Method for lancing a dermal tissue target site

• US 20070093864A1
• 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:
  US11/256,547
• Publication Number:
  US 20070093864A1
• 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 5/150068 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 method for lancing a dermal tissue target site includes contacting a deformable portion of a dermal tissue lancing device cap with the dermal tissue target site such that an outer rim of a deformable distal compression surface establishes initial contact with the dermal tissue target site. In addition, the aforementioned outer rim is furthermost from a longitudinal axis of the cap in comparison to the remainder of the deformable distal compression surface. Subsequently, the cap is urged towards the dermal tissue target site such that the deformable portion deforms and that the remainder of the deformable distal compression surface contacts the dermal tissue target site. The dermal tissue target site is then lanced with the dermal tissue lancing device.

Claims

1. A method for lancing a dermal tissue target site, the method comprising:

contacting a deformable portion of a dermal tissue lancing device cap with the dermal tissue target site such that an outer rim of a deformable distal compression surface of the deformable portion establishes initial contact with the dermal tissue target site, the outer rim being furthermost from a longitudinal axis of the cap in comparison to the remainder of the deformable distal compression surface;

urging the cap towards the dermal tissue target site such that the deformable portion deforms and that the remainder of the deformable distal compression surface contacts the dermal tissue target site; and

lancing the dermal tissue target site with the dermal tissue lancing device.

2. The method of claim 1, wherein the urging step creates a dermal tissue target site bulge within an opening of the cap and the lancing step includes lancing the dermal tissue target site bulge.

3. The method of claim 1, wherein a rigid ring is included in the deformable portion, and

wherein during the urging step, the rigid ring serves to maintain a circumference of the deformable distal compression surface.

4. The method of claim 1 further including the step of expressing a blood sample from the lanced dermal tissue target site.

5. The method of claim 1, wherein the urging step also urges a rigid distal compression surface of the cap against the dermal tissue target site.

6. The method of claim 5, wherein the urging step forms the deformable distal compression surface and the rigid distal compression surface into a unified compression surface in contact with the dermal tissue target site.

7. The method of claim 6, wherein the urging step forms the deformable distal compression surface and the rigid distal compression surface into a flat unified compression surface.

8. The method of claim 1, wherein the urging step creates a region of relatively low pressure between the deformable portion and a rigid portion of the dermal tissue lancing device cap.