JP2003144442A - Rubber ring for hemorrhoid ligation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubber ring for hemorrhoid ligation prevented from falling off the hemorrhoid before the sphacelation and natural fall of the hemorrhoid upon the lapse of days after ligating the hemorrhoid. SOLUTION: A plurality of locking protrusions 3 are disposed on the inner peripheral surface surrounding at least a through hole 2 of this rubber ring 1. When ligating the hemorrhoid with the rubber ring 1, the locking protrusions 3 are locked biting into the outer peripheral surface of the piles.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a rubber ring for ligating hemorrhoids mainly for internal hemorrhoids.

[0002]

2. Description of the Related Art Conventionally, a hemorrhoid ligator main body, a guide weight, and a hemorrhoid nucleus grasping forceps have been used, and particularly, those having a particularly high tension force have a through hole diameter of 1-1. 3m
An annular rubber ring having a diameter of m, an outer diameter of about 5 mm and a height of 1.5 to 2.3 mm was ligated to the base of the hemorrhoid, and the ligated hemorrhoid changed its color in the course of several days to about a week. , Gradually, necrosis progresses, and it naturally falls off and achieves its purpose. An enlarged perspective view of an example of the above rubber ring is shown in FIG. In the figure, the center through-hole r has a diameter of 1 mm, an outer diameter of 5 mm, and an annular rubber ring R having a height of 2 mm.

[0003]

However, since the surface of hemorrhoids is slippery on mucous membranes, the conventional rubber ring ligates the hemorrhoids, and the ligation state is maintained for several days to about 1 hour. The rubber ring may fall out of the hemorrhoid before the hemorrhoid falls out after a lapse of weeks, and the purpose may not be achieved. In particular, if the hemorrhoid with a less swollen surface or the surface is hardened due to inflammation, etc., it is easier to come off, so the purpose of shedding the hemorrhoid by ligation is not achieved, and a new rubber ring is used to ligate again. Alternatively, as another ligation means, the ligation work such as tying with a thread must be performed again, which causes trouble and inefficiency. Therefore, it is desired to develop a rubber ring that can achieve the purpose of removing hemorrhoids with high efficiency without easily releasing the rubber ring ligated with hemorrhoids.

[0004]

Means for Solving the Problems The present invention solves the above-mentioned problems of the prior art, enables stronger ligation, prevents detachment from hemorrhoids after ligation, and achieves the object with high efficiency. A rubber ring for ligating hemorrhoids to be obtained, which is characterized in that, in a rubber ring having a through hole in the center, a plurality of locking projections are arranged at least on the inner peripheral surface thereof. Furthermore, the present invention provides a hemorrhoid ligation rubber ring capable of stably and satisfactorily ligating hemorrhoids, and is characterized in that a plurality of locking projections are also provided on the outer peripheral surface.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a rubber ring according to an embodiment of the present invention. More specifically, FIG.
FIG. 1B is a double enlarged plan view, and FIG. 1B is a vertical sectional view taken along the line AA of FIG. Regarding the shape and actual size of the rubber ring 1, the through hole 2 formed at the center of the outer diameter of 5.5 mm and the height of 2 mm is formed into a cross-shaped through hole 2 having a hole diameter of 1.5 mm. In between, four ribs projecting toward the center of the through hole 2 of rib-shaped locking projections 3 each having an isosceles triangle shape of 0.5 mm on one side and extending over the entire length in the height direction,
A space between the apexes of the rib-shaped locking protrusions 3, 3, ... That face each other, that is, a circular rubber ring in which the diameter of the center hole of the cross-shaped intersection of the cross-shaped through hole 2 is 0.5 mm. The ligation force is required to have a large pulling force of about 19 Newtons when the ligation force is pulled by a digital force gauge manufactured by Imada Co., Ltd. and the inner diameter is expanded to 15 mm. That is, it has a large ligation force.

2A, 2B, and 2C of FIG. 2, a conventional ligature body A, a synthetic resin rubber ring guide weight (cone) B and a hemorrhoidal forceps C having a smooth surface. And is ligated to the base of the hemorrhoid by means known in the art. The main body A of the ligator has a guide rod a2 which is inserted through the operating rod a1 and is movable forward and backward, and when the lever a3 is inoperative, an inner cylinder a4 attached to the tip of the operating rod a1 by welding or the like is a guide rod. It is located so as to project further forward than the outer cylinder a5 attached to the tip of a2, and when the lever a3 is pulled, the operating rod a
1 moves backward, and the inner cylinder a4 is configured to be drawn into the outer cylinder a5. The ligation means is performed as follows. That is, first, the base b1 of the rubber ring guide weight B
As shown in FIG. 3, the operating rod a of the hemorrhoid ligator main body A is
After the rubber ring 1 of the present invention is fitted into the fitting inner cylinder a4 of the tip of No. 1, the rubber ring 1 of the present invention is inserted into the conical tip of the rubber ring guide weight B, and then the arrow mark is shown. As described above, the rubber ring 1 is guided and fitted to the outer peripheral surface of the inner cylinder a4 at the tip of the operating rod a1, and the preparation for the ligation work is completed. Next, as shown in FIG. 4, hemorrhoidal forceps C
Is inserted from the inside of the inner cylinder a4 of the ligator main body A,
The scissors portion c1 of the forceps is inserted from the anus K, and the distal end of the hemorrhoid G is sandwiched and pulled up in the direction of the hand, while the main body A of the ligator is advanced, and the hemorrhoid G is placed inside the outer cylinder a5 as shown in FIG. Then, the base of the hemorrhoid G is pulled up to a position corresponding to the rubber ring 1 fitted in the inner cylinder a4, and in this state, the lever a3 of the ligature body A is pulled. In that case, when the inner cylinder a4 is retracted into the outer cylinder a5, the inner cylinder a4 is retracted.
The rubber ring 1 attached to the outer peripheral surface of 4 is automatically fitted to the base of the hemorrhoid G with a large contracting force contrary to its large tensile strength, that is, a compressive force as shown in FIG. Complete.

