ROTARY DEVICE FOR RETRIEVING SPINAL COLUMN UNDER TREATMENT
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United States of America Patent
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May 24, 2005
Grant Date -
Jun 16, 2005
app pub date -
Jun 8, 2004
filing date -
Dec 11, 2003
priority date (Note) -
Granted
status (Latency Note)
Importance
Abstract
A vertebral retrieval device includes a retrieval rod which is gripped firmly in a receiving slot of a fixation seat between two grooves of a pressing element and a C-shaped ring. The C-shaped ring rests on a spherical head fastening screw, a spherical head of which is received in the fixation seat and a shank of which is protruding from a through hole provided in a bottom of the fixation seat. The pressing element is pressed against the retrieval rod by a pressing screw, which is threaded into a threaded hole formed in a fixation element mounted in the receiving slot of the fixation seat.
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