US3135259A - Infusion flow control valve - Google Patents

Infusion flow control valve Download PDF

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Publication number
US3135259A
US3135259A US33545563A US3135259A US 3135259 A US3135259 A US 3135259A US 33545563 A US33545563 A US 33545563A US 3135259 A US3135259 A US 3135259A
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Prior art keywords
blood
roller
tube
needle
flow control
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Robert P Evans
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Sterilon Corp
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Sterilon Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/39—Cord and rope holders
    • Y10T24/3993—Ball or roller

Definitions

  • a disposable inexpensive blood-taking apparatus which embodies in sterile condition all necessary elements including flexible tubing, bottle and infusion canules and flow control means, required for making the connection from the donors vein to the blood receiving bottle.
  • the present invention provides an improved combined bottle needle, handle, and flow control valve such as to facilitate manipulation of the needle and operation of the valve and to minimize the cost of such apparatus.
  • one object of the present invention is to provide an improved blood-taking device.
  • Another object of the invention is to provide a bloodtaking device as' aforesaid having an improved valve means which is more readily manipulated between valve open and closed positions.
  • a further object of the invention is to provide an improved blood-taking apparatus having a novel combination bottle needle handle and flow control device in which the flow control device tends to automatically assume and maintain a closed position during bottle stopper insertion of the needle.
  • Another object of the invention is to provide an improved bottle needle handle and flow control device as aforesaid which is operably efficient yet inexpensive to manufacture.
  • FIG. 1 is a view of a preferred embodiment of the improved blood-taking device of the invention in use
  • FIG. 2 is a side elevational view of the bottle needle, valve and handle components of the device of FIG. 1, on an enlarged scale; 7
  • FIG. 3 is a sectional view of the parts taken along line III-III of FIG. 3 and showing alternative valve open and closed positions;
  • FIG. 4 is a fragmentary sectional view similar to FIG. 3 but showing the valve of the apparatus in partly closed or throttling position.
  • FIG. I a bloodtaking device embodying the invention is illustrated in FIG. I as comprising an intravenous blood-taking canule or needle 10 and a blood receiving bottle needle 12, together with interconnecting conduit means including a continuous flexible tubing 14 and a flow control valve indicated generally at 15.
  • the respective ends of the tubing 14 are fitted over the stern ends of the respective needles 1tl-12 and are clamped in place thereon by overlying sleeve members United States Patent 18, 28, which are swaged thereon to form a fluid tight conduit from one needle to the other.
  • the infusion needle sleeve 18 carries an externally knurled hub 21 for manual gripping and guiding of the needle.
  • the distal end of the hub 21 is notched as indicated at 22 to provide a visual and touch-sensitive index to the attitude of the bevel on the point of needle 10.
  • the valve 15 comprises a generally.
  • U-shaped transparent plastic body portion open at one end as indicated at 26 and at one side as indicated at 27 and closed at its other end by means of a flanged hub to accommodate in rolling relation the valve device roller,
  • valve body 35 having stub shafts 36-36 extending from opposite sides thereof into the corresponing slots 34-34.
  • the back wall portion 37 of the valve body member is sloped as clearly show in FIGS. 1, 3, 4 relative to the slots 34-34.
  • journal slots 34-34 will permit rolling reciprocation of the roller 35 in thebody portion within the limits defined by the slots 34,.
  • the tubing 14 is preferably made of -a moder ately firm material, such as acetate or polyvinyl; and a. slight dwell as indicated at 40 is preferably provided at the closed end of each slot 34 to permit the stub shafts 36-36 to seat down in closed position, thereby providing a kind of snap action for the valve deivce.
  • the side portions 32-32 are chamfered to facilitate assembly of the device.
  • the roller 35 may be snap-fitted into operative position by forcing the ends of the stub-shafts 36-36 to cam against and spread the sloping side portions until they snap into the slots 34-34.
  • the blood-taking apparatus embodying the invention is supplied in sterile condition.
