Ultrasonic surgical blades
AssigneeEthicon, Inc.
InventorsDavid A. Witt, Jeffrey D. Messerly, Kevin L. Houser
Life of this patent
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Abstract
An ultrasonic surgical blade includes a body having a proximal end, a distal end, and an outer surface. The distal end is movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end. At least a portion of the outer surface of the body comprises a lubricious coating adhered thereto. The lubricious coating has a coefficient of friction that is less than the coefficient of friction of the outer surface of the body.
Claims21
1-20. (canceled)
An ultrasonic end effector, comprising:
- a clamp arm assembly;
- and
- an ultrasonic blade, comprising:
- a proximal end;
- and
- a distal end movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the ultrasonic blade by an ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer and a second layer, wherein the second layer is positioned on top of the first layer, and wherein the second layer is distal to the first layer.
An ultrasonic surgical instrument, comprising:
- a waveguide extending along a longitudinal axis;
- and
- an end effector, comprising:
- a clamp arm assembly;
- and
- an ultrasonic blade, comprising:
- a proximal end operably coupled to the waveguide;
- and
- a distal end movable relative to the longitudinal axis in accordance with ultrasonic vibrations applied to the waveguide by an ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer and a second layer, wherein the second layer is positioned on top of the first layer, and wherein the second layer is distal to the first layer.
An ultrasonic surgical system, comprising:
- an ultrasonic transducer;
- a waveguide operably coupled to the ultrasonic transducer, wherein the waveguide extends along a longitudinal axis;
- and
- an end effector, comprising:
- a clamp arm assembly;
- and
- an ultrasonic blade, comprising:
- a proximal end operably coupled to the waveguide;
- and
- a distal end movable relative to the longitudinal axis in accordance with ultrasonic vibrations applied to the waveguide by the ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer and a second layer, wherein the second layer is positioned on top of the first layer, and wherein the second layer is distal to the first layer.
Dependencies are inferred from the claim text.