RU2653811C1 - Device for developing the mobility of the shoulder joint - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medicine. Device for developing the mobility of the shoulder joint comprises a base, equipped with rollers for moving, a patient's seat, placed on the base, a height-adjusting vertical stand, electronic control unit attached to the base, a control panel electrically connected to the electronic control unit, the first reversible motor-reducer electrically connected to the corresponding output of the electronic control unit, the first and the second rods, the second reversible motor-reducer, electrically connected to the corresponding output of the electronic control unit, the first and the second rotation angle sensor whose rotors are rigidly connected to the output shafts of the first and the second reversible motor-reducers, respectively, and their electrical outputs are connected to the corresponding inputs of the electronic control unit, two position regulators equipped with each corner scale with a lock and attached from different sides to the patient's seat, a healthy arm placement unit mounted on one of the position regulators and consisting of an armrest with a fixing pin and its lock, node placement of the developed hand, formed by the third rod, in the middle part of which there is a tray, and at the ends of the rod are placed respectively elbow stop and handle, L-shaped lever, one end of which is mechanically connected to the second motor-reducer, and its other end is connected to the third rod. One end of the first rod is kinematically connected to the output of the first reversible motor-reducer, and the other end of it is connected through the rod to one end of the second rod, at the other end of which is located the second reversible motor-reducer. On the other position controller there is a vertical stand, on the upper end of which is placed the first reversible motor-reducer. First and the third rods are adjustable in length.

EFFECT: invention provides increased automation of the procedure for treating the shoulder joint, as well as expanding the therapeutic possibilities of the device by automating the procedure for restoring the mobility of the shoulder joint in two planes.

1 cl, 7 dwg

Description

The invention relates to medical equipment, and more specifically to the field of mechanotherapy of the upper extremities, and can be used in the development of shoulder joints during their rehabilitation after injuries and in eliminating the consequences of surgical intervention.

Establishment of a prior art medical equipment.

A joint is a movable joint of two or more bones of a skeleton.

The forearm is a part of the human upper limb bounded by the elbow and wrist joints.

The shoulder joint is a movable connection of the humerus with the scapula, connecting the free upper limb with the belt of the upper limb. It allows you to perform the following movements:

- flexion and extension around the front axis;

- abduction and reduction around the sagittal axis;

- supination and pronation (movement outward and inward) around a vertical axis;

- circular movements.

A device for developing the mobility of the shoulder joint [1], consisting of tissue braces and elastic cords, moreover, two tissue braces for the forearm and shoulder are braided at the level of the elbow joint, while the distal section of the braces for the forearm and the proximal clangs for the shoulder have hooks attached to an expander or elastic cord thrown over a block mounted on a crossbeam or ceiling.

In such a device, the object of the invention is to reduce pain when performing exercises to restore the mobility of the shoulder joint. It is solved in such a way that the patient, being initially in the “sitting” position, performs physical exercises along the axes of the joint along the short lever and incomplete range of motion, then goes into the “standing” position and performs physical exercises along the long lever, increasing the amplitude of motion in shoulder joint.

The disadvantage of this device is the lack of automation in the implementation of mobility recovery processes.

Also known is a device for developing mobility of the shoulder joint [2], containing:

- base and patient seat,

- first and second vertical racks,

- horizontal and sagittal rods,

- rotation mechanism

- forearm retainer,

- a bed for the shoulder, forearm and hand,

- a system of blocks with cargo,

- vertical racks on which sagittal rods are fixed with a rotation mechanism mounted on them with a bed for the shoulder, forearm and hand attached to it, to which the load is fixed through a system of blocks,

- vertical racks are connected by means of a horizontal bar with the forearm retainer located on it.

This device is also characterized by low automation of the shoulder joint development process.

Also known is a device for developing mobility of the shoulder joint [3], containing:

- the base and patient seat, rigidly mounted on the base,

- a vertical rack equipped with a position lock and also mounted on the base,

- a helm mounted on the free end of the vertical strut and having the ability to rotate in a horizontal plane,

- and an angular scale, also mounted on a vertical stand, and the vertical stand is made telescopic.

The disadvantage of this device is the lack of automation of the processes of restoration of mobility of the shoulder joint.