  • closed sterility protective covers as indicated at 46 and 48 are slip-fitted in air-tight manner over the respective hubs 18, 20, with their open end portions embracing in air-sealing relation the sleeves 18, 20, respectively; and with their ends abutting the enlarged hub portions 21, 29, respectively.
  • the covers 46, 48 as well as the tubing 14 are fabricated of material which is permeable to a gaseous sterilizing agent such as formaldehyde or ethylene oxide.
  • the covers and tubing may be fabricated of polyvinyl, polystyrene, polyethylene, rubber or the like.
  • the entire apparatus is placed within a sterilizing chamber, and the needles and the fluid conduit system are rendered sterile by causing the sterilizing agent to permeate the tubing and covers; the air-tight connections of the covers and the tubing operating subsequently to maintain such sterility until the apparatus is used.
  • This method eliminates necessity for the use of a cotton plug or other bacteria-retentive filter or the like in the covers during the sterilizing operation, and subsequent sealing of the covers behind the plug, such as in accord with previously conventional practice. Also this method facilitates the sterilizing procedure and assembly for sterilization; and eliminates possibility of Patented June 2, 1964.
  • the flange 28 providing a comfortable abutment for application of finger pressure for forcing the needle through the resistant bottle stopper.
  • the blood-taking needle is then inserted in the vein of the'donor, and the roller 35 is manipulated to open position by rolling the thumb thereagainst, whereupon the pressure differential between the donors vein and the previously evacuated bottle 44 causes blood to flow through the tubing 14 into the receiving bottle.
  • the rate of flow of blood from the donor to the bottle may be minutely controlled with ease by the technician, by regulation of the position of the control heel 35'.
  • the operator When the desired amount of blood has been taken, or when the halting of the flow through the tubing 14 is desired for any reason, the operator simply rolls the valve to its tubing constricting or closed position, whereby the passageway through the tubing will be closed and the needles withdrawn without danger of contamination of the contents of the bottle and without danger of introduction of air or any other manner into the donors vein.
  • combination needle handle and flow control valve of the invention may be readily formed from molded plastic parts inexpensively,
  • the blood-taking device may be disposed of after one-time use. This obviates dangers of cross-contamination or lack of sterility in the blood conduit passageways, which sometimes occurs where it is attempted to recondition and resterilize similar reusable apparatus.
  • the combining of the tube seal and handle structures of the needle 12 with the flow control valve device facilitates convenient and rapid execution of the blood taking operation. While in the embodiment of the invention illustrated the valve equipped needle 12 is shown connected to a blood-receiving device, it will be understood that the placement of the needles and/or the flow of blood or the like could be reversed, and that one or both of the needles could be replaced with other conduit means.
  • the invention provides an inexpensive disposable'blood trans- '4 fer device which provides maximum safety and convenience in use; and that while only oneform of the invention has been shown and described in-detail it will be appreciated that the invention is not so limited but may be otherwise embodied within the spirit of the invention and the scope of the appended claims.
  • a hollow needle having a flexible tube connected thereto, a sleeve member fixed to the stem of the needle, and a flow control valve device embracingsaid tube
  • said valve device comprising a generally U-shaped body having slightly flexible spaced parallel side walls and an end portion bored to comprise a mounting hub receiving one end of said sleeve member in cantilever mounted relation therein, said side walls being formed with funnel shaped grooves at the outer ends of said walls leading toward parallel slots therethrough adapted to journal therein oppositely extending stub shafts of a roller device for longitudinal rolling thereof within said body, said body having a back wall portion inclined relative to said slots and located and dimensioned to freely accommodate therebetween said tube when said roller is in one position relative to said body and to tightly constrict said tube when said roller is shifted to a second position relative to said body.
