SU285170A1 - DEVICE FOR MANUFACTURE OF FOREIGN INJECTIONS - Google Patents

Description

The invention relates to medical technology, and names; but to devices for slow injection.

There are known devices for the production of slow-moving: I1vje "ts1II, containing / KOipiniyc, mounted) injection syringes with cylinders and working bodies, a thermostat with a thermometer, a drive mechanism for working bodies, an electric motor with a gearbox, and interacting with a drive mechanism for working bodies . However, these devices can not be used for injection of viscous, quickly drying in air liquids, such as: they form: on the walls of the syringe a solid or lolhtuduyu film, which leads to jamming of the working organs. At the same time, the overcoming of the resistance of the working bodies by the working bodies inevitably causes a pressure increase that can lead to the rupture of shallow and 1Н | КЮ | sten1н.ыхх Юойуаа, and Т1К; to the exit from the device.

To eliminate this, in the proposed device, the working bodies are made in the form of elongated glasses-plungers, and in the hollow cylinders there are gland rings made of non-wetting material, such as fluoroplastic.

In this way, the liquid film is completely removed from the polished surface of the plungers immersed in the liquid in the reverse course, in the process of filling the hollow cylinders with a new portion of injection liquid. Since there is no air inside the hollow cylinders, the injection fluid of the inner edge of the gland rings does not solidify.

FIG. 1 shows the proposed device, general view; in fig. 2 is the same, but the section .4-A in FIG. one.

In the corus / medical injection devices, two hollow cylinders 2 made of a material with high thermal conductivity are mounted. Two continuous elongated glass-plunger 3 of smaller diameter are introduced into cylinders through stuffing box holtz 4, made of a material that is not wet with a liquid, for example, fluoroplastic. The device includes a drive microelectric motor 5, microswitches 6, a base gear 7, a system of distribution gears 8 fixedly mounted on the spindles 9. Screws 9 have running nuts 10 that are kept from turning by the antennae 11, which enter the longitudinal slots of the 12, and can only move in axial direction. The cylinders are inserted into the cylindrical cavities 3 of the thermostat 14. filled to the correct level with water. The thermostat housing serves as an electrode, and the second electrode 15 is embedded in it.

When electric current is passed from a step-down transformer through water, the latter is heated to a certain temperature. The temperature of the injection mass is maintained in the working, their cylinders 1. The temperature of the water in the tank is monitored by a thermometer 16.

The pressure of the injected ionic fluid at the outlet is monitored by a pressure gauge (not shown in the drawing).

The device is equipped with a power supply unit connected to a single flexible cable (not shown in the drawing). The power supply includes a Seb. PON: Izhayushchiy transformer, rectifier, speed controller. The rotation of the power supply | rod | Itatel and temperature controller.

The device being polished operates as follows.

When the micro-motor is turned on, the movement is transmitted to the running cocks through the reduction gear, the distribution gears system and the XO | Dovye screws. Moving in the axially nibbled, the running nuts push the plunger glasses, which force the injection fluid out of the hollow cylinders.

In the extreme positions of the spindle nuts, the microswitches automatically stop the low-speed micromotor. Pr: And by the idle return stroke, which is achieved by reversing the single micromotor, the ganks 10 move away from the ends of the plungers and return, grow to their original position.

When releasing the plate latches (not shown in the drawing), the hollow cylinders are removed from the cylindrical cavities of the thermostat and are filled with a new portion of the injection of the H1H1NH1ID1Sh01Sp: and. In the case of crraiKaiHibi-injuyHzheriy, the entirety is pulled out of the hollow cylinders, the passage through the gland rings, and their surface is cleared from the injection of saline.

P re d iM e invented and

A device for producing slow injections, comprising a housing in which injecting housings with hollow cylinders and operating elements are mounted, a thermostat with a thermometer, a mechanism for controlling the movement of working elements, an electric motor with a reducer that interacts with a mechanism for driving the movement of working bodies, characterized in that in order to eliminate the possibility of closing the working bodies and ensuring uniform pressure during the slow injection of fast-drying liquids in the air, the workers performed IB Ideal elongated stakano.v-plunzheroa, and in the hollow cylinders are stuffing rings, made of non-wetting material, and apr. the size of the fluoroplastic.

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