WO2001021236A1 - Seringue auto-destructible - Google Patents

Seringue auto-destructible Download PDF

Info

Publication number
WO2001021236A1
WO2001021236A1 PCT/CA2000/001104 CA0001104W WO0121236A1 WO 2001021236 A1 WO2001021236 A1 WO 2001021236A1 CA 0001104 W CA0001104 W CA 0001104W WO 0121236 A1 WO0121236 A1 WO 0121236A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
syringe
barrel
plunger
auto
Prior art date
Application number
PCT/CA2000/001104
Other languages
English (en)
Inventor
Douglas C. V. Campbell
Original Assignee
Campbell Douglas C V
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 Campbell Douglas C V filed Critical Campbell Douglas C V
Priority to AU73998/00A priority Critical patent/AU7399800A/en
Publication of WO2001021236A1 publication Critical patent/WO2001021236A1/fr

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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M2005/5006—Having means for destroying the syringe barrel, e.g. by cutting or piercing

Definitions

  • the invention relates to disposable, auto-destruct syringes which are rendered non-
  • a principal function of syringes is in conjunction with hypodermic needles for the
  • hypodermic syringes for example, the sharing or reuse of hypodermic syringes.
  • hypodermic syringes has become a major problem in third-
  • a housing or recess for a small knife which is forced radially outwardly by a
  • the knife has a rearward rounded edge and a forward cutting edge.
  • a protection strip is inserted
  • the syringe includes a barrel, a piston,
  • the knives are mounted on
  • knives are oriented to be opposite preselected areas of reduced thickness in the barrel wall.
  • the reduced wall thickness permits penetration of the knives and cutting of the barrel wall
  • the syringe is initially supplied with the plunger in a first position
  • the plunger includes a pair of opposing, rearwardly
  • the plunger for example for a second aspiration of the syringe, forces the cutter arms
  • the cutter arms may not be able to cut or
  • the syringe be manufactured from relatively economical materials such as plastics.
  • knives may lead to failure of the knives part way during the injection stroke, leaving a
  • destruct syringe of this general type is achieved by a mechanism for
  • barrel wall and the piston for example by permanently deforming the barrel wall, which
  • the auto-destruct mechanism includes a piston provided
  • the deforming means is preferably
  • deforming means extends beyond the outside diameter of the piston, to cause deformation
  • the deforming means is a cutter, at least a part of
  • the invention provides an auto-destruct mechanism for a syringe having
  • a syringe barrel for holding fluid and having an open rear end and a closed front end with a
  • the mechanism includes a piston
  • a plunger having a
  • connecting means for interlocking the piston with the plunger to permit axial movement of the piston in the barrel by operation of the plunger;
  • the connecting means permitting a preselected amount of axial movement of the plunger
  • deforming means for permanently deforming the barrel wall to break the seal between the
  • the deforming means being pivotally mounted in the piston for
  • deforming means is prevented, and an operating position wherein the deforming means
  • One feature of the present invention is that the rotation movement of the deforming
  • the direction of rotation of the deforming means is preferably selected such that a barrel
  • the piston and plunger are shaped and
  • the piston has a radial recess in its outer
  • deforming means is inserted into the radial recess to extend into the deforming means
  • FIGURE 1 is an axial cross-section through the preferred embodiment of the auto-
  • FIGURE 2 is an axial cross-section through the auto-destruct mechanism shown in
  • FIGURE 1 but during the beginning of the intake stroke with the cutter in the cocked
  • FIGURE 3 is an axial cross-section through the auto-destruct mechanism shown in
  • FIGURE 1 but during the first aspiration stroke, with the cutter in the cocked position;
  • FIGURE 4 is an axial cross-section through the auto-destruct mechanism shown in
  • FIGURE 1 during the exhaust stroke, with the cutter in the at rest position
  • FIGURE 5 is an axial cross-section through the auto-destruct mechanism shown in
  • FIGURE 1 illustrating the primed blade of the cutter at the beginning of the second
  • FIGURE 6 is a perspective view of the auto-destruct mechanism shown in FIGURE
  • FIGURE 7 illustrates an axial cross-section through the plunger
  • FIGURE 8 illustrates an enlarged side view of the front end of the plunger shown in
