WO1991003269A1 - Seringue de securite - Google Patents

Seringue de securite Download PDF

Info

Publication number
WO1991003269A1
WO1991003269A1 PCT/AU1990/000377 AU9000377W WO9103269A1 WO 1991003269 A1 WO1991003269 A1 WO 1991003269A1 AU 9000377 W AU9000377 W AU 9000377W WO 9103269 A1 WO9103269 A1 WO 9103269A1
Authority
WO
WIPO (PCT)
Prior art keywords
barrel
plunger
needle
syringe
end piece
Prior art date
Application number
PCT/AU1990/000377
Other languages
English (en)
Inventor
James Dunstone Townsend
Original Assignee
Townsend Controls Pty. Ltd.
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 Townsend Controls Pty. Ltd. filed Critical Townsend Controls Pty. Ltd.
Publication of WO1991003269A1 publication Critical patent/WO1991003269A1/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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • A61M5/3129—Syringe barrels
    • A61M2005/3132—Syringe barrels having flow passages for injection agents at the distal end of the barrel to bypass a sealing stopper after its displacement to this end due to internal pressure increase
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod
    • A61M2005/3242—Needle retraction by vacuum
    • 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

Definitions

  • This invention relates to syringes of a type useful as hyperdermic syringes.
  • Hitherto syringes have usually been of simple construction in which a piston is able to reciprocate within a cylinder.
  • the assembly is completed by mounting a needle appropriate to the purpose onto the distal end of the cylinder or barrel.
  • the construction has the advantage of ease of construction and cheapness, but it does little or nothing to protect the user or those in the vicinity of the user, or those involved in the removal of waste materials including used syringes and/or used needles from accidents in which non-intentional penetration of the skin of an unintended person occurs following use of the syringe or needle thus exposing such accidentally "pricked” persons to the risk of cross-infection or contamination with the AIDS virus.
  • Patent specification AU-A-14189/88 describes a single use hypodermic syringe whereby following the injection of injectate the needle can be allowed under a resilient pressure to be withdrawn into the cylinder of the syringe and the piston is prevented from further movement.
  • the mechanism for this action involves a series of cams, flexible levers and latches,.
  • the actual cylinder in which the piston slides is a tensioned elastic bladder which after the injecting stroke provides a resilient retraction pressure which can however be resisted by the operator simply not reducing pressure on the piston.
  • a syringe which includes a barrel, a piston operable in the barrel and needle support means adapted to support a hollow needle at an end of the barrel, the needle support means being separable from the barrel, means adapted to assist such release being effected by relative positioning of the piston to the barrel, resilient means adapted to effect a withdrawal pressure on the needle support means and any attached needle there with with respect to the barrel, and an inner piston within the piston and an inner chamber also within the piston and into which the inner piston with ensnared needle support means are adapted to be moved under the said resilient withdrawal pressure.
  • the invention is further characterised in that the resilient means are provided by means establishing a gaseous pressure differential between the inner chamber and an environment external to but within which the syringe is located, or alternatively the resilient means are a tensioned spring.
  • hypodermic syringes with their attached needles have to be used in all manner of ways and there is the continuing potential for accidental needle strike with a contaminated needle.
  • the advantage of the present proposal therefore is firstly that there can be designed an arrangement using this concept whereby with a minimal extra continuing pressure after full usage has been made of the syringe, the needle will be effectively withdrawn and rendered totally safe and further, the plunger will be in a completely depressed position so rendering the waste volume of the then disposal syringe somewhat less than might have to be the case if the plunger is withdrawn as a method of making it safe.
  • a first of these is that the inner piston is retained with respect to the plunger by positive means with respect to its forward and aft relative position.
