Intervertebral spacer device having a multi-pronged domed spring
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United States of America Patent
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-
Nov 11, 2003
Issued Date -
N/A
app pub date -
Nov 9, 2001
filing date -
Oct 18, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intervertebral spacer device having a pair of opposing plates for seating against opposing vertebral bone surfaces, separated by a spring mechanism. The preferred spring mechanism is a multi-pronged domed spring which is coupled to the upper plate by set screws. The spring includes a socket formed in the peak thereof and mounts onto a ball-shaped head extending outwardly from the lower plate. The spring and post members are thereby flexibly coupled such that the upper and lower plates may rotate relative to one another.
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