RU212194U1 - Device for pathogenic reduction of blood components - Google Patents

Abstract

Apparatus for pathogenic reduction of blood components, separated from two sources of ultraviolet radiation, two rigid plates that transmit ultraviolet, as well as a peristaltic pump, a film cuvette with serpentine channels and a tube system, ultraviolet radiation sources are combined into one housing, forming an irradiation chamber, which has a hole to enter into it the irradiation unit, which consists of two rigid plates that transmit ultraviolet, located horizontally with a gap between the plates, while the gap serves to locate a film cuvette with serpentine channels in it. A device characterized in that the radiation source is located on only one side. A device characterized in that the source of ultraviolet radiation has an element that provides a change in the intensity of the ultraviolet flux. A device characterized in that a unit is introduced into the apparatus that controls the weight of the container with non-irradiated cell mass. A device characterized in that the source of ultraviolet radiation can change the distance to the cuvette, while changing the intensity of irradiation. EFFECT: simplification of the design.

Description

The device refers to devices for irradiating donor blood components with ultraviolet light of a certain range.

Known apparatus for photophoresis, including a housing that houses a peristaltic pump, a container for blood cells and two blocks of irradiation with ultraviolet lamps. In each block, ultraviolet lamps are located in the same plane. Between the blocks there is a cuvette, which, together with a container for blood cells and tubes, is included in a disposable system. The planes of the ultraviolet lamps in the irradiation blocks are horizontal and parallel. Irradiation blocks are located one above the other and have rigid plates transparent for ultraviolet radiation in front of ultraviolet lamps. The cuvette, which is a film cuvette, is located between rigid plates. [RU 196 088 U1]

The disadvantage of this apparatus is the presence of covers of each housing, which are installed solid plates that transmit ultraviolet light.

In addition, the bodies are connected by a hinge and racks of their fixation for the installation of a serpentine film cuvette.

Between the lids it is difficult to fix the cuvette and provide thickness in the cuvette for the flow of blood components.

Fixation is difficult. A system of pins on which the cuvette is pulled is made. Otherwise, she leaves.

EFFECT: simplification of the design.

The technical result is achieved by using a device for pathogenic reduction of blood components, separated from two sources of ultraviolet radiation, two rigid plates that transmit ultraviolet radiation, as well as a peristaltic pump, a film cuvette with serpentine channels and tubes, ultraviolet radiation sources are combined into one housing forming an irradiation chamber, which has an opening for introducing an irradiation unit into it, consisting of two rigid plates that transmit ultraviolet, located horizontally with a gap between the plates, while the gap serves to place a film cuvette with serpentine channels in it.

Alternatively, the ultraviolet radiation source can be located on one side only.

The source of ultraviolet radiation may have an element that provides a change in the intensity of the ultraviolet flux.

The device can be introduced node that controls the weight of the container with non-irradiated cell mass. The source of ultraviolet radiation can change the distance to the cuvette, while changing the intensity of irradiation.

Fixation of a film cuvette with serpentine channels is not difficult. There is no system of pins on which the cuvette is pulled. It is impossible to change its position. It is placed in a kind of tray.

In FIG. 1 – view of the device from the front side. In FIG. 2 is a side view of the device without a wall. In FIG. 3 - part of the irradiation unit.

The device consists of the following elements.

1 - container with non-irradiated cell mass;

2 - container with irradiated cell mass;

3 - peristaltic pump;

4 - tubes;

5 - irradiation chamber;

6 - ultraviolet sources;

7 - irradiation node;

8 - rigid plates, transmitting ultraviolet;

9 - serpentine film cuvette;

10 - body of the irradiation unit.

The device works as follows.

The cell mass is placed in a container with non-irradiated cell mass 1 and a disposable system is installed, which includes a container with non-irradiated cell mass 1, a container with irradiated cell mass 2, tubes 4. From the container, the cell mass through tube 4 enters the peristaltic pump, and from it through the tube into the inlet fitting of the cuvette, and from the outlet fitting of the cuvette into the container with irradiated cell mass 2.

Tube 4 is connected to a container with irradiated cell mass 2.

Position 5 in the device indicates the irradiation chamber.

In the irradiation chamber, ultraviolet sources are located at position 6.

Position 7 - the irradiation unit, which includes position 8 - the plates are rigid, transmitting ultraviolet. Position 9 - serpentine film cuvette

Position 10 - housing of the irradiation unit.

The device works as follows. The peristaltic pump 3 is turned on, and the cell mass from the container 1 through the tube 4 with the help of the pump 3 enters the cuvette, where it is irradiated using ultraviolet irradiation sources.

The cell mass is drained through tube 4 into a container with irradiated cell mass 2.

The irradiation process is completed.

The pump and radiation source are switched off.

Tube 4 on the fitting, through which the serpentine

9, the cell mass is raised above the plane of the cuvette. Or at the outlet of the tube, through which the cell mass flows out of the cuvette 9, a jet is installed. Each of these options creates excess pressure in the channels of the cuvette, which presses the film cuvette against both plates that transmit ultraviolet.

It is possible to place an element that provides a change in the intensity of radiation. The brightness of the LEDs decreases with time, and if the measurement with a luxmeter shows this, it can be increased with a regulator or by changing the height.

It is possible to place a display and a weighing device on the device, and when the weight becomes zero (minus the weight of the container), the device will turn off.

By changing the height between the rigid plates that transmit ultraviolet, it is possible to change the thickness of the cell mass flowing through the channels of the cuvette.

Claims (3)

A device for pathogenic reduction of blood components, consisting of two ultraviolet radiation sources, two rigid plates capable of transmitting ultraviolet radiation, a container with non-irradiated cell mass, a container with irradiated cell mass, inlet and outlet fittings of the cuvette, as well as a peristaltic pump, a film cuvette with serpentine channels and tubes, in which ultraviolet radiation sources are combined into one housing, forming an irradiation chamber, which has an opening for introducing an irradiation unit into it, consisting of two rigid plates, made with the possibility of transmitting ultraviolet radiation, located horizontally with a gap between the plates, while the gap is made with the possibility of placing a film cuvette with serpentine channels in it, while the ultraviolet radiation source has an element configured to provide a change in the intensity of the ultraviolet flux, in addition, the device is made with the possibility the axis of creating excess pressure in the channels of the cuvette, which presses the film cuvette against both plates that transmit ultraviolet light. 2. The device according to claim 1, characterized in that the radiation source is located on one side only. 3. The device according to claim. 1, characterized in that the source of ultraviolet radiation is made with the possibility of changing the distance to the cuvette and changing the irradiation intensity.

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