Extraoral orthopaedic device for the protraction of the jaws

An extraoral orthopedic device (I) for the direct protraction of the maxilla and the indirect protraction of the mandible, comprising:

• an ellipsoidal skeletal support wreath (II) which can be placed on the periphery of the user's neurocranium (IX), a horizontal girder (IV), which can be coupled through elastic bands (V) with an intraoral mechanism (VI) and perpendicular girders (III), which can couple the said ellipsoidal skeletal support wreath (II) with the said horizontal girder (IV) and
• the said ellipsoidal skeletal support wreath (II) which can be secured to the periphery of the user's neurocranium (IX), comprising a tightening mechanism (II.1-4) in its frontal area, and a first means of adjustment and support (II.5-7) in its lateral area to ensure the proper individualized placement and safe immobilization of the two said perpendicular girders and
• the said perpendicular girders (III) comprising a second means of adjustment and support (III.3-5) to ensure the individualized placement of the said horizontal girder (IV), aiming to optimize the direction and tension of the elastic bands (V),
• the extraoral orthopedic device (I), wherein:
• the said ellipsoidal skeletal support wreath (II) is adapted to be placed on the periphery of the user's neurocranium (IX), being ellipsoidal in shape and being fully adapted to the anatomy of the neurocranium,
• the said ellipsoidal skeletal support wreath (II) being adapted to be placed on the periphery of the user's neurocranium (IX), being adapted to be fixed in position, throughout the use of the device, by its fully anatomical shape, the tightening mechanism (II.1-4) in its frontal area and the elastic fixation strap (VII) in its dorsal area in conjunction with a belt (VIII), said belt being adapted to be fitted around the user's waist or trunk,
• the tightening mechanism (II.1-4) being of guided-adjustable type and being adapted to stabilizes the ellipsoidal skeletal support wreath (II) partially with the help of a screw, according to the perimeter of the user's head,
• the ellipsoidal skeletal support wreath (II) which can be placed on the periphery of the user's neurocranium (IX), comprising the first means of support (II.9) for the elastic fixation strap in its dorsal area, through which it is coupled with the belt (VIII), which can be passed around the user's waist or trunk,
• the elastic fixation strap (VII) comprising the first means of adjustment (VII.1) which can be used after being hung on the belt (VIII) to obtain optimal length,
• the above-mentioned belt (VIII), which can be fitted around the user's waist or trunk comprising the first means of support (VIII.1) for the elastic fixation strap (VII) of the ellipsoidal skeletal support wreath (II) peripherally to the user's neurocranium (IX), which first means of support (VIII.1) can immobilize the fixation strap in its final position on the above-mentioned belt (VIII) after achieving the optimal strap length,
• the two perpendicular girders (III) being composed of two parts, the tail-part (III.2), in the shape of a rounded cuboid on which the horizontal girder (IV) can be supported and adjusted, and the cranial-part (III.1), cylindrical in shape, with diameter from 5 to 8 mm, which forms an angle of 160-180 degrees to the tail-part (III.2),
• the two perpendicular girders (III) forming an angle inwards from 0 to 20 degrees in their tail-part (III.2), depending on the shape of the user's face,
• the distance between the two parallel legs of the horizontal girder (IV), U-shaped and of telescopic type, varying and being stabilized in a specific position by means of support (IV.4), according to the width of the user's face (transverse plane), said two parallel legs achieving such an inward or outward position (sagittal plane) in the slots (III.3) of the perpendicular girders (III), optimizing the tension of the elastic tractions in the user's maxilla without affecting in the slightest the position of the perpendicular girders (III).