LANCET DEVICE WITH COMBINED TRIGGER AND COCKING MECHANISM AND METHOD

• US 20080243159A1
• Filed: 03/30/2007
• Published: 10/02/2008
• Est. Priority Date: 03/30/2007
• Status: Active Grant

• Current Assignee: Stat Medical Devices Incorporated
• Original Assignee: Stat Medical Devices Incorporated
• Inventors: SCHRAGA, Steven
• Granted Patent: US 8,469,986 B2
• Time in Patent Office: Days
• US Class Current: 606/167
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150183 Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
• 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 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• 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 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• 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: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

Lancet device including a skin engaging end that includes a lancet opening through which a lancet needle may extend, a movably mounted holding member configured to receive a lancet, and a combined triggering and cocking system structured and arranged to move the holding member to a retracted position during a cocking phase and to cause the holding member to move to an extended position during a triggering phase. A method of puncturing a surface of skin using the lancet device includes disposing the skin engaging end against a user'"'"'s skin and manually activating the combined triggering and cocking system. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Claims

1. A lancet device comprising:

a skin engaging end that includes a lancet opening through which a lancet needle may extend;

a movably mounted holding member configured to receive a lancet; and

a combined triggering and cocking system structured and arranged to move the holding member to a retracted position during a cocking phase and to cause the holding member to move to an extended position during a triggering phase.

2. The lancet device of claim 1, wherein the combined triggering and cocking system is activated manually and automatically causes the holding member to move to the extended position during the triggering phase.

3. The lancet device of claim 1, wherein the combined triggering and cocking system performs the cocking phase before the triggering phase.

4. The lancet device of claim 1, wherein the combined triggering and cocking system activates the cocking phase and the triggering phase using linear movement.

5. The lancet device of claim 1, wherein the combined triggering and cocking system comprises at least one push-button.

6. The lancet device of claim 1, wherein the combined triggering and cocking system comprises at least one push-button mounted to one of two opposite sides of the lancet device.

7. The lancet device of claim 1, wherein the combined triggering and cocking system comprises two push-buttons mounted to opposite sides of the lancet device.

8. The lancet device of claim 1, wherein the combined triggering and cocking system comprises a push-button biased towards an extended position.

9. The lancet device of claim 1, wherein the combined triggering and cocking system comprises at least one push-button biased towards an extended position and movable towards a central axis of the holding member.

10. The lancet device of claim 1, wherein the lancet device comprises a meter lancet device.

11. The lancet device of claim 1, wherein the lancet device comprises a blood glucose monitoring system.

12. The lancet device of claim 1, wherein the lancet device comprises a blood glucose meter.

13. The lancet device of claim 1, wherein the combined triggering and cocking system is prevented from moving back to an original position after the triggering phase.

14. The lancet device of claim 1, wherein the combined triggering and cocking system is prevented from moving back to an original position after the cocking phase.

15. The lancet device of claim 1, wherein the combined triggering and cocking system is prevented from moving back to an original position after the cocking and triggering phases.

16. The lancet device of claim 1, wherein at least one of:

the lancet device has an adjustable depth of penetration arrangement;

the lancet device is a single-use lancet device; and

the lancet device is a multiple-use lancet device.

17. The lancet device of claim 1, further comprising a front cover movably connected to one end of a body of the lancet device.

18. The lancet device of claim 1, further comprising a front cover removably connected to one end of a body of the lancet device.

19. The lancet device of claim 1, further comprising a front cover adjustably mounted to one end of a body of the lancet device.

20. The lancet device of claim 19, wherein the front cover adjusts a depth of penetration of the lancet needle.

21. The lancet device of claim 19, wherein the front cover comprises a one-piece plastic or synthetic resin member.

22. The lancet device of claim 19, wherein the front cover comprises an arrangement for guiding movement of the lancet.

23. The lancet device of claim 19, wherein the front cover comprises an arrangement for biasing the lancet away from the extended position.

24. The lancet device of claim 19, wherein the front cover comprises an arrangement limiting movement of the lancet towards the extended position.

25. The lancet device of claim 1, further comprising a first spring structured and arranged to cause movement of the holding member towards the extended position and a second spring structured and arranged to cause movement of the holding member away from the extended position.

26. The lancet device of claim 25, wherein the first spring is larger in diameter than the second spring.

27. The lancet device of claim 25, wherein the first spring is made from a wire having a larger diameter than a wire of the second spring.

28. The lancet device of claim 25, wherein each of the first and the second springs comprise helical compression springs.