  • the inner piston needs to first of all provide an effective seal with the plunger which provides an inner cylindrical shape but at the same time, the inner piston must be retained positively against quite high hydraulic pressures firstly to ensure that there is no accidental release of the piston during uptake of injectate and at the same time, the piston must be able to resist the strong hydraulic pressure during almost all of the stroke while the plunger is directed inwardly to force the injectate through the narrow hollow needle and of course into the patient.
  • the difficulty has been however to propose an arrangement by which, recalling that there must be positive securement of the inner piston with respect to the plunger, that there can be a totally reliable arrangement to effect a release at the completion of the injecting stroke and if possible such that such final release will not add significantly to pressure requirements for an operator.
  • the capture step that is an interlocking of the inner piston with a base to which the needle is attached also needs to be attached on a basis which is not dependent upon excessive pressures and in preference is also attachable simply by reason of relative positioning.
  • the needle is attached to the barrel and in preference, the needle is attached to a base which is separably secured to the barrel and is releasable once again by reason of a relative positioning of the plunger with respect to the barrel.
  • the first utilises a spring to retract the needle and the second uses a vacuum.
  • FIGURE 1 is a side cross section view showing the syringe prior to use
  • FIGURE 2 is a side cross section showing the plunger in a first position which is a position in which the plunger has been moved to a first capture position between the inner piston and the base,
  • FIGURE 3 is the same view as in Figure 2 with the plunger being moved slightly more forward so that the release tongue is being diverted by the base into a release position
  • FIGURE 4 is a cross-sectional view along the lines through 4 in Figure 3
  • FIGURE 5 is the same view as in Figures 2 and 3 with the plunger having been pushed further forward providing the effective release of the base which has been captured by the inner piston,
  • FIGURE 6 is the same cross-sectional view as in Figures 2, 3 and 5 subsequent to the release of the base showing the retractive effect of the spring pulling both the inner piston and the base with the attached needle into a encapsulated position within the plunger,
  • FIGURE 7 is a plan view of the reverse star washer used to assist in affecting a release of the base from a gripping position relative to the barrel, and finally
  • FIGURE 8 is an enlarged view of the forward section of the plunger
  • FIGURE 9 shows a cross sectional side view of a syringe according to the second prefered embodiment which will be described hereafter prior to use,
  • FIGURE 10 shows the syringe of Figure 9 in more detail just at the end of the injecting stroke
  • FIGURE 11 shows the syringe of Figure 9 just as the needle is about to be retracted into the plunger
  • FIGURE 12 shows the reverse star washer in plan view used to release the needle
  • FIGURE 13 shows the needle of the syringe of Figure 9 retracted into the plunger.
  • a barrel 1 which is generally of cylindrical shape providing an innermost cylinder within which a plunger 2 is shown which can be slidably operated.
  • an end 3 which provides an innermost frusto- conical shape at 4 into which a base 5 can be fitted with gripping force at the same time providing coincidence in the alignment of feed conduits 6 and within the base feed conduit 7.
  • plunger 2 Adapted to slidably move through the inner piston shape of the barrel 1 is plunger 2 which has at its end seals at 11 and an innermost abutting edge 12 adapted to engage the outer edge of a reverse star washer 13.
  • inner piston 14 Adapted to operate within the plunger 2 and to be slidably retainable along the length of the plunger is inner piston 14.
  • the inner piston 14 has seals 15 and includes around its forward perimeter respectively three release tongues as shown typically at 16 and offset by 60° from these three capture fingers 17.
  • this part 18 Around an outer edge the perimeter of this part 18 is a barb shape at 19 and the inner side of this dish shape at 20 is adapted to appropriately engage with the release tongue 16 so as to cause this to come into a release position relative to abutting face 20 on the plunger 2.
  • the rear end of the spring 22 is captured at 23 by thumb pressure member 24.
  • the device will work in the conventionally normal manner in so far that the inner piston 14 is captured and will provide an effective seal at the end of the plunger 2 so the plunger 2 can be used in the conventional way to withdraw fluid through the needle 8 and subsequently inject this.
