Balloon catheter tapered shaft having high strength and flexibility and method of making same
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United States of America Patent
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Feb 26, 2013
Issued Date -
N/A
app pub date -
Jun 15, 2007
filing date -
Jun 30, 2006
priority date (Note) -
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Abstract
A catheter having an elongated shaft with a tubular member which forms at least a portion of the shaft and which is formed of a biaxially oriented thermoplastic polymeric material, and a method of forming the catheter shaft by radially and longitudinally expanding the tubular member to biaxially orient the polymeric material, and, in one embodiment, tapering the tubular member to form a bending stiffness transition. A catheter of the invention has an improved combination of low bending stiffness, high rupture pressure, and high tensile strength, for improved catheter performance.
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