TISSUE PAD FOR ULTRASONIC SURGICAL INSTRUMENT
First Claim
1. A tissue pad for use in an ultrasonic clamp coagulator, comprising:
- a) a first tissue pad portion, the first tissue pad portion having a distal end a proximal end, a tissue engaging surface and a cavity having an opening coinciding with the tissue engaging surface.
4 Assignments
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Accused Products
Abstract
An ultrasonic clamp coagulator assembly that is configured to permit selective cutting, coagulation and clamping of tissue during surgical procedures. An elongated portion of the instrument can be configured for endoscopic applications and has an outside diameter of less than 6 mm. The construction includes a clamping mechanism, including a clamp arm pivotally mounted at the distal portion of the instrument, which is specifically configured to create a desired level of tissue clamping forces. The clamping mechanism includes a two-piece pad design and pad material that enables the higher tissue clamping forces and a force-limiting mechanism that effectively smoothes out abusive tissue forces.
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Citations
24 Claims
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1. A tissue pad for use in an ultrasonic clamp coagulator, comprising:
a) a first tissue pad portion, the first tissue pad portion having a distal end a proximal end, a tissue engaging surface and a cavity having an opening coinciding with the tissue engaging surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A tissue pad for use in an ultrasonic clamp coagulator, comprising:
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a) a first tissue pad portion, the first tissue pad portion made from a composition comprising of PTFE, the first tissue pad portion having first and second ends, a tissue engaging surface and a cavity positioned at the second end; and b) a second tissue pad portion contained with the cavity, the second tissue pad portion made from a composition comprising of a polyimide and having a tissue engaging surface and sized for mounting within the cavity. - View Dependent Claims (19, 20, 21, 24)
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22. A tissue pad for use in an ultrasonic clamp coagulator, comprising:
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a) a first tissue pad portion, the first tissue pad portion made from a composition comprising PTFE, the first tissue pad portion having first and second ends, a rough tissue engaging surface disposed therebetween and a cavity at the second end; and b) a second tissue pad portion, the second tissue pad portion made from a composition comprising a polyimide, the second tissue pad portion having a smooth tissue engaging surface and disposed within the cavity. - View Dependent Claims (23)
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Specification