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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0439868 (1995-05-12) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 5 |
A device for applying a force to an orthodontic apparatus in such a manner as to allow a patient or his orthodontist to adjust the force and for recording the force as a function of the time the apparatus is actually worn. In the device, two similar compression springs are arrayed in parallel with o
A system comprising: (a) means, including at least one spring biased in compression, for applying extraoral force; (b) means for measuring magnitude of the extraoral force and for measuring time during which the extraoral force is applied, the measuring means including an elongated magnet which move
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