Treatment tool
A treatment tool can include an end effector comprising an ultrasonic blade, a tubular portion coupled to the end effector, and a driver coupled to a proximal end of the tubular portion. The driver can be configured to actuate the end effector via the tubular portion. The treatment tool can further include a pusher configured to support a coupling between the tubular portion and the driver in order to prevent a movement of the tubular portion in a longitudinal direction thereof.
1 . A medical treatment instrument, comprising:
an end effector comprising an ultrasonic blade;
a tube coupled to the end effector;
a driver coupled to a proximal end of the tube, wherein the driver is configured to actuate the end effector via the tube, and wherein the driver includes a protrusion protruding toward a distal end of the tube; and
a pusher configured to support a coupling between the tube and the driver, wherein the pusher is configured to prevent a movement of the tube relative to the driver in a longitudinal direction of the tube, and wherein the pusher is located between the tube and the protrusion in a radial direction of the tube; and wherein the pusher comprises:
a base;
a first protrusion; and
a second protrusion, wherein the first protrusion and the second protrusion are extended from the base in a width direction intersecting with the longitudinal direction of the tube, and wherein the first protrusion is located between the protrusion and the tube.
2 . The medical treatment instrument according to claim 1 , wherein the pusher is formed in a U-shape.
3 . The medical treatment instrument according to claim 1 , wherein the tube includes a notch, wherein the driver includes a projection, and wherein the notch is connected to the projection.
4 . The medical treatment instrument according to claim 1 , further comprising:
a vibration transmission portion located inside the tube, wherein the vibration transmission portion is configured to transmit ultrasound vibration.
5 . The medical treatment instrument according to claim 2 , wherein the pusher comprises:
a pin, wherein the first protrusion and the second protrusion sandwiches the protrusion, and wherein the pin is fixed between the first protrusion and the second protrusion.
6 . The medical treatment instrument according to claim 1 , wherein the pusher is configured to be adhered to at least one of the driver or the tube.
7 . The medical treatment instrument according to claim 1 , wherein the driver is configured to move along a longitudinal axis of the medical treatment instrument.
8 . The medical treatment instrument according to claim 1 , wherein the pusher is configured to be attached to the protrusion.
9 . The medical treatment instrument according to claim 3 , wherein the projection is located inside the notch.
10 . The medical treatment instrument according to claim 3 , wherein the projection is located opposed to the protrusion.
11 . The medical treatment instrument according to claim 3 , wherein the tube is located between the projection and the protrusion.
12 . The medical treatment instrument according to claim 3 , wherein the pusher is located between the projection and the protrusion.
13 . The medical treatment instrument according to claim 1 , wherein the first protrusion and the second protrusion sandwiches the protrusion.
14 . The medical treatment instrument according to claim 1 , wherein the pusher contacts an outer surface of the tube.
15 . The medical treatment instrument according to claim 14 , wherein the pusher contacts an outer surface of the protrusion.