Battery powered electrosurgical system
First Claim
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1. An electrosurgical system for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:
- an independent power source comprising a negative voltage source and a positive voltage source;
a radio frequency (RF) power source electrically coupled to the independent power source, wherein the independent power source and the RF power source generate power independently of each other;
an electrosurgical blade electrically coupled to the RF power source, the electrosurgical blade comprising;
an active electrode having a first section and a first tapered section terminating at a first conductor edge;
a first insulation layer having a second tapered section overlaying the active electrode which tapers on a side of the first tapered section to expose the first conductor edge;
a return electrode electrically isolated from the active electrode, the return electrode having a third section and a third taper section terminating at a second conductor edge;
a second insulation layer having a fourth tapered section overlaying the return electrode which tapers on a side of the third tapered section to expose the second conductor edge; and
a passive electrode electrically isolated from the active electrode and the return electrode; and
a holder electrically and mechanically coupled as a unit to the electrosurgical blade and to the RF power source, the holder comprising an electrical connector configured to electrically couple the active electrode and the return electrode to radio frequency power from the RF power source and the negative voltage source and couple the passive electrode to the positive voltage source.
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Abstract
An battery-powered electrosurgical instrument includes a blade having a conductor edge portion and insulation layer with geometric shapes and composition that concentrate electrosurgical energy and reduce or eliminate the production of smoke and eschar and reduce tissue damage, thereby providing more efficient application of electrosurgical energy. The more efficient use of electrosurgical energy permits configuring the system to be battery-powered. The system may be portable or configured as a battery-backup powered system.
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Citations
55 Claims
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1. An electrosurgical system for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:
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an independent power source comprising a negative voltage source and a positive voltage source; a radio frequency (RF) power source electrically coupled to the independent power source, wherein the independent power source and the RF power source generate power independently of each other; an electrosurgical blade electrically coupled to the RF power source, the electrosurgical blade comprising; an active electrode having a first section and a first tapered section terminating at a first conductor edge; a first insulation layer having a second tapered section overlaying the active electrode which tapers on a side of the first tapered section to expose the first conductor edge; a return electrode electrically isolated from the active electrode, the return electrode having a third section and a third taper section terminating at a second conductor edge; a second insulation layer having a fourth tapered section overlaying the return electrode which tapers on a side of the third tapered section to expose the second conductor edge; and a passive electrode electrically isolated from the active electrode and the return electrode; and a holder electrically and mechanically coupled as a unit to the electrosurgical blade and to the RF power source, the holder comprising an electrical connector configured to electrically couple the active electrode and the return electrode to radio frequency power from the RF power source and the negative voltage source and couple the passive electrode to the positive voltage source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A electrosurgical system for conveying electrosurgical power to tissue to achieve a predetermined electrosurgical effect, comprising:
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an independent power source comprising a negative voltage source and a positive voltage source; an inverter electrically coupled to the independent power source; an RF power source electrically coupled to the inverter, wherein the independent power source and the RF power source generate power independently of each other; and an electrosurgical instrument electrically coupled to the RF power source, the electrosurgical instrument comprising; an electrosurgical blade, the electrosurgical blade comprising; an electrically conductive element having a first section and a first tapered section which tapers to a conductor edge, and comprising an active electrode, a return electrode and a passive electrode; and an insulation layer having a second tapered section overlaying the conductive element which tapers near the conductor edge to expose the conductor edge; and a handle electrically and mechanically coupled as a unit to the electrosurgical blade and to the RF power source, the handle comprising an electrical connector configured to electrically couple the active electrode and the return electrode to radio frequency power from the RF power source and the negative voltage source and couple the passive electrode to the positive voltage source. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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47. A portable electrosurgical system kit for use in performing an electrosurgical procedure, comprising:
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an independent power source; an RF power source configured to be electrically coupled to the independent power source, wherein the independent power source and the RF power source generate power independently of each other; an electrosurgical instrument sealed within a sterile package, the electrosurgical instrument comprising; an electrosurgical blade, the electrosurgical blade comprising; an electrically conductive element having a first section and a first tapered section which tapers to a conductor edge, and comprising an active electrode, a return electrode and a passive electrode; and an insulation layer having a second tapered section overlaying the conductive element which tapers near the conductor edge to expose the conductor edge; and a handle coupled to the electrosurgical blade; and a rectifier circuit within the handle and configured to receive RF power from the RF power source and output a negative and a positive DC voltage, wherein the handle is configured to provide the negative DC voltage to the active and return electrodes and the positive DC voltage to the passive electrode. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55)
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Specification