| 主权项 |
1. A multi-functional ablation device comprising:
a hybrid thermal-cooling system comprising an electrical power supply and a cryogen source, wherein said electrical power supply includes at least one of ultrasound energy, laser light energy, or thermoelectric energy; a longitudinal body having a proximal end and a distal end wherein said proximal end includes an outer sheath having an electrical connection contained therein and connected to said electrical power supply, and wherein said distal end is a closed tip with a thermally conductive surface; an ablation zone positioned within said distal end and defined by said thermally conductive surface; a cryogen supply line disposed through said longitudinal body and interconnected with said cryogen source for generating subzero temperatures; a wall having an inner surface and an outer surface such that said inner surface creates a cryogen return lumen surrounding said cryogen supply line and said outer surface creates an insulative lumen between said wall and said outer sheath, said wall extended circumferentially through said longitudinal body; and one or more heating elements lining an internal surface of said ablation zone of said distal end of said longitudinal body and contacting said thermally conductive surface of said closed tip, said one or more heating elements interconnected with said electrical connection of said longitudinal body for generating hyperthermic temperatures; wherein said ablation zone directs subzero temperatures and hyperthermic temperatures to said thermally conductive surface, and wherein said multi-functional ablation device is configured to provide heat ablation and cryoablation individually or in combination. |
