Capacitively coupled indifferent electrode
First Claim
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1. A capacitively coupled indifferent electrode for use in electrosurgical procedures comprising:
- a flexible backing sheet;
a thin, flexible electrically conductive foil mounted on said backing sheet;
means for electrically connecting said electrically conductive foil to an electrosurgical current generator; and
a layer of a dielectric material having a thickness between about 0.0005 and 0.001 inches mounted on and completely overlying said electrically conductive foil and forming a skin-contacting surface which is capable of capacitive coupling under electrosurgical conditions, the entire skin contacting surface of said dielectric material having a pressure-sensitive adhesive thereon to secure said indifferent electrode to a patient'"'"'s skin.
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Abstract
A capacitively coupled indifferent electrode for use in electrosurgical procedures is provided which is safe and reliable in use. The electrode includes a backing material, an electrically conductive metal foil adhered to one surface of the pad, a layer of dielectric material completely overlying the foil, and a layer of pressure-sensitive adhesive covering the dielectric layer. The electrode is placed on a patient'"'"'s skin and may be connected to the return side of an electrosurgical generator through a cable which is connected through the backing material to the electrode.
112 Citations
14 Claims
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1. A capacitively coupled indifferent electrode for use in electrosurgical procedures comprising:
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a flexible backing sheet; a thin, flexible electrically conductive foil mounted on said backing sheet; means for electrically connecting said electrically conductive foil to an electrosurgical current generator; and a layer of a dielectric material having a thickness between about 0.0005 and 0.001 inches mounted on and completely overlying said electrically conductive foil and forming a skin-contacting surface which is capable of capacitive coupling under electrosurgical conditions, the entire skin contacting surface of said dielectric material having a pressure-sensitive adhesive thereon to secure said indifferent electrode to a patient'"'"'s skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In a capacitively coupled indifferent electrode for use in electrosurgical procedures including an electrically conductive foil, means for electrically connecting said electrically conductive foil to an electrosurgical generator, a layer of dielectric material overlying said electrically conductive foil and forming a skin-contacting surface, and a backing sheet supporting said electrically conductive foil and said dielectric material, the improvement comprising:
said dielectric material having a thickness of less than about 0.001 inches and equal to or greater than about 0.0005 inches and having a layer of pressure-sensitive adhesive completely covering said skin-contacting surface. - View Dependent Claims (12, 13)
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14. A capacitively coupled indifferent electrode for use in electrosurgical procedures comprising a flexible backing sheet;
- a thin, flexible electrically conductive foil mounted on said backing sheet and defining a skin contacting surface;
means for electrically connecting said electrically conductive foil to an electrosurgical current generator; and
a layer of a dielectric material comprising a pressure sensitive adhesive mounted on and completely overlying said electrically conductive foil and forming a skin-contacting surface which is capable of capacitive coupling under electrosurgical conditions, said pressure sensitive adhesive covering the entire skin contacting surface of said electrically conductive foil to secure said indifferent electrode to a patient'"'"'s skin.
- a thin, flexible electrically conductive foil mounted on said backing sheet and defining a skin contacting surface;
Specification