Puncturing system

• US 20100049092A1
• Filed: 10/12/2009
• Published: 02/25/2010
• Est. Priority Date: 04/12/2007
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Schoettle, Klaus, Harttig, Herbert, Konya, Ahmet
• Granted Patent: US 8,945,022 B2
• Time in Patent Office: Days
• US Class Current: 600/583
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• 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 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• 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 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• 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 5/15169 Characterized by a rolled strip
• CPC Class Codes: A61B 5/15171 Characterized by propelling the piercing element perpendicular to the direction of movement of the strip
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

A puncturing system for obtaining a sample of body fluid comprises at least one magazine that comprises a lancet carrier that carries several lancets, a puncturing device comprising a compartment for the magazine, an incremental advancing mechanism for moving the lancets successively to a puncturing position, and a puncturing drive for accelerating one of the lancets that is positioned in the puncturing position in a puncturing motion, wherein the magazine comprises a coupling facility with a receptacle for the lancet carrier, said receptacle being mobile with respect to a magazine housing, and wherein the lancets that are carried by the lancet carrier can be moved relative to the receptacle by actuating the incremental advancing mechanism, and wherein the receptacle is adapted to couple the puncturing drive to one of the lancets positioned in the puncturing position for transmitting a driving force generated by the puncturing drive during a puncture to the lancet positioned in the puncturing position.

Claims

1. A puncturing system for obtaining a sample of body fluid, the system comprising at least one magazine that comprises a lancet carrier that carries several lancets, and a puncturing device comprising a compartment for the magazine, an incremental advancing mechanism for moving the lancets successively to a puncturing position, and a puncturing drive for accelerating one of the lancets that is positioned in the puncturing position in a puncturing motion, wherein the magazine comprises a coupling facility with a receptacle for the lancet carrier, said receptacle being mobile with respect to a magazine housing, and wherein the lancets that are carried by the lancet carrier can be moved relative to the receptacle by actuating the incremental advancing mechanism, and wherein the receptacle is adapted to couple the puncturing drive to one of the lancets positioned in the puncturing position for transmitting a driving force generated by the puncturing drive during a puncture to the lancet positioned in the puncturing position.

2. The puncturing system of claim 1 wherein the lancet carrier is ribbon-shaped.

3. The puncturing system of claim 1 wherein the lancet carrier carries test fields for testing a sample of body fluid obtained from a puncturing wound, said test fields being arranged between the lancets.

4. The puncturing system of claim 1 wherein the coupling facility couples to the lancet carrier and moves it during a puncture in conjunction with one of the lancets that is positioned in the puncturing position.

5. The puncturing system of claim 4 wherein the coupling facility remains coupled to the lancet carrier during an actuation of the incremental advancing mechanism.

6. The puncturing system of claim 1 wherein the coupling facility remains coupled to the puncturing drive during an actuation of the incremental advancing mechanism.

7. The puncturing system of claim 1 wherein the coupling facility grasps the lancet carrier in a clamping manner during a puncture and releases it again after a puncturing and a returning motion are completed.

8. The puncturing system of claim 1 wherein the coupling facility comprises a spring element that effects a clamping force for clamping the lancet carrier.

9. The puncturing system of claim 1 wherein the coupling facility contacts the lancet carrier via a structured contact surface.

10. The puncturing system of claim 9 wherein the structured contact surface poses a resistance against a relative motion of the lancet carrier and the structured contact surface with respect to each other, whereby said resistance depends on the direction of the relative motion.

11. The puncturing system of claim 1 wherein the coupling facility contacts the lancet carrier via a contact surface that carries fibers that are inclined obliquely in the direction of a returning motion that is performed by one of the lancets after an advancing phase during a puncture.

12. The puncturing system of claim 11 wherein the contact surface poses a resistance against a relative motion of the lancet carrier and the contact surface with respect to each other, whereby said resistance depends on the direction of the relative motion.

13. The puncturing system of claim 1 wherein the lancets are oriented transverse to the longitudinal direction of the lancet carrier.

14. A magazine for a puncturing device for obtaining a sample of body fluid, the magazine comprising a lancet carrier that carries a plurality of lancets, wherein the magazine is adapted to be inserted into the puncturing device, and the puncturing device comprises a puncturing drive for accelerating the lancets in a puncturing motion, the magazine comprising a coupling facility for coupling the lancet carrier to the puncturing drive, the coupling facility comprising a receptacle for the lancet carrier, said receptacle being mobile with respect to a magazine housing, wherein the receptacle transmits a driving force to one of the lancets positioned in a puncturing position, said driving force being generated by the puncturing drive coupled to the receptacle during a puncture.

15. A puncturing device for obtaining a sample of body fluid, the puncturing device comprising a compartment for a magazine that comprises a lancet carrier that carries several lancets, an incremental advancing mechanism for positioning the lancets in a puncturing position in a sequential manner, and a puncturing drive for accelerating one of the lancets that is positioned in the puncturing position, wherein the puncturing drive is adapted to couple to the lancet carrier via a coupling facility of the magazine for accelerating one of the lancets that is positioned in the puncturing position for a puncture.