Needle for body fluid tester

• US 20040236249A1
• Filed: 06/29/2004
• Published: 11/25/2004
• Est. Priority Date: 02/04/1999
• Status: Abandoned Application

• Current Assignee: Integ Incorporated (Johnson & Johnson)
• Original Assignee: Integ Incorporated (Johnson & Johnson)
• Inventors: Hilgers, Michael Edward, Schmidt, Bruno J.
• Application Number:
  US10/880,700
• Publication Number:
  US 20040236249A1
• Time in Patent Office: Days
• US Class Current: 600/576
• CPC Class Codes: A61B 10/0045 Devices for taking samples of body liquids devices for taking blood samples A61B5/15
• CPC Class Codes: A61B 2010/008 Interstitial fluid

Abstract

An apparatus for collecting a body fluid for testing for an analyte includes a needle for penetrating a patient'"'"'s skin to access the fluid within the skin. The needle has a hollow body extending from a first end to a second end. An interior surface of the body defines a fluid pathway extending between the ends. The second end is positioned to deposit fluid for testing. The first end has a beveled face on a front side of the body. The beveled face terminates at a penetration tip with the beveled face having an opening in communication with the fluid pathway. The penetration tip is burnished to a rounded shape and bent to facilitate low pain and rapid fluid collection.

Claims

1-11. -11. (Cancelled)

12. A method for collecting a sample of interstitial fluid from a patient, said method comprising:

providing a needle having a hollow body extending from a first end to a second end with a fluid pathway extending between said ends, said first end configured to penetrate said skin and comprising a beveled face on a front side of said body, an opening within said beveled face in communication with said fluid pathway, and a bend formed on said front side and positioned on said beveled face;

penetrating said first end into and through the dermis of the skin;

accessing interstitial fluid at said opening; and

transporting said interstitial fluid through said hollow body.

13. The method of claim 12, further comprising positioning said second end to deposit fluid for testing.

14. The method of claim 13, further comprising absorbing said deposited fluid onto a membrane.

15. The method of claim 13, wherein said testing is selected from the group consisting of calorimetric testing and electrochemical testing.

16. The method of claim 12, further comprising pressurizing an area about the penetration site of the needle wherein said accessing of interstitial fluid is facilitated.