Surgical instrument control circuit having a safety processor

  • US 9,690,362 B2
  • Filed: 03/26/2014
  • Issued: 06/27/2017
  • Est. Priority Date: 03/26/2014
  • Status: Active Grant
First Claim
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1. A surgical instrument control circuit, comprising:

  • a primary processor;

    a safety processor in signal communication with the primary processor;

    a segmented circuit comprising a plurality of circuit segments in signal communication with the primary processor, the plurality of circuit segments configured to control one or more operations of the surgical instrument, wherein the safety processor is configured to monitor one or more parameters of the plurality of circuit segments;

    a first sensor configured to monitor a first property of the surgical instrument; and

    a second sensor configured to monitor a second property of the surgical instrument, wherein the first property and the second property comprise a predetermined relationship, and wherein the first sensor and the second sensor are in signal communication with the safety processor;

    wherein the safety processor is configured to;

    verify the one or more parameters of the plurality of circuit segments;

    verify the one or more parameters independently of one or more control signals generated by the primary processor; and

    independently verify a velocity of a cutting member.

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