Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1996-03-28
1999-12-07
Mendez, Manuel
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
A61M 5178
Patent
active
059975083
ABSTRACT:
An expandable percutaneous introducer sheath is disclosed which can be selectively enlarged to accommodate a range of sizes of interventional devices. The introducer sheath can retain an enlarged size without requiring an additional support member. The introducer sheath comprises an outer tube which contains expandable gaps along the length of the outer tube, expandable leaflets which are connected to the outer tube, an inner tubular member which is insertable into the outer tube, and a detent means to retain the enlarged size of the outer tube. The outer tube has a cross-sectional profile which is both kink resistant and minimizes the size of the puncture wound in the vasculature by providing a helix in the outer tube. An inner tubular member is inserted into the lumen of the outer tube and, because of the interference fit of the lumen outer tube to the outer diameter of the inner tubular member, the lumen of the outer tube enlarges at the expandable gaps.
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Conner Steven B.
Lunn Peter A.
Brin David S.
Latham Dianne Plunkett
Medtronic Inc.
Mendez Manuel
Patton Harold R.
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