Surgical cryoprobe for treating cryolesions in the sacroiliac joint area

A surgical cryoprobe for treating cryolesions in a sacroiliac joint area, comprising:

• at least a first expansion tube having a first length;
• a second expansion tube having a second length, wherein the second length is different than the first length;
• a first supply tube supplying a cooling agent to the first expansion tube;
• a second supply tube simultaneously supplying another cooling agent, which is different than the cooling agent, to the second expansion tube;
• and
• a drain tube for removing cooling agents from an enclosed working part, wherein the first expansion tube supplies the cooling agent to a first portion of the working part, the second expansion tube supplies the another cooling agent to a second portion of the working part, which is not the first portion of the working part, the working part further including a tip;
• wherein the first expansion tube and the second expansion tube are positioned inside a casing, wherein the first expansion tube, the second expansion tube, and the drain tube are connected to each other by a sleeve, and wherein a sealer positioned on a circumference of the sleeve provides a seal between the sleeve and the casing.