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WO1988009679A1 - Seringue hypodermique - Google Patents

Seringue hypodermique Download PDF

Info

Publication number
WO1988009679A1
WO1988009679A1 PCT/US1988/001801 US8801801W WO8809679A1 WO 1988009679 A1 WO1988009679 A1 WO 1988009679A1 US 8801801 W US8801801 W US 8801801W WO 8809679 A1 WO8809679 A1 WO 8809679A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
plunger
barrel
opening
stops
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.)
Ceased
Application number
PCT/US1988/001801
Other languages
English (en)
Inventor
John Mcneirney
Charles M. Huck
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.)
Messer LLC
Original Assignee
BOC Group Inc
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 BOC Group Inc filed Critical BOC Group Inc
Publication of WO1988009679A1 publication Critical patent/WO1988009679A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing

Definitions

  • Hunt syringe arises from the fact that during retraction of the plunger, the piston is always in its unsealed condition. Thus, this syringe cannot be used for positively drawing blood into the syringe through the needle (to determine, for example, if the needle is properly inserted into a vein of a subject receiving an injection) by withdrawing the plunger to create a negative pressure within the barrel - the unsealed piston not allowing this.
  • a solution for this last named problem may exist in a syringe shown in U.S. Patent 3,511,239 to Tuschhoff, the patent specification, however, not describing the blood drawing procedure.
  • a piston is fixedly mounted on the end of a plunger, the seal of the piston with the inside wall of the barrel being such that the seal is broken upon retraction of the piston along the barrel.
  • the syringe also includes a stopper which seals the end of the barrel into which the plunger extends, the stopper being in sealed and slideable relation with both the plunger and the barrel inner wall.
  • FIG. 1 is a sectional view of a hypodermic syringe in accordance with one embodiment of the present invention; the syringe being in its filled, substance storing condi ⁇ tion;
  • the piston 30 is movable with the plunger 26 within the barrel 12, and in the position shown in FIG. 1, the piston separates the inside of the barrel into two isolated compartments 34 and 36, each of which contains a different substance to be stored apart from the other until immediately prior to injection, when the substances, typically a liquid and a powder, are mixed together.
  • a second substance to be stored within syringe 10 is then poured through the discharge end 13 of the barrel 12 and into chamber 34.
  • Discharge end assembly 14 is then coupled to the discharge end 13 of syringe 10. This coupling is typically accomplished by ultrasonic bonding.
  • the plunger When the syringe is to be used, the plunger is retracted, thereby first unsealing the piston (see FIG. 2) and then retracting the piston rearwardly along the barrel.
  • the piston 30 As the piston 30 is retracted, the fluid in the rear chamber 36 is forced through the piston opening 50 thereby causing mixing together of the substances stored in the two chambers.
  • the two former chambers now merge into a single chamber.
  • the flanges 74 on the plunger portion are forced into the piston opening segment 52, thereby ensuring the presence of open channels for fluid flow between the piston and the plunger.
  • the piston 30 is drawn all the way back to the stopper 22 (see FIG.
  • the plunger is advanced, thereby advancing both the stopper and the piston to eject the mixture of the two substances contained in the syringe through the needle and into the subject.
  • any rearward movement of the plunger also retracts the stopper. This creates a negative pressure within the barrel, whereby blood can be positively drawn into the barrel as a test to determine if the needle had been properly inserted into a vein of the subject being injected.
  • a possible misuse of syringes occurs when the user does not retract the piston into a full surface and locked contact with the stopper 22.
  • the problem caused by this is that some of the original liquid within the chamber 36 remains in the space between the piston and the stopper, hence is not forced through the piston and into contact with the powder. Incomplete mixing thus occurs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Une seringue hypodermique (10) comporte un cylindre (12), un plongeur (26) s'étendant dans le cylindre à travers un embout (22), et un piston (30) monté sur le plongeur à l'intérieur du cylindre. Le piston divise sélectivement le cylindre en deux compartiments (34 et 36) permettant le stockage de substances distinctes, le piston présentant une ouverture traversante (54) qui est soit fermée soit ouverte par le plongeur en fonction de la position de ce dernier par rapport au piston. Le plongeur comporte deux butées (66 et 77) permettant de commander le mouvement du piston par rapport au et avec le plongeur, ainsi qu'une troisième butée (76) destinée à entraver de manière libérable le mouvement du piston par rapport au plongeur. Ce dernier se verrouille mécaniquement à l'embout arrière pour provoquer le mouvement de l'embout avec le plongeur lors de l'utilisation de la seringue. Dans un mode de réalisation, la butée (77) au niveau de l'extrémité avant du plongeur est pointue de manière à faciliter l'assemblage du piston sur le plongeur.
PCT/US1988/001801 1987-06-04 1988-05-27 Seringue hypodermique Ceased WO1988009679A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5805887A 1987-06-04 1987-06-04
US058,058 1987-06-04

