发明名称 |
Methods and apparatus for treating vascular occlusions |
摘要 |
An intravascular catheter system for the treatment of occluded blood vessels that includes tissue displacement or hinged expansion members that are movable from a closed to an open position. An actuating assembly may be provided for moving the tissue expansion members between an open and closed position to exert a substantially lateral distal end force upon the region surrounding an occluded blood vessel. The tissue expansion members may stretch apart, tear or otherwise disrupt a vascular occlusion sufficiently to create a pathway that may support the passage or placement of a guidewire or an interventional vascular device across the occlusion or obstruction. Methods of crossing or displacing a vascular occlusion are further provided that include the positioning of a vascular catheter having at least one hinged spreading member positioned at the distal region of the catheter that is responsive to directed force along the longitudinal axis of the catheter. A directed force is applied to the actuator in order to deploy the spreading member and displace a vascular occlusion creating a path to permit the passage of a guidewire or device therethrough.
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申请公布号 |
US6599304(B1) |
申请公布日期 |
2003.07.29 |
申请号 |
US19990443924 |
申请日期 |
1999.11.19 |
申请人 |
LUMEND, INC. |
发明人 |
SELMON MATTHEW R.;MILO CHARLES F.;WYNNE ROBERT L.;PAI SURESH S.;DELL KENT D.;GRESL CHARLES |
分类号 |
A61B17/00;A61B17/22;A61B17/28;A61B17/32;A61M29/00;(IPC1-7):A61M29/00 |
主分类号 |
A61B17/00 |
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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