Surgical retraction mechanism
AssigneeTyco Healthcare Group LP
InventorStanislaw Marczyk
Life of this patent
Estimating the term…
Abstract
A retraction mechanism has been developed for use with a hand held surgical apparatus. The retraction mechanism includes a motor, a first speed reducing mechanism, a clutch mechanism incorporating a second speed reducing mechanism, and a shaft. The first speed reducing mechanism is configured to be driven by a motor. The second speed reducing mechanism has a locked state and an unlocked state. In addition, the clutch mechanism is disposed in mechanical cooperation with the first speed reducing mechanism. The shaft is configured to rotate upon activation of the motor the second speed reducing mechanism is in the locked state. The rotation of the shaft retracts a firing drive of the hand held surgical apparatus.
Claims18
A mechanism for use with a surgical apparatus, comprising:
- a speed reducing mechanism configured to be driven by a motor;
- a clutch operatively coupled to the speed reducing mechanism, the clutch having a locked state and an unlocked state;
- and
- a firing drive adapted to actuate a surgical tool, the firing drive being adapted to move longitudinally in response to a rotation of a shaft driven by the clutch while in the locked state, and wherein the shaft rotates upon activation of the motor.
A retraction mechanism for use with a hand held surgical stapling apparatus, comprising:
- a speed reducing mechanism adapted to be driven by a motor;
- a clutch mechanism, wherein the clutch mechanism is disposed in mechanical cooperation with the speed reducing mechanism;
- a shaft configured to rotate upon activation of the motor, wherein a rotation of the shaft retracts a drive member of a surgical apparatus;
- and
- a pulley disposed in mechanical cooperation with the shaft, the pulley being operatively connected to the drive member.
Dependencies are inferred from the claim text.