Re-usable end cap for re-usable lancet devices for removing and disposing of a contaminated lancet

• US 5,797,942 A
• Filed: 09/23/1996
• Issued: 08/25/1998
• Est. Priority Date: 09/23/1996
• Status: Expired due to Term

• Current Assignee: Steven Schraga
• Original Assignee: Steven Schraga
• Inventors: Schraga, Steven
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US08/716,748
• Time in Patent Office: 701 Days
• Field of Search: 606/182, 606/183, 606/181, 604/263
• 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 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: A61M 2005/3249 Means to disalign the needle tip and the distal needle passage of a needle protection sleeve
• CPC Class Codes: A61M 2005/3253 disconnecting the needle hub from the syringe barrel during removal of the sleeve from the syringe barrel
• CPC Class Codes: A61M 5/3205 Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles for sharps A61B50/362; disintegrating apparatus in general B02C, e.g. B02C19/0075, B23H9/001; disposal of medical waste in general B09B3/00; receptacles for refuse disposal in general B65F1/00

Abstract

An improved and re-useable end cap for use with common, hand-held lancet devices, of the type having a main body and an actuatable lancet receiving assembly structured to temporarily hold a lancet inserted thereinto and to drive the lancet into a piercing orientation so as to prick a patient'"'"'s skin. The re-useable end cap of the present invention includes a housing having a first end defining an open mouth for removable attachment to the lancet device, a second end having an opening therein and defining a tubular, hollow, main body between therebetween. The open mouth and main body of the cap are structured and disposed to permit at least partial passage of the lancet and lancet receiving assembly therethrough and into a piercing orientation wherein a sharp tip of said lancet is exposed through the opening of the second cap end. The improved re-usable end cap of the present invention, which are intended for use after the lancet receiving assembly has been fired, includes at least one member attached to the cap housing which is movable relative to the cap between a first withdrawn position and a second engaged position. In the second engaged position, the at least one member attached to the cap housing engages the lancet so as to withdraw the lancet from the lancet receiving assembly upon removal of the end cap from the lancet device, and can be utilized to selectively retain the lancet within the cap to facilitate proper disposal.

Claims

1. An improved lancet device comprising:

I) a main body,

II) an actuatable lancet receiving assembly structured and disposed to temporarily hold a lancet and to drive the lancet into a piercing position, and

III) a re-useable cap, said re-useable cap comprising;

a) a substantially non-deformable housing having an at least partially open forward end and back end and a surrounding sidewall structure between said ends defining a hollow interior within said housing;

b) said back end of said cap structured and disposed for being removably secured to the main body of the lancet device;

c) said hollow interior of said cap structured and disposed to permit movement of the lancet therethrough and into the piercing position;

d) said front end of said cap structured and disposed to permit passage of at least a tip of the lancet therethrough upon movement of the lancet and lancet receiving assembly into the piercing position;

e) engagement means operably coupled to said cap and structured to be affirmatively actuated for engaging the lancet while said housing remains substantially undeformed so as to prevent relative movement between the lancet and said cap and thereby provide for withdrawing of the lancet from the lancet receiving assembly upon removal of said cap from the main body of the lancet device; and

f) said engagement means further being capable of being actuated for selectively releasing the lancet for disposal.

2. An improved, lancet device as recited in claim 1, wherein said engagement means are movable relative to said cap between a first withdrawn position and a second engaged position.

3. An improved, lancet device as recited in claim 2, wherein said cap includes biasing means operably coupled to said engagement means for biasing said engagement means towards said first, withdrawn position.

4. An improved, lancet device as recited in claim 3, wherein said engagement means comprise at least one member and include a head portion and an abutment segment.

5. An improved, lancet device as recited in claim 3, wherein said engagement means return to said first withdrawn position upon being released.

6. An improved lancet device as recited in claim 1, wherein said engagement means are disposed on said cap between said first and second ends and are aligned with a location of the lancet when the lancet receiving assembly is in an intermediate at-rest orientation.

