Spring-loaded dynamic pedicle screw assembly

Details Spring-loaded dynamic pedicle screw assembly Spring-loaded dynamic pedicle screw assembly

2011-06-28

2011-06-28

Robert, Eduardo C (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

C606S267000, C606S270000, C606S306000

Reexamination Certificate

active

07967848

ABSTRACT:
An assembly that includes a fixator component, a clamping mechanism, a screw head, a load sharing mechanism, and a blocker. The fixator component further includes a bulbous end, a neck portion, and a threaded end. The clamping mechanism is positioned around the neck portion of the fixator component. The load sharing mechanism is positioned in between the screw head and the bone fixator component. The screw head further includes a pair of diametrically opposed arms, a socket and a slot. The socket is positioned between the pair of arms and the slot is positioned above the socket. The socket is dimensioned and configured to house the bulbous end of the fixator component. The load sharing mechanism provides tensile resistance to the screw head and the blocker is adapted to engage the screw head.

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patent: 2005/0277928 (2005-12-01), Boschert
patent: 2007/0093832 (2007-04-01), Abdelgany
patent: 2010/0137911 (2010-06-01), Dant

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