发明名称 |
METHODS AND DEVICES FOR TRANSSEPTAL ACCESS |
摘要 |
Systems and methods for penetrating a tissue membrane to gain access to a target site are disclosed. In some examples, systems and methods for accessing the left atrium from the right atrium of a patient's heart are carried out by puncturing the intra-atrial septal wall. One embodiment provides a system for transseptal cardiac access that includes a guiding catheter, an access catheter and a guidewire. The access catheter may include a tissue penetration member disposed within a housing wherein the tissue penetration member is substantially contained within the housing when in a retracted configuration. When the distal end of the access catheter is disposed adjacent the septal wall, the user can initiate an actuator switch, which may be in a proximal portion of the system, to cause the tissue penetration member to extend through the septal wall. Alternatively, the tissue penetration member can be actuated automatically by a contact trigger mechanism, without initiation by the user, upon contact with the septal wall by a distal contact member which is coupled to the contact trigger mechanism. Such a system may also include an interlock mechanism to prevent triggering of the tissue penetration member at undesirable times during a procedure.
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申请公布号 |
WO2006017061(A3) |
申请公布日期 |
2007.11.15 |
申请号 |
WO2005US23720 |
申请日期 |
2005.06.28 |
申请人 |
SAVACOR, INC.;WHITING, JAMES, S.;NEAL, EIGLER |
发明人 |
WHITING, JAMES, S.;NEAL, EIGLER |
分类号 |
A61F2/06;A61F11/00;A61M5/178 |
主分类号 |
A61F2/06 |
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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