Hyperelastic hose cryoprobe

Abstract

The invention relates to a hyperelastic hose cryoprobe which comprises a probe handle and a probe connecting base, wherein the front end of the probe handle is connected with a hyperelastic air inlet pipe; an outer hose probe casing is sheathed outside the hyperelastic air inlet pipe; the front end of the outer hose probe casing is connected with a cold junction; the front end of the hyperelasticair inlet pipe is arranged in the cold junction; the back part of the front end of the hyperelastic air inlet pipe is bent; the front end of the hyperelastic air inlet pipe is closed; the side wall at the back part of the front end of the hyperelastic air inlet pipe is provided with throttling holes; the hyperelastic air inlet pipe is made of a memory nickel-titanium alloy material; the throttling holes are radial ones; and the bending angle of the bent section at the back part of the front end of the hyperelastic air inlet pipe is 1-179 degrees. The cold junction of the probe can touch the lesion in the bent section of bronchi, thereby widening the treatment range of the hose cryoprobe. When being bent by a doctor, the probe can not be broken easily, thereby prolonging the service life of the probe.

Description

technical field [0001] The invention relates to the technical field of medical equipment, and belongs to a superelastic hose cryoprobe, especially under a bronchoscope, it can be bent to the limit with the endoscope, and after bending, the original shape can be restored under the condition of external force or no external force , to facilitate access to diseased tissue. Background technique [0002] The current flexible tube cryoprobe enters the human body through the endoscope, and can treat the lesion in front of the endoscope port or pick up foreign matter. However, the distribution of the trachea in the lungs of the human body is like a tree, with many curved branches, and there are diseased tissues in the curved tracheal branches that need to be treated. The current flexible tube probe can only be bent by less than 70° with the endoscope, which cannot achieve accurate treatment. treatment of these diseased tissues. During the operation, the doctor may bend the hose pr...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies that the current flexible tube cryoprobe is easy to break, cannot be bent to the limit with the endoscope, and cannot touch the curved tracheal lesion tissue, the present invention provides a superelastic tube cryoprobe, which can be used with the endoscope at will Bending, after the probe is extended out of the endoscope, it can bend itself at an angle, so that it can easily access the diseased tissue for cryotherapy; after bending, it can return to its original shape with or without external force, so that it can enter and exit the endoscope conveniently

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