RU2552592C1 - Device for testing muscles - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: device for testing muscles includes sensor of mechanic effort with bearings for pressure and device for reception, memorising and demonstration of its signals on monitor. Device contains fastened to basis spring-loaded lever with possibility to change its length. On the end of lever bearing with sensor of mechanic effort and button for switching on instrument for measuring pressure and time of strained muscle reaction on its stretching is placed. Between lever and basis block of lever breaking is installed. Device also contains block of additional load on lever with possibility of its adjustment.

EFFECT: simplification of technology of muscle testing, simplification of device construction.

2 dwg

Description

The invention relates to psychology, physical education and sports, healthcare, and can be used as a device for objective muscle testing in the process of psychological research, physical education and sports, in the diagnosis and treatment of patients.

A device for recording and measuring the amplitude of the electromyographic potentials of the studied muscle for objectification of muscle testing (Zenkov L.R., Ronkin M.A. Functional diagnosis of nervous diseases. - M .: Medicine, 1991. - S. 564).

A similar device is known that is used in the method of objectifying muscle testing according to the patent of the Russian Federation for invention No. 2171623, which divides the signal amplitudes by the value of its duration in time, allows one to subtract the mathematical expectation and dividing by the mean square value of the moving threshold level, determined by several series of reference measurements uniformly distributed over the total duration of the examination procedure.

A common drawback of these devices is that the test person performs muscle testing of the test person, these devices are not intended for self-testing of their muscles by everyone, in addition, electrodes are attached to the tested muscle, which is not convenient enough.

As a prototype, the device used in the method of objectification of manual muscle testing according to the patent of the Russian Federation for invention No. 2269927, which contains a mechanical force sensor (electronic dynamometer), consisting of two ebonite flanges: the lower flat and the upper mushroom-shaped, between which the device based sensitive element SBA-100L (CAS Corporation, Korea), Macintosh Performa 6360 personal computer, to the input of which an electric signal from the compressible element is supplied through the MacLab-4E (ADInstruments) system about between the flanges. In this case, digital recording of signals is carried out in a specialized software package "Chart-3.6.1 (ADInstruments)". Processing of recorded files is performed using the specialized software package "Chart-4.1 for Windows (ADInstruments)" on a Pentium II personal computer.

The disadvantage of this device is that the test person alone without the help of the tester will not be able to test their muscles, which complicates the technology of using this device. In addition, the device has a certain complexity (the device contains a computer, the MacLab-4E system (ADInstruments), specialized software packages).

The use of these devices is based on the fact of a decrease in the tensile reflex of a weak muscle when it is tensioned, which does not allow it to quickly and in time engage in the movement. At the same time, stretching a tense muscle is not carried out immediately after its tension, but only after more than 2.5 seconds (Applied Kinesiology. - 2007. - No. 8-9. - P. 9).

The objective of the proposed technical solution is to create a simple device for muscle testing, with which anyone can independently test their muscles and identify among them weak ones with a slow reaction to stretching.

The technical result, which the invention is directed to, is to simplify the technology of muscle testing using a device with a simplification of its design.

The problem is solved using the present invention, including a mechanical force sensor with a support for pressure, a device for receiving, memorizing and displaying its signals, while it contains a spring-loaded lever fixed to the base, with the ability to adjust its length, at the end of which there is a support with a mechanical force sensor and a power button for measuring the mechanical force and the reaction time of a tensed muscle to its tension, a lever braking unit, an additional mechanical unit Cesky force on the lever with the possibility of adjustment.

The claimed device differs from the prototype with new features, namely, that it contains:

- a spring-loaded lever fixed to the base, with the ability to adjust its length;

- a support with a mechanical force sensor and a power button fixed to the end of the lever;

- measuring instrument of mechanical effort and reaction time of a tensed muscle to its tension;

- a lever braking unit mounted between the lever and the base;

- block additional mechanical effort on the lever with the possibility of its adjustment.

From the above list of features of the claimed device and the achievement of the task it is clearly seen that the claimed technical solution is a new set of features, as a combination of known and new features, providing a new technical result, not known at the filing date of the application.

A new technical result that can be obtained by carrying out the invention is to simplify the technology of muscle testing using a device with a simplification of its design.

The proposed device is industrially applicable, as it can be used in psychology, physical education, sports and medicine. It can be carried out using well-known means and methods by a specialist in the field of technology, with general knowledge, without much difficulty and inventive activity.