Also known is a device for developing mobility of the shoulder joint [4], containing:

- base and patient seat,

- a vertical rack mounted on the base with the possibility of rotation around the vertical axis of the seat,

- an indicator of the angle of rotation connected to a vertical stand flexible connection,

- and a U-shaped rod pivotally mounted on a vertical rack with the possibility of rotation.

This device is also characterized by low automation of the shoulder joint development process.

A device for developing mobility of the shoulder joint [5], containing:

- a rigid belt (hip emphasis), performing the function of the base,

- two half-bracelets (supports or bed) for the shoulder and forearm, equipped with plates,

- ball joints mounted on these plates,

- struts in the form of telescopic tubes located perpendicular to each other.

The objective of this device is to provide rigid fixation and dynamic distraction simultaneously in the shoulder and elbow joints.

To prevent and restore mobility of the shoulder joint, the maximum possible lead angle is attached to the upper limb. When conducting physical therapy, the location of the rod inside the tube provides abduction-reduction, and the spherical connection - flexion-extension in the shoulder joint.

The main disadvantage of this device is the lack of automation of the procedure for restoring the mobility of the shoulder joint, which complicates its implementation.

Also known is a device for developing mobility of the shoulder joint [6], containing:

- the base (hip emphasis) with straps for tightening on the patient’s body,

- a spherical bearing rigidly mounted on the base,

- the first and second L-shaped rods with spherical heads in the lower part, with one shoulder of the second L-shaped rod equipped with a bed for the forearm, and the other with a handle.

Before performing the procedures, the device is fixed on the patient’s body. The forearm of the developed hand is placed in the specified bed, and the healthy hand is placed on the handle.

The patient with a healthy hand, performing flexion-extension, reduction-abduction-rotation, brings the developed shoulder joint into a similar movement by transmitting movement to it through a bar with a handle.

Thus, the device allows for the active independent development of the shoulder joint. The disadvantage of this device is the lack of automation of the procedure for restoring joint mobility, which complicates its implementation.

Also known is a device for developing mobility of the shoulder joint [7], containing:

- means of attachment to the shoulder and forearm, pivotally connected to each other,

- wherein each fastening means is a parallel mounted inner and outer frames rigidly connected to each other by cuffs, while the device is equipped with a folding-extension mechanism made in the form of levers pivotally connected to the drive and at an angle with each other, each with its free end movably connected to the outer frame.

This device is also characterized by low automation of the shoulder joint development process.

There is also known a device for developing mobility of the shoulder joint by mechanotherapy [8], containing:

- two opening sleeves for the proximal segments of the left and right upper limbs of a person,

- A U-shaped base, with a cutout for the head in the center front and top, with an electronic unit mounted on the front of the base that controls reversible electric drives,

- in this case, each of them is equipped with a sensor for the angle of rotation of the output shaft, which provides the electronic unit with information on the operation of electric drives, two of which are designed for rotation of the left and right shoulder joints (inside / out),

- two other electric drives are intended for abduction / reduction of the left and right shoulder joints.

Such a device is characterized by the complexity of the design, the need for a long reconfiguration for patients with different geometric parameters.

Characterization and criticism of the prototype.

The closest invention to the proposed according to the greatest number of similar features, technical nature, circuit design and achieved medical and technical result is a device for developing mobility of the shoulder joint described in [9].

Such a device, selected as a prototype, contains:

- the base, made in the form of a tripod, equipped with rollers for movement;

- a patient seat mounted on the floor surface (not shown);

- made vertical height-adjustable upright, mounted on the base and equipped with a clutch with a clamp;

- the first pipe placed inside the coupling, with one end of the pipe provided with a handle, and the other end with a fork;

- a platform equipped with an angular scale and pivotally connected to a fork;

- a second pipe attached from below to the platform, inside of which a shaft is installed;

- a reversible gear motor located on the platform and electrically connected to the corresponding output of the electronic control unit, while the mechanical output of the gear motor is kinematically connected to the specified shaft;

- an electronic control unit attached to a vertical rack;

- a control panel electrically connected to the electronic control unit;

- and the first and second rods equipped with fasteners for fixing the developed arm, while the first rod is rigidly connected to the second pipe, and the second rod is movably connected to the shaft through the splines.

