LANCET WHEEL

• US 20090099477A1
• Filed: 09/23/2008
• Published: 04/16/2009
• Est. Priority Date: 10/15/2007
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: List, Hans, Hoenes, Joachim, Zimmer, Volker, Kraemer, Uwe, Hoerauf, Christian
• Granted Patent: US 8,152,741 B2
• Time in Patent Office: Days
• US Class Current: 600/583
• 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 5/150358 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 5/150419 comprising means for capillary action
• 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 5/15115 Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
• 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 5/15163 Characterized by propelling the piercing element in an axial direction relative to the disc
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

The invention is related to a lancet wheel (1) having a plurality of lancets (2) in a ring-shaped arrangement, the lancets (2) comprising a lancet body (4) that ends in a lancet tip (3). A lancet wheel (1) according to the invention has a carrier (5) that carries the lancets (2), whereby the lancets (2) are connected to the carrier (5) via bars (7, 7a, 7b, 7c) that allow for mobility of the lancets (2) relative to the carrier (5).

Claims

1. Lancet wheel with a plurality of lancets (2) in a ring-shaped arrangement, said lancets (2) comprising a lancet body (4) that ends in a lancet tip (3), characterized by a carrier (5) that carries the lancets (2), whereby the lancets (2) are connected to the carrier (5) via bars (7, 7a, 7b, 7c) that permit mobility of the lancets (2) relative to the carrier (5).

2. Lancet wheel according to claim 1, characterized in that the carrier is a frame (5) that surrounds the lancets (2).

3. Lancet wheel according to claim 1, characterized in that the bars (7, 7a, 7b, 7c) each extend in the longitudinal direction of the lancet (2) they connect to the carrier (5).

4. Lancet wheel according to claim 1, characterized in that the bars (7, 7a, 7b, 7c) extend, at least in part, along the lancet (2) they connect to the carrier (5).

5. Lancet wheel according to claim 1, characterized in that each lancet (2) is connected on both sides to the carrier (5) via at least one bar (7, 7a, 7b, 7c).

6. Lancet wheel according to claim 1, characterized in that the lancets (2) are connected on both sides to the carrier (5) via mutually concatenated bars (7a, 7b, 7c).

7. Lancet wheel according to claim 6, characterized in that the mutually concatenated bars (7a, 7b, 7c) connecting a lancet (2) to the carrier (5) are arranged longitudinally next to each other.

8. Lancet wheel according to claim 6, characterized in that at least one of the concatenated bars (7a, 7b, 7c) extends along the lancet body (4) beyond its end facing away from the lancet tip (3).

9. Lancet wheel according to claim 1, characterized in that the bars (7, 7a, 7b, 7c) are narrower than the lancet body (4).

10. Lancet wheel according to claim 1, characterized in that the lancet body (4) originates from a base (8), whereby the bars (7, 7a, 7b, 7c) connect the lancets (2) to the carrier (5) via the base (8).

11. Lancet wheel according to claim 1, characterized by test fields (10) for analysis of a body fluid sample.

12. Lancet wheel according to claim 11, characterized in that the test fields (10) are carried by spring arms (12) that are arranged between the lancets (2).

13. Puncturing system

having a lancet wheel (1) that comprises a plurality of lancets (2) in a ring-shaped arrangement, said lancets (2) comprising a lancet body (4) that ends in a lancet tip (3), and a frame (5) that carries the lancets (2), whereby the lancets (2) are connected to the frame (5) via bars (7, 7a, 7b, 7c) that allow for mobility of the lancets (2) relative to the frame (5),

having a swivel facility (27) for erecting the lancets (2) of the lancet wheel (1) for a puncture, and

having a puncturing drive (34) for moving an erected lancet (2) for a puncture.