The technical solution of the claimed device meets the criterion of "novelty", since it is not known from the prior art at the date of application. Not known from the prior art, the set of essential features of the claimed technical solution and their impact on obtaining the desired technical result.

The technical solution of the claimed device meets the criterion of "inventive step", since no solutions have been identified that have features that match its distinctive features, and the popularity of the distinctive features on the resulting technical result is not found.

The device is shown in FIG. 1 (side view). In FIG. 2 shows a graphical image obtained on the display of a measuring device when testing a weakened muscle.

The muscle testing device comprises a base 1, on which, using a hinge 2, a lever 4 is spring-loaded with a spring 3 and is able to adjust its length, made, for example, in the form of two tubes 5 and 6, inserted one into the other, fixed by a screw 7. At the end of the lever 4, a support 8 is installed with a mechanical force sensor 9, for example a strain gauge, and a button 10 for turning on the measuring device 11 for measuring the mechanical force and the reaction time of the tensed muscle to stretch (as a measuring device, you can use any recorder, mainly electronic, with a graphic image displayed on its display, for example, an IS-203.3 recorder meter.), a lever 4 braking unit 12, mounted between the lever 4 and the base 1, made, for example, in the form of a corrugated container 13 s hole 14, block 15 of additional mechanical force on the lever 4, made, for example, in the form of a rod 16 with grooves 17, spring-loaded with a spring 18 with a mechanism 19 for its launch, made, for example, in the form of a pusher 20, attached to the lever 4 and, spring-loaded th 21, the retainer 22 of the rod 16. There is a handle 23 for bringing the block 15 of additional mechanical effort in working stress condition.

The device is simple in design, does not require expensive materials for the manufacture, can easily be reproduced and propagated industrially, does not require complex technological production.

An example of using the device.

The device is placed on a horizontal surface or fixed in any known manner to a vertical surface.

Depending on the muscle strength of a person, the required length of the lever 4 is set. For this, the pressure of the screw 7 on the inner tube 6 is weakened, it is extended to the required length and its position is fixed with the screw 7. Then, the necessary mechanical force of the additional force block 15 is set. To do this, press on the edge of the latch 22, as a result of which it will come out of the groove 17 of the rod 16, and use the handle 23 to act on the rod 16 to compress the spring 18 to the necessary compression, release the pressure on the edge of the latch 22, and therefore it enters the selected groove 17 the rod 16, thereby fixing it.

When you press the support 8 by hand, button 10 turns on the measuring device 11 and transfers the pressure force to the mechanical force sensor 9, in connection with which it will send a signal to the input of the measuring device 11. With further pressure on the support 8, the lever 4 will begin to lower down, pressing on the block braking 12, as a result of which excess pressure is generated in the corrugated container, preventing the sharp lowering of the lever 4, the air will gradually leave the hole 14, slowing the movement of the lever 4. At the same time, the delay of the lever 4, until the unit is triggered 15 additional mechanical effort will be within 2.5 -5 seconds. After this time, the pusher 20 will press on the latch 22 of the rod 16, which will lead to its movement and exit from the groove 17, releasing the rod 16, which under the action of the compressed spring 18 presses on the lever 4. As a result, the tense muscle of a person will receive additional mechanical force stretching tensed muscle. At the same time, a graphical display of the measurement results appears on the display of the measuring device: the first horizontal line reflects the pressure force on the lever 4; the second horizontal line reflects the pressure force on the lever 4 by hand and the pressure force of the rod 16 (total force), the length of the second horizontal line reflects the reaction time of the muscle to its tensile force, and the third line reflects the decrease in mechanical effort (with a weakened muscle) in the form of omission of the end of the line down or increase in mechanical effort in the form of lifting the end of the line up (with normal muscle).

From the above example it is seen that the claimed technical result is achieved, when using the device simplifies the technology of muscle testing using the device with the simplification of its design.

Claims (1)

A device for testing muscles, including a mechanical force sensor with supports for pressure, a device for receiving, storing and displaying its signals on the display, characterized in that it contains a spring-loaded lever fixed to the base, with the ability to change its length, at the end of which there is a support with a sensor mechanical effort and the power button of the pressure meter and the reaction time of the tensed muscle to stretch it, the lever braking unit installed between the lever and the base, the additional load unit hands on the lever with the ability to adjust it.

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