Surgery – Instruments – Orthopedic instrumentation
Patent
1996-10-16
1998-06-23
Buiz, Michael
Surgery
Instruments
Orthopedic instrumentation
606 60, 606 69, 606 71, 606105, 606102, 606 73, A61B 1756
Patent
active
057698503
ABSTRACT:
An apparatus and method for submergible self-retaining distraction osteogenesis is provided. Distraction osteogenesis devices are submerged below a layer of tissue and/or skin layers and are activated based upon maximum pressures, rather than constant activation rates. Distraction osteogenesis devices are also self-retaining in that the force in displacing bone segments is transferred substantially through metal plates, rather than screws or fixation points. In particular, zygomatic, alveolar and mandibular distraction osteogenesis devices are provided. The zygomatic and alveolar distraction osteogenesis devices include a submergible first and second metal plate along with a threaded rod. The zygomatic and alveolar distraction osteogenesis devices are activated using a cannula, torque wrench adapter and torque wrench. The mandibular distraction osteogenesis device includes a palate expander having a plurality of rods used in coupling first and second self-retaining U-shaped plates. The mandibular distraction osteogenesis device is activated using an alien wrench. In order to allow for maximum bone growth and/or distraction, a maximum pressure between bone segments is applied by a torque or allen wrench.
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Buiz Michael
Reip David O.
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