Access sealing apparatus and method
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United States of America Patent
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Apr 17, 2012
Issued Date -
N/A
app pub date -
Jun 1, 2010
filing date -
Aug 14, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical access device includes a seal housing and a roller disposed in the housing and defining a working channel. The roller may be stationary or moveable within the seal housing to form both a zero seal in the absence of an instrument, and an instrument seal in the presence of an instrument. Rotation of the roller is contemplated and low-friction surfaces are discussed to reduce instrument insertion forces. Multiple rollers, wiper elements, low-friction braid, pivoting elements and idler rollers are contemplated. The rollers will typically be formed of a gel material in order to facilitate the desired compliance, stretchability and elongation desired.
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Cited Art Landscape
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