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WO1992021393A1 - Dispositif de securite pour seringue medicale - Google Patents

Dispositif de securite pour seringue medicale Download PDF

Info

Publication number
WO1992021393A1
WO1992021393A1 PCT/EP1992/001151 EP9201151W WO9221393A1 WO 1992021393 A1 WO1992021393 A1 WO 1992021393A1 EP 9201151 W EP9201151 W EP 9201151W WO 9221393 A1 WO9221393 A1 WO 9221393A1
Authority
WO
WIPO (PCT)
Prior art keywords
adaptor
needle
sleeve
syringe
outer diameter
Prior art date
Application number
PCT/EP1992/001151
Other languages
English (en)
Inventor
Arturo Moises Gotthelf
Elimelech Jeshurun
Original Assignee
Arturo Moises Gotthelf
Elimelech Jeshurun
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
Priority claimed from IL98268A external-priority patent/IL98268A0/xx
Priority claimed from IL101221A external-priority patent/IL101221A0/xx
Application filed by Arturo Moises Gotthelf, Elimelech Jeshurun filed Critical Arturo Moises Gotthelf
Publication of WO1992021393A1 publication Critical patent/WO1992021393A1/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
    • 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
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3253—Constructional features thereof, e.g. to improve manipulation or functioning disconnecting the needle hub from the syringe barrel during removal of the sleeve from the syringe barrel
    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M2005/342—Off-center needles, i.e. needle connections not being coaxial with the longitudinal symmetry axis of syringe barrel
    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

