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WO1997039786A1 - Aiguille hypodermique de securite - Google Patents

Aiguille hypodermique de securite Download PDF

Info

Publication number
WO1997039786A1
WO1997039786A1 PCT/AU1997/000239 AU9700239W WO9739786A1 WO 1997039786 A1 WO1997039786 A1 WO 1997039786A1 AU 9700239 W AU9700239 W AU 9700239W WO 9739786 A1 WO9739786 A1 WO 9739786A1
Authority
WO
WIPO (PCT)
Prior art keywords
boss
outer tube
inner tube
needle
tube
Prior art date
Application number
PCT/AU1997/000239
Other languages
English (en)
Inventor
Luigi Luke Pisaniello
Marcel Paul Stephan
Original Assignee
Luigi Luke Pisaniello
Marcel Paul Stephan
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 Luigi Luke Pisaniello, Marcel Paul Stephan filed Critical Luigi Luke Pisaniello
Priority to AU24996/97A priority Critical patent/AU2499697A/en
Publication of WO1997039786A1 publication Critical patent/WO1997039786A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496—Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • 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
    • A61M5/3275—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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • 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
    • A61M2005/3212—Blunting means for the sharp end of the needle
    • 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

Definitions

  • This invention relates to a hypodermic needle suitable for either human or veterinary use.
  • hypodermic needle stick injuries relating to the use of hypodermic needles.
  • a hypodermic needle is necessarily sharpened so that it may be pushed through the skin but once used it is desirable that the hypodermic needle can not cause injury.
  • Many previous proposals have been made for systems whereby the needle of a hypodermic syringe is rendered safe after use but most of these systems have been complicated and require a specific operator function to render them safe.
  • the object of this invention is to provide a needle for a hypodermic syringe which is essentially fail safe.
  • the invention is said to reside in a safety hypodermic needle comp ⁇ sing a boss, an inner tube extending from the boss, the inner tube having a blunt end remote from the boss, an outer tube concentric with and slidably engaged onto the inner tube, the outer tube having a boss end and a remote end, the remote end being sharpened so as to enable it to puncture the skin of a patient in use, and a retention means between the boss of the inner tube and the boss end of the outer tube, the retention means adapted in its rest position to retain the outer tube in a position such that the blunt end of the inner tube extends beyond the sharpened remote end of the outer tube, the retention means being able to be activated such that in an activated position the remote end of the outer tube extends beyond the blunt end of the inner tube such that the hypodermic needle can be used to puncture the skin of a patient.
  • hypodermic needle is of a fail safe construction because in its rest position the blunt end of the inner tube extends beyond the sharpened end of the outer tube and even when the sharp end extends beyond the inner tube pressure on the needle which is not specifically resisted will push the outer tube back behind the blunt end making the needle essentially safe.
  • the retention means comprises a resilient means between the boss of the inner tube and the boss end of the outer tube, the resilient means adapted in its rest position to retract the outer tube into a position such that the blunt end of the inner tube extends beyond the sharpened remote end of the outer tube, the resilient means being able to be activated such that in an activated position the remote end of the outer tube extends beyond the blunt end of the inner tube such that the hypodermic needle can be used to puncture the skin of a patient.
  • the resilient means may comprise at least one arcuate band connected at one end to the boss of the inner tube and at the other end to the boss end of the outer tube and wherein the activation of the resilient means is achieved by flattening out of the arcuate band.
  • the arcuate band, the boss of the inner tube and the boss end of the outer tube may be integrally moulded.
  • the resilient means may comprise at least one helical shaped band connected at one end thereof to the boss of the inner tube and at the other end to the boss end of the outer tube.
  • the resilient means comprises an extension spring connected at one end to the boss of the inner tube and at the other end to the boss end of the outer tube.
  • the outer diameter of the inner tube may be substantially the same as the inner diameter of the outer tube such that the outer tube is a close fit on the inner tube.
  • a finger engagement means on the boss end of the outer tube such that finger pressure in use onto the finger engagement means can extend the outer tube to the use position.
  • a groove in the boss into which may be resiliently retained a detent on the finger engagement means when the outer tube is in the activated position.