  • a flow control valve device for embracing a flexible tube comprising a generally U-shaped body having slightly flexible spaced parallel side walls, said side walls being formed with funnel-shaped grooves at the outer ends of said side walls leading toward parallel slots therethrough adapted to journal therein oppositely extending stub shafts of a roller device for longitudinal rolling thereof within said body, said body having a back wall portion inclined relative to said slots, and located and dimensioned to freely accommodate therebetween a flexible tube when said roller is in one position relative to said body and to tightly constrict such tube when said roller is shifted to a second position relative to said body.

Description

June 2, 1964 R. P. EVANS 3,135,259
INFUSION FLOW CONTROL VALVE Original Filed June 25. 1957 INVENTOR. ROBERT/Q EVANS ATTORNEYS.
3,135,259 INFUION FLOW CONTRDL VALVE Robert P. Evans, Kenmore, N.Y., assignor, by mesne assignments, to Sterilon Corporation, a corporation of This invention relates to blood-taking apparatus such as for use in the making of blood donations to bloodbanks orthe like, and more particularly to an improved disposable, sterile, pyrogen-free and non-toxic flow controlling, conduit device for conveying blood from the donor to the conventional blood-bank bottle or other blood receiving device. This application is a continuation of application Serial No. 667,769, filed June 25, 1957, now abandoned.
In order to obtain optimum quality blood-bank supplies and to minimize the cost of taking blood for that purpose and to expedite the procedure for the convenience of the blood donors, it is desirable to have a disposable inexpensive blood-taking apparatus which embodies in sterile condition all necessary elements including flexible tubing, bottle and infusion canules and flow control means, required for making the connection from the donors vein to the blood receiving bottle. The present invention provides an improved combined bottle needle, handle, and flow control valve such as to facilitate manipulation of the needle and operation of the valve and to minimize the cost of such apparatus.
Accordingly, one object of the present invention is to provide an improved blood-taking device.
Another object of the invention is to provide a bloodtaking device as' aforesaid having an improved valve means which is more readily manipulated between valve open and closed positions.
A further object of the invention is to provide an improved blood-taking apparatus having a novel combination bottle needle handle and flow control device in which the flow control device tends to automatically assume and maintain a closed position during bottle stopper insertion of the needle.
Another object of the invention is to provide an improved bottle needle handle and flow control device as aforesaid which is operably efficient yet inexpensive to manufacture.
Other objects and advantages of the invention will be apparent from the following description and claims, and from the drawing in which:
FIG. 1 is a view of a preferred embodiment of the improved blood-taking device of the invention in use;
FIG. 2 is a side elevational view of the bottle needle, valve and handle components of the device of FIG. 1, on an enlarged scale; 7
FIG. 3 is a sectional view of the parts taken along line III-III of FIG. 3 and showing alternative valve open and closed positions; and
FIG. 4 is a fragmentary sectional view similar to FIG. 3 but showing the valve of the apparatus in partly closed or throttling position.
Referring more particularly to the drawing, a bloodtaking device embodying the invention is illustrated in FIG. I as comprising an intravenous blood-taking canule or needle 10 and a blood receiving bottle needle 12, together with interconnecting conduit means including a continuous flexible tubing 14 and a flow control valve indicated generally at 15. As shown in FIG. 3 of the drawing, the respective ends of the tubing 14 are fitted over the stern ends of the respective needles 1tl-12 and are clamped in place thereon by overlying sleeve members United States Patent 18, 28, which are swaged thereon to form a fluid tight conduit from one needle to the other. In addition, the infusion needle sleeve 18 carries an externally knurled hub 21 for manual gripping and guiding of the needle.
The distal end of the hub 21 is notched as indicated at 22 to provide a visual and touch-sensitive index to the attitude of the bevel on the point of needle 10.
As illustrated, the valve 15 comprises a generally.
U-shaped transparent plastic body portion open at one end as indicated at 26 and at one side as indicated at 27 and closed at its other end by means of a flanged hub to accommodate in rolling relation the valve device roller,
35 having stub shafts 36-36 extending from opposite sides thereof into the corresponing slots 34-34. The back wall portion 37 of the valve body member is sloped as clearly show in FIGS. 1, 3, 4 relative to the slots 34-34.