Definitions

  • the present invention relates, in general, to a safety device for medical syringe for injecting a medical fluid into a patient or for withdrawing a body fluid from same.
  • the invention relates to a medical syringe provided with protection means against needlestick injury while handling the syringe and allowing safe removal of needle from syringe.
  • G reat effort has been invested in protecting medical personnel against possible injury while handling syringes. Furthermore, efforts are invested in safe disposal of used needles, so as to prevent drug users, or any other unauthorized persons, from using needles, which might be contaminated. Thus, it is now a common rule in medical centers to discard used needles for destruction. Used needles are inserted into protective containers for disposal purposes just after completing use of same. Yet, it is well known that many injuries occur to medical personnel while removing the needle from the syringe for disposal purposes.
  • U.K. Patent Application No. 2,208,604 discloses a medical syringe having a protective sleeve capable of fitting over the used needle when the latter is coupled with the syringe and of making a snap-locking engagement with the syringe barrel when the needle is enclosed in the sleeve.
  • the rigid cover disclosed is fixedly secu ⁇ red in position and cannot be removed without breaking the syringe, therefore eliminating its use for blood withdrawal from patient.
  • U.K. Patent Application No. 2,225,723 discloses a new needle assembly and cylindrical cover housing which are usable with conventional syringes.
  • the needle assembly is especially constructed with catch slots to be adapted to receive inward projections in cover housing for engagement thereof, so as to secure the needle assembly in the cover housing after usage.
  • the device disclosed does not have means for the detachment of needle, when required.
  • a syringe adapted to be coupled to a needle, said syringe having a protective sleeve adapted to cover said needle after use and to remove same from said syringe thereafter, while the needle is protected by said sleeve
  • a known syringe having a substantially cylindrical hollow barrel with a tip adapted to be coupled to a known sterilized needle and provided with a plunger; adaptor means adapted to be coupled to said tip and to said needle; a substantially cylindrical sleeve located around said barrel provided with stopping means structured in corre ⁇ lation with the size and structure of said adaptor; wherein said sleeve is capable of fitting over said needle when pulled longitudinally along said barrel, until stopped by said stopping means and wherein subsequent longitudinal pull of the sleeve results in detachment of said adaptor together with needle and sleeve from said known syringe.
  • the invention also provides for an adaptor, adapted to be coupled to known syringe and known needles.
  • the adaptor of the invention is a substantially hollow cylinder characterized in that its outer diamete ' r being slightly bigger than the outer diameter of the hollow barrel and slightly smaller, or equal to the inner diameter of the protective sleeve.
  • the adaptor of the invention is provided with locking means capable of locking the needle to the adaptor, allowing the adaptor to pull the needle from the tip of the syringe, when the stopping means of the sleeve are pushed against the adaptor, thereby detaching the cove ⁇ red needle together with the adaptor fron the syringe.
  • known disposable needle are commonly provided with connical plastic base adapted to be coupled to the tip of a syringe.
  • the plastic conical base of the needle is provided with rims at its bottom.
  • the adaptor of the invention is structured to have an inner contour provided with protrusions, grooves or the like, adapted to be attached to the plastic base of known needles.
  • the inner contour may be provided with spiral protrusion or other known means capable of locking the plastic rims of the needle base.
  • the adaptor of the invention may be provided with any other known attachment means for the connical base of the needle, such as a hollow connical extension of the adaptor, dimensions of which are to be coupled to the inside of the plastic base of the needle such as by frictional force, thereby providing locking means for the needle.
  • any other known attachment means for the connical base of the needle such as a hollow connical extension of the adaptor, dimensions of which are to be coupled to the inside of the plastic base of the needle such as by frictional force, thereby providing locking means for the needle.
  • the adaptor of the invention may be attached to the known syringe by attachment means associated with the structure of the syringe.
  • the adaptor may be coupled to the known syringe to form the syringe of the invention, after the needle connected to the adaptor is attached to the tip of the barrel.
  • the stopping means of the protective sleeve of the invention are located at the inner surface of the sleeve towards the end of the sleeve, remotest of needle.
  • the invention also extends to an adaptor forming an integral part with the needle, preferably with the connical base of the needle, provided that the dimensions of the adaptor are such that its outer diameter is slightly bigger than the outer diameter of the hollow barrel of the known syringe it is to be attached to, and is slightly smaller or equal to the inner diameter of the protective sleeve provided with the known syringe.
  • the protective sleeve of the invention may be slightly slanted, the inner diameter of the sleeve slightly de ⁇ creasing as the sleeve is pulled over the barrel and the adaptor, for the covering of the needle.
  • the smallest inner diameter of the sleeve being substantially equal to the outer diameter of the adaptor and located towards the end of the sleeve, thereby forming a tight friction ⁇ al contact with the adaptor.
  • the fact that said diameter of sleeve is equal to the outer diameter of the adaptor serves as the stopping means of the sleeve.
  • the stopping means of the sleeve may be any protrusion or groove at .the inner surface of the sleeve, which stops the sleeve from beinc; further pulled over the adaptor.
  • all components of the syringe of the invention are made of disposable materials such as plastic materials.
  • the adaptor of the invention is made of rigid materials, though flexible materials may also be used, or a combination thereof.
  • the protective sleeve and other components of the syringe of the invention are made of transparent material.
  • Figure 1 is a side view of a syringe according to the invention, having a covered needle coupled therewith prior to use.
  • Figure 2 is an exploded view of the syringe with covered needle shown in figure 1.
  • Figure 3 is a crossectional ' view of an adaptor according to the invention.
  • Figure 4 is a crossectional view of another embodiment of an adaptor according to the invention.
  • Figure 5 is a side view of the syringe shown in figure 1 immediately after withdrawal of needle from patient.
  • Figure 6 is a side view of a following position of the syringe of figure 5 with covered needle.
  • Figure 7 is a side view of a following position of the syringe of figure 6 with detached needle.
  • Syringe 100 with needle shown in figures l and 2 comprises five basic units; syringe 1, protective sleeve 2, adaptor 3, needle 4 and needle cover 5.
  • Syringe 1 comprises cylindrical hollow barrel 6 having rims 8 tangential thereto, plunger 7, with rod 20 attached thereto and tip 9 adapted to be coupled to needle 4 in any known manner.
  • syringe 1 is a known syringe unit of common use.
  • the outer walls 10 of barrel 6 are slightly slanted as dictated by the method of manu ⁇ facturing plastic syringe. Thus, the circumference of barrel 6 is gradually increasing along its main axis to ⁇ wards rims 8.
  • Sleeve 2 is a hollow cylinder with sligh ⁇ tly slanted walls the slope thereof being in opposite direction to the slope of the outer walls 10 of hollow barrel 6.
  • Sleeve 2 is also provided with a tiny inner step 22 adjacent to the narrowest end of sleeve 2.
  • the lowest inner diameter of sleeve 2 marked in figure 2 by letter d serves as the stopping means of the sleeve and as detachment means in association with the structure of the adaptor as will be explained below.
  • the stopping means of sleeve 2 actually comp ⁇ rises two means, i.e. the gradual decrease of inner dia ⁇ meter of sleeve and the further decrease in diameter, resulting from the presence of step 22.
  • one of the stopping means described above should suffice as well as any other known stopping means.
  • Needle 4 has a conical plastic base 11 adapted to be mounted on tip 9.
  • Base 11 has a circurlar outward protrusion 12 at its bottom. It should be noted that needle 4, combined with base 11, is a known disposable sterile needle commonly used.
  • Circular adaptor 3 is a hollow cylinder having an alternating outer diameter and inner contour adapted to be coupled to syringe 1 and needle base 11.
  • Adaptor 3 is placed between and partly around tip 9 of syringe 1 and base 11 of needle 4 and is also embracing the end of hollow barrel 6 adjacent to tip 9.
  • the inner surface area of the adaptor adjacent to needle base 11 has spiral protrusions 24 serving as locking means for needle 4, whereby protrusion 12 is screwed into spiral protrusions 24.
  • the inner diameter 26 of adaptor 3 adjacent to hollow barrel 6 is equal to the outer diameter 27 of hollow barrel 6 at its end adjacent to tip 9, thereby allowing attachment of adaptor 3 to syringe 1 by frictional force.
  • Adaptor 3 is also provided with a round inner opening 25, diameter of which is substantially equal to outer diameter of tip 9, allowing to catch adaptor 3 on tip 9 by frictional force.
  • Adaptor 30 and 40 shown in figures 3 and 4 are hollow cylinders with external and internal curves different from those of adaptor 3 but having similar characteristic, i.e. means for coupling to needle in the form of spiral protrusions 31 and 41 respectively and external diameter 32 and 42 respectively slightly bigger than the external diameter of hollow barrel 6 and slightly smaller or equal to the lower most inner diame ⁇ ter (not shown in figures 3 and 4) of protective sleeve 2.
  • the length of adaptor may vary, as can be seen in the various adaptors shown in figures 2 to 4.
  • Adaptor for concentric syringe as shown in figures 2 and 3 are constructed symmetrically whereas adaptor for excentric syringes are non-symetric as shown in figure 4.
  • adaptor 3 allowing the sliding of sleeve.2 to cover and detach needle 4 from syringe 1, as will be explained hereinbelow, is the outer dimension of adaptor 3, having a diameter 28 slightly larger than the inner diameter d of sleeve 2.
  • the stopping means of the invention serve also as detachment means, allowing to detach needle .4 when covered by sleeve 2 together with adaptor 3 by subsequent longitudinal pull of sleeve 2 whereby the stopping means detach the adaptor from syringe 1, not allowing the adaptor and needle to move forward in the sleeve.
  • syringe 100 is shown prior to use.
  • Syringe barrel 6 is slidably mounted in protective sleeve 2;
  • syringe tip 9 is coaxially mounted in adaptor 3.
  • Covered needle 4 is attached to tip 9 of syringe 1 by a connical base 11 mounted thereon, while adaptor 3 does not obstruct the attachment.
  • Needle cover 5, which is a commonly used cover, is removed just prior to use of syringe, i.e. prior to withdrawing blood from patient, or injecting fluid medicine.
  • the syringe assumes the position shown in figure 5 wherein plunger 7 together with rod 20 may be positioned in any position along barrel 6 according to the function the syringe was used for, i.e. withdrawal of body fluids or injection of medicine.
  • the arrow in figure 5 shows the direction of longitudinal movement of sleeve 2 along hollow barrel 6.
  • Sleeve 2 having the slight connical structure as mentioned above, can slide relatively smoothly along barrel 6 and adaptor 3, the inner surface area of sleeve 2 touching the outer surface of barrel 6 and adaptor 3, up to the position shown in figure 6, wherein the lowermost inner diameter d of sleeve 2 reaches adaptor 3 and is stopped by step 22.
  • Sleeve 2 thus covers needle 4 and protects the handler of the syringe from accidental pricking.