  • the operator may continue the injection step by continued pressure on the pressure member 24 so that by reason of the innermost position of the plunger 2 and through this the inner piston 14, the inner piston is first brought to a position so that its capture finger 17 engages over the other side of the barb shape 19.
  • plunger 2 With continued depression, plunger 2 then reaches the stage where the release tongue 16 is pushed inwardly to a sufficient extent to release its interlocking with the abutting face 21 where upon the inner piston 14 is free to move and will do so under pressure of the helical spring 22 to the extent allowed by the capture finger 17 in relation to its engagement with the barb shape 19.
  • the inner piston is simply held in position by reason of the barb shape and the capture finger so that the final release exercise is to continue the pressure of the plunger which in turn then presses against the external edges of the reverse star washer 13 which pivots around its support point with the barrel 1 providing with significant mechanical advantage a release pressure for the base 5.
  • the syringe comprises a barrel 26 into which is a plunger 27.
  • the plunger 27 is slidably operable within the barrel 26 by means of pressure being applied to the thumb piece 28 whilst the barrel 26 is held relatively in place by use of the finger piece 29.
  • a base end 30 Inserted into the barrel 26 is a base end 30 which is held therein by a friction, that is the base end 30 and the barrel 26 form a friction fit.
  • Attached to the base end 30 is a hollow needle 31.
  • the base end 31 has side communicating ducts 32 and a central communicating duct 33.
  • the barrel 26 has side communicating ducts 34 which, prior to retraction of the needle, align with the communicating ducts 32.
  • a passage is formed though which a injectant can by drawn into the space 35 and then injected therefrom via the hollow needle 31.
  • An abutment is provided in the shape of the barrel at 36. Between the barrel 26 and the end piece 30 at 36 a reverse star washer 37 is placed.
  • sealing means 38 effecting a seal between the two so enabling and injectant to be drawn into and ejected from the space 35.
  • plunger 27 Within the plunger 27 is hollow and an inner piston 39 which is sealed by a second sealing means 40 to the inside of the plunger 27.
  • the inner piston extends only partly into the plunger 27, the rest of the cavity within the hollow plunger 27 is evacuated.
  • the inner piston 39 is characterised by being cup shaped with a base furthest from the needle 31 and tapered side walls. Attached to the inner piston 39 is the second sealing means 40 and a member 41 made of plastics material.
  • the member 41 is adapted to sit part way into the inner piston 39 and has a periphery adapted to sit upon the periphery of the plunger 39 and also on a recessed face 42 of the plunger 27.
  • the member 41 is adapted to prevent the retraction of the inner piston 39 under the influence of the vacuum within the evacuated hollow portion of the plunger 26.
  • a disk like member 43 which has a hole cut out of the central portion.
  • the end piece 30 has a protruding section 44 characterised by captivating means 45. Having described the parts of the syringe exhibiting the second prefered embodiment now the operation of the syringe will be described.
  • Figure 9 shows the syringe prior to use and ready to be filled with an injectant.
  • the capture finger can be rearranged to capture the inside of the dish shape of the base with the appropriate barb its shape being located there.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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 se rapporte à une seringue qui comprend un canon de seringue (1) et un plongeur (2) et dans laquelle, par l'application d'une pression continue sur le plongeur après la course d'injection, une unité composée d'une pièce terminale (5) et d'une aiguille en forme de canule fixée (8) est libérée du canon de la seringue (3) et est amenée à se retirer automatiquement et de façon irréversible dans le plongeur, de sorte que l'aiguille n'est jamais laissée à l'intérieur du canon de la seringue. Les organes de retrait peuvent comporter des ressorts (21) ou un système d'application d'une dépression. L'unité (5, 8) composée de l'aiguille est maintenue en place par une rondelle en étoile renversée (13).
PCT/AU1990/000377 1989-08-28 1990-08-28 Seringue de securite WO1991003269A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPJ600289 1989-08-28
AUPJ6002 1989-08-28
AUPK092290 1990-06-29
AUPK0922 1990-06-29

