Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Reexamination Certificate
2002-11-21
2008-10-07
Sirmons, Kevin C. (Department: 3767)
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
Reexamination Certificate
active
07431711
ABSTRACT:
Certain embodiments of the present invention provide a series of surgical instruments utilizing liquid jets for cutting, ablating, debriding, washing, etc., tissues and/or other materials from the interior and/or exterior surface of the body of a patient. Certain embodiments of the surgical instruments provided according to the invention utilize a channel positioned adjacent to and downstream of a liquid jet-forming nozzle such that at least a portion of the passes at least one of within the channel and adjacent to and along the length of at least a portion of a longitudinally-oriented opening in the channel, when the instrument is in operation. The use of such channels in certain embodiments of the inventive surgical instruments can enable the instruments to provide enhanced control over the depth and degree of cutting and/or ablation of tissue; and/or can provide improved and enhanced functionality for cleaning, debriding, and/or trimming and cutting a tissue surface; and/or can provide longer effective liquid jet beam cutting/ablation lengths by reducing the degree of dispersion of the jet along its length.
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Bromander Edward J.
Freeman, Jr. Donald C.
Moutafis Timothy E.
HydroCision, Inc.
Lahive & Cockfield LLP
Sirmons Kevin C.
Witczak Catherine N
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