RU127307U1 - DEVICE FOR TREATMENT OF LARGE EXTREMITY LARGE JOINT ARTHROSIS - Google Patents

Abstract

The utility model relates to medicine, namely to traumatology and orthopedics.

The purpose of the utility model: The purpose of the proposed device is to simplify the design of the device by reducing the number of nodes and assemblies, increasing the reliability of fixing the seat and providing direct transmission of torque from the engine to the lower limb using a helical gear.

A device for treating arthrosis of large joints of the lower limb consists of a frame with holes on which the engine is mounted in the housing. The motor in the housing is connected to the gearbox in the housing. The gearbox in the housing is connected to a threaded rod. The screw-threaded rod is movably connected to the screw-threaded rod, which is fixed to the frame by means of clamps with bearings. Inside the rod with a screw thread, a bush fixedly connected to the fingers on which the pedals with straps are fixed is fixed. A bearing seat is attached to the frame inside of which the bearing is placed. A threaded rod is located inside the bearing. Sliding sliding frames with holes are connected to the frame. Sliding frames are connected to the seat frame. Fixed on the seat frame, backrest and headrest. A stopper is attached to the sliding frame with holes by means of a chain. A wire is connected to the motor in the housing. A speed switch, a network switch and a plug are connected to the wire.

The technical result of the proposed utility model:

- providing passive movements in the knee joints without axial load. This device is designed to improve the nutrition of the hyaline cartilage of the knee joint of patients with gonarthrosis and undergoing surgery, through passive movements without axial load. The design provides a comfortable position of the patient (reclining) in the device. The design does not contain elements that create resistance and force the patient to increase the load on the knee joint;

The device consists of a small number of nodes, which facilitates its manufacture.

Information taken into account:

- A device for the staged passive restoration of movements in large joints of the lower extremities during contractures (Magaramov M.A., Dydymov Z., Radjabov A.A., Ogurliyev A.P. RF patent No. 79036 by application dated 18.02.2008 No. 2008106278 , IPC A61H 1/100; publication date 12/20/2008);

- A device for restoring the knee joint to working capacity (Khazanov M.I .; Pilyugin G.V. RF patent No. 2195912 for application No. 20010118772/14 dated July 14, 2000; A61H 1/02, A61H 1/00; publication date January 10, 2003) ;

- A device for mechanotherapy (Radzhabov A.A. Patent of the Russian Federation No. 106522 on the application of No.2010149162 dated November 30, 2010 IPC A61B 17/56; publication date July 20, 2011) - prototype.

Description

The utility model relates to medicine, namely to traumatology and orthopedics.

Analogue 1. It is known that “A device for staged passive restoration of movements in large joints of the lower extremities during contractures” (Magaramov MA, Dydymov Z.A., Radzhabov A.A., Ogurliev A.P. RF patent for utility model No. 79036 according to the application No. 2008106278, IPC A61H 1/100, prior dated February 18, 2008, published on December 20, 2008, Bull. No. 35.) made of an all-metal frame on which an engine is mounted, connected to the gearbox and fixed fixed to it by a threaded rod with a slider, pusher and foot-mounted movably fixed to it, the direction is moved which changes by means of relay control circuits receiving a signal from end signaling devices, movably fixed on the rod and moved by handles with regulators, is switched on and off by a switch. The goal is achieved by fixing the patient’s foot in the foot, movably fixed to the threaded rod, which is fixedly connected to the gearbox and motor. The required angle of limb flexion in the joints is set by rotating the control knobs that move the end signaling devices along the rod and changing the direction of rotation of the engine, gearbox and threaded rod after reaching limb flexion or extension to the specified limit due to contact with the pusher, by means of circuits relay control, at the same time, providing a controlled "pause" at the end of the specified limit of movement of the footblock with a fixed foot of the patient. After reaching the flexion or extension of the limb in the joint to a predetermined limit, a stepwise movement of the control knobs along the rod is carried out to subsequently increase the range of movements.