This device allows you to automate the procedure for restoring joint mobility in only one plane, which reduces its therapeutic capabilities.

The technical result and its achievement

The invention is aimed at achieving such medical and technical results as:

- expanding the therapeutic capabilities of the device by automating the procedure for restoring the mobility of the shoulder joint in two planes;

- improving the automation of the treatment of the shoulder joint and thereby facilitating the work of the health worker.

The achievement of such results is ensured by the fact that the known device for developing mobility of the shoulder joint, containing:

- a base equipped with rollers for movement;

- a patient seat located on the base;

- a vertical stand made of adjustable height;

- an electronic control unit attached to the base;

- a control panel electrically connected to the electronic control unit;

- the first reversible gear motor electrically connected to the corresponding output of the electronic control unit;

- and the first and second rods; also contains:

- a second reversible gear motor electrically connected to the corresponding output of the electronic control unit;

- the first and second angle sensors, the rotors of which are rigidly connected to the output shafts of the first and second reversible gear motors, respectively, and their electrical outputs are connected to the corresponding inputs of the electronic control unit;

- two position adjusters, each equipped with an angular scale with a lock and attached from different sides to the patient's seat;

- a healthy hand placement unit mounted on one of the position controllers and consisting of an armrest with a mounting pin and its lock;

- a placement unit of a developed arm formed by a third rod, in the middle of which there is a tray, and at the ends of this rod an elbow rest and a handle are placed, respectively;

- and the L-shaped lever, one end of which is mechanically connected to the second gear motor, and the other end is connected to the third rod;

- one end of the first rod is kinematically connected with the output of the first reversible gear motor, and its other end is connected through a hinge to one end of the second rod, at the other end of which the second reversible gear motor is located;

- at the same time, a vertical rack is installed on the other position controller, at the upper end of which the first reversible gear motor is located;

- and the first and third rods are made adjustable in length.

Besides:

- an electric vibrator is attached to the elbow stop outside, made in the form of a DC motor electrically connected to the electronic control unit, on whose shaft an eccentric is mounted;

- the first and second angle sensors are each made in the form of potentiometric (variable) resistors;

- the electronic control unit has a connector for a Flash card and is equipped with an audible warning device;

- the control panel has a socket attached to the end of the armrest;

- and the hinge between the first and second rods is also provided with an angular scale.

The applicant has not found a device in which the specified medical-technical result is achieved by a similar set of essential features. Moreover, the analysis of the prior art by the applicant, including a search by patent and other scientific, technical and medical-technical sources of information and identification of sources containing information about analogues of the invention, made it possible to establish that there are no analogues characterized by features identical to all the essential features of the invention, and the selection from the list of analogues of the prototype [9] provided the identification of a combination of significant in relation to the technical result of the distinguishing features of the claimed invention.

In other words, according to the information available to the applicant, there are no analogues that are characterized by sets of features identical to all the features of the claimed device.

These signs are significant and interrelated with the formation of a stable set of essential features sufficient to obtain the desired medical and technical result.

The applicant has also verified the compliance of the specified set of essential features of the device with three conditions (criteria) of patentability.

The compliance of the claimed device to the condition of patentability "novelty"

To assess the novelty of the technical solution, the above set of essential features of the claimed device is analyzed. For this, those features are identified that coincide with the features of the prototype, namely, the device contains:

- a base equipped with rollers for movement;

- a patient seat located on the base;

- a vertical stand made of adjustable height;

- an electronic control unit attached to the base;

- a control panel electrically connected to the electronic control unit;

- the first reversible gear motor electrically connected to the corresponding output of the electronic control unit;

- and the first and second rods.

