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WO1993017735A1 - Appareil d'injection a usage unique comprenant un dispositif de protection de l'aiguille retractable - Google Patents

Appareil d'injection a usage unique comprenant un dispositif de protection de l'aiguille retractable Download PDF

Info

Publication number
WO1993017735A1
WO1993017735A1 PCT/US1993/002080 US9302080W WO9317735A1 WO 1993017735 A1 WO1993017735 A1 WO 1993017735A1 US 9302080 W US9302080 W US 9302080W WO 9317735 A1 WO9317735 A1 WO 9317735A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
cylindrical
retractable sleeve
longitudinal slats
bore
Prior art date
Application number
PCT/US1993/002080
Other languages
English (en)
Inventor
Thomas C. Kuracina
Original Assignee
Injectimed, 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 Injectimed, Inc. filed Critical Injectimed, Inc.
Priority to AU37963/93A priority Critical patent/AU3796393A/en
Publication of WO1993017735A1 publication Critical patent/WO1993017735A1/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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • This invention relates to medical devices for injecting living bodies and, more particularly, to safety features incorporated therewith.
  • a disposable syringe having a needle protected with a retractable sleeve comprising, a cylindrical body having an open end and a closed end; a needle having a longitudinal bore therethrough from an inner end to an outer end; a plunger slidably contained in the cylindrical body through the open end; a bore through the closed end carrying the inner end of the needle; and, a retractable sleeve disposed over the needle wherein the retractable sleeve comprises a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the closed end, and an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats
  • a typical prior art hypodermic syringe 10 includes a barrel 12 having a moving plunger 14 therein.
  • a needle 16 having a sharp beveled tip 18 extends from the end opposite the end of the barrel 12 into which the plunger 14 is inserted.
  • the needle 16 is removably attached over a small cylindrical projection 20 on the end of the barrel 12.
  • the needle 16 is covered by a removeable cap 22 for safety purposes.
  • the problem to be solved and avoided is the accidental sticking of users of the syringe 10 by the tip 18 after use where the tip 18 may carry body fluids containing agents of hepatitis B, AIDS, and the like.
  • Accidental needle stick is a very common problem in the health care industry and besides the risk of serious illness or even death as a result thereof, the insurance industry spends over a billion dollars a year in the testing of individuals who have been subjected to post-use needle stick.
  • the 1979 patent of Alvarez proposed a retractable plastic protective sleeve 24 over the needle 16 as depicted in Figures 3 and 4.
  • the Alvarez sleeve 24 has an inner hub 26 which fits around the base 28 of the needle 16 and an outer hub 30 through which the tip 18 of the needle 16 passes.
  • the inner and outer hubs 26, 30 are connected by curved slats 32.
  • a protective sleeve representative of the Alvarez and Kuracina type sleeves is depicted in its typical prior art form as an add-on device to a hypodermic syringe in Figure 5.
  • the foregoing object has been achieved in a medical device having a needle extending from a body portion thereof, by the improvement of the present invention for protecting the needle with a retractable sleeve comprising, a bore in the body portion carrying an inner end of the needle; a plurality of longitudinal slats concentrically disposed about the needle parallel thereto and carried on inner ends by the body portion; and, an outer end piece having a bore therethrough connecting outer ends of the plurality of longitudinal slats, the bore having the needle passing therethrough whereby the outer end piece can be slid back along the needle from an extended position covering an outer tip of the needle to bow the plurality of longitudinal slats outwardly and expose the outer tip as the outer end piece is moved to a retracted position adjacent the * body portion.
  • the body portion, the plurality of longitudinal slats, and the outer end piece are of unitary construction.
  • the body portion has an outward- extending hub concentrically surrounding the bore in the body portion carrying the inner end of the needle; the plurality of longitudinal slats have the inner ends carried by a cylindrical collar; the plurality of longitudinal slats and the cylindrical collar are of unitary construction; the cylindrical collar has a central bore therethrough having a diameter substantially identical to an outer diameter of the cylindrical hub of the body portion; and, the cylindrical collar is permanently attached to the hub.
  • Figure 1 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap in place.
  • Figure 2 is a simplified drawing of a prior art hypodermic syringe with the needle and protective cap removed.
  • Figure 3 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its extended position.
  • Figure 4 is a simplified, partially cutaway drawing of a prior art protective sleeve on a hypodermic syringe in its retracted position.
  • Figure 5 is a simplified, partially cutaway drawing of a prior art approach to adding a protective sleeve to a hypodermic syringe as an add-on device.
  • Figure 6 is a simplified, partially cutaway drawing of one embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
  • Figure 7 is a simplified, partially cutaway drawing of another embodiment of the present invention for adding a protective sleeve to a hypodermic syringe as an integral part thereof.
  • Figure 6 shows a first embodiment of the present invention as comprising a unitary syringe 10' comprising a barrel 12 and plunger 14 with a cylindrical projection 34 on the end of the barrel 12 opposite the plunger 14.
  • the projection 34 carries a needle 16 in a central bore 36 thereof.
  • the projection 34 also carries the inner ends of a plurality of slats 38 of a Kuracina type protective sleeve 40.
  • the slats 38 are concentrically disposed about the needle 16 and terminate at their outer ends in an end piece 42 having a preferred transparent bell end for viewing the tip 18 of the needle 16.
  • a locking collar 43 and bias spring 44 are disposed over the slats 38 in the usual manner.
  • a protective hard cover 46 is carried by a peripheral cylindrical shoulder area 48 provided in the projection 34 for the purpose.
  • the projection 34' has a small diameter central portion 50 containing the bore 36 with the needle 16 therein and a cylindrical collar 52 is permanently attached over the central portion with plastic glue,- heat/sonic welding, or the like.
  • the slats 38 and end piece 42 are formed as part of and carried by the collar 52.
  • the outer periphery of the collar forms the peripheral cylindrical shoulder area 48 which supports the hard cover 46.

