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US 10,245,065 B2Granted
Ultrasonic surgical blades
AssigneeEthicon, Inc.
InventorsDavid A. Witt, Jeffrey D. Messerly, Kevin L. Houser
Life of this patent
Estimating the term…
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
An apparatus, comprising:
- an ultrasonic surgical blade for at least one of cutting and coagulating tissue, wherein the ultrasonic surgical blade comprises:
- a body having a proximal end, a distal end, and an outer surface comprising a treatment region configured to directly contact the tissue to be treated, wherein the distal end is movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end;
- and
- a lubricious coating for contacting tissue, wherein the lubricious coating comprises a coefficient of friction that is less than the coefficient of friction of the outer surface of the body, wherein the lubricious coating is adhered to at least a portion of the treatment region of the outer surface of the body, wherein the lubricious coating comprises a polymeric material, and wherein the lubricious coating comprises a second layer adhered to at least a portion of a first layer.
1 more element
An ultrasonic surgical blade, comprising:
- a body, comprising:
- a proximal end;
- a distal end movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end;
- and
- an outer surface defining a first coefficient of friction relative to a piece of tissue, wherein the outer surface comprises a tissue treatment region;
- a first lubricious coating adhered to at least a portion of the tissue treatment region;
- and
- a second lubricious coating overlapping at least a portion of the first lubricious coating and configured to directly contact tissue, wherein the second lubricious coating defines a second coefficient of friction relative to the piece of tissue, and wherein the second coefficient of friction is less than the first coefficient of friction.
5 more elements
An ultrasonic surgical blade, comprising:
- a body, comprising:
- a proximal end;
- a distal end movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end;
- and
- an outer surface defining a first coefficient of friction relative to a piece of tissue, wherein the outer surface comprises a tissue treatment region;
- and
- a layered coating adhered to at least a portion of the tissue treatment region and configured to directly contact tissue, wherein the layered coating defines a second coefficient of friction relative to the piece of tissue, and wherein the second coefficient of friction is less than the first coefficient of friction.
4 more elements
Dependencies are inferred from the claim text.