Device for treating living tissue with an electric current
First Claim
1. A device for treating living tissue with an electrical current from a power source, comprising in combination:
- a substantially cylindrical body member having a first end and a second end;
a sleeve, having one end disposed within said second end of said body member and a terminal end extending therefrom;
means for fixably mounting said one end of said sleeve within said second end of said body member;
a piston, slidaby mounted relative to said body member and slidably received within said sleeve;
urging means for urging said piston to a first position relative to said body member and said sleeve;
means for moving said piston to a second position relative to said body member and said sleeve against said urging means;
a first and a second electrode element;
means for mounting at least one of said first and second electrode elements, for movement in accordance with the movement of said piston;
means to control the divergence and convergence of said first and second electrode elements upon a reciprocating longitudinal movement of said piston;
said first and second electrode elements disposed to grasp the living tissue when said piston is in said first position and disposed to release the living tissue when the piston is in said second position; and
means for connecting said first and second electrode elements to the electrical power source to provide an electrical current flow relative to the living tissue;
said connecting means including switch means mounted on said body member and means mounted on said piston cooperating with said switch means, to allow said electrical current flow only when said piston is in said first position.
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Accused Products
Abstract
A device is disclosed for use in a laparoscopic tubal cauterization for blocking the fallopian tubes of a patient. The device comprises a substantially tubular body member having a piston slidably mounted therein. A spring urges the piston to a first position relative to the body member. A button extends from one end of the body member for moving the piston to a second position against the urging of the spring. First and second electrodes are incorporated for either monopolar or bipolar treatment of the living tissue. The first and second electrodes are disposed to grasp the living tissue when the piston is in the first position and to release the living tissue when the piston is in the second position. The invention includes a circuit breaker for terminating continuity when the piston is disposed in the second position. An activating switch is disabled when the piston is in the second position. The invention provides a dual series switch system of circuit interruption when the electrodes release the living tissue.
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Citations
19 Claims
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1. A device for treating living tissue with an electrical current from a power source, comprising in combination:
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a substantially cylindrical body member having a first end and a second end; a sleeve, having one end disposed within said second end of said body member and a terminal end extending therefrom; means for fixably mounting said one end of said sleeve within said second end of said body member; a piston, slidaby mounted relative to said body member and slidably received within said sleeve; urging means for urging said piston to a first position relative to said body member and said sleeve; means for moving said piston to a second position relative to said body member and said sleeve against said urging means; a first and a second electrode element; means for mounting at least one of said first and second electrode elements, for movement in accordance with the movement of said piston; means to control the divergence and convergence of said first and second electrode elements upon a reciprocating longitudinal movement of said piston; said first and second electrode elements disposed to grasp the living tissue when said piston is in said first position and disposed to release the living tissue when the piston is in said second position; and means for connecting said first and second electrode elements to the electrical power source to provide an electrical current flow relative to the living tissue;
said connecting means including switch means mounted on said body member and means mounted on said piston cooperating with said switch means, to allow said electrical current flow only when said piston is in said first position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification