Blood collection system

• US 20060282109A1
• Filed: 04/28/2004
• Published: 12/14/2006
• Est. Priority Date: 06/13/2003
• Status: Abandoned Application

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Rasch-Mengens, Juergen, Jansen, Paul
• Application Number:
  US10/560,226
• Publication Number:
  US 20060282109A1
• 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 5/150312 Sterilisation of piercing elements, piercing devices or sampling devices piercing element stocking means, e.g. cartridges, A61B5/15176
• 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 5/15107 Piercing being assisted by a triggering mechanism
• CPC Class Codes: A61B 5/15146 Devices loaded with multiple lancets simultaneously, e.g. for serial firing without reloading, for example by use of stocking means. multiple simultaneous cutting or piercing A61B5/150977
• CPC Class Codes: A61B 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15174 Piercing elements stocked in the form of a stack or pile

Abstract

In order to be able to reuse the lancets (5) that are stored in a lancet storage container (6) and used in a blood withdrawal system for taking a blood sample for analytical and diagnostic purposes, and in order to reduce the time period elapsing until the puncturing motion is performed, it is proposed to provide a lancet tip protective element (13) in a parking position of the lancets (5) by means of which the lancet tip is protected mechanically and hygienically.

Claims

1. A blood withdrawal system for collecting blood for analytical or diagnostic purposes, comprising:

a housing with an exit opening for the lancet tip of the lancet needle of a lancet that can be is moved in the housing along a predetermined puncturing path,

a lancet guide which guides the lancet along the predetermined puncturing path,

a lancet drive which drives the lancet along the predetermined puncturing path in the puncturing direction until its tip, is in a puncturing position,

a lancet storage container arranged in the housing and in which a plurality of lancets stored at a removal position for removal from the lancet storage container,

a lancet tip protective element, into which the lancet tip can be inserted before or after a puncturing motion, whereby the protective element mechanically and hygienically protects a lancet tip that is inserted therein, and

the lancet tip protective element being arranged on the lancet tip in a parking position of the lancets, the parking position not coinciding with the removal position or the puncturing position.

2. The blood withdrawal system of claim 1, wherein the lancet tip protective element and the parking position are arranged proximate the exit opening.

3. The blood withdrawal system of claim 1, wherein the lancet tip protective element is stationary in the housing.

4. The blood withdrawal system of claim 1, wherein the lancet tip protective element is adapted to be driven onto the lancet tip.

5. The blood withdrawal system of claim 1, wherein the lancet can be driven by the lancet drive into the parking position, in which the lancet tip is situated in the lancet tip protective element.

6. The blood withdrawal system of claim 1, further comprising a holding facility for holding the lancet in the parking position.

7. The blood withdrawal system of claim 1, wherein the lancet tip protective element is arranged such that the lancet tip can be inserted into the lancet tip protective element by a motion that proceeds parallel to the puncturing motion.

8. The blood withdrawal system of claim 1, wherein the lancet tip protective element is arranged in the lancet storage container+.

9. The blood withdrawal system of claim 1, wherein the lancet tip protective element comprises an elastic material into which the lancet tip can be inserted.

10. The Bleed blood withdrawal system of claim 1, characterized in that the lancet tip protective element comprises a sterilizing, microbicidal, inactivating, disinfecting, bactericidal or fungicidal material for cleaning or protecting the lancet tip.

11. The blood withdrawal system of claim 9, wherein the elastic material comprises a sterilizing, microbicidal, inactivating, disinfecting, bactericidal or fungicidal material for cleaning or protecting the lancet tip.

12. The blood withdrawal system of claim 9, wherein the elastic material comprises a cover made of an absorbent material.

13. The blood withdrawal system of claim 1, wherein the lancet tip protective element is replaceable.

14. The blood withdrawal system of claim 1, wherein a lancet can be used repeatedly to collect multiple blood samples and can be driven into the lancet tip protective element between puncturing motions.

15. The blood withdrawal system of claim 1, further comprising operating elements the user can use to set whether a new lancet from the lancet storage container or a lancet from the parking position in the lancet tip protective element that was used previously for taking a blood sample is used for the subsequent blood taking process.

16. The blood withdrawal system of claim 1, further comprising a test element cartridge.

17. A blood analysis device, comprising a blood withdrawal system according to claims 1.

18. A method for drawing a blood sample with a blood withdrawal system comprising a housing with an exit opening for the lancet tip of the lancet needle of a lancet that is moved in the housing along a predetermined puncturing path and a lancet guide which guides the lancet along the predetermined puncturing path, a lancet drive which drives the lancet in the puncturing direction, and a lancet storage container that is arranged in the housing and in which a plurality of lancets is stored at a removal position for removal from the lancet storage container, the method comprising, inserting the lancet tip into a lancet tip protective element before or after a puncturing motion, whereby the protective element mechanically and hygienically protects a lancet tip that is inserted therein, and arranging the lancet tip protective element on the lancet tip in a parking position of the lancets, whereby the parking position does not coincide with the removal position and the puncturing position.

19. The method of claim 18, wherein the lancet tip protective element and the parking position are arranged proximate the exit opening.

20. The method of claim 18, wherein the lancet tip protective element is stationary in the housing.

21. The method of claim 18 further comprising driving the lancet tip protective element onto the lancet tip.

22. The method of claim 18 further comprising driving the lancet into the parking position, in which the lancet tip is situated in the lancet tip protective element.

23. The method of claim 18, further comprising holding the lancet in the parking position by a holding facility.

24. The method of claim 18, further comprising arranging the lancet tip protective element such that the lancet tip is inserted into the lancet tip protective element by a motion that proceeds parallel to the puncturing motion.

25. The method of claim 18, further comprising transporting a lancet that was used to perform a puncturing motion to the lancet storage container.

26. The method of claim 25, further comprising inserting the used lancet into a lancet tip protective element before transporting it back to the lancet storage container and placing it in the parking position.

27. The method of claim 18, further comprising replacing the lancet storage container.

28. The method of claim 18, wherein a lancet is used to take a multiple blood samples and is driven into the lancet tip protective element between the puncturing motions.