| 摘要 |
The present invention provides a catheter (10) with at least one lumen (22) therethrough, and a balloon (16) sealingly engaged in fluid communication with the lumen (22). The balloon (16) has a predetermined folding pattern with at least three collapsible grooves or depressions (20). Upon deflation, the grooves or depressions (20) automatically collapse inward, resulting in a folded configuration which can be twisted into a very low profile configuration. The catheter body (10) preferably is made of polyether ether ketone ("PEEK"), and the fluted balloon (16) preferably is made of polyvinylidine fluoride ("PVDF") and polyurethane.
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