  • the boss of the inner tube may include a tapered connection of the Luer lock type or a screw type connection for connection of the needle to a hypodermic syringe.
  • the safety hypodermic needle of the present invention may be adapted to be used with a vacuum blood withdrawal arrangement, the boss having a first screw thread thereon adapted to be received into a corresponding screw thread in a needle holder and a vacuum tube piercing needle extending from the boss in a direction diametrically opposite to that of the inner tube.
  • the retention means between the boss of the inner tube and the boss end of the outer tube comprises an arcuate band extending from the needle holder and a second screw threaded portion on the band co-axial with the first screw threaded portion on the needle holder and adapted upon insertion of the needle into the needle holder to engage with a corresponding screw threaded portion on the boss end of the outer tube, the arcuate band being able to be activated to move the outer tube over the inner tube from a needle protected position to a needle extended position.
  • the outer tube being the sharpened tube and being able to slide along the inner tube it can retract over the inner tube so that the sharpened end does not provide a danger to users or patients.
  • simple finger pressure can push the outer tube far enough forward either against the resilient means or the retention means to enable the needle to pierce the skin.
  • FIG 1 shows a cross-sectional view of one embodiment of safety hypodermic needle according to this invention
  • FIG 2 shows the embodiment of Figure 1 in the extended position
  • FIG 3 shows a side view of the embodiment of Figure 1 ;
  • FIG 4 shows a side view of the embodiment of Figure 2
  • FIG 5 shows an alternative embodiment of safety hypodermic needle with a cage of resilient bands
  • FIG 6 shows the embodiment as shown in Figure 5 with the needle extended
  • FIG 7 shows an alternative embodiment of hypodermic needle according to this invention with a non-resilient retention means between the fixed and moving parts of the needle;
  • FIG 8 shows the embodiment of Figure 7 with the moving part in the extended position
  • FIG 9 shows a cross-sectional view of the embodiment shown in Figure 7;
  • FIG 10 shows a further embodiment of the invention using an extension spring as the resilient means
  • FIG 11 shows the embodiment of Figure 10 in the extended position
  • FIG 12 A and B show an alternative embodiment of hypodermic needle according to this invention with separate parts for the fixed tube and moving needle which can be assembled together;
  • FIG 13 shows a perspective view of the alternative embodiment of hypodermic needle according to this invention of FIG 12;
  • FIG 14 shows the embodiment of Figure 12 with the moving part in the extended position; and FIGS 15A, B, C and D show various stages in the assembly and use of an alternative embodiment of a safety hypodermic needle of the present invention which is particularly adapted for the extraction of a patient's blood using a vacuum tube system.
  • the safety hypodermic needle comprises a boss section 1 with a elongate inner tube 2 which terminates in a blunt end 3.
  • the boss includes a gripping shoulder 4 and a Luer lock taper arrangement for connecting on to the tube of a hypodermic syringe (not shown).
  • An outer tube 7 has a boss end 8 and a sharpened remote end 9. It will be noted that in the embodiment shown in FIG 1 the sharpened remote end is withdrawn over the blunt end so that it can not injure someone.
  • FIGS 5 and 6 there is a cage of resilient bands 20 extending between the boss 21 and the boss end 22 of the outer tube 23.
  • the resilient bands 20 are formed in such a way that in there rest position the sharpened end 24 of the outer tube is retracted to expose the blunt end 25 of the inner tube 26.
  • the cage 20 may have direct pressure placed upon it to move the outer tube forward to the insertion position.
  • the retention means generally shown as 30 comprise a plurality of rods 31 extending from a shoulder 32 on the boss 33 of the outer tube 34.
  • the inner tube 35 has a boss 36 which includes a flange 37 which has apertures through which the rods 31 pass.
  • the rods have enlargements 38 at their terminal ends so that they cannot be pulled through the apertures 39 in the flange 37 to enable the outer tube to come off the inner tube.
  • FIGS 10 and 11 has an extension spring 40 between the boss 41 of the inner tube 42 and the boss 43 of the outer tube 44.
  • a finger engagement shoulder 46 enables a finger to push the boss 43 and the outer tube 44 forward so that the sharpened part 45 extends beyond the blunt end of the inner tube 42 to enable the needle to pierce the skin.
  • the sharpened outer tube will retract so that again the blunt end of the inner tube 42 is exposed and the needle is in a fail safe position.
  • FIGS 12A and B, 13 and 14 show an embodiment of the invention in which the resilient retaining means is a helical shaped band resilient 50 which is at one end connected to a finger engagement extension 51 of the which is mounted to the boss 52 on the moveable sharpened needle 53.
