WO2008072054A1 - Device for testing the condition of a patient's wrist - Google Patents

Device for testing the condition of a patient's wrist Download PDF

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Publication number
WO2008072054A1
WO2008072054A1 PCT/IB2007/003837 IB2007003837W WO2008072054A1 WO 2008072054 A1 WO2008072054 A1 WO 2008072054A1 IB 2007003837 W IB2007003837 W IB 2007003837W WO 2008072054 A1 WO2008072054 A1 WO 2008072054A1
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WO
WIPO (PCT)
Prior art keywords
wrist
load
guide portion
handle
rotational movement
Prior art date
Application number
PCT/IB2007/003837
Other languages
French (fr)
Inventor
Marc Garcia-Elias Cos
Alberto Lluch Homedes
Original Assignee
Bioprofile
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Publication date
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Publication of WO2008072054A1 publication Critical patent/WO2008072054A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1124—Determining motor skills
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A63B23/14—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles for wrist joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4528—Joints
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B2023/003—Exercising apparatus specially adapted for particular parts of the body by torsion of the body part around its longitudinal axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights
    • A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
    • A63B21/0624—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces by moving the guiding means
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06—User-manipulated weights
    • A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
    • A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
    • A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4001—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor
    • A63B21/4017—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor to the upper limbs

Definitions

  • the present invention relates to a device for testing the wrist condition of a patient.
  • the radius When the forearm is turned from the maximum supine position (palm of the hand up) to the maximum pronation position (palm of the hand down), the radius, one of the two bones of the forearm, rotates in relation to the ulna, the other forearm bone, around an oblique axis defined by a line connecting the center of the radial head (proximal radius) and the center of the cubital head (distal part of the ulna).
  • the two bones are parallel in supination, while in pronation the radius crosses the ulna.
  • FIG. 1 shows the respective distal ends of the radius and the ulna, indicated by the markers 1 and 2, in the pronation (FIG. 1a), supination (FIG. 1c) and in the neutral (FIG. Figure 1b).
  • the test device aims to test the resistance of the ulnar radio articulation, more generally the wrist, to a load in a large number of different positions. For this, the force conditions applied to the wrist must be the same in all these positions.
  • Document US Pat. No. 5,718,654 and US Pat. No. 1,333,005 disclose weight training devices comprising an inner ring in which a handle is fixed, an outer ring guided around the inner ring by means of balls, and a suspended load. to the outer ring.
  • these devices allow, in a particular configuration of use (document US 1 333 005: load left vertical), a prognostic movement of the wrist without modification of the moment of force exerted by the load on the wrist.
  • These weight training devices are nevertheless difficult to achieve because the implementation of a ball bearing of such size is complicated and expensive.
  • the outer ring must be dimensionally stable. But the load can subject the outer ring to a very important force. The sizing of the parts and the choice of materials must therefore meet very specific requirements.
  • the present invention aims to remedy these drawbacks and proposes for this purpose a device for testing the state of a wrist, comprising:
  • a structure comprising a handle and a guide part
  • Such a device therefore subject, during a continuous rotational movement of the wrist of a patient, such as a movement of pronosupination, the patient's hand to a force of gravity of constant intensity and moment by relative to the axis of rotation of the wrist substantially constant, typically substantially zero. It is thus possible to reliably determine and compare the resistance of the wrist in all positions of this continuous rotational movement.
  • the value of the load can be increased gradually so as to determine the threshold up to which the patient can support the load during all the rotational movement without feeling pain. This pain threshold is representative of the condition of the wrist. It will be even higher than the wrist is healthy and in particular the cartilage at the level of the ulnar radio articulation is in good condition.
  • the device according to the invention is much simpler and much cheaper to manufacture than known ball bearing devices.
  • friction is very low.
  • the guide portion does not need to be rigorously dimensionally stable. It could even be flexible.
  • FIG. 2 schematically shows the device according to the invention in partially cut view
  • FIG. 3 shows the device according to the invention held by the hand of a patient in three different positions of a pronosupination movement of the wrist, namely a pronation position (FIG. 3a), a neutral position (FIG. 3b). and a supine position ( Figure 3c).
  • a device for testing the state of a wrist according to the invention comprises a rigid structure 3 to which a load 4 is suspended.
  • the rigid structure 3 comprises, in the same plane, a straight part 5, a curved concave part 6 which connects the two ends of the right part 5 and a handle or handle 7 situated between the straight and curved parts 5, 6, this sleeve 7 being fixed by one of its ends to the right portion 5 and extending orthogonally thereto, the other end of the sleeve 7 remaining free.
  • the curved portion 6 preferably has a circular arc shape, as illustrated, and its section is for example circular.
  • the concave face 6a of this curved portion 6 cooperates with a groove of a pulley 8 to support and guide the pulley 8 so that it can move freely from one end to the other of the concave face 6a.
  • the load 4 is suspended from the axis 9 of the pulley 8 by means of a wire or a rod 10 suspended by a hook 11 from a U-shaped part 12 whose two ends are respectively fixed at the ends of the axis 9.
  • the load 4 comprises a support member 13, retained by the end of the wire or the rod 10 opposite the hook 11.
  • This support member 13 comprises a plate 14 on which can be placed and superimposed one or more removable weight 15 and a central guide member 16 cooperating with a central bore weights 15 for guiding and radially position them.
  • the weights 15 can be placed on or removed from the tray 14 by unhooking the hook 11 from the workpiece 12 and moving the weights 15 along the wire or the rod 10, the hook 11 having a smaller size than the central bore of the weights 15 to allow their passage.
  • the patient is asked to hold the structure 3 in a vertical plane (plane of Figure 2) by its handle 7, with the forearm in a horizontal position, then to turn the wrist between a pronation position and a supination position (see Figure 3).
  • the structure 3 rotates in the vertical plane aforementioned and, under the effect of the vertical force applied by the load 4, the pulley 8 moves on the curved portion 6 so that the load 4 remains under the handle 7 and the hand, in the vertical thereof, and remains more precisely substantially centered on a vertical line 17 passing through the center of the handle 7.
  • the center of the arc defined by the guide portion 6 is substantially coincident with the center of the handle 7 and is substantially located on the axis of rotation of the wrist.
  • the wrist of the patient is thus subjected, during its movement, to a force of constant direction and intensity and moment relative to the axis of rotation of the wrist substantially constant because substantially zero.
  • Weights can be removed or added to adjust the value of the load 4.
  • the amount of load from which the patient will feel pain at any time during wrist rotation will be representative of the condition of the wrist.
  • the device according to the invention can be used, for example, before and after a wrist operation, to evaluate the improvement provided by said operation.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

