发明名称 |
APPARATUS AND METHODS FOR ACCESSING AND REMOVING MATERIAL FROM BODY LUMENS |
摘要 |
Apparatus are provided for accessing and/or removing material from a body lumen. The apparatus includes a tubular sheath including a shaft having a proximal end and an expandable distal end that is expandable between a collapsed configuration and an expanded, tapered configuration. In one embodiment, the expandable member include inner and outer membranes attached together and to the shaft. Optionally, the inner membrane may include a reinforcement layer and/or the outer membrane may have a longer chord length than the inner membrane, to enhance the expandable member expanding such that a distal opening is defined by the expandable member having s a relatively large diameter tapering proximally to a lumen of the shaft. Optionally, the apparatus may include a dilator and/or one or more treatment devices receivable in the lumen of the shaft. |
申请公布号 |
US2011282369(A1) |
申请公布日期 |
2011.11.17 |
申请号 |
US201113022523 |
申请日期 |
2011.02.07 |
申请人 |
KROLIK JEFFREY A.;DREHER JAMES H.;WATANABE GWENDOLYN |
发明人 |
KROLIK JEFFREY A.;DREHER JAMES H.;WATANABE GWENDOLYN |
分类号 |
A61B17/22;A61F2/958;A61M29/00 |
主分类号 |
A61B17/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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