  • a moulded ring 54 At the other end of the helical shaped band 50 is a moulded ring 54 which when the two parts shown in FIGS 12A and B are assembled fits into a groove 55 in the boss 56 of the fixed blunt tube 57.
  • the boss 56 also includes a pair of shoulders 58 which act as guides for the finger engagement extension 51 as it is moved forward so as to move the sharpened needle 53 over the blunted tube 57.
  • the finger engagement extension also includes a detent 58A on its underside which when the finger engagement extension is in the extended position is received into a groove 59 in the boss 52 so that transverse pressure on the finger engagement extension assists with retaining the sharpened needle in the forward position. Removal of finger pressure on the finger engagement extension 51 causes the detent 58A to come out of the groove 59 and then the helical shaped resilient band tracts the sharpened needle to expose the blunted tube and render the needle safe.
  • the aperture 60 is of a standard LUER taper so as to receive the spout of a syringe.
  • FIGS 15A, B, C and D show various stages in the assembly and use of an alternative embodiment of a safety hypodermic needle of the present invention which is particularly adapted for the extraction of a patient's blood using a vacuum tube.
  • the assembly consists of a reusable needle holder 61 , a disposable needle assembly 62 of the present invention and a vacuum tube 63 of known construction.
  • the reusable needle holder 61 has a body 65 of generally cylindrical shape and an end wall 66 at one end in the centre of which is a first threaded aperture 67 aligned with the longitudinal axis of the cylindrical body 65. Extending from one side of the end wall 66 is a resilient band 68. On the end of the band 68 is an enlargement 69 which has a second threaded aperture 70 which is co-axial with the first threaded aperture 67 and the cylindrical body 65.
  • the disposable needle assembly 62 comprises an inner boss 71 approximately in the centre of an elongate tube 73 of which the end 74 is sharpened and the end 75 is blunt.
  • the inner boss 71 has a male thread 76 corresponding to the thread of the first threaded aperture 67.
  • Over the elongate tube and on the blunt end side of the boss 71 is a needle 77 with an outer boss 78.
  • the outer boss 78 has a male thread 79 corresponding to the thread of the second threaded aperture 70. The sizes of the threaded portions are such that the threaded boss 71 will pass through the threaded aperture 70 without engaging that thread.
  • Extensions 84 on the inner boss 71 extend parallel to the tube 73 towards the outer boss 78 and are received in slots 85 in the outer boss 78 so that at least in the retracted position of the sharpened needle rotation of one of the bosses also rotates the other boss.
  • a cap 81 fits over the needle 77 and engages onto a taper 82 on the boss 78.
  • the needle assembly 62 is inserted into the needle holder 61 so that the first and second threads mate into their respective threaded apertures so that the needle assembly is retained in the needle holder as shown in FIG 15B.
  • the resilient band 68 is depressed or the enlargement 69 is pushed forward so that the needle 77 is propelled forward to extend beyond the blunt end 75.
  • the band 68 or the enlargement 69 is released and the sharpened needle retracts.
  • a vacuum tube 63 is then inserted into the needle holder as shown in FIG 15D. The needle 74 pierces the seal 86 and the vacuum within the tube 63 withdraws blood through the tube 73.
  • hypodermic needle according to this invention may be placed onto existing syringes.
  • the inner and outer tubes may as conventionally be made from stainless steel and the bosses of each of the tubes may be from injection moulded plastic or the like. Alternatively at least the inner tube may be manufactured from plastics material.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne une aiguille hypodermique de sécurité qui comporte un tube intérieur contondant et un tube extérieur effilé (7) pouvant coulisser sur le tube intérieur (2) ainsi qu'un moyen de rétention (10) entre une protubérance (1) sur le tube intérieur (2) et le tube extérieur (7). Le moyen de rétention (10) dans une position de repos retient le tube extérieur (7) dans une position de sécurité, et dans une position activée étend le tube extérieur de sorte que l'aiguille hypodermique peut être utilisée pour piquer la peau du patient. Le moyen de rétention peut être élastique. Le système peut également être utilisé avec des systèmes de prélèvement de sang sous vide.
PCT/AU1997/000239 1996-04-22 1997-04-17 Aiguille hypodermique de securite WO1997039786A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU24996/97A AU2499697A (en) 1996-04-22 1997-04-17 A safety hypodermic needle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN9412 1996-04-22
AUPN9412A AUPN941296A0 (en) 1996-04-22 1996-04-22 A safety hypodermic needle

Publications (1)

Publication Number Publication Date
WO1997039786A1 true WO1997039786A1 (fr) 1997-10-30

Family

ID=3793726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000239 WO1997039786A1 (fr) 1996-04-22 1997-04-17 Aiguille hypodermique de securite

Country Status (2)

Country Link
AU (1) AUPN941296A0 (fr)
WO (1) WO1997039786A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013300A3 (fr) * 1998-12-23 2002-06-19 Ethicon, Inc. Stylet émoussé pour ensemble aiguille
EP1358846A1 (fr) * 2002-05-02 2003-11-05 Becton, Dickinson and Company Ensemble d'aiguille double-émoussante de securité de prelèvement de sang
EP1358898A1 (fr) * 2002-05-02 2003-11-05 Becton, Dickinson and Company Ensemble aiguille comprenant un mécanisme d'émoussement
US6936031B2 (en) 2000-12-12 2005-08-30 Gambro Dasco S.P.A. Site for access to the inside of a channel, and corresponding cannula
EP1632179A1 (fr) * 2004-09-02 2006-03-08 Nipro Corporation Lancette avec un protecteur d'aiguille
CN106964020A (zh) * 2017-04-12 2017-07-21 侯颖萍 防刺注射针

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527291A (en) * 1923-07-09 1925-02-24 Zorraquin Guillermo Safety-pressure-indicating needle
GB624269A (en) * 1947-06-23 1949-06-01 Syed Anwer Hossain Improvements relating to injection needles
US2623521A (en) * 1951-03-12 1952-12-30 Rose Shaw Indicating stylet needle
US4911694A (en) * 1988-05-06 1990-03-27 Dolan Michael F Syringe needle sheath

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527291A (en) * 1923-07-09 1925-02-24 Zorraquin Guillermo Safety-pressure-indicating needle
GB624269A (en) * 1947-06-23 1949-06-01 Syed Anwer Hossain Improvements relating to injection needles
US2623521A (en) * 1951-03-12 1952-12-30 Rose Shaw Indicating stylet needle
US4911694A (en) * 1988-05-06 1990-03-27 Dolan Michael F Syringe needle sheath

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013300A3 (fr) * 1998-12-23 2002-06-19 Ethicon, Inc. Stylet émoussé pour ensemble aiguille
AU768218B2 (en) * 1998-12-23 2003-12-04 Medex, Inc. Solid blunt for a needle assembly
US6676636B2 (en) 1998-12-23 2004-01-13 Medex, Inc. Solid blunt for a needle assembly
US6936031B2 (en) 2000-12-12 2005-08-30 Gambro Dasco S.P.A. Site for access to the inside of a channel, and corresponding cannula
EP1358846A1 (fr) * 2002-05-02 2003-11-05 Becton, Dickinson and Company Ensemble d'aiguille double-émoussante de securité de prelèvement de sang
EP1358898A1 (fr) * 2002-05-02 2003-11-05 Becton, Dickinson and Company Ensemble aiguille comprenant un mécanisme d'émoussement
US6761704B2 (en) 2002-05-02 2004-07-13 Becton, Dickinson And Company Safety blood collection needle assembly
US7678076B2 (en) 2002-05-02 2010-03-16 Becton, Dickinson And Company Needle assembly
US7972309B2 (en) 2002-05-02 2011-07-05 Becton, Dickinson And Company Needle assembly
EP1632179A1 (fr) * 2004-09-02 2006-03-08 Nipro Corporation Lancette avec un protecteur d'aiguille
CN106964020A (zh) * 2017-04-12 2017-07-21 侯颖萍 防刺注射针

Also Published As

Publication number Publication date
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