Aortic intravascular stent

Abstract

The invention discloses an aortic vascular stent, comprising a flexible, telescopic and adjustable stent body extending axially conically into a tubular frame. , and a flexible and telescopic sub-support located in the middle of the support body, the main pipe frame includes a number of support rings distributed along the axial direction and gradually reduced or expanded, and the main pipe frame is covered with a film on the support ring. The sub-bracket includes a mesh body axially connected to the main-pipe frame. The aortic vascular stent can be adapted to the ascending aorta and the aortic arch to meet the endoluminal treatment of TADD. It has good flexibility, excellent torque adjustment ability, and can closely fit the torn intima of the ascending aorta and the aortic arch. Avoid covering the supraarch vessels at the corresponding aortic arch, which has a very good medical effect.

Description

technical field [0001] The invention relates to a medical device, in particular to an aortic stent. Background technique [0002] Stanford type A aortic dissection (type A aortic dissection, TAAD) is a serious cardiovascular emergency that requires emergency surgical intervention. Compared with traditional open surgery, the current trend of endovascular treatment can reduce the trauma of the human body and reduce the risk of mortality and a better prognosis. Endovascular therapy has become the first choice for the treatment of many complex large vessel lesions, but at present, this kind of endovascular therapy has only accumulated experience in the treatment of Stanford type B aortic dissection (type B aortic dissection, TBAD), involving the ascending aorta and aortic arch. TAAD has not yet developed an applicable stent for endovascular treatment. The main reason is that there are several important branch vessels supplying the brain on the aortic arch. It can only be appli...

AI Technical Summary

Problems solved by technology

Endovascular therapy has become the first choice for the treatment of many complex large vessel lesions, but at present, this kind of endovascular therapy has only accumulated experience in the treatment of Stanford type B aortic dissection (type B aortic dissection, TBAD), involving the ascending aorta and aortic arch. TAAD has not yet developed an applicable stent for endovascular treatment. The main reason is that there are several important branch vessels supplying the brain on the aortic arch. It can only be used in TBAD without supra-arch vascular branches or some ascending aorta, and cannot be used in dissection diseases involving the aortic arch, so endovascular treatment of TAAD cannot be realized

Images