Scissorlike electrosurgical cutting instrument
First Claim
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1. A scissorlike electrosurgical cutting instrument comprising:
- a first member having at least one cutting edge;
a second member having an anvil surface opposing the cutting edge;
means for maintaining the cutting edge substantially parallel to the anvil surface in which at least one of the first and second members moves relative to the other member between an open and closed position such that the cutting edge comes into substantial contact with the anvil surface when the members are in their closed position;
at least one electrode disposed on or integral with the first member and at least one other electrode disposed on or integral with the second member, at least two of the electrodes being of opposite polarity for providing electrical energy for cauterization of tissue;
isolating means for electrically isolating the first member from the second member; and
scissorlike actuation means for moving the first and second members between the open and closed positions.
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Abstract
Open surgery and endoscopic versions of an electrosurgical cutting instrument incorporating a unique cutting arrangement for opening and closing the cutting edge parallel to an anvil surface resulting in a simultaneous cutting of a linear section of tissue, large vessels, or a group of vessels. Simultaneous with the cutting, the instrument further being capable of either a monopolar or bipolar cauterization of tissue. Also disclosed herein, are methods for use of the various electrosurgical cutting instruments.
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Citations
41 Claims
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1. A scissorlike electrosurgical cutting instrument comprising:
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a first member having at least one cutting edge; a second member having an anvil surface opposing the cutting edge; means for maintaining the cutting edge substantially parallel to the anvil surface in which at least one of the first and second members moves relative to the other member between an open and closed position such that the cutting edge comes into substantial contact with the anvil surface when the members are in their closed position; at least one electrode disposed on or integral with the first member and at least one other electrode disposed on or integral with the second member, at least two of the electrodes being of opposite polarity for providing electrical energy for cauterization of tissue; isolating means for electrically isolating the first member from the second member; and scissorlike actuation means for moving the first and second members between the open and closed positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification