Nonstick conductive coating
First Claim
1. In an electrosurgical cutting blade having deposited thereon electrodes for contacting tissue and carrying electrical source generated hemostatic and cauterizing currents thereto, each electrode comprising an electrically conductive non-stick composite coating deposited near the cutting edge thereof including:
- a first coating of electrically conductive material adherently deposited on said blade near the cutting edge, said first coating having an exposed textured surface;
a second coating of nonstick material adherently deposited on said blade at least over said first coating to the extent that the textured surface of said first coating, in the form of a sufficiently roughened mass having interconnected intersticies forming locations for the secure adhesion of the non-stick material therein, is at least partially filled therewith, portions of said first coating in the form of interconnected islands being exposed and conductive, and the second coating imparting non-stick characteristics to the blade.
1 Assignment
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Accused Products
Abstract
In a preferred embodiment, there is provided a conductive non-stick electrode for use with a hemostatic tissue cutting scalpel wherein, a first layer of conductive material having a textured working surface for contacting tissue is adherently deposited along the cutting edge of the scalpel, and a second coating of non-stick material is deposited thereon at least partially filling the textured surface, so that portions of the conductive material are exposed and the electrode is thereby conductive along said working surface but non-sticking while in contact with tissue.
498 Citations
14 Claims
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1. In an electrosurgical cutting blade having deposited thereon electrodes for contacting tissue and carrying electrical source generated hemostatic and cauterizing currents thereto, each electrode comprising an electrically conductive non-stick composite coating deposited near the cutting edge thereof including:
- a first coating of electrically conductive material adherently deposited on said blade near the cutting edge, said first coating having an exposed textured surface;
a second coating of nonstick material adherently deposited on said blade at least over said first coating to the extent that the textured surface of said first coating, in the form of a sufficiently roughened mass having interconnected intersticies forming locations for the secure adhesion of the non-stick material therein, is at least partially filled therewith, portions of said first coating in the form of interconnected islands being exposed and conductive, and the second coating imparting non-stick characteristics to the blade. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- a first coating of electrically conductive material adherently deposited on said blade near the cutting edge, said first coating having an exposed textured surface;
Specification