  • FIGURE 7
  • FIGURE 9 is a perspective view from above of the plunger front end shown in
  • FIGURE 8
  • FIGURE 10 is a top plan view of the plunger front end shown in FIGURE 8.
  • FIGURE 11 is a side elevational view of the cutter;
  • FIGURE 12 is a top plan view of the cutter;
  • FIGURE 13 is a top plan view of the piston showing the cutter receiving recess.
  • the syringe consists of a syringe body 10
  • the auto-destruct mechanism 50 includes the piston 20, a plunger
  • the syringe body 10 includes a cylindrical barrel 12 which has an open rear end 7 and
  • the front end 1 of the barrel is provided with an integral needle
  • the front end 1 further has a fluid passage
  • An auto-destruct mechanism 50 is shown in detail in Figures 1 through 4. As can be
  • the piston 20 includes a seal or stopper 4 which is made
  • elastomeric seal material such as butyl rubber used in conventional syringe piston seals.
  • the seal 4 is preferably connected with the piston 20 by way of an interference fit.
  • seal 4 at least in a preferred embodiment, is slightly larger than the inner diameter of the
  • a circumferential groove 9 is provided in the outer surface of the seal.
  • the seal 4 to improve the sealing characteristics thereof.
  • the seal 4 can have a
  • the piston 20 also contains
  • the piston 20 and plunger 40 are constructed such that the
  • plunger 40 can move a defined axial distance A (see Figure 3) relative to the piston 20 in
  • the piston 20 in the preferred embodiment is sleeve-shaped and
  • the plunger front end 9 fits thereinto. In the region of overlap between the plunger and the plunger
  • the plunger is divided into two portions, the plunger tongue 41, and the interlocking
  • portion 43 which functions as the connecting means (see Figure 8) .
  • the plunger tongue 41 has a priming opening 47 for
  • plunger tongue 41 has a solid front end 44, the length of which is selected such that it
  • a cutter opening 48 is provided in the interlocking portion 43 for receiving the
  • the sleeve 20 includes a cutter receiving recess 6 into which the cutter 60 is inserted. It is readily apparent from the drawings that the rearward
  • plunger 40 is not interconnected with piston 20 in this embodiment. However, a
  • piston 20 can be provided at
  • the cutter opening 48 is offset axially forwardly
  • the cutter 60 includes a generally cylindrically
  • the cutter 60 also includes a pair of lateral
  • detents 65 which protrude laterally from the cutter body 63 at a top edge thereof.
  • cutter 60 sits in the cutter recess 6 and extends with its lever portion 62 into the cutter
  • the cutter recess 6 includes a pair of laterally
  • detent receiving cutouts 67 in opposite side walls of the recess for receiving detents 65
  • the mechanism 50 is simply assembled by overlapping the plunger 40 and the
  • Syringes including the mechanism in accordance with the
  • the user pulls back the plunger 40 thereby retracting the piston 20.
  • the plunger 40 moves forward relative to the piston 20 until
  • tongue 41 snaps back from the deflected condition (see Figure 3) into its straight
  • lever portion 62 i.e. the distance of the point of engagement between the lever portion and

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

L'invention concerne une seringue pourvue d'une structure déformante (50) destinée à déformer de façon permanente la paroi (12) du cylindre et rompre le joint (30) d'étanchéité entre le piston (20) et la paroi du cylindre. Cette structure déformante est montée pivotante dans le piston, de manière à passer par rotation d'une position de repos où la structure déformante ne déforme pas la paroi du cylindre à une position d'activation où le dispositif de déformation vient au contact de la paroi du cylindre de manière à déformer cette dernière de façon permanente, et vice-versa. Le piston est équipé d'un actionneur destiné à faire tourner la structure déformante pour la faire passer en position de contact avec la paroi du corps de pompe lorsque le piston revient en arrière, à la suite d'une injection complète ou partielle. Ce mécanisme fait de la seringue une seringue à usage unique, que l'on ne peut pas ré-utiliser après la première injection, ce qui empêche tout re-remplissage éventuel de ladite seringue.
PCT/CA2000/001104 1999-09-22 2000-09-21 Seringue auto-destructible WO2001021236A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU73998/00A AU7399800A (en) 1999-09-22 2000-09-21 Auto-destruct syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,282,974 1999-09-22
CA 2282974 CA2282974A1 (fr) 1999-09-22 1999-09-22 Seringue auto-destructrice