The state of ligation of the hemorrhoids G by the rubber ring 1 of the present invention, in addition to the above large ligation force, is shown in FIG.
A ligation can be obtained in a state where the ... bites the outer peripheral surface of the hemorrhoid G.
Therefore, after the hemorrhage, the rubber ring 1 is prevented from falling off from the hemorrhoid G, and the hemorrhoid above the ligation portion of the rubber ring 1 is necrotic after a required number of days, and a strong ligation state until it falls can be secured. As a result of many clinical trials, in the conventional rubber ring, the dropout rate was about 5%, but in the above-mentioned book, the light rubber ring 1 does not reach 1%, and the effect of preventing the rubber ring from coming off is significantly improved. It was confirmed.

FIG. 7 shows a rubber ring 1'of a modified example of the present invention, which is parallel to the inner peripheral wall surface surrounding the through hole 2 of the rubber ring 1'in three stages at intervals in the height direction. The annular locking protrusions 3 ', 3', 3'having a rectangular cross section are disposed in the rubber ring 1 of the above-described embodiment to prevent the hemorrhoid from being ligated. The same effect as can be obtained.

FIG. 8 shows a rubber ring 1 ″ of a modified example of the present invention. More specifically, FIG. 8 (a) is a perspective view thereof, and FIG. 8 (b) is B of FIG. 8 (a). -Shows a sectional view taken along the line B. This rubber ring 1 "has a cross-shaped through hole and is provided with locking protrusions 3, 3 and 3 having a triangular cross section over the entire height and in addition to its outer periphery. Triangular locking protrusions 3 ″ projecting outward are arranged in three stages on the surface at regular intervals in the height direction at four positions on the front, rear, left and right. The rubber ring 1 may be twisted in the process of pushing it forward after being inserted into the guide weight and fitting it on the outer peripheral surface of the inner cylinder a4 of the ligature device main body A.
When fitted in 4, the locking projections provided in the through hole 2 may not all face inward. Considering such a case, the rubber ring 1 ″ shown in FIG.
Has a locking projection 3 ″ on its inner peripheral surface and also has a locking projection 3 ″ on its outer peripheral surface.
According to this, even if the above-mentioned twisting occurs, a state in which the plurality of locking projections 3 ″ are always oriented toward the inside thereof can be obtained, so that stable and good ligation can be secured.

[0010]

As described above, according to the rubber ring of the present invention, since the plurality of locking projections are arranged on the inner peripheral surface surrounding the through hole at the center thereof, the above disadvantages of the conventional rubber ring are eliminated. As a result, a strong ligation of hemorrhoids can be obtained, the effect of preventing separation from the ligated state is significantly improved, and the ligation work can be performed with high efficiency. Furthermore, by disposing a plurality of locking projections on the outer peripheral surface, even if the rubber ring is twisted,
Ligation of hemorrhoids with a plurality of locking projections can be ensured.

[Brief description of drawings]

FIG. 1 shows a rubber ring according to an embodiment of the present invention,
1 (a) is an enlarged plan view thereof, and FIG. 1 (b) is shown in FIG.
It is an AA line cutting cross section of (a).

FIG. 2 shows constituent members of the hemorrhoidal ligator, and FIG.
Fig. 2 is a front view of the hemorrhoid ligation device main body, Fig. 2 (b) is a front view of a rubber ring guide weight, and Fig. 2 (c) is a plan view of a hemorrhoid forceps.

FIG. 3 is a partially cutaway side view for explaining a ligation preparation work for attaching a rubber ring to the outer peripheral surface of the inner cylinder of the ligator main body via a rubber ring guide weight.

FIG. 4 is a diagram illustrating a state in which hemorrhoids are clamped by forceps.

FIG. 5 is a view showing a state in which hemorrhoids are pulled up and accommodated in the main body of the ligator.

FIG. 6 is a cross-sectional view showing a ligated state of hemorrhoids with a rubber ring of the present invention.

FIG. 7 is a central longitudinal sectional view of a rubber ring according to a modified example of the present invention.

FIG. 8 shows a rubber ring of a further modified example of the present invention,
8 (a) is a perspective view thereof, and FIG. 8 (b) is FIG. 8 (a).
FIG. 7 is a sectional view taken along line BB of FIG.

FIG. 9 is a perspective view of a conventional rubber ring.

[Explanation of symbols]

1,1 ′, 1 ″ Rubber ring of the present invention 2 through holes 3,3 ', 3 "Locking protrusion

Claims (2)

[Claims] 1. A rubber ring having a through hole in the center thereof, wherein a plurality of locking projections are provided on at least the inner peripheral surface of the rubber ring for hemorrhoid ligation. 2. A rubber ring for hemorrhoid ligation, characterized in that a plurality of locking projections are also provided on the outer peripheral surface.