JY231(Internal Clinical Drug Code) Injection for the Treatment of Refractory Autoimmune Diseases

Infusion of JY231 Injection by dose of 1-10×10\^6 TU/kg、 1-5×10\^7 TU/kg、5-10 ×10\^7 TU/kg Administration method: intravenous infusion、Splenic artery infusion、Lymph node infusion; Subjects will be treated with Fludarabine and Cyclophosphamide before cell infusion (PI evaluation is required)