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

Seringue médicale jetable pourvue d'une protection pour le personnel médical contre les piqûres et ayant deux parties supplémentaires: 1) une douille de protection (2) adaptée pour recouvrir l'aiguille (4) après utilisation; 2) un adaptateur (3, 30) à accoupler avec le bout (9) de la seringue et pourvu d'éléments de verrouillage (24, 31, 41) servant à verrouiller l'aiguille (4) dans cet adaptateur. Grâce à cette invention, l'aiguille (4) est recouverte de façon sûre et elle peut être enlevée en toute sécurité après utilisation.
PCT/EP1992/001151 1991-05-26 1992-05-25 Dispositif de securite pour seringue medicale WO1992021393A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IL98268A IL98268A0 (en) 1991-05-26 1991-05-26 Apparatus protecting from blood contamination by syringe puncture or contact
IL98268 1991-05-26
IL101221 1992-03-13
IL101221A IL101221A0 (en) 1992-03-13 1992-03-13 Safety device for medical syringe

Publications (1)

Publication Number Publication Date
WO1992021393A1 true WO1992021393A1 (fr) 1992-12-10

Family

ID=26322271

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/001151 WO1992021393A1 (fr) 1991-05-26 1992-05-25 Dispositif de securite pour seringue medicale

Country Status (3)

Country Link
EP (1) EP0570539A1 (fr)
AU (1) AU1871992A (fr)
WO (1) WO1992021393A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755275A1 (fr) * 1994-04-04 1997-01-29 THOMPSON, Clarence J. Dispositif protecteur pour aiguille de seringue
WO1997002854A1 (fr) * 1995-07-11 1997-01-30 Nardino Righi Seringue de securite pour operations de prelevement
CN107505383A (zh) * 2017-09-22 2017-12-22 山东国投鸿基检测技术股份有限公司 一种农药残留快速萃取质谱进样器
EP4218863A1 (fr) * 2022-01-26 2023-08-02 SMAS Technology Co., Ltd. Injecteur de sécurité

Citations (5)

* 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
WO1989010150A1 (fr) * 1988-04-18 1989-11-02 Nujenko Pty Ltd Seringue et fourreau d'aiguille protecteur
US4927417A (en) * 1988-07-07 1990-05-22 Schneider Medical Technologies, Inc. Safety sleeve adapter
US5019051A (en) * 1989-03-02 1991-05-28 Needlepoint Guard, Inc. Hypodermic needle guard
EP0485345A1 (fr) * 1990-10-19 1992-05-13 Patrizio Compagnucci Une seringue à usage unique incorporant un capuchon de protection coulissant pour l'aiguille

Patent Citations (5)

* 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
WO1989010150A1 (fr) * 1988-04-18 1989-11-02 Nujenko Pty Ltd Seringue et fourreau d'aiguille protecteur
US4927417A (en) * 1988-07-07 1990-05-22 Schneider Medical Technologies, Inc. Safety sleeve adapter
US5019051A (en) * 1989-03-02 1991-05-28 Needlepoint Guard, Inc. Hypodermic needle guard
EP0485345A1 (fr) * 1990-10-19 1992-05-13 Patrizio Compagnucci Une seringue à usage unique incorporant un capuchon de protection coulissant pour l'aiguille

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755275A1 (fr) * 1994-04-04 1997-01-29 THOMPSON, Clarence J. Dispositif protecteur pour aiguille de seringue
EP0755275A4 (fr) * 1994-04-04 1998-01-28 Clarence J Thompson Dispositif protecteur pour aiguille de seringue
WO1997002854A1 (fr) * 1995-07-11 1997-01-30 Nardino Righi Seringue de securite pour operations de prelevement
CN107505383A (zh) * 2017-09-22 2017-12-22 山东国投鸿基检测技术股份有限公司 一种农药残留快速萃取质谱进样器
CN107505383B (zh) * 2017-09-22 2024-02-02 山东国投鸿基检测技术股份有限公司 一种农药残留快速萃取质谱进样器
EP4218863A1 (fr) * 2022-01-26 2023-08-02 SMAS Technology Co., Ltd. Injecteur de sécurité

Also Published As

Publication number Publication date
AU1871992A (en) 1993-01-08
EP0570539A1 (fr) 1993-11-24

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