RU2806310C1 - Vibroacoustic massage bed - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention is related in particular to devices for physiotherapy, and can be used to improve the health of the human body, rehabilitation in various degenerative processes of the spine and joints, consequences of injuries, bruises, fractures. The vibroacoustic bed contains an acoustic plate in form of a flat bell, an upper frame, a frame containing four supports, and a vibrator. The upper frame is rigidly connected to the frame supports. The acoustic plate is located under the upper frame and is secured to the frame using shock-absorbing fasteners. The vibrator is configured to transmit vibrations to the geometric centre point of the lower surface of the acoustic plate.

EFFECT: one-time vibroacoustic effect on the human body as a whole, a wide range of effects on the somatic part of the body, its nervous system and mental state are achieved, increasing the degree of relaxation of the patient and the comfort of the vibroacoustic effect session, ensuring precise adjustment of the frequency and amplitude of vibrations.

11 cl, 1 ex, 1 dwg

Description

The invention relates to medicine, in particular to devices for physiotherapy, and can be used to improve the health of the human body, rehabilitation in various degenerative processes of the spine and joints, consequences of injuries, bruises, fractures.

Currently, devices for vibration therapy, based on the impact of mechanical vibrations locally: on a muscle or organ, part of the body, or on the entire body as a whole, have become widespread.

Vibrations penetrate deep into tissues and affect the mobility and adhesion of connective tissue, bone structure, and the movement of body fluids: blood, lymph, tissue fluid. Mechanical vibrations, penetrating deep into the tissues, affect areas of blood stagnation, helping to improve blood flow and lymph circulation. Vibrations in the range from 0.1 to 100 Hz affect the condition of the internal organs of the abdomen and chest cavity, having a normotonic effect on smooth muscles, relieving spasm and stagnation in them.

Sound therapy is a relatively young area of healing. The impact of certain frequencies on the state of the body and the central nervous system, and the mental state of a person is known. Acoustic waves affect the growth of pathogenic flora of fungi, bacteria, viruses, usually inhibiting and suppressing.

The effect of bell ringing on pathogenic ARVI and influenza viruses is known. Historically, the ringing of bells did not stop during epidemics of infectious diseases in the Middle Ages in Rus'. Acoustic waves of the infrasonic range, which coincide in frequency with the waves generated by the brain, have a similar effect, for example, the alpha frequency of 7.8-8 Hz has a mild hypnotic, relaxing effect. When the human brain enters a sound field with a frequency corresponding to the alpha rhythm (7.8 Hz), synchronization of all parts of the brain occurs into a single rhythm. This result has a positive effect on the nervous system, improving memory, thinking, attention, relieves vascular spasm, and has an anti-stress effect [Potapova A.A. Study of the influence of infrasonic waves on humans. Bulletin of Science No. 4 Vol.4; Ikhlov B.L. Infrasound, Microwaves and disease prevention. Modern problems of science and education.2017 No. 2; Gnezdilov A.V. Therapeutic use of bell ringing. Medical technologies. M., 1995, No. ½; Pylyaev M.I. Historical bells. Famous bells of Russia. St. Petersburg: Fatherland. 1980; Pukhnachev Yu. Mysteries of sounding metal. M. 1974; Suvorov G.A. Acoustic vibrations: noise, infrasound, ultrasound. Publication of the magazine "Occupational Safety and Social Insurance"; Frolov E.P. Sound therapy. Physiological, psycho-emotional, medical and social aspects of voice and words. M. 2014].

Existing devices for vibration therapy are presented in the form of vibration chairs and vibration couches. In some of these devices, along with vibration, other factors are used, in particular, heat, stretching of organs and tissues, and electromagnetic radiation.

It is known from SU 1114419 a vibration therapy chair containing a base, a seat with a backrest, a support bracket, elastic elements connecting the seat with the support bracket and located in the same plane at equal angular intervals, and a vibrator located under the seat.

However, in this device, due to the patient’s sitting position, compression of the vessels in the groin area occurs, which creates circulatory resistance and additional stress on the heart and vascular system. It is more difficult for a patient in a sitting position to achieve relaxation. The impact of vibration occurs mainly on the pelvic organs and the lower part of the body. Due to the impact of vibration in a sitting position mainly on the lower torso and pelvic organs, the patient experiences a load on the heart and blood vessels, which requires careful attention to the patient’s condition. A sitting position contributes to compression of the intervertebral discs and nerve roots, reducing the effectiveness of vibration. There is no sound therapeutic effect on the human body.

