Anatomical cavity access sealing condit
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United States of America Patent
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-
Apr 21, 1998
Grant Date -
N/A
app pub date -
Jul 16, 1996
filing date -
Jul 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sealing conduit for use with a portal formed on the body which enable surgical, diagnostic and assistive instruments to be inserted into the body during least invasive medical procedures. The sealing conduit includes an elongated cylindrical member with a continuous central lumen therebetween. A flexible annular lip structure is attached or formed on the inside surface of the cylindrical member which is folded in a retracted position inside the cylindrical member or extended through the distal opening thereof. During use, a penetrating member is disposed inside the cylindrical member which is moved downward to forcibly move the annular lip structure from the retracted to the extended position. When the annular lip structure is in the extended position, distal end of the sealing conduit is located just inside the desired vessel or conduit and outward migration of the sealing conduit through the portal is prevented. An upper flexible ring is disposed around the cylindrical member which is moved by downward thereon by a plurality of suture lines. When the suture lines are pulled, the annular lip structure and flexible ring are squeezed together to securely hold and create a seal around the portal.
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