The device of the invention includes : a structure (3) comprising a handle (7) and a guiding portion (6), a mobile member (8) guided on the guiding portion (6), and a load (4) suspended from said mobile member (8), the guiding portion (6) being adapted so that, during a predetermined rotational movement of the structure (3) due to the rotational movement of the wrist of a person holding the structure (3) by the handle (7), the momentum of the force applied by the load (4) on the wrist remains essentially constant, said device being characterised in that the mobile member (8) is a pulley rolling on the guiding portion (6).

Description

Dispositif de test de l'état du poignet d'un patient Device for testing the wrist condition of a patient
La présente invention concerne un dispositif de test de l'état du poignet d'un patient.The present invention relates to a device for testing the wrist condition of a patient.
Lorsque l'avant-bras est tourné de la position de supination maximale (paume de la main vers le haut) à la position de pronation maximale (paume de la main vers le bas), le radius, l'un des deux os de l'avant-bras, tourne par rapport au cubitus, l'autre os de l'avant-bras, autour d'un axe oblique défini par une ligne reliant le centre de la tête radiale (partie proximale du radius) et le centre de la tête cubitale (partie distale du cubitus). Les deux os sont parallèles en supination, alors qu'en pronation le radius croise le cubitus. Ce croisement des os implique que la partie distale du radius tourne autour de la partie distale du cubitus, c'est-à-dire se déplace d'un côté de la tête cubitale à l'autre côté de la tête cubitale, lorsque l'avant-bras tourne de la position de pronation à la position de supination. Ceci est illustré à la figure 1 annexée, qui montre les extrémités distales respectives du radius et du cubitus, désignées par les repères 1 et 2, dans les positions de pronation (figure 1a), supination (figure 1c) et dans la position neutre (figure 1b).When the forearm is turned from the maximum supine position (palm of the hand up) to the maximum pronation position (palm of the hand down), the radius, one of the two bones of the forearm, rotates in relation to the ulna, the other forearm bone, around an oblique axis defined by a line connecting the center of the radial head (proximal radius) and the center of the cubital head (distal part of the ulna). The two bones are parallel in supination, while in pronation the radius crosses the ulna. This crossing of the bones implies that the distal part of the radius rotates around the distal part of the ulna, that is to say moves from one side of the ulnar head to the other side of the ulnar head, when the forearm rotates from the pronation position to the supine position. This is illustrated in the appended FIG. 1, which shows the respective distal ends of the radius and the ulna, indicated by the markers 1 and 2, in the pronation (FIG. 1a), supination (FIG. 1c) and in the neutral (FIG. Figure 1b).
Lorsque l'avant-bras est horizontal et que la main tient une charge, une partie au moins de la force verticale générée par la charge sera dissipée sur la face latérale du cubitus sous forme de contraintes de cisaillement. En position neutre, en revanche, la force est principalement transmise au cubitus sous forme de contraintes de compression. On comprend donc qu'à chaque degré de pronosupination, entre les positions de pronation et de supination, la configuration des contraintes appliquées à la tête cubitale sera unique.When the forearm is horizontal and the hand holds a load, at least a portion of the vertical force generated by the load will be dissipated on the lateral face of the ulna in the form of shear stresses. In the neutral position, on the other hand, the force is mainly transmitted to the ulna in the form of compressive stresses. It is therefore understandable that at each degree of pronosupination, between the positions of pronation and supination, the configuration of the stresses applied to the cubital head will be unique.
