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US 8,137,345 B2Granted
Electrosurgical devices for tonsillectomy and adenoidectomy
AssigneePeak Surgical, Inc.
InventorsRalph I. McNall, III, Kay W. Chang, Paul O. Davison
Life of this patent
Estimating the term…
Abstract
Monopolar electrosurgery devices adapted for resecting tonsil and adenoid tissue. The devices minimize thermal injury by employing a plasma generated by pulsed electrical signals to precisely and effectively cut or coagulate the tissues. Suction may also be applied to the tissues to enhance the cutting, coagulation, and tissue manipulation functions. The devices include an interchangeable tip that may be switched for another tip, depending on which tip may be more suitable for tonsillectomy or adenoidectomy.
Claims24
An electrosurgical device comprising:
- a) an elongate body having a proximal end, a distal end, and defining a lumen for applying aspiration extending therethrough;
- b) a tip having a proximal end, a distal end, and defining a tip lumen fluidly connected to the aspiration lumen at the distal end of the elongate body;
- c) a housing secured to the distal end of the tip and defining an aperture fluidly connected to the tip lumen;
- and
- d) an electrode assembly in the housing and comprising an active electrode,
- wherein the active electrode extends past a remainder of the housing and has a curved portion and an opening defined therethrough, the opening defining an aspiration port.
3 more elements
An electrosurgical device comprising:
- a) an elongate body having a proximal end, a distal end, and defining a lumen for applying, aspiration extending therethrough;
- b) a tip having a proximal end, a distal end, and defining a tip lumen fluidly connected to the aspiration lumen at the distal end of the elongate body;
- c) a housing secured to the distal end of the tip and defining an aperture fluidly connected to the tip lumen;
- and
- d) an electrode assembly in the housing and comprising an active electrode,
- wherein the active electrode is elongated and defining the aspiration port in a central portion thereof, a cutting portion of the active electrode lying adjacent the aspiration port and being elongated and tapering towards its distal portion, wherein the distal portion lies away from a plane defined by a proximal portion of the cutting portion at an angle of at least 20°.
3 more elements
Dependencies are inferred from the claim text.