Method for thoracoscopic intracardiac procedures i

专利名称：Method for thoracoscopic intracardiac

procedures including septal defect

发明人：Alex T. Roth申请号：US08/643898申请日：19960507公开号：US06079414A公开日：20000627

摘要：Devices, systems, and methods are provided for accessing the interior of theheart and performing procedures therein while the heart is beating. In one embodiment,a tubular access device having an inner lumen is provided for positioning through apenetration in a muscular wall of the heart, the access device having a means for sealingwithin the penetration to inhibit leakage of blood through the penetration. The sealingmeans may comprise a balloon or flange on the access device, or a suture placed in theheart wall to gather the heart tissue against the access device. An obturator is removablypositionable in the inner lumen of the access device, the obturator having a cutting meansat its distal end for penetrating the muscular wall of the heart. The access device ispreferably positioned through an intercostal space and through the muscular wall of theheart. Elongated instruments may be introduced through the tubular access device intoan interior chamber of the heart to perform procedures such as septal defect repair andelectrophysiological mapping and ablation. A method of septal defect repair includespositioning a tubular access device percutaneously through an intercostal space andthrough a penetration in a muscular wall of the heart, passing one or more instrumentsthrough an inner lumen of the tubular access device into an interior chamber of the heart,

and using the instruments to close the septal defect. Devices and methods for closingthe septal defect with either sutures or with patch- type devices are disclosed.

申请人：HEARTPORT, INC.

代理人：Jeffry J. Grainger,Jens E. Hoekendijk

更多信息请下载全文后查看