Publications (1)

Publication Number Publication Date
WO1991003269A1 true WO1991003269A1 (fr) 1991-03-21

Family

ID=25643743

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1990/000377 WO1991003269A1 (fr) 1989-08-28 1990-08-28 Seringue de securite

Country Status (1)

Country Link
WO (1) WO1991003269A1 (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505330A1 (fr) * 1991-03-18 1992-09-23 PROFARM S.p.A. Seringue autobloquante
WO1992018186A1 (fr) * 1991-04-17 1992-10-29 Louis Ryles Seringue
FR2675999A1 (fr) * 1991-04-30 1992-11-06 Ferras Jean Seringue de securite.
GB2256146A (en) * 1991-04-13 1992-12-02 Merwe Marius V D Syringe with disconnectable plunger incorporating needle detaching and housing means
US5318537A (en) * 1991-04-13 1994-06-07 Van Der Merwe Corporation Syringe
WO1995006490A1 (fr) * 1993-08-31 1995-03-09 Clemens Anton H Systeme de retraction d'aiguille
US5423756A (en) * 1991-04-13 1995-06-13 Van Der Merwe; Marius Syringe
AU660472B2 (en) * 1991-04-17 1995-06-29 Medisafe Instruments Pty Ltd A syringe
FR2727021A1 (fr) * 1994-11-17 1996-05-24 Chauve Jean Yves Seringue a usage unique comportant un systeme de neutralisation de l'aiguille par escamotage automatique en fin d'injection
US5531694A (en) * 1993-08-31 1996-07-02 Clemens; Anton H. Needle retraction system
ES2116917A1 (es) * 1996-06-07 1998-07-16 Calas Sanz Ramon Vicente Jeringuilla con aguja retractil uniuso.
WO2000018454A1 (fr) * 1998-09-25 2000-04-06 David William Parker Ameliorations apportees a des seringues hypodermiques
ES2147118A1 (es) * 1998-02-11 2000-08-16 Calas Sanz Ramon Vicente Jeringuilla desechable con aguja retractil.
WO2001072362A1 (fr) 2000-03-24 2001-10-04 David William Parker Seringue hypodermique
JP2004188199A (ja) * 2002-12-10 2004-07-08 Chugyoku Yo 安全注射器
EP1549365A2 (fr) * 2002-09-16 2005-07-06 Futura Medical Technologies, Inc. Seringue pourvue d'une aiguille retractable
EP1473052A3 (fr) * 2003-05-02 2006-12-06 Becton Dickinson and Company Dispositif médical à support détachable
US20110009873A1 (en) * 2009-03-12 2011-01-13 Stat Medical Devices, Inc. Iv infusion system device having retractable needle and method of making and using the same
CN102872505A (zh) * 2011-07-14 2013-01-16 沈挺 一种弹簧式安全注射器
WO2013067588A1 (fr) * 2011-11-09 2013-05-16 Unitract Syringe Pty Ltd Aiguille de seringue rétractable perfectionnée
US8915890B2 (en) 2009-07-30 2014-12-23 Becton, Dickinson And Company Medical device assembly
US8986249B2 (en) 2009-04-08 2015-03-24 Stat Medical Devices, Inc. Retractable needle assembly and syringe utilizing the same
WO2018106777A1 (fr) * 2016-12-07 2018-06-14 Henkel IP & Holding GmbH Seringue munie d'un ensemble piston
WO2021061978A1 (fr) * 2019-09-24 2021-04-01 Credence Medsystems, Inc. Système et procédé pour seringue de sécurité
WO2022038229A1 (fr) 2020-08-20 2022-02-24 Roncadelle Operations Srl Seringue avec mécanisme de rétraction d'aiguille amélioré

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989009075A1 (fr) * 1988-03-22 1989-10-05 Davsa Seventy-Fifth Pty. Ltd. Retracteur d'aiguille hypodermique
US4888002A (en) * 1988-08-30 1989-12-19 Braginetz Paul A Disposable shield medical syringe
EP0347742A1 (fr) * 1988-06-23 1989-12-27 Aldo Venturini Seringue de sécurité à usage unique
WO1990006146A1 (fr) * 1988-12-07 1990-06-14 Gaetano Nacci Seringue qui rend l'aiguille hypodermique automatiquement inoffensive apres son utilisation
WO1990007350A1 (fr) * 1989-01-04 1990-07-12 Mueller Odd Gerhard Seringue hypodermique jetable
WO1990007948A1 (fr) * 1989-01-19 1990-07-26 Jaime Caralt Batlle Seringue hypodermique jetable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989009075A1 (fr) * 1988-03-22 1989-10-05 Davsa Seventy-Fifth Pty. Ltd. Retracteur d'aiguille hypodermique
EP0347742A1 (fr) * 1988-06-23 1989-12-27 Aldo Venturini Seringue de sécurité à usage unique
US4888002A (en) * 1988-08-30 1989-12-19 Braginetz Paul A Disposable shield medical syringe
WO1990006146A1 (fr) * 1988-12-07 1990-06-14 Gaetano Nacci Seringue qui rend l'aiguille hypodermique automatiquement inoffensive apres son utilisation
WO1990007350A1 (fr) * 1989-01-04 1990-07-12 Mueller Odd Gerhard Seringue hypodermique jetable
WO1990007948A1 (fr) * 1989-01-19 1990-07-26 Jaime Caralt Batlle Seringue hypodermique jetable

