JPH0715526Y2 - Tourniquet - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hemostatic device for stopping blood outflow after withdrawing a catheter inserted into a blood vessel such as angiography.

2. Description of the Related Art Conventional Techniques and Their Problems Usually, angiography and endovascular treatment using a catheter are performed via the femoral artery and the upper arm artery. After performing such angiography or vascular treatment, if you remove the catheter,
A large amount of blood flows out from the blood vessel opening after the blood is drawn out.
In order to prevent the outflow of blood and safely close the blood vessel opening, the method conventionally used by a technician is to press the blood vessel opening while pressing it with a finger for a long time, or Using a hemostatic clamp 51 as shown in the figure, a relatively hard flat rubber pad 52 is pressed onto the blood vessel opening using the pressure of a tightening screw 53 or the like.

The pressure on the affected area for the purpose of hemostasis after withdrawing the catheter as described above must be appropriately performed according to the experience of the operator in consideration of the size of the blood vessel opening, individual differences among patients, and the like. Therefore, the technician must spend a considerable amount of time and concentration to stop the bleeding, which also contributes to the reduced efficiency of the procedure.

By the way, the method of pressing the rubber pad 52 against the opening cannot completely follow the unevenness of the affected area, which often causes troubles such as blood leakage and reopening of the adhesion. Also, since the compressive force tends to concentrate on the convex parts of the skin, extra force is added to the bones,
There is also the problem of causing pain to the patient. Furthermore, the skill of the technician is also required to optimally apply the compression force to each patient. As a result, since it depends only on the experience and feeling of the operator, it can be used only by a specific person.

Therefore, the present invention solves the above-mentioned conventional problems, can follow the unevenness of the affected area, can eliminate the blood leakage trouble, and can easily change the compressive force without requiring experience. It is an object of the present invention to provide a hemostatic device capable of giving an optimal compression force to each patient.

Means for Solving the Problems In order to achieve the above object, the hemostatic device of the present invention has a fluid enclosed therein as shown in FIG.
And the expandable and contractable closed hollow body 22, a pressure gauge 24 for measuring the internal pressure of the hollow body, and when the hollow body is installed in the blood vessel opening, the hollow body is placed on the outer surface of the hollow body opposite to the blood vessel opening. A pressing member 25 arranged in contact with each other, and a pressure adjusting member 27, 2 for pressing the pressing member against the hollow body to adjust the internal pressure of the hollow body.
It has 9,30,31.

As the pressure adjusting members 27, 29, 30, 31 in this case, there are fixed screw members 30, 31, and a female screw 29 to be screwed with the screw member, and the pressing member 25 and the screw are rotated around the axial line of the female screw. It is preferably composed of a rotating member 27 which is movably supported.

In operation and use, first, the hollow body 22 is installed in the blood vessel opening 36 of the patient directly or via the gauze 35, and the pressing member 25 is brought into contact with the outer surface of the hollow body 22 from the opposite side. This completes the setting. Next, according to the patient's condition, etc., the hollow body 22 is pressed by the pressing member 25 by the pressure adjusting members 27, 29, 30, 31 while watching the pressure gauge 24, and when the internal pressure of the hollow body 22 reaches a predetermined value, Stop pressing. As a result, an optimal compression force for the patient is applied to the blood vessel opening.

Embodiment FIG. 1 shows an embodiment of the present invention. In the figure, 21 is a hemostatic device, which comprises a closed hollow body 22 made of rubber or relatively flexible and highly stretchable plastic. Hollow body
A predetermined amount of fluid is sealed inside 22. Further, a short pipe 23 having a pressure gauge 24 is connected to the hollow body 22.

Reference numeral 25 is a pressing member that is arranged in contact with the outer surface of the hollow body 22,
A circular recess 26 is formed on the upper surface. Recess of pressing member 25
A lower large-diameter portion 27a of the rotating member 27 is rotatably accommodated and arranged in the rotary member 26 via a thrust bearing 28. Rotating member 27
A female screw 29 is formed in the central portion of the lower large diameter portion 27a to the upper small diameter portion 27b.
The rotating member 27 and the pressing member 25 are attached to the arm 30 by being screwed into. Then,
The arm 30 and the male screw 31 constitute a fixed screw member, and the rotating screw 27 having the fixed screw members 30, 31 and the female screw 29 constitutes a pressure adjusting member. An operation handle 32 for rotating the rotating member 27 is fixed to the outer peripheral surface of the upper small diameter portion 27b of the rotating member 27.

In the above, when the procedure is completed and the catheter is withdrawn, first the hollow body 2 is installed in the blood vessel opening 36 via the gauze 35, and the handle 32 is operated to rotate the rotating member 27, Turn the rotating member 27 to the male thread of the arm 30.
Move up and down relative to the 31st copy. That is, the pressure gauge
While looking at 24, the rotating member 27 is rotated to move it downward to move the hollow body 22.
Is pressed by the pressing member 25, and the pressing force is applied to the blood vessel opening 36.
And gradually press the opening. When the internal pressure in the hollow body 22 reaches a predetermined pressure, the rotation of the rotation member 27 is stopped.
When the blood vessel opening 36 is completely closed, the rotating member 27 is rotated in the opposite direction to move upward, and the pressing of the hollow body 22 by the pressing member 25 is released. After the release, the hollow body 22 is removed from between the affected area and the pressing member 25.

In this embodiment, the arm 30 having the male screw 31 and the rotating member 27 having the female screw 29 are merely examples of the pressure adjusting member, and other designs such as pressing the pressing member 25 using a spring are available. It goes without saying that it is good. The same applies to the arm 30 as the fixing screw member and the male screw 31, which is only a preferable example.

Effect of the Invention In the hemostatic device of the present invention, the pressing member is pressed against the hollow body by the pressure adjusting member, and thus the blood vessel opening can be stopped. Moreover, the workability is good because no work is required to supply or discharge the fluid to or from the hollow body. In addition, a pressure gauge is provided, and there is an excellent effect that the internal pressure of the hollow body can be quantitatively numerically controlled.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional example. 21 …… Hemostasis, 22 …… Hollow body 23 …… Short tube, 24 …… Pressure gauge 25 …… Pressing member, 26 …… Recessed member 27 …… Rotating member, 28 …… Thrust ball bearing 29 …… Female thread , 30 …… arm 31 …… male screw, 32 …… handle 35 …… gauze, 36 …… vascular opening

Claims (2)

[Scope of utility model registration request] 1. A sealed hollow body (22) in which a fluid is enclosed, which is relatively flexible and expandable, a pressure gauge (24) for measuring the internal pressure of the hollow body, and the hollow body is a blood vessel opening. And a pressing member (25) arranged so as to abut the outer surface of the hollow body on the side opposite to the blood vessel opening when adjusting the internal pressure of the hollow body by pressing the pressing member against the hollow body. A hemostatic device comprising a pressure adjusting member (27, 29, 30, 31) that operates. 2. The hemostatic device according to claim 1, wherein the pressure adjusting member (27,29,30,31) has a fixing screw member (30,31) and a female screw (29) screwed with the screw member. And a hemostatic device comprising a pressing member (25) and a rotating member (27) that is rotatably supported around the axis of the female screw.