Design of interlocking-style vascular shunt device and its in vitro experiment / 医疗卫生装备

Objective To develop an interlocking-style vascular shunt device for the treatment of distal limb ischemia resulting from vascular disconnection and defect.Methods A one-way interlocking buckle was designed with the space between the clamping teeth being 0.5 mm,which prevented the device from moving backwards and fixed the vessel and shunt tube conveniently.The interlocking buckle combined with silicone tube was used to connect the two ends of the defected vessel,which was compared with conventional method by suture ligation and silicone tube by the tests on vessel bursting pressure and tensile biomechanics.Results The vessel repaired with the developed device behaved better than that by the conventional method in the tests on vessel bursting pressure and tensile biomechanics (P＜0.05).Conclusion The vascular shunt device can be used for the treatment of distal limb ischemia resulting from vascular disconnection and defect,and thus facilitates the vascular graft in rear hospital after evacuation.

In vivo experiment on treatment of vascular disconnection and defect of extremities with interlocking vascular shunt device / 医疗卫生装备

Objective To execute in vivo experiment on the treatment of vascular disconnection and defect of the extremities with interlocking vascular shunt device.Methods An animal model with vascular disconnection and defect of the extremities was established.The shunt device and silicone tube were used to connect the two ends of the disconnected vessel,and then canalization and thrombosis by the device were compared with them by sutures and silicon tube.Results The shunt device combined with silicon tube gained the same canalization as that by sutures and silicon tube, while had significantly shorter operation time (P＜0.05).Conchusion The interlocking shunt device restores efficiently blood supply of vascular disconnection and defect of the extremities,and thus facilitates blood vessel grafting in rear hospitals.

In vivo experiment on treatment of vascular disconnection and defect of extremities with interlocking vascular shunt device / 医疗卫生装备

Objective To execute in vivo experiment on the treatment of vascular disconnection and defect of the extremities with interlocking vascular shunt device.Methods An animal model with vascular disconnection and defect of the extremities was established.The shunt device and silicone tube were used to connect the two ends of the disconnected vessel,and then canalization and thrombosis by the device were compared with them by sutures and silicon tube.Results The shunt device combined with silicon tube gained the same canalization as that by sutures and silicon tube, while had significantly shorter operation time (P＜0.05).Conchusion The interlocking shunt device restores efficiently blood supply of vascular disconnection and defect of the extremities,and thus facilitates blood vessel grafting in rear hospitals.

Complications after Vascular Disconnection around Gastroeso-phageal Junction in 100 Patients with Portal Hypertension / 第三军医大学学报

Vascular disconnection around the gastroesophageal junction in 100 patients with portal hypertension and gastroesophageal varices resulted in such complications as ascites,peritoneal infection,recurrent gastrointestinal bleeding,gastric perforation,ischemic gastric necrosis,hepatic failure,multiple organ failure,etc in 41 patients (with a operative morbility of 41%).9 cases out of the 41 died because of peritoneal sepsis,massive bleeding and hepatic or multiple organ failure.Multiple organ failure was the most common cause of death.Grade III liver function and improper perioperative management were the associated factors responsible for the operative complications and death in these patients.