发明名称 |
SYSTEMS AND METHODS FOR REGULATING PRESSURE LEVELS IN AN INTER-EXPANSION-ELEMENT SPACE OF A CRYOABLATION SYSTEM |
摘要 |
A cryoablation catheter assembly includes a catheter having a coolant outtake region and receives a guide tube and a coolant transfer tube. The coolant transfer tube receives and transfers coolant from a coolant source to an expansion element coupled to a distal portion of the catheter. The expansion element includes an outer layer disposed over an inner layer such that the expansion element defines an inter-expansion-element space between the inner layer and the outer layer and an intra-expansion-element space within the inner layer. The intra-expansion-element space is in fluid communication with the coolant outtake region and the coolant transfer tube. The inter-expansion-element space is in fluid communication with a fluid pathway that transfers fluids to a fluid-drawing source. A pressure regulation system is disposed along the fluid pathway and passively regulates the pressure in the inter-expansion-element space using at least one check valve.
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申请公布号 |
US2011028960(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
US20100847552 |
申请日期 |
2010.07.30 |
申请人 |
BOSTON SCIENTIFIC SCIMED, INC. |
发明人 |
TIN REBECCA |
分类号 |
A61B18/02 |
主分类号 |
A61B18/02 |
代理机构 |
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