Fluid sample transport devices and methods

• US 20070078313A1
• Filed: 09/30/2005
• Published: 04/05/2007
• Est. Priority Date: 09/30/2005
• Status: Active Grant

• Current Assignee: Intuity Medical, Inc.
• Original Assignee: Rosedale Medical Inc. (Intuity Medical, Inc.)
• Inventors: Escutia, Raul, Emery, Jeffrey, Jones, Jeffrey, Yee, Stephen
• Granted Patent: US 7,887,494 B2
• Time in Patent Office: Days
• US Class Current: 600/316
• 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 5/150213 Venting means
• 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 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• 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 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15163 Characterized by propelling the piercing element in an axial direction relative to the disc

Abstract

Arrangements are provided including a fluid transport tube, or a needle, having a first end and a second end opposite the first end, and a lumen having an inner diameter. At least one fluid transport enhancing projection is disposed in the lumen and extends from the second end toward the first end. A discreet, wearable blood glucose monitor including such arrangements is also described.

Claims

1. An arrangement comprising:

a needle comprising a first end and a second end opposite the first end, and a lumen having an inner diameter and a longitudinal length; and

at least one fluid transport enhancing projection extending 0-100% of the longitudinal length of the lumen of the needle and extending toward the first end.

2. The arrangement of claim 1, wherein the first end of the needle is constructed for piercing the skin.

3. The arrangement of claim 1, wherein the needle is formed from a metal, and the at least one projection is formed from a plastic or a metal.

4. The arrangement of claim 1, further comprising a base having a bore disposed therein extending from a first surface of the base through a second surface of the base, and at least the second end of the needle being received by the bore.

5. The arrangement of claim 4, wherein the bore extends beyond the second end of the needle.

6. The arrangement of claim 5, wherein the portion of the bore extending beyond the second end of the needle has an inner diameter that is substantially the same as the inner diameter of the lumen.

7. The arrangement of claim 4, wherein the second end of the needle is disposed such that it is substantially coplanar with the second surface.

8. The arrangement of claim 5, wherein the portion of the bore extending from the second end of the needle to the second surface comprises a fluid transport enhancing feature, the feature comprising at least one of a coating and a surface texture.

9. The arrangement of claim 1, wherein the at least one projection comprises an integral extension of the base.

10. The arrangement of claim 1, wherein the at least one projection comprises at least one wire.

11. The arrangement of claim 4, further comprising an analyte quantification member in fluid communication with the bore.

12. The arrangement of claim 11, wherein the quantification member is in direct fluid communication with the bore.

13. The arrangement of claim 11, wherein the quantification member comprises an assay pad containing a chemical reagent chosen to react with a predetermined analyte.

14. The arrangement of claim 12, further comprising a cover overlying the quantification member.

15. The arrangement of claim 14, wherein the cover is constructed to permit optical communication with the quantification member.

16. The arrangement of claim 4, further comprising at least one groove disposed in the second surface of the base and in fluid communication with the bore.

17. The arrangement of claim 8, further comprising at least one groove disposed in the portion of the bore extending from the second end of the needle to the second surface.

18. An integrated analyte detector device comprising the arrangement of claim 1.

19. The device of claim 18, wherein the device is configured to be wearable or handheld.

20. The device of claim 19, wherein the device is constructed to perform at least one blood glucose concentration measurement.

21. The device of claim 20, wherein the device is constructed to perform multiple blood glucose concentration measurements.

22. The device of claim 20, wherein the device comprises a disposable cartridge.

23. An arrangement comprising:

a base having a bore disposed therein extending from a first surface of the base through a second surface of the base;

a fluid transport tube having a first end, a second end opposite the first end, and a lumen having an inner diameter and a longitudinal length, at least the second end of the tube being received within the bore of the base;

at least one fluid transport enhancing projection extending 0-100% of the longitudinal length of the lumen of the tube and extending toward the first end; and

an analyte quantification member in fluid communication with the bore.

24. The arrangement of claim 23, wherein the fluid transport tube comprises a needle and the first end of the needle is constructed for piercing the skin.

25. The arrangement of claim 24, wherein the needle is formed from a metal, and the at least one projection is formed from a plastic or a metal.

26. The arrangement of claim 23, wherein the bore extends beyond the second end of the tube.

27. The arrangement of claim 26, wherein the portion of the bore extending beyond the second end of the needle has an inner diameter that is substantially the same as the inner diameter of the lumen.

28. The arrangement of claim 23, wherein the second end of the tube is disposed such that it is substantially coplanar with the second surface.

29. The arrangement of claim 26, wherein the portion of the bore extending from the second end of the tube to the second surface comprises a fluid transport enhancing feature, the feature comprising at least one of a coating and a surface texture.

30. The arrangement of claim 23, wherein the at least one projection comprises an integral extension of the base.

31. The arrangement of claim 23, wherein the at least one projection comprises at least one wire.

32. The arrangement of claim 23, wherein the quantification member is in direct fluid communication with the bore.

33. The arrangement of claim 23, wherein the quantification member comprises an assay pad containing a chemical reagent chosen to react with a predetermined analyte.

34. The arrangement of claim 23, further comprising a cover overlying the quantification member.

35. The arrangement of claim 23, wherein the cover is constructed to permit optical communication with the quantification member.

36. The arrangement of claim 23, further comprising at least one groove disposed in the second surface of the base and in fluid communication with the bore.

37. The arrangement of claim 26, further comprising at least one groove disposed in the portion of the bore extending from the second end of the needle to the second surface.

38. An integrated analyte detector device comprising the arrangement of claim 23.

39. The device of claim 38, wherein the device is configured to be wearable or handheld.

40. The device of claim 39, wherein the device is constructed to perform at least one blood glucose concentration measurement.

41. The device of claim 39, wherein the device is constructed to perform multiple blood glucose concentration measurements.

42. The device of claim 40, wherein the device comprises a disposable cartridge.