Method and apparatus for tissue dissection
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United States of America Patent
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Feb 29, 2000
Grant Date -
N/A
app pub date -
Oct 5, 1998
filing date -
Oct 5, 1998
priority date (Note) -
In Force
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Abstract
Mechanical retractors for bluntly dissecting tissue at a remote surgical site include extendable element disposed near the distal end of an elongated cannula body with direct mechanical linkage to manual actuators disposed near the proximal end of the cannula body. Individual extendable elements may be arranged in symmetrical or asymmetrical configurations about the central axis of the body for selectively bluntly dissecting bodily tissue in patterns of greater diversity than merely omni-radially as provided by conventional pressurizable balloon tip cannulas.
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