Anatomical cavity access sealing condit

Details Anatomical cavity access sealing condit Anatomical cavity access sealing condit

1996-07-16

1998-04-21

Rimell, Sam

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604175, 604178, A61B 1734

Patent

active

057412340

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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patent: 3783454 (1974-01-01), Sausse et al.
patent: 4516578 (1985-05-01), Shuffield
patent: 4642101 (1987-02-01), Krolikowski et al.
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patent: 5176697 (1993-01-01), Hasson
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patent: 5250058 (1993-10-01), Miller et al.
patent: 5358488 (1994-10-01), Suriyapa
patent: 5456714 (1995-10-01), Owen

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