Abstract: A system, apparatus and method for improved contactless power transfer in implantable devices are provided. In a first aspect, a rechargeable power supply for an intra-corporeal medical device is provided. The apparatus comprises an implantable power receiving device for wirelessly receiving power, and an implantable power storage device. In another aspect, an intra-corporeal medical device comprises a rechargeable power supply, the rechargeable power supply comprising power receiving device for wirelessly receiving power; and a power storage device.

Abstract: In the field of contactless power transfer for medical devices, more specifically, to contactless power transfer for intra-corporeal medical devices, a system and method for transmitting power to a rechargeable power supply are provided, the rechargeable power supply comprising implantable power receiving means, and an implantable power storage means. The system comprises an extra corporeal power transmitting means arranged and configured to supply power to the rechargeable power supply by wirelessly transmitting power to the implantable power receiving means. The system and method are particularly useful in the context of minimally invasive procedures.

Abstract: In the field of contactless power transfer for medical devices, more specifically, to contactless power transfer for intra-corporeal medical devices, a rechargeable power supply for an intra-corporeal medical device comprises an implantable power receiving means for wirelessly receiving power, and implantable power storage means. The implantable power receiving means is arranged and configured to receive power from an extra-corporeal power transmitting means for wirelessly transmitting power. The apparatus is particularly useful in the context of minimally invasive procedures.

Abstract: A device for treating tissue adjacent to a body lumen includes a catheter shaft and an energy emitting assembly. The catheter shaft is insertable into the body lumen and includes a plurality of cooling lumens arranged generally circumjacent a generally central lumen. At least some of the circumjacent cooling lumens are in fluid communication with the central lumen and the energy emitting assembly extends through the central lumen. The central lumen and at least one portion of the energy emitting assembly are configured to direct a flow of cooling fluid about an outer surface of the at least one portion of the energy emitting assembly within the central lumen.

Abstract: A device for treating tissue, via a cooled antenna, within a body is described.

Abstract: Methods and apparatus for sensing pressure are disclosed. One disclosed pressure measuring device comprises a pressure transmission catheter including a stem portion and a sheath fixed to the stem portion. The disclosed sheath comprises a wall defining a cavity that is in fluid communication with a stem lumen defined by the stem portion. The disclosed sheath has a first transverse extent and a second transverse extent that is different from the first transverse extent.

Abstract: Methods and apparatus for sensing pressure are disclosed. One disclosed pressure measuring device comprises a pressure transmission catheter including a stem portion and a sheath fixed to the stem portion. The disclosed sheath comprises a wall defining a cavity that is in fluid communication with a stem lumen defined by the stem portion. The disclosed sheath has a first transverse extent and a second transverse extent that is different from the first transverse extent.