CN100435877C - Disposable self-destroyed anaesthesia needle syringe - Google Patents

Disposable self-destroyed anaesthesia needle syringe Download PDF

Info

Publication number
CN100435877C
CN100435877C CNB2006100816284A CN200610081628A CN100435877C CN 100435877 C CN100435877 C CN 100435877C CN B2006100816284 A CNB2006100816284 A CN B2006100816284A CN 200610081628 A CN200610081628 A CN 200610081628A CN 100435877 C CN100435877 C CN 100435877C
Authority
CN
China
Prior art keywords
needle
liquid medicine
head
medicine bottle
needle tubing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2006100816284A
Other languages
Chinese (zh)
Other versions
CN1843519A (en
Inventor
李文勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNB2006100816284A priority Critical patent/CN100435877C/en
Publication of CN1843519A publication Critical patent/CN1843519A/en
Application granted granted Critical
Publication of CN100435877C publication Critical patent/CN100435877C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention relates to a disposable self-destroyed anaesthesia needle syringe with a liquid medicine bottle, which ensures that after finish injecting, the syringe is not used any longer. The present invention comprises a needle tube, a protective hand installed on the tail part of the needle tube, a needle and a liquid medicine bottle which is filled with liquid medicine, and the needle head has a needle tip; the head part of the needle tube is provided with a penetrating open of the needle tip of the needle head, and the back part of the liquid medicine bottle installed in the needle tube is provided with a back piston; the inner diameter of the back piston is smaller than the outer diameter of the liquid medicine bottle, and a push rod is inserted at the inner hole of the back piston; the needle tube, the back piston and the protective hand are fixed together, and the inner diameter of the back piston forms a step shape; the head part of the push rod is provided with a reverse tooth, plus the diameter of the push rod of the reverse tooth is bigger than the smallest inner diameter of the back piston, and the present invention has the advantages of novel structure, economy, utility, capability of stopping the reuse of the syringe and disease cross infection avoidance.