It is known from RU 135257 a multifunctional vibromassage device consisting of a mechanical vibrator with an electric drive, a bench located inclined relative to the horizontal surface of the earth and structurally connected to the vibrator, a short support made of elastic material, and a long support giving it a certain angle of inclination to the horizontal surface .

However, this device does not allow precise adjustment of the frequency and amplitude of vibrations (with an accuracy of thousandths of Hz). In this model, the panel on which the person is located can dampen some of the vibrations, because the vibration generation mechanism is not associated with the effect of acoustic resonance, and therefore the natural resonant frequency of the panel may not coincide with the generated frequency of the vibrator, as a result of which the effectiveness of the vibration effect will be reduced. When the human body is directly placed on the vibrating panel, the vibrations have a rougher effect than with the non-contact method, which can be felt physically by the patient as an unpleasant sensation.

It is known from RU 2687006 a device for vibroacoustic massage, in which a “singing bowl” acts as a source of acoustic vibrations for the correction of anxiety and insomnia disorders. The “singing bowl” is made of “bell bronze” alloy metal and has the shape of a vessel with an internal diameter of 250 mm, a wall height of 110 mm and an external bottom diameter of 130 mm. It is placed directly on the body of the person being massaged, making contact directly with the naked body of the person being massaged or through the fabric. The “singing bowl” is held with one hand, in the second hand there is a beater instrument, which is an object whose handle is made of wood with a length of 260 mm and a diameter of 18 mm, and a percussion part made of rubber in the shape of a cylinder with a diameter of 55 mm and a height of 35 mm. Vibration is extracted from the “singing bowl” by striking the rubber part of the beater against the upper edge of the bowl with a series of 9 blows with a rhythm characterized by mandatory equal pauses of 1 second between each of the 9 blows. After the end of vibration, the “singing bowl” moves to the next position according to the direction of the massage movements, and the effect of sound waves occurs either on the entire body of the person being massaged, or locally.

However, such a device does not provide a simultaneous effect on the entire body and the ability to precisely regulate the amplitude of vibrations, which reduces the effectiveness of the effect. When installing the bowl directly on the human body, the vibration effect is sharply reduced due to vibration damping. When using the device, it is impossible to obtain vibrations of the low-frequency spectrum, there is no binaural effect, which also reduces the effectiveness of this therapy. This device has a limited range of effects, because has an effect primarily on the mental sphere: anxiety and insomnia disorders.

The closest analogue of the claimed invention is the vibrating bed from patent RU 2215514, consisting of a rigid frame, a panel connected to the frame at the top and bottom, springs and a mechanical vibration generator. The mechanical vibration generator is represented by a 12-volt electric motor, on the shaft of which there is a pulley with an eccentric load. Vibrations generated by the eccentric load are transmitted to the panel and the entire body of the patient, located horizontally on the panel. It is possible to adjust the amplitude from 0 to 10 mm and frequency from 0 to 200 Hz.

However, the use of this device provides only vibration effects and does not allow stimulation of two or more types of frequencies simultaneously. The patient is located directly on the panel, so the vibrations are perceived subjectively by the patient as a rather rough, unpleasant effect. This device uses a motor as a source of vibration, the pulley of which contains an eccentric connected to the panel. Thus, there is no mechanism of acoustic resonance to generate vibrations. At the same time, the mechanism for generating oscillations is contact, subjectively perceived as rougher, which does not allow achieving a high level of relaxation for the patient. The device does not provide a higher vibration amplitude (more than 10 mm) necessary for intense impact on human musculoskeletal tissue.

The technical problem of the claimed invention is to overcome the disadvantages of the closest analogue.

The technical result of the invention is a one-time vibroacoustic effect on the human body as a whole, a wide range of effects on the somatic part of the body, its nervous system and mental state, increasing the degree of relaxation of the patient and the comfort of the vibroacoustic effect session, ensuring precise adjustment of the frequency and amplitude of vibrations, the possibility of high amplitude of vibrations , necessary for intensive effects on human musculoskeletal tissue.

The vibroacoustic bed is intended for correction of diseases of the cardiovascular system (pathological conditions associated with impaired venous return, increased blood clotting), abdominal and thoracic organs (chronic diseases of internal organs beyond the acute stage), as well as harmonization and normalization of the psycho-emotional state of people during stress, depressive disorders, sleep disorders.

A one-time vibroacoustic effect is provided using an acoustic plate with strictly specified geometric parameters, the presence of a frequency generator, a mixing device and a frequency amplifier.

The patient is positioned on the upper frame and during the procedure is in the sound and vibration field, while the patient’s body is not in direct contact with the acoustic plate, so the vibroacoustic effect is subjectively felt as pleasant and does not cause bodily discomfort.

Acoustic resonance is used to start and generate vibrations with an acoustic plate, due to which the level of additional noise of the vibrator is minimal, which contributes to better relaxation of the patient and a more comfortable session of vibroacoustic influence.

Due to the presence of a potentiometer, a vibrator of a specific design, consisting of a magnetic system and an electromagnetic coil with a core that allows more precise adjustment of the frequency and amplitude of vibrations, the claimed device provides a higher amplitude of vibrations (more than 10 mm), necessary for an intensive effect on human musculoskeletal tissue .

The essence of the claimed invention is that the vibroacoustic bed contains an acoustic plate in the form of a flat bell, an upper frame, a frame containing four supports, and a vibrator; the upper frame is rigidly connected to the frame supports, the acoustic plate is located under the upper frame and secured to the frame using shock-absorbing fasteners, the vibrator is configured to transmit vibrations to the geometric center point of the lower surface of the acoustic plate.

The claimed invention ensures the improvement of a person’s health and harmonization of his psycho-emotional state, in particular the correction of the musculoskeletal system (joints, spinal column, muscular system), the improvement of internal organs (with adhesions, chronic diseases of the abdominal and thoracic cavity), blood vessels and the blood system , and harmonization of the state of the brain and nervous system.

The complex effect of a vibroacoustic bed is realized due to the combined effect of mechanical vibrations and acoustic waves of a certain frequency on the entire human body. This impact is ensured by the presence of an acoustic plate in the form of a flat bell, which has a unique geometric shape. The specified aspect ratio of the plate (length A and width B) allows you to obtain strictly defined sound vibrations with a given frequency (from one sound to five). In this case, the main frequency of the plate (first tone) has an effect on the musculoskeletal, circulatory systems and internal organs, and subsequent frequencies (second, third, fourth and fifth, for example, octave, undertone) have a beneficial effect on the brain and nervous system, I contribute to the harmonization of brain rhythms, reducing vascular tension, providing anti-stress, antidepressant effects and normalizing sleep. A binaural effect may occur between the first and subsequent sound of a plate with a given frequency, for example 7.8 Hz, corresponding to the alpha rhythm of the brain. Depending on the geometry of the plate, five varieties are possible:

1) A/B from 1.3 to 1.45 - 1st and 2nd sounds in an octave ratio of 1 to 2.

2) A/B from 1.63 to 1.8 - 1st and 2nd sounds in unison.

3) A/B from 1.9 to 2.2 - 1st and 3rd sounds in a ratio of 1 to 4.

4) A/B from 3.3 to 3.5 - 1st and 2nd sounds in a ratio of 1 to 2.

5) A/B from 3.6 to 4.5 - 1st sound undertone (fundamental tone).

The numbering of sounds is as follows: 1st sound is the lowest, 2nd, 3rd are the next, respectively, in the sound spectrum.

Thus, the main difference between this invention and existing analogues is precisely the combined effect of vibration and sound frequencies and the associated complex effect on the human body and nervous system.

The second significant feature that distinguishes the claimed invention from its analogues is the presence of a flat bell (acoustic plate), which is a source of vibrations and sound waves.

The third feature of the claimed invention is the effect of frequencies initially specified by the geometry of the slab. Thus, during the procedures, the frequency with which the effect is carried out does not change, since it is related to the original geometric dimensions of the slab.

