Device for measuring compounds in body liquids

• US 7,507,375 B2
• Filed: 04/23/2004
• Issued: 03/24/2009
• Est. Priority Date: 11/12/2001
• Status: Expired due to Fees

• Current Assignee: Melodia Medical AB
• Original Assignee: Eva Brink, Gerhard Andersson
• Inventors: Brink, Eva, Andersson, Gerhard
• Primary Examiner(s): Warden; Jill
• Assistant Examiner(s): TURK, NEIL N
• Application Number:
  US10/831,261
• Publication Number:
  US 20040253145A1
• Time in Patent Office: 1,796 Days
• Field of Search: None
• US Class Current: 422/63
• 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 5/14532 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 5/150358 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 5/15113 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: G01N 33/4875 Details of handling test elements, e.g. dispensing or storage, not specific to a particular test method test-elements per se B01L, automatic analysers G01N35/00, in-vivo analysis on the human body for medical diagnosis A61B
• CPC Class Codes: Y10T 436/11 Automated chemical analysis
• CPC Class Codes: Y10T 436/113332 with conveyance of sample along a test line in a container or rack
• CPC Class Codes: Y10T 436/114165 with step of insertion or removal from test line

Abstract

The present invention relates to device for quantitative and/or qualitative determination of the presence/absence of a substance in a body liquid comprising a rotatably arranged magazine containing a number of test electrodes intended to be brought into contact with a body liquid to be determined, an arm arranged to influence a test electrode to a relative movement relative to said magazine, whereby the arm comprises contact sheet metals arranged to releasably be fixed to said test electrode and arranged to return said test electrode to the magazine after a finished testing, as well as an arm contained in said device.

Claims

1. A device for quantitative and/or qualitative determination of the presence/absence of a substance in a body liquid comprising a rotatably arranged magazine, provided on a centrally located shaft, containing a number of test electrodes intended to be brought into contact with a body liquid to determine the presence/absence of a substance of the body liquid, an arm eccentrically arranged along the shaft and opposing said magazine to move a test electrode to a position relative to said magazine, wherein the arm comprises contact sheet metals arranged to be releasably fixed to said test electrode and arranged to return said test electrode to the magazine after a finished determination.

2. A device according to claim 1, wherein the arm with its contact sheet metals is arranged to be brought into contact with a test electrode, whereby the arm is arranged to grip said test electrode.

3. A device according to claim 2, wherein the arm at its front end is provided with flexible gripping claws placed on either side of said contact sheet metals and arranged to be able to be compressed around a contact end of a test electrode to grip the test electrode.

4. A device according to claim 3, wherein said test electrodes contained in said magazine are placed in individual spaces for the determination of absence/presence of a substance in a body liquid, wherein the spaces receiving the test electrodes are inwardly tapering in such a way that said arm with its contact sheet metals introduced in such a space is brought to releasably grip and keep the test electrode so that the test electrode is released from said arm when being returned into said space.

5. A device according to claim 4, wherein the magazine contains at least six spaces for test electrodes.

6. A device according to claim 5, wherein the magazine contains at least eight spaces for test electrodes.

7. A device according to claim 1, wherein said arm comprises a front end provided with a test electrode receiving unit containing said contact sheet metals and flexible gripping claws placed on each side of said contact sheet metals at its forward end and arranged to be able to be compressed around a contact end of a test electrode to grip and retain a test electrode.