Needle protection device

• US 5,139,489 A
• Filed: 03/04/1991
• Issued: 08/18/1992
• Est. Priority Date: 01/07/1991
• Status: Expired due to Term

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Industries Medical Systems Incorporated
• Inventors: Hollister, William H.
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US07/663,454
• Time in Patent Office: 533 Days
• Field of Search: 128/760, 128/763, 128/770, 604/192, 604/198
• US Class Current: 604/192
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150496 Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150572 Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
• CPC Class Codes: A61B 5/150671 comprising means to impede repositioning of protection sleeve from covering to uncovering position
• CPC Class Codes: A61B 5/150732 Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube,
• CPC Class Codes: A61B 5/154 Devices using pre-evacuated means
• CPC Class Codes: A61M 2005/3109 Caps sealing the needle bore by use of, e.g. air-hardening adhesive, elastomer or epoxy resin
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

To be used with a double-ended needle assembly and to prevent the accidental pricking of user, or others, in a first embodiment of the present invention, a container holder mated with the needle assembly has a protective housing integrally and flexibly connected thereto. To prevent a contaminated needle from posing a risk to the user and others, the housing connected to the container holder is pivoted into alignment with the contaminated needle such that the needle is retained by at least one locking mechanism integral of the housing. The container holder, along with the contaminated needle assembly, can then be disposed of. If the container holder were to be reused, a second embodiment of the present invention provides for the connection of a protective housing to the hub of a double-ended needle assembly. For this embodiment, after use, the contaminated needle assembly, after having been properly retained in the protective housing, is removed from the reusable container housing and disposed of. Another embodiment of the invention relates to integrally and flexible connecting a protective housing to an adapter, which is interposed between the double-ended needle assembly and the container holder. Variants of the invention include a collapsible housing having a sealer therein which may be used to sealingly secure the tip of the contaminated needle and a collapsible hinge which likewise is used to effect the securing of the tip of the contaminated needle in a sealer adapted to the distal end portion of the housing.

Claims

1. A safety device to be used with a needle assembly having a first end for invasively contacting a body and a second end for communicating with a container, comprising:

a holder having a hollow main body section and a receptacle end extending therefrom, said holder further having an open end through which at least a portion of said container is inserted into said main body section, said receptacle end of said holder being mated with said second end of said needle assembly such that at least a portion of said second end extends into said main body section to be in communication with said inserted portion of said container to provide a conduit to said container for fluid passage between said body and said container;

housing means flexibly connected to said holder, and pivotable toward a position in substantial alignment along the longitudinal axis of said needle assembly for enveloping said first end of said needle assembly, said housing means including locking means for substantially fixedly retaining said first end of said needle assembly within said housing means once said housing means has been pivoted to said position.

2. Safety device of claim 1, wherein said housing means comprises a longitudinal sheath having an elongated slot through which said first end of said needle assembly passes when said sheath is pivoted to said position.

3. Safety device of claim 1, wherein said locking means comprises at least one hooking means integral of said housing means for substantially retaining said first end of said needle assembly within said housing means.

4. Safety device of claim 1, wherein said housing means is integrally connected to said receptacle end of said holder by a hinge means.

5. Safety device of claim 1, wherein said housing means is further connected to said main body section of said holder.

6. Safety device of claim 1, further comprising a substantially rigid shoulder member extending from said holder to flexibly connect said housing means.

7. Safety device of claim 1, wherein said container comprises a fluid collection tube having an internal pressure lower than the ambient atmospheric pressure such that, when said conduit is provided between said tube and said body, fluid from said body is drawn and collected in said tube.

8. Safety device of claim 1, wherein said needle assembly comprises a hub;

and

wherein said receptacle end of said holder is internally threaded for threadedly mating with said hub of said needle assembly.

9. Safety device of claim 1, wherein said housing means includes at least a cap portion and a main portion from which said housing means is connected to said holder, further comprising:

a collapsible section integrally interposed between said cap and main portions; and

means adapted to said cap portion of said housing means to substantially sealingly secure the tip of said first end of said needle assembly after said housing means has been pivoted to said substantial alignment position and said cap portion and said main portion have been relatively urged toward each other to thereby collapse said collapsible section.

10. Safety device of claim 1, wherein said housing means includes a cap portion, further comprising:

sealing means adapted to said cap portion of said housing means; and

wherein said housing means is integrally connected to said holder by a collapsible hinge means such that, after said housing means has been pivoted via said hinge means to substantially align along the longitudinal axis of said needle assembly to envelop said first end of said needle assembly, and said housing means and said holder have been relatively urged toward each other to collapse said hinge means, the tip of said first end of said needle assembly would penetrate into said sealing means and be substantially sealingly secured thereby.

11. A safety device for a double-ended needle assembly having opposed cannula portions, comprising:

a holder having a hollow main body section and a receptacle end extending therefrom, said holder further having an open end through which at least a portion of a container is insertable into said main body section, said receptacle end of said holder being mated with said needle assembly such that at least a portion of one of said opposed cannula portions of said needle assembly extends into said main body section to be in communication with said insertable portion of said container;

housing means flexibly connected to said holder, and pivotable toward a position in substantial alignment along the longitudinal axis of said needle assembly for enveloping the other of said opposed cannula portions, said housing means including locking means for substantially fixedly retaining said other of said opposed cannula portions within said housing means once said housing means has been pivoted to said position.

12. Safety device of claim 11, wherein said housing means comprises a longitudinal sheath having an elongated slot through which said other of said opposed cannula portions passes when said sheath is pivoted to said position.

13. Safety device of claim 11, wherein said locking means comprises at least one hooking means integral of said housing means for substantially preventing relative motion between said other of said opposed cannula portions and said housing means.

14. Safety device of claim 11, wherein said housing means is further integrally connected to said receptacle end of said holder by a hinge means.

15. Safety device of claim 11, further comprising a substantially rigid shoulder member extending from said holder to flexibly connect said housing means.

16. Safety device of claim 11, wherein said housing means includes at least a cap portion and a main portion from which said housing means is connected to said holder, further comprising:

a collapsible section integrally interposed between said cap and main portions; and

means adapted to said cap portion of said housing means to substantially sealingly secure the tip of said other of said opposed cannula portions after said housing means has been pivoted to said substantial alignment position and said cap portion and said main portion have been relatively urged toward each other to thereby collapse said collapsible section.

17. Safety device of claim 11, wherein said housing means includes a cap portion, further comprising:

sealing means adapted to said cap portion of said housing means; and

wherein said housing means is integrally connected to said holder by a collapsible hinge means such that, after said housing means has been pivoted via said hinge means to substantially align along the longitudinal axis of said needle assembly to envelop said other of said opposed cannula portions, and said housing means and said holder have been relatively urged toward each other to collapse said hinge means, the tip of said first end of said needle assembly would penetrate into said sealing means and be substantially sealingly secured thereby.