Description

Disposable self-destroyed anaesthesia needle syringe
Technical field
The invention belongs to technical field of medical instruments, relate in particular to a kind of built-in liquid medicine bottle and guarantee that injector to inject can't reusable disposable self-destroyed anaesthesia needle syringe after intact.
Technical background
In the syringe of traditional injection anaesthetic, a kind of is the glass syringe that carries out disinfection repeatedly and use, another kind is that disposable use is depleted plastic injector, these two kinds of syringes in use, all need earlier syringe needle to be inserted in the ampere bottle that the anaesthetic medicinal liquid is housed, the patient is injected behind the suction anaesthetic medicinal liquid again, its syringe and anaesthetic medicine bottle are split settings, inefficiency during injection, complex operation.In order to overcome above-mentioned defective, also occurred at present syringe and the ampere bottle syringe that combines, utility model patent as patent No. CN98249286.3, the dentistry anesthetics syringe that a kind of dentistry is used is disclosed, the ampere bottle and the syringe needle of this syringe are disposable uses, and syringe is reusable, therefore this dentistry anesthetics syringe can't be guaranteed after injection finishes, the self-destruction of syringe itself, fundamentally do not stop reusable phenomenon, health that can't the warrantor.Conventional injector is after finishing using simultaneously, and when the collection personnel of syringe discarded syringe in collection, the syringe needle that will be exposed was stabbed because of carelessness, and safety is very poor.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art existence and provide a kind of syringe of can stopping to reuse, avoid the intercrossing infection of disease, safe and reliable disposable self-destroyed anaesthesia needle syringe.
The object of the present invention is achieved like this: the needle tubing that comprises cylinder type hollow, be fixedly mounted on the handguard of needle tubing afterbody, the middle part is installed in the needle tubing head and two all has tip needle, pack in the needle tubing and withstand on the head band rubber closure of needle tubing head end and afterbody bottle chamber in the rubber closure that slides of band with and in the liquid medicine bottle of liquid medicine is housed, the needle tubing head is provided with the mouth that penetrates of needle tip, pack into and fill in after the interior liquid medicine bottle rear portion of needle tubing is equipped with, back plug internal diameter is less than the external diameter of liquid medicine bottle, in the plug endoporus of back, be inserted with push rod, needle tubing, back plug and handguard are fixed together, the internal diameter of back plug is stepped internal diameter, head at push rod has pawl, adds the minimum diameter of the rod diameter of upper inverted tooth greater than the back plug.
Be provided with in the rear end of handguard and bump perforation, after be provided with pawl on the wall beyond the Great Wall, the back plug is by behind the spring compression liquid medicine bottle, by pawl with bump cooperating of perforation and be fixedly mounted on the handguard.
The syringe needle middle part is threaded needle cap, and needle cap is installed on the thread head of needle tubing head by being threaded, and its needle point passes in the thread head insertion liquid medicine bottle of needle tubing head.
The rubber closure that the push rod that is inserted with in the plug endoporus of back promotes in the liquid medicine bottle slides, being provided with pit on the preceding top of push rod matches with spring, hook rubber closure after spring rotates and pull out liquid medicine bottle, front middle part at push rod is provided with the groove that fractures, fracture groove again be located at after beyond the Great Wall line fork match.
On the afterbody outer wall of needle tubing, be provided with oblique back-off tooth, tiltedly bumping to bore a hole and match on back-off tooth and the handguard.It is empty to be provided with observation at needle tubing.
The present invention has novel structure, and is economical and practical, can stop syringe and reuse, and avoids the advantage of the intercrossing infection of disease.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a needle head structure sketch map of the present invention.
Fig. 3 is a needle tubing structural representation of the present invention.
Fig. 4 is a handguard structural representation of the present invention.
Fig. 5 is a liquid medicine bottle structural representation of the present invention.
Fig. 6 is a compression spring structure sketch map of the present invention.
Fig. 7 is a back of the present invention plug structure sketch map.
Fig. 8 is a buckle spring structure sketch map of pulling out liquid medicine bottle of the present invention.
Fig. 9 is a pusher structure sketch map of the present invention.
Figure 10 is an injection pre-structure sketch map of the present invention.
Figure 11 is an injection of the present invention back structural representation.
The specific embodiment
As shown in the figure, the present invention includes the needle tubing 1 of cylinder type hollow, the handguard 2, the middle part that are fixedly mounted on needle tubing 1 afterbody be installed in needle tubing 1 head and two all has tip needle 3, in the needle tubing 1 of packing into and withstand on band slides in the head band rubber closure of needle tubing 1 head end and the afterbody bottle chamber rubber closure 5 with and in the liquid medicine bottle 4 of liquid medicine is housed.On needle tubing 1, be provided with observation port 11, can see the situation of liquid medicine bottle 4 by this hole.Needle tubing 1 head is threaded head, and be provided with the mouth that penetrates of syringe needle 3 needle points at needle tubing 1 head, the syringe needle middle part that cooperates with needle tubing 1 head threads simultaneously is threaded needle cap, needle cap is installed on the thread head of needle tubing 1 head by being threaded, and its needle point passes in the thread head insertion liquid medicine bottle 4 of needle tubing 1 head.Be needle point insert head band rubber closure in be equipped with in the liquid medicine bottle 4 of liquid medicine.
Shown in Fig. 3,4,5,6,7, liquid medicine bottle 4 rear portions of packing in the needle tubing 1 are equipped with back plug 6, are provided with in the rear end of handguard 2 and bump perforation 7, are provided with pawl 13 on plug 6 outer walls of back, after back plug 6 compresses liquid medicine bottle 4 by spring 16,7 cooperate and be fixedly mounted on the handguard 2 with bumping to bore a hole by pawl 13.Open by pit 19 on the end face of handguard 2, making the back, plug sleeve is fashionable packs into easily, pawl 13 with bump after perforation 7 cooperates, afterwards fill in 6 and can not dismantle from handguard 2.One side of handguard pulls the position and pulls 12 for original shape, plays the effect that makes the easily past post-tensioning of push rod.As the process of having tooth pulled out contains pus sometimes, needs the empyema in the post-tensioning extraction tooth, is designed to use when the right-hand man can not catch syringe simultaneously.
On needle tubing 1 afterbody fixed installation handguard 2 is meant by the afterbody outer wall at needle tubing 1, be provided with oblique back-off tooth 10, tiltedly bump perforation 9 realization that matches on back-off tooth 10 and the handguard 2.Therefore needle tubing 1, back plug 6 and handguard 2 are fixed together, and handguard plays fixedly needle tubing 1 and back and fills in 6 effect.Make needle tubing 1, back plug 6 and handguard 2 form secure fit, guarantee that needle tubing 1, back plug 6 and handguard 2 are not quick detachable after cooperating.Bump perforation 9 for slot, match with the oblique back-off tooth 10 of rectangle.
The external diameter of 6 internal diameters less than liquid medicine bottle 4 filled in the back, reaches like this liquid medicine bottle 4 can not be passed from plug 6 internal diameters of back.
Shown in Fig. 5,6,8,9, be inserted with push rod 8 in back plug 6 endoporus, the push rod 8 that is enclosed within the plug endoporus of back can move left and right, and the internal diameter of back plug 6 is stepped internal diameter, head at push rod 8 has pawl 15, adds the minimum diameter of the rod diameter of upper inverted tooth greater than back plug 6.Therefore push rod 8 inserts back plug endoporus easily and enters in the needle tubing 1, but because of the effect of stepped internal diameter step, can not extract from the internal diameter of back plug 6.The rubber closure 5 that the push rod 8 that is inserted with in plug 6 endoporus of back, push rod 8 promote in the liquid medicine bottle 4 slides, and is provided with pit on the preceding top of push rod 8 and matches with spring 17, hooks rubber closure 5 after spring 17 rotates and pulls out liquid medicine bottle 4.
Shown in Fig. 7,10,11, be provided with the groove 18 that fractures at the front middle part of push rod 8, fracture groove 18 again be located at back plug 6 on line fork 14 match.After having injected, push rod 8 can fracture by the groove 18 that fractures that its front middle part is provided with, and reaches and stops the reusable purpose of syringe.
During use, the syringe needle of screwing on is taken away line fork 14, and push rod pushes away forward just and can inject.Injection finishes, and push rod is pushed away forward and clockwise rotates, and the buckle spring of push rod head just fastens the rubber stopper in the liquid medicine bottle 4, and under the drive of post-tensioning, rubber stopper is drawn out outside the bottleneck, makes things convenient for collection and treatment at push rod.