Le dispositif de test selon l'invention vise à permettre de tester la résistance de l'articulation radio cubitale, plus généralement du poignet, à une charge dans un grand nombre de positions différentes. Pour cela, les conditions de force appliquées au poignet doivent être les mêmes dans toutes ces positions. On connaît par les documents US 5 718 654 et US 1 333 005 des dispositifs de musculation comprenant un anneau intérieur dans lequel est fixé un manche, un anneau extérieur guidé autour de l'anneau intérieur par l'intermédiaire de billes, et une charge suspendue à l'anneau extérieur. Grâce au roulement à billes que constituent l'anneau intérieur, l'anneau extérieur et les billes, ces dispositifs autorisent, dans une configuration d'utilisation particulière (document US 1 333 005 : charge laissée à la verticale), un mouvement de pronosupination du poignet sans modification du moment de la force exercée par la charge sur le poignet. Ces dispositifs de musculation sont néanmoins difficilement réalisables car la mise en œuvre d'un roulement à billes d'une telle taille est compliquée et coûteuse. De plus, pour pouvoir fonctionner dans la durée, c'est-à-dire continuer à pouvoir tourner autour de l'anneau intérieur avec un faible frottement, l'anneau extérieur doit être indéformable. Or la charge peut soumettre l'anneau extérieur à une force très importante. Le dimensionnement des pièces et le choix des matériaux doivent donc répondre à des exigences très précises.The test device according to the invention aims to test the resistance of the ulnar radio articulation, more generally the wrist, to a load in a large number of different positions. For this, the force conditions applied to the wrist must be the same in all these positions. Document US Pat. No. 5,718,654 and US Pat. No. 1,333,005 disclose weight training devices comprising an inner ring in which a handle is fixed, an outer ring guided around the inner ring by means of balls, and a suspended load. to the outer ring. Thanks to the ball bearing constituted by the inner ring, the outer ring and the balls, these devices allow, in a particular configuration of use (document US 1 333 005: load left vertical), a prognostic movement of the wrist without modification of the moment of force exerted by the load on the wrist. These weight training devices are nevertheless difficult to achieve because the implementation of a ball bearing of such size is complicated and expensive. In addition, to be able to operate over time, that is to say continue to be able to rotate around the inner ring with a low friction, the outer ring must be dimensionally stable. But the load can subject the outer ring to a very important force. The sizing of the parts and the choice of materials must therefore meet very specific requirements.
La présente invention vise à remédier à ces inconvénients et propose à cette fin un dispositif pour tester l'état d'un poignet, comprenant :The present invention aims to remedy these drawbacks and proposes for this purpose a device for testing the state of a wrist, comprising:
- une structure comprenant un manche et une partie de guidage,a structure comprising a handle and a guide part,
- un organe mobile guidé sur la partie de guidage, eta movable member guided on the guiding part, and
- une charge suspendue à l'organe mobile, la partie de guidage étant agencée pour que, pendant un mouvement de rotation déterminé de la structure réalisé par un mouvement de rotation du poignet d'une personne tenant la structure par le manche, le moment de la force exercée par la charge sur le poignet reste sensiblement constant, caractérisé en ce que l'organe mobile est une poulie roulant sur la partie de guidage.- A load suspended from the movable member, the guide portion being arranged so that during a determined rotational movement of the structure made by a rotational movement of the wrist of a person holding the structure by the handle, the moment of the force exerted by the load on the wrist remains substantially constant, characterized in that the movable member is a pulley rolling on the guide portion.
Un tel dispositif soumet donc, pendant tout un mouvement continu de rotation du poignet d'un patient, tel qu'un mouvement de pronosupination, la main du patient à une force de pesanteur d'intensité constante et de moment par rapport à l'axe de rotation du poignet sensiblement constant, typiquement sensiblement nul. Il est ainsi possible de déterminer et comparer de manière fiable la résistance du poignet dans toutes les positions de ce mouvement continu de rotation. En pratique, la valeur de la charge peut être augmentée progressivement de manière à déterminer le seuil jusqu'auquel le patient pourra supporter la charge pendant tout le mouvement de rotation sans ressentir de douleur. Ce seuil d'apparition de la douleur est représentatif de l'état du poignet. Il sera d'autant plus élevé que le poignet est sain et qu'en particulier le cartilage au niveau de l'articulation radio cubitale est en bon état.Such a device therefore subject, during a continuous rotational movement of the wrist of a patient, such as a movement of pronosupination, the patient's hand to a force of gravity of constant intensity and moment by relative to the axis of rotation of the wrist substantially constant, typically substantially zero. It is thus possible to reliably determine and compare the resistance of the wrist in all positions of this continuous rotational movement. In practice, the value of the load can be increased gradually so as to determine the threshold up to which the patient can support the load during all the rotational movement without feeling pain. This pain threshold is representative of the condition of the wrist. It will be even higher than the wrist is healthy and in particular the cartilage at the level of the ulnar radio articulation is in good condition.
