Novel thread tensioning device for anal fistula

Abstract

The invention discloses a novel thread tensioning device for the anal fistula. The thread tensioning device comprises an elastic biological thread and a locking part, and the locking part is used forcontracting and tightening the two ends of the biological thread; the biological thread is designed to be hollow, multiple needle hole vents are distributed in the surface of the biological thread andcommunicated with the hollow part of the biological thread, and the needle hole vents are not distributed in the same surface of the biological thread. The novel thread tensioning device for the analfistula can achieve an analgesia effect in the thread tensioning process.

Description

technical field [0001] The invention relates to a thread tightening device, in particular to a novel anal fistula thread tightening device. Background technique [0002] High complex anal fistula is one of the refractory diseases in colorectal surgery. In my country, the incidence of anal fistula accounts for 1.7-3.6% of the number of anorectal diseases, while in foreign countries the incidence rate is 8.6 / 100,000. Among them, high complex anal fistula patients It accounts for about 10% of all anal fistulas. At present, surgery is the main method for the treatment of high complex anal fistula, but the postoperative recurrence rate is still high. Therefore, the treatment of high complex anal fistula is a thorny problem for anorectal physicians. According to clinical practice, the difficulty in the treatment of high complex anal fistula lies in the contradiction between protecting anal function and reducing the recurrence rate. Although various sphincter-preserving surgical m...

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Problems solved by technology

[0006] 2. The fine function of the anus is not protected: Although the cutting and hanging thread therapy can theoretically avoid the risk of anal function damage and fecal incontinence, some patients still have different degrees of anal function damage

Therefore, foreign countries use drainage hanging thread, that is, virtual hanging thread to reduce the damage to the anus. Only the traditional drainage principle of cutting hanging thread is used, and the anal sphincter is not cut off, which protects the function of the anus to the greatest extent. However, according to the long-term follow-up results, The treatment effect is not satisfactory, and the recurrence rate is high

It has been reported in the literature that the cure rate of treating high anal fistula with virtual hanging thread is only between 20-40%. Although other methods such as bioprotein glue are used at the same time, the cure rate has not increased significantly.

[0007] 3. Significant postoperative pain: The postoperative thread tightening process is too cumbersome. During and after thread tightening, due to the cutting effect of the rubber band on the tissue, the resulting pain is severe, which is unimaginable for ordinary people.

Especially when changing the dressing and tightening the line, patients are often afraid of changing the dressing and have doubts about the level of modern medical care

[0008] 4. It is difficult to standardize the operation standard of thread tightening: although thread hanging therapy has obvious advantages in the treatment of high anal fistula, unfortunately, there is no unified and operable thread hanging scheme at present. The time and tightness of the thread are mostly based on the clinical experience of various experts. Although it has guiding significance for clinical practice, it still lacks the basis of evidence-based medicine and fine anatomical and pathological support, and there is no long-term clinical efficacy observation.

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