In the claimed invention it is possible to change the vibration amplitude using a potentiometer from 0.1 mm to 15 mm. In this regard, it is possible to provide high-intensity vibration effects on the patient if there are appropriate indications, or a more gentle mode of low-amplitude vibration effects. The vibration mode is selected individually depending on the patient’s condition, pathological process, and age. This feature is also distinctive from analogues and the prototype.

The next distinguishing feature is the mechanism of acoustic resonance, with the help of which vibrations are generated by the acoustic plate. This feature is realized due to the design feature of the claimed invention: frequencies strictly specified for a given design of the acoustic plate are generated by a generator (or frequency generators in the case when the acoustic plate is tuned to several sounds), and then transmitted to a frequency amplifier and a vibrator, which is in contact at a strictly defined point with acoustic plate. An option is possible when several signals corresponding to the first and subsequent sounds of the acoustic plate are generated on several generators, then enter the mixing device and from it are transmitted to the frequency amplifier and vibrator. Acoustic resonance occurs due to vibration of the vibrator core with frequencies strictly corresponding to the sound frequencies of the acoustic plate (frequencies must coincide with an accuracy of ten thousandths after the decimal point). In this case, the phenomenon of perfect resonance occurs, and the acoustic plate begins to vibrate and produce corresponding sounds.

The patient is not in direct contact with the surface of the acoustic plate, positioned horizontally on the upper frame, and is in a vibration-sound field. Due to the lack of direct contact with the acoustic plate, vibrations have a softer (subjectively perceived by the patient) effect.

The claimed invention is illustrated by the figure, in which positions 1-13 show:

1 - acoustic plate;

2 - upper frame;

3 - frame;

4 - support;

5 - screed;

6 - shock-absorbing mount;

7 - adjusting leg;

8 - bracket;

9 - vibrator;

10 - vibrator tip;

11 - generator;

12 - mixing device;

13 - amplifier;

14 - potentiometer.

The vibroacoustic bed consists of an acoustic plate 1, movably located on a rigid metal frame 3, the mobility of which is achieved thanks to shock-absorbing fasteners 6, for example, in the form of shock-absorbing springs with fluoroplastic washers with a cylindrical core. Shock-absorbed fastenings 6 are located at the points of rest (neutrality) of the acoustic plate 1. The frame 3 of the vibroacoustic bed consists of four supports 4, interconnected in the lower third by transverse and longitudinal ties 5. The supports 4 of the frame 3 have adjustable legs 7. The supports 4 of the frame 3 in The upper third has brackets 8 for fastening the upper frame 2. Below, relative to the acoustic plate 1, on the longitudinal ties of the frame there is a vibrator 9 containing a core with a tip 10, directly in contact with the acoustic plate 1 at the geometric center point of the lower surface of the acoustic plate 1. Vibrator 9 receives the signal from the generator 11, the mixing device 12, the amplifier 13 with a potentiometer 14. The upper frame 2 is covered with a soft bedding and equipped with a head cushion (not shown in the figure).

The source of sound vibrations is a horizontally located acoustic plate 1, which is a flat bell with a given geometric shape, making it possible to generate several vibrations at once.

The acoustic plate 1 can be made of brass, bronze, aluminum alloys, acoustic cast iron and acoustic granite.

Depending on the geometry of the acoustic plate 1, five varieties are possible:

1) A/B from 1.3 to 1.45 - 1st and 2nd sounds in an octave ratio of 1 to 2.

2) A/B from 1.63 to 1.8 - 1st and 2nd sounds in unison.

3) A/B from 1.9 to 2.2 - 1st and 3rd sounds in a ratio of 1 to 4.

4) A/B from 3.3 to 3.5 - 1st and 2nd sounds in a ratio of 1 to 2.

5) A/B from 3.6 to 4.5 - 1st sound undertone (fundamental tone).

Examples of dimensions in mm of acoustic slab 1 depending on the type:

1) A = 2000, B = 1538.4; A = 2000, B = 1428.5; A = 2000, B = 1379.3;

2) A = 1900, B = 1165.6; A = 1900, B = 1117.6; A = 1900, B = 1055.5;

3) A = 1900, B = 1000; A = 1900, B = 950; A = 1900, B = 863.6;

4) A = 1900, B = 575.7; A = 1900, B = 558.8; A = 1900, B = 542.8;

5) A = 1900, B = 527.7; A = 1900, B = 475; A = 1900, B = 422.2.