Du fait que l'organe mobile est une poulie roulant sur la partie de guidage, le dispositif selon l'invention est bien plus simple et bien moins coûteux à fabriquer que les dispositifs connus à roulement à billes. Par le roulement entre la poulie et la partie de guidage, les frottements sont très faibles. La partie de guidage n'a pas besoin d'être rigoureusement indéformable. Elle pourrait même être souple.Because the movable member is a pulley rolling on the guide portion, the device according to the invention is much simpler and much cheaper to manufacture than known ball bearing devices. By the rolling between the pulley and the guide portion, friction is very low. The guide portion does not need to be rigorously dimensionally stable. It could even be flexible.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante d'un mode de réalisation particulier de l'invention faite en référence aux dessins schématiques annexés dans lesquels :Other features and advantages of the present invention will appear on reading the following detailed description of a particular embodiment of the invention with reference to the appended diagrammatic drawings in which:
- la figure 1 , déjà commentée, montre les extrémités distales respectives du radius et du cubitus dans les positions de pronation (figure 1a), supination (figure 1c) et dans la position neutre (figure 1b),- Figure 1, already commented, shows the respective distal ends of the radius and the ulna in the pronation positions (Figure 1a), supination (Figure 1c) and in the neutral position (Figure 1b),
- la figure 2 montre schématiquement le dispositif selon l'invention en vue partiellement coupée,FIG. 2 schematically shows the device according to the invention in partially cut view,
- la figure 3 montre le dispositif selon l'invention tenu par la main d'un patient dans trois positions différentes d'un mouvement de pronosupination du poignet, à savoir une position de pronation (figure 3a), une position neutre (figure 3b) et une position de supination (figure 3c). En référence à la figure 2, un dispositif de test de l'état d'un poignet selon l'invention comprend une structure rigide 3 à laquelle est suspendue une charge 4.FIG. 3 shows the device according to the invention held by the hand of a patient in three different positions of a pronosupination movement of the wrist, namely a pronation position (FIG. 3a), a neutral position (FIG. 3b). and a supine position (Figure 3c). With reference to FIG. 2, a device for testing the state of a wrist according to the invention comprises a rigid structure 3 to which a load 4 is suspended.
La structure rigide 3 comprend, dans un même plan, une partie droite 5, une partie courbe concave 6 qui relie les deux extrémités de Ia partie droite 5 et un manche ou poignée 7 situé entre les parties droite et courbe 5, 6, ce manche 7 étant fixé par une de ses extrémités à la partie droite 5 et s'étendant orthogonalement à cette dernière, l'autre extrémité du manche 7 restant libre.The rigid structure 3 comprises, in the same plane, a straight part 5, a curved concave part 6 which connects the two ends of the right part 5 and a handle or handle 7 situated between the straight and curved parts 5, 6, this sleeve 7 being fixed by one of its ends to the right portion 5 and extending orthogonally thereto, the other end of the sleeve 7 remaining free.
La partie courbe 6 a de préférence une forme en arc de cercle, comme illustré, et sa section est par exemple circulaire. La face concave 6a de cette partie courbe 6 coopère avec une gorge d'une poulie 8 pour supporter et guider cette poulie 8 de sorte qu'elle puisse se déplacer librement d'une extrémité à l'autre de la face concave 6a.The curved portion 6 preferably has a circular arc shape, as illustrated, and its section is for example circular. The concave face 6a of this curved portion 6 cooperates with a groove of a pulley 8 to support and guide the pulley 8 so that it can move freely from one end to the other of the concave face 6a.
