A Clinical Trial to Evaluate the Safety and Efficacy of Single-use Fibrous Ring Sutures for the Suture of Fibrous Ring Incision After Nucleus Pulposus Removal

Exclusion Criteria

• •1. Laboratory examination (blood routine examination, blood biochemistry, coagulation function and blood pregnancy, etc.), imaging examination (MRI) and vital signs examination have abnormal results with clinical significance, and the researchers believe that they are not suitable for inclusion;
• •2. Active local or systemic infection;
• •3. Patients with lumbar tumors and/or spinal malformations;
• •4. Imaging showed calcification of the posterior longitudinal ligament;
• •5. A history of serious diseases of important organs (such as cardiovascular system, liver, lung, kidney and nervous system);
• •6. There are autoimmune diseases or abnormal coagulation function;
• •7. Previous or planned surgical procedures to fuse or stabilize the lumbar spine during the trial;
• •8. Intraoperative exploration of the location of the annulus fibriatus could not satisfy the requirement that the needle entry point was more than 2mm away from the margin of the annulus fibriatus;
• •9. Pregnant or lactating women, or those who have a pregnancy plan during the trial period;
• •10. Those who are participating in other clinical trials at the same time;
• •11. Other situations that the researcher considers inappropriate to participate in this study.