Perfusion flow guide device for avoiding deep hypothermic circulatory arrest in aortic total arch replacement

Abstract

The utility model discloses a perfusion flow guide device for avoiding deep hypothermic circulatory arrest in aortic total arch replacement, and belongs to the technical field of surgical medical instruments. Blood flow diversion from an aorta descendens to an aortic arch upper branch is carried out, the technical scheme is as follows: a main balloon is adopted to surround the outer wall of a mainflow guide pipe; the main balloon is connected with a main balloon air inlet pipe; the main flow guide pipe is connected with three branch flow guide pipes, the three branch flow guide pipes are respectively surrounded by branch balloons, the three branch balloons are respectively connected with branch balloon air inlet pipes, branch flow guide blocking clamps are respectively arranged on the three branch flow guide pipes, and the air inlet ends of the main balloon air inlet pipe and the branch balloon air inlet pipes are respectively connected with an external air delivery pipe. The three branch flow guide pipes with blocking balloons and suction devices are creatively applied to aortic total arch replacement, blood supply to the brain and the lower body is kept during far-end aorta anastomotic stoma suture, accordingly, deep hypothermic circulatory arrest is avoided, postoperative complications are greatly reduced, and the operation effect is improved.

Description

technical field [0001] The invention relates to a diversion device for shunting blood from the descending aorta to the upper branch of the aortic arch during a total aortic arch replacement operation, and belongs to the technical field of surgical medical instruments. Background technique [0002] Diseases such as thoracic aortic aneurysm and acute and chronic type A aortic dissection are major diseases in cardiac surgery, and artificial blood vessels are often required to replace the aortic arch. Total aortic arch replacement plus stent elephant trunk surgery is regarded as an important operation to solve this problem. Mode. At present, deep hypothermia and circulatory arrest must be used for the implementation of this operation, that is, the whole body needs to be cooled during the operation. When the temperature of the nasopharynx drops to 18-20°C, unilateral selective cerebral perfusion can be performed through the axillary artery or innominate artery. Relatively insuff...

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Problems solved by technology

However, not all doctors are able to complete this operation with high quality within 20 to 30 minutes. If the suture quality of the distal anastomosis is poor, there will be a large amount of bleeding or even death after the operation.

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