If you select those signs that distinguish the claimed device from the prototype [9], the claimed device contains:

- a second reversible gear motor electrically connected to the corresponding output of the electronic control unit;

- the first and second angle sensors, the rotors of which are rigidly connected to the output shafts of the first and second reversible gear motors, respectively, and their electrical outputs are connected to the corresponding inputs of the electronic control unit;

- two position adjusters, each equipped with an angular scale with a lock and attached from different sides to the patient's seat;

- a healthy hand placement unit mounted on one of the position controllers and consisting of an armrest with a mounting pin and its lock;

- a site for placement of the developed arm, formed by the third bar, in the middle of which there is a tray, and at its ends are placed an elbow stop and a handle;

- and the L-shaped lever, one end of which is mechanically connected to the second gear motor, and the other end is connected to the third rod;

- one end of the first rod is kinematically connected with the mechanical output of the first reversible gear motor, and its other end is connected through a hinge to one end of the second rod, at the other end of which the second reversible gear motor is located;

- at the same time, a vertical rack is installed on the other position controller, at the upper end of which the first reversible gear motor is located;

- and the first and third rods are made adjustable in length.

Besides:

- an electric vibrator is attached to the elbow stop outside, made in the form of a DC motor electrically connected to the electronic control unit, on whose shaft an eccentric is mounted;

- the first and second angle sensors are each made in the form of potentiometric (variable) resistors;

- the electronic control unit has a connector for a Flash card and is equipped with an audible warning device;

- the control panel has a socket attached to the end of the armrest;

- and the hinge between the first and second rods is also provided with an angular scale.

The presence of these features ensures compliance with the totality of essential features of the patentability condition of "novelty." However, no devices were found in which the medical and technical result was achieved by a similar set of essential features.

According to the information available to the applicant, the set of essential features characterizing the essence of the claimed invention is unknown, which allows us to conclude that its patentability “novelty” condition is in accordance with the current legislation.

The compliance of the claimed device with the condition of patentability "inventive step".

To verify compliance with the requirements of inventive step, the applicant conducted an additional search and analysis of solutions in order to identify signs that match the distinctive features of the selected prototype, the results of which showed that the claimed object does not explicitly follow from the prior art defined by the applicant.

In other words, a comparison of the claimed device not only with the prototype, but also with other technical solutions in this and related fields of medical technology showed that the latter do not contain features similar to those distinguishing the claimed device from the prototype.

Therefore, the claimed object meets the condition of patentability "inventive step" under applicable law.

It should also be noted that between the set of essential features (distinguishing features) of the present invention and the achieved medical and technical result, there is a causal relationship, since the distinctive features were not identified in any of the analogues, and the achieved result is obtained only when all without exception, known and distinctive features.

Thus, these signs are significant and interrelated with the formation of a stable set of essential features sufficient to obtain the desired medical and technical result.

Disclosure of the invention. An example of a specific implementation. Drawings explaining the design, principle of operation and operation of the device.

Blueprints:

- in FIG. 1 shows a general view of the device;

- in FIG. 2 and 3 are structural diagrams of a shaper of mechanical vibrations of the device (from various angles);

- in FIG. 4 shows the main mechanical and electrical connections of the device;

- FIG. 5 and 6 explain the adjustment of the main components of the device;

- in FIG. 7 shows the trajectory of the movement of a certain point "C" on the handle during operation of the device.

Description of the design of the device (in statics).

A device for developing mobility of the shoulder joint contains (Fig. 1):

- base 1, equipped with rollers 2 for moving it,

- patient seat 3, mounted on the base 1,

- vertical rack 4, made adjustable in height,

- an electronic control unit 5 attached to the base 1,

- control panel 6, electrically connected to the control unit 5,

- the first 7 and second 8 reversible gear motors electrically connected to the respective outputs of the electronic control unit 5,

- the first 9 and second 10 angle sensors, the rotors of which are rigidly connected to the output shafts of the first 7 and second 8 gear motors, respectively (Fig. 4), and their electrical outputs are connected to the corresponding inputs of the electronic control unit 5,

- the first 11, second 12 (Fig. 2) and the third 13 rods, of which the first 11 and third 13 are made adjustable in length;

- attached to the seat 3 from different sides of the first and second position controllers, the first controller having an angle scale 14-1 with a latch 15-1 angle, and the second controller (Fig. 5) has an angle scale 14-2 with a latch 15-2 angle ,

- a site for placing a healthy hand (Fig. 1), mounted on one of the position controllers and consisting of an armrest 16 with a mounting pin 17 and its height lock 18,

- the site of deployment of the developed arm (Fig. 2, 3), formed by the third rod 13, in the middle part of which there is a tray 19, and at its ends are placed an elbow stop 20 and a handle 21,

- L-shaped lever 22, one end of which is mechanically connected to the second gear motor 8, and the other end is connected to the third rod 13.