Thus, it will be seen that the journal slots 34-34 will permit rolling reciprocation of the roller 35 in thebody portion within the limits defined by the slots 34,.
and that when the roller is in its uppermost position as viewed in FIGS. 3-4, it will operate to constrict the tubing 14 thereby rendering the valve means in closed position. The resilient resistance of the tubing to constriction operates to prevent accidental displacement of the roller to and from either open or closed position.
To this end the tubing 14 is preferably made of -a moder ately firm material, such as acetate or polyvinyl; and a. slight dwell as indicated at 40 is preferably provided at the closed end of each slot 34 to permit the stub shafts 36-36 to seat down in closed position, thereby providing a kind of snap action for the valve deivce. As indicated at 41-41 (FIGS. 2, 4) the side portions 32-32 are chamfered to facilitate assembly of the device. Thus, the roller 35 may be snap-fitted into operative position by forcing the ends of the stub-shafts 36-36 to cam against and spread the sloping side portions until they snap into the slots 34-34.
Preliminary to use, the blood-taking apparatus embodying the invention is supplied in sterile condition. For this purpose closed sterility protective covers as indicated at 46 and 48 are slip-fitted in air-tight manner over the respective hubs 18, 20, with their open end portions embracing in air-sealing relation the sleeves 18, 20, respectively; and with their ends abutting the enlarged hub portions 21, 29, respectively. The covers 46, 48 as well as the tubing 14 are fabricated of material which is permeable to a gaseous sterilizing agent such as formaldehyde or ethylene oxide. For example, the covers and tubing may be fabricated of polyvinyl, polystyrene, polyethylene, rubber or the like. Then, the entire apparatus is placed within a sterilizing chamber, and the needles and the fluid conduit system are rendered sterile by causing the sterilizing agent to permeate the tubing and covers; the air-tight connections of the covers and the tubing operating subsequently to maintain such sterility until the apparatus is used. This method eliminates necessity for the use of a cotton plug or other bacteria-retentive filter or the like in the covers during the sterilizing operation, and subsequent sealing of the covers behind the plug, such as in accord with previously conventional practice. Also this method facilitates the sterilizing procedure and assembly for sterilization; and eliminates possibility of Patented June 2, 1964.
44, the flange 28 providing a comfortable abutment for application of finger pressure for forcing the needle through the resistant bottle stopper.
The blood-taking needle is then inserted in the vein of the'donor, and the roller 35 is manipulated to open position by rolling the thumb thereagainst, whereupon the pressure differential between the donors vein and the previously evacuated bottle 44 causes blood to flow through the tubing 14 into the receiving bottle. To prevent vein collapse and maximize donor comfort, the rate of flow of blood from the donor to the bottle may be minutely controlled with ease by the technician, by regulation of the position of the control heel 35'. When the desired amount of blood has been taken, or when the halting of the flow through the tubing 14 is desired for any reason, the operator simply rolls the valve to its tubing constricting or closed position, whereby the passageway through the tubing will be closed and the needles withdrawn without danger of contamination of the contents of the bottle and without danger of introduction of air or any other manner into the donors vein.
It will be appreciated that the combination needle handle and flow control valve of the invention may be readily formed from molded plastic parts inexpensively,
and thus it is practicable that the blood-taking device may be disposed of after one-time use. This obviates dangers of cross-contamination or lack of sterility in the blood conduit passageways, which sometimes occurs where it is attempted to recondition and resterilize similar reusable apparatus.
In addition to effecting manufacturing economies, it will be seen that the combining of the tube seal and handle structures of the needle 12 with the flow control valve device facilitates convenient and rapid execution of the blood taking operation. While in the embodiment of the invention illustrated the valve equipped needle 12 is shown connected to a blood-receiving device, it will be understood that the placement of the needles and/or the flow of blood or the like could be reversed, and that one or both of the needles could be replaced with other conduit means.
