PUNCTURING SYSTEM AND TAPE CASSETTE

• US 20100198109A1
• Filed: 03/18/2010
• Published: 08/05/2010
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Harttig, Herbert
• Granted Patent: US 8,221,333 B2
• Time in Patent Office: Days
• US Class Current: 600/583
• 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 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15128 comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads comprising tooth-shaped elements A61B5/15132
• 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 5/15176 Stocking means comprising cap, cover, sheath or protection for aseptic stocking
• CPC Class Codes: A61B 5/15178 Stocking means comprising separate compartments or units for new and for used piercing elements separate compartments for used piercing elements in piercing devices A61B5/15184
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: Y10T 436/110833 Utilizing a moving indicator strip or tape

Abstract

The invention relates to a puncturing system with a support tape (1) that supports a plurality of lancets (2), a first reel (3) onto which the support tape (1) with unused lancets (2) is wound, a second reel (4) on which portions of the support tape with used lancets (2) are to be wound, a winding mechanism which, by turning the second reel (4), brings the lancets (2) supported by the support tape (1) to a position of use one after another and thus unwinds the support tape (1) from the first reel (3) and winds it onto the second reel (4), a puncturing drive mechanism (7) with which lancets (2) located in the position of use are accelerated in order to puncture the skin. According to the invention, the support tape (1) between the first and second reels (3, 4) is twisted only in one direction of rotation by at least a quarter turn, preferably by at least a half turn.

Claims

1. Puncturing system having

a carrier tape (1) carrying a plurality of lancets (2),

a first reel (3) on which the carrier tape (1) with unused lancets (2) is wound up,

a second reel (4) for winding up carrier tape portions with used lancets (2),

a reel drive (6) intended to rotate the second reel (4) and to thereby bring the lancets (2) carried by the carrier tape (1) successively into a position for use, and thereby to unwind the carrier tape (1) from the first reel (3) and to wind it up on the second reel (4),

a puncturing drive (7) for accelerating lancets (2), that are in the position for use, for a puncturing action,

characterized in that the carrier tape (1) is twisted between the first and the second reels (3, 4) only in one direction by at least one quarter turn, preferably by at least one half turn.

2. The puncturing system as defined in claim 1, characterized in that the position for use is located in the tape portion that has been twisted by a half turn so that the carrier tape (1) is twisted by a quarter turn on each side of the position for use.

3. The puncturing system as defined in claim 1, characterized in that the carrier tape (1) is guided between the two reels (3, 4) over at least one, preferably two tape guiding elements (14).

4. The puncturing system as defined in claim 3, characterized in that the carrier tape (1) is twisted by the half turn between two tape guiding elements (14).

5. The puncturing system as defined in claim 1, characterized in that the reel drive (6) and the puncturing drive (7) are part of a puncturing device (30) into which can be loaded a tape cassette (20), which contains the carrier tape (20) and the two reels (3, 4).

6. The puncturing system as defined in claim 1, characterized in that the lancets (2) are arranged transversely to the longitudinal direction of the carrier tape (1).

7. Tape cassette for use in a puncturing device (30), comprising

a carrier tape (1) that carries a plurality of lancets (2),

a first reel (3) on which the carrier tape (1) is wound up, and

a second reel (4), where the carrier tape (1) can be unwound from the first reel (3) and can be wound up on the second reel (4) by rotation of the second reel (4), characterized in that the carrier tape (1) is twisted between the first and the second reels (3, 4) only in one direction by at least one quarter turn, preferably by at least one half turn.

8. The tape cassette as defined in claim 7, characterized in that the carrier tape (1) carries test fields (24) for examination of samples of a body liquid, in addition to the lancets (2).

9. The tape cassette as defined in claim 7, characterized by an exit opening (22), through which the carrier tape (1) exits from a housing (21) of the tape cassette (20), and an entry opening (23) through which the carrier tape (1) enters again the housing (21) of the carrier tape (20), the carrier tape (1) being twisted by one half turn between the exit opening (22) and the entry opening (23).

10. The carrier tape as defined in claim 9 characterized in that the exit opening (22) is provided with a passage seal where the carrier tape (1) passes between the housing (21) of the tape cassette (20) and a sealing lip (26) fastened to a film (25) that covers the exit opening (22).