RU131892U1 - DEVICE FOR MODELING ISCHEMIA - Google Patents

Abstract

A device for simulating ischemia, characterized in that it includes an electromagnet control unit combined with a hydraulic compressor and pressure gauge, a connecting cable and connecting tubes that are mated with half-cuffs to fill with physiological saline, and a hydraulic pump for regulating the rate of pressure increase using the pressure step adjustment buttons, however, two rubber half-cuffs are located inside the plastic half-couplings, which are installed with the possibility of combining around the feeding organ aboratornogo animal vessel, one of the coupling halves is provided with electromagnets, and another - of paramagnetic material surfaces.

Description

The utility model relates to medicine, namely to experimental surgery, and can be used to model an episode of ischemia of internal organs of laboratory animals.

A close solution is a device for obstruction of the renal vessels, developed by Latypov V.R. et al. Patent No. 2218111.

However, the use of this device is limited to its use in humans and large laboratory animals, and this device also does not allow to dose the degree of compression of the vessel. The design features of the proposed device allow you to use it to reproduce episodes of ischemia in laboratory animals of various sizes, to control the degree of vascular compression, to reduce the injury to the vessel at the site of application of the device.

EFFECT: simulation of an ischemic episode of an organ of an experimental laboratory animal by elastic compression of a feeding vessel using a device consisting of a compression unit, a control unit, connecting tubes and a cable.

The technical result is ensured by the fact that the proposed device for modeling ischemia includes an electromagnet control unit combined with a hydraulic compressor and pressure gauge, a connecting cable and connecting tubes that are joined with half-cuffs to fill with physiological saline, and a hydraulic pump for regulating the rate of pressure increase using the step adjustment buttons pressure, while two rubber half-cuffs are located inside the plastic half-couplings, installed with the possibility of In order to combine around the feeding organ of the laboratory animal vessel, one of the coupling halves is equipped with electromagnets and the other with surfaces of paramagnetic material.

The utility model is illustrated by the following figures.

Figure 1 shows the compression unit. Figure 2 shows the device assembly.

The device consists of a plastic coupling A (1), with electromagnets (2) and an opening (3) for the connecting tube of the rubber half-sleeve, with a connector (4) for the electromagnet and a connecting cable that connects when electromagnets (2) are connected to the plastic coupling half (5) with surfaces of paramagnetic metal (6), an electromagnet control unit (7) combined with a hydraulic compressor and pressure gauge, with a gauge indicator (8), LED pressure step scale (10), pressure step adjustment buttons (13), gy pressure gauge (14), power buttons of the electromagnet (15), connecting electric cable (9) connecting the control unit (7) and electromagnets (2), rubber half cuffs (11) located inside the plastic half-couplings (1,5) of the connecting tubes ( 12) connecting the rubber half cuffs (11) and the hydraulic compressor with a manometer in the control unit.

The device operates as follows: after isolating the supply vessel around it, two half-couplings 1,2 and half-cuffs 11 are combined so that the supply vessel is in the groove between the two half-cuffs. Next, the electromagnets are turned on by button 15, thereby preventing the divergence of the two coupling halves. The connecting tubes 12 are joined with half cuffs and filled with physiological sodium chloride solution. Press the button 15 to turn on the hydraulic pump and adjust the rate of pressure increase by buttons 13, controlling the target pressure on the scale of indicator 8. When the target pressure is reached, the hydraulic pump is turned off. After playing back the episode of ischemia, the rubber half cuffs are disconnected from the connecting tubes.

Thus, the proposed device compares favorably with the prototype, its technical solution allows to achieve a technical result due to the fact that the design features of the invention, namely the rubber half-cuffs located inside the plastic half-couplings with electromagnets and paramagnetic metal plates allow smooth elastic compression of the supply vessel without it injuries due to a rise in pressure inside the system, and an electromagnet control device combined with a hydraulic com a pressor and a manometer allows you to keep the pressure inside the system of tubes and cuffs precisely at the target level.

Using the proposed device allows to solve a number of problems:

1. Compress the supply vessel without injuring it.

2. Accurately dose the compression pressure of the vessel.

3. To reproduce ischemia in cases where the imposition of other devices is technically impossible.

Claims (1)

A device for simulating ischemia, characterized in that it includes an electromagnet control unit combined with a hydraulic compressor and pressure gauge, a connecting cable and connecting tubes that are mated with half-cuffs to fill with physiological saline, and a hydraulic pump for regulating the rate of pressure increase using the pressure step adjustment buttons, however, two rubber half-cuffs are located inside the plastic half-couplings, which are installed with the possibility of combining around the feeding organ aboratornogo animal vessel, one of the coupling halves is provided with electromagnets, and another - of paramagnetic material surfaces.

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