Ultrasonic surgical blade with improved heel portion
First Claim
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1. An ultrasonic surgical blade, comprising:
- a solid body;
a longitudinal portion having a proximal end configured to couple to an ultrasonic transmission waveguide and a distal end configured to dissect and coagulate tissue, the longitudinal portion comprising;
a substantially planar longitudinal surface; and
a distal hemostasis surface located opposite of the substantially planar longitudinal surface;
a transverse portion extending crosswise from the distal end of the longitudinal portion, the transverse portion defining a hook having a free end configured to pull and dissect tissue, the transverse portion comprising;
a curved section extending from a distal end of the substantially planar longitudinal surface;
a tip surface defined at the free end;
a substantially planar proximal inner surface extending from the curved section to the tip surface; and
a plow member extending from the tip surface to the distal hemostasis surface, the plow member comprising first and second lateral surfaces extending from a surface inflection defining a cutting edge; and
a distal dissection edge defined at a surface inflection of the first and second lateral surfaces and the distal hemostasis surface.
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Accused Products
Abstract
An ultrasonic surgical blade with an improved heel portion is disclosed. The blade includes a solid body, a longitudinal portion having a proximal end configured to couple to an ultrasonic transmission waveguide and a transverse portion extending crosswise from the distal end of the longitudinal portion. At least one dissection edge and at least one hemostasis surface is provided on the blade. The transverse portion defines a hook having a free end configured to pull and dissect tissue. The blade further comprises a tissue plow comprising a plow edge and a distal-most vertex to increase the efficiency of heel dissection and tissue diversion.
2124 Citations
20 Claims
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1. An ultrasonic surgical blade, comprising:
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a solid body; a longitudinal portion having a proximal end configured to couple to an ultrasonic transmission waveguide and a distal end configured to dissect and coagulate tissue, the longitudinal portion comprising; a substantially planar longitudinal surface; and a distal hemostasis surface located opposite of the substantially planar longitudinal surface; a transverse portion extending crosswise from the distal end of the longitudinal portion, the transverse portion defining a hook having a free end configured to pull and dissect tissue, the transverse portion comprising; a curved section extending from a distal end of the substantially planar longitudinal surface; a tip surface defined at the free end; a substantially planar proximal inner surface extending from the curved section to the tip surface; and a plow member extending from the tip surface to the distal hemostasis surface, the plow member comprising first and second lateral surfaces extending from a surface inflection defining a cutting edge; and a distal dissection edge defined at a surface inflection of the first and second lateral surfaces and the distal hemostasis surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An ultrasonic surgical blade, comprising:
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a solid body; a longitudinal portion having a proximal end and a distal end, the longitudinal portion comprising; a substantially planar longitudinal surface; and a distal hemostasis surface located opposite of the substantially planar longitudinal surface; a transverse portion extending crosswise from the distal end of the longitudinal portion, the transverse portion defining a hook having a free end, the transverse portion comprising; a curved section extending from a distal end of the substantially planar longitudinal surface; a tip surface defined at the free end; a proximal inner surface extending from the curved section to the tip surface; and a tissue diverting portion extending from the tip surface to the distal hemostasis surface, the tissue diverting portion comprising a tissue diverting edge; and a distal dissection edge defined by a surface inflection of the distal hemostasis surface and the tissue diverting portion. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An ultrasonic surgical blade, comprising:
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a hook portion having a free end portion and a distal end; a plow member defined by the distal end of the hook portion, the plow member comprising first and second lateral surfaces extending from a first surface inflection defining a cutting edge; a distal hemostasis surface extending from a second surface inflection defined by the first and second lateral surface; and a distal dissection edge defined by a third surface inflection of the distal hemostasis surface and the plow member. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification