Self-locking clamping head device of great saphenous vein stripping catheter

Abstract

The invention discloses a self-locking clamping head device of a great saphenous vein stripping catheter. The device comprises a clamping head nut and a self-locking screw, a jamming position is arranged at the top of the self-locking screw, a self-locking thread is arranged in the middle of the outer side of the self-locking screw, a taper guiding piece is arranged at the lower end of the self-locking screw, and a longitudinal assembling groove is formed in the inner side of the self-locking screw; a longitudinal inner thread matched with the self-locking screw is arranged in the middle of the inner side of the clamping head nut, a taper groove is formed in the lower end of the inner side of the clamping head nut, a round hole concentric with the longitudinal assembling groove of the self-locking screw is formed in the bottom of the clamping head nut, and the round hole is communicated with the taper groove. The self-locking clamping head device is simple in structure, a blood vessel and a stripping head are fixed with an arc clamping head nut body and the self-locking screw, operation threads used in traditional operations are substituted for fixing the blood vessel and the stripping head, the working efficiency can be effectively improved, operation time can be effectively shortened, and patient pains can be alleviated.

Description

technical field [0001] The invention relates to a small medical auxiliary device, in particular to a self-locking chuck device for a great saphenous vein stripping catheter. Background technique [0002] At present, in the clinical treatment of saphenous varicose veins, the commonly used surgical therapy is to ligate the varicose veins and completely strip them. The traditional surgical method is to remove the varicose veins through multiple incisions from the root of the thigh to the inner part of the calf. It has the disadvantages of large trauma, more pain for patients, long hospital stay, many scars, and poor cosmetic effect. Disposable vein stripping devices currently on the market do not have a special anti-self-locking design for their clips, so the operation is cumbersome during use, and the success rate of one-time stripping is low, resulting in the phenomenon that the stripped blood vessels are pulled off. Doctors It is necessary to make an incision again at the p...

AI Technical Summary

Problems solved by technology

[0002] At present, in the clinical treatment of saphenous varicose veins, the commonly used surgical therapy is to ligate the varicose veins and completely strip them. The traditional surgical method is to remove the varicose veins through multiple incisions from the root of the thigh to the inner part of the calf. There are disadvantages of large trauma, more pain for patients, longer hospital stay, more scars, and poor cosmetic effect

Disposable vein stripping devices currently on the market do not have a special anti-self-locking design for their clips, so the operation is cumbersome during use, and the success rate of one-time stripping is low, resulting in the phenomenon that the stripped blood vessels are pulled off. Doctors It is necessary to make an incision again at the part of the extraction for stripping, which is likely to cause damage to the surrounding tissue and nerves, which increases the pain of the patient and prolongs the operation time

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