Lancet handling and disposal assembly

• US 5,207,699 A
• Filed: 11/08/1991
• Issued: 05/04/1993
• Est. Priority Date: 10/30/1989
• Status: Expired due to Fees

• Current Assignee: Coe & Levay Engineering Co.
• Original Assignee: Frederick L. Coe
• Inventors: Coe, Frederick L.
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US07/789,762
• Time in Patent Office: 543 Days
• Field of Search: 128/917, 128/919, 606/181, 606/185, 606/182, 606/183, 606/186, 604/192, 604/263, 604/193, 604/199, 604/110
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/150641 comprising means to impede repositioning of protection sleeve from covering to uncovering position
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: Y10S 128/919 Syringe, means to protect user

Abstract

A lancet extraction and handling assembly adapted for protectively covering and removing a lancet from an automatic lancet device. In all preferred embodiments the lancet has a slotted hub portion. In one preferred embodiment, the extractor has a hollow, substantially cylindrical covering portion which slides over the lancet hub to protectively cover the sharp tip. The covering portion of the lancet extractor has a flexible tab on its inner surface mated to the slot in the hub of the lancet which permits easy insertion of the lancet into the extractor. When the extractor is positioned over the lancet, the extractor tab engages the lancet slot to resist undesired removal of the lancet from the extractor. Pilot means may be provided to guide the extractor over the lancet to facilitate proper registration of the extractor tab with the lancet slot. Alternatively, a visual indicator may also be provided to facilitate registration of the extractor tab with the lancet slot when the extractor is slid over the lancet for removal.

Claims

1. A blood lancet assembly comprising, in combination, a blood lancet and a protective cap;

said blood lancet having a sharp tip suitable for puncturing the skin and a substantially cylindrical hub dimensioned to removably attach to the pivotal arm of an automatic lancet device, said protective cap further comprising;

(a) a first cavity for receiving and protectively enveloping the sharp tip of said blood lancet prior to use of said blood lancet;

(b) means for releasably securing said lancet to said cap when said sharp tip is protectively enclosed within said first cavity;

(c) a second cavity for receiving and protectively enveloping the sharp tip of said blood lancet after said blood lancet has been used to puncture the skin; and

(d) means within said second cavity for non-releasably securing said lancet to said cap when the sharp tip of said lancet is enclosed within said second cavity.

2. The blood lancet assemble of claim 1 wherein said hub has a removal slot comprising an indentation in the outer surface thereof.

3. The blood lancet assemble of claim 2 wherein said means for non-releasably securing said lancet to said cap comprises a locking tab projecting inwardly from the wall of said second cavity dimensioned to lockingly engage said removal slot in said lancet hub when the sharp tip of said lancet is enclosed within said second cavity.

4. The blood lancet assemble of claim 1 or 3 wherein said means for releasably securing said lancet to said cap comprises a breakaway connection attaching said protective cap to said blood lancet when said sharp tip is protectively enclosed within said first cavity.