The numbering of sounds is as follows: 1st sound is the lowest, 2nd, 3rd are the next, respectively, in the sound spectrum.

The acoustic plate 1 is located movably on a rigid metal frame 3 with the help of shock-absorbing fasteners 6 (springs, permanent magnets, suspension on a cable) at the points of rest (neutrality) of the acoustic plate 1, in which there is no sound and vibration.

The upper frame 2 must have acoustic transparency, that is, it must transmit vibrations and sound waves from the acoustic plate 1. The upper frame 2 is attached using fastening brackets 8 located on supports 4 to the metal frame 3.

In the case of using 6 springs as shock-absorbing fasteners, at the point of contact with the acoustic plate 1, the springs have fluoroplastic washers with a metal core, they are located in the holes of the resting points (neutrality) performing the function of a shock absorber and insulator, protecting the metal frame 3 from vibrations of the acoustic plate 1.

The vibrator 9 is located below the acoustic plate 1 on a metal frame 3 and is rigidly connected to the latter. Vibrator 9 is a device in which electromagnetic waves are converted into sound vibrations. Vibrator 9 consists of a magnetic system in a cylindrical aluminum housing, a coil with a certain number of turns with an aluminum alloy core. The coil is held in the gap of the magnetic system using two centering washers with a specific profile, made of cotton fabric impregnated with adhesive. The coil core on one side has a rubber tip of 10 cone shape. The number of turns of the coil is strictly related to the diameter of the magnetic system and is directly proportional to the power of this vibrator 9, which must be taken into account when calculating the dimensions of the acoustic plate 1. The tip 10 of the vibrator 9 is installed in a certain place of the acoustic plate 1 - strictly in the center. Vibrator 9 receives the required signal from low-frequency amplifier 13.

Frequency generator 11 allows you to obtain the required signal frequency with an accuracy of thousandths and a signal power of at least 1.5 volts. The signal of the required frequency and power is transmitted to the low-frequency amplifier 13. The amplifier 13 can be used in digital or analogue versions. The amplifier 13 must have a potentiometer 14 to adjust the power of the output signal. The power of the amplifier is related to the size and weight of the acoustic plate.

Another implementation option in this scheme is possible. If it is necessary to obtain a signal from several frequencies, it is necessary to have several generators 11 (two or more depending on the number of frequencies supplied to the acoustic plate 1) and a mixing device 12. Signals from the generators 11 are supplied to the mixing device 12, and then the resulting signal is transmitted to the amplifier low frequencies 13 and vibrator 9. In this case, it is possible to simultaneously extract from the acoustic plate 1 several frequencies to which the acoustic plate 1 is tuned, and associated with the geometric values of the ratio of the length and width of the acoustic plate 1.

The device works as follows.

The basic principle of generating sound vibrations of the acoustic plate 1, used in the design of a vibroacoustic bed, is the principle of acoustic resonance. The required resonant frequency is set accurate to thousandths on the frequency generator 11, fed to the low-frequency amplifier 13 and then to the vibrator 9. If there are several frequencies, then the signals from the generators 11 are first fed to the mixing device 12, and then to the low-frequency amplifier 13. The core of the vibrator 9 oscillates with a frequency transmitted from the low-frequency amplifier 13. The tip 10 of the vibrator 9, in contact with the acoustic plate 1 and performing oscillatory movements with a frequency corresponding to the natural frequency of the acoustic plate 1, causes the phenomenon of acoustic resonance, and, as a result, , the acoustic plate 1 vibrates, generating vibrations and sound waves. In this case, vibrations occur when the acoustic plate 1 vibrates in the low-frequency range. The amplitude of vibrations of the acoustic plate 1 in operating condition can vary from 0.1 mm to 15 mm depending on the power of the signals controlled by potentiometer 14 on the low-frequency amplifier 13. In this way, the required amplitude of vibrations of the acoustic plate 1 can be set depending on the condition of the patient (age , accompanying pathologies, the purpose of this impact). Impact on bones, muscles, joints requires a higher vibration amplitude.

On the upper frame 2 there is a covering made of multilayer cotton fabric and a roller for the patient's head.

The patient lies horizontally in a comfortable position; there may be a cushion under the head. It is possible to use disposable sheets.

