System, device and method for ablation of a vessel's wall from the inside

摘要

The current invention concerns systems, devices and methods for the ablation of a vessel's wall from the inside, more specifically to implant devices and to the ablation of the wall of one or more pulmonary veins (PV) from the inside, preferably transmural ablation and preferably at the level of the antrum. Hereby, one or more implant devices can be implanted in the vessels and can subsequently be heated by external energy-providing means.

主权项

1. Method for heating one, two or more implant devices which are suitable to be implanted in one, two or more vessels, comprising the steps of:
positioning said one, two or more implant devices, subsequently in time in a case where two or more implant devices are to be positioned, in said one, two or more vessels by means of a sheath and a guidewire, said implant devices each comprising an ablation region along at least a portion of their length, said ablation region subtending at least a substantially complete circumferential band or a substantially spiraling band, said implant devices effective for ablating a signal-blocking path within said vessels by increasing the temperature of the ablation region of the implant devices upon application of energy to said implant devices; retracting the sheath and guidewire; heating the ablation region of said implant devices by external energy-providing means which are spatially separated from said implant devices wherein said heating occurs after said sheath and guidewire are retracted, and whereby said heating of said implant devices occurs simultaneously in the case where two or more implant devices are positioned, and wherein at least one of the implant devices comprises an anchoring means for anchoring said at least one of the implant devices within the vessel upon positioning said at least one of the implant devices, and wherein said at least one of the implant devices comprises a thermally isolating connection between the ablation region and the anchoring device, wherein the thermally isolating connection thermally insulates by thin straps or wires attaching the anchoring device to the ablation region.