Cap for a dermal tissue lancing device

• US 20070093863A1
• Filed: 10/20/2005
• Published: 04/26/2007
• Est. Priority Date: 10/20/2005
• Status: Abandoned Application

• Current Assignee: Lifescan Incorporated (Duv Holding Corporation)
• Original Assignee: Lifescan Incorporated (Duv Holding Corporation)
• Inventors: Pugh, Jerry
• Application Number:
  US11/256,334
• Publication Number:
  US 20070093863A1
• Time in Patent Office: Days
• US Class Current: 606/181
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150068 by tissue compression, e.g. with specially designed surface of device contacting the skin area to be pierced
• CPC Class Codes: A61B 5/150114 by tissue compression, e.g. with specially designed surface of device contacting the skin area to be pierced
• CPC Class Codes: A61B 5/150213 Venting means
• CPC Class Codes: A61B 5/151 Devices specially adapted for taking samples of capillary blood, e.g. by lancets , needles or blades

Abstract

A cap for a dermal tissue lancing device includes a cap body with a proximal end, a distal end and an opening along a cap body longitudinal axis. The proximal end is configured for engagement with the dermal tissue lancing device and the distal end is configured for contacting a dermal tissue target site. In addition, the distal end includes a deformable portion with a deformable distal compression surface, the distal compression surface having an outer rim that is furthermost from the longitudinal axis. Furthermore, when the distal end of the cap is contacted with and urged towards a dermal tissue target site, the outer rim of the distal compression surface of the deformable portion establishes initial contact with the dermal tissue target site and, thereafter, the deformable portion deforms such that the remainder of the deformable distal compression surface of the deformable portion contacts the dermal tissue target site.

Claims

1. A cap for a dermal tissue lancing device, the cap comprising:

a cap body with;

a proximal end configured for engagement with the dermal tissue lancing device;

a distal end for contacting a dermal tissue target site, the distal end including;

a deformable portion with a deformable distal compression surface; and

an opening through the cap body along a longitudinal axis of the cap body;

wherein the distal compression surface has an outer rim that is furthermost from the longitudinal axis; and

wherein, when the distal end of the cap is contacted with and urged towards a dermal tissue target site, the outer rim of the distal compression surface of the deformable portion establishes initial contact with the dermal tissue target site and, thereafter, the deformable portion deforms such that the remainder of the deformable distal compression surface of the deformable portion contacts the dermal tissue target site.

2. The cap of claim 1, wherein the distal end further includes a rigid portion with a rigid distal compression surface and wherein the deformable distal compression surface and rigid distal compression surface serve as a unified compression surface when the distal end is urged toward the dermal tissue target site.

3. The claim of claim 2, wherein the unified compression surface is concave with respect to a plane perpendicular to the longitudinal axis.

4. The cap of claim 2, wherein a gap is present between the rigid portion and the deformable portion, the gap serving to increase the deformability of the deformable portion during use of the cap.

5. The cap of claim 1 further including a rigid ring at least partially embedded within the deformable portion.

6. The cap of claim 1, wherein the deformable portion includes a hollow space configured to increase the deformability of the deformable portion during use of the cap.

7. The cap of claim 1, wherein the cap body includes at least one vent hole and wherein the deformable portion includes a deformable extension that overlies the vent holes, the deformable extension deforming during use of the cap to create a region of relatively low pressure between the deformable extension and the vent hole.

8. The cap of claim 1, wherein the deformable portion includes a rigid ring at least partially embedded therein and wherein, with the exception of the rigid ring, the cap body is formed entirely of a deformable material.

9. The cap of claim 1, wherein the deformable distal compression surface is flat.

10. The cap of claim 9, wherein the deformable distal compression surface is disposed at an angle in the range of about 25 degrees to about 75 degrees in relationship to a plane perpendicular to the longitudinal axis.

11. The cap of claim 1, wherein the deformable distal compression surface is concave.