Hand-controllable switching device for electrosurgical instruments
First Claim
1. A hand-controllable electrical switching device comprising an elongated hollow body composed of electrically insulative material, an elongated electrical conductor positioned longitudinally within the hollow interior of said body and being hollow at one end, a tool inserted lengthwise through one end of said body into said hollow end of said electrical conductor for electrical connection therewith, and at least one electrical lead extending into said body in spaced relation to said electrical conductor;
- and an annular contact member disposed in said body in normally outer, spaced concentric relation to said electrical conductor and connected to said electrical lead, and means resiliently mounting said annular contact member normally away from contact with said electrical conductor and said annular contact member being depressible under hand pressure at any point on the circumference of said body surrounding said annular contact member to cause said annular contact member to move into contact with said electrical conductor.
2 Assignments
0 Petitions
Accused Products
Abstract
A hand-controllable switch for remote control of an electrosurgical instrument is comprised of an elongated hollow body composed of an electrically insulative material with an electrical conductor tube positioned therein, a blade member inserted lengthwise through a bore in connected relation to the conductor tube, and electrical leads terminating in longitudinally spaced relation to one another so that in contacting the conductor tube they are operative to establish distinct electrical power levels. The body is composed of a resilient material in which is resiliently mounted one or more annular switch members which are depressible under hand or finger pressure at any point on their circumferences to effect closure with the electrical conductor tube.
251 Citations
16 Claims
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1. A hand-controllable electrical switching device comprising an elongated hollow body composed of electrically insulative material, an elongated electrical conductor positioned longitudinally within the hollow interior of said body and being hollow at one end, a tool inserted lengthwise through one end of said body into said hollow end of said electrical conductor for electrical connection therewith, and at least one electrical lead extending into said body in spaced relation to said electrical conductor;
- and an annular contact member disposed in said body in normally outer, spaced concentric relation to said electrical conductor and connected to said electrical lead, and means resiliently mounting said annular contact member normally away from contact with said electrical conductor and said annular contact member being depressible under hand pressure at any point on the circumference of said body surrounding said annular contact member to cause said annular contact member to move into contact with said electrical conductor.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hand-controllable switching device adapted for use in controlling the application of electrical current between an electrosurgical generator and a surgical electrode, comprising:
an elongated hollow body composed of electrically insulative material, an elongated hollow tubular electrical conductor positioned in the hollow interior of said body and extending the greater length of said body, a knife provided with a shank portion inserted lengthwise through one end of said body into electrical connection within one end of said tubular electrical conductor, and at least one electrical lead extending through said body in spaced relation to said electrical conductor and;
an annular contact band disposed in said body in normally outer, spaced concentric relation to said electrical conductor and connected to said electrical lead, said body being composed of resilient material, and means for mounting said annular contact band in said body whereby said annular contact band is depressible from outside said body under hand pressure at any point on its circumference into electrical contact with said electrical conductor tube.- View Dependent Claims (9, 10)
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11. A hand-controllable switch for remote control of an electrosurgical instrument comprising:
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an elongated pliable hollow body of electrical insulating material having a longitudinal, tubular electrical conductor centrally disposed therein, a blade inserted lengthwise through a bore at one end of said body into inner concentric connected relation to said electrical conductor, and a pair of electrical leads terminating in longitudinally spaced relation to one another, each of which is operative to establish distinct electrical power levels; and longitudinally spaced contact rings embedded in said body, each said ring connected to one of said leads and disposed in normally outer spaced concentric relation to said electrical conductor, each said ring displaceable under radially inwardly directed pressure to contact said electrical conductor for application of power at a distinct predetermined level to said blade. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification