RU2777942C2 - Device for control of efforts on muscle groups - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to a device for control of efforts of a force impact on patient’s muscle groups. The device contains a force sensor, which is a two-component sensor in the form of a rod strain-gage weigher. The first component of the sensor is made in the form of an elastic beam with stress concentrators, on which strain gages are glued. The second component of the sensor is made elastic in the form of a parallelogram, on elastic elements of which strain gages are glued. Strain gages are combined into load cells, input diagonals of which are connected to power sources, and output diagonals are connected through an amplifier to a communication device with a computer allowing normalization of strain gage signals and representation of them on a monitor screen as numbers. The device is equipped with replaceable nozzles for contact with a body surface and impact through them on muscles, and it is equipped with a handle for impact through it on patient’s muscles. The second component of the sensor is made with the possibility of fixation of a pushing force and pressure. The first component of the sensor is made with the possibility of fixation of a stretching force.

EFFECT: expansion of functional capabilities of a device for control of force impacts on muscle tissues.

1 cl, 1 dwg

Description

The invention relates to restorative medicine. When different parts of the body, different muscle groups, different parts of the spine are affected, the application of a different tensile force is required, the control of which will provide an increased efficiency of this procedure. Also, in the process of restoring postural dysfunctions, the doctor performs manual force impacts on the spine of various durations and pulse shapes. One of them is a force push with a front steepness of not more than 0.05 seconds and sufficient amplitude to excite cavitation waves in the segments of the spine (see patent No. 2663933). Such impacts are worked out on a simulator dummy according to patent No. 2663933 and are implemented in shock-pulse devices (see patent No. 2673630). The proposed device is aimed at measuring the above effects.

The closest device that provides control of force effects on muscle tissue is a passive load sensor according to patent No. 2670667.

The known device contains two bases between which a force sensor is installed. One base is applied to the patient's body, the doctor applies force to the second base. This sensor allows you to determine the resistance to passive movement in the joints, and this limits its use.

The purpose of the proposed device is to expand the functionality of devices aimed at controlling force effects on muscle tissue.

For this purpose, a multi-channel force sensor is used, made in the form of a tensometric elastic beam. Such sensors are known and used in the measurement of aerodynamic loads on model aircraft in wind tunnels.

A distinctive feature of the proposed device is the connection of the known sensor with the proposed nozzles connecting the sensor to the patient's body. Figure 1 shows the proposed device with nozzles.

Figure 1 shows nozzle 1 that implements a force effect on the muscles, known as pressure, and nozzle 2 implements tensile effects. The nozzles have a threaded connection to the sensor. The nozzle 1 is made of all-metal, and its surface in contact with the body surface is covered with an elastomer. The nozzle 2 is made of an elastomeric material in the form of a vacuum connector with the body surface. By pressing through the sensor on the nozzle 2, pressed against the patient's body, air is forced out of the nozzle and this ensures a tight connection of the sensor with the patient's body. The two-channel sensor contains an elastic beam 3 connected in series with an elastic parallelogram 4. Strain gauges 5 are glued on the elastic elements of the parallelogram and in places of stress concentration on the elastic beam. voltage amplifier to the communication device with the computer. This ensures that information is entered into the computer. The computer must be equipped with a software environment (for example, Lab-Vieu or Zet-Lab), which allows you to fix the load in standard units (KG or N) and display these readings on the monitor screen in real time.

The task of perturbing influences on the patient's body is performed by an experienced chiropractor. In this case, the sensor is equipped with a handle 6 placed in the palms of the medical staff. The handle is rigidly connected to two sensitive elements, an elastic beam 3 and an elastic parallelogram 4. The elastic parallelogram is a meter of pushing (or pressure) actions, and an elastic beam 3 measures tensile forces. Thus, a device for controlling efforts on muscle groups is proposed, containing a force sensor, characterized in that it uses a two-component sensor in the form of rod weight balances, the first component is made in the form of an elastic beam with stress concentrators on which strain gauges are glued, the second component is made in the form of an elastic parallelogram, on the elastic elements of which strain gauges are also glued, the strain gauges are combined into strain gauges, the input diagonals of which are connected to power sources, and the output diagonals are connected through an amplifier to a communication device with a computer, which allows normalizing the strain gauge signals and presenting them on the monitor screen as numbers of standard units, moreover the device is equipped with interchangeable nozzles through which the device is connected to the patient's muscles and equipped with a handle through which the medical staff acts on the patient's body, while the elastic parallelogram fixes pushing forces and pressure, and the elastic beam fixes tensile forces power.

The use of the proposed device in conjunction with a device for myometry, which also has data input to a computer, will allow an experienced doctor to control not only the force effects on the muscles of the patient's body, but also simultaneously control the result of this effect in the form of the degree of relaxation of muscle tissues. Thus, after processing the statistical data recorded in the computer, it becomes possible to develop optimal types of effects on muscle tissues with varying degrees of damage to the postural system of patients. In turn, this will expand the use of the proposed device without limiting its use by medical institutions. The reasonable price of the device will allow using it at home, participating in the treatment process of the patient's household.

Claims (1)

A device for controlling the forces exerted on the patient's muscle groups, comprising a force sensor, characterized in that the force sensor is a two-component sensor in the form of rod weight balances, the first sensor component being made in the form of an elastic beam with stress concentrators on which strain gauges are glued, the second sensor component is made elastic in the form of a parallelogram, on the elastic elements of which strain gauges are glued, the strain gauges are combined into strain gauges, the input diagonals of which are connected to power sources, and the output diagonals are connected through an amplifier to a communication device with a computer, which makes it possible to normalize the strain gauge signals and represent them on the monitor screen as numbers, moreover the device is equipped with interchangeable nozzles for contact with the body surface and impact on the muscles through them and is equipped with a handle for impact on the patient's muscles through it, while the second sensor component is configured to fix the pushing force and pressure, and the pen The output component of the sensor is made with the possibility of fixing the tensile force.

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