RU4909U1 - DEVICE FOR MULTIPLE INFUSION THERAPY - Google Patents

Abstract

A device for multiple infusion therapy, including a tubing, a puncture needle, a mandrin and a catheter, characterized in that the catheter has the form of a metal tube, the wall of the tube has additional openings for fluid to enter the body, and the end of the tube is rounded and contains an opening smaller than the inner diameter.

Description

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DEVICE FOR RAPID INFUSION THERAPY.

The proposed utility model relates to veterinary medicine, in particular to devices for drip and jet intravascular infusion of fluids into the body of an animal that is in conditions of limited mobility and can find application in medicine.

As an analogue, a device is known for delayed injection of fluid into the main vessels (I) p. X20. It consists of a piping, an infusion needle with a protective case for puncture of the vessel and a flexible disposable catheter.

The action of this device is as follows. As soon as the end of the needle enters the lumen of the vein and blood appears in the needle pavilion, a flexible catheter is inserted into the vein through the inner channel of the needle. Then the needle from the vein is removed and placed in a safety case to avoid damage to the flexible catheter and injuring the skin of the animal with the needle. Thus, during infusion, the needle remains on the catheter in the safety case. The disadvantage of this device is the likelihood of damage to the flexible catheter by cutting the needle. Catheter damage reports are known from literature (2) and (3). If the safety case is not used correctly or it is displaced, the catheter can still be cut with a needle cut, which can cause damage to vital centers in the body. Therefore, for an animal in a state of limited mobility, this device is not applicable.

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as a prototype, a device (4) was selected consisting of a piping, a puncture needle with a mandrin and a longitudinal slot and a disposable hyocoro polyethylene catheter.

The action of the device is as follows: the puncture of the blood vessel is carried out with a needle with a mandrel, after which the mandrel is removed from the needle, replaced with a flexible catheter, the needle is removed from the animal’s body, removed from the flexible catheter through a longitudinal slot in the needle and infusion is carried out through a flexible catheter.

In this way, damage or tearing of the flexible catheter by the needle is excluded and the method of introducing the catheter into the vessel is simplified.

However, a veterinarian practitioner in the countryside is facing difficulties in acquiring flexible disposable catheters, their relative high cost, and also disposing of waste disposable catheters that pollute the environment.

The proposed utility model eliminates the above disadvantages. The essence of the proposed utility model is that it is a device characterized in that the catheter has the appearance of a tube made of metal, the wall of the tube has additional openings for fluid to enter the body, and the end of the tube is rounded and has a hole smaller than the inner diameter. In Fig., Given a General view and the device of a metal catheter: 1-tube; 2-internal channel; Catheter pavilion 3; 4-outlets. The proposed catheter differs from the known flexible disposable catheter in that it is made of metal. This allows many times to perform high-quality cleaning and sterilization of the catheter, which eliminates the issue of disposing of flexible catheters and environmental pollution with chemical and oiological harmful waste, as the biogenic medium that is in the used flexible catheters is not completely destroyed even after sterilization before disposal. The use of a metal catheter significantly reduces the cost of infusion therapy due to repeated use and low wear during operation.

The holes in the wall of the tube of the metal catheter provide a drip or jet infusion of fluid into the body of the animal. The presence of several holes on the catheter allows you to communicate the desired rate of infusion, which is the superiority of the proposed catheter compared with the prototype.

The presence of a rounding at the end of the tube and the hole in size smaller than the inner diameter of the tube allows the metal catheter to have a blunt end, which prevents injury to the inner wall of the vessel and the occurrence of inflammatory processes in it, and also allows the animal to be in a state of limited mobility during infusion, as it ensures safe the introduction of fluid into the body during any period necessary for this procedure.

Example. We prepare the surgical field, for example, in the neck of the animal. On the right side along the external yarmine vein, at the place of transition of the upper third of the neck to the middle third, we place a rubber tourniquet below the proposed puncture site so that the vein is very full

- 3 blood and better marked. Then we carry out a puncture of a vein towards the shoulder joint with a puncture needle with a longitudinal slot and mandrin. After the needle has entered the lumen of the vein, we remove the mandrin from the needle and insert a metal catheter with mandrin into the vein through the needle. The catheter is fixed with a ligature, hem the ligature to the skin of the animal.

The fluid infusion is carried out in the following order. We squeeze the vessel so that it is more filled with blood, then we remove the mandrin from the metal vascular catheter and when blood appears in the catheter pavilion we connect a cannula to it from the pipeline of the infusion system. The infusion is carried out drip or jet. During infusion, the mobility of the animal is somewhat limited. The degree of mobility of the animal is determined by the length of the rubber tube, which leads the fluid to the catheter from the infusion source. The infusion may last several hours. After the end of the infusion, disconnect the cannula of the pipeline of the infusion system from the catheter, insert the mandrin into the catheter, which prevents bleeding from the vessel. We isolate the skin area with the catheter from the external environment with a protective bandage, which we fix with adhesive tape on the skin of the animal.

With subsequent infusion, the entire procedure is repeated with the observance of the rules of asepsis and antiseptics.

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Sources of information:

1.Rauzen M. et al. Percutaneous catheterization of the central veins, M, Medicine, 1986, p. 18-25

2.Bull Z.M. Discussion on the treatment of anuria Proceedings of the Roy - al Society of Midicine, 1952 / 45,848.

3.Chalmers J.A./ Fawns H.J. Prolonged anuria treated by infusion into the vena cava - Zancet, 1955 / 1.19.

4.V.A. Matveev A method of delayed introduction of fluid into the body of an animal and a device for its implementation.

Patent No. 178382 dated 12.20.90

Claims (1)

A device for multiple infusion therapy, including a tubing, a puncture needle, a mandrin and a catheter, characterized in that the catheter has the form of a tube made of metal, the wall of the tube has additional openings for fluid to enter the body, and the end of the tube is rounded and has an opening smaller than the inner diameter.