29. The lancet device of claim 25, wherein the second spring has one end coupled to a portion of a removable front cap.

30. The lancet device of claim 25, wherein the second spring is removable with a front cap.

31. The lancet device of claim 1, further comprising a first spring structured and arranged to cause movement of the holding member towards the extended position, a second spring structured and arranged to cause movement of the holding member away from the extended position, and a third spring structured and arranged to resist movement of the combined triggering and cocking system.

32. The lancet device of claim 1, further comprising a first spring structured and arranged to cause movement of the holding member towards the extended position, a second spring structured and arranged to cause movement of the holding member away from the extended position, and a third spring structured and arranged to compress during activation of the combined triggering and cocking system.

33. The lancet device of claim 1, further comprising a first spring structured and arranged to cause movement of the holding member towards the extended position, a second spring structured and arranged to cause movement of the holding member away from the extended position, and a third spring structured and arranged to increase in potential energy upon manual movement of a push-button activating the combined triggering and cocking system.

34. The lancet device of claim 1, further comprising a biasing member structured and arranged to resist manual movement of the combined triggering and cocking system.

35. The lancet device of claim 1, further comprising a biasing member structured and arranged to increase in potential energy upon manual movement of a push-button that activates the combined triggering and cocking system.

36. The lancet device of claim 1, wherein the lancet device is structured and arranged to allow for replacement of the lancet and for multiple use.

37. The lancet device of claim 1, wherein the lancet is removably connected to the front end of the holding member.

38. The lancet device of claim 1, wherein the combined triggering and cocking system is arranged on a removable front cap.

39. The lancet device of claim 1, wherein the combined triggering and cocking system is arranged on a movably mounted front cap.

40. The lancet device of claim 1, wherein the combined triggering and cocking system is arranged on a front cap having the skin engaging end.

41. The lancet device of claim 1, wherein the holding member comprises a generally cylindrical cross-section.

42. The lancet device of claim 1, wherein the holding member comprises a generally polygonal cross-section.

43. The lancet device of claim 1, further comprising a fixed stop surface that is contacted by a movable stop surface of the holding member when the holding member moves to an extended position.

44. The lancet device of claim 1, wherein a front end of the holding member comprises an opening that is configured to removably receive the lancet.

45. The lancet device of claim 1, further comprising indicia arranged on at least one of an intermediate member and a body of the lancet device.

46. The lancet device of claim 45, wherein the indicia is arranged on an outer circumferential surface.

47. The lancet device of claim 1, further comprising a front cover that rotates about an axis that runs through the lancet opening and the holding member.

48. The lancet device of claim 1, wherein the lancet device comprises a two-piece body.

49. The lancet device of claim 1, wherein the lancet device comprises an ergonomic shape.

50. A method of puncturing a surface of skin using the lancet device of claim 1, the method comprising:

disposing the skin engaging end against a user'"'"'s skin; and

manually activating the combined triggering and cocking system to automatically cause triggering and/or substantially simultaneously cause triggering.

51. A method of puncturing a surface of skin using the lancet device of claim 1, the method comprising:

adjusting a set depth of penetration by rotating the intermediate member to a desired set position;

disposing the skin engaging end against a user'"'"'s skin; and

manually activating the combined triggering and cocking system.

52. A lancet device cap comprising:

a skin engaging end that includes a lancet opening through which a lancet needle may extend;

an arrangement for connecting or mounting the lancet device cap to at least one of a lancet device body and a meter; and

a manually activated combined triggering and cocking system structured and arranged to move a holding member and/or the lancet to a retracted position during a cocking phase and to cause the holding member and/or the lancet to move to an extended position during a triggering phase.

53. A blood glucose monitoring system comprising:

a meter;

a skin engaging end that includes a lancet opening through which a lancet needle may extend;

a movably mounted holding member configured to receive a lancet; and

a manually activated combined triggering and cocking system structured and arranged to move the holding member and/or the lancet to a retracted position during a cocking phase and to cause the holding member and/or the lancet to move to an extended position during a triggering phase.

54. A monitoring system comprising:

a meter;

an arrangement for adjusting depth of penetration;

a skin engaging end that includes a lancet opening through which a lancet needle may extend;

a combined triggering and cocking system structured and arranged to move the lancet to a retracted position during a cocking phase and to cause the lancet to move to an extended position during a triggering phase.

55. The system of claim 54, wherein the arrangement for adjusting depth of penetration comprises a front cap having the skin engaging end that includes a lancet opening through which a lancet needle may extend.

56. The system of claim 55, wherein the front cap comprises the combined triggering and cocking system.