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505330A1 (fr) * 1991-03-18 1992-09-23 PROFARM S.p.A. Seringue autobloquante
GB2256146B (en) * 1991-04-13 1995-02-22 Merwe Marius V D Syringe
US5423756A (en) * 1991-04-13 1995-06-13 Van Der Merwe; Marius Syringe
GB2256146A (en) * 1991-04-13 1992-12-02 Merwe Marius V D Syringe with disconnectable plunger incorporating needle detaching and housing means
US5318537A (en) * 1991-04-13 1994-06-07 Van Der Merwe Corporation Syringe
AU660472B2 (en) * 1991-04-17 1995-06-29 Medisafe Instruments Pty Ltd A syringe
US5658257A (en) * 1991-04-17 1997-08-19 Medical Plastics (Aust) Pty. Ltd. Syringe
WO1992018186A1 (fr) * 1991-04-17 1992-10-29 Louis Ryles Seringue
FR2675999A1 (fr) * 1991-04-30 1992-11-06 Ferras Jean Seringue de securite.
WO1995006490A1 (fr) * 1993-08-31 1995-03-09 Clemens Anton H Systeme de retraction d'aiguille
US5531694A (en) * 1993-08-31 1996-07-02 Clemens; Anton H. Needle retraction system
FR2727021A1 (fr) * 1994-11-17 1996-05-24 Chauve Jean Yves Seringue a usage unique comportant un systeme de neutralisation de l'aiguille par escamotage automatique en fin d'injection
WO1996027403A1 (fr) * 1995-03-06 1996-09-12 Clemens Anton H Dispositif de retraction d'une aiguille
ES2116917A1 (es) * 1996-06-07 1998-07-16 Calas Sanz Ramon Vicente Jeringuilla con aguja retractil uniuso.
ES2147118A1 (es) * 1998-02-11 2000-08-16 Calas Sanz Ramon Vicente Jeringuilla desechable con aguja retractil.
WO2000018454A1 (fr) * 1998-09-25 2000-04-06 David William Parker Ameliorations apportees a des seringues hypodermiques
GB2341804B (en) * 1998-09-25 2003-02-12 David William Parker Improvements in or relating to hypodermic syringes
US6706019B1 (en) 1998-09-25 2004-03-16 David W. Parker Hypodermic syringes
WO2001072362A1 (fr) 2000-03-24 2001-10-04 David William Parker Seringue hypodermique
EP1549365A2 (fr) * 2002-09-16 2005-07-06 Futura Medical Technologies, Inc. Seringue pourvue d'une aiguille retractable
EP1549365A4 (fr) * 2002-09-16 2006-08-23 Futura Medical Technologies Inc Seringue pourvue d'une aiguille retractable
CN100448491C (zh) * 2002-09-16 2009-01-07 未来医疗技术公司 具有伸缩式针头部件的注射器
US7494479B2 (en) 2002-09-16 2009-02-24 Medsolve Technologies, Inc. Syringe with retractable needle assembly
JP2004188199A (ja) * 2002-12-10 2004-07-08 Chugyoku Yo 安全注射器
EP1473052A3 (fr) * 2003-05-02 2006-12-06 Becton Dickinson and Company Dispositif médical à support détachable
US8951228B2 (en) * 2009-03-12 2015-02-10 Stat Medical Devices, Inc. IV infusion system device having retractable needle and method of making and using the same
US20110009873A1 (en) * 2009-03-12 2011-01-13 Stat Medical Devices, Inc. Iv infusion system device having retractable needle and method of making and using the same
US8986249B2 (en) 2009-04-08 2015-03-24 Stat Medical Devices, Inc. Retractable needle assembly and syringe utilizing the same
US11478589B2 (en) 2009-07-30 2022-10-25 Becton, Dickinson And Company Medical device assembly
US9789265B2 (en) 2009-07-30 2017-10-17 Becton, Dickinson And Company Medical device assembly
US8915890B2 (en) 2009-07-30 2014-12-23 Becton, Dickinson And Company Medical device assembly
US10426899B2 (en) 2009-07-30 2019-10-01 Becton, Dickinson And Company Medical device assembly
CN102872505A (zh) * 2011-07-14 2013-01-16 沈挺 一种弹簧式安全注射器
WO2013067588A1 (fr) * 2011-11-09 2013-05-16 Unitract Syringe Pty Ltd Aiguille de seringue rétractable perfectionnée
AU2012334816B2 (en) * 2011-11-09 2016-03-10 Unitract Syringe Pty Ltd Improved retractable syringe needle
US9604010B2 (en) 2011-11-09 2017-03-28 Unitract Syringe Pty Ltd Retractable syringe needle
WO2018106777A1 (fr) * 2016-12-07 2018-06-14 Henkel IP & Holding GmbH Seringue munie d'un ensemble piston
US10821470B2 (en) 2016-12-07 2020-11-03 Henkel IP & Holding GmbH Syringe with piston assembly
WO2021061978A1 (fr) * 2019-09-24 2021-04-01 Credence Medsystems, Inc. Système et procédé pour seringue de sécurité
CN114521147A (zh) * 2019-09-24 2022-05-20 科利登医疗系统公司 用于安全注射器的系统和方法
US11369754B2 (en) 2019-09-24 2022-06-28 Credence Medsystems, Inc. System and method for safety syringe
CN114521147B (zh) * 2019-09-24 2023-06-23 科利登医疗系统公司 用于安全注射器的系统和方法
WO2022038229A1 (fr) 2020-08-20 2022-02-24 Roncadelle Operations Srl Seringue avec mécanisme de rétraction d'aiguille amélioré

