Ultrasonic Dissector
First Claim
1. A surgical cutting instrument comprising:
- a housing;
a vibration coupler positioned within the housing and engagable with an ultrasonic transducer;
a tool member supported adjacent a distal end of the vibration coupler and having an operating surface;
a clamp positioned adjacent the tool member and movable between an open position, in which the clamp is spaced from the operating surface of the tool member, and a closed position, in which the clamp is in close alignment with the operating surface of the tool member;
an actuation rod operably connected to the clamp and movable to reposition the clamp between the open position and the closed position;
a retaining member engagable with the actuation rod to selectively maintain the clamp in one or more positions including the open position, the closed position, and at least one intermediate position therebetween; and
an actuation member operably connected to the actuation rod such that movement of the actuation member effectuates corresponding movement of the actuation rod.
6 Assignments
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
20 Claims
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1. A surgical cutting instrument comprising:
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a housing; a vibration coupler positioned within the housing and engagable with an ultrasonic transducer; a tool member supported adjacent a distal end of the vibration coupler and having an operating surface; a clamp positioned adjacent the tool member and movable between an open position, in which the clamp is spaced from the operating surface of the tool member, and a closed position, in which the clamp is in close alignment with the operating surface of the tool member; an actuation rod operably connected to the clamp and movable to reposition the clamp between the open position and the closed position; a retaining member engagable with the actuation rod to selectively maintain the clamp in one or more positions including the open position, the closed position, and at least one intermediate position therebetween; and an actuation member operably connected to the actuation rod such that movement of the actuation member effectuates corresponding movement of the actuation rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification