专利名称：Balloon catheter having enhanced stent
retention
发明人：Juman, Mohamad Ike,Miller, Jay,Play, Edward
J.
申请号：EP99309063.8申请日：19991115公开号：EP1000591B1公开日：20050406
摘要：A balloon catheter and stent delivery system for medical treatment of a patientincludes a balloon inflatable to an inflated shape having a cylindrical working portion, anda deflated shape that is temporarily reformed to enhance longitudinal retention of thestent while the catheter system is advanced or withdrawn. The balloon catheter providesfor uniform expansion of the stent when the balloon is inflated. In addition, the ballooncatheter system can be modified to initiate partial inflation of the proximal and distalends of the stent, to further resist longitudinal motion of the stent during inflation, andto facilitate more effective tacking of the stent. One possible feature of the cathetersystem is that the balloon is pleated in a particular pattern when deflated, whereby thecentral balloon portion carrying the stent has a greater number of pleats than the pillowportions proximal and distal of the stent. Another possible feature is the formation ofsmall channels that facilitate fluid communication from the proximal end of the balloonto the distal end, even when the balloon is deflated. The balloon may be formed toprotrude partially outward among the stent interstices while in its deflated state, furtherenhancing stent position retention. The present invention also protects the leading or
distal end of the stent during advancement, and protects the proximal end of the stentduring any withdrawal of the catheter system.
申请人：CORDIS CORP
地址：US
国籍：US
代理机构：Mercer, Christopher Paul
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