Publications (1)

Publication Number Publication Date
WO2001021236A1 true WO2001021236A1 (fr) 2001-03-29

Family

ID=4164176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2000/001104 WO2001021236A1 (fr) 1999-09-22 2000-09-21 Seringue auto-destructible

Country Status (3)

Country Link
AU (1) AU7399800A (fr)
CA (1) CA2282974A1 (fr)
WO (1) WO2001021236A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034673A1 (de) * 1990-09-27 1992-04-02 Bader & Partner Medizintechnik Spritze, insbesondere fuer den medizinischen gebrauch
EP0494289A1 (fr) * 1990-07-25 1992-07-15 SERRANO GONZALEZ, Antonio Seringue non reutilisable
US5257976A (en) * 1989-01-10 1993-11-02 Fenet Emeric G Single use disposable syringe
US5290235A (en) * 1990-02-15 1994-03-01 Alan H. Polyblank Non-reusable syringe
WO1994028955A2 (fr) * 1993-06-03 1994-12-22 Daniel Delannoy Seringue a usage medical unique autodestructive
WO1997026933A1 (fr) * 1996-01-26 1997-07-31 Campbell Douglas C V Seringue jetable autodestructible

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257976A (en) * 1989-01-10 1993-11-02 Fenet Emeric G Single use disposable syringe
US5290235A (en) * 1990-02-15 1994-03-01 Alan H. Polyblank Non-reusable syringe
EP0494289A1 (fr) * 1990-07-25 1992-07-15 SERRANO GONZALEZ, Antonio Seringue non reutilisable
DE4034673A1 (de) * 1990-09-27 1992-04-02 Bader & Partner Medizintechnik Spritze, insbesondere fuer den medizinischen gebrauch
WO1994028955A2 (fr) * 1993-06-03 1994-12-22 Daniel Delannoy Seringue a usage medical unique autodestructive
WO1997026933A1 (fr) * 1996-01-26 1997-07-31 Campbell Douglas C V Seringue jetable autodestructible

Also Published As

Publication number Publication date
CA2282974A1 (fr) 2001-03-22
AU7399800A (en) 2001-04-24

Similar Documents

Publication Publication Date Title
EP1928523B1 (fr) Dispositif d auto-injection dote d un embout de protection d aiguille comportant des douilles exterieure et interieure
EP2076299B1 (fr) Dispositif d'injection automatique équipé de moyens de temporisation
EP1056495B1 (fr) Seringue a aiguille retractable
EP2522382B1 (fr) Dispositif d'injection
EP1755709B2 (fr) Dispositif d'injection
CA1317178C (fr) Dispositif de purete pour aiguille de seringe a injection
JP4917538B2 (ja) 格納可能な針を備えた使い捨て空気圧式安全注射器
JP4236843B2 (ja) ジェット式注射装置のための係止機構
US6120479A (en) Auto-destruct disposable syringe
KR20060129024A (ko) 주사 장치
MXPA01006743A (es) Jeringa hipodermica con aguja selectivamente retractil.
JP2008511349A5 (fr)
MXPA01006619A (es) Jeringa hipodermica con una aguja selectivamente retractil.
AU2001240916A1 (en) Hypodermic syringe
WO2001021236A1 (fr) Seringue auto-destructible
CA2168201A1 (fr) Seringue jetable, auto-destructible
GB2617389A (en) Injection device and method of preparing an injection device
WO1983000438A1 (fr) Seringues auto-destructibles
RU2781570C1 (ru) Автоинъектор с кожухом иглы
JP2024501680A (ja) 薬剤送達デバイス

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP