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WO1993010841A1 - Seringue a usage unique - Google Patents

Seringue a usage unique Download PDF

Info

Publication number
WO1993010841A1
WO1993010841A1 PCT/AT1992/000161 AT9200161W WO9310841A1 WO 1993010841 A1 WO1993010841 A1 WO 1993010841A1 AT 9200161 W AT9200161 W AT 9200161W WO 9310841 A1 WO9310841 A1 WO 9310841A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection device
injection
cage
piston
interior
Prior art date
Application number
PCT/AT1992/000161
Other languages
German (de)
English (en)
Inventor
Philippe Meyer
Ewald Pickhard
Reiner Vehrenkamp
Original Assignee
Med-Plastic Ag
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 Med-Plastic Ag filed Critical Med-Plastic Ag
Priority to EP92924478A priority Critical patent/EP0615456A1/fr
Publication of WO1993010841A1 publication Critical patent/WO1993010841A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M2005/3128Incorporating one-way valves, e.g. pressure-relief or non-return valves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/504Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the fluid passageway
    • A61M2005/5046Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the fluid passageway automatically, e.g. plug actuated by the piston head, one-way valve
    • A61M2005/5053Valve or plug actuated by fluid flow or fluid pressure allowing initial filling of the syringe

Definitions

  • a rapid adaptation of the cross channels to the delivery of different injection media can be achieved by the training according to claim 14.
  • the configuration according to claim 35 further enables the pressure of the injection medium exerted on the truncated cone leads to a further narrowing of the opening through the truncated cone, so that refilling of the injection device after a single use is reliably prevented even at high pressures
  • FIG. 1 shows an injection device designed according to the invention in a side view and a simplified, schematic illustration
  • a plurality of projections 38 projecting over an inner surface 37. These projections 38 project in the direction of the longitudinal axis 26 over the surface 39 arranged in a diameter 39 37 before.
  • a height 40 of these extensions 38 is dimensioned such that a distance between the extensions 38 lying opposite in the radial direction is greater than the diameter 24 of the ball 22.
  • the ball 22 is also approximately centered in the receiving space 19, and At the same time, the flow channels 41 formed between the extensions 38 allow the injection medium 33 to pass properly past the ball 22.
  • the injection medium 33 then comes on due to the negative pressure generated by the piston 4 the piston 4 facing the rear of the Spe ⁇ organs 23 or the ball 22 through the 12 or the piercing opening 11 is sucked into the interior 3 of the syringe barrel 2

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

Seringue à usage unique (1) comprenant un cylindre (2), une aiguille (6) et un piston (4) coulissant logé dans l'espace intérieur du cylindre (2). Ce piston est relié cinématiquement à une tige (5) partant du piston dans le sens opposé à l'aiguille (6). Dans l'espace intérieur (3) du cylindre (2), un système de blocage (7) est disposé entre le piston (4) et l'aiguille (6) avec un organe de blocage (23), retenu dans une pièce de boîtier cylindrique par le biais d'un élément de retenue (17) de préférence élastiquement déformable, dans une chambre de logement (18). L'élément de retenue (17) est logé à une certaine distance (73) d'un côté frontal d'un canal d'admission (42), qui lui est opposé. Cette distance (73) est supérieure à une longueur parallèle au sens longitudinal de la seringue (1) ou à un diamètre (24) de l'organe de blocage (23). Le boîtier de logement (8) cylindrique est divisé par l'élément de retenue (17) en une chambre de logement (18) et un espace de logement (19) pour l'organe de blocage (23). La chambre de logement (18) opposée au piston (4) est fermée par une paroi frontale (9) du boîtier de logement (8) dont le prolongement cylindrique (10) s'appuie par une surface externe (56) sur la surface interne (57) du cylindre (2). Le logement (14) est disposé dans le creux (13) du boîtier de logement. L'espace de logement (19) est conçu de manière à être ouvert dans le sens de l'aiguille (6) ou du canal d'admission (42) menant à l'aiguille (6). L'organe de blocage (23) est logé entre l'élément de retenue (17) et la paroi frontale (9) du boîtier de logement (8).
PCT/AT1992/000161 1991-12-05 1992-12-07 Seringue a usage unique WO1993010841A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92924478A EP0615456A1 (fr) 1991-12-05 1992-12-07 Seringue a usage unique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH358791 1991-12-05
CH3587/91-0 1991-12-05

Publications (1)

Publication Number Publication Date
WO1993010841A1 true WO1993010841A1 (fr) 1993-06-10

Family

ID=4259211

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1992/000161 WO1993010841A1 (fr) 1991-12-05 1992-12-07 Seringue a usage unique

Country Status (3)

Country Link
EP (1) EP0615456A1 (fr)
AU (1) AU3075992A (fr)
WO (1) WO1993010841A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2632190A1 (fr) * 1988-06-07 1989-12-08 Michaud Jean Dispositif interdisant la reutilisation d'une seringue et seringue incorporant le dispositif
US5000735A (en) * 1989-01-05 1991-03-19 The Regents Of The Univ. Of California Single use syringe
WO1992004064A1 (fr) * 1990-08-29 1992-03-19 Butler John H A Clapet pour seringue

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2632190A1 (fr) * 1988-06-07 1989-12-08 Michaud Jean Dispositif interdisant la reutilisation d'une seringue et seringue incorporant le dispositif
US5000735A (en) * 1989-01-05 1991-03-19 The Regents Of The Univ. Of California Single use syringe
WO1992004064A1 (fr) * 1990-08-29 1992-03-19 Butler John H A Clapet pour seringue

Also Published As

Publication number Publication date
AU3075992A (en) 1993-06-28
EP0615456A1 (fr) 1994-09-21

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