Prosthesis of anterior spinal column, instrument guiding the prosthesis and method for installation thereof

摘要

A prosthesis of an anterior spinal column, comprising a perforated sleeve body (1) with at least one anchoring element, teeth and overgrowth holes and a positioner (2) situated within the body (1). The body (1) has in its wall at least one manipulative hole (6) and at least one positioning hole (7), whose longitudinal axes are parallel with each other. The positioner (2) comprises at least one situating element (8) cooperating with at least one positioning hole (7) of the body (1) and at least one hole (12) formed therethrough, which may be situated radially inward relative to the manipulative hole (6). At least one end face (3) of the body (1) or/and body's wall are provided with at least one pair of opposite guidelines (14,20). For introducing the prosthesis into the intervertebral space, a guiding instrument is used in the form of a rod with a shaped working element (24) at one end. The prosthesis may be implanted with the use of the prosthesis guiding instrument.

主权项

1. A prosthesis of an anterior spinal column comprising:
a hollow perforated sleeve body having a wall formed about a longitudinal axis thereof and opposing end faces, wherein the body (1) is provided with overgrowth holes formed through the wall thereof and at least one anchoring element and teeth on each end face of the body (1), wherein the body (1) has in its wall at least one elongated manipulative hole (6) formed therethrough and at least one positioning hole (7), whose longitudinal axis is parallel relative to a longitudinal axis of the manipulative hole (6); and a positioner (2) situated within the body (1) having a wall with overgrowth holes (13) formed therein, at least one situating element (8) cooperating with the body's (1) positioning hole (7), and at least one hole (12) formed through the wall of the positioner (2), wherein the positioner (2) is slidable longitudinally along the longitudinal axis of the body (1), wherein the hole (12) is situated radially inward relative to the manipulative hole (6), wherein a portion of the positioner (2) is configured to engage with a portion of the body (1) in a manner to prevent the positioner (2) from extending outward past the end faces of the body and a total length of the prosthesis remains constant while the positioner (2) slides longitudinally within the body (1).