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Method and apparatus for calculating a coagulation characteristic of a sample of blood a blood fraction or a control

  • US 5,526,111 A
  • Filed: 08/31/1993
  • Issued: 06/11/1996
  • Est. Priority Date: 08/31/1993
  • Status: Expired due to Term
First Claim
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1. A method for calculating a coagulation characteristic of a sample of blood, a blood fraction, or a control, the method comprising the steps of:

  • generating an output signal indicative of coagulation of the sample;

    sampling the output signal at a sampling rate for a predetermined time interval to provide a plurality of sampled signal values;

    storing the sampled signal values;

    determining an envelope from the stored signal values;

    storing the envelope; and

    calculating the coagulation characteristic from the stored envelope based on the maximum signal value.

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