Bipolar scissors for adenoid and tonsil removal
First Claim
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1. An electro surgical instrument comprising:
- a first leg having a first leg conductive shearing surface and a first leg conductive side surface;
a second leg movably mounted to the first leg, the first leg and second leg movable between an open position and a closed position, the second leg having a second leg non-conductive shearing surface, a second leg first conductive surface, and a second leg second conductive surface, wherein contacting portions of the first leg conductive shearing surface and the second leg non-conductive shearing surface define an imaginary shearing plane, the imaginary shearing plane extending beyond the contacting portions substantially parallel to at least one of the second leg non-conductive shearing surface or the first leg conductive shearing surface, wherein the second leg second conductive surface extends at least partially from the second leg into the imaginary shearing plane; and
wherein at least one of the first leg conductive side surface or the first leg conductive shearing surface is configured to be in selective electrical communication with the second leg first conductive surface as the first and second legs are moved toward the closed position, wherein the first leg conductive side surface is in selective electrical communication with the second leg second conductive surface when the first leg conductive shearing surface and the second leg non-conductive shearing surface are contacting.
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Abstract
A bipolar electrosurgical instrument is disclosed for use in excising tissues. The disclosed bipolar electrosurgical instrument includes a pair of jaws or legs having shearing surfaces, one of which is electrically nonconductive. The disclosed bipolar surgical instrument also includes conductive surfaces on the legs which allow energy flux to flow through tissue on a plane other than that defined by the relative shearing surfaces.
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Citations
20 Claims
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1. An electro surgical instrument comprising:
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a first leg having a first leg conductive shearing surface and a first leg conductive side surface; a second leg movably mounted to the first leg, the first leg and second leg movable between an open position and a closed position, the second leg having a second leg non-conductive shearing surface, a second leg first conductive surface, and a second leg second conductive surface, wherein contacting portions of the first leg conductive shearing surface and the second leg non-conductive shearing surface define an imaginary shearing plane, the imaginary shearing plane extending beyond the contacting portions substantially parallel to at least one of the second leg non-conductive shearing surface or the first leg conductive shearing surface, wherein the second leg second conductive surface extends at least partially from the second leg into the imaginary shearing plane; and wherein at least one of the first leg conductive side surface or the first leg conductive shearing surface is configured to be in selective electrical communication with the second leg first conductive surface as the first and second legs are moved toward the closed position, wherein the first leg conductive side surface is in selective electrical communication with the second leg second conductive surface when the first leg conductive shearing surface and the second leg non-conductive shearing surface are contacting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for performing a surgical function, comprising:
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providing an electrosurgical instrument, including; a first leg having a first leg conductive shearing surface and a first leg conductive side surface;
a second leg movably mounted to the first leg, the first leg and second leg movable between an open position and a closed position, the second leg having a second leg non-conductive shearing surface, a second leg first conductive surface, and a second leg second conductive surface, wherein contacting portions of the first leg conductive shearing surface and the second leg non-conductive shearing surface define an imaginary shearing plane, the imaginary shearing plane extending beyond the contacting portions substantially parallel to at least one of the second leg non-conductive shearing surface or the first leg conductive shearing surface, wherein the second leg second conductive surface extends at least partially from the second leg into the imaginary shearing plane; andwherein at least one of the first leg conductive side surface or the first leg conductive shearing surface is configured to be in selective electrical communication with the second leg first conductive surface as the first and second legs are moved toward the closed position, wherein the first leg conductive side surface is in selective electrical communication with the second leg second conductive surface when the first leg conductive shearing surface and the second leg non-conductive shearing surface are contacting; positioning the electrosurgical instrument adjacent target tissue; and moving at least one of the first leg and the second leg toward the other to sever the target tissue disposed therebetween. - View Dependent Claims (18, 19, 20)
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Specification