Surgery – Instruments – Means for inserting or removing conduit within body
Patent
1998-01-27
1999-06-22
Buiz, Michael
Surgery
Instruments
Means for inserting or removing conduit within body
604 96, A61F 1100
Patent
active
059138610
ABSTRACT:
A catheter balloon is manufactured and prepared for use by heating a portion of a thermoplastic tube and pressurizing the lumen of the tube to cause the heated tube portion to stretch. Preferably, a central section of the tube portion is heated to a degree greater than the end sections of the tube portions, so that the central section of the tube portion expands to a thinner wall thickness than the end sections of the tube portion. Thus, when this newly formed, integral balloon is expanded within a patient, the central section thereof tends to expand outwardly first, ahead of the end sections. When such a balloon carries a tubular stent within the patient, the early expansion of the central section against a longitudinally centered stent causes a central portion of the stent to expand outwardly first, keeping the stent firmly centered on the balloon as it is expanded by the balloon.
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Buiz Michael
Truong Kevin
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