1、Product introduction：Products consist of expandable channel、brace sleeve gradually、Channel open pliers、pressure pliers、and channel fixed arm. The system can gradually separate the muscle fibers by inserting them through a small incision, forming appropriate size of channel access to the surgical area, and providing visual field exposure for surgical procedures. All operations of conventional open surgery can be completed in this space.

2、Indications: For the establishment of lumbar posterior surgical access.

3、Clinical advantage of product：The product component is easy to use. The advantages include minimizing tissue damage，maximum operating field of view，and short-term learning curve. what's more，the product can avoid that X-ray exposure and the organization enters into the surgical field. Doctors can quickly carry out minimally invasive spinal surgery with this system.