Control systems for surgical instruments

  • US 9,629,629 B2
  • Filed: 03/07/2014
  • Issued: 04/25/2017
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a handle, comprising;

    a power circuit, comprising;

    a power source; and

    a switch;

    a microcontroller coupled to said power circuit; and

    a handle attachment portion, wherein said handle attachment portion comprises an electrical contact in signal communication with said microcontroller; and

    a control circuit in signal communication with said microcontroller, wherein said control circuit comprises a shaft attachment sensor configured to detect an attachment state of said handle attachment portion when a shaft is attached to said handle attachment portion, and wherein said control circuit is configured to communicate the detected attachment state to said microcontroller;

    wherein said microcontroller is configured to ignore signals from said electrical contact when said control circuit communicates a detached attachment state to said microcontroller, and wherein said shaft attachment sensor is configured to detect the detached attachment state unless a shaft is attached to said handle attachment portion.

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