LANCING DEVICE AND MULTI-LANCET CARTRIDGE

• US 20080039887A1
• Filed: 10/23/2007
• Published: 02/14/2008
• Est. Priority Date: 11/12/2003
• Status: Abandoned Application

• Current Assignee: Tower Square Capital Partners (Barings LLC (Private Equity))
• Original Assignee: Facet Technologies LLC
• Inventors: VanHiel, Brian, CONWAY, William, LEUTZ, Brian, LIPOMA, Michael, LeVAUGHN, Richard, IRWIN, John, RUF, Christopher, ROBBINS, Avi, FLYNN, Stephen
• Application Number:
  US11/877,202
• Publication Number:
  US 20080039887A1
• Time in Patent Office: Days
• US Class Current: 606/182
• 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 5/15019 Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism mechanisms using distal end caps A61B5/150183, mechanisms at the piercing element carrier proximal end A61B5/150198
• CPC Class Codes: A61B 5/15029 for driving devices, i.e. means for driving the piercing element
• 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 5/150725 removal procedure linked to further actions, e.g. cocking of the piercing device, which indicate that the piercing device is used or tempered
• CPC Class Codes: A61B 5/150893 by indicating if used, tampered with, unsterile or defective
• CPC Class Codes: A61B 5/150916 by blocking components, e.g. piston, driving device or fluid passageway
• 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 5/15146 Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means. multiple simultaneous cutting or piercing A61B5/150977
• CPC Class Codes: A61B 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15161 Characterized by propelling the piercing element in a radial direction relative to the disc
• CPC Class Codes: A61B 5/15182 Means for keeping track or checking of the total number of piercing elements already used or the number of piercing elements still remaining in the stocking, e.g. by check window, counter, display

Abstract

A lancing device and a removable and replaceable multi-lancet cartridge for use in connection therewith are disclosed. The multi-lancet cartridge is advanced through sequential lancets, and anti-reverse features prevent reverse advancement of the cartridge. Interlocks are provided to prevent double-cocking the device, to reduce the likelihood of jamming of the mechanism. Improved trigger mechanisms and depth control mechanisms are provided.

Claims

1-25. -25. (canceled)

26. A lancing device for use with at least one lancet, comprising:

a housing having an internal portion and an external portion;

a drive member slidably disposed within the housing and adapted to engage the lancet, the drive member having a rearwardly extending arm with a barb projecting therefrom;

a elongated flexing arm coupled to the internal portion of the housing and having a release member configured to engage the barb when the drive member moves to a cocked position; and

an actuator button mounted to the flexing arm and configured to move the release member out of engagement with the barb when the actuator button is depressed by a user, wherein the drive member is thereby released from the cocked position.

27. The lancing device of claim 26, wherein the release member defines a channel having at least one sear surface, wherein the drive member extends through the channel to permit the barb to engage the sear surface when the drive member is in the cocked position.

28. The lancing device of claim 27, wherein the sear surface is moved out of engagement with the barb when the actuator button is depressed by the user.

29. The lancing device of claim 26, wherein the external portion of the housing includes a trigger aperture through which at least a portion of the actuator button projects for engagement by a user.

30. The lancing device of claim 26, wherein the flexing arm is in the form of a resilient cantilever extending from the internal portion of the housing, the flexing arm movable to position the release member into and out of a ready position in which the release member engages the barb.

31. The lancing device of claim 30 where the flexing arm resiliently urges the release member into the ready position when the actuator button is released by the user.

32. The lancing device of claim 26, wherein the release member comprises spaced apart sidewalls having planar surfaces that are parallel to a longitudinal axis of the housing and a cross member extending between the sidewalls and defining at least one surface that engages the barb.

33. A lancing device for use with at least one lancet, comprising:

a housing;

a movable cage disposed within the housing and including at least one sear surface;

a drive member slidably disposed within the cage and having a barb that engages the sear surface when the drive member is in a cocked position; and

a button mounted to the cage and configured to move the sear surface out of engagement with the barb when the button is depressed by the user, whereby the drive member is released to fire the lancing device.

34. The lancing device of claim 33, wherein the cage includes a body portion and a flexible member extending from the body portion, the flexible member forming a shutter that receives the drive member and defines the sear surface.

35. The lancing device of claim 34, wherein the flexible member resiliently urges the sear surface into engagement with the barb when the driver is in the cocked position.

36. The lancing device of claim 33, wherein the drive member includes an arm projecting therefrom in a direction parallel to the longitudinal axis of the housing, and wherein the barb extends from the arm to engage the sear surface.

37. The lancing device of claim 33, further comprising a housing that contains the cage and the drive member, wherein the housing includes a trigger aperture through which at least a portion of the button extends.

38. The lancing device of claim 33, wherein the drive member is adapted to releasably engage the lancet.

39. A lancing device for use with at least one lancet having a needle terminating in a sharp tip, comprising:

a housing having a longitudinal axis and a piercing aperture;

a drive mechanism disposed within the housing to project the sharp tip of the lancet through the piercing aperture, the drive mechanism including a drive member movable along the longitudinal axis of the housing between at least a rearward cocked position and a forward firing position; and

a drive spring coupled to the drive member to urge the drive member forward when the drive member is in the rearward cocked position;

an elongated arm extending from the drive member in a direction parallel to the longitudinal axis of the housing, the elongated arm having a barb projecting therefrom;

a member fixed within the housing and having a flexing arm extending therefrom, the flexing arm including near its distal end a release member defining a channel through which the elongated arm of the drive mechanism extends, the release member configured to engage the barb when the drive member moves to the cocked position; and

a button mounted to the flexing arm and configured to move the release member out of engagement with the barb when the button is depressed by a user, wherein the drive member is thereby released from the docked position to fire the lancing device.

40. The lancing device of claim 39, wherein the release member defines a channel having at least one cross member extending perpendicular to the longitudinal axis of the housing, wherein the drive member extends through the channel to permit the barb to engage the cross member when the drive member is in the cocked position.

41. The lancing device of claim 40, wherein the cross member is moved out of engagement with the barb when the button is depressed by the user.

42. The lancing device of claim 39, wherein the housing includes a trigger button aperture through which at least a portion of the button projects for engagement by the user.

43. The lancing device of claim 39, wherein the flexing arm is in the form of a resilient cantilever extending from the member, and the flexing arm urges the release member into engagement with the barb.

44. The lancing device of claim 39, wherein the release member comprises spaced apart sidewalls having planar surfaces that are parallel to a longitudinal axis of the housing and a cross member extending between the sidewalls and defining at least one surface that engages the barb.