Variable diameter sheath method and apparatus for use in body passages
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United States of America Patent
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Aug 10, 1993
Issued Date -
N/A
app pub date -
Nov 24, 1992
filing date -
Mar 3, 1989
priority date (Note) -
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Abstract
A tubular sheath capable of assuming a reduced diameter state for insertion into a body passage and of expanding once in place within the passage. The sheath is fabricated of a composite elastomeric material and axially stretched to assume the reduced diameter state. Selective axial stretching is achieved by an elongate stylet which extends slidably through the sheath for compression imparting engagement with a distal portion thereof.
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