Puncturing system and lancet carrier tape

• US 9,480,420 B2
• Filed: 11/10/2009
• Issued: 11/01/2016
• Est. Priority Date: 05/10/2007
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: List, Hans, Schlothauer, Marcus, Konya, Ahmet, Kuhr, Hans-Juergen, Deck, Frank, Keil, Michael, Hoerauf, Christian, Weiss, Thomas
• Primary Examiner(s): Severson, Ryan J
• Assistant Examiner(s): DANG, ANH TIEU
• Application Number:
  US12/615,563
• Publication Number:
  US 20100145376A1
• Time in Patent Office: 2,548 Days
• Field of Search: 606/181, 606/182, 606/183, 600/583, 600/573, 604207-211
• US Class Current: 1/1
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• 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 5/15107 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 5/15169 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 5/15178 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 5/1518 Security or safety mechanism to be deactivated for forwarding next piercing element

Abstract

A puncturing system has a carrier tape carrying multiple lancets, a device housing comprising a conveying facility for moving the lancets into a usage position consecutively by moving the carrier tape in a conveying direction, a puncturing drive for accelerating one of the lancets that is positioned in the usage position in a puncturing motion, an opening in the device housing for touching against a body part in which a puncture is to be made by the puncturing motion of one of the lancets, an actuation facility for driving the conveying facility, and an unlockable interlock comprising a stop that blocks further transport of the carrier tape as soon as one of the lancets has reached the usage position.

Claims

1. A puncturing system comprising:

a carrier tape that carries multiple lancets, wherein each of the lancets are positioned such that a longitudinal direction of the lancet is transverse to a longitudinal direction of the carrier tape at a point of attachment of the lancet,

a device housing comprising a conveying facility for moving the lancets into a usage position consecutively by moving the carrier tape in a conveying direction,

a puncturing drive for accelerating one of the lancets that is positioned in the usage position in a puncturing motion,

an opening in the device housing for touching against a body part in which a puncture is to be made by the puncturing motion of one of the lancets,

an actuation facility for driving the conveying facility, the actuation facility comprising a substantially linear gear rack directly engaging a gearwheel and a counting wheel, the gearwheel and the counting wheel completely enclosed within the device housing; and

an unlockable interlock comprising a stop that blocks further transport of the carrier tape as soon as one of the lancets has reached the usage position and

a slipping clutch which couples the actuation facility to the conveying facility.

2. The puncturing system of claim 1 wherein the unlockable interlock can be unlocked by actuating the actuation facility.

3. The puncturing system of claim 1 wherein the puncturing drive includes an energy storage that supplies the energy required for the puncturing motion and is coupled to the actuation facility such that the energy storage is charged by actuating the actuation facility.

4. The puncturing system of claim 1 wherein the unlockable interlock comprises an interlocking element that acts in conjunction with one of the lancets that is in the usage position.

5. The puncturing system of claim 4 wherein the interlocking element acts in conjunction with one of the lancets that is in the usage position in a form-fitting manner.

6. The puncturing system of claim 5 wherein the interlocking element comprises a stop surface against which one of the lancets abuts in the usage position.

7. The puncturing system of claim 4 wherein the interlocking element comprises a stop surface against which one of the lancets abuts in the usage position.

8. The puncturing system of claim 1 wherein the unlockable interlock can be switched from an interlocking position, in which further transport of the carrier tape is blocked, to a pass-through position, in which the carrier tape can be transported further, by an actuator that is coupled to the actuation facility.

9. The puncturing system of claim 8 wherein the actuator is coupled to the actuation facility by a cam control.

10. The puncturing system of claim 1 wherein the puncturing drive comprises a coupling head that has a gap through which the carrier tape is guided, whereby the unlockable interlock forms a constriction of the gap.

11. The puncturing system of claim 1 wherein the counting wheel is coupled to the carrier tape and rotates upon a motion of the carrier tape that is effected by the conveying facility, to measure a distance traveled by the carrier tape, and is blocked as soon as the distance has reached the length required to position one of the lancets in the usage position.

12. The puncturing system of claim 1 wherein the substantially linear gear rack is shifted in its longitudinal direction by a user in order to actuate the conveying facility.

13. The puncturing system of claim 1 wherein the conveying facility comprises a moving spring.

14. The puncturing system of claim 1 wherein the actuation facility is coupled to the conveying facility by a free-wheel module.

15. The puncturing system of claim 1, the slipping clutch acting between the gearwheel and a reeling facility, the slipping clutch comprising an outer shaft and an inner shaft, the outer shaft having a cam on an inner side against which an inner helical spring moves.

16. A puncturing system comprising:

a carrier tape that carries multiple lancets, wherein each of the lancets are positioned such that a longitudinal direction of the lancet is transverse to a longitudinal direction of the carrier tape at a point of attachment of the lancet,

a device housing comprising a conveying facility for moving the lancets into a usage position consecutively by moving the carrier tape in a conveying direction,

a puncturing drive for accelerating one of the lancets that is positioned in the usage position in a puncturing motion,

an opening in the device housing for touching against a body part in which a puncture is to be made by the puncturing motion of one of the lancets,

an actuation facility for driving the conveying facility, the actuation facility comprising a substantially linear gear rack directly engaging a gearwheel and a counting wheel, the gearwheel and the counting wheel completely enclosed within the device housing; and

an unlockable interlock comprising a stop that blocks further transport of the carrier tape as soon as one of the lancets has reached the usage position, wherein the interlock comprises an interlocking element that acts in conjunction with one of the lancets that is in the usage position.