SU768400A1 - Apparatus for taking and transplanting bone marrow - Google Patents

Description

one

The invention relates to medical technology.

A device for taking and transplanting bone marrow is known, which contains an aspiration line with a container for the bone marrow mixture, an aspiration unit with a vacuum source and a vacuum regulator, and a preservative supply line with a dispenser 1.

However, this device does not provide a smooth, controlled process for the collection and transplantation of the bone marrow, which increases pain, and in addition, the device has the likelihood of a thrombosis of the aspiration unit, which reduces its reliability.

The aim of the invention is to reduce pain through a smooth, controlled process of bone marrow transplantation and transplantation, as well as to prevent the clotting of the aspiration unit.

The goal is achieved by the fact that in the device the aspiration unit is made in the form of external and internal channels, while the internal channel is connected to the dispenser through the supply line of the preservative, and the external channel through the aspiration line to the container for the bone marrow mixture connected to the vacuum source through the vacuum regulator .

In this case, the dispenser is made in the roller pump type.

In addition, the vacuum regulator is designed as a bellows with an electromagnetic core and a control unit.

FIG. 1 is depicted. schematically a device for bone grafting and transplantation; in fig. 2 - aspiration unit in cross section; in fig. 3 is a device prepared for administering bone marrow to a recipient.

The device contains a line of aspiration and supply of preservative, connected to the node 1 aspiration, made in the form

15 concentric channels: internal channel 2 for the supply of preservative and external channel 3 for aspiration of the bone marrow mixture. The internal channel 2 is connected by pipe 4 through the counter 5

20 of the amount of preservative injected and the metering device in the form of a capacity regulator 6 with a roller pump 7, which, in turn, is connected by a pipe 8 to a preservative tank 9 equipped with an air inlet 10 with a bactericidal filter.

The counter 5 of the amount of preservative introduced is made in the form of a roller pump speed sensor, counting the number of honest rotor speed of the pump provided.

What is known is the amount of preservative ejected by the pump per revolution.

The flow controller 6 is designed as a roller pump speed regulator per unit of time.

The outer channel 3 of the suction unit 1 is connected by a pipe 11c with a tank 12 for the bone marrow mixture. The container 12 is connected by pipeline 13 through the regulator 14 of the vacuum pressure with a vacuum source in the form of a vacuum pump 15.

The vacuum regulator 14 is made in the form of a bellows with an electromagnetic core connected to the control unit.

The device works as follows.

The roller pump cyclically compresses the pipe 8, which connects the tank 9 of the preservative with the node I aspiration, and pushes a portion of the preservative through the pipe 4 into the internal channel 2 of the node aspiration.

The vacuum pump 15 at the same time creates a vacuum and bone marrow, displacing the preservative at the tip of the aspiration unit I in the form of a bone marrow mixture, moves through conduit 11 into the tank 12. If necessary, a given ratio in the bone marrow mixture of the bone marrow and the preservative is set by regulator 6 productivity and the magnitude of the vacuum specified by the regulator 14 of the vacuum.

In the case of the introduction of the bone marrow mixture to the recipient, a tank 9 filled with bone marrow is connected to a roller pump 7, a filter 16 is included in the pipe 4 for trapping air bubbles, and the aspiration unit 1 is changed to an ordinary injection needle 17. In this position, the pump and the bone marrow mixture are turned on administered to the recipient.

The device provides maximum preservation of bone marrow cells when it is aspirated from donors and corpses, as well as when administered to recipients by drip and jet methods intravenously or intravenously. This effect is due to the presence in the device of a rarefaction regulator, which automatically maintains a given amount of negative pressure, regardless of the varying resistance to the outflow of the bone marrow. This ensures a smooth selection of the aspiration regime. Due to the fact that the mixing of the aspirated bone marrow occurs at the very tip of the aspiration unit, thrombosis of the aspiration unit is completely eliminated. The device can be applied in

as the main pipelines of the single use system, which will eliminate the need for sterilization in preparing the device for each subsequent aspiration.

Claims (3)

1. A device for taking and transplanting the bone marrow, containing an aspiration line with a container for a bone-carrying mixture, an aspiration unit with an acum source and a dilution regulator, and a manifold of supply of a preservative with a dispenser, characterized in that smoothly reducing pain through a regulated process of bone marrow transplantation and transplantation, as well as to prevent thrombosis of the aspiration unit; the aspiration unit was performed in the external and internal channels; the internal channel is connected to the dispenser through the preservative supply line, and the external one through the aspiration line a container for the bone marrow mixture, connected to a vacuum source via a vacuum regulator. 2. A device according to claim 1, characterized in that the dispenser is designed as a roller pump. 3. A device according to claim 1, characterized in that the vacuum regulator is made in the form of a bellows with an electromagnetic core and a control unit. Information sources, taken into account in the examination 1. USSR author's certificate No. 487642, cl. A 61M 1/00, 1973.