Claims (6)

1, a kind of disposable self-destroyed anaesthesia needle syringe, the needle tubing (1) that comprises cylinder type hollow, be fixedly mounted on the handguard (2) of needle tubing (1) afterbody, the middle part is installed in needle tubing (1) head and two all has tip needle (3), pack in the needle tubing (1) and withstand on the head band rubber closure of needle tubing (1) head end and afterbody bottle chamber in the rubber closure (5) that slides of band with and in the liquid medicine bottle (4) of liquid medicine is housed, it is characterized in that: needle tubing (1) head is provided with the mouth that penetrates of syringe needle (3) needle point, pack into and fill in (6) after interior liquid medicine bottle (4) rear portion of needle tubing (1) is equipped with, back plug (6) internal diameter is less than the external diameter of liquid medicine bottle (4), in plug (6) endoporus of back, be inserted with push rod (8), be provided with first in the rear end of handguard (2) and bump perforation (7), on plug (6) outer wall of back, be provided with pawl (13), after back plug (6) compresses liquid medicine bottle (4) by spring (16), bump by pawl (13) and first and to be fixedly mounted on cooperating of perforation (7) on the handguard (2), the internal diameter of back plug (6) is stepped internal diameter, head at push rod (8) has pawl (15), add the minimum diameter of the rod diameter of upper inverted tooth greater than back plug (6), be provided with oblique back-off tooth (10) on the afterbody outer wall of needle tubing (1), tiltedly second on back-off tooth (10) and the handguard (2) bumps perforation (9) and matches.
2, disposable self-destroyed anaesthesia needle syringe according to claim 1, it is characterized in that: the syringe needle middle part is threaded needle cap, needle cap is installed in by being threaded on the thread head of needle tubing (1) head, and its needle point passes in the thread head insertion liquid medicine bottle (4) of needle tubing (1) head.
3, disposable self-destroyed anaesthesia needle syringe according to claim 1, it is characterized in that: the rubber closure (5) that the push rod (8) that is inserted with in plug (6) endoporus of back promotes in the liquid medicine bottle (4) slides, be provided with pit matches with spring (17) on the preceding top of push rod (8), hooking rubber closure (5) after spring (17) rotates pulls out outside the bottleneck of liquid medicine bottle (4), front middle part at push rod (8) is provided with the groove that fractures (18), the groove that fractures (18) again be located at back plug (6) on line fork (14) match.
4, disposable self-destroyed anaesthesia needle syringe according to claim 1 is characterized in that: be provided with observation port (11) on needle tubing (1).
5, disposable self-destroyed anaesthesia needle syringe according to claim 1 is characterized in that: have pit (19) on the end face of handguard (2).
6, disposable self-destroyed anaesthesia needle syringe according to claim 1 is characterized in that: one side the position that pulls of handguard pulls (12) for circle.
CNB2006100816284A 2006-05-10 2006-05-10 Disposable self-destroyed anaesthesia needle syringe Expired - Fee Related CN100435877C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100816284A CN100435877C (en) 2006-05-10 2006-05-10 Disposable self-destroyed anaesthesia needle syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100816284A CN100435877C (en) 2006-05-10 2006-05-10 Disposable self-destroyed anaesthesia needle syringe

