WO2015002572A1

WO2015002572A1 - Device for introducing infusion solutions and having anti-air valve

Info

Publication number: WO2015002572A1
Application number: PCT/RU2014/000465
Authority: WO
Inventors: Виктор Гордеевич КОМОГОРОВ
Original assignee: Komogorov Viktor Gordeevich
Priority date: 2013-07-02
Filing date: 2014-06-27
Publication date: 2015-01-08

Abstract

A device for introducing infusion solutions and having an anti-air valve is intended for use in medicine, and in the intravenous administration of liquid medicinal agents to patients in any branch of medicine where intravenous infusions are carried out. The technical result of the utility model is the use of a ball-float to improve the seal of the bottom of a funnel. Said goal is achieved in that the device for introducing infusion solutions, including a needle, a dropper, a solution supply tube and a solution removal tube, is provided with a valve which consists of a conically tapered funnel and a ball-float which is freely-positioned above the funnel; the valve can be installed in the dropper, characterized in that the valve and the dropper are located in a single container but in different chambers, and the bottom of the funnel is carried out with a spherical recess, the diameter of which is comparable to the diameter of the float.

Description

DEVICE FOR INFusion INFUSION SOLUTIONS with

ANTI-AIR VALVE

DESCRIPTION

The device for infusion of infusion solutions with an anti-air valve is designed for use in medicine, with intravenous administration of liquid

medicines to patients in any branches of medicine where intravenous infusions are carried out.

There are three devices for infusion of infusion solutions of different

manufacturers widely used in medical institutions of Russia. A polymer device for blood transfusion, blood substitutes and infusion solutions with single-use needles PR-21-01- "Synthesis", GOST-25047-87, manufactured in Russia, Kurgan, OJSC "Synthesis" consists of:

1) droppers with a strainer inside the bottom.

2) a plastic tube with a needle at the end to pierce the stopper of the vial with the solution and conduct the solution from the bottle to the dropper

3) a plastic tube with a needle at the end, for conducting a solution from a dropper into a patient’s vein and a plastic clamp to control the rate of infusion and stop the infusion completely.

A device for the injection of blood substitutes and infusion solutions, single use PR-21-06-TZMOI, TU 9444-046-12517820-96 produced in Russia. Tyumen, JSC "Tyumen Plant of Medical Equipment and

tools ”, consisting of:

1) a plastic cylindrical dropper with a strainer at the bottom and

a hollow metal needle in the form of a spike attached to the top of the dropper through an adapter to pierce the stopper of the solution vial.

2) a plastic tube with an injection needle at the end to hold the solution from the dropper into the patient's vein and clamp. A device for infusion of infusion solutions "KDM", made in Germany, consisting of:

1) a cylindrical plastic dropper with a strainer at the bottom and a plastic spike with a hole in the center for piercing the stopper of the solution vial and introducing the solution into the dropper.

2) the part that diverts the solution from the dropper, consisting of a plastic tube with a needle at the end and a clamp.

The structural disadvantage of the above analogues is that after the solution is finished in the bottle, following the residual solution due to the vacuum created, air enters the dropper of the device, then air, when the solution ends in the dropper, after the solution remains, enters the outlet part of the device and can continue to fall into the patient’s vein, causing a formidable complication - an air embolism, to prevent which it is necessary to squeeze the clamp on the outlet part of the device when the solution in the vial is completed. The closest analogues of the claimed solution is the RF patent for utility model N268897. It describes a device for infusion of infusion solutions, including a needle, dropper, a solution inlet tube and a solution outlet pipe, characterized in that the device is equipped with a valve consisting of a cone-tapering funnel and a float ball freely located above the funnel, with the valve installed or inside droppers, or in the inlet solution to the dropper

a plastic tube, in a separate container between the dropper and needle, or in

the drainage solution from a dropper to a plastic tube, in a separate container. Also described is a device for infusion of infusion solutions, including a needle in the form of a spike and a dropper, characterized in that the device is equipped with a valve consisting of a cone-tapering funnel and a float ball located above the funnel, the valve being installed inside a plastic spike adjacent directly to the upper part droppers. Also described is a device for infusion of infusion solutions, including a needle and a dropper, characterized in that the device is equipped with a valve consisting of a cone-tapering funnel and freely located above the funnel ball float, while the valve is installed inside the adapter, between a metal needle and a dropper.