One end of the rod 11 is kinematically connected with the output of the gearmotor 7, and its other end is connected via a hinge 23 to one end of the rod 12, the second gearmotor 8 is located at the other end of the rod 8. The hinge 23 is provided with an angular scale 24 with a latch 25.

On the other position controller (Fig. 1), a vertical strut 4 is installed, at the upper end of which there is a geared motor 7.

An electric vibrator 26 is made to the elbow stop 20 from the outside (Fig. 2, 3), made in the form of a DC motor electrically connected to the control unit 5, on whose shaft an eccentric (not shown) is mounted.

The first 9 and second 10 angle sensors are each made in the form of potentiometric (variable) resistors (not shown).

The electronic control unit 5 has a connector 27 for the Flash card 28 and is equipped with an audible warning device 29.

The control panel 6 has a mounting slot 30 (Fig. 1), mounted on the end of the armrest 16.

To adjust the height of the shaper of mechanical vibrations, the vertical strut 4 is made extendable (move up and down) and is equipped with a linear scale 31 and a latch 32 (Fig. 6).

To adjust the length, the right side of the first rod 11 is made retractable and provided with a linear scale 33 and a latch 34 (Fig. 1, 5, b).

To adjust the length, the right part of the third rod 13 is also made extendable and provided with a linear scale 35 and a latch 36 (Fig. 6, c).

The generator of mechanical vibrations of the device includes: a vertical strut 4, gear motors 7 and 9, rods 11-13, a hinge 23, an L-shaped lever 22, an elbow stop 20, a tray 19 and a handle 21.

To characterize the oscillatory movements of this shaper on the surface of its handle 21, the conditional point "C" is indicated (Fig. 2, 3). Projections of the trajectories of motion of this point are shown in FIG. 7, b and 7, c.

The purpose and functions of structural elements and components of the device.

The base 1 is the main supporting and connecting structural element of the device and is designed to ensure its rigidity and stability.

The rollers 2 of the base 1 facilitate the movement of the device indoors. To do this, it is enough to tilt it back so that the center of gravity of the device is approximately above the rollers 2.

Seat 3 is designed to accommodate a patient on it when performing medical procedures.

The vertical rack 4 is designed to control the height of the shaper of the mechanical vibrations of the device above the seat 3.

The electronic unit 5 is intended for receiving and issuing control and information signals.

The control panel 6 is designed to form and store the program of the device (its buttons are not shown).

Reversible gear motors 7 and 8 provide the formation of torques on their output shafts.

The angle sensors 9 and 10 convert the angular displacements of their rotors into corresponding electrical signals. As sensors 9 and 10, for example, precision potentiometric (variable) resistors can be used, the resistance value of which is proportional to the corresponding rotation angles of their rotor. In this case, structurally, each of the gear motors 7 and 8 can be made in a single housing with a corresponding sensor 9 or 10 of the angle of rotation.

The rods 11-13 provide the transmission of mechanical forces in the device (Fig. 4).

The first and second position controllers are designed to regulate the position of the vertical strut 4 together with a shaper of mechanical vibrations, as well as a site for placing a healthy hand in the space around the device.

The armrest 16 with the mounting pin 17 and its height lock 18 are designed to accommodate the patient’s healthy hand during the treatment procedure.

The rod 13 together with the tray 19 placed thereon, the elbow rest 20 and the handle 21 provide a direct mechanotherapeutic effect on the upper limb of the patient.

L-shaped lever 22 is designed to transmit mechanical force from the gear motor 8 to the rod 13.

The hinge 23 together with the latch 25 are designed to transmit mechanical force from the rod 11 to the rod 12 "at an angle".

The electric vibrator 26 generates (if necessary) vibrational vibrations intended for therapeutic treatment of the shoulder joint 37 (Fig. 4).

The above latches 15, 18, 25, 32, 34, 36 are used to "fit" the design of the device to the geometric parameters of the patient.

