CN202961481U

CN202961481U - Kidney elastic anal dilator

Info

Publication number: CN202961481U
Application number: CN 201220332365
Authority: CN
Inventors: 陈远光; 刘小红
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-10
Filing date: 2012-07-10
Publication date: 2013-06-05
Anticipated expiration: 2022-07-10

Abstract

A kidney elastic anal dilator is characterized by being providing a kidney round tube with elasticity. The kidney elastic anal dilator is placed in the anus and then automatically restores to the original shape to prop open and dilate the anus after being folded in the vertical axis direction, and is clenched and fixed by sphincter ani; and after the operation is finished, all that is needed is to press the pipe wall inwards, the kidney elastic anal dilator can be folded into be in the state before being placed to be easy to take out. The kidney elastic anal dilator is mainly suitable for dilating the anus through the operation in the anus, and provides an operation passage for operating in the anus, taking out a specimen and injecting medicine and the like.

Description

Kidney-shaped elasticity anal dilator

Technical field

The present invention relates to a kind of kidney-shaped elasticity anal dilator, is a kind ofly to carry out rectum colon resection operation and take out the required anal dilators such as specimen, sterilization, injection, expansion anus for per anum rectum approach.

Background technology

over nearly more than 20 years, per anum Endoscopic Microsurgery (Transanal Endoscopic Microsurgery, TEM), per anum endoscopic surgery (Transanal Endoscopic Operation, TEO) progressively at clinical application, and beginning in the 2010's, the per anum rectum carries out nature tract endoscopic surgery (natural orifice transluminal endoscopic surgery, NOTES) or natural tract take out specimen (natural orifice specimen extraction, NOSE) become again study hotspot and the trend of internal organs resection operation in knot rectum and other abdomens.Making anus dilating keep hollow state is the first step of above operation, and the instrument that adopts at present uses straight tube shape pipe rectoscope body expansion anus take " per anum microsurgery system " as representative.This mirror body adopts metal to make, needs separately to fix with support, and be very inconvenience; And expensive, increased patient's financial burden; The mirror body is nonelastic simultaneously, and diameter is unified is diameter 4cm, can not take out the specimen of larger diameter.Therefore, need a kind of new instruments expansion of research anus badly, can either satisfy above emerging operation needs (comprising the needs that take out the larger specimen of diameter), alleviate operator operation burden, simultaneously cheap again, alleviate patient economy burden.

Summary of the invention

The object of the invention is to TEM, TEO, operation techniques such as NOTES, NOSE for the per anum approach provide a kind of easy to use, need not external force fix, cheap and can take out the anal dilator of the larger specimen of diameter.

To achieve these goals, the technical solution used in the present invention is as follows: kidney-shaped elasticity anal dilator, and employing has elastic macromolecular material makes, cheap, can disposablely use; Its integral body is the kidney-shaped pipe, and slightly inwardly shrink the upper end, and the middle part is eel-like figure shape, and the lower end slightly is wider than the upper end.This mirror can be folding along longitudinal axis before inserting anus, because adding to expand with suitable external force, the elasticity of pipe wall material itself can revert to kidney-shaped after inserting in pipe, the rectum of upper end expansion anus edge top, expansion anus in middle part is also held with a firm grip fixingly by anal sphincter, the lower end struts perianal tissue and assists fixing.For adapting to TEM, TEO, NOTES, NOSE required different working place, kidney-shaped elasticity anal dilator can have different size by its hollow diameters, as take out the larger specimen of diameter namely use with the specimen diameter quite or slightly large diameter dilator.After end of operation, only need tube wall is inwardly exerted pressure, the state that namely can be folded into before inserting takes out easily.This dilator is except TEM, TEO, NOTES, the NOSE etc. that are applicable to the per anum approach perform the operation, and also being applicable to needs temporarily to expand anus etc. after per anum drug-injection in treatment colorectal diseases, gastrointestinal surgery.

Description of drawings

Fig. 1 is kidney-shaped elasticity anal dilator axonometric chart.

Fig. 2 is kidney-shaped elasticity anal dilator top view.

Fig. 3 is that kidney-shaped elasticity anal dilator is along the folding rear cross sectional representation of longitudinal axis.

The specific embodiment

During use, at first kidney-shaped elasticity anal dilator is folding along the longitudinal axis of Fig. 1, area with the diameter reduction direction, top view schematic diagram after folding as shown in Figure 3, after dilator after folding is inserted anus, dilator will suitably revert to shape shown in Figure 1 after the external force expansion under the elastic reaction of pipe wall material itself and in the kidney-shaped pipe of middle part automatically, anus is namely expanded and is fixed in outside the kidney-shaped tube wall of middle part, and the required anus passages such as TEM, TEO, NOTES, NOSE are set up thus.After end of operation, only need tube wall is inwardly exerted pressure, can dwindle into the folded state before inserting as shown in Figure 3, can take out easily.

Claims

1. kidney-shaped elasticity anal dilator, is characterized in that having elastic kidney-shaped pipe, insert anus after can be folding along longitudinal axis, and insert the rear original shape that automatically reverts to and strut the expansion anus.