extension forward, be fixed in the aforementioned rod portion, be directed at the guiding mechanism of a plurality of clips of configuration in upright arrangement in the bar portion vertically, be disposed near the leading section of this bar portion, having can be at the jaw that leaves a pair of jaw key element that moves between position and the approximated position, extending through also can be according to the axially movable push rod of the operation of aforementioned handle portion in the bar portion, make the jaw key element of aforementioned jaw move to the jaw latch members of using the approximated position according to moving axially of push rod, and be disposed in the bar portion, aforementioned clip is pushed one by one successively the clip feed mechanism between a pair of jaw key element of aforementioned jaw, and clip given on the bodily tissue, it is characterized in that

Aforementioned handle portion can be separated with aforementioned rod portion.

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