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 surgical blade, comprising:
- a body, comprising:
- a proximal end;
- a distal end movable relative to a curved axis extending from the proximal end in accordance with ultrasonic vibrations applied to the proximal end, wherein the body extends along the curved axis from the proximal end to the distal end;
- and
- a tissue treatment region comprising an outer surface, wherein the outer surface comprises a body coefficient of friction;
- and
- a coating adhered to at least a portion of the tissue treatment region and configured to directly contact the tissue to be treated, wherein the coating comprises a coating coefficient of friction that is less than the body coefficient of friction, and wherein the coating comprises a polymeric material.
An ultrasonic surgical blade, comprising:
- an asymmetrical body, comprising:
- a proximal end;
- a distal end movable relative to an axis in accordance with ultrasonic vibrations applied to the proximal end;
- and
- a tissue treatment region comprising an outer surface, wherein the outer surface comprises a body coefficient of friction;
- and
- a coating adhered to at least a portion of the tissue treatment region and configured to directly contact the tissue to be treated, wherein the coating comprises a coating coefficient of friction that is less than the body coefficient of friction, and wherein the coating comprises a polymeric material.
An ultrasonic surgical blade, comprising:
- a curved body, comprising:
- a proximal end;
- a distal end movable relative to an axis in accordance with ultrasonic vibrations applied to the proximal end;
- and
- a tissue treatment region comprising an outer surface, wherein the outer surface comprises a body coefficient of friction;
- and
- a coating adhered to at least a portion of the tissue treatment region and configured to directly contact the tissue to be treated, wherein the coating comprising a coating coefficient of friction that is less than the body coefficient of friction, and wherein the coating comprises a polymeric material.
Dependencies are inferred from the claim text.