| 摘要 |
<p>A device for cryosurgery comprises a cryoinstrument (1) whose casing (2) has a freezing tip (3) provided with an evaporation chamber (4) connected to channels (5, 6) which are intended for feeding and leading away the cooling agent, are located in the casing (2) and thermally isolated from the walls (7) of the casing (2), the surface of one of the walls of the evaporation chamber (4) being intended to be brought into contact with the biological tissue and serving as the working surface (11) of the freezing tip (3). An electrical-acoustical transducer (12) hermetically mounted into the wall (8) and serving as one of the walls of an individual chamber (18) hermetically isolated from the evaporation chamber (4) and serving as a means (17) for suppresion of acoustic interference.</p> |