From the foregoing it will be appreciated that the invention provides an inexpensive disposable'blood trans- '4 fer device which provides maximum safety and convenience in use; and that while only oneform of the invention has been shown and described in-detail it will be appreciated that the invention is not so limited but may be otherwise embodied within the spirit of the invention and the scope of the appended claims.
I claim:
1. In a blood-taking.apparatus, a hollow needle having a flexible tube connected thereto, a sleeve member fixed to the stem of the needle, and a flow control valve device embracingsaid tube, said valve device comprising a generally U-shaped body having slightly flexible spaced parallel side walls and an end portion bored to comprise a mounting hub receiving one end of said sleeve member in cantilever mounted relation therein, said side walls being formed with funnel shaped grooves at the outer ends of said walls leading toward parallel slots therethrough adapted to journal therein oppositely extending stub shafts of a roller device for longitudinal rolling thereof within said body, said body having a back wall portion inclined relative to said slots and located and dimensioned to freely accommodate therebetween said tube when said roller is in one position relative to said body and to tightly constrict said tube when said roller is shifted to a second position relative to said body.
2. A flow control valve device for embracing a flexible tube comprising a generally U-shaped body having slightly flexible spaced parallel side walls, said side walls being formed with funnel-shaped grooves at the outer ends of said side walls leading toward parallel slots therethrough adapted to journal therein oppositely extending stub shafts of a roller device for longitudinal rolling thereof within said body, said body having a back wall portion inclined relative to said slots, and located and dimensioned to freely accommodate therebetween a flexible tube when said roller is in one position relative to said body and to tightly constrict such tube when said roller is shifted to a second position relative to said body.
References Qited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. IN A BLOOD-TAKING APPARATUS, A HOLLOW NEEDLE HAVING A FLEXIBLE TUBE CONNECTED THERETO, A SLEEVE MEMBER FIXED TO THE STEM OF THE NEEDLE, AND A FLOW CONTROL VALVE DEVICE EMBRACING SAID TUBE, SAID VALVE DEVICE COMPRISING A GENERALLY U-SHAPED BODY HAVING SLIGHTLY FLEXIBLE SPACED PARALLEL SIDE WALLS AND AN END PORTION BORED TO COMPRISE A MOUNTING HUB RECEIVING ONE END OF SAID SLEEVE MEMBER IN CANTILEVER MOUNTED RELATION THEREIN, SAID SIDE WALLS BEING FORMED WITH FUNNEL SHAPED GROOVES AT THE OUTER ENDS OF SAID WALLS LEADING TOWARD PARALLEL SLOTS THERETHROUGH ADAPTED TO JOURNAL THEREIN OPPOSITELY EXTENDING STUB SHAFTS OF A ROLLER DEVICE FOR LONGITUDINAL ROLLING THEREOF WITHIN SAID BODY, SAID BODY HAVING A BACK WALL PORTION INCLINED RELATIVE TO SAID SLOTS AND LOCATED AND DIMENSIONED TO FREELY ACCOMMODATE THEREBETWEEN SAID TUBE WHEN SAID ROLLER IS IN ONE POSITION RELATIVE TO SAID BODY AND TO TIGHTLY CONSTRICT SAID TUBE WHEN SAID ROLLER IS SHIFTED TO A SECOND POSITION RELATIVE TO SAID BODY.
