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Apparatus and method for acquiring oximetry and electrocardiogram signals

  • US 7,305,262 B2
  • Filed: 12/11/2003
  • Issued: 12/04/2007
  • Est. Priority Date: 12/11/2003
  • Status: Active Grant
First Claim
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1. A method of acquiring pulse oximetry and electrocardiogram signals from a patient, the method comprising:

  • configuring a single transducer and attaching the single transducer to a finger of a patient, wherein the single transducer includes a single electrode such that when the single transducer is attached to the finger of the patient, the single transducer is configured to acquire a pulse oximetry signal and acquire an electrocardiogram signal with the single electrode, wherein the acquired electrocardiogram signal is either one of a reference electrocardiogram signal or a non-reference electrocardiogram signal, and further wherein a neural-muscular transmission device is coupled to the single transducer, and includes a support member that extends to a thumb of the patient;

    acquiring the pulse oximetry signal and the electrocardiogram signal with the single electrode;

    stimulating the patient with the neural-muscular transmission device; and

    measuring the strength of muscle contraction caused by the stimulating step;

    wherein the acquired pulse oximetry signal is processed to account for effects of the stimulating step to provide an artifact free pulse oximetry signal.

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