JPH01317451A - Blood leak preventing device for blood clot removing operation - Google Patents

Abstract

PURPOSE:To execute the removal of a blood clot without fail, to speedily execute the removal, to completely prevent blood from leaking and further to safely and securely execute the insertion of medicine into a blood vessel without leaking by including a check valve, which is mounted in a main tube with being adjacent to a branching part, and a soft tube, whose central part is freely compressed, to be mounted in a branched sub tube. CONSTITUTION:A branching tube 10 has a check valve 22 in the opposite side of a shunt tube, which is in the vicinity of the branching part of a main tube 12 to be directly connected with the shunt tube, and in this branching part, a sub tube 14 to have a check valve 20, which is opened by pressing-in a lure-shaped chip, and another sub tube 16, to which the soft tube to be freely expanded is engaged as necessary, are obtained. The sub tube 14 having the check valve 20, which is opened by pressing-in the chip, has the aperture part of satisfactory closing is obtained to be engaged to the lure, etc., of a syringe and water density. Further, a clamp is fit to a soft tube 18, which is freely expanded, to receive the removed blood clot. Thus, while the blood is prevented from leaking, accumulated exhausting objects such as the blood clots can be successively exhausted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a blood leak prevention device for thrombectomy. More specifically, the present invention relates to an improved blood leak prevention device for use during thrombectomy.

(Prior Art 1: Problems to be Solved by the Invention) When an external shunt is used for dialysis, a thrombus occurs near the joint between the external shunt tube and the blood vessel, which causes shunt failure. in this case.

A commonly used method is to insert a thrombus removal catheter equipped with an inflatable balloon and inflate the balloon to physically pull and remove the thrombus in the blood vessel.

This is especially true when removing a blood clot from the artery, but when the inflatable balloon is closed and the catheter is inserted into the shunt tube, blood leaks between the balloons and squirts out due to blood pressure. and often resulted in blood loss.

The present invention has been made to solve these drawbacks, and aims to ensure and speed up thrombus removal and prevent blood leakage when removing thrombus generated at the joint between an external shunt tube and a blood vessel. It is an object of the present invention to provide a device that is not only perfect but also allows the insertion of a drug into a blood vessel to be carried out safely and reliably without leakage.

(Means for Solving the Problems) An object of the present invention is to prevent blood from flowing into the entrance of an external shunt tube for blood vessels when a catheter for thrombectomy is inserted and when a medicinal solution is inserted into a blood vessel. The object of the present invention is to provide a simple and reliable device that can prevent leakage.

According to the present invention, there is provided a part to which an inflatable tube for storing a thrombus to be removed is joined, a part provided with a check valve for passing a catheter having an inflatable balloon for removing the thrombus, and a luer. A branch pipe including a portion having a check valve that is opened by press-fitting a shaped tip is engaged with the inlet of the external shunt tube.

The configuration and functions of the blood leak prevention device for thrombectomy according to the present invention will be explained in detail based on the accompanying drawings.

A branch tube (10) made of transparent plastic according to the present invention at the connection part with the outer shunt tube engaged with the blood vessel.
be fitted. This branch pipe (lO) has a check valve (22) on the opposite side of the shunt tube near the branch part of the main pipe (12) that communicates directly with the shunt tube, and this branch part has a Luer-shaped tip. It has an auxiliary pipe (14) having a check valve (20) that is opened by press-fitting the auxiliary pipe, and another auxiliary pipe (16) that is engaged with a soft tube that can be expanded as needed. .

The check valve (22) provided in the main pipe (12) has a first
It may be installed inside the main pipe as shown in the figure, or it may be installed near the entrance of the main pipe as shown in Fig. 2, and it also has an outlet for thrombus removal. You can.

In addition, check valves (2
The auxiliary tube (14) having a diameter of 0) must have an opening with excellent sealing properties to engage the luer of a syringe or the like in a watertight manner.

Furthermore, a clamp is attached to the expandable soft tube (18) that stores the removed thrombus, thereby preventing blood from leaking and allowing the accumulated thrombus and other waste to be discharged at any time. .

This soft tube (18) can be attached to the auxiliary pipe (1B) of the branch pipe (lO) as shown in Fig. 1, or it can be attached to the check valve attached to the main pipe (12) as shown in Fig. 2. may be installed at the outlet of the unit.

(Effect of the invention) By using the device according to the invention.

External shunts, which were difficult or impossible with conventional methods
Not only can blood clots that occur at the tube joints be removed and stored very smoothly.

Even when the internal pressure is high, such as in an artery, there is no need to worry about blood leakage when inserting a catheter, and even when a new drug solution is injected into the blood vessel, the surgical operation can be performed without worrying about leakage of the drug solution or blood. .

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a blood leak prevention device for thrombectomy according to the present invention. FIG. 2 is a sectional view of another blood leak prevention device for thrombectomy according to the present invention. In the accompanying drawings. 10...Branch pipe for blood leakage prevention for thrombectomy. 12...Main pipe, 14.1 [3...Sub pipe. 18... Soft tube, 20.22... Check valve.

Claims (4)

[Claims] (1) A blood leakage prevention device for thrombectomy having a branch, including (a) a check valve installed in the main pipe adjacent to the branch, and (b) a central part installed in the branched secondary pipe. A blood leakage prevention device for thrombectomy, comprising: a soft tube whose portion is freely compressible; (2) The prevention device according to claim 1, wherein the check valve includes an elastic membrane having a linear cut or a circular hole, singly or in combination. Characteristic blood leakage prevention device for thrombectomy. (3) The prevention device according to claim 1 or 2, for use in thrombus removal, characterized in that the inflatable central portions of the soft tubes overlap in a sheet-like manner. Blood leak prevention device. (4) The prevention device according to any one of claims 1 to 3, further comprising a branch provided at a position facing the branch part, and a luer-shaped tip press-fitted into the branch. A blood leakage prevention device for thrombus removal surgery, characterized in that it is equipped with a check valve that opens when the valve is opened.