CN102000390B - anal dilator - Google Patents

Abstract

The invention discloses an anal dilator, which comprises a cylindrical body, a tapered guide part and an outwardly expanded wide side, the guide part is connected to the distal end of the body, and the wide side is connected to the The proximal end of the main body, the anal dilator also includes a cylindrical air bag matched with the main body, the air bag is sleeved on the outer surface of the main body, and the air bag is connected to a fluid through a catheter source. The invention can make the patient's anus and anal canal increase gradually and controllably, and can make the anal sphincter adapt to the range that can be stretched by the anal expander seat before inserting the anal expander seat, thereby avoiding the phenomenon of anal fissure occurrence, reducing the pain of the patient. The present invention can be widely used in surgical operations.

Description

anal dilator

technical field

The invention relates to an anal dilator for surgical operations, belonging to the technical field of medical instruments.

Background technique

When performing inspection, diagnosis or surgical treatment in anorectal surgery, it is necessary to stretch the anus first, and then put in other surgical instruments for inspection or treatment. The currently commonly used surgical instrument for stretching the anus is the anal expander seat, which includes a cylindrical body and a shoulder for applying force at the tail of the body. The rigid cylindrical body can stretch the anus, and the hollow space in the cylinder Part of it constitutes the channel for other surgical instruments to enter the patient's body. When in use, slowly insert the body of the anal expander seat into the anus from its front end until the anal canal. Although it is generally matched with the inner catheter of the anal expander to enter the anus, the distal end of the anal expander is still not easy and fast enough. into the anus. Existing common way is that doctor can insert finger into patient's anus first, and then both hands forcefully anus is outwardly propped up, and then anal dilator seat and inner catheter are inserted into anus. When the doctor pre-expands the anus with his fingers, he often damages the anal sphincter of the patient due to excessive force in an instant, causing anal fissure and causing the patient to suffer undue injury.

Contents of the invention

In view of the above-mentioned defects in the prior art, the object of the present invention is to propose an anal dilator capable of avoiding anal fissure.

The purpose of the present invention will be achieved through the following technical solutions:

An anal dilator, used for the expansion of the anus and anal canal, comprising a cylindrical body, a tapered guide part and an outwardly expanded wide side, the guide part is connected to the distal end of the body, and the wide The edge is connected to the proximal end of the body, and the anal dilator also includes a cylindrical air bag matched with the body, the air bag is sleeved on the outer surface of the body, and the air bag passes through a The conduit is connected to a fluid source.

Further, the length of the airbag is equal to the length of the main body.

Furthermore, the inner diameter of the airbag is 33-35 mm.

Furthermore, the inner diameter of the airbag is 34 mm.

Furthermore, the anal dilator further includes at least one support member, and the support member is arranged between the main body and the air bag.

Furthermore, the anal dilator includes four support members, the support members are arc-shaped sheet structures, and the support members are symmetrically arranged between the body and the air bag.

Furthermore, the fluid source is a gas source or a liquid source.

Furthermore, the air source is a manually inflatable ball.

Furthermore, the conduit is provided with a regulating valve for controlling the flow of the fluid.

Compared with the prior art, the beneficial effects of the present invention are mainly reflected in that the patient's anus and anal canal can be enlarged gradually and controllably, and the anal sphincter can be adapted to be expanded before inserting the anal expander seat. The expansion range of the organ seat can avoid the occurrence of anal fissure and reduce the pain of the patient.

Description of drawings

Fig. 1 is a perspective view of a kind of anal expander of the present invention;

Fig. 2 is a perspective view of part of the structure in Fig. 1, omitting the inflation device;

Fig. 3 is the front view of structure shown in Fig. 2;

Figure 4 is a top view of the structure shown in Figure 2;

Fig. 5 is a sectional view along A-A among Fig. 4;

FIG. 6 is a structural schematic diagram of a cross-section of the structure shown in FIG. 3 .

