Lancing device with dampener

• US 20070173875A1
• Filed: 03/31/2006
• Published: 07/26/2007
• Est. Priority Date: 01/20/2006
• Status: Abandoned Application

• Current Assignee: Lifescan Incorporated (Duv Holding Corporation)
• Original Assignee: Lifescan Incorporated (Duv Holding Corporation)
• Inventors: Uschold, Robert
• Application Number:
  US11/395,757
• Publication Number:
  US 20070173875A1
• Time in Patent Office: Days
• US Class Current: 606/181
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150152 by an adequate mechanical impact on the puncturing location
• 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 5/15113 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 5/1519 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

Abstract

A lancing device includes a housing, a moveable lancet holder configured to hold a lancet, a launching mechanism, a depth stop with a depth stop surface, and a dampener for dampening at least one of sound and vibration during lancing. The moveable lancet holder includes a lancet holder depth stop interface surface. In addition, the moveable lancet holder and launching mechanism are operatively connected to lance a target site with the lancet and the dampener is disposed between the lancet holder depth stop interface surface and the depth stop surface. Forward movement of the moveable lancet holder during lancing of a target site is stopped by engagement between the lancet holder depth stop interface surface, the dampener and the depth stop interface surface.

Claims

1. A lancing device comprising:

a housing;

a moveable lancet holder disposed at least partially within the housing and configured to hold a lancet, the moveable lancet holder including a lancet holder first depth stop interface surface;

a launching mechanism;

a depth stop disposed at least partially within the housing, the depth stop including a depth stop interface surface; and

a dampener for dampening at least one of sound and vibration during lancing, the dampener disposed between the first lancet holder depth stop interface surface and the depth stop interface surface,

wherein the moveable lancet holder and launching mechanism are operatively connected to lance a target site with the lancet; and

wherein movement of the moveable lancet holder during lancing of a target site is stopped by engagement between the lancet holder first depth stop interface, the dampener and the depth stop interface surface.

2. The lancing device of claim 1, wherein the dampener is made of an elastomeric material.

3. The lancing device of claim 1, wherein the dampener is an elastomeric o-ring.

4. The lancing device of claim 1, wherein the dampener is formed of a visco-elastic polymer.

5. The lancing device of claim 1, wherein the dampener has a Shore A scale durometer in the range of 60 to 80.

6. The lancing device of claim 1, wherein the dampener decelerates a velocity of the moveable lancet holder prior stopping the movement.

7. The lancing device of claim 6, wherein the dampener decelerates the velocity for a duration of approximately 300 microseconds.

8. The lancing device of claim 1 further including a lancet holder second depth stop interface, and

wherein movement of the moveable lancet holder is decelerated by engagement of the dampener, lancet holder first depth stop interface surface and depth stop interface surface, and

wherein movement of the moveable lancet holder is stopped by engagement of the dampener, lancet holder first depth stop interface surface and depth stop interface surface in combination with engagement of the lancet holder second depth stop interface surface and the depth stop interface surface.

9. The lancing device of claim 8, wherein the dampener decelerates the velocity for a duration of approximately 300 microseconds.

10. The lancing device of claim 1, wherein the dampener is retained on the moveable lancet holder.