RU2710348C1 - Universal disposable syringe - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, in particular to injection devices and single-use food introduction appliances. In particular, the proposed device can be used for nutritional support of newborn infants and children with disturbed swallowing and sucking reflexes, with preservation of the injection function. Technical result is achieved by the fact that the universal disposable syringe consists of a working cylinder with a Luer-Lock tip, a piston with a rod and its stop. At the same time the working cylinder is equipped with a rail lock connection at the inlet for input of the rod stop. Rod stop has two diametral holes to partially shut off communication of working cylinder cavity with ambient medium, and outer surface of working cylinder has film tape with double-sided adhesive coating for cylinder fixation in vertical position.

EFFECT: wider field of use, higher simplicity and safety of use.

1 cl, 2 dwg

Description

The invention relates to medical equipment, in particular to injection devices and devices for the introduction of single-use food.

Known devices and systems for performing gravitational power, presented in the patent "Combined storage and delivery of nutrient compositions", which describes devices and methods suitable for storage and delivery of food compositions and other liquids (patent RU No. 2472485). The devices of the presented group and methods of their use are intended for adult patients having the need to use this feeding method. The systems and devices listed in it are not intended for installation in infusion syringe pumps and do not provide the possibility of introducing nutrient mixtures of small volume.

There are syringes for injection of various modifications, including for use with automatic infusion syringe pumps (RU No. 2351368, RU No. 2330687, RU No. 314130, RU No. 2289431, US 4929231 A) (analogues).

The closest analogue (prototype) is the “Disposable Syringe” device (patent RU No. 2358766), which consists of a needle, a body (working cylinder), a rod, a main piston and a piston of a rod.

The disadvantages of this device are the limitation of the scope (for example, the inability to perform the gravitational feeding procedure) and a high degree of contamination.

The aim of the present invention is to expand the scope, increasing the simplicity and safety of use. In particular, the proposed device can be used for nutritional support of newborns and infants with impaired swallowing and sucking reflexes, while maintaining injection function.

This goal is achieved by the fact that the working cylinder of the proposed universal disposable syringe is equipped with a rail lock connection at the inlet, the rod stop has two diametrical holes, which leads to a partial overlap of the message of the working cylinder cavity with the external environment, and, accordingly, to a decrease in contamination. This increases the safety of the application. The outer surface of the working cylinder has a film tape with a double-sided adhesive coating, which allows the use of a syringe for gravitational nutrition of infants.

The proposed universal disposable syringe (see Fig. 1 and Fig. 2) consists of:

1. the working cylinder 1 with the tip Luer-Lock 2, the input of the working cylinder 11 is equipped with a rail lock connection 5;

2. the piston 3 with the rod 4 and its focus 8, the emphasis of the rod 8 has two diametrical holes 6;

3. the outer surface 9 of the working cylinder 1 has a film tape with a double-sided adhesive coating 7.

This design makes it possible to perform nutritional support for newborns and infants with impaired swallowing and sucking reflexes, both in the form of a gravitational nutrition system and a syringe capsule for infusion syringe pumps, while maintaining the possibility of other medical manipulations. The above method of gravitational nutrition of newborns and infants with impaired swallowing and sucking reflexes, in comparison with the method of enteral gravitational nutrition allows for small volume nutrition and, accordingly, it is advisable to use nutrient mixtures and breast milk. In addition, the proposed syringe allows the procedure for feeding children outside medical institutions.

Technical solutions that have features that match the distinguishing features of our proposed method are not identified, which allows us to conclude that the proposed method meets the criterion of "inventive step".

The proposed universal disposable syringe works as follows:

To perform the gravitational nutrition procedure, first, an artificial nutrient mixture or breast milk is poured into the cavity of the working cylinder 1, up to 60 ml. Then, the emphasis of the rod 8 is introduced into the rail lock connection 5 of the working cylinder 1, while partially due to the presence of two diametrical holes 6 of the emphasis of the rod 8, the communication of the cavity 10 of the working cylinder 1 with the external medium is closed, resulting in a reduction in contamination. Next, tear off the protective film 7, to expose the adhesive surface of the fixation system located on the outer surface 9 of the working cylinder 1. Ultimately, the syringe is fixed in an upright position to the bed, incubator or treatment rack until the end of the feeding procedure.