Removable Flash-card 28 provides storage of additional information during the development of the shoulder joint.

The sound signaling device 29 is intended for sound informing the patient and the attending medical worker about the operation of the described device. In particular, it generates sound signals when:

- start the device;

- the occurrence of an emergency;

- completion of the treatment procedure;

- to generate other warning signals.

Description of the device (in dynamics).

The treatment procedure is based on performing, under the influence of the device, flexion-extensor and circular movements of the upper limb.

a) preparing the patient for the procedures.

It is advisable that before performing the procedures the patient should be dressed in a lightweight tracksuit. It is also recommended that the development of the joint begin after a small physiotherapy (warm-up).

b) preparation of the device for procedures.

Before performing the procedures, the device must be installed on a flat horizontal surface. To facilitate movement, it is tilted back so that the center of gravity of the device is approximately above the rollers 2.

The patient sits on seat 3. After that, the device is adjusted so that the shaper of mechanical vibrations is on the side of the patient’s developed arm, and the armrest 16 is on the side of the healthy arm (Fig. 1).

Next, the paramedic, loosening the latches 15-1 and 18 (Fig. 1), adjusts the position of the armrest 16 in space, places a healthy patient’s hand on it and tightens the latches 15-1 and 18.

After that, the paramedic, loosening the latch 32, moves the vertical rack 4 together with the shaper of mechanical vibrations up or down so that the shaper is facing the patient’s chest. Tightens the latch 32.

Then, loosening the latches 34, 25 and 36, he adjusts the lengths of the rods 11 and 13 and the angle α and places the developed arm on the tray 19 so that the patient’s elbow rests against the stop 20 and his hand grabs the handle 21. Fastens the latches 34, 25 and 36.

Preparation of the patient for the procedures ends with familiarizing him with the purpose of the buttons on the remote control 6. The latter should be in an accessible place for the patient (socket 30) so that, if necessary, he could quickly interrupt the procedure.

c) the implementation of the main medical procedure.

Before its implementation, special attention should be paid to ensure that the patient’s body parts and foreign objects (blankets, pillows, cables, etc.) cannot get into the moving parts of the device.

Before starting the procedure, depending on the disease and the condition of the patient, the health worker determines the methodology and treatment regimen for the mechanical joint on the shoulder joint. In accordance with this, through the control panel 6, appropriate development programs are introduced taking into account which procedure will be carried out, namely:

- mode in which only the first gear motor 7 is turned on;

- mode in which only the second gear motor 8 is turned on;

- a mode in which both gear motors 7 and 8 are turned on simultaneously.

These modes can be carried out both during operation of the vibrator 26, and when it is turned off.

Next, using the remote control 6, the corresponding parameters of the treatment procedure are entered, in particular:

- sequence of inclusion of gear motors 7 and 8, i.e. the sequence of starting the specified operation modes of the device

- frequency of vibrational signals;

- time (duration) of the procedure;

- and etc.

In the device, each press of the buttons on the remote control 6 is "confirmed" by the sound signal of the signaling device 29, which is necessary so that the health worker and patient pay attention to a possible accidental press of the button on the remote control 6.

d) the mode of operation of the device in which only the first gear motor 7 is turned on (i.e., the gear motor 8 is turned off).

By pressing the "Start" button (not shown), the signal from the remote control 6 enters block 5, which, in turn, starts the geared motor 7. Rotation of the shaft of the latter begins to rotate the rotor of the sensor 9, from the output of which to the corresponding input of control unit 5 receive electrical signals corresponding to the angular displacement of the rotor of the sensor 9.

At the same time, under the action of the motor reducer 7, the first rod 11, together with the remaining elements of the shaper of mechanical vibrations, including the handle 21, begins to oscillate in the vertical plane along the same path. In particular, the projection of the trajectory of a certain point “C” on the handle 21 is shown in FIG. 7b in the form of a vertical (bold) line 38 (YOZ plane). The time scan t of such a trajectory is given in the form of a sinusoid 39.

