LANCING DEVICE

• US 20100234870A1
• Filed: 05/24/2010
• Published: 09/16/2010
• Est. Priority Date: 11/12/2003
• Status: Abandoned Application

• Current Assignee: Facet Technologies LLC
• Original Assignee: Facet Technologies LLC
• Inventors: RUF, Christopher J.
• Application Number:
  US12/785,906
• Publication Number:
  US 20100234870A1
• 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 5/150175 Adjustment of penetration depth
• CPC Class Codes: A61B 5/150198 Depth adjustment mechanism at the proximal end of the carrier of 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 5/150717 manually removed
• CPC Class Codes: A61B 5/150824 by visual feedback
• 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 5/15123 comprising magnets or solenoids
• CPC Class Codes: A61B 5/15125 comprising a vacuum or compressed fluids
• 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

Abstract

A lancing device for blood sampling, having a depth-adjustment mechanism including a chassis or throttle plate movable within a housing, and a lancet carrier mounted to the chassis or throttle plate. Repositioning the chassis or throttle plate within the housing varies the penetration depth of the lancet.

Claims

1. A lancing device comprising:

an external housing having a front end and a rear end, the front end defining an opening;

a chassis movable within the housing between an aft position toward the rear end of the housing and a forward position toward the front end of the housing;

a lancet carrier mounted to the chassis for engaging a lancet;

a drive mechanism for moving the lancet carrier relative to the chassis, along a lancing stroke; and

an adjustment member operable to selectively reposition the chassis between the aft position and the forward position, and thereby provide lancing depth adjustment, the aft position corresponding to a shallower lancing depth, and the forward position corresponding to a deeper lancing depth;

wherein the lancet carrier moves a constant lancing stroke distance relative to the chassis regardless of the positional adjustment of the chassis relative to the housing.

2. The lancing device of claim 1, wherein the adjustment member is rotationally actuated to move the chassis between the forward position and the aft position.

3. The lancing device of claim 1, wherein the drive mechanism comprises a drive spring and a return spring.

4. The lancing device of claim 3, wherein the drive spring and the return spring are arranged in an in-line configuration, coaxial with the lancing stroke of the drive mechanism.

5. The lancing device of claim 1, wherein the outer housing defines a fixed length between the front end and the rear end.

6. The lancing device of claim 1, wherein the adjustment member is a positioning screw having threads engaged with the housing, a first end coupled with the chassis, and a second end comprising an adjustment actuator.

7. A lancing device comprising:

an external housing having a front end and a rear end, the front end defining an lancet opening;

a chassis movable within the housing between an aft position spaced a first distance from the rear end of the housing and a forward position spaced a second distance from the rear end of the housing, the second distance being greater than the first distance;

a lancet carrier mounted to the chassis;

a drive mechanism operable between the chassis and the lancet carrier for moving the lancet carrier along a lancing stroke; and

an adjustment member operable between the external housing and the chassis to selectively reposition the chassis between the aft position and the forward position.

8. The lancing device of claim 7, wherein the lancet carrier moves a constant lancing stroke distance relative to the chassis regardless of the positional adjustment of the chassis relative to the housing.

9. The lancing device of claim 7, wherein the adjustment member is rotationally actuated to move the chassis between the forward position and the aft position.

10. The lancing device of claim 7, wherein the drive mechanism comprises a drive spring and a return spring.

11. The lancing device of claim 10, wherein the drive spring and the return spring are arranged in an in-line configuration, coaxial with the lancing stroke of the drive mechanism.

12. The lancing device of claim 7, wherein the outer housing defines a fixed length between the front end and the rear end.

13. The lancing device of claim 7, wherein the adjustment member is a positioning screw having threads engaged with the outer housing, a first end coupled with the chassis, and a second end comprising an adjustment actuator.

14. A lancing device comprising:

a housing having a front end and a rear end, the front end having a lancet opening therethrough;

a chassis repositionably mounted within the housing;

an adjustment member operable between the housing and the chassis to move the chassis between an aft position and a forward position, the aft position being closer to the rear end of the housing than the forward position;

a lancet carrier mounted to the chassis; and

a drive spring engaged between the chassis and the lancet carrier for propelling the lancet carrier along a lancing stroke.

15. The lancing device of claim 14, wherein the lancing stroke has a substantially constant stroke distance regardless of the position of the chassis within the housing.

16. The lancing device of claim 14, wherein the adjustment member is rotationally actuated to move the chassis between the forward position and the aft position.

17. The lancing device of claim 14, further comprising a return spring engaged between the chassis and the lancet carrier in opposition to the drive spring for retracting the lancet carrier along the lancing stroke.

18. The lancing device of claim 17, wherein the drive spring and the return spring are arranged in an in-line configuration, coaxial with the lancing stroke.

19. The lancing device of claim 14, wherein the outer housing defines a fixed length between the front end and the rear end.

20. The lancing device of claim 14, wherein the adjustment member is a positioning screw having threads engaged with the outer housing, a first end coupled with the chassis, and a second end comprising an adjustment actuator.