La charge 4 est suspendue à l'axe 9 de la poulie 8 par l'intermédiaire d'un fil ou d'une tige 10 suspendu par un crochet 11 à une pièce en forme de U 12 dont les deux extrémités sont fixées respectivement aux extrémités de l'axe 9. Dans l'exemple illustré, la charge 4 comprend un organe de support 13, retenu par l'extrémité du fil ou de la tige 10 opposée au crochet 11. Cet organe de support 13 comporte un plateau 14 sur lequel peuvent être posés et superposés un ou plusieurs poids amovibles 15 et un élément de guidage central 16 coopérant avec un alésage central des poids 15 pour guider et positionner radialement ces derniers. Les poids 15 peuvent être posés sur le plateau 14 ou retirés de celui-ci en décrochant le crochet 11 de la pièce 12 et en déplaçant les poids 15 le long du fil ou de la tige 10, le crochet 11 ayant une taille plus petite que l'alésage central des poids 15 pour autoriser leur passage.The load 4 is suspended from the axis 9 of the pulley 8 by means of a wire or a rod 10 suspended by a hook 11 from a U-shaped part 12 whose two ends are respectively fixed at the ends of the axis 9. In the example illustrated, the load 4 comprises a support member 13, retained by the end of the wire or the rod 10 opposite the hook 11. This support member 13 comprises a plate 14 on which can be placed and superimposed one or more removable weight 15 and a central guide member 16 cooperating with a central bore weights 15 for guiding and radially position them. The weights 15 can be placed on or removed from the tray 14 by unhooking the hook 11 from the workpiece 12 and moving the weights 15 along the wire or the rod 10, the hook 11 having a smaller size than the central bore of the weights 15 to allow their passage.
Pour déterminer l'état du poignet d'un patient, on demande au patient de tenir la structure 3 dans un plan vertical (plan de la figure 2) par son manche 7, avec l'avant-bras en position horizontale, puis de tourner le poignet entre une position de pronation et une position de supination (cf. figure 3). Pendant ce mouvement de rotation du poignet, la structure 3 tourne dans le plan vertical précité et, sous l'effet de la force verticale appliquée par la charge 4, la poulie 8 se déplace sur la partie courbe 6 de sorte que la charge 4 reste sous le manche 7 et la main, à la verticale de ceux-ci, et reste plus précisément sensiblement centrée sur une ligne verticale 17 passant par le centre du manche 7. A cet effet, le centre de l'arc de cercle défini par la partie de guidage 6 est sensiblement confondu avec le centre du manche 7 et est sensiblement situé sur l'axe de rotation du poignet. Le poignet du patient est ainsi soumis, pendant son mouvement, à une force de direction et d'intensité constantes et de moment par rapport à l'axe de rotation du poignet sensiblement constant car sensiblement nul. Des poids 15 peuvent être enlevés ou ajoutés pour régler la valeur de la charge 4. La valeur de charge à partir de laquelle le patient ressentira une douleur à un moment quelconque lors de la rotation du poignet sera représentative de l'état du poignet. Le dispositif selon l'invention peut être utilisé, par exemple, avant et après une opération du poignet, pour évaluer l'amélioration apportée par ladite opération. To determine the state of the wrist of a patient, the patient is asked to hold the structure 3 in a vertical plane (plane of Figure 2) by its handle 7, with the forearm in a horizontal position, then to turn the wrist between a pronation position and a supination position (see Figure 3). During this movement of rotation of the wrist, the structure 3 rotates in the vertical plane aforementioned and, under the effect of the vertical force applied by the load 4, the pulley 8 moves on the curved portion 6 so that the load 4 remains under the handle 7 and the hand, in the vertical thereof, and remains more precisely substantially centered on a vertical line 17 passing through the center of the handle 7. For this purpose, the center of the arc defined by the guide portion 6 is substantially coincident with the center of the handle 7 and is substantially located on the axis of rotation of the wrist. The wrist of the patient is thus subjected, during its movement, to a force of constant direction and intensity and moment relative to the axis of rotation of the wrist substantially constant because substantially zero. Weights can be removed or added to adjust the value of the load 4. The amount of load from which the patient will feel pain at any time during wrist rotation will be representative of the condition of the wrist. The device according to the invention can be used, for example, before and after a wrist operation, to evaluate the improvement provided by said operation.