Thus, in this mode, under the action of joint oscillatory movements of the rod 13, the elbow stop 20, the tray 19 and the handle 21, the portion of the patient’s upper limb from the elbow to the shoulder joint 37 of the patient also performs oscillatory (therapeutic) movements in the vertical plane YOZ, ensuring the development of mobility of the shoulder joint 37 (Fig. 4).

If the electric vibrator 26 is turned on, vibrational vibrations are added to the indicated oscillatory movements of the forearm. The latter through the elbow and humerus are transmitted to the shoulder joint.

After the treatment procedure, the device stops, which is accompanied by the corresponding sound signal of the signaling device 29.

d) the operating mode of the device, in which only the second gear motor 8 is turned on (i.e., the gear motor 7 is turned off).

By pressing the "Start" button (not shown), the signal from the remote control 6 enters block 5, which, in turn, starts the gear motor 8. The shaft of the latter starts to rotate the rotor of the sensor 10, from the output of which to the corresponding input of the control block 5 receive electrical signals corresponding to the angular displacement of the rotor of the sensor 10 (Fig. 4).

At the same time, under the influence of a gear motor 8, the L-shaped lever 22 together with the rod 13, the elbow stop 20, the tray 19, the handle 21 and the patient’s forearm placed on them begins to oscillate in the vertical plane along the same path. In particular, the projection of the trajectory of a certain point “C” on the handle 21 is shown in FIG. 7c in the form of a vertical (thick) line 40 (XOZ plane). The time scan t of such a trajectory is shown as a sinusoid 41.

Thus, in this mode, under the action of the joint oscillatory movements of the rod 13, the elbow stop 20, the tray 19 and the handle 21, the portion of the upper limb between the elbow and the palm of the patient also oscillates (medical) movements in the vertical XOZ plane, ensuring the development of the mobility of the shoulder joint 37, but on a different plane.

If the electric vibrator 26 is turned on, vibrational vibrations are added to the indicated oscillatory movements. The latter through the elbow and humerus are transmitted to the shoulder joint.

After the treatment procedure, the device stops, which is accompanied by the corresponding sound signal of the signaling device 29.

d) the mode of operation of the device, in which both motor gearboxes 7 and 8 are turned on. In addition, the electric vibrator 26 can be turned on.

By pressing the “Start” button (not shown), the signal from the remote control 6 enters block 5, which, in turn, starts both gear motors 7 and 8. The rotation of their shafts rotates the rotors of the sensors 9 and 10, from the output of which to the corresponding input unit 5 controls begin to receive electrical signals corresponding to the angular displacement of the rotors of the sensors 9 and 10.

The operation of the device in this mode is similar to the modes described above. The only difference is that the joint is developed simultaneously in two vertical planes XOZ and YOZ, the angle α between which can be different from 90 °. In this case, the simultaneous operation of both gear motors 7 and 8 leads to the fact that the shaper of mechanical vibrations makes movements along a complex (total, volumetric) trajectory. The shape of such a trajectory is also determined by the ratio of the speeds of rotation of the shafts of these gear motors 7 and 8.

Depending on the patient’s response, the healthcare provider may change this ratio.

The inclusion of the electric vibrator 26 makes additional changes to the specified path of motion of the shaper of mechanical vibrations.

Thus, changing the parameters of the procedure, you can change the total effect on the shoulder joint and thereby choose the most optimal treatment parameters.

Post-treatment activities

Post-treatment measures are carried out under the guidance of a health care provider and may include water and air procedures, herbal medicine, etc., which end with post-treatment rest.

The inventive device is a mechanotherapeutic tool intended for continuous passive development of the shoulder joint. It implies that the patient suffers from the passive movements that occur due to the device described here, in which the periarticular muscles are spared from active contractions.

The main advantage of the described treatment method based on this device over active physical therapy is the lower number of contraindications, since the diseased joint and the corresponding muscular system experience significantly less stress than physical therapy and each treatment session in the device is accompanied by less pronounced painful sensations.

In the device, due to the fact that the control unit 5 is equipped with a connector 27, it becomes possible to write the results of the procedure to the Flash card 28, as well as to read additional treatment programs from it to restore the mobility of the shoulder joint.

Achievable results.

