METHOD FOR FEEDING A CRYOGENIC AGENT TO A CRYOGENIC INSTRUMENT AND CRYOSURGICAL APPARATUS FOR IMPLEMENTING SAME

摘要

The invention relates to the field of medicine, specifically to methods for feeding a cryogenic agent to a cryogenic instrument, and also to cryosurgical apparatuses.;In accordance with the invention, additionally one forms a loop-shaped main line going out and entering into the reservoir with the cryogenic agent, realizes a circulation of the cryogenic agent into the loop-shaped main line, connects the cryogenic instrument to said loop-shaped main line via the cryogenic conduit and feeds through it the cryogenic agent, wherein a flow rate of the cryogenic agent circulated into the loop-shaped main line must be greater than a flow rate of the cryogenic agent entering into the cryogenic instrument via the cryogenic conduit. A cryosurgical apparatus is used to implement said method.;The technical result of the proposed solution is an increase in the distance over which it is possible to feed the cryogenic agent to the cryogenic instrument from the reservoir with the cryogenic agent while keeping the cryogenic instrument at a low temperature, and an increase in the operating efficiency of the cryosurgical apparatus, namely: the possibility of achieving temperatures as low as −200 and −210° C. when using liquid nitrogen as the cryogenic agent and with a significant distance between the cryogenic instrument and the reservoir with the cryogenic agent.

主权项

1. Method for feeding a cryogenic agent to a cryogenic instrument, wherein one connects the cryogenic instrument to a reservoir with the cryogenic agent via a cryogenic conduit, feeds the cryogenic agent from the reservoir to the cryogenic instrument via the cryogenic conduit, characterized in that one forms a loop-shaped main line going out and entering into the reservoir with the cryogenic agent, realizes a circulation of the cryogenic agent into the loop-shaped main line, connects the cryogenic instrument to said loop-shaped main line via the cryogenic conduit and feeds through it the cryogenic agent, wherein a flow rate of the cryogenic agent circulated into the loop-shaped main line must be greater than a flow rate of the cryogenic agent entering into the cryogenic instrument via the cryogenic conduit.