Transfer unit for test elements

• US 8,057,156 B2
• Filed: 07/31/2008
• Issued: 11/15/2011
• Est. Priority Date: 08/02/2007
• Status: Expired due to Fees

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: List, Hans
• Primary Examiner(s): Sines; Brian J
• Assistant Examiner(s): Wecker; Jennifer
• Application Number:
  US12/183,731
• Publication Number:
  US 20090035120A1
• Time in Patent Office: 1,202 Days
• Field of Search: None
• US Class Current: 414/806
• CPC Class Codes: G01N 33/48757 Test elements dispensed from a stack

Abstract

The invention relates to an analysis apparatus with an analysis device for analyzing body fluids, and a magazine for test elements with a fresh supply container and a transfer unit that comprises a transfer element. At least one aperture for receiving a test element is formed in the circumferential surface of the transfer element. A waste container is provided in which used test elements are stored again after use.

Claims

1. A transfer unit for use with an analysis apparatus, comprising:

a supply container configured to store and release unused test elements;

a waste container configured to receive and store used test elements; and

a transfer element having a rounded surface defining an aperture configured to hold a test element, the transfer element having a work position in which the aperture is positioned between the supply container and the waste container, the transfer element being movable from the work position in a first direction to a receive position in which the aperture is aligned with the supply container, the transfer element being movable from the work position in a second direction to a dispense position in which the aperture is aligned with the waste container;

wherein the supply container, the waste container and the transfer element are component parts of a magazine removable from the analysis device.

2. The transfer unit of claim 1, wherein the transfer unit is a component of an analysis apparatus.

3. The transfer unit of claim 1, wherein the supply container comprises a movable sleeve configured to enclose test elements in a stack formation.

4. The transfer unit of claim 1, wherein the waste container at an open end thereof comprises a stripper element configured for removing a used test element from the work position.

5. The transfer unit of claim 4, wherein the stripper element extends into a recess formed on the rounded surface of the transfer element.

6. The transfer unit of claim 1, wherein the transfer element is pivotable about a pivot axle and is held in the work position by a spring.

7. The transfer unit of claim 6, wherein the spring comprises a torsion spring which provides a first torque against the movement of the transfer element in the first direction and a second torque against the movement of the transfer element in the second direction.

8. The transfer unit of claim 1, further comprising shape-memory actuators which drive the transfer element.

9. The transfer unit of claim 1, wherein the actuators open the supply container.

10. The transfer unit of claim 1, wherein the transfer element is automatically moved from the work position after a seal of the supply container has been removed from the rounded surface.

11. The transfer unit of claim 10, wherein the seal again contacts the rounded surface when the transfer element returns to the work position.

12. The transfer unit of claim 1, wherein the transfer element is moved about a pivot axle by at least one of an electric motor, magnet, lever mechanism, or cam mechanism.

13. A transfer unit for use with an analysis apparatus, comprising:

a supply container configured to store and release unused test elements;

a waste container configured to receive and store used test elements;

a rotatable transfer element having a rounded surface defining at least one aperture that is configured to receive a test element;

the transfer element having a work position in which the aperture is located between an opening of the supply container and an opening of the waste container, the transfer element being rotatable from the work position in a first direction against a first torque to a receiving position in which the aperture is aligned with an opening of the supply container, the transfer element being rotatable from the work position in a second direction against a second torque to a waste position in which the aperture is aligned with an opening of the waste container; and

a torsion spring which holds the transfer unit in the work position.

14. The transfer unit of claim 13, further comprising a first actuator wire connected to the transfer element and operable to rotate the transfer element from the work position to the position in which the aperture is aligned with the opening of the supply container.

15. The transfer unit of claim 14, further comprising a second actuator wire connected to the transfer element and operable to rotate the transfer element from the work position to the position in which the aperture is aligned with the opening of the waste container.

16. The transfer unit of claim 15, wherein the first and second actuator wires comprise shape-memory wires.

17. The transfer unit of claim 13, wherein the torsion spring supplies the first torque and the second torque.

18. The transfer unit of claim 13, wherein the supply container comprises a seal and a supply container spring which removably biases the seal against the rounded surface of the transfer unit.

19. The transfer unit of claim 18, further comprising a first lever connected to the supply container, actuation of the first lever moving the seal of the supply container away from the rounded surface of the transfer unit against the force of the supply container spring.

20. The transfer unit of claim 19, wherein the actuation of the first lever rotates the transfer element from the work position to the position in which the aperture is aligned with the opening of the supply container.

21. The transfer unit of claim 20, further comprising a first actuation wire connecting the first lever to the transfer element.

22. The transfer unit of claim 21, further comprising a second lever connected to the waste container, actuation of the second lever rotating the transfer element from the work position to the position in which the aperture is aligned with the opening of the waste container.

23. The transfer unit of claim 22, further comprising a second actuation wire connecting the second lever to the transfer element.