At the beginning, when starting the device, the potentiometer 14 is set to the middle position, and after a few minutes, when the acoustic plate 1 reaches resonance, and as a result, oscillations are generated, the voltage with the potentiometer 14 can be reduced. Further adjustment of the oscillation amplitude is carried out until the required oscillation amplitude is achieved and can be increased or decreased.

The average duration of a vibroacoustic treatment session is 30-40 minutes; 10 sessions are required to achieve a lasting healing effect. During the session, the patient, as a rule, experiences slight drowsiness; sensations of heat, fullness, and tingling may occur in the body, which usually disappear during the sessions.

The main feature that distinguishes a vibroacoustic bed from other vibration devices is the combined vibroacoustic effect. With the help of a vibroacoustic bed, a vibroacoustic effect is achieved, that is, the simultaneous effect of vibration and sound vibrations on the body. Vibration vibrations primarily affect bones, muscles, joints, internal organs, the blood system and blood vessels. Sound vibrations primarily affect the brain and the psycho-emotional state of a person, providing a relaxing effect, harmonizing and balancing the state of the nervous system.

The phenomenon of acoustic resonance in an oscillatory system consisting of an acoustic plate and a vibrator is another distinctive feature that distinguishes a vibroacoustic bed from its closest analogue and other vibration impact devices.

The patient, who is located on the upper frame, is in the sound field, but does not come into contact with the surface of the acoustic plate. As a result, the impact of vibrations is softer than if the vibration source came into direct contact with human skin. In this way, a softer relaxing effect is achieved and is subjectively perceived by the patient as a pleasant effect. This feature is another difference between a vibroacoustic bed and its closest analogue and other vibration devices.

Example of a concrete implementation

In a particular case, the vibrating bed can be designed as follows.

The metal frame consists of four supports, which are cylinders with a height of 600 mm and a diameter of 70 mm, which in their lower third are connected to each other by two longitudinal and two transverse ties made of a profile pipe, with a square side of 40 mm and a length of 1000 mm and 450 mm respectively. At the bottom of the support there is an adjustable leg - a support plate on an M12 thread, connected to the support and allowing the frame to be adjusted in height. In the upper third of the support there are mounting brackets for the upper frame. The mounting brackets are connected to the supports with M12 bolted connections. There is one mounting bracket on each support.

The upper frame is a frame made of a metal equal-flange angle with a 40 mm shelf with a stretched metal mesh cell of 20 by 20 mm, with a wire diameter of 6 mm. The frame can be made in other ways, for example from wooden blocks sewn together in a certain order.

The upper frame is located above the acoustic plate with a gap of at least 30 mm.

Spring shock absorbers are springs with a diameter of 40 mm and a length of at least 100 mm with a wire diameter of at least 6 mm.

Claims (13)

1. A vibroacoustic bed, characterized in that it contains an acoustic plate in the form of a flat bell, an upper frame, a frame containing four supports, and a vibrator; the upper frame is rigidly connected to the frame supports, the acoustic plate is located under the upper frame and secured to the frame using shock-absorbing fasteners, the vibrator is configured to transmit vibrations to the geometric center point of the lower surface of the acoustic plate. 2. The bed according to claim 1, characterized in that the ratio of length to width acoustic slab ranges from 1.3 to 1.45. 3. The bed according to claim 1, characterized in that the ratio of length to width acoustic slab ranges from 1.63 to 1.8. 4. The bed according to claim 1, characterized in that the ratio of the length to the width of the acoustic slab is in the range from 1.9 to 2.2. 5. The bed according to claim 1, characterized in that the ratio of the length to the width of the acoustic slab is in the range from 3.3 to 3.5. 6. The bed according to claim 1, characterized in that the ratio of the length to the width of the acoustic slab is in the range from 3.6 to 4.5. 7. The bed according to claim 1, characterized in that the vibrator is connected to a frequency generator and an amplifier with a potentiometer. 8. The bed according to claim 7, characterized in that it contains an additional generator and a mixing device. 9. The bed according to claim 1, characterized in that the frame support in the lower part contains an adjustable leg. 10. The bed according to claim 1, characterized in that the frame supports are connected to each other by ties. 11. The bed according to claim 1, characterized in that the upper frame is fixed to the frame using brackets.