TEST MEDIA CASSETTE FOR BODILY FLUID TESTING DEVICE

• US 20120226116A1
• Filed: 05/08/2012
• Published: 09/06/2012
• Est. Priority Date: 06/08/2001
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: Roe, Jeffrey N., Roe, Steven N.
• Granted Patent: US 8,986,223 B2
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 10/0045 Devices for taking samples of body liquids devices for taking blood samples A61B5/15
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157 disposable multilayered or laminated electrodes G01N27/307; details of handling chemical test elements G01N33/4875
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150099 by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
• 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 5/150473 Double-ended needles, e.g. used with pre-evacuated sampling tubes 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 5/150503 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 5/150633 Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
• CPC Class Codes: A61B 5/150702 fully automatically removed, i.e. the removing does not require any action by the user
• CPC Class Codes: A61B 5/150717 manually removed
• 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 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: G01N 2001/028 Sampling from a surface, swabbing, vaporising
• CPC Class Codes: G01N 2035/00019 cassette structures
• CPC Class Codes: G01N 33/48 Biological material, e.g. blood, urine G01N33/02, G01N33/26, G01N33/44, G01N33/46 take precedence; Haemocytometers counting blood corpuscules distributed over a surface by scanning the surface G06M11/02
• CPC Class Codes: G01N 33/48764 : Test tape taken off a spool
• CPC Class Codes: Y10T 436/25 : including sample preparation

Abstract

A bodily fluid sampling device includes a piercing device and a sensor enclosed in a housing. A cassette, which contains test media, is positioned proximal to the sensor so that the sensor is able to analyze a bodily fluid sample collected on the test media. The cassette includes a supply portion from which unused test media is supplied and a storage portion in which contaminated test media is stored after exposure to the bodily fluid. The cassette is adapted to collect a series of bodily fluid samples without requiring disposal of the test media.

Claims

1. An apparatus, comprising:

a cassette including test media tape configured to collect body fluid; and

a sensor configured to analyze the body fluid collected by the test media tape using an optical technique, the sensor including

a light source/detector located remotely from the test media tape, and

optical fibers extending from the light source/detector to a test area that is proximal to the test media tape.

2. The apparatus of claim 1, wherein the optical fibers include:

a transmission optical fiber extending from the light source/detector to the test area, the transmission optical fiber being configured to transmit light from the light source/detector to the test area; and

a detection optical fiber extending from the light source/detector to the test area, the detection optical fiber being configured to transmit the light reflected from the body fluid on the test media tape to the light source/detector.

3. The apparatus of claim 2, further comprising:

an emitter coupled to the transmission optical fiber, the emitter being configured to emit the light from the transmission optical fiber; and

a detector coupled to the detection optical fiber, the detector being configured to receive the light reflected from the test media tape.

4. The apparatus of claim 3, wherein the light source/detector includes a light emitting diode.

5. The apparatus of claim 3, wherein the light source/detector includes a photodiode.

6. The apparatus of claim 1, wherein the optical fibers include a transmission optical fiber extending from the light source/detector to the test area.

7. The apparatus of claim 1, wherein the optical fibers include a detection optical fiber extending from the light source/detector to the test area.

8. The apparatus of claim 1, wherein the sensor and the cassette are incorporated into a body fluid sampling device.

9. An apparatus, comprising:

a sensor configured to analyze body fluid collected by a test media, the sensor including

a detector located at a position that is remote from the test media, wherein the detector is configured to analyze the body fluid collected by the test media using an optical technique, and

a detection optical fiber extending from the detector to the test media, the detection optical fiber being configured to transmit light from the test media to the detector.

10. The apparatus of claim 9, wherein the sensor includes:

a light source incorporated with the detector; and

a transmission optical fiber extending from the light source to the test media, the transmission optical fiber being configured to transmit light from the light source to the test media.

11. The apparatus of claim 10, further comprising:

an emitter coupled to the transmission optical fiber, the emitter being configured to emit the light from the transmission optical fiber; and

a detector coupled to the detection optical fiber, the detector being configured to receive the light reflected from the test media.

12. The apparatus of claim 9, further comprising:

a detector coupled to the detection optical fiber, the detector being configured to receive the light reflected from the test media.

13. The apparatus of claim 9, further comprising:

a cassette in which the test media is stored in the form of a test media tape.

14. An apparatus, comprising:

a sensor configured to analyze body fluid collected by a test media, the sensor including

a light source located at a position that is remote from the test media, and

a transmission optical fiber extending from the light source to the test media, the transmission optical fiber being configured to transmit light from the light source to the test media.

15. The apparatus of claim 14, further comprising:

a detector incorporated with the light source; and

a detection optical fiber extending from the detector to the test media, the detection optical fiber being configured to transmit light from the test media to the detector.

16. The apparatus of claim 14, further comprising:

an emitter coupled to the transmission optical fiber, the emitter being configured to emit the light from the transmission optical fiber.

17. The apparatus of claim 14, further comprising:

a cassette in which the test media is stored in the form of a test media tape.

18. A method, comprising:

transmitting light from a light source/detector via a transmission optical fiber, wherein the transmission optical fiber is coupled to an emitter;

emitting the light from the emitter towards a test media with a body fluid;

receiving the light reflected from body fluid on the test media with a detector;

transmitting the light from the detector to the light source/detector via a detection fiber optic cable; and

determining an amount of analyte in the body fluid by measuring with the light source/detector a property of the light reflected from the body fluid on the test media.

19. The method of claim 18, wherein said determining includes analyzing the frequency of the light reflected from the body fluid on the test media.

20. The method of claim 18, wherein the test media is in the form of a test media tape housed in a cassette.