Posterior spinal retraction instrument Set

The universal arm employs a linkage and universal joint design, enabling triaxial and two universal joint-based locking after tightening; it boasts a stable structure, excellent locking effect, and low failure rate. The blade opening angle is increased to 30 degrees; combined with a puller screwdriver, the retractor interface and blade are securely locked; the ratchet structure, used with a three-dimensional retractor wrench, provides strong opening force with no rebound; the addition of an inner puller hook further expands the surgical field by retracting muscle tissue.