| 摘要 |
Apparatus for the alleviation of sleep apnoea in which dentition engagement units or dental overlays shaped to engage the maxillary and mandibular dentition of a subject each having a laterally located pair of flanges the ends of which almost abut, magnets embedded in said flanges with their like poles adjacent or sinusoidally-shaped extension elements made from shape-memory material having a transition temperature equal to or slightly less than normal body temperature and accommodated in cavities in said flanges provide, respectively, a magnetic repulsion force or expansive force when warmed by body heat sufficient, during sleep-induced relaxation, to displace said mandibular dentition engagement unit or dental overlay forwardly in relation to said maxillary dentition engagement unit, displacing the mandible of the subject and thereby effecting a displacement of the temporomandibular joint. |
| 主权项 |
1. An apparatus for alleviating sleep apnea, comprising:
a maxillary dentition engagement unit or dental overlay shaped to fit a first dental arch of a subject; a mandibular dentition engagement unit or dental overlay shaped to fit a second dental arch of the subject; a first flat face disposed on the maxillary dentition engagement unit or dental overlay that is configured to engage a maxillary dentition of the subject; a second flat face disposed on the mandibular dentition engagement unit or dental overlay that is configured to engage a mandibular dentition of the subject, wherein the second flat face is configured to cooperate in sliding abutment with the first flat face; a first laterally located pair of flanges formed integrally with or fixed to the maxillary dentition engagement unit or dental overlay; a second laterally located pair of flanges formed integrally with or fixed to the mandibular dentition engagement unit or dental overlay,
wherein the first laterally located pair of flanges comprises a first flange and a second flange,wherein the second laterally located pair of flanges comprises a third flange that complements the first flange and a fourth flange that complements the second flange,wherein one end of the first flange almost abuts one end of the third flange,wherein one end of the second flange almost abuts one end of the fourth flange,wherein each of the first, second, third and fourth flanges is elongated, smoothly shaped, and positioned such that an elongated, fully encapsulated magnet having a longitudinal axis is embedded therein, andwherein the longitudinal axes of the magnets embedded in adjacent flanges are substantially collinearly arranged and with like poles adjacent and almost abutting to provide a magnetically repulsive force, wherein during a state of sleep-induced relaxation of the subject the magnetically repulsive force is sufficient to displace the mandibular dentition engagement unit or dental overlay forwardly in relation to the maxillary dentition engagement unit or dental overlay to forwardly displace a mandible of the subject, open a temporomandibular joint, and reduce a possibility of an airway obstruction; sprung pawls provided on one of the mandibular or maxillary dentition engagement units or dental overlays; and engaging detents provided in the other of the mandibular or maxillary dentition engagement units or dental overlays, wherein the sprung pawls and the engaging detents retain the mandibular and maxillary dentition engagement units or dental overlays in a fully engaged position without impeding advancement of the mandibular dentition engagement unit or dental overlay in relation to the maxillary dentition engagement unit or dental overlay. |
