The returns style or freezing which leads introductions style deeply supply of the goolant gas to the needle and/or control for removing, and high solid freezing deeply the needle and soft freezing deeply the freezing surgical instrument tool which possesses at least one socket for installing the needle specifies. The said freezing surgical instrument tool, inside the return diversion pipe, needs the counterflow pressure which high solid freezing deeply in case of the needle differs. Freezing deeply the socket and the plug of the needle form each probe connection section. Purpose of this invention, training the operator and the occasion where plug in it makes unrelated, high solid freezing deeply the needle and freezing to which soft freezing deeply the needle corresponds is deep, (the valve to be attached or without valve in order to evade a dangerous state where excess of maximum job place density of the cooling vapor where by the return diversion pipe which is suited for the needle automatically, the latent damage to the needle because of this, deeply deeply to the ambient air of the operation room) it is connected freezing the needle and especially soft freezing evades in addition is discharged is included, there are times when freezing surgical instrument tool is developed.リターン流又は導入流を通じた凍結深針への冷却ガスの供給及び/又は除去のための制御、及び硬質凍結深針及び軟質凍結深針の取付けのための少なくとも1つのソケットを有する凍結外科用器具が特定される。該凍結外科用器具は、リターン流用導管内で、硬質凍結深針の場合とは異なる逆流圧力を必要とする。凍結深針のソケット及びプラグは各々探針結合部を形成する。本発明の目的は、操作者のトレーニングと無関係に、プラグインされた際に、硬質凍結深針及び軟質凍結深針が対応する凍結深針に適した(弁付きまたは弁なしの)リターン流用導管に自動的に接続され、これにより凍結深針、特に軟質凍結深針への潜在的な損害を回避し、また手術室の周囲空気へ放出された冷却気体の最大作業場所濃度の超過を含む危険状態を回避するように、凍結外科用器具を開発することにある。