Publications (2)

Publication Number Publication Date
CN1843519A CN1843519A (en) 2006-10-11
CN100435877C true CN100435877C (en) 2008-11-26

Family

ID=37062506

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006100816284A Expired - Fee Related CN100435877C (en) 2006-05-10 2006-05-10 Disposable self-destroyed anaesthesia needle syringe

Country Status (1)

Country Link
CN (1) CN100435877C (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1049285A (en) * 1989-07-11 1991-02-20 格里哈姆·享格·维廉姆斯 The disposable hypodermic syringe of retractable needle
CN1055669A (en) * 1990-01-09 1991-10-30 加塔诺·纳希 A kind of hypodermic syringe that to return and to hold the hypodermic needle plunger after injection finishes that has
US5490842A (en) * 1989-07-18 1996-02-13 Tri/West Systems, Inc. Syringe plunger rod mount
WO2000006231A1 (en) * 1998-07-29 2000-02-10 Becton, Dickinson And Company Fluid transfer device having improved needle attaching features, in particular for hypodermic needles
US6569126B1 (en) * 1997-07-14 2003-05-27 Novo Nordisk A/S Cylinder ampoule
CN2889330Y (en) * 2006-05-10 2007-04-18 李文勇 Disposable safety and self-destruction type anesthesia injector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1049285A (en) * 1989-07-11 1991-02-20 格里哈姆·享格·维廉姆斯 The disposable hypodermic syringe of retractable needle
US5490842A (en) * 1989-07-18 1996-02-13 Tri/West Systems, Inc. Syringe plunger rod mount
CN1055669A (en) * 1990-01-09 1991-10-30 加塔诺·纳希 A kind of hypodermic syringe that to return and to hold the hypodermic needle plunger after injection finishes that has
US6569126B1 (en) * 1997-07-14 2003-05-27 Novo Nordisk A/S Cylinder ampoule
WO2000006231A1 (en) * 1998-07-29 2000-02-10 Becton, Dickinson And Company Fluid transfer device having improved needle attaching features, in particular for hypodermic needles
CN2889330Y (en) * 2006-05-10 2007-04-18 李文勇 Disposable safety and self-destruction type anesthesia injector

Also Published As

Publication number Publication date
CN1843519A (en) 2006-10-11

Similar Documents

Publication Publication Date Title
CN100435877C (en) Disposable self-destroyed anaesthesia needle syringe
CN2889330Y (en) Disposable safety and self-destruction type anesthesia injector
CN208877568U (en) A kind of children special-purpose disposable syringe
CN102935255B (en) Pre-filling-and-sealing syringe structure for mixing
WO2012115692A1 (en) High volume carpule system
CN100418593C (en) Disposable self-destructing safety anesthesia syringe
CN100413550C (en) Disposable self-destruction safety syringe
CN200954296Y (en) Disposable self-damaged safety anesthesia injector
CN209771024U (en) Low-residue safe self-destruction syringe
CN202844260U (en) Injection mixing pre-filling and pre-sealing injector structure
CN202777336U (en) Atomizing type injector with dosage connection opening
CN201082281Y (en) Safe syringe
CN202982811U (en) Pre-filling syringe structure for medicine mixing
CN2686631Y (en) Needle-changing auxiliary adaptor structure for haulback type safety syringe
EP1882459A3 (en) Extractable device with filler for inserting medicine into animal tissue
CN217660989U (en) Auxiliary device of anticoagulant hypodermic syringe
CN204446821U (en) A kind of vented vacuum syringe
CN201055572Y (en) Disposable self-destroyable syringe
CN202844258U (en) Pre-filled injector for blending drugs
CN215022369U (en) A dispensing device for attritase configuration
CN201418926Y (en) Combined drug storage injector
CN2887328Y (en) Disposable self-destructed safety syringe
CN206198402U (en) Syringe
CN202982796U (en) Structure of mixed drug pre-filled syringe
CN201350261Y (en) Medical injector rejecting repeated use

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081126

Termination date: 20100510