Analogue 2. It is known “Device for restoring the knee joint's working capacity” (Khazanov M.I .; Pilyugin G.V. RF Patent No. 2195912 by Application No.2000118772 / 14 of 07.14.2000; A61H 1/02, A61H 1/00; date publication 10.01.2003), containing a chair for the patient, a lodgement for a sick lower leg. A mechanism for creating a metered load is attached to the chair. Using the handle for manual rotation of the drive connected to the gears, the patient independently sets the load. The gears are on the same axis with the crank disk with a variable eccentricity of the connecting rod to it. The connecting rod has openings for regulating the swing amplitude of the lower leg tray, pivotally connected to it. And the lodgement for the lower leg through the bracket is pivotally attached to the base of the chair.

The device is used as follows. The patient is seated in a chair and the thigh is fixed with a belt. The drumstick is placed on the lodgement and fixed with straps. For mechanotherapy of the knee joint, the required swing amplitude of the lodgement is pre-adjusted. To do this, the crank finger is rearranged on the disk, and the angular swing zone is set by rearranging the finger on the connecting rod. The patient rotates the handle by hand, setting in motion the mechanism for creating a metered load, thereby shaking the tool tray with an injured leg and developing the knee joint on its own.

The mechanism for creating a dosed load is mounted both on the right and on the left side of the chair, depending on the needs of the patient.

Criticism of analogues:

- when developing a knee joint, a necessary element is the presence of an external fixation apparatus on the thigh.

- analog devices consist of a large number of work items;

- designs are inconvenient in operation due to the large number of adjustable parameters;

- no operational reversal of the load is provided in case of pain;

- the patient is forced to make additional efforts developing the knee joint independently.

- during the procedure, the patient sits away from the structure, which forces to periodically move the structure, bringing its position in line with the position of the patient.

Prototype. As a prototype taken "Device for mechanotherapy" (Radzhabov A.A. Patent of the Russian Federation for utility model No. 106522 by application No.2010149162, IPC A61B 17/56, prior, dated November 30, 2010, published on July 20, 2011, Bull. No. 20), containing the frame with which the sliding frame and the engine are connected. The engine is connected to the gearbox, gear flywheel and capacitor. A wire with a plug is connected to the capacitor. The engine is closed by a cover. A sleeve is also connected to the frame. An axis is located inside the sleeve. A finger with a pedal is attached to the axis. A belt is attached to the pedal. A gear flywheel is mounted on the axle. A finger with a pedal is attached to the axis. A belt is attached to the pedal. The gear flywheel is connected to the gear flywheel via a chain. The sliding frame contains a stop connected to the handle by means of a threaded rod. A seat, back and headrest are attached to the sliding frame. A switch is connected to the wire.

An example of a specific application of the device: Before starting the procedure, the patient sits in the seat, leans back, resting his head on the headrest. Then he places the foot of the right lower limb between the pedal and the belt and places the foot of the left lower limb between the pedal and the belt. Next, the plug is inserted into the socket and the motor is turned on with a switch. The rotation of the engine is transmitted to the gearbox, the gear flywheel of which transfers the rotation to the gear flywheel, which rotates the axis with the pedal and pedal. The duration of the procedure (passive movements in the knee joints, without axial load) depends on the severity of the pain syndrome and the number of procedures - it is set individually for each patient. Cadence is 25 rpm. After the procedure, the device is turned off.

Criticism of the prototype:

1. The design contains one emphasis to hold the seat on which the patient sits, which does not protect against spontaneous sliding of the seat frame with the patient;

2. Transmission of rotation from the gearbox to the pedals by means of gear flywheels and a chain

3. When working with the device, it is necessary to use replaceable elements (springs), which complicates the work;

4. The device contains a large number of nodes, which complicates its operation.

The purpose of the proposed device:

The aim of the proposed device is to simplify the design of the device by reducing the number of nodes and assemblies, increasing the reliability of fixing the seat and providing direct transmission of torque from the engine to the lower limb using a helical gear.

The essence of the proposed utility model

Proposed as an invention, the device is depicted in figure 1 and figure 2 and figure 3, where

- Frame (figure 1, position 1; figure 2, position 1; figure 3, position 1)

- holes (figure 1, position 2; figure 2, position 2; figure 3, position 2)

- the engine in the housing (figure 1, position 3; figure 2, position 3)

- the gearbox in the housing (figure 1, position 4)

- rod with screw thread (figure 1, position 5; figure 2, position 5)

- rod with screw thread (figure 1, pos.6; figure 2, pos.6)

- clamp with bearing (Fig. 1, pos. 7; Fig. 2, pos. 7)

