Automated test strip supplying system

• US 5,846,490 A
• Filed: 07/11/1996
• Issued: 12/08/1998
• Est. Priority Date: 05/10/1994
• Status: Expired due to Fees

• Current Assignee: Bayer Corporation (Bayer AG)
• Original Assignee: Bayer Corporation (Bayer AG)
• Inventors: Yokota, Hiroshi, Takahashi, Keiji
• Primary Examiner(s): Le, Long V.
• Application Number:
  US08/678,153
• Time in Patent Office: 880 Days
• Field of Search: 422/63-67, 436/43-48, 436/50, 436/55
• US Class Current: 422/66
• CPC Class Codes: G01N 2035/00118 for multiple tests
• CPC Class Codes: G01N 35/00029 provided with flat sample substrates, e.g. slides G01N35/028 takes precedence
• CPC Class Codes: Y10T 436/11 Automated chemical analysis
• CPC Class Codes: Y10T 436/112499 with sample on test slide
• 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

Disclosed is an automated supplying system for supplying liquid samples and test strips to an analyzer having a receiving section which receives test strips dipped in liquid samples one by one, a section at which optical characteristics of test pads provided on the received test strips are measured and a section for calculating analytical results of the respective components based on the respective optical characteristics obtained by the measurement.

Claims

1. An automated supply instrument for supplying liquid sample treated test strips to an analyzer, said instrument having a receiving section which receives a test strip dipped in liquid sample, a section at which optical characteristics of test pads provided on the test strip are measured, and means for calculating analytical results based on the respective optical characteristics obtained by said measurement, which instrument comprises:

horizontal, u-shaped transportation means for passing a plurality of specimen containers containing liquid samples across a test strip dipping position;

transfer means including a pick-up bar for picking up and removing a test strip from an opening in one end of a test strip container containing a plurality of test strips by inserting said pick-up bar into said test strip container, conveying the test strip to the test strip dipping position, dipping the test strip in a specimen container containing liquid sample to thereby contact test pads;

on the test strip with the liquid sample, drawing the test strip out of said specimen container after dipping, and then transferring the test strip to a receiving section of the analyzer; and

means for controlling operation timing between movement of the u-shaped transportation means and movement of the transfer means.

2. The instrument of claim 1 which also contains turning means for confirming the side of a test strip containing test pads and turning the test strip such that the test pads face upward when the test strip is transferred to the receiving section of the analyzer.

3. The instrument of claim 1 which also contains sucking means for removing excess sample from a test strip after dipping the test strip in liquid sample.