MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT WITH ELECTRIC ACTUATOR DIRECTIONAL CONTROL ASSEMBLY
First Claim
1. A surgical instrument, comprising:
- an end effector comprising a moveable component;
an electric motor for powering the end effector;
a moveable drive member that is driven in a first direction when the electric motor operates in a first direction and that is driven in a second direction when the electric motor operates in a second direction, wherein movement of the drive member causes movement of the moveable component of the end effector; and
a motor control circuit connected to the motor for controlling the motor, wherein the motor control circuit comprises a switching circuit that, upon actuation, reverses the direction of the motor from the first direction to the second direction, wherein the switching circuit is actuatable separately through each of;
actuation of a moveable actuator of the switching circuit through movement of the drive member at least in the first direction; and
manual actuation by a user of the surgical instrument.
4 Assignments
0 Petitions
Accused Products
Abstract
A motor-driven surgical instrument that may comprise (i) a moveable drive member that is driven in a first direction when the electric motor operates in a first direction and that is driven in a second direction when the electric motor operates in a second direction. Movement of the drive member causes movement of the moveable component of the end effector, and (ii) a motor control circuit connected to the motor for controlling the motor. The motor control circuit may comprise a switching circuit that, upon actuation, reverses the direction of the motor from the first direction to the second direction. The switching circuit may be actuatable separately through each of: (i) actuation of a moveable actuator of the switching circuit through movement of the drive member at least in the first direction; and (ii) manual actuation by a user of the surgical instrument.
440 Citations
20 Claims
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1. A surgical instrument, comprising:
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an end effector comprising a moveable component; an electric motor for powering the end effector; a moveable drive member that is driven in a first direction when the electric motor operates in a first direction and that is driven in a second direction when the electric motor operates in a second direction, wherein movement of the drive member causes movement of the moveable component of the end effector; and a motor control circuit connected to the motor for controlling the motor, wherein the motor control circuit comprises a switching circuit that, upon actuation, reverses the direction of the motor from the first direction to the second direction, wherein the switching circuit is actuatable separately through each of; actuation of a moveable actuator of the switching circuit through movement of the drive member at least in the first direction; and manual actuation by a user of the surgical instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification