Femoral artery intubation tube of perfusion-free ischemia area during extracorporeal circulation period and application thereof

Abstract

The invention relates to a femoral artery intubation tube of a perfusion-free ischemia area during an extracorporeal circulation period and the application thereof. The femoral artery intubation tube comprises an intubation tube main body which is arranged at a blood supply end. The femoral artery intubation tube is characterized by also comprising a proximal end tube and a distal end tube which are communicated with the intubation tube main body, wherein the flow division and pressure division effect is achieved through the proximal end tube and the distal end tube; the proximal end tube and the distal end tube form an extracorporeal circulation perfusion tube of a T-shaped or Y-shaped integral structure; an included angle is formed between the proximal end tube of the Y-shaped perfusion tube and the intubation tube main body which is arranged at the blood supply end so as to distribute or regulate the perfusion blood flow. The femoral artery intubation tube of the perfusion-free ischemia area during the extracorporeal circulation period is applied to the femoral artery and is particularly suitable for long operation time of patients, the near end and far end perfusion of the femoral artery can be simultaneously ensured, and the lower limb ischemia caused by existing intubation tube is avoided; the defects of the existing arterial intubation tube and method are overcome, the requirements of the whole body perfusion of the perfusion-free ischemia area during the extracorporeal circulation period can be met, the distribution or regulation of the perfusion blood flow can be implemented, the perfusion pressure is not easy to rise, the blood leakage is not easy to cause, and the blood damage is small; the operation is convenient, the fixation is easy and reliable, the shifting is not easy to cause, and the application to the blood supply perfusion operation is wide.

Description

[0001] technology field. [0002] The invention relates to the field of medical devices, in particular to a femoral artery cannula without perfusing ischemic regions during extracorporeal circulation and its application. Background technique [0003] The prior art usually uses a straight cannula with a length of 20 cm, one end of which is connected to the arterial perfusion tube of the artificial heart-lung machine, and the other end is inserted into the femoral artery as the extracorporeal circulation arterial perfusion tube. However, the disadvantage of straight intubation is that the lower limbs lack arterial blood supply during cardiopulmonary bypass, which can easily lead to lower limb ischemia and metabolic disorders, especially for patients with relatively long operation time. Contents of the invention [0004] The object of the present invention is to provide a femoral artery cannula and its application without perfusing the ischemic region during extracorporeal circ...

AI Technical Summary

Problems solved by technology

However, the disadvantage of straight intubation is that the lower limbs lack arterial blood supply during extracorporeal circulation, which can easily lead to lower limb ischemia and metabolic disorders, especially for patients with relatively long operation time.

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