Multi-mode electrosurgical apparatus
First Claim
1. An electrosurgical apparatus comprising:
- a housing having a passage extending therethrough, the housing having a proximal end and a distal end;
a flow tube having a proximal end and a distal end, the flow tube being disposed in the passage of the housing;
an insulating outer tube having a proximal end and a distal end, the outer tube disposed around the flow tube with the proximal end of the outer tube coupled to the distal end of the housing, the flow tube being movable along a longitudinal axis of the housing and outer tube;
an electrode coupled to the distal end of the flow tube, anda transformer assembly disposed on the proximal end of the housing, the transformer assembly including a first transformer configured to receive electrosurgical energy at a first predetermined value from an electrosurgical generator and an external input configured to receive electrosurgical energy at a second predetermined value from the electrosurgical generator, the transformer assembly further including a first switch for selectively coupling at least one of the first transformer and the external input to the electrode for providing electrosurgical energy thereto.
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Accused Products
Abstract
A multi-mode electrosurgical apparatus for use in cold plasma applications, electrosurgical cutting, electrosurgical coagulation and mechanical cutting is provided. The electrosurgical apparatus includes a housing having a passage extending therethrough, an electrically conducting tube being disposed in the passage of the housing; an insulating outer tube disposed around the electrically conducting tube coupled to the housing, the electrically conducting tube being movable along a longitudinal axis of the housing and outer tube; an electrically conducting blade coupled to the distal end of the electrically conducting tube, and a transformer assembly disposed on a proximal end of the housing, the transformer assembly including a first transformer and a first switch for selectively coupling the first transformer and an external second transformer to the electrically conducting tube for providing electrosurgical energy thereto.
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Citations
24 Claims
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1. An electrosurgical apparatus comprising:
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a housing having a passage extending therethrough, the housing having a proximal end and a distal end; a flow tube having a proximal end and a distal end, the flow tube being disposed in the passage of the housing; an insulating outer tube having a proximal end and a distal end, the outer tube disposed around the flow tube with the proximal end of the outer tube coupled to the distal end of the housing, the flow tube being movable along a longitudinal axis of the housing and outer tube; an electrode coupled to the distal end of the flow tube, and a transformer assembly disposed on the proximal end of the housing, the transformer assembly including a first transformer configured to receive electrosurgical energy at a first predetermined value from an electrosurgical generator and an external input configured to receive electrosurgical energy at a second predetermined value from the electrosurgical generator, the transformer assembly further including a first switch for selectively coupling at least one of the first transformer and the external input to the electrode for providing electrosurgical energy thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electrosurgical apparatus comprising:
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an electrosurgical generator coupled to an electrical power supply configured to generate electrosurgical energy, the electrosurgical generator including a step-down transformer coupled to the electrical power source and a first step-up transformer coupled to an output of the step-down transformer; and a handpiece including; a housing having a passage extending therethrough, the housing having a proximal end and a distal end; a flow tube having a proximal end and a distal end, the flow tube being disposed in the passage of the housing; an insulating outer tube having a proximal end and a distal end, the outer tube disposed around the flow tube with the proximal end of the outer tube coupled to the distal end of the housing, the flow tube being movable along a longitudinal axis of the housing and outer tube; an electrode coupled to the distal end of the flow tube, and a transformer assembly disposed on the proximal end of the housing, the transformer assembly including a second step-up transformer coupled to an output of the step-down transformer and a first switch for selectively coupling at least one of the first step-up transformer and the second step-up transformer to the electrode for providing electrosurgical energy thereto. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An electrosurgical apparatus comprising:
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a housing having a passage extending therethrough, the housing having a proximal end and a distal end; a flow tube having a proximal end and a distal end, the flow tube being disposed in the passage of the housing; an insulating outer tube having a proximal end and a distal end, the outer tube disposed around the flow tube with the proximal end of the outer tube coupled to the distal end of the housing, the flow tube being movable along a longitudinal axis of the housing and outer tube; an electrode coupled to the distal end of the flow tube, and an transformer assembly disposed on the proximal end of the housing, the transformer assembly including a first transformer configured to receive electrosurgical energy at a first predetermined value from an electrosurgical generator and an external input configured to receive electrosurgical energy at a second predetermined value from the electrosurgical generator, the transformer assembly further including a first switch for selectively coupling at least one of the first transformer and the first external input to the electrode for providing electrosurgical energy thereto, wherein the first transformer outputs electrosurgical energy to the electrode having a higher voltage than the electrosurgical energy of the external input.
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24. An electrosurgical apparatus comprising:
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a step-down transformer coupled to an electrical power source; a first step-up transformer coupled to an output of the step-down transformer and configured to generate electrosurgical energy at a first predetermined value; a second step-up transformer coupled to an output of the step-down transformer and configured to generate electrosurgical energy at a second predetermined value and a handpiece including; a housing having a passage extending therethrough, the housing having a proximal end and a distal end; a flow tube having a proximal end and a distal end, the flow tube being disposed in the passage of the housing; an insulating outer tube having a proximal end and a distal end, the outer tube disposed around the flow tube with the proximal end of the outer tube coupled to the distal end of the housing, the flow tube being movable along a longitudinal axis of the housing and outer tube; an electrode coupled to the distal end of the flow tube, and a first switch for selectively coupling at least one of the first step-up transformer and the second step-up transformer to the electrode for providing electrosurgical energy thereto.
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Specification