CA2447944A1 - Needle shield assembly having hinged needle shield - Google Patents

Needle shield assembly having hinged needle shield Download PDF

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Publication number
CA2447944A1
CA2447944A1 CA002447944A CA2447944A CA2447944A1 CA 2447944 A1 CA2447944 A1 CA 2447944A1 CA 002447944 A CA002447944 A CA 002447944A CA 2447944 A CA2447944 A CA 2447944A CA 2447944 A1 CA2447944 A1 CA 2447944A1
Authority
CA
Canada
Prior art keywords
needle shield
needle
assembly
hub
projection
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002447944A
Other languages
French (fr)
Other versions
CA2447944C (en
Inventor
Charles G. Hwang
Bradley M. Wilkinson
C. Mark Newby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2447944A1 publication Critical patent/CA2447944A1/en
Application granted granted Critical
Publication of CA2447944C publication Critical patent/CA2447944C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A61M5/3216—Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
    • 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
    • A61M5/3216—Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
    • A61M2005/3217—Means to impede repositioning of protection cap from needle covering to needle uncovering position, e.g. catch mechanisms

Abstract

A needle shield assembly (20) including a hinged needle shield (26) is provided. A ramp assembly (37) is provided in proximity to a hinge (160) that connects the needle shield (26) to base assembly (23). The ramp (37) is preferably flexible, and, if compressed, resiliently urges the needle shield (26) to a preferred angular position with respect to the syringe (33). The needle shield (26) is movable between a fully opened position where it is canted at an angle with respect to the syringe (33) and a closed position in which it envelops the needle. One or more locking elements are preferably provided on the needle shield (26) for maintaining it in a locked, needle protecting position.

Claims (29)

1. A needle shield assembly comprising:
a base assembly including a hub and a base member connected to said hub;
a needle cannula having a proximal portion secured to said hub and a distal portion extending from said hub, said needle cannula having a longitudinal axis;
a coupling on said base assembly, said coupling including a channel transverse to said longitudinal axis of said needle cannula and a channel opening;
a projection on said base assembly having a distal end proximal to said channel and a top surface, said top surface being inclined outwardly with respect to said longitudinal axis in the distal direction; and a needle shield having a cavity therein hingedly connected to said coupling at said channel, said needle shield capable of rotating from an open position wherein said needle cannula is exposed, to a closed needle protecting position wherein at least the distal position of said needle cannula is in said cavity.
2. The needle shield assembly of claim 1 including a pin on said needle shield, said pin being positioned for rotational movement in said channel.
3. The needle shield assembly of claim 1 including means for locking said needle shield in said closed needle protecting position.
4. The needle shield assembly of claim 1 wherein said needle shield includes a proximal end portion having a top surface, said top surface of said needle shield being able to contact said projection when said needle shield is rotated to said open position.
5. The needle shield assembly of claim 1 wherein said projection is flexibly mounted to said base assembly, said needle shield being able to contact said projection when said needle shield is in said open position.
6. The needle shield assembly of claim 5 wherein said projection includes a proximal end coupled to said base assembly and a distally extending tab.
7. The needle shield assembly of claim 6 wherein said tab is flexible and able to contact said base member.
8. The needle shield assembly of claim 7 wherein said tab is coupled to said base assembly by a living hinge.
9. The needle shield assembly of claim 8 including a pin on said needle shield, said pin being positioned for rotational movement in said channel.
10. The needle shield assembly of claim 9 wherein said needle shield includes a locking member for locking said needle shield in said closed needle protecting position.
11. The needle shield assembly of claim 1 wherein said hub, said base member and said coupling are integrally formed of one-piece construction of plastic material.
12. The needle shield assembly of claim 11 wherein said plastic material comprises polypropylene.
13. A needle shield assembly comprising:
a base assembly including a hub, a base member connected to said hub, and a coupling on said base member, a needle cannula having a proximal portion secured to said hub and a distal portion extending from said hub, said needle cannula having a longitudinal axis;
said coupling including a channel transverse to said longitudinal axis of said needle cannula;
a flexible projection on said base assembly, said projection being positioned proximally with respect to said coupling, and a needle shield having a cavity therein hingedly connected to said base assembly at said channel, said needle shield capable of rotating from an open position wherein said needle cannula is exposed to closed needle protecting position, said needle shield able to contact said flexible projection when said needle shield is in said open position.
14. The needle shield assembly of claim 13 wherein said projection includes a proximal end pivotably coupled to said base assembly and a distally extending tab, said channel includes a proximally facing opening, and said tab includes a surface in opposing relation to said channel opening.
15. The needle shield assembly of claim 14 wherein said tab includes a top surface that is inclined outwardly with respect to said longitudinal axis in the distal direction.
16. The needle shield assembly of claim 15 wherein said tab is able to contact said base assembly when said needle shield is contacting said tab.
17. The needle shield assembly of in claim 13 including a pin on said needle shield, said pin being positioned for rotational movement in said channel.
18. The needle shield assembly of claim 13 further including an elongate hollow needle cover having an open proximal end releasably engaged to said base member so that said needle cannula is in said needle cover.
19. The needle shield assembly of claim 18 wherein said base member includes a substantially cylindrical body joined to said hub and surrounding a distal end portion of said hub, and said open proximal end of said needle cover releasably engages said cylindrical body.
20. The needle shield assembly of claim 13 wherein said base assembly is integrally formed of one-piece construction of plastic material.
21. The needle shield assembly of claim 20 wherein said plastic material comprises polypropylene.
22. A needle shield assembly comprising:
a base assembly including a hub, a base member connected to said hub, and a coupling on said base member;
a needle cannula having a proximal portion secured to said hub and a distal portion extending from said hub, said needle cannula having a longitudinal axis;
a projection on said base assembly, said projection being positioned proximally with respect to said coupling, said projection having a top surface being inclined outwardly with respect to said longitudinal axis in a distal direction; and a needle shield having a cavity therein hingedly connected to said coupling, said needle shield capable of rotating from an open position wherein said needle cannula is exposed, to a closed needle protecting position wherein at least the distal portion of said needle cannula is in said cavity, said needle shield being able to contact said projection when said needle shield is rotated to said open position.
23. The needle shield assembly of claim 22 wherein said projection is flexibly mounted to said base assembly.
24. The needle shield assembly of claim 23 wherein said projection includes a proximal end coupled to said base assembly and a distally extending tab.
25. The needle shield assembly of claim 24 wherein said tab is able to contact said base member and said needle shield when said needle shield is in said open position.
26. The needle shield assembly of claim 22 wherein said coupling includes a channel transverse to said longitudinal axis of said needle cannula and a channel opening.
27. The needle shield assembly of claim 26 wherein said needle shield includes a pin positioned for rotational movement in said channel.
28. The needle shield assembly of claim 22 wherein said base assembly is integrally formed of one-piece construction of plastic material.
29. The needle shield assembly of claim 28 wherein the plastic material comprises polypropylene.
CA2447944A 2001-05-22 2002-04-30 Needle shield assembly having hinged needle shield Expired - Lifetime CA2447944C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29268001P 2001-05-22 2001-05-22
US60/292,680 2001-05-22
US35590702P 2002-02-11 2002-02-11
US60/355,907 2002-02-11
PCT/US2002/013581 WO2002094340A2 (en) 2001-05-22 2002-04-30 Needle shield assembly having hinged needle shield

Publications (2)

Publication Number Publication Date
CA2447944A1 true CA2447944A1 (en) 2002-11-28
CA2447944C CA2447944C (en) 2010-07-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2447944A Expired - Lifetime CA2447944C (en) 2001-05-22 2002-04-30 Needle shield assembly having hinged needle shield

Country Status (12)

Country Link
US (2) US20050004531A1 (en)
EP (2) EP1401514B1 (en)
JP (1) JP4350952B2 (en)
CN (1) CN1229150C (en)
AT (2) ATE484304T1 (en)
AU (1) AU2007234639B2 (en)
CA (1) CA2447944C (en)
DE (2) DE60238007D1 (en)
DK (2) DK1401514T3 (en)
ES (2) ES2314066T3 (en)
MX (1) MXPA03010647A (en)
WO (1) WO2002094340A2 (en)

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EP1401514A2 (en) 2004-03-31
JP2004525741A (en) 2004-08-26
WO2002094340A3 (en) 2003-03-13
US7854723B2 (en) 2010-12-21
US20050004531A1 (en) 2005-01-06
CN1229150C (en) 2005-11-30
WO2002094340A2 (en) 2002-11-28
EP1401514B1 (en) 2008-10-22
ATE484304T1 (en) 2010-10-15
US20080033362A1 (en) 2008-02-07
EP2014324A1 (en) 2009-01-14
DK2014324T3 (en) 2011-02-07
AU2007234639B2 (en) 2009-12-10
ATE411825T1 (en) 2008-11-15
ES2354497T3 (en) 2011-03-15
EP2014324B1 (en) 2010-10-13
CA2447944C (en) 2010-07-27
MXPA03010647A (en) 2004-03-02
DE60238007D1 (en) 2010-11-25
CN1520319A (en) 2004-08-11
AU2007234639A1 (en) 2007-12-13
ES2314066T3 (en) 2009-03-16
EP1401514A4 (en) 2007-08-22
DK1401514T3 (en) 2009-03-02
JP4350952B2 (en) 2009-10-28
DE60229521D1 (en) 2008-12-04

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