×

Control system for clip applier

  • US 10,485,527 B2
  • Filed: 08/29/2017
  • Issued: 11/26/2019
  • Est. Priority Date: 08/29/2017
  • Status: Active Grant
First Claim
Patent Images

1. A surgical clip applier system, comprising:

  • a clip applier shaft assembly having a shaft with a plurality of clips disposed therein and a pair of jaws at a distal end thereof, the clip applier shaft assembly including a clip advancing assembly configured to feed a distal-most clip of the plurality of clips into the pair of jaws, and a clamping assembly configured to move the pair of jaws from an open position to a closed position to form the distal-most clip around tissue;

    a drive assembly operably coupled to the clamping assembly and to a motor for driving the clamping assembly through a first stage of clip formation in which a clip in the jaws is moved from an initial open configuration to a partially closed configuration, and to further drive the clamping assembly through a second stage of clip formation in which the clip is moved from the partially closed configuration to a final closed configuration; and

    a control system configured to control the motor so as to control a velocity of the clamping assembly during the first stage of clip formation, and to terminate actuation of the motor and thus the drive assembly during the second stage of clip formation if a load on the motor exceeds a first predetermined load threshold.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×