SENSOR STRIP POSITIONING MECHANISM

• US 20110178433A1
• Filed: 01/19/2010
• Published: 07/21/2011
• Est. Priority Date: 01/19/2010
• Status: Active Grant

• Current Assignee: Embecta Corporation
• Original Assignee: Becton, Dickinson & Co
• Inventors: Mondro, Jason, Schiff, David, Gisler, Scott W.
• Granted Patent: US 8,956,309 B2
• Time in Patent Office: Days
• US Class Current: 600/583
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• 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 5/15146 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 5/15186 Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood
• CPC Class Codes: G01N 2035/00108 Test strips, e.g. paper
• CPC Class Codes: G01N 33/48764 Test tape taken off a spool
• CPC Class Codes: G01N 35/00009 provided with a sample supporting tape, e.g. with absorbent zones
• CPC Class Codes: Y10T 436/110833 Utilizing a moving indicator strip or tape

Abstract

A blood sample test device has a continuous strip sensor which is advanced through the device so that multiple blood sample tests can be conducted on a single strip. The device is provided with a sprocket having an encoder which engages sprocket holes on the strip to precisely control the advancement of the strip through the device.

Claims

1. A blood sample test device, comprising:

a supply wheel;

a take-up wheel;

a motor engaging the supply wheel or the take up wheel;

a sensor strip on the supply wheel and the take up wheel having a plurality of test sites arranged in series in a travel direction on the strip, wherein each test site includes a lancet hole, first electrodes for determining a blood sample volume, test electrodes for determining a blood sample characteristic, and a sprocket hole;

a sprocket having an encoder and a tooth engaging the sprocket hole; and

a processor operatively connected to the first electrodes, the test electrodes, the encoder and the motor to control advancement of the strip through the device.

2. The blood sample test device according to claim 1, further comprising a lancer mechanism, wherein the processor is operatively connected to the lancer mechanism to control a lancing operation to collect a blood sample on the sensor strip.

3. The blood sample test device according to claim 1, further comprising a unitary housing containing the supply wheel, the take-up wheel, the strip, the motor, the sprocket and encoder, and the processor, and having a display and user-operable controls.

4. The blood sample test device according to claim 1, wherein the motor is operatively engaged with the take up wheel.

5. The blood sample test device according to claim 1, wherein the strip, supply wheel and take-up wheel are provided in a cartridge that is removable from a unitary housing containing the sprocket.