Publications (1)

Publication Number Publication Date
WO1988009679A1 true WO1988009679A1 (fr) 1988-12-15

Family

ID=22014396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/001801 Ceased WO1988009679A1 (fr) 1987-06-04 1988-05-27 Seringue hypodermique

Country Status (1)

Country Link
WO (1) WO1988009679A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226882A (en) * 1990-09-24 1993-07-13 Medi Pluc Tec, Medizinisch-Technische Handels-Gesellschaft Mbh Single-use syringe with non-retractable piston
ES2109891A1 (es) * 1995-07-17 1998-01-16 Szapiro Melamed Jaime Luis Jeringa desechable con dos camaras de volumen variable.
WO1999037344A1 (fr) * 1998-01-22 1999-07-29 Alcon Laboratories, Inc. Dispositif de retenue pour canule de seringue
EP1047627A4 (fr) * 1997-10-20 2002-03-06 Prc Desoto Int Inc Seringue distributrice manuelle en plusieurs parties
US6960195B2 (en) * 2000-07-28 2005-11-01 Jochen Heinz Metering receptacle
WO2008150208A1 (fr) * 2007-06-08 2008-12-11 Jan Svensson Dispositif pour la distribution d'une substance et instrument de remplissage pour un tel dispositif
US7601140B2 (en) 2004-06-25 2009-10-13 Alcon, Inc. Syringe pressure applicator
EP2231232A4 (fr) * 2008-01-17 2015-07-29 Becton Dickinson Co Soupape de mélange de substances
US9850058B2 (en) 2015-09-11 2017-12-26 New Product Development Concepts Llc Telescoping syringe with one-way valve
EP4406569A3 (fr) * 2016-04-08 2025-01-29 Allergan, Inc. Dispositif d'aspiration et d'injection

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076456A (en) * 1960-03-07 1963-02-05 Elsie B Hunt Hypodermic syringe
FR2091684A5 (en) * 1970-05-16 1972-01-14 Hampel Heinz Disposable syringe - with multicompartment cylinder - for injections and blood sample collection
DE2329390A1 (de) * 1972-06-09 1974-01-03 Colin Albert Murdoch Injektionsspritze
DE1791293A1 (de) * 1967-11-25 1975-12-18 Wimmer Pharma Gummi Gmbh Zweikammer-spritzampulle
US3957051A (en) * 1974-09-13 1976-05-18 Medical Development Corporation Pump-type syringe having double-acting piston construction
EP0037920A1 (fr) * 1980-04-10 1981-10-21 Intermedicat GmbH Seringue

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076456A (en) * 1960-03-07 1963-02-05 Elsie B Hunt Hypodermic syringe
DE1791293A1 (de) * 1967-11-25 1975-12-18 Wimmer Pharma Gummi Gmbh Zweikammer-spritzampulle
FR2091684A5 (en) * 1970-05-16 1972-01-14 Hampel Heinz Disposable syringe - with multicompartment cylinder - for injections and blood sample collection
DE2329390A1 (de) * 1972-06-09 1974-01-03 Colin Albert Murdoch Injektionsspritze
US3957051A (en) * 1974-09-13 1976-05-18 Medical Development Corporation Pump-type syringe having double-acting piston construction
EP0037920A1 (fr) * 1980-04-10 1981-10-21 Intermedicat GmbH Seringue

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226882A (en) * 1990-09-24 1993-07-13 Medi Pluc Tec, Medizinisch-Technische Handels-Gesellschaft Mbh Single-use syringe with non-retractable piston
ES2109891A1 (es) * 1995-07-17 1998-01-16 Szapiro Melamed Jaime Luis Jeringa desechable con dos camaras de volumen variable.
EP1047627A4 (fr) * 1997-10-20 2002-03-06 Prc Desoto Int Inc Seringue distributrice manuelle en plusieurs parties
US6488651B1 (en) 1997-10-20 2002-12-03 Prc-Desoto International, Inc. Multiple part manual dispensing syringe
WO1999037344A1 (fr) * 1998-01-22 1999-07-29 Alcon Laboratories, Inc. Dispositif de retenue pour canule de seringue
US6960195B2 (en) * 2000-07-28 2005-11-01 Jochen Heinz Metering receptacle
US7601140B2 (en) 2004-06-25 2009-10-13 Alcon, Inc. Syringe pressure applicator
WO2008150208A1 (fr) * 2007-06-08 2008-12-11 Jan Svensson Dispositif pour la distribution d'une substance et instrument de remplissage pour un tel dispositif
EP2231232A4 (fr) * 2008-01-17 2015-07-29 Becton Dickinson Co Soupape de mélange de substances
US9850058B2 (en) 2015-09-11 2017-12-26 New Product Development Concepts Llc Telescoping syringe with one-way valve
EP4406569A3 (fr) * 2016-04-08 2025-01-29 Allergan, Inc. Dispositif d'aspiration et d'injection

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