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Multipurpose sensor port

  • US 10,058,275 B2
  • Filed: 12/29/2014
  • Issued: 08/28/2018
  • Est. Priority Date: 07/25/2003
  • Status: Active Grant
First Claim
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1. A method of adapting communications between a patient monitoring device and either a physiological sensor or a digital data source, the method comprising:

  • providing a sensor port of the patient monitoring device;

    detecting whether the physiological sensor or the digital data source is connected to the sensor port;

    when said physiological sensor is detected;

    transmitting drive signals to the physiological sensor over an emitter drive path,detecting light attenuated by body tissue using said physiological sensor, andcommunicating signals to the patient monitoring device indicative of the light that has been attenuated by body tissue; and

    when said digital data source is detected;

    transmitting a predetermined waveform over the emitter drive path;

    switching from an analog communication mode to a digital communication mode responsive to the predetermined waveform , andtransmitting digital data between the digital data source through a sensor interface to the sensor port.

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