Objective To explore the effect of the application of disposable hard covering external catheter in introtracheal infusion of pulmonary surfactant(PS) for newborns.

Multiple usages of disposable anesthesia epidural catheter in operation room;

Relationship between efficacy of the epidural anesthesia for hysterectomy with the unblocked degree of epidural catheter

Objective:To discussion the clinical usage to direct the epidural catheter toward the operative side in old patients undergoing surgery on lower body.

Acute hemorrhagic necrotizing pancreatitis animal model was induced by injection of 5% sodium deoxycholate through retrogradely common biliopancreatic ducts via papilla duodeni with epidural catheter,closed puncture hole with medical sealant glue.

Canaliculoplasty supported by epidural tube in 37 cases;

[Objective] To compare the clinical efficacy of cerebrospinal fluid (CSF) exchange for subarachnoid hemorrhage (SAH) with playing deep vein catheter or epidural tube into subarachnoid.