Ultrasonic dissector
First Claim
1. A surgical cutting instrument comprising:
- a housing defining a longitudinal axis;
a vibration coupler positioned within the housing and having a proximal end positioned to engage an ultrasonic generator;
a tool member supported adjacent a distal end of the vibration coupler and having a cutting surface;
a clamp pivotally connected to the housing, the clamp being positioned adjacent the tool member and being movable from an open position spaced from the cutting surface to a closed position in close alignment with the cutting surface;
an actuation member operably connected to the clamp and being movable to move the clamp between the open and closed positions; and
a retaining mechanism supported by the housing, the retaining mechanism being positioned and configured to selectively retain the clamp at a plurality of positions in relation to the cutting surface of the tool member.
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0 Petitions
Accused Products
Abstract
An ultrasonic surgical instrument for dissection and coagulation of tissue is provided. The surgical instrument includes a vibration coupler supported within a housing and operably connected to an ultrasonic generator. An angled blade member is connected to the distal end of the vibration coupler to conduct high frequency vibration from the ultrasonic generator to the blade member. A clamp member is positioned adjacent to the blade member and is movable from a first position to a second approximated position. The clamp member and angled blade member combine to enhance contact between the tissue and the blade member during operation of the instrument to improve the performance of the instrument.
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Citations
23 Claims
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1. A surgical cutting instrument comprising:
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a housing defining a longitudinal axis;
a vibration coupler positioned within the housing and having a proximal end positioned to engage an ultrasonic generator;
a tool member supported adjacent a distal end of the vibration coupler and having a cutting surface;
a clamp pivotally connected to the housing, the clamp being positioned adjacent the tool member and being movable from an open position spaced from the cutting surface to a closed position in close alignment with the cutting surface;
an actuation member operably connected to the clamp and being movable to move the clamp between the open and closed positions; and
a retaining mechanism supported by the housing, the retaining mechanism being positioned and configured to selectively retain the clamp at a plurality of positions in relation to the cutting surface of the tool member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 19, 21)
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12. An ultrasonic instrument comprising:
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a cylindrical body defining a lumen and having a longitudinal axis;
a vibration coupler being positioned within the body and having a first end configured to be operably connected to an ultrasonic generator and a second end supporting a tool member;
a clamp member pivotally supported adjacent the tool member about a pivot axis, the clamp member being pivotable between an open position spaced from the tool member and a closed position in juxtaposed alignment with the tool member; and
a retaining mechanism positioned to selectively retain the clamp member in multiple distinct positions between the open and closed positions. - View Dependent Claims (13, 14, 17, 18, 20, 22, 23)
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Specification