Composite type intraoperative stent system and using method thereof

Abstract

The invention provides a composite type intraoperative stent system which comprises an artificial vessel capable of being anastomosed, a linear control released left subclavian artery covered stent vessel and a balloon-expandable type descending aorta covered stent artificial vessel; the artificial vessel is connected with the balloon-expandable type descending aorta covered stent artificial vessel; the left subclavian artery covered stent vessel is arranged at the connecting part of the artificial vessel and the balloon-expandable type descending aorta covered stent artificial vessel and communicates with the artificial vessel and the balloon-expandable type descending aorta covered stent artificial vessel; and the balloon-expandable type descending aorta covered stent artificial vessel is internally provided with a balloon. The composite type intraoperative stent system can shorten the operation time, reduces influence of deep hypothermic circulatory arrest on the coagulation function of a patient, lowers the difficulties of vascular anatomy and anastomosis and increase the success rate of an operation.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a composite intraoperative stent system and its application method. Background technique [0002] Type I aortic dissection or ascending aorta and aortic arch aneurysm is still one of the most complicated and risky diseases in the field of cardiovascular surgery. The mortality rate of type I aortic dissection is extremely high. From the onset to the first 48 hours, the mortality rate increases by 1% for every additional hour. Without surgical treatment, the mortality rate within 3 months is as high as 99%. The mortality rate of ascending aorta and aortic arch aneurysm rupture is close to 100%. The current standard method for dealing with such diseases is Sun's surgery (ie aortic root + arch artificial vessel replacement + descending aortic elephant trunk implantation). [0003] At present, when patients with type I aortic dissection undergo Sun's surgery, deep hypothermic circu...

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Problems solved by technology

[0003] At present, when patients with type I aortic dissection undergo Sun's surgery, deep hypothermic circulatory arrest is required to replace the aortic arch and place elephant trunk stents in the descending aorta. The Sun's surgery takes a long time and requires high requirements for anatomy and anastomosis. In addition, deep hypothermic circulatory arrest has a great impact on the coagulation mechanism of patients, and postoperative patients often die due to anastomotic bleeding or wound bleeding

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