The specified prototype eliminates the need to monitor the level of liquid in the bottle, in order to timely shut off the clamp of the solution, which will increase

rationality is the use of working time and therefore

staff productivity; eliminates the possibility of air entering the conduction system of the dropper, which minimizes the influence of subjective factors such as insufficient experience, carelessness or negligence on the part of medical personnel and, as a result, a reduction in nosocomial complications. The disadvantage of this solution is the lack of reliability of the ball-float to serve as a sealed valve when plugging a cone-shaped funnel. This happens because when the cone-shaped funnel is lowered to the bottom, the ball will no longer be a float and may occupy a position in which air enters the dropper hole at the bottom.

The purpose of the solution is to eliminate the disadvantage of the prototype.

The technical result is to increase the sealing ball-float of the bottom of the funnel.

This goal is achieved due to the fact that the device for infusion of infusion solutions, including a needle, dropper, inlet tube and outlet pipe, is equipped with a valve consisting of a conically tapering funnel and a float ball freely located above the funnel, while the valve is installed inside the dropper characterized in that the valve and dropper are placed in a single container, but in different chambers, and the bottom of the funnel is made with a spherical recess, comparable in diameter with the diameter of the float.

Preferably, the material from which the float is made is made of such a density that it is "submerged" at the surface of the infusion solution. The device (see Fig. 1) consists of a polymer needle (1) for puncturing the stoppers of containers with infused liquid, a 2-chamber dropper (2) and an injection unit (10), connected in series by a tube (8), with an infusion solution supply regulator (9).

The dropper (2) has a two-chamber structure. In the upper chamber (3) there is a float

(four) . The bottom of the chamber is tapered narrowed, at the exit there is a spherical recess (5) with a drop-forming hole. The spherical recess is comparable to the diameter of the float. In the lower chamber (6) is a filter (7).

Upper chamber (3), with a float (4) located in it and a spherical recess

(5), acts as a valve that stops the infusion of solution into the connecting tube from the lower chamber (6) when the solution in the vial ends.

During the introduction of the liquid, the float is located on the surface of the liquid in the upper chamber (3), the spherical recess is free and the liquid from the upper chamber (3) enters the lower (6) (see Figure 2).

When the injected solution ends in the vial, the float is lowered into a spherical recess. Large contact area ensures reliable

sealing the system (see Fig.Z). At the same time, the infusion solution in the lower chamber (6) remains at the same level, which allows continuing the intravenous infusion without additional manipulations to connect the system to the next vial.

It is desirable that the material from which the float is made should have a density such that it is "submerged" in the infusion solution. This increases the efficiency of sealing, because it provides not only a large area of contact between the float and the recess, but also the "remainder" of the solution in the tank. Thus, an increase in sealing by a ball-float of the bottom of the funnel is provided.

Advantages of the system for intravenous drip of infusion solutions of this design:

- there is no need to monitor the level of liquid in the vial, in order to

timely closure of the clamp of the solution supply, which will increase rationality the use of working time and, therefore, staff productivity;

- allows for massive infusion therapy to replace bottles with infusion solutions without additional manipulations (disconnecting the system from

injection needle and “refill” the system).

- eliminates the possibility of air entering the conductive dropper system, which minimizes the influence of subjective factors such as insufficient experience, carelessness or negligence on the part of medical personnel and, as a result, a reduction in nosocomial complications.

Claims

Formula

1. A device for infusion of infusion solutions, including a needle, dropper, a solution supply pipe and a solution discharge pipe, is equipped with a valve consisting of a cone-tapering funnel and a float ball freely above the funnel, with the valve installed inside the dropper, characterized in that the valve and a dropper are placed in a single container, but in different chambers, and the bottom of the funnel is made with a spherical recess, comparable in diameter to the diameter of the float.

2. The device according to claim 1, characterized in that the material from which the float is made is made of such a density that it is "submerged" at the surface of the infusion solution

b