FR2669230A1 - Mechanical device for functional and gymnastic re-education relating to the kinesiological rotations of the human body - Google Patents

Abstract

External and internal bidirectional rotator adapted for exerting a resistance to the action of the muscles involved in the phenomena of rotation and combined rotations observed in the kinesiological movements of the joints of the upper and lower limbs in functional re-education and in gymnastics. The subject of the invention is a re-education apparatus which acts against the movements of rotation and of combined rotation (eversion, inversion, supination, pronation), permitting the active exercise of the muscles involved in the rotation and the combined rotation of the upper and lower limbs, requiring, on their part, a so-called isometric concentric and static contraction. It comprises: a frame (1) housing the system which resists the effort (force) (traction spring A) and system for varying the tension of the spring (V.T.K.G.N.), on which rests a soleplate which is movable about an axis, equipped with two fastening straps (3) connected to the mechanical resistance system.

Description

FROM SCRIPT ION
The invention of the technical device relates to a physical and gynnic rehabilitation system adapted to actively exercise the muscles concerned by the rotation phenomena observed in the various joints of the upper and lower limbs of the human body.

 Currently the exercise of these muscles and their toning during movements requiring a rotation or associated joint rotation is done only manually or mechanically with the disadvantage of a non-analytical exercise of the muscles interested in the rotation and its derivatives. .

The present invention relates to:
A bidirectional external and internal rotator adapted to exert resistance to the action of the muscles concerned by the phenomena of rotation and combined rotations observed in the kinesiological movements of the joints of the upper and lower limbs of the human body for the purpose of individual functional rehabilitation.

This new di-positive allows by its adaptations
Physical reeducation and isometric concentric and static muscle strengthening, having an active or "motor" role in rotational, pronation and supination movements and their combinations concerning the mobility of the upper and lower limbs of the human body in unipodal charge or discharge.

 The apparatus according to the invention makes it possible to work in a much more analytical manner the muscles concerned by the phenomena of kinetic articular rotations.

This apparatus allows, through an axial rotation system, connected to an adjustable mechanical resistance device (tension spring), physical training, muscle strengthening and gain in joint range which concern the muscles which have a kinetic role in the active "pure" and "associated" rotations of the following joints:
- ankle: eversion and inversion associated with rotations.

 - knee: internal and external rotation.

 - hip: internal and external rotation.

- wrist: "radial" and "ulnar" inclination associated with the ro
tations.

- elbow: internal and external rotation associated with movements
pronation and supination.

 - shoulder: internal and external rotation.

 The device includes a case or chassis in "medium" (compressed wood) (Fig. 1, Fig. 2), on which is fitted a polymethylmethacrylate sole (altuglas perleglasJ provided with two "Velcro" straps allowing adaptable attachment different limb morphotypes (foot, ankle, forearm, arm), which facilitates the practical use of the apparatus in physiotherapy.

 This sole receives behind the fixings of a rotary RZJ plate (Fig. 6J on ball bearing by means of a screw (Q), nut (B), washer (P), fan washer (C) allowing also the attachment of a "Velcro" strap, plate (Z) attached to the chassis by a screw (Q), nut (B), washer (P), fan washer (C), shock-absorbing rubber (AX) system.

 Sole which allows the adaptation on itself of the various morphotypes of the upper and lower limbs in positions desired to exercise the muscular activity with rotary function, whose external and internal rotary movement is caused by the muscular contraction called "concentric isometric and static "rotator" muscles against mechanical resistance (A), or replaced by an electrical system causing the same rotational movement of the movable sole (Z) and then requiring work of the "rotator" muscles by concentric isometric contraction and printing gain in kinetic rotation amplitudes, knowing that: the chassis (1) also receives 2 fixed soles (4) covered with non-slip rubber and raised relative to the plane of the chassis (1) in order to balance the pelvic and scapular belts during of physical exercise.

The drawings appended to the description illustrate 1/8 Fig. 1 Internal face of the chassis and adaptation.

2/8 Fig. 2 Upper side of the chassis and adaptation.

3/8 Fig. 3 Section according to "SS" and "RR" of the regulation system
Of voltage.

4/8 Fig. 4 Movable base (2) and its adaptations.

5/8 Fig. 5 Section of the voltage transmission system by sys
teme 'oulie "-" cord ".

6/8 Fig. 6 Adaptation of the different elements on the mo sole
bile connecting it to the chassis.

7/8 Fig. 7 Various sections of the fastening systems.

8/8 Fig. 8 "General and overall plan and" section "of the system
"view below".

