Fixation device for the external adjusting of bone fragments
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United States of America Patent
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-
Jun 25, 1991
Grant Date -
N/A
app pub date -
Nov 3, 1988
filing date -
Nov 5, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a fixation device for externally adjusting bone fragments. A pair of members anchored to the bone fragments are connected to each other to allow a longitudinal displacement of the fixing unit. According to the invention the connection of the members is defined by a hinge configuration which allows guiding and aligning both members when the fixing unit is released for stimulating the healing process. A bracket is mounted on a parallelogram hinge to generate a pressure or, respectively, a tension force to move the bone fragments apart or draw them together. According to the invention the hinge configuration comprises telescopic members centered by spring means.
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