Test element magazine

• US 20100092338A1
• Filed: 11/20/2009
• Published: 04/15/2010
• Est. Priority Date: 05/29/2007
• Status: Abandoned Application

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: List, Hans, Haar, Hans-Peter, Meacham, George Bevan Kirby
• Application Number:
  US12/622,595
• Publication Number:
  US 20100092338A1
• Time in Patent Office: Days
• US Class Current: 422/400
• CPC Class Codes: A61B 2562/242 Packaging, i.e. for packaging the sensor or apparatus before use
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• 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 5/150419 comprising means for capillary action
• 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 5/15146 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 5/15151 Each piercing element being stocked in a separate isolated compartment
• CPC Class Codes: A61B 5/15161 Characterized by propelling the piercing element in a radial direction relative to the disc
• CPC Class Codes: A61B 5/15176 Stocking means comprising cap, cover, sheath or protection for aseptic stocking

Abstract

A test element magazine for a system for measuring the concentration of at least one constituent in a fluid sample is provided. The test element magazine comprises at least one test element in at least one chamber. The chamber is individually sealed by a sealing element. The test element comprises at least one active portion for contacting a skin portion of a patient and/or for contacting a fluid sample, wherein the test element further comprises at least one support body, wherein the support body is adapted for being engaged by an actuator. By a forward movement of the test element the support body of the test element applies a force to the sealing element, thereby forcing open the sealing of the chamber.

Claims

1. A test element magazine, the test element magazine comprising at least one test element in at least one chamber, wherein:

the at least one chamber is individually sealed by a sealing element;

the at least one test element comprises at least one active portion for contacting a skin portion of a patient and/or for contacting a fluid sample; and

the at least one test element further comprises at least one support body, wherein the at least one support body is engaged by an actuator for effecting a lancing movement of the at least one test element or for performing a sampling motion, wherein by a forward movement of the at least one test element, the at least one support body of the at least one test element applies a force to the sealing element that forces open the sealing of the at least one chamber.

2. The test element magazine according to claim 1, wherein the at least one chamber comprises a constricted portion, the at least one chamber is dimensioned such that by forcing the at least one support body of the at least one test element into the constricted portion of the at least one chamber, a force is applied to the sealing element forcing open the sealing of the at least one chamber.

3. The test element magazine according to claim 2, wherein the constricted portion comprises at least one constriction element, the at least one construction element being a ramp, a cam protruding into the at least one chamber, a projection protruding into the at least one chamber, a shoulder protruding into the at least one chamber or combinations thereof.

4. The test element magazine according to claim 3, wherein the at least one constriction element is formed by a magazine body.

5. The test element magazine according to claim 4, wherein the magazine body is formed by a molded plastic element.

6. The test element magazine according to claim 1, wherein the sealing element comprises at least one lid portion that at least partially covers the at least one chamber.

7. The test element magazine according to claim 6, wherein the sealing element further comprises at least one sealing support, wherein the at least one lid portion is connected to the at least one sealing support by a hinge.

8. The test element magazine according to claim 7, further comprising a gap between the at least one sealing support and the at least one lid portion that is covered by a foil or membrane element.

9. The test element magazine according to claim 8, wherein the foil or membrane element is comprised of an aluminum foil, a copper foil, a polymer foil, a polyethylene foil, a polyethylene terephtalate foil, a fluorinated polyethylene foil, a metal-coated polymer foil, a polymer foil coated with an inorganic barrier material, a metal foil coated with silicon dioxide, or combinations thereof.

10. The test element magazine according to claim 6, wherein the at least one lid portion is a substantially rectangular shape, a lamellar shape, a shape of a piece of pie, or a bottle shape.

11. The test element magazine according to claim 6, further comprising an opening covered by the at least one lid portion that is narrower than the at least one test element width such that a perimeter of door openings restrains and guides the at least one test element when the at least one lid portion is in an open position.

12. The test element magazine according to claim 1, wherein the at least one chamber is dimensioned such that the at least one active portion of the at least one test element does not touch the sealing element during the process in which the body of the at least one test element forces open the sealing.

13. The test element magazine according to claim 1, wherein the test element magazine is a disk magazine.

14. The test element magazine according to claim 13, wherein a plurality of test elements are arranged radially in individual chambers, with the active portions of the test elements pointing outwards.

15. The test element magazine according to claim 13, wherein the disk magazine has an substantially circular shape.

16. The test element magazine according to claim 1, further comprises,

a disk body, wherein the sealing element at least partially covers the disk body.

17. The test element magazine according to claim 16, wherein the disk body comprises a molded plastic element.

18. The test element magazine according to claim 1, wherein the at least one active portion of the at least one test element comprises a lancet, an analytical test portion for detecting a constituent in a fluid sample, or combinations thereof.

19. The test element magazine according to claim 18, wherein the at least one test element comprises a capillary element for sampling a fluid sample.

20. The test element magazine according to claim 18, wherein the at least one test element comprises a coating.

21. The test element magazine according to claim 20, wherein the coating comprises a hydrophilic surface.

22. The test element magazine according to claim 1, wherein the at least one test element further comprises a substance that changes at least one chemical or physical property as a function of a concentration of the constituent in the fluid when bringing the fluid in contact with the substance.

23. The test element magazine according to claim 22, wherein the at least one chemical or physical property comprises an optical property.

24. The test element magazine according to claim 22, wherein the at least one chemical or physical property comprises an electrochemical property.

25. The test element magazine according to claim 1, wherein a part of the at least one support body of the at least one test element comprises a sealing portion, wherein the sealing portion forms part of the sealing of the at least one chamber.

26. The test element magazine according to claim 25, wherein a sterile part of the at least one test element is located inside the at least one chamber, and wherein an engagement portion of the at least one test element is located outside the at least one chamber.

27. A test system for measuring the concentration of at least one constituent in a fluid sample, the test system comprising:

a test element magazine according to claim 1; and

at least one actuator comprising an engagement portion for engaging a test element of the test element magazine.

28. The test system according to claim 27, wherein the actuator forces the support body of the test element into a constricted portion of the chamber forcing open the sealing of the chamber.

29. The test system according to claim 27, wherein the actuator forces apart at least part of the support body of the test element, thereby enlarging the width of the support body, thereby forcing open the sealing of the chamber.

30. The test system according to claim 27, wherein the engagement portion comprises an optical port for optically contacting the test element.

31. The test system according to claim 27, wherein the engagement portion comprises an electrical port for electrically contacting the test element.