| 摘要 |
Devices, systems and surgical methods for achieving surgical access to a site within the body, particularly the spine. The system includes a modular retractor with a body and hood that are independently operable at their proximal ends to manipulate soft tissue at their distal ends, and may be adjustably and releasably coupled to form an open channel to a target tissue. On insertion, the hood is at least partially compressed against the retractor body. When coupled, the retractors are displaced from one another and constrained to one or more of at least three degrees of freedom, movable pivotally around a proximal end pivot axis that is perpendicular to the channel to adjust displacement of the retractors at their distal ends, displaceable vertically to adjust the distance between the retractors at their proximal ends, and slidable horizontally along the channel axis. |