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 concerne une seringue à usage unique (10') comprenant une aiguille (16) protégée par un manchon rétractable (40) qui se compose d'un corps cylindrique avec une extrémité ouverte et l'autre fermée et d'une aiguille (16) creuse (36) de l'extrémité intérieure à l'extrémité extérieure. Ledit manchon rétractable (40) comprend une pluralité de rainures longitudinales (38) disposées de manière concentrique autour de et parallèlement à l'aiguille (16), sur l'extrémité intérieure de ladite aiguille (16). Il comprend également une extrémité extérieure creuse raccordant les extrémités extérieures de la pluralité de rainures longitudinales (38). L'aiguille (16) passe à l'intérieur du manchon dont l'extrémité extérieure peut être remontée le long de l'aiguille, de la position sortie couvrant la pointe extérieure (18) de l'aiguille (16) afin de plier vers l'extérieur la pluralité de rainures longitudinales (38) et dégager la pointe extérieure (18) alors que l'extrémité extérieure est mise en position de retrait contre le corps de la seringue. Dans un mode préféré de réalisation, un ressort de blocage rétractile (44) et une bague (43) sont prévus au-dessus desdites rainures.
PCT/US1993/002080 1992-03-10 1993-03-08 Appareil d'injection a usage unique comprenant un dispositif de protection de l'aiguille retractable WO1993017735A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37963/93A AU3796393A (en) 1992-03-10 1993-03-08 Unitary injection apparatus incorporating retractable sleeve needle protection apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85046492A 1992-03-10 1992-03-10
US850,464 1992-03-10

Publications (1)

Publication Number Publication Date
WO1993017735A1 true WO1993017735A1 (fr) 1993-09-16

Family

ID=25308184

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/002080 WO1993017735A1 (fr) 1992-03-10 1993-03-08 Appareil d'injection a usage unique comprenant un dispositif de protection de l'aiguille retractable

Country Status (1)

Country Link
WO (1) WO1993017735A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005876A1 (fr) * 1998-12-05 2000-06-07 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Dispositif de protection des aiguilles d'injection pour seringues, ampoules et similaires
WO2010100240A1 (fr) * 2009-03-05 2010-09-10 Sanofi-Aventis Deutschland Gmbh Ensemble aiguille
US8821453B2 (en) 2011-07-25 2014-09-02 Safety Syringes, Inc. Folding panel needle guard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695274A (en) * 1986-01-31 1987-09-22 Fox Richard L Protected hypodermic needle
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes
US4778453A (en) * 1986-04-07 1988-10-18 Icu Medical, Inc. Medical device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695274A (en) * 1986-01-31 1987-09-22 Fox Richard L Protected hypodermic needle
US4778453A (en) * 1986-04-07 1988-10-18 Icu Medical, Inc. Medical device
GB2202747A (en) * 1987-01-17 1988-10-05 Dr William Ducat Syringes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1005876A1 (fr) * 1998-12-05 2000-06-07 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Dispositif de protection des aiguilles d'injection pour seringues, ampoules et similaires
WO2010100240A1 (fr) * 2009-03-05 2010-09-10 Sanofi-Aventis Deutschland Gmbh Ensemble aiguille
JP2012519508A (ja) * 2009-03-05 2012-08-30 サノフィ−アベンティス・ドイチュラント・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング ニードルアセンブリ
US9216255B2 (en) 2009-03-05 2015-12-22 Sanofi-Aventis Deutschland Gmbh Needle assembly
US8821453B2 (en) 2011-07-25 2014-09-02 Safety Syringes, Inc. Folding panel needle guard
US9925341B2 (en) 2011-07-25 2018-03-27 Safety Syringes, Inc. Folding panel needle guard

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