Surgical instrument
First Claim
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1. A bipolar radio frequency electrosurgical instrument comprising at least first and second tissue-contacting electrodes, at least one of the electrodes being coated with a PTC material.
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Abstract
An electrosurgical instrument for use in cutting and/or coagulating tissue includes one or more electrode surfaces coated with a material having a positive temperature coefficient of impedance. The PTC coating acts to control the temperature of the electrodes and to reduce the incidence of tissue becoming adhered to the electrode surface. Examples of electrosurgical instruments employing such coated electrodes include forceps, scissors or scalpel blade instruments.
1917 Citations
9 Claims
- 1. A bipolar radio frequency electrosurgical instrument comprising at least first and second tissue-contacting electrodes, at least one of the electrodes being coated with a PTC material.
- 5. A bipolar radio frequency electrosurgical instrument comprising at least first and second electrodes, each of the first and second electrodes having a tissue-contacting surface, the tissue-contacting surface of at least one of the electrodes being provided by a PTC material.
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Current AssigneeGyrus Medical Incorporated (Olympus Corporation)
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Original AssigneeGyrus Medical Incorporated (Olympus Corporation)
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InventorsGoble, Colin Charles Owen, Marshall, Mark George
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Application NumberUS10/334,011Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current606/48CPC Class CodesA61B 18/1445 at the distal end of a shaf...
