Introducer sheath and method of manufacture
First Claim
1. A medical device delivery system comprising:
- an introducer sheath comprising;
an elongated tubular member having a passageway extending generally longitudinally therethrough, the passageway being defined by an inner surface of the tubular member and configured to receive a medical device moveably disposed therein;
an inner catheter slidably disposed within the passageway of the introducer sheath; and
a medical device disposed within a distal portion of the introducer sheath and axially supported by the inner catheter,wherein at least a portion of the inner surface of the introducer sheath comprises a non-uniform surface configured to reduce surface contact with an outer surface of the medical device.
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Accused Products
Abstract
The present invention relates to a medical device delivery system. The delivery system includes an introducer sheath having an elongated tubular member having a passageway extending generally longitudinally therethrough. The passageway is defined by an inner surface of the tubular member and is configured to receive a medical device moveably disposed therein, where at least a portion of the inner surface of the inner tube comprises a non-uniform surface configured to reduce surface contact between the inner surface and the medical device. The delivery system includes an inner catheter configured to slidably extend throughout the passageway of the introducer sheath. A prosthesis is disposed within a distal portion of the introducer sheath, where the prosthesis is supported within the introducer sheath by the inner catheter.
43 Citations
26 Claims
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1. A medical device delivery system comprising:
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an introducer sheath comprising; an elongated tubular member having a passageway extending generally longitudinally therethrough, the passageway being defined by an inner surface of the tubular member and configured to receive a medical device moveably disposed therein; an inner catheter slidably disposed within the passageway of the introducer sheath; and a medical device disposed within a distal portion of the introducer sheath and axially supported by the inner catheter, wherein at least a portion of the inner surface of the introducer sheath comprises a non-uniform surface configured to reduce surface contact with an outer surface of the medical device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17)
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12. An introducer sheath, comprising:
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an elongated tubular member having a passageway extending generally longitudinally therethrough, the passageway being defined by an inner surface of the tubular member and configured to receive a medical device moveably disposed therein; wherein at least a portion of the inner surface comprises a non-uniform surface configured to reduce surface contact between the inner surface and the medical device. - View Dependent Claims (14, 16, 18, 19, 20, 22, 25, 26)
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21. A method of providing non-uniform surface to an introducer sheath, comprising the steps of:
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providing a mandrel having a non-uniform outer surface along at least a distal portion thereof; disposing a tubular member over the mandrel; and applying heat to at least one of the tubular member and the mandrel to a temperature sufficient to allow an inner surface of the tubular member to at least partially adopt the non-uniform outer surface of the mandrel - View Dependent Claims (23, 24)
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Specification