Similar Documents

Publication Publication Date Title
WO1991003269A1 (fr) Seringue de securite
EP1349590B1 (fr) Dispositif d'injection automatique
US6179812B1 (en) Retractable needle medical devices
US4994034A (en) Retractable needle hypodermic syringe system
JP4068192B2 (ja) 再使用不能な伸縮自在形安全注射器とその使用方法
EP0449907B1 (fr) Seringue a usage unique
US5562626A (en) Safety syringe
US4966593A (en) Disposable hypodermic syringe with retractable needle
US5188599A (en) Retractable needle system
US5211629A (en) Safety syringe
US5053010A (en) Safety syringe with retractable needle
US7044931B2 (en) Syringe with retractable needle assembly
AU2002222872A1 (en) Auto-injector
US5201719A (en) Disposable hypodermic needle and medication catridge
JPH11226125A (ja) 一回使用の安全注射器
WO1994013336A1 (fr) Seringue non reutilisable avec protection contre l'aiguille
CA2394351C (fr) Seringue a ensemble d'aiguille escamotable
GB2604584A (en) Injector apparatus facilitating automatic needle withdrawal
EP1793883B1 (fr) Seringue
EP4249017A1 (fr) Dispositif d'injection automatique
JP4874972B2 (ja) 注射針保護装置及びこれを具えた注射装置
EP0962230B1 (fr) Dispositif d'aiguille, en particulier aiguille hypodermique

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BB BG BR CA CH FI HU JP KP KR LK MC MG MW NO RO SD SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CM DE DK ES FR GA GB IT LU ML MR NL SE SN TD TG

NENP Non-entry into the national phase

Ref country code: CA