The device is designed for continuous passive development of the shoulder joint. The scope of the device is physiotherapy departments of hospitals, clinics, rehabilitation centers. It can also be used in residential premises, educational and sports organizations, offices, health centers, resorts and other preventive and medical institutions of a wide profile.

The compliance of the claimed device with the condition of patentability "industrial applicability".

According to the applicant, the information provided in this description is sufficient for its implementation. Such a device for restoring the mobility of the shoulder joint with mechanotherapy does not cause difficulties in its manufacture, and the possibility of industrial development of the claimed technical solution is confirmed, for example, by the successful manufacture by the authors of various options for its implementation.

The above information testifies to the claimed invention, as described in its formula, about the possibility of its implementation using known methods and means, which allows us to conclude that the invention meets the patentability condition “industrial applicability” under the current law.

Thus, the claimed device meets all three conditions of patentability and has significant advantages compared with known analogues.

Information Sources Used

1. RF patent No. 134050 for utility model "Block device for restoring the mobility of the shoulder joint" according to cl. A61H 1/00. Publ. November 10, 2013

2. Patent of the Republic of Belarus No. 5645 for the invention "Device for the development of the shoulder joint" according to cl. A61H 1/02. Publ. December 30, 2003

3. RF patent No. 955515 for the utility model "Device for the development of the shoulder joint" according to cl. A61H 1/00. Publ. 07/10/2010

4. Auth. testimonial. USSR No. 1521479 for the invention "Device for the development of the shoulder joint" according to class. A61H 1/00. Publ. November 15, 1989

5. RF patent No. 10337 for utility model "Device for the prevention of treatment of contractures of the shoulder and elbow joints according to class. A61F 5/00. Publ. July 16, 1999

6. Auth. testimonial. USSR No. 1047475 for the invention "Device for mechanotherapy of the shoulder joint" according to class. A61H 1/02. Publ. 10/15/1983

7. RF patent No. 2214210 for the invention "Device for the development of movements in the joints" according to class. A61H 1/02. Publ. October 20, 2003

8. RF patent No. 155011 for utility model “Exoskeleton of the shoulder joints” according to cl. A61H 1/02. Publ. September 20, 2015

9. Auth. St. USSR №№302122 for the invention "Electromechanical apparatus for the development of joints" according to class. A61H 1/02. Publ. 04/28/1971 (prototype).

Claims (24)

1. A device for developing mobility of the shoulder joint, comprising: - a base equipped with rollers for movement; - a patient seat located on the base; - a vertical stand made of adjustable height; - an electronic control unit attached to the base; - a control panel electrically connected to the electronic control unit; - the first reversible gear motor electrically connected to the corresponding output of the electronic control unit; - and the first and second rods; characterized in that it also contains: - a second reversible gear motor electrically connected to the corresponding output of the electronic control unit; - the first and second angle sensors, the rotors of which are rigidly connected to the output shafts of the first and second reversible gear motors, respectively, and their electrical outputs are connected to the corresponding inputs of the electronic control unit; - two position adjusters, each equipped with an angular scale with a lock and attached from different sides to the patient's seat; - a healthy hand placement unit mounted on one of the position controllers and consisting of an armrest with a mounting pin and its lock; - a placement unit of a developed arm formed by a third rod, in the middle of which there is a tray, and at the ends of this rod an elbow rest and a handle are placed, respectively; - and the L-shaped lever, one end of which is mechanically connected to the second gear motor, and the other end is connected to the third rod; - one end of the first rod is kinematically connected with the output of the first reversible gear motor, and its other end is connected through a hinge to one end of the second rod, at the other end of which the second reversible gear motor is located; - at the same time, a vertical rack is installed on the other position controller, at the upper end of which the first reversible gear motor is located; - and the first and third rods are made adjustable in length. 2. The device according to p. 1, characterized in that: - an electric vibrator is attached to the elbow stop outside, made in the form of a DC motor electrically connected to the electronic control unit, on whose shaft an eccentric is mounted; - the first and second angle sensors are each made in the form of potentiometric (variable) resistors; - the electronic control unit has a connector for a Flash card and is equipped with an audible warning device; - the control panel has a socket fixed to the end of the armrest; - and the hinge between the first and second rods is also provided with an angular scale.

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