SU1297855A1 - Arrangement for developing movements in joints of extremities - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is to provide a smooth adjustment during the development of movements. The device contains an electric motor; 1 and V-belt transmissions 2, a two-way clutch 3 consists of two coupling halves 4, Clutch 3 is equipped with a mechanism that contains a shift lever 7. The clutch switching mechanism moves the disk 6 along the shaft axis until it touches one of the coupling halves 4, due to this, the input shaft of the gearbox 5 receives two speedy ones (L 1C ooo sp

Description

these rotations. A gearbox 5 is connected via gears to a gearbox 10, on the output shaft of which a crank 11 is fixed with a finger 12 moving in a slot groove. 13. Through axis 25, the link 13 is pivotally connected to a lever 26, on which

one

The invention relates to medical technology and is intended to restore the function of the joints of the limbs.

The purpose of the invention is to provide a smooth adjustment during the development of movements.

The drawing shows a kinematic diagram of a device for developing movements in the joints of the limbs.

The device contains an electric motor 1, V-belt drives 2, a double-sided friction clutch 3 consisting of two coupling halves 4 - V-belt pulleys freely rotating on the shaft of the two-stage gearbox 5 and a friction disk 6 located between the coupling halves 4 with the possibility of displacement and the shaft axis. The clutch 3 is equipped with a switching mechanism which contains a lever

7switch over t

8 and a lever 9 with a friction disk 6 of the clutch 3. The clutch switching mechanism moves the disk 6 along the shaft axis until it touches one of the half couplings 4, as a result of which the input shaft of the gearbox 5 receives two rotational speeds.

The gearbox 5 is connected via gears with a gearbox 10 on the output shaft of which a crank 11 is rigidly fixed with a finger 12 moving in a groove of the wings 13, swinging around the axle 14, pivotally mounted in the support 15, which is adapted to move in a guide 16 by means of a movement mechanism which comprises a flywheel 17, connected by means of a helical gear, including helical gears 18 and 19, a screw pair containing a screw 20 and a nut 21, two

297855

rollers 27. are secured. A four-way reverse polyspast mechanism formed by rollers 27 and 28 provides an increase in traction 29. The functional tire consists of a frame 30, a support 32, a load 33 and two telescopic frames 31. I Il.

lever 23 with a finger 24, moving the support 15 with the axis 14 of the swing backstage 13 and ensuring the fixation of the support in any position.

Kulik 13 through the axis 25 of the ball- (lowly connected to the lever 26, on which are fixed the rollers 27, which form with the fixed rollers 28 a fourfold reverse mechanism

polyspast, which provides a fourfold increase in the movement of gi 29.

The functional tire consists of a fixed frame 30 with guides,

two telescopic frames 31, pivotally connected to each other, podstopnik 32 and cargo 33.

The device works as follows.

The patient is placed on the bed and his leg is attached to the functional tire. Th ha 29 is passed through guide rollers 34 and attached to the tire in accordance with the design

Vaima joint.

The knobs on the control panel set the required number of cycles, set the speed and amplitude of oscillation.

The amplitude of oscillation is set by rotating the flywheel 17. When the support 15 moves with the axis 14 of the swing of the backstage 13, there is a stepless change in the amplitude of the oscillation of the lever 26 with the rollers 27 from zero to the maximum. In this case, the roll-on value is achieved when the axes 14 and 25 are coaxially positioned. A change in the oscillation amplitude of the lever 26 leads to a change in the amount of movement of the pulling member 29, which causes a corresponding movement of the tire frames 31 and, consequently, bending the limb joint, is fixed

within the tire, at a certain angle.

After setting the specified parameters, the electric motor 1 is turned on. From the electric motor 1 through the wedge-drive transmission 2, the friction clutch 3, the worm gear 5, the gears 18 and 19, the rotation is transmitted to the input shaft of the three-speed gearbox 10, from which the crank 11 with the finger 12 the motion 1 street 13, which is qualitative with respect to the axis 1A of the support 15, is transmitted to the lever 26 and the movable 1 roller 27 of the chain hoist.

When the rollers 27 move upwards, tension 29 is pulled, which moves the movable frames 31, making the joint flex.

When the rollers 27 move downwards, the ha 29 also weakens the moving frames 31 under the influence of the weight of the foot and the load 33. return to the starting position.

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Claims (1)

Invention Formula A device for developing movements in the joints of the extremities, comprising a tire, flexible, adjustable drive with a gearbox, characterized in that, in order to ensure smooth adjustment during the development of movements, a slide, a crank with a finger moving in the slot of the slide, a hinge is inserted into it. - but installed in the support, the mechanism for moving the support connected to the finger is 1, and the curve is set on the output shaft of the reducer, the end of the scenes is connected with the possibility of sliding mentioned ha, one end connected to the support Rugi through two telescopic frames - with the end of the tire, which at the other end has a counterweight.