Claims

REVENDICATIONS
1. Dispositif pour tester l'état d'un poignet, comprenant :Device for testing the condition of a wrist, comprising:
- une structure (3) comprenant un manche (7) et une partie de guidage (6),a structure (3) comprising a handle (7) and a guide portion (6),
- un organe mobile (8) guidé sur la partie de guidage (6), et- a movable member (8) guided on the guide portion (6), and
- une charge (4) suspendue à l'organe mobile (8), la partie de guidage (6) étant agencée pour que, pendant un mouvement de rotation déterminé de la structure (3) réalisé par un mouvement de rotation du poignet d'une personne tenant la structure (3) par le manche (7), le moment de la force exercée par la charge (4) sur le poignet reste sensiblement constant, caractérisé en ce que l'organe mobile (8) est une poulie roulant sur la partie de guidage (6).- a load (4) suspended from the movable member (8), the guide portion (6) being arranged so that during a determined rotational movement of the structure (3) achieved by a rotational movement of the wrist of a person holding the structure (3) by the handle (7), the moment of the force exerted by the load (4) on the wrist remains substantially constant, characterized in that the movable member (8) is a pulley rolling on the guide portion (6).
2. Dispositif selon la revendication 1 , caractérisé en ce que la poulie (8) roule sur une face concave (6a) de la partie de guidage (6).2. Device according to claim 1, characterized in that the pulley (8) rolls on a concave face (6a) of the guide portion (6).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la partie de guidage (6) est sensiblement en forme d'arc de cercle.3. Device according to claim 1 or 2, characterized in that the guide portion (6) is substantially in the form of a circular arc.
4. Dispositif selon la revendication 3, caractérisé en ce que la structure (3) comprend en outre une partie droite (5) dont les extrémités sont reliées par la partie de guidage (6), le manche (7) étant fixé par une de ses extrémités à la partie droite (5) et étant situé entre la partie droite (5) et la partie de guidage (6).4. Device according to claim 3, characterized in that the structure (3) further comprises a straight portion (5) whose ends are connected by the guide portion (6), the handle (7) being fixed by one of its ends to the right part (5) and being located between the right part (5) and the guide part (6).
5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la valeur de la charge (4) est réglable. 5. Device according to any one of claims 1 to 4, characterized in that the value of the load (4) is adjustable.
6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la charge (4) comprend un organe de support (13) suspendu à l'organe mobile (8).6. Device according to any one of claims 1 to 5, characterized in that the load (4) comprises a support member (13) suspended from the movable member (8).
7. Dispositif selon la revendication 6, caractérisé en ce que la charge (4) comprend en outre au moins un poids (15) supporté par l'organe de support (13).7. Device according to claim 6, characterized in that the load (4) further comprises at least one weight (15) supported by the support member (13).
8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la structure (3) est rigide.8. Device according to any one of claims 1 to 7, characterized in that the structure (3) is rigid.
9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la partie de guidage (6) est agencée pour que le moment de la force exercée par la charge (4) sur le poignet soit sensiblement nulle pendant ledit mouvement de rotation de la structure (3).9. Device according to any one of claims 1 to 8, characterized in that the guide portion (6) is arranged so that the moment of the force exerted by the load (4) on the wrist is substantially zero during said movement rotation of the structure (3).
10. Dispositif selon la revendication 9, caractérisé en ce que la partie de guidage (6) est agencée pour que la charge (4) reste sensiblement à la verticale du manche (7) pendant ledit mouvement de rotation de la structure (3).10. Device according to claim 9, characterized in that the guide portion (6) is arranged so that the load (4) remains substantially vertical to the handle (7) during said rotational movement of the structure (3).
11. Dispositif selon la revendication 10, caractérisé en ce que la partie de guidage (6) est agencée pour que la charge (4) reste sensiblement centrée sur une ligne verticale (17) passant par le centre du manche (7) pendant ledit mouvement de rotation de la structure (3). 11. Device according to claim 10, characterized in that the guide portion (6) is arranged so that the load (4) remains substantially centered on a vertical line (17) passing through the center of the handle (7) during said movement rotation of the structure (3).
12. Dispositif selon l'une quelconque des revendications 1 à 11 , caractérisé en ce que ledit mouvement de rotation du poignet est un mouvement de pronosupination. 12. Device according to any one of claims 1 to 11, characterized in that said rotational movement of the wrist is a movement of pronosupination.
PCT/IB2007/003837 2006-12-13 2007-12-10 Device for testing the condition of a patient's wrist WO2008072054A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0655469A FR2909854B1 (en) 2006-12-13 2006-12-13 DEVICE FOR TESTING THE STATUS OF A PATIENT'S WRIST
FR0655469 2006-12-13

