| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical device that relates to cooling of tissue contacted by an invasive probe within the body.SOLUTION: A medical device includes an insertion tube, which has a distal end for insertion into a body of a patient, and a distal tip, which is fixed to the distal end of the insertion tube and is coupled to apply energy to tissue inside the body. The distal tip has an outer surface with a plurality of circumferentially distributed perforations formed therethrough. The perforations have diameters between 10 μm and 25 μm. A lumen passes through the insertion tube and delivers a cooling fluid to the tissue via the perforations. |
