Stent graft system

Abstract

The stent graft system in accordance with the present invention has a trunk, a left subclavian tube, a left common carotid tube and a brachiocephalic tube. The trunk is tubular and expandable and has a descending end, an ascending end, a left subclavian mount, a left common carotid mount and a brachiocephalic mount, for receiving the