US33545563 1963-12-12 1963-12-12 Infusion flow control valve Expired - Lifetime US3135259A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189038A (en) * 1962-06-08 1965-06-15 Baxter Don Inc Variable flow clamp for flexible tubing
US3289999A (en) * 1963-05-16 1966-12-06 Peter A Konzak Flow regulator for flexible tubes
DE2043551A1 (en) * 1969-09-08 1971-03-11 Adelberg M Method and device for controlling the flow through plastic pipes
US3861641A (en) * 1973-06-01 1975-01-21 Edwin S Kolic Metering hose clamp
US3893468A (en) * 1970-06-22 1975-07-08 American Hospital Supply Corp Clamp for flexible tube and method of regulating flow in such tube
US3915167A (en) * 1974-05-23 1975-10-28 Atlantic Design & Dev Corp Intravenous clamp
US4047541A (en) * 1976-04-15 1977-09-13 Julien Mercier Shower head liquid dispenser
US4238108A (en) * 1978-05-12 1980-12-09 Abbott Laboratories Flow control device
US4270725A (en) * 1979-11-27 1981-06-02 Baxter Travenol Laboratories, Inc. Roller clamp for defining a flow lumen in tubing
US4406440A (en) * 1980-03-25 1983-09-27 Baxter Travenol Laboratories, Inc. Flow regulating device
US4465471A (en) * 1981-08-26 1984-08-14 Eli Lilly And Company Intravenous administration system for dry medicine
US4566816A (en) * 1983-08-29 1986-01-28 Padco, Inc. Pressure fed paint roller
US4573993A (en) * 1983-09-29 1986-03-04 Instafil, Inc. Fluid transfer apparatus
US4643389A (en) * 1984-12-27 1987-02-17 American Hospital Supply Corporation Tubing occlusion clip
EP0239718A2 (en) * 1986-03-27 1987-10-07 B. Braun-SSC AG Protection device for a piercing needle for transfusion or infusion devices
US4869457A (en) * 1986-09-10 1989-09-26 Ewerloef Goeran Arrangement for controlling and regulating a liquid flowing through a line
WO1999022805A1 (en) * 1997-10-30 1999-05-14 Microwave Medical Systems, Inc. Roller clamp-connector assembly
US6022329A (en) * 1993-04-19 2000-02-08 Stryker Corporation Irrigation handpiece with built in pulsing pump
US6213970B1 (en) 1993-12-30 2001-04-10 Stryker Corporation Surgical suction irrigation
US6638269B2 (en) * 2001-03-19 2003-10-28 Robert L. Wilcox Catheter movement control device and method
US6746419B1 (en) 1993-04-19 2004-06-08 Stryker Corporation Irrigation handpiece with built in pulsing pump
US20070276437A1 (en) * 2006-05-25 2007-11-29 Mitralign, Inc. Lockers for surgical tensioning members and methods of using the same to secure surgical tensioning members
US7481791B2 (en) 2000-09-11 2009-01-27 Stryker Corporation Surgical suction irrigator
US9120111B2 (en) 2012-02-24 2015-09-01 Rain Bird Corporation Arc adjustable rotary sprinkler having full-circle operation and automatic matched precipitation
US9131939B1 (en) 2008-02-27 2015-09-15 Mitralign, Inc. Device for percutaneously delivering a cardiac implant through the application of direct actuation forces external to the body
US9156043B2 (en) 2012-07-13 2015-10-13 Rain Bird Corporation Arc adjustable rotary sprinkler with automatic matched precipitation
US9572933B2 (en) * 2014-09-19 2017-02-21 Shawn Grannell Extravasation detection apparatus and methods
US10265708B2 (en) * 2014-07-15 2019-04-23 Lunatec, Inc. Pressurizable fluid container and flexible dispenser

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US1425178A (en) * 1921-05-02 1922-08-08 Cowdrill Sidney Clasp
GB185235A (en) * 1921-06-04 1922-09-04 Charles William Kemper Improvements in cable clamps
US1959074A (en) * 1931-11-27 1934-05-15 Bloxsom Robert Gerry Tube clamp
