Apparatus and method for submergible, self-retaining zygoma dist

Details Apparatus and method for submergible, self-retaining zygoma dist Apparatus and method for submergible, self-retaining zygoma dist

1998-01-13

1998-09-15

Buiz, Michael Powell

Surgery

Instruments

Orthopedic instrumentation

606 71, 606105, A61B 1766

Patent

active

058073825

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 allen 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.

REFERENCES:
patent: 3900025 (1975-08-01), Barnes, Jr.
patent: 5364396 (1994-11-01), Robinson et al.
patent: 5540687 (1996-07-01), Fairley et al.

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