Device for the distraction of bones

Details Device for the distraction of bones Device for the distraction of bones

1994-05-19

1996-07-30

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 90, 606105, 606 57, A61B 1768, A61B 1760

Patent

active

055406874

ABSTRACT:
This invention relates to a device for the gradual distraction of bones, to be used especially in craniofacial dysostoses with early stenosis of the cranial sutures, comprising an internally threaded first sleeve intermeshing with an externally threaded spindle, which has an activating point. The spindle consists of an anterior extension, which slides into a second, unthreaded sleeve and rotates freely therein. The first sleeve is fitted with the first mounting plate, which rotates and features bore holes for the fixation via mini-screws to bone. The second sleeve embracing the spindle, is furnished with the holding elements for attachment in or to the bone.

REFERENCES:
patent: 4312336 (1982-01-01), Danieletto et al.
patent: 4931055 (1990-06-01), Bumpus et al.
patent: 5154718 (1992-10-01), Cozad et al.
patent: 5364396 (1994-11-01), Robinson et al.

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