Multiple Tip Lancet

• US 20070250099A1
• Filed: 07/20/2005
• Published: 10/25/2007
• Est. Priority Date: 07/20/2004
• Status: Abandoned Application

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Flora, Bruce, Ruggiero, Joseph
• Application Number:
  US11/632,800
• Publication Number:
  US 20070250099A1
• Time in Patent Office: Days
• US Class Current: 606/181
• CPC Class Codes: A61B 17/06066 Needles, e.g. needle tip configurations making needles B21G1/00
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150282 for piercing elements, e.g. blade, lancet, canula, needle
• CPC Class Codes: A61B 5/150427 Specific tip design, e.g. for improved penetration characteristics
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• 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 5/150526 Curved or bent needles
• CPC Class Codes: A61B 5/150717 manually removed
• CPC Class Codes: A61B 5/150977 Arrays of piercing elements for simultaneous piercing
• CPC Class Codes: A61B 5/15105 Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
• CPC Class Codes: A61B 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit

Abstract

A lancet comprises a body and a shaft. The body has an end face and a bore. The shaft is secured to the body and extends through the bore such that a distal section of the shaft extends outwardly from the end face of the body. The distal section has an axial slot that extends through the distal end of the shaft to form a first and a second protrusion. The first and second protrusions each have a spike on the end thereof.

Claims

1. A lancet comprising:

a body having an end face and a bore; and

a shaft secured to said body and extending through said bore such that a distal section of said shaft extends outwardly from said end face, said distal section having an axial slot extending through a distal end of said shaft that forms a first and a second protrusion, said first and said second protrusions each having a spike.

2. The lancet of claim 1 further comprising a protective cap removably covering said first and said second protrusions.

3. The lancet of claim 2 wherein said first and said second protrusions are beveled so that a sharp point is formed on each of said spikes of said first and said second protrusions.

4. The lancet of claim 1 wherein said shaft is a stainless steel tube.

5. The lancet of claim 4 wherein said shaft is a hypodermic needle tube.

6. The lancet of claim 5 wherein said shaft is secured to said bore by an ultraviolet adhesive.

7. The lancet of claim 5 wherein said first and second protrusions are coated with a lubricant.

8. The lancet of claim 5 wherein said shaft is constructed from tubing sized from 25 gage to 29 gage.

9. A method of making a lancet comprising the acts of:

providing a shaft;

forming an axial slot in a distal end of said shaft so that a first protrusion and a second protrusion are formed;

beveling said first and said second protrusions so that said first and said second protrusions each have a spike;

providing a body with a bore; and

securing said shaft to said body so that said distal end of said shaft extends from said bore.

10. The method of claim 9 further comprising covering said first and said second protrusions with a removable protective cap.

11. The method of claim 9 further comprising coating said first and said second protrusions with a lubricant.

12. A lancet for use in a blood testing device comprising:

a body having an end face and a bore;

a shaft secured to said body and extending through said bore such that a distal section of said shaft extends outwardly from said end face, said distal section having an axial slot extending through a distal end of said shaft that forms a first and a second protrusion, said first and said second protrusions each having a spike capable of puncturing skin to obtain a drop of blood; and

a protective cap removably covering said first and said second protrusions.

13. A lancet comprising:

a body having an end face and a bore; and

a shaft secured to said body and extending through said bore, said shaft having a first end substantially aligned with a second end in a spaced apart configuration, said first and second ends being beveled such that a spike is formed on each said first and said second ends.

14. The lancet of claim 13 further comprising a protective cap removably covering said first and said second protrusions.

15. The lancet of claim 13 wherein said shaft is generally “

U”

-shaped.

16. A method of making a lancet comprising the acts of:

providing a shaft with a first end and a second end;

bending said shaft so as to align said first end of said shaft with said second end of said shaft in a spaced apart configuration;

beveling said first end to form a first spike on said first end;

beveling said second end to form a second spike on said second end;

providing a body having an end face; and

securing said shaft to said body so that said first end and said second end extend outwardly from said end face.

17. The method of claim 16 further comprising trimming said first end such that it is substantially the same length as said second end.

18. The method of claim 16 further comprising covering said first and said second spikes with a removable protective cap.

19. The method of claim 16 further comprising coating said first and said second spikes with a lubricant.

20. The method of claim 16 wherein during the act of bending said shaft, said shaft is bent to form a general “

U”

-shape.

21. The method of claim 16 wherein during the act of securing said shaft to said body, said body being molded around said shaft.

22. A method of using a lancet with a lancing device to sample blood glucose, the lancing device having an adjustable depth mechanism to control the depth of a puncture, the method comprising the acts of:

providing a lancet assembly, wherein the lancet assembly has a body including an end face and a bore, wherein the lancet assembly has a shaft, said shaft secured to said body and extending through said bore such that a distal section of said shaft extends outwardly from said end face, said distal section having an axial slot extending through a distal end of said shaft that forms a first and a second protrusion, said first and said second protrusions each having a spike capable of puncturing skin to obtain a drop of blood;

loading said lancet assembly into said lancing device;

adjusting said adjustable depth mechanism on said lancing device to a preselected value; and

activating said lancing device to drive said spikes into a patient'"'"'s skin to a depth proportional to said preselected value.