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Physiological test credit method

  • US 10,305,775 B2
  • Filed: 09/22/2017
  • Issued: 05/28/2019
  • Est. Priority Date: 11/05/2012
  • Status: Active Grant
First Claim
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1. A physiological monitoring system configured to perform parameter spot-checks on a per test credit basis, the system comprising:

  • a sensor configured to be placed at a measurement location of a patient and output signals indicative of the patient'"'"'s physiological conditions, the sensor comprising a memory configured to store one or more test credits; and

    a patient monitor configured to be coupled to the sensor, the patient monitor comprising one or more signal processors configured to receive and process the signals received from the sensor to make a physiological measurement of the patient,wherein the patient monitor is enabled to make the physiological measurement by one of the one or more test credits stored in the memory of the sensor, a number of test credits stored in the memory decremented after each physiological measurement,wherein the patient monitor is configured to determine the number of stored test credits after each physiological measurement and initiate communication with a remote server in response to the number of stored test credits falling below a predetermined threshold so as to;

    securely connect to the server,receive additional test credits from the server,send an acknowledgement for receipt of the additional test credits to the server, andusing a two-way handshake upon the server receiving the acknowledgement, update the number of test credits in the memory of the sensor when the server deducts the additional test credits from a user account and increments a test credit downloading index count.

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