REUSABLE PIERCING AID AND METHOD FOR CARRYING OUT A PIERCING MOVEMENT BY MEANS OF A REUSABLE PIERCING AID

• US 20090012428A1
• Filed: 06/03/2008
• Published: 01/08/2009
• Est. Priority Date: 12/05/2005
• Status: Abandoned Application

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Kramer, Uwe, List, Hans, Keil, Michael, Hoenes, Joachim, Miltner, Karl
• Application Number:
  US12/132,372
• Publication Number:
  US 20090012428A1
• 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 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• 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 5/15125 comprising a vacuum or compressed fluids
• 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 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin

Abstract

The invention relates to a reusable piercing aid, containing a lancet, an energy store for transmission of energy stored in the energy store to the lancet in order to carry out a piercing movement, a charging device for charging the energy store, and a control unit, wherein the control unit is designed in such a way that, following the piercing movement, it controls the charging device such that, following the piercing movement, the energy store is automatically charged with energy for the next piercing movement of the lancet.

Claims

1. A reusable piercing aid, including:

a lancet,

an energy store for transmission of energy stored in the energy store to the lancet in order to carry out a piercing movement,

a charging device for charging the energy store, and

a control unit configured to control the charging device such that, following the piercing movement, the energy store is automatically charged with energy for the next piercing movement of the lancet.

2. The piercing aid of claim 1, wherein the energy store includes one of a spring, an electrical energy store and a pressure energy store.

13. The piercing aid of claim 2, wherein the charging device includes one of a motor coupled to the energy store, a controllable pump for compression of a gas, a pressure reservoir containing a gas and having a controllable valve, an accumulator with a controllable switch, and a battery with a controllable switch.

14. The piercing aid of claim 1, wherein the energy store is a coil spring.

15. The piercing aid of claim 1, further including a gear coupled between the charging device and the energy store.

16. The piercing aid of claim 1, further including a drive rotor coupled to the energy store, the drive rotor being configured to drive a lever coupled to the lancet to cause the lancet to carry out the piercing movement.

19. The method of claim 13, wherein the charging step includes the step of controlling a motor to impart energy to the spring.

20. The method of claim 19, wherein the controlling step includes the step of causing rotation of a gear coupled to the motor and the spring.

3. A method for carrying out a piercing movement by means of a reusable piercing aid with a lancet contained in the piercing aid, the piercing movement being effected by transmission of energy stored in an energy store to the lancet, the method including the step of:

controlling a charging device in such a way that, following the piercing movement, the charging device automatically charges the energy store with energy for the next piercing movement of the lancet.

4. The method of claim 3, wherein the piercing movement is effected by energy stored in a tensioned spring being transmitted to the lancet, the spring being tensioned again following the piercing movement.

5. The method of claim 3, wherein electrical energy stored in the energy store is transmitted to the lancet at least partially as kinetic energy for carrying out a piercing movement, and the energy store is charged with electrical energy following the piercing movement.

6. The method of claim 3, wherein the energy store contains a gas, and, following the piercing movement of the lancet, the energy store is charged with energy for the next piercing movement of the lancet by compression of the gas or gas mixture.

7. The method of claim 3, wherein the charging device includes a motor coupled to the energy store to provide the energy for charging the energy store.

8. The method of claim 7, wherein the motor additionally provides energy for a further system function, independent from the energy store, of an analysis system for analyzing a liquid sample.

9. The method of claim 7, wherein the motor drives a transport system that transports test elements to a sample collection position and to a measurement position.

10. The method of claim 3, wherein, when carrying out the piercing movement, the lancet emerges from a housing opening of the piercing aid onto which a body part is to be applied in order to create an opening in skin.

11. The method of claim 3, wherein, when carrying out the piercing movement, the lancet passes through a test element.

12. A method of operating a piercing aid with a lancet contained in the piercing aid, including the steps of:

transmitting energy stored in an energy store to cause the lancet to carry out a piercing movement, and

automatically charging the energy store following the piercing movement with energy for the next piercing movement of the lancet.

17. The method of claim 12, wherein the transmitting step includes the step of causing a drive rotor to rotate, thereby moving a lever that causes the lancet to carry out the piercing movement.

18. The method of claim 12, wherein the energy store is a spring.