Device for blood sampling and analysis

• US 4,959,196 A
• Filed: 12/20/1988
• Issued: 09/25/1990
• Est. Priority Date: 12/21/1987
• Status: Expired due to Fees

• Current Assignee: Biovallees
• Original Assignee: Biovallees
• Inventors: Moisson, Claude
• Primary Examiner(s): Warden, Robert J.
• Assistant Examiner(s): Trautman, Kimberly A.
• Application Number:
  US07/286,798
• Time in Patent Office: 644 Days
• Field of Search: 422/68, 422/44, 422/55, 422/56, 422/58, 422/119, 436/44, 436/45, 436/46, 436/66, 436/67, 128/329 R, 128/632, 128/770, 128/314, 604/130, 604/137, 604/187, 604/318, 604/404
• US Class Current: 422/82.05
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• 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 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: G01N 2021/478 Application in testing analytical test strips
• CPC Class Codes: G01N 21/8483 Investigating reagent band test-element handling not specific to a test method G01N33/4875; analytical elements specific to chemical analysis of biological material G01N33/52; autometer with reagent band G01N35/04

Abstract

The invention relates to a device for sampling and analyzing blood. It comprises an auto-pricker (1), a magazine (2) for strips, these strips comprising a reactive zone, and a reflectometer (6). Moreover, the magazine (2) is integral with the auto-pricker (1) and the device comprises means (7, 8) enabling the reflectometer (6) and the auto-pricker (1) to be made integral at rest.

Claims

1. A device for sampling blood and evaluating desired concentrations of substances therein, comprising:

an auto-pricker;

a plurality of strips, said strips including a reactive area having a color which varies according to the concentration of the substance being evaluated;

a reflectometer comprising;

(a) reading system means for supplying information about said reactive area;

(b) processing system means for receiving and processing said information supplied by said reading system means, said processing system means comprising microprocessor and read-only memory means for converting said information supplied by said reading system into the desired concentration; and

(c) display system means for directly displaying the desired concentration; and

magazine means for holding said strips, said magazine means being integral with said auto-pricker and having holder means for receiving one of said strips externally of said reflectometer before said one of said strips has received the sampled blood;

said auto-pricker being separable from said reflectometer during pricking, and said auto-pricker and said reflectometer including first integration means for integrating said auto-pricker and said reflectometer when at rest and second integration means for integrating said auto-pricker and said reflectometer during reading of the color of said reactive area.

2. The device of claim 1, wherein said second integration means comprises complementary means for nesting said auto-pricker in said reflectometer during reading of the color of said reactive area.

3. The device of claim 1, wherein said auto-pricker and said reflectometer include tensioning means for triggering said reflectometer only when said auto-pricker and said reflectometer are made integral during reading of the color of said reactive area.

4. The device of claim 1, wherein said magazine means includes a disposable plug incorporating desiccator means for absorbing moisture to conserve said strips.

5. The device of claim 1, wherein said magazine means comprises a disposable plug provided with first groove means for receiving one of said strips before said one of said strips has received the sampled blood, wherein said plug includes clip means for carrying said first groove means, and wherein said reflectometer includes second groove means for receiving said clip means and positioning said reactive area of said one of said strips relative to said reading system means of said reflectometer when said reflectometer is in use.

6. The device of claim 1, said reflectometer further comprising:

(d) a stopwatch and (e) a sonic device.

7. The device of claim 4, wherein said plug includes planar face means for resting said device when said device is at rest and when said reflectometer is being used.

8. A device for sampling blood and evaluating desired concentrations of substances therein, comprising:

an auto-pricker;

a plurality of strips, said strips including a reactive area having a color which varies according to the concentration of the substance being evaluated;

a reflectometer comprising;

(a) reading system means for supplying information about said reactive area;

(b) processing system means for receiving and processing said information supplied by said reading system means, said processing system means comprising microprocessor and read-only memory means for converting said information supply by said reading system into the desired concentration; and

(c) display system means for directly displaying the desired concentration; and

magazine means for holding said strips, said magazine means being integral with said auto-pricker and including a disposable plug provided with groove means for receiving one of said strips externally of said reflectometer before said one of said strips has received the sampled blood;

said auto-pricker and said reflectometer including integration means for integrating said auto-pricker and said reflectometer when at rest and during reading of the color of said reactive area.

9. The device of claim 8, wherein said groove means includes edge means for accurately positioning said reactive area and said edge means is interrupted at said reactive area to facilitate depositing the sampled blood on said reactive means and wiping it off.

10. The device of claim 8, wherein said plug includes clip means for carrying said groove means.

11. The device of claim 10, wherein said reflectometer includes additional groove means for receiving said clip means and positioning said reactive area of said one of said strips relative to said reading system means of aid reflectometer when said reflectometer is in use.