Patent ID: 6142991
Filing Date: 2000-11-07
Classification: A61B

Abstract:
A high resolution cryosurgical method for treating an organ of a patient, the method comprising the steps of:(a) providing a three dimensional imaging device and three-dimensionally imaging at least a portion of the organ so as to provide a three dimensional grid of at least said portion of the organ and to determine boundaries of a tissue segment of the organ for treatment;(b) providing a guiding element including an array of guiding apertures, each of said guiding apertures being adapted for insertion and guidance of a cryosurgical probe there through, and based on information extractable from said three dimensional grid of at lest said portion of the organ positioning said guiding element with respect to the patient;(c) introducing through selected guiding apertures of said guiding element a plurality of cryosurgical probes into the organ, each of said cryosurgical probes being inserted to a desired depth and having a substantially small diameter, said probes being distributed across and along the organ, so as to form a three dimensional arrangement of probe heads in the organ, said arrangement of probe heads is selected such that by producing an ice-ball at a head of said probe heads said tissue segment of the organ locally freezes while minimizing damage to surrounding tissues; and(d) producing said ice-ball at said head of each of said cryosurgical probes, so as to locally freeze said tissue segment of the organ, while minimizing damage to said surrounding tissues.