 The sole also receives (Fig. 6), in front, a fixed adaptation by nut system (B), screw (Q), fan washer (C), washer (P) of two "chair brackets" (V), connected to the resistance system (tension spring (AJJ via a rope (U) pulley (T) system).

 The "chair brackets" (V) joining the sole to the mechanical resistance device (A) pass through the chassis by a curved groove (8) made therein.

 This sole also receives between the brackets (V) a wheel (W) fixed by a nut (B), screw (Q), fan washer (C), washer (P) and independent of the chassis.

This wheel (W) follows the movements of the sole and rests on the chassis following the edge of the groove.

 Its movements are made on the chassis covered at this point with a "rubber" surface isolating the phonic phenomenon of movement.

 On its upper face, the chassis has two other raised soles covered with non-slip rubber.

 These soles allow the rest of the inactive member during exercise and kinesologically rebalance the pelvic and shoulder girdles during exercise.

 On the upper side of the chassis (Fig. 1J also appear in parallel two parallel grooves (9J with fixed soles (4J and located on their outer edge allowing the passage of a screw (Q) connected to an isolated bakelyte ball (J) of the chassis by a washer (P) and whose movement is integral with the tension of the spring (A) which makes it a cursor for reading the tension of the spring.

 The tension variations of the springs (A) are not made by means of two threaded rods (K) actuated by two star flywheels (N) integral with these and located on the edge of the chassis (Fig. 3).

 The rotation of the threaded rod allows the advancement or the retraction of a nut (GJ welded to two screws (Q) on which the slider system is fixed at the top and the spring ears (A) at the bottom by the nut system ( B) washer (P) fan washer (C) (Fig. 3).

 The transmission of the resistance during the rotations is done by the intermediary of a cord (U) connected on the one hand to the ear of the spring (A) and on the other hand to the "chair square" secured to the movable sole (Fig. 5).

 During left-hand rotations, the resistance comes from the tension of the right spring (A), the left spring (A) remaining at rest (Fig. 6).

 The maximum right or left angulation given to the sole relative to its axis of rotation is greater than the conventional values recognized in kinesiology and classical anatomy (Fig. 6).

 The chassis is provided with a handle located on its edge also receiving the two ZNJ star steering wheels allowing easier handling of the device.

 The bottom of the chassis (1) can receive non-slip components or components that can vary its inclination relative to the ground.

 Likewise, two or three orifices can be adapted allowing the fixing of wall "fixing lugs", for hanging the device on a wall and working certain rehabilitation movements more easily.

 We can also adapt a work delay system by an electronic sensor, switch, indicator light, temooriser, allowing the subject to control the duration of his work with each movement and thus apply specific methods of muscle building used in physiotherapy.

 The voltage regulation system (its variation) (VTHCN) (threaded rod, bolt welded to the two screws, slider) can be removed and thus give the device a rotary function against linear resistance tAJ, involving static muscle exercise .

 The tension regulation system can be replaced by an electric motor system which rotates the movable sole (2) and then requires muscular exercise by isometric concentric and static contraction.

Claims (1)

 R E SELL I CA T IONS  1J Mechanical device suitable for functional re-education and gymnastics, with the aim of strengthening the active muscles in the phenomena of rotation and combined rotation, characterized in that it comprises a chassis (1) housing an adjustable mechanical resistance system (VTHGN ) (tension spring (A)) and supporting a sole (2) provided with fixing straps (3) movable sole (2) around an axis allowing rotation in a plane parallel to the chassis (1).  2) device according to claim i characterized in that the external and internal rotary movement is caused by the so-called "concentric and static isometric" muscle contraction of "rotator" muscles against mechanical resistance (AJ.  3) Device according to any one of the preceding claims, characterized in that the chassis (1) also receives 2 fixed soles (4) covered with non-slip rubber and raised relative to the plane of the chassis (1) in order to balance the pelvic belts and scapulars during physical exercise.  4) Device according to any one of the preceding claims, characterized in that the resistance system (V.T.H.G.N.A.) to muscular effort stabilizes the movable sole (2J at rest by balancing the tension of the springs (A).  5J device according to any one of the preceding claims, characterized in that the movable sole (2) provided with fixing straps (3) allows the adaptation on itself of the various morphotypes of the upper and lower limbs in positions desired for exercise muscular activity with a rotary function.  6) Device according to any one of the preceding claims characterized in that the resistance mechanism can be remolacé by an electrical system causing the same movement; rotation of the movable sole (Z) and then requiring work of the "rotator" muscles by eccentric isometric contraction and giving a gain in the kinetic rotation amplitudes.