- clamp with bearing (figure 1, pos. 8; figure 2, pos. 8)

- sleeve (figure 2, item 9)

- finger (Fig. 1, pos. 10)

- pedal (figure 1, item 11)

- belt (Fig. 1, item 12)

- finger (figure 1, pos.13)

- pedal (figure 1, pos. 14)

- belt (Fig. 1, item 15)

- bearing housing (Fig. 1, item 16: 2, item 16)

- bearing (figure 2, item 17)

- sliding frame (Fig. 1, pos. 18: Fig. 2, pos. 18)

- holes (Fig. 1, item 19)

- sliding frame (Fig. 1, item 20: 2, item 20)

- seat frame (Fig. 1, pos. 21; Fig. 2, pos. 21)

- seat (figure 1, position 22; figure 3, position 22)

- back (figure 1, position 23; figure 3, position 23)

- headrest (figure 1, position 24; figure 3, position 24)

- stopper (figure 1, position 25; figure 3, position 25)

- chain (figure 1, item 26; figure 3, item 26)

- wire (Fig. 1, item 27)

- speed switch (figure 1, pos. 28)

- wire (figure 1, pos. 29)

- network switch (figure 1, pos. 30)

- plug (Fig. 1, item 31)

"Device for the treatment of arthrosis of large joints of the lower limb" consists of a frame (figure 1, position 1; figure 2, position 1; figure 3, position 1) with holes (figure 1, position 2; .2, item 2; figure 3, item 2) on which the engine is mounted in the housing (figure 1, item 3; figure 2, item 3). The engine in the housing (Fig. 1, pos. 3; Fig. 2, pos. 3) is connected to the gearbox in the housing (Fig. 1, pos. 4). The gearbox in the housing (figure 1, position 3; figure 2, position 3) is connected to a rod with a screw thread (figure 1, position 5; figure 2, position 5). The rod with a screw thread (Fig. 1, pos. 5; Fig. 2, pos. 5) is movably connected to the rod with a screw thread (Fig. 1, pos. 6; Fig. 2, pos. 6), which is mounted on the frame (Fig. 1, Pos. 1; Fig. 2, Pos. 1; Fig. 3, Pos. 1) by means of a clamp with a bearing (Fig. 1, Pos. 7; Fig. 2, Pos. 7) and a clamp with a bearing (figure 1, position 8; figure 2, position 8). Inside the rod with a screw thread (Fig. 1, pos. 6; Fig. 2, pos. 6), a bush (Fig. 2, pos. 9) is fixedly connected, connected to a finger (Fig. 1, pos. 10), on which fixed pedal (figure 1, 11) with a belt (figure 1, 12). Also, the sleeve (figure 2, position 9) is connected to a finger (figure 1, position 13) on which the pedal is fixed (figure 1, position 14) with a belt (figure 1, position 15). A bearing seat is attached to the frame (Fig. 1, item 16: Fig. 2, item 16) inside which the bearing is placed (Fig. 2, item 17). Inside the bearing (figure 2, item 17) is a rod with a screw thread (figure 1, item 5; figure 2, item 5). With the frame (Fig. 1, Pos. 1; Fig. 2, Pos. 1; Fig. 3, Pos. 1) a movably sliding frame is connected (Fig. 1, Pos. 18: Fig. 2, Pos. 18) with holes (figure 1, position 19) and a sliding frame (figure 1. position 20: figure 2, position 20). The sliding frame (Fig. 1, pos. 18: 2, pos. 18) with holes (Fig. 1, pos. 19) and the sliding frame (Fig. 1, pos. 20: Fig. 2, pos. 20) connected to the seat frame (Fig. 1, pos. 21; Fig. 2, pos. 21). The seat is fixed on the seat frame (Fig. 1, Pos. 22; Fig. 3, Pos. 22), a backrest (Fig. 1, Pos. 23; Fig. 3, Pos. 23) and a head restraint (Fig. 1, Pos. 24; Fig. 3, item 24). A stopper is attached to the sliding frame with holes (Fig. 1, 25; 3, 25) by means of a chain (1, 26; 3, 26). A wire is connected to the engine in the housing (Fig. 1, Pos. 3; Fig. 2, Pos. 3). With the wire (figure 1, item 27) is connected to the speed switch (figure 1, item 28) through the wire (figure 1, item 29). With a wire (Fig. 1, pos. 27), a network switch (Fig. 1, pos. 30) and a plug (Fig. 1, pos. 31) are connected.

