Wire electrode devices for tonsillectomy and adenoidectomy
First Claim
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1. 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 electrode assembly or a portion thereof defines an aspiration port communicating with the aperture in the housing.
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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.
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Citations
22 Claims
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1. An electrosurgical device comprising:
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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 electrode assembly or a portion thereof defines an aspiration port communicating with the aperture in the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An electrosurgical device comprising:
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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; d) an electrode assembly in the housing and comprising an active electrode, wherein the electrode assembly or a portion thereof defines an aspiration port communicating with the aperture in the housing, wherein the tip is malleable, and wherein the tip includes a plurality of bendable wires extending from the proximal end to the distal end of the tip, whereby the tip is malleably bent and rotated around a longitudinal axis of the elongate body.
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16. An electrosurgical device comprising:
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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; d) an electrode assembly in the housing and comprising an active electrode, wherein the electrode assembly or a portion thereof defines an aspiration port communicating with the aperture in the housing, and wherein the active electrode defines a substantially triangular central opening that is the aspiration port. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method for resecting tissue, comprising the acts of:
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moving an electrode relative to the tissue; applying a pulsed electrical signal to the electrode to form a plasma thereon; cutting or coagulating the tissue with the plasma; wherein the electrode is mounted to a housing defining an aperture which communicates with an aspiration port at the electrode; and applying suction to the aspiration port via the aperture, thereby to suction the cut or coagulated tissue, while moving the electrode relative to the tissue.
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Specification