ELECTRICALLY POWERED DRIVE SYSTEM FOR MEDICAL DEVICE

摘要

An electrically powered drive system for a medical device includes a motor, a gear box driven by the motor, a driving member for moving a part of the device, a crank mechanism, and a push-pull mechanism. The crank mechanism includes first and second crank arms each having a connection end and a distal end. The first crank arm's distal end is pivotally connected to the driving member. The second crank arm's connection end is pivotally connected to the first crank arm's connection end. The second crank arm's distal end is pivotally connected to a stationary member. The push-pull mechanism is connected to and driven by an output member of the gear box to drive the crank mechanism to move the driving member between a retracted position and an extended position.

主权项

1. An electrically powered drive system for a medical device, comprising:
a motor; a gear box driven by the motor and comprising an output member; a driving member configured to move a movable part of the medical device; a crank mechanism comprising:
a first crank arm having a connection end and a distal end, the distal end of the first crank arm being pivotally connected to the driving member; anda second crank arm having a connection end and a distal end, the connection end of the second crank arm being pivotally connected to the connection end of the first crank arm, and the distal end of the second crank arm being pivotally connected to a stationary member; and a push-pull mechanism connected between the gear box and the crank mechanism, the push-pull mechanism being connected to the output member of the gear box, the push-pull mechanism being configured to drive the crank mechanism to move the driving member between a retracted position and an extended position under the drive of the output member.