SU919679A1 - Apparatus for local changing of blood circulation rate - Google Patents

Description

(5) DEVICE FOR LOCAL CHANGE OF CIRCULATION CAPACITY

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The invention relates to the physiology of agricultural animals and is intended to affect the physiological functions of the organs of the abdominal cavity by a local change in the blood circulation rate.

A device is known for locally varying the blood circulation velocity, comprising a sealed chamber with means for creating an alternating pressure therein, in the front wall of which a means is fixed for fixing a part of the object body and sealing the chamber 11. A disadvantage of the known device is that it cannot be used for farm animals.

The purpose of the invention is to create conditions under which it is possible to stay in the animal's chamber.

This goal is achieved by the fact that the front wall of the chamber is made of an elastic material, and the means for fixing a part of the body is an elastic funnel covered by straps providing stretching of the front wall of the chamber. .

 FIG. 1 and 2 shows the device, a general view; in fig. 3 front wall of the chamber; in fig. - distribution valve.

The device is mounted on a flat.

10 on the pad 1 having the wheels 2. On the pad 1, the chamber 3 is rigidly mounted with the hermetically closed door C, Tightness is achieved due to the expansion rubber

15 pads 5 and banding clamps 6 and 8. To observe the condition of the animal, a window 7 serves to maintain the necessary pressure by means of pumps through the pipe 9,

To the valve trickle 10 and the pipe 11. In the pipe 9 is installed distribution valve 1, which using the handle 13 connects the camera with

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vacuum pump or compressor. The distribution valve consists of a housing 1 with a nozzle 15 For connection with the chamber through the nozzle 9 and nozzles 16 and 17 for connecting the chamber with a compressor and a vacuum pump. Inside the housing there is a lapped tube 18 with six holes 19 and oblique partitions 20 and 21.

The pressure is monitored by means of a pressure gauge 22 connected through pipe 11 to the chamber 3 by a rubber tube 23. To maintain the required temperature, a zigzag coil filled with water through pipe 2 serves to maintain the required temperature. Water flows from pipe 25.

The front wall of chamber 3 (FIG. 3) is made of rubber. It is attached to the corner frame of the front wall with screws and a metal clamping frame 26. The rubber wall 27 of the chamber has an opening surrounded by a collar 28 "With the help of four cloth belts 29, two rollers (upper 30 and lower 31) and handle 32, the collar is stretched a rectangular opening sufficient for the animal to pass; To fix the front part of the animal’s torso, two movable trellis walls 33 are mounted on the platform 1 and suspended on loops 3. The lattice walls 33 are fixed in a certain position in accordance with tvii with the size of the animal latches 35 Zb screw with a handle. The lattice wall consists of two halves that fit one into the other, which makes it possible to adjust the wall length, and a screw 37 serves to fix this length.

The device works as follows.

Opening door A with the collar 28 extended, the animal is pushed into chamber 3. Then the door is closed and firmly fixed with screw clips 6. The chamber is designed so that the extended front wall collar tightly encloses the chest of the animal after the belts 29 are released. After the animal is placed in the chamber, unwinding the handle 32, release the straps and push them through the collar into the chamber. Using screws 36 and 37, the movable lattice walls 33 are mounted so that the animal is in the

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position required for the experiments. In this position, the walls 33 are fixed by a latch 35. Then the air is sucked to the desired value (in general, J is no more than 100 mm Hg below atmospheric) and with the help of a crane 10 they hold the pressure for the required time. At this time, the compressor injects air through pipe 16, but

10 it will not get into the chamber, since the partition 21 is located on its way and the air goes outside. The simultaneous operation of the compressor and vacuum pumps is necessary in order

) 5 to quickly (without pauses) to move from one pressure in the chamber to another (from negative to positive and vice versa). If the handle 13 rotates the internal ground jpy62Q ku 18 by 180 °, the vacuum pump continues to suck air from the surrounding space through the open end of the tube 18, and the compressor forces air into the chamber. If in camera

25, the vacuum pump will create more negative pressure than necessary, then the valve 10 opens, and outside air enters the chamber. When the compressor is running high pressure

3Q is also provided by the crane 10. The proposed device allows creating alternately increased or reduced pressure on the abdominal cavity of an animal with various practical purposes, but mainly to increase its productivity.

Claims (1)

1. USSR author's certificate No. 2t09 1, cl. A 61 M 16/02, 1969. 19 L