Anal fistula plug which is insusceptible to dropping

An anal fistula, not easy technology, applied in the field of anal fistula plugs that are not easy to fall off, can solve the problems of falling off and operation failure, and achieve the effect of preventing operation failure

Inactive Publication Date: 2013-12-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the anal fistula plug generally adopts a conical configuration, but postoperative follow-up investigations show that due to its configuration characteristics, it is easy to cause it to fall off during use, resulting in surgical failure.

Method used

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  • Anal fistula plug which is insusceptible to dropping

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] Referring to the accompanying drawings, an anal fistula plug that is not easy to fall off includes a conical frustum implantation section 3, the large end surface of the implantation section 3 is connected to one end of the plug body section 2, and the other end of the plug body section 2 is connected to the bottom surface of the cylinder suture area 1. connect.

[0015] The said plug body section 2 is formed by connecting more than two oblate spheroids 4 .

[0016] The oblate spheroid 4 is formed by intercepting the head and tail sections of a sphere, the width of the oblate spheroid 4 is 45%-50% of the diameter of the sphere, and the diameter of the oblate spheroid 4 is the same as that of the suture area 1 .

[0017] The diameter of the suturing area 1 is the same as the width of the patient's fistula tract, and the length is adjusted according to the numb...

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Abstract

The invention relates to an anal fistula plug which is insusceptible to dropping. The anal fistula plug comprises a circular table body implanting section, wherein the large end face of the implanting section is connected with one end of a plug body section; the other end of the plug body section is connected with a bottom surface of a cylindrical stitching area; the plug body section is formed by connecting more than two oblate spheroids; and the stitching area and the plug body section are made of a small intestinal submucosa or an allogenic biological material. According to the anal fistula plug, a plug body consists of a plurality of oblate spheroids, and the axial self-balancing of uniformly-distributed acting force to which the single oblate spheroid is subjected can be realized, so axial force generated by deformation stretching is generated on the integral plug body section only, and is balanced with 'rectal resting pressure' which acts on the large-end face side of the implanting section to avoid operation failure caused by the dropping of the implanting section. Numerical simulation indicates that the axial component force of the anal fistula plug under weight pressure can be reduced greatly, so that the anal fistula plug is prevented from dropping.

Description

technical field [0001] The invention relates to an anal fistula plug, in particular to an anal fistula plug that is not easy to fall off. Background technique [0002] With the in-depth research on the treatment of anal fistula and the development of biomaterials, people have used different kinds of biomaterials in the treatment of anal fistula in recent years, the most prominent of which is the anal fistula plug method, which not only saves the patient's blood to the greatest extent. The anal sphincter can prevent patients from postoperative anal incontinence, and the postoperative pain is small, and they can quickly return to normal work and life, which is consistent with the current concept of minimally invasive surgery. Therefore, as soon as the anal fistula plug method came out, it was highly respected and became the first-line operation recommended in the guidelines for the treatment of anal fistula and perianal abscess by the American Society of Colorectal Surgery. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12
Inventor 杨舜礼江滨徐峰林敏赵桂平卢天健
Owner XI AN JIAOTONG UNIV
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