发明名称 |
CATHETER WITH EXPANDABLE FLOW AREA |
摘要 |
In at least one embodiment of the present invention, a catheter for insertion into a patient's body is provided. The catheter comprises an elongated member having a proximal portion extending to a distal portion. A lumen is formed through the proximal and distal portions. The elongated member is formed of a polymeric material including shape memory polymers having a first phase transition temperature and a second phase transition temperature that is less than the first phase transition temperature but is greater than about room temperature. The elongated member has a first configuration at about room temperature for insertion into the patient's body and self-configures to a second configuration at a first temperature of at least the second phase transition temperature for fluid communication with the patient's body. At least a portion of the lumen has a larger flow area in the second configuration than in the first configuration. |
申请公布号 |
US2012078186(A1) |
申请公布日期 |
2012.03.29 |
申请号 |
US201013322265 |
申请日期 |
2010.05.21 |
申请人 |
TEKULVE KURT JOHN;KURRUS MICHAEL ROBERT;COOK MEDICAL TECHNOLOGIES LLC |
发明人 |
TEKULVE KURT JOHN;KURRUS MICHAEL ROBERT |
分类号 |
A61L29/04;A61B17/34 |
主分类号 |
A61L29/04 |
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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