| 摘要 |
Medical devices for delivering thermal energy to a targeted tissue site through a body lumen followed by the subsequent dilation of the body lumen. The devices of the present invention include a heat source for supplying heat to a tissue region and a delivery instrument, such as a catheter, for positioning the eat source at a plurality of axial locations within a body lumen. The delivery instrument can further include an open distal end and a lumen through which the heat source can be extended. The heat source is extended beyond the distal end to position the heat source for application of heat. The device further includes an expansion element, such as a dilation balloon, for dilating the lumen following application of heat by the heat source. The medical devices of the present invention are particularly suited for transurethral treatment of benign prostate hyperplasie (BPH). |
