SU818573A1 - Device for building-up of physical dynamic load on animals - Google Patents

Description

one

The invention relates to laboratory instruments for conducting animal experiments, namely, devices for creating a physical dynamic load on animals, including a continuous moving track (treadmill), and can be used in experiments on small laboratory animals, such as rats.

There are known devices for creating a physical dynamic load on animals, which are a continuously moving belt (belt type treadmill) 1,

The disadvantage of such devices is that the animal must be pre-trained for running on such a track. The training process is essentially the creation of a conditioned reflex, which affects the purity of the experience.

It is also known a device for creating a physical dynamic load on animals, which is a rotating drum, into which experimental animals (a drum-type treadmill) 2 are placed.

The disadvantage of this treadmill is that it has only one moving track, which does not allow the experiment to be performed on several animals simultaneously. In addition, the width of this track cannot be adjusted according to the size of the individual animal, and the side walls are movable relative to the animal.

The aim of the invention is to achieve the possibility of conducting an experiment on several animals at once.

The goal is achieved by the fact that the drum is provided with partitions, which are located perpendicular to its axis and freely highlighted on the shaft of the drum.

The drawing shows a General view of the device.

The device contains a drum 1, the side walls of which are made of transparent organic glass. The drum is fixed on the shaft 2, resting on the supports, mounted on racks (not shown), which are welded to the base 3. Inside the drum, perpendicular to its axis of rotation, are the partitions 4. They are made of transparent material for observing the animals. Between the lower edge of the walls and the treadmill maintained a minimum gap of up to 2 mm. All partitions are fixed on the crossbar 5. The distance between the partitions can be changed by displacing them along the crossbar while loosening the clamping screws.

6. Partitions together with the crossbar are suspended in the form of a tilting suspension on the axis of the drum 2.

The drum is driven in time by the electric motor 7 through the gearbox 8 and the belt drive 9. The rotational speed of the drum can be changed by changing the pulleys of the belt drive 9, as well as using the autotransformer 10.

The roller lever 11, while rotating the drum 1, presses the push-button switch of the electric meter 12, which counts the number of revolutions of the drum, i.e., the amount of path traveled by the animal.

In the course of the experiment, it was found out that the treadmill is easy to use, the distance between the partitions is easy to change, and the partitions themselves are easily removed for sanitization.

Introduce animals to the treadmill treadmill, monitor behavior

animals during the experiment, as well as take them out easily and conveniently.

Claims (2)

1.Materials for macro-microscopic anatomy, vol. 6, Kharkov, 1969. 2. “Healthcare of Belarus, 1967, No. 6, (prototype).