In the picture:

1 Anal dilator 11 Body 12 Guide part

13 Broadside 2 Airbags 21 Catheter

22 Manual inflation ball 23 Sealing joint 24 Regulating valve

3 supports

Detailed ways

As shown in Figures 1-5, an anal dilator 1 of the present invention includes a main body 11, a tapered guide part 12 and an outwardly expanded wide side 13, the guide part 12 is connected to the distal end of the main body 11, and the wide side 13 is connected to the At the proximal end of the main body 11; the anal dilator also includes a cylindrical air bag 2 matched with the main body 11, the air bag 2 is sleeved on the outer surface of the main body 11, and the length of the air bag 2 is equal to the length of the main body 11; One end of the conduit 21 is communicated with the airbag 2 through a sealing joint 23, and the other end of the conduit 21 is communicated with a manual inflatable ball 22, so that the airbag 2 and the manual inflatable ball 22 are communicated; between the main body 11 and the airbag 2, four A support member 3 with a circular arc-shaped sheet structure, so that when the air bag 2 is inserted into the anus, the proximal end of the support member abuts against the lower surface of the edge, so that the air bag will not wrinkle or cannot enter the anus , Of course, a greater number of support members 3 can also be provided; a regulating valve 24 for controlling the gas flow is provided on the conduit 21 . The proximal end is the end closer to the medical personnel during operation; the distal end is the end farther away from the medical personnel during operation.

The inner diameter of the air bag 2 is equal to 34 millimeters, which is equivalent to that of a common anal dilator; certainly, the inner diameter of the air bag 2 can also be designed to be 33 to 35 millimeters. Of course, it is also possible to feed liquid into the air bag 2 to expand it, so as to expand the anus. At this time, the manually inflated ball 22 can be replaced by a liquid pump.

Briefly introduce the use process of the present invention below: first, the body 11 of the uninflated anal expander is inserted in the patient's anus, because its inner diameter has been greatly smaller than the anal expander and inner catheter inner diameter of the prior art, so it is easy to Enter the anus; then, use the manual inflatable ball 22 to start to inflate the air bag, the air bag 2 expands gradually, and stops inflating after reaching the maximum diameter. Finally, exit the anal dilator of the present invention, so that the airbag and its supporting parts stay in the anus. If the airbag will follow the body and withdraw outward, press the proximal end of the supporting part with one hand to keep its position fixed. Use the other hand to operate the wide side of the main body to take out the main body, while the air bag will stay in the anus to provide a passage or operating space for the entry of other surgical instruments. After the operation is completed, release the gas in the air bag and take out the air bag.

The present invention still has multiple implementation modes, such as changing the shape of the air bag from a cylindrical shape to an inverted cone in order to make the air bag stay in the anus better, and all technical solutions formed by equivalent transformation or equivalent transformation fall into the same category. Within the protection scope of the present invention.

Claims (8)

1. anus-expanding unit; Be used for the expansion of anus and anal canal, comprise the guide part of columnar body, taper and the broadside that extends out, said guide part is connected in the far-end of said body; Said broadside is connected in the near-end of said body; It is characterized in that: also comprise the air bag of the tubular that matches with said body, said Air sac cover is connected to the outer surface of said body, and said air bag is communicated in a fluid source through a conduit; Said anus-expanding unit also comprises at least one support member, and said support member is fixedly connected with air bag, and is arranged between said body and the air bag.

2. a kind of anus-expanding unit according to claim 1 is characterized in that: the length of said air bag equals the length of said body.

3. a kind of anus-expanding unit according to claim 1 is characterized in that: the internal diameter of said air bag is 33～35 millimeters.

4. a kind of anus-expanding unit according to claim 3 is characterized in that: the internal diameter of said air bag is 34 millimeters.

5. a kind of anus-expanding unit according to claim 1 is characterized in that: said anus-expanding unit comprises four said support members, and said support member is the laminated structure of circular arc, and said support member is arranged between said body and the air bag symmetrically.

6. a kind of anus-expanding unit according to claim 1 is characterized in that: said fluid source is source of the gas or fluid supply.

7. a kind of anus-expanding unit according to claim 6 is characterized in that: said source of the gas is manual inflatable ball.

8. according to any anus-expanding unit described in the claim 1-7, it is characterized in that: said conduit be provided with one be used to control fluidic flow control valve.

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