7. An improved, lancet device as recited in claim 1, wherein said engagement means are exteriorly actuatable by a user.

8. A lancet device comprising:

I) a main body;

II) an actuatable lancet receiving assembly structured and disposed to temporarily hold a lancet and to drive the lancet into a piercing position;

III) a re-useable cap, said re-useable cap comprising;

a) a housing having an at least partially open forward end and back end and a surrounding sidewall structure between said ends defining a hollow interior within said housing;

b) said back end of said cap structured and disposed for being removably secured to the main body of the lancet device;

C) said hollow interior of said cap structured and disposed to permit movement of the lancet therethrough and into the piercing position;

d) said front end of said cap structured and disposed to permit passage of at least a tip of the lancet therethrough upon movement of the lancet and lancet receiving assembly into the piercing position; and

e) engagement means attached to said cap and structured and disposed to be movable relative to said cap between a first withdrawn position and a second engaged position, said engagement means in said second engaged position engaging the lancet while said housing remains substantially undeformed and preventing relative movement between the lancet and said cap upon removal of said cap from said main body so as to withdraw the lancet from a retained position in said actuatable lancet receiving assembly.

9. An improved, lancet device as recited in claim 8, wherein said engagement means are structured and disposed to permit free movement of the lancet and at least part of the lancet receiving assembly through said cap and into the piercing position, when said engagement means are disposed in said first withdrawn position.

10. An improved, lancet device as recited in claim 9, wherein said cap includes biasing means operably coupled to said engagement means, said biasing means being structured and disposed for biasing and returning said engagement means into said first, withdrawn position, upon said engagement means being released from said second engaged position.

11. An improved, lancet device as recited in claim 9, wherein said engagement means are structured and disposed to be selectively moved into said second engaged position wherein said means engage the lancet.

12. An improved, lancet device as recited in claim 11, wherein said engagement means are structured and disposed to withdraw the lancet from the lancet receiving assembly upon removal of said cap from the main body of the lancet device when disposed in said second position.

13. An improved, lancet device as recited in claim 12 wherein said engagement means includes a head portion and an abutment segment.

14. An improved, lancet device as recited in claim 13, wherein said head portion of said engagement means is structured and disposed to protrude from and extend out of a common plane defined by said sidewall structure of said cap so as to be exteriorly actuated by a user.

15. An improved, lancet device as recited in claim 13, wherein in said second engaged position, said abutment segment is structured to pin the body of the lancet against an inner surface of said surrounding side wall structure so as to hold and withdraw the lancet from the lancet receiving assembly upon removal of said cap from the lancet device.

16. A device comprising:

a) lancet holding means;

b) a lancet inserted into said holding means; and

c) a cap having a first end comprising an open mouth for removable attachment to said lancet holding means, a second end having an opening therein and a hollow, main body between said ends, said main body being formed of a generally non-deformable material;

d) said open mouth and main body of said cap structured and disposed to permit at least partial passage of said lancet and lancet holding means therethrough and into a piercing position wherein a sharp tip of said lancet is exposed through said opening of said second cap end; and

e) engagement means formed on said cap, exteriorly actuatable, and movable relative to said cap between a first withdrawn position and a second engaged position wherein the lancet is engaged and can be withdrawn from said lancet holding means and selectively retained within said cap said main body remaining substantially undeformed while said engagement means moves from said first position to said second position.

17. An improved, re-useable lancet cap for a lancet device as recited in claim 16, wherein said engagement means comprise at least one member.

18. An improved, re-useable lancet cap for a lancet device as recited in claim 17 further comprising biasing means operably coupled to said engagement means for biasing and returning said engagement means into said first withdrawn position upon said engagement means being selectively released from said second engaged position.

19. An improved, re-useable lancet cap for a lancet device as recited in claim 18 wherein said engagement means include a head portion and an abutment segment, said head portion being exteriorly actuatable for selectively causing movement of said engagement means into said second engaged position.

20. An improved, re-useable lancet cap for a lancet device as recited in claim 19 wherein said engagement means comprises a single member and said abutment segment is structured and disposed to be selectively moved into an interior of said housing and into said second engaged position wherein said abutment segment engages the body of the lancet and pins the lancet against an inner surface of said surrounding sidewall structure of said cap, so as to hold and withdraw the lancet from the lancet receiving assembly of the lancet device upon removal of said cap from the lancet device.