SPINAL IMPLANT LOCKING MEMBER WITH IMPROVED GUIDANCE, TACTILE AND VISUAL FEEDBACK

摘要

An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.

主权项

1. An implant comprising:
a receiver having at least one internal wall defining a bore adapted to receive a polyaxial screw, at least a portion of said receiver having a receiver thread, said receiver further comprising a rod-receiving channel in communication with said bore, said rod-receiving channel being adapted to receive a rod; and a cap having a cap thread for mating with said receiver thread to permit said cap to be screwed on said receiver in order to lock said rod in said rod-receiving channel of said receiver; wherein said cap comprises a deformable area, said deformable area engaging said rod and deforming on it after said rod is received in said receiver and said cap is rotated and screwed on said receiver.