An example of a specific application of the device: Before starting the procedure, move the seat frame (figure 1, item 21; figure 2, item 21) on the frame (figure 1, item 1; figure 2, item 1; figure 3 , pos.1) by means of a sliding frame (Fig. 1. pos. 18: Fig. 2, pos. 18) with holes (Fig. 1, pos. 19) and a sliding frame (Fig. 1. pos. 20: Fig. 2, item 20) and lock them with a stopper (figure 1, item 25; figure 3, item 25), introducing it into one of the holes (figure 1, item 19) of the sliding frame (figure 1. pos.18: Fig.2, pos.18) and holes (Fig.1, pos.2; Fig.2, pos.2; Fig.3, pos.2) in the frame (Fig.1, pos.1; figure 2, position 1; figure 3, position 1). The patient sits on the seat (figure 1, position 22; figure 3, position 22), leans against the back (figure 1, position 23; figure 3, position 23), resting his head on the head restraint (Fig. 1, item 24; figure 3, item 24). Then he places the foot of the right lower limb between the pedal (Fig. 1, pos. 11) and the belt (Fig. 1, pos. 12) and places the foot of the left lower limb between the pedal (Fig. 1, pos. 14) with the belt (Fig. .1, pos. 15). Next, the plug (Fig. 1, Pos. 3 1) is inserted into the socket and the motor is turned on in the housing (Fig. 1, Pos. 3; Fig. 2, Pos. 3) using a power switch (Fig. 1, Pos. 30) . The rotation of the engine in the housing (Fig. 1, pos. 3; Fig. 2, pos. 3) is transmitted to the gearbox in the housing (Fig. 1, pos. 4), a rod with a screw thread (Fig. 1, pos. 5; Fig. 2, pos. 5), a rod with a screw thread (Fig. 1, pos. 6; Fig. 2, pos. 6), a sleeve (Fig. 2, pos. 9), a finger (Fig. 1, pos. 10) and a finger (FIG. 1, item 13). Thus, the rotation of the pedal (figure 1, position 11) and the pedal (figure 1, position 14) at a speed of 25 revolutions per minute. The duration of the procedure (passive movements in the knee joints, without axial load) depends on the severity of the pain syndrome and the number of procedures - it is set individually for each patient. After the procedure, the device is turned off.

Features distinguishing from the prototype:

The proposed device differs from the prototype in the following:

1. The device contains a rod with a screw thread connected to a rod with a screw thread, allowing direct transmission of torque by means of a screw transmission, and the prototype does not contain;

2. The device contains a frame with holes, a sliding frame with holes and a stopper that allows you to adjust the position of the patient in the device, and the prototype does not contain.

The technical result of the proposed utility model is the provision of passive movements in the knee joints without axial load. This device is designed to improve the nutrition of the hyaline cartilage of the knee joint of patients with gonarthrosis and undergoing surgery, through passive movements without axial load. The design provides a comfortable position of the patient (reclining) in the device. The design does not contain elements that create resistance and force the patient to increase the load on the knee joint;

The device consists of a small number of nodes, which facilitates its manufacture.

Information taken into account:

- A device for the staged passive restoration of movements in large joints of the lower extremities during contractures (Magaramov M.A., Dydymov Z., Radjabov A.A., Ogurliyev A.P. RF patent No. 79036 by application dated February 18, 2008 No. 2008106278 , IPC A61H 1/100; publication date 12/20/2008);

- A device for restoring the knee joint to working capacity (Khazanov M.I .; Pilyugin G.V. RF Patent No. 2195912 by Application No. 20010118772/14 dated 07.14.2000; A61H 1/02, A61H 1/00; publication date 10.01.2003) ;

- A device for mechanotherapy (Radzhabov A.A. Patent of the Russian Federation No. 106522 on the application of No.2010149162 dated November 30, 2010 IPC A61B 17/56; publication date July 20, 2011) - prototype.

Claims (1)

A device for treating arthrosis of large joints of the lower limb, comprising a frame, an engine, a gearbox, a sliding frame, a seat, a back and a head restraint, characterized in that the device comprises a frame with holes, a sliding frame with holes, a threaded rod, a bearing, a bearing housing, stopper and chain.

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