发明名称 CONSTANT TENSION ORTHODONTIC APPLIANCE
摘要 Apparatus to aid in the orthodontic or orthopedic correction of dental-facial malformations. The apparatus includes a harness connected to an orthodontic or orthopedic appliance and applies a predetermined constant force in a prescribed direction. The force applied to the appliance is substantially constant regardless of the vertical and lateral movement of the head of the wearer relative to the harness or as the desired displacement of the dental-facial structures occur.
申请公布号 US3686757(A) 申请公布日期 1972.08.29
申请号 USD3686757 申请日期 1970.12.09
申请人 JACK C. MCVICKERS;EUGENE A. LEATHERMAN 发明人 JACK C. MCVICKERS;EUGENE A. LEATHERMAN
分类号 A61C7/06;(IPC1-7):A61C7/00 主分类号 A61C7/06
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