We give examples of the application of the proposed universal disposable syringe.

Clinical example 1

Boy A., 8 days of life, a serious condition, caused by respiratory failure, prematurity. From the first hours of life on respiratory support, artificial ventilation of the lungs 24 hours, then through nasal cannulas. A state with positive dynamics by the 3rd day of life, without oxygen therapy. Hemodynamics for the entire observation period is satisfactory. From the second day of life, enteral feeding through a gastric tube with expressed breast milk was started. do not suck out of the horn alone. With a gradual expansion of the volume of feeding by the 8th day to 50.0 ml after 3 hours, periodic regurgitation is noted. On the 9th day, gravitational nutrition was started using the proposed universal disposable syringe. 50 ml of breast milk was poured into the cavity of the working cylinder. Then, the rod stop was introduced into the rail lock connection of the working cylinder, and partially due to the presence of two diametrical holes of the rod stop, the message of the cavity of the working cylinder with the external medium was blocked, as a result of which the contamination was reduced. After filling the universal disposable syringe with expressed breast milk, we attach the extension line system to the tip of the syringe, which we fill with expressed breast milk from the syringe to displace air. The other end of the extension line is connected to the end of the gastric tube. Then, a universal disposable syringe was fixed using a film tape with a double-sided adhesive coating to the wall of the incubator, above the head of the child. One hour after the end of feeding, the syringe is disconnected from the extension line and disposed of.

Clinical example 2

Boy B. 18th day of life, 9th day after surgery for ulcerative necrotizing enterocolitis, which is an indication for enteral feeding with artificial milk mixture in a volume of 30.0 ml after 3 hours. From a pre-prepared bottle with adapted milk mixture, we collect the required amount of the nutrient mixture in a universal disposable syringe. To the tip of the universal disposable syringe filled with the milk mixture, we connect the extension line system, fill it with the nutrient mixture, displacing the air inside. After the extension line is completely filled, we close its free end with a finger. With the other hand, insert the syringe into the infusion syringe pump for titration through the infusion syringe pump. The free end of the extension line filled with the milk mixture is connected to the end of the probe installed in the baby’s stomach. We turn on the infusion syringe pump at a speed of 15 ml / h. After 30 minutes, after the end of feeding, the syringe is disconnected from the extension line, removed from the infusion syringe pump and disposed of.

Clinical example 3

Boy E, 18 days of life, was admitted to the department of pathology of newborns with lack of stool for 4 days. According to the results of the survey, the diagnosis was made: Hirschsprung's disease. The rectification of the rectum is shown, which was performed using the proposed universal disposable syringe. At the same time, an injection needle was screwed onto the tip of the Luer-Lock of the working cylinder of the syringe, the cap was removed from it, it was injected into a bag with physiological saline and 30.0 ml was collected. Then twisted the needle from the tip. Then the tip of the Luer-Lock syringe working cylinder was connected to the end of the vent tube previously inserted into the ampulla of the rectum of the child. By slowly pressing the rod stop, physiological saline was introduced until the rod piston stops. After the procedure is completed, the syringe is disconnected from the gas outlet pipe and disposed of.

The proposed device is used in the intensive care unit and intensive care of newborns in the State budgetary institution of health care of the Yaroslavl region "Regional perinatal center."

Claims (1)

A universal disposable syringe consisting of a working cylinder with a Luer-Lock tip, a piston with a rod and its stop, characterized in that the working cylinder is equipped with a rail lock connection to enter the rod stop at the inlet, the rod stop has two diametric openings providing partial overlap of the cavity message the working cylinder with the external environment, and the outer surface of the working cylinder has a film tape with double-sided adhesive coating for fixing the cylinder in a vertical position.

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