SU1648367A1 - Device for recording general motor activity of laboratory animals - Google Patents

Abstract

The invention relates to medicine and m. used to record the total motor activity of laboratory animals. The invention makes it possible to increase the accuracy of measuring the motor activity of laboratory animals by determining the number of motor acts. Inertial motion sensors 1 are attached to the test animals, connected to the input of turning on the radio transmitters 2 with the antenna. Radio pulses arising in the process of animal movement are received by the radio receiver 3 with the antenna and within the time specified by the control unit 6 are recalculated for each animal by 4 pulse counters and at the end of the specified time interval are recorded by the registration units 5 by the command of the control unit 6. The number of pulses recorded in each channel characterizes the motor activity of the test animals. 1 il.

Description

The invention relates to medicine and medical technology and can be used to assess the degree of exposure of various pathogenic factors to laboratory animals by examining their physical activity.

The aim of the invention is to improve the accuracy of measuring motor activity by determining the number of motor acts.

The drawing shows a block diagram of a device for recording the total motor activity of laboratory animals.

The device contains inertial motion sensors 1, radio transmitters 2 with antenna, radio receivers 3 with antenna, counters 4 pulses, blocks 5 of registration and block 6 of control.

The device works as follows.

Before testing animals are freely placed in individual enclosures (cages) or in test specimens of engineering structures. Each animal is fixed to a radio transmitter 2 with an antenna, at the entrance of which an inertial sensor 1 is installed. Inertial sensor 1 of movements is, for example, a spring-loaded mechanical pendulum that is triggered by movements of the animal in a vertical plane. Radio receivers 3 are installed near the animal sites with an antenna, which is connected by a cable line to the control and recording station.

The study of the total motor activity of animals is carried out by turning on the device for recording the total motor activity of laboratory animals from the control point to the exposure.

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studied pathogenic factors to remove background indicators and immediately after such exposure. At the same time, at the inputs of the radio transmitters 2, the actuation of the inertial sensors 1 is converted into an electrical signal and transmitted to the inputs of the radio receivers 3. From the outputs of the radio receivers 3, the converted output signal goes to the corresponding counting channel consisting of a counter of 4 pulses and a recording unit 5. Pulse counters 4 continuously accumulate information on the total animal's motor activity by a signal from the control unit 6, which also sends signals to periodically turn on the registration units 5 to retrieve and record information from the outputs of the 4 impulse counters at specified points in time. For example, the control unit 6 may, at a predetermined time interval, periodically generate minute intervals, during which the number of motor acts of each animal is calculated. At the end of each minute interval, a second pulse is generated at the second output of block 6, which instructs the registration blocks 5 to register the readings of counters 4.

Claims (1)

Based on the recorded indications, the background total motor activity of the experimental animals is compared with their general motor activity under the test conditions, then the results of this comparison assess the change in the state of the experimental animals of different experimental groups, the strength of the effect factor and make decisions therapeutic agents and the degree of protection of engineering structures. Apparatus of the Invention A device for recording the total motor activity of laboratory animals, containing motion sensors and recording units in an amount corresponding to the number of animals studied, differs from the fact that, in order to improve the accuracy of measuring motor activity by determining the number of motor acts, it is additionally contains radio transmitters attached to animals with an antenna, the input of which is connected to motion sensors made in the form of inertial sensors is also fixed on animals, serially connected radio receivers with an antenna, placed in close proximity to animal locations, and pulse counters, whose outputs are connected to information inputs of registration units, as well as a control unit, the first output of which is connected to the pulse count counter enable input, and the second exit - to the input of the control of the registration blocks. r-unlL 4 b 9 j l /  W CH