Ultrasonic surgical instruments
First Claim
1. A surgical instrument, comprising:
- a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency;
an ultrasonic blade extending along the longitudinal axis coupled to the transducer, wherein the ultrasonic blade comprises;
a body having a proximal end and a distal end defining a length along the longitudinal axis, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer;
a treatment region having a proximal end and a distal end, wherein the treatment region extends to the distal end of the body;
a substantially flat top surface comprising a broad top portion defining a width transverse to the length, wherein the broad top portion is substantially flat along the width, wherein the broad top portion is arcuate about a first axis along the length, defining a first longitudinal radius of curvature, and wherein the substantially flat top surface comprises a top distal end;
a bottom surface comprising a bottom surface portion, wherein the bottom surface portion is substantially arcuate about a second axis along the length, defining a second longitudinal radius of curvature, wherein the bottom surface portion is substantially arcuate about a third axis transverse to the length, defining a transverse radius of curvature, and wherein the bottom surface comprises a bottom distal end;
a substantially flat tip, wherein the substantially flat tip is positioned at the distal end of the body coinciding with an anti-node to provide maximum vibrational displacement of the substantially flat tip, wherein the substantially flat tip comprises a cutting edge defining a cutting surface, and wherein the substantially flat tip extends distally from the top distal end of the substantially flat top surface to the bottom distal end of the bottom surface; and
a neck portion protruding from the proximal end of the body adapted to couple to the transducer;
wherein the width of the substantially flat top surface is substantially greater than a thickness of the body between the substantially flat top surface and the bottom surface.
4 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument includes a transducer configured to produce vibrations at a predetermined frequency. The transducer is configured to produce vibrations along a longitudinal axis at a predetermined frequency. An ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. The ultrasonic blade includes a body having a proximal end and a distal end. The distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer. The body includes a treatment region that extends from the proximal end to the distal end. The body includes a substantially flat broad top surface, a bottom surface, and a neck portion protruding from the proximal end adapted to couple to the transducer.
1382 Citations
17 Claims
-
1. A surgical instrument, comprising:
-
a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency; an ultrasonic blade extending along the longitudinal axis coupled to the transducer, wherein the ultrasonic blade comprises; a body having a proximal end and a distal end defining a length along the longitudinal axis, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer; a treatment region having a proximal end and a distal end, wherein the treatment region extends to the distal end of the body; a substantially flat top surface comprising a broad top portion defining a width transverse to the length, wherein the broad top portion is substantially flat along the width, wherein the broad top portion is arcuate about a first axis along the length, defining a first longitudinal radius of curvature, and wherein the substantially flat top surface comprises a top distal end; a bottom surface comprising a bottom surface portion, wherein the bottom surface portion is substantially arcuate about a second axis along the length, defining a second longitudinal radius of curvature, wherein the bottom surface portion is substantially arcuate about a third axis transverse to the length, defining a transverse radius of curvature, and wherein the bottom surface comprises a bottom distal end; a substantially flat tip, wherein the substantially flat tip is positioned at the distal end of the body coinciding with an anti-node to provide maximum vibrational displacement of the substantially flat tip, wherein the substantially flat tip comprises a cutting edge defining a cutting surface, and wherein the substantially flat tip extends distally from the top distal end of the substantially flat top surface to the bottom distal end of the bottom surface; and a neck portion protruding from the proximal end of the body adapted to couple to the transducer; wherein the width of the substantially flat top surface is substantially greater than a thickness of the body between the substantially flat top surface and the bottom surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An ultrasonic surgical elevator blade, comprising:
-
a body defining a longitudinal axis, the body having a proximal end and a distal end, the body defining a length along the longitudinal axis, wherein the distal end is movable relative to the longitudinal axis by vibrations produced by a transducer; a treatment region having a proximal end and a distal end, wherein the treatment region extends to the distal end of the body, a substantially flat top surface comprising a broad top portion defining a width transverse to the length, wherein the broad top portion is substantially flat along the width, wherein the broad top portion is arcuate about a first axis along the length, defining a first longitudinal radius of curvature, and wherein the substantially flat top surface comprises a top distal end; a bottom surface comprising a bottom surface portion, wherein the bottom surface portion is substantially arcuate about a second axis along the length, defining a second longitudinal radius of curvature, wherein the bottom surface portion is substantially arcuate about a third axis transverse to the length, defining a transverse radius of curvature, and wherein the bottom surface comprises a bottom distal end; a substantially flat tip, wherein the substantially flat tip is positioned at the distal end of the body coinciding with an anti-node to provide maximum vibrational displacement of the substantially flat tip, wherein the substantially flat tip comprises a cutting edge defining a cutting surface, wherein the substantially flat tip extends distally from the top distal end of the substantially flat top surface to the bottom distal end of the bottom surface; and a neck portion protruding from the proximal end adapted to couple to an ultrasonic transmission waveguide to transmit vibrations at a predetermined frequency from the transducer to the distal end of the treatment region; wherein the width of the substantially flat top surface is substantially greater than a thickness of the body between the substantially flat top surface and the bottom surface. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. An ultrasonic surgical elevator blade, comprising:
-
a body defining a longitudinal axis, the body having a proximal end and a distal end, the body defining a length along the longitudinal axis, wherein the distal end is movable relative to the longitudinal axis by vibrations produced by a transducer; a substantially flat top surface comprising a broad top portion defining a width transverse to the length, wherein the broad top portion is substantially flat along the width, wherein the broad top portion is arcuate about a first axis along the length, defining a first longitudinal radius of curvature; a bottom surface comprising a bottom surface portion, wherein the bottom surface portion is substantially arcuate about a second axis along the length, defining a second longitudinal radius of curvature, wherein the bottom surface portion is substantially arcuate about a third axis transverse to the length, defining a transverse radius of curvature; a substantially flat tip, wherein the substantially flat tip is positioned at the distal end of the body, wherein the substantially flat tip comprises a cutting edge defining a cutting surface; and a neck portion protruding from the proximal end adapted to couple to an ultrasonic transmission waveguide to transmit vibrations at a predetermined frequency and wavelength from the transducer to the distal end of the distal end of the body; wherein the ultrasonic surgical elevator blade comprises an anti-node positioned at the substantially flat tip, and wherein the anti-node provides maximum vibrational displacement of the surgical elevator blade at the substantially flat tip. - View Dependent Claims (17)
-
Specification