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US 2002/0173776 A1Published application
Surgical instrument
AssigneeGyrus Medical Limited
InventorsKester J. Batchelor, Julian M. Ebbutt
Life of this patent
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AssigneeGyrus Medical Limited
InventorsKester J. Batchelor, Julian M. Ebbutt
Estimating the term…
A surgical instrument comprising an elongate hollow probe (1) having first and second apertures (4 and 5) at its distal end portion. An elongate drive shaft is disposed within the probe (1) and is mounted for rotation about its longitudinal axis within the probe. A cutting tool (2, 34) is located at the distal end of the drive shaft, and is positioned adjacent to the first aperture (4). A bipolar electrosurgical device (3) is located at the distal end of the probe (1) in the region of the second apertures (5). The electrosurgical device includes an active electrode (13) and a return electrode (11) separate and insulated therefrom. A motor (6) is provided for rotating the drive shaft; and suction means is provided for selectively providing a source of suction at either the first aperture (4) or the second apertures (5).
A surgical instrument comprising an elongate hollow probe having an apertured region at its distal end portion, an elongate drive shaft disposed within the probe and mounted for rotation about its longitudinal axis within the probe, a cutting tool located at the distal end of the drive shaft and positioned adjacent to the apertured region, an electrosurgical device located at the distal end of the probe, a motor for rotating the drive shaft, and suction means for providing a source of suction at the apertured region for evacuating tissue debris removed by either the cutting tool or the electrosurgical device.
A surgical instrument as claimed in any preceding claim, wherein there is a single active electrode, and a single return electrode, and the active electrode, the insulator and the return electrode are formed with contiguous apertures in alignment with the second aperture.
Dependencies are inferred from the claim text.