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WO2008072054A1 true WO2008072054A1 (en) 2008-06-19

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WO (1) WO2008072054A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175150A1 (en) * 2016-04-06 2017-10-12 Reaxing S.R.L. Exercise device
AT519814A2 (en) * 2017-03-31 2018-10-15 Spindlberger Karl exerciser
AT521664A2 (en) * 2018-09-13 2020-03-15 Karl Spindlberger Ball rolling weights
US10946231B2 (en) 2016-04-06 2021-03-16 Reaxing S.R.L. Exercise device

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US1333005A (en) * 1919-06-14 1920-03-09 Harvey J Warner Exerciser
US4828253A (en) * 1987-07-20 1989-05-09 Schicketanz Jay S Two person exercise device
US5718654A (en) * 1996-10-08 1998-02-17 Kennedy; Edward S. Weight lifting cable attachment allowing pronation and supination of the hand
US5967949A (en) * 1997-06-25 1999-10-19 Davenport; Michael D. Exercise device

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Publication number Priority date Publication date Assignee Title
US1333005A (en) * 1919-06-14 1920-03-09 Harvey J Warner Exerciser
US4828253A (en) * 1987-07-20 1989-05-09 Schicketanz Jay S Two person exercise device
US5718654A (en) * 1996-10-08 1998-02-17 Kennedy; Edward S. Weight lifting cable attachment allowing pronation and supination of the hand
US5967949A (en) * 1997-06-25 1999-10-19 Davenport; Michael D. Exercise device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175150A1 (en) * 2016-04-06 2017-10-12 Reaxing S.R.L. Exercise device
US10946231B2 (en) 2016-04-06 2021-03-16 Reaxing S.R.L. Exercise device
AT519814A2 (en) * 2017-03-31 2018-10-15 Spindlberger Karl exerciser
AT521664A2 (en) * 2018-09-13 2020-03-15 Karl Spindlberger Ball rolling weights

Also Published As

Publication number Publication date
FR2909854A1 (en) 2008-06-20
FR2909854B1 (en) 2010-02-12

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