RU2493880C2 - Suction-expression breast pump - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment and aims at milk expression in a nursing woman. The breast pump comprises a peristaltic pump, a nipple cover, a milk collection bottle coupled by hoses. The peristaltic pump is double-row, roller hobs are movably coupled with roller yoke in guides through springs. The hose connected with one of the rollers used to generate vacuum is coupled with the cover and bottle. The other hose connected with the roller used to generate excessive pressure is connected with a flexible star-like expression assembly.

EFFECT: provided simple controlled milk expression.

4 cl, 3 dwg

Description

The invention relates to medical equipment and is intended for expressing milk in a nursing woman.

Breast pumps are manual, electronic and electric [http://www.molokootsos.ru].

Manual vacuum breast pumps are ineffective, it is impossible to regulate the amount of vacuum and the speed of pumping, they injure the mammary glands. Electronic and electric breast pumps are difficult to set up, expensive and only express milk through a vacuum.

Known breast pump containing a peristaltic vacuum pump connected by hoses to the lining on the nipples of the chest and a reservoir for collecting milk. [USSR AS NN946554, 1456156 IPC A61M 1/00].

These suction-acting breast pumps work only due to vacuum; regulation of the process of expressing milk is not provided.

The purpose of the invention is the creation of a suction-squeezing action simple in the device of the breast pump with an adjustable process of expressing milk.

This is achieved by the fact that in a breast pump containing a peristaltic pump, an overlay on the nipple, a milk collection bottle connected by hoses, the pump is double-row, one pump roller creates a vacuum for sucking milk, and the second roller creates excess pressure in an elastic star-shaped device applied to the surface of the chest, and the forks of the rollers are connected to the hubs in the guides through the springs, the hubs of the rollers and the shaft have a spline connection; the outer part of the shell of the star-shaped device is thicker than the inner one, and the connecting hoses going to the chest are made of a smaller diameter than the working deformable hoses of the peristaltic pump.

Figure 1 schematically shows a breast pump; figure 2 is a rear view of a star-shaped elastic pneumatic device; figure 3 is a section of a peristaltic pump according to BB from figure 1; figure 4 is a cross section of the appendix of the device of figure 2.

The breast pump contains a lining 1 on the nipple 2 of the chest 3, which is connected via a hose 4 to the deformable hose 5 of the peristaltic pump, the other end of the hose 5 is connected by a hose 6 to the bottle 7 for expressed milk. The peristaltic pump has a housing 8 with two guide tracks 9, closed by a transparent cover 10. On the shaft 11 with a manual drive 12, the hubs 13 are mounted on the splines, which are connected to the forks 14 of the rollers movably through the springs 15. The roller 16 serves to create a vacuum, and 17 to create excess pressure. The second hose 18 of the peristaltic pump, which creates excessive pressure, is connected with a connecting hose 19 to a star-shaped elastic pneumatic device 20, the processes of the shell 21 of which outside 22 are thicker than the inner 23 of the shell.

The breast pump works as follows.

Before expressing milk, hoses, linings are sterilized, nipples are treated. To express milk simultaneously from both breasts, a tee connection is established. The pads 1 are applied to the nipples 2, and the elastic star-shaped device 20 is placed on the chest by the processes 21 from all sides. They can be hung with a ribbon around the neck. When the pump shaft 11 is rotated by the handle 12, the rollers are rolled along the hoses 5 pressed to the paths 9 of the housing 8. In this case, the roller 16 creates a vacuum by displacing air from the hose 5, and the roller 17 creates excess pressure by pumping air into the hose 19. The vacuum is transmitted on the pads 1, and the excess pressure in the star-shaped squeezing device 20; while the processes 21 slightly press on the chest, and milk due to suction through the hoses 4, 5 and 6 enters the bottle 7.

When the rollers are mounted in one direction, suction and squeezing occur simultaneously. When installing the rollers through 180 °, alternation of exhaustion and squeezing occurs. The magnitude of the vacuum and overpressure depend on the length and diameter of the pump hoses 5 and the connecting hoses 4 and 19, as well as on the speed of rotation of the shaft. The pump drive can be from an electric motor.

The proposed breast pump provides a sparing mode of expressing milk without injuring the nipples and mammary glands, eliminates mastopathy, imitates the natural sucking of the baby.

Claims (4)

1. A breast pump containing a peristaltic pump, an overlay on the nipple, a bottle for collecting milk, connected by hoses, characterized in that the peristaltic pump is double-row, the hubs of the rollers are connected to the forks of the rollers in the guides movably through the springs, the hose connected to one of the rollers, used to create a vacuum, connected to the pad and the bottle, another hose connected to the roller, which serves to create excess pressure, connected to an elastic star-shaped squeezing device. 2. The breast pump according to claim 1, characterized in that the hubs of the rollers and the shaft of the peristaltic pump have a spline connection for adjusting the alternation of the processes of exhaustion and squeezing. 3. The breast pump according to claim 1, characterized in that the outer part of the shell of the elastic star-shaped device has a greater thickness than the inner. 4. The breast pump according to claim 1, characterized in that the connecting hoses going to the chest have a smaller diameter than the working deformable hoses of the peristaltic pump.

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