US2309302A (en) * 1941-09-08 1943-01-26 Cutter Lab Transfusion equipment
US2595511A (en) * 1948-10-29 1952-05-06 Cutter Lab Pinch valve
US2707953A (en) * 1952-07-15 1955-05-10 Abbott Lab Transfusion equipment

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Publication number Priority date Publication date Assignee Title
US1425178A (en) * 1921-05-02 1922-08-08 Cowdrill Sidney Clasp
GB185235A (en) * 1921-06-04 1922-09-04 Charles William Kemper Improvements in cable clamps
US1959074A (en) * 1931-11-27 1934-05-15 Bloxsom Robert Gerry Tube clamp
US2309302A (en) * 1941-09-08 1943-01-26 Cutter Lab Transfusion equipment
US2595511A (en) * 1948-10-29 1952-05-06 Cutter Lab Pinch valve
US2707953A (en) * 1952-07-15 1955-05-10 Abbott Lab Transfusion equipment

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189038A (en) * 1962-06-08 1965-06-15 Baxter Don Inc Variable flow clamp for flexible tubing
US3289999A (en) * 1963-05-16 1966-12-06 Peter A Konzak Flow regulator for flexible tubes
DE2043551A1 (en) * 1969-09-08 1971-03-11 Adelberg M Method and device for controlling the flow through plastic pipes
US3893468A (en) * 1970-06-22 1975-07-08 American Hospital Supply Corp Clamp for flexible tube and method of regulating flow in such tube
US3861641A (en) * 1973-06-01 1975-01-21 Edwin S Kolic Metering hose clamp
US3915167A (en) * 1974-05-23 1975-10-28 Atlantic Design & Dev Corp Intravenous clamp
US4047541A (en) * 1976-04-15 1977-09-13 Julien Mercier Shower head liquid dispenser
US4238108A (en) * 1978-05-12 1980-12-09 Abbott Laboratories Flow control device
US4270725A (en) * 1979-11-27 1981-06-02 Baxter Travenol Laboratories, Inc. Roller clamp for defining a flow lumen in tubing
US4406440A (en) * 1980-03-25 1983-09-27 Baxter Travenol Laboratories, Inc. Flow regulating device
US4465471A (en) * 1981-08-26 1984-08-14 Eli Lilly And Company Intravenous administration system for dry medicine
US4566816A (en) * 1983-08-29 1986-01-28 Padco, Inc. Pressure fed paint roller
US4573993A (en) * 1983-09-29 1986-03-04 Instafil, Inc. Fluid transfer apparatus
US4643389A (en) * 1984-12-27 1987-02-17 American Hospital Supply Corporation Tubing occlusion clip
EP0239718A2 (en) * 1986-03-27 1987-10-07 B. Braun-SSC AG Protection device for a piercing needle for transfusion or infusion devices
EP0239718A3 (en) * 1986-03-27 1988-10-05 Egon Lesemann Protection device for a piercing needle, especially for transfusion or infusion devices
US4869457A (en) * 1986-09-10 1989-09-26 Ewerloef Goeran Arrangement for controlling and regulating a liquid flowing through a line
US6746419B1 (en) 1993-04-19 2004-06-08 Stryker Corporation Irrigation handpiece with built in pulsing pump
US6022329A (en) * 1993-04-19 2000-02-08 Stryker Corporation Irrigation handpiece with built in pulsing pump
US7144383B2 (en) 1993-04-19 2006-12-05 Stryker Corporation Surgical/medical irrigating handpiece with variable speed pump, integrated suction and battery pack
US6623445B1 (en) 1993-12-30 2003-09-23 Stryker Corporation Surgical suction irrigator
US6213970B1 (en) 1993-12-30 2001-04-10 Stryker Corporation Surgical suction irrigation
US7297133B2 (en) 1993-12-30 2007-11-20 Stryker Corporation Surgical suction irrigator
WO1999022805A1 (en) * 1997-10-30 1999-05-14 Microwave Medical Systems, Inc. Roller clamp-connector assembly
US7481791B2 (en) 2000-09-11 2009-01-27 Stryker Corporation Surgical suction irrigator
US6638269B2 (en) * 2001-03-19 2003-10-28 Robert L. Wilcox Catheter movement control device and method
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