Balloon for blood vessel-dilating catheter
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United States of America Patent
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Jul 12, 1994
Grant Date -
N/A
app pub date -
Oct 6, 1992
filing date -
Oct 8, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A balloon for a blood vessel-dilating catheter is fabricated from a biaxially oriented film of an aromatic polyamide or an alloy thereof. The balloon has a calculated modulus of elasticity of from 70 to 190 kg/mm.sup.2. When the balloon is fabricated from an alloy of an aromatic polyamide, the alloy may contain up to 50% by weight of an aliphatic polyamide. The balloon of the invention is soft and flexible as well as dimensionally stable. Therefore, the balloon catheter has a high trackability, and may be inserted into the blood vessel without inducing any injury in the inner surface of the blood vessel. The balloon of the invention also has a good blood compatibility.
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