hBMSC Uterine Artery Infusion for Severe IUA-Related Infertility

"Interventional Uterine Artery Infusion of Human Bone Marrow Mesenchymal Stem Cells (hBMSCs):~Subjects in the experimental group will undergo iodine allergy testing and groin area shaving/disinfection preoperatively. The procedure is performed on Day 10 of the endometrial proliferation phase.~Step-by-Step Procedure:~1. Positioning \& Anesthesia: (Patient placed in supine position; Local infiltration anesthesia administered)~2. Arterial Access: (Femoral artery punctured using Seldinger technique; Vascular sheath and catheter inserted)~3. Catheterization: (Catheter/microcatheter advanced into one uterine artery; Position confirmed by angiography)~4. Stem Cell Infusion: (Under fluoroscopic guidance, slowly inject 15mL solution containing 1×10⁶ cells/kg hBMSCs via microcatheter)~5. Postoperative Care: (Hospital observation for 48 hours)~6. Concurrent Treatment: (Hormone replacement therapy cycle maintained during the procedure month)~Treatment Frequency: Single intervention"