Antegrade aorta infusion tube having internal blocking function, application and usage method

Abstract

The invention discloses an antegrade aorta infusion tube having an internal blocking function, application and a usage method. The antegrade aorta infusion tube comprises a blocking balloon, a liquid injecting catheter and an infusion tube body, wherein the infusion tube body penetrates through the blocking balloon and is in sealed and fixed connection with the blocking balloon, the liquid injecting catheter is in sealed and fixed connection with the blocking balloon, and one end of the liquid injecting catheter is communicated with the blocking balloon. In a Sun's procedure for treating a Stanford type-A aortic dissection, on one hand, blood circulation in the descending aorta is blocked through an infusion balloon to obtain a clean operating field; on the other side, blood infusion is conducted on the lower half body by combining the liquid injecting catheter with an extracorporeal circulation device while the descending aorta is blocked. Therefore, the body temperature of a patient is not needed to be reduced to be too low, and accordingly the internal organ functions and coagulation functions of the patient are well protected. The antegrade aorta infusion tube further simplifies an operating method, improves the operating safety and improves the overall treating effect.

Description

technical field [0001] The invention relates to a medical device, especially an antegrade aortic perfusion tube with internal blocking function, application and usage method. Background technique [0002] Total aortic arch replacement + stented elephant trunk (Sun's procedure) is a classic procedure for the treatment of Stanford type A aortic dissection. During the operation, hypothermic circulatory arrest technique needs to be applied, which will inevitably result in a period of time when the blood in the lower body stops flowing (depending on the experience of the surgeon, it may range from 15 to 30 minutes). During this period, the spinal cord, kidneys, liver, gastrointestinal tract and other organs may be damaged by ischemia and hypoxia, which is detrimental to the recovery of patients after surgery. In order to prolong the safe time limit of circulatory arrest, doctors often need to lower the patient's body temperature to a minimum of 18 degrees Celsius, but the conseq...

AI Technical Summary

Problems solved by technology

During this period, the spinal cord, kidneys, liver, gastrointestinal tract and other organs may be damaged by ischemia and hypoxia, which is not conducive to the recovery of patients after surgery.

In order to prolong the safety time limit of circulatory arrest, doctors often need to lower the patient's body temperature to a minimum of 18 degrees Celsius, but the consequence of doing so is to have adverse effects on blood coagulation function, resulting in increased postoperative bleeding and difficulty in hemostasis

[0003] Since the currently applied surgical method cannot be performed with blood circulation in the lower body, the bleeding tendency caused by ischemia of vital organs of the lower body + low temperature is the main problem of the operation, which prevents the operation from being promoted to more grass-roots units to save more patients s life

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