Patent ID: 7942909

Claim:
A thread-thru pedicle screw system comprising: an anchoring member having a threaded shank and a spherical connector; a connecting assembly defined by a lower connector member coupled to an upper connector member, said lower connector member having a threaded aperture sized to allow only said threaded shank of said anchoring member to pass through and a socket for receipt of said spherical connector, said upper connector member having an opening for receipt of a connecting rod member and a bottom with at least one spring pocket formed therein; a retainer ring disposed between said lower connector member and said upper connector member, said retainer ring having a lower spherical surface positionable along an upper surface of said spherical connector; at least one biasing member having a first end positionable in said spring pocket of said upper connector member and a second end cooperating with an upper surface of said retainer ring, said biasing member positioned between said retainer ring and said upper connector member; and a fastener element securable to said upper connector member for engaging of said connecting rod member; wherein said connecting rod member is placed in said opening of said upper connector member and said fastener element is secured thereto for engaging the connecting rod member which engages said retainer ring whereby said retainer ring locks said connecting assembly in a fixed position in relation to said anchoring member.