| 主权项 |
1. An ablation device comprising:
a probe comprising:
an outer tube having a first exterior surface, the first exterior surface comprising a proximal end and a distal end, and a pointed tip defined at the distal end;a first interior surface, the first interior surface defining a first internal passage, the first internal passage having an inner tube disposed therein, the inner tube comprising a second exterior surface and a second interior surface, the second interior surface defining a second internal passage, the second internal passage having an opening at a distal end thereof; anda filament disposed in the second internal passage, the filament having a distal end proximate the opening, and configured to release a pressurized material into at least the second internal passage the pressurized material adapted to cool at least a portion of the first exterior surface of the outer tube to a selected temperature; wherein the ablation device further comprises an air gap between at least a portion of the second exterior surface of the inner tube and the first internal passage so as to insulate the at least the portion of the second exterior surface from the select selected temperature; and wherein the pointed tip is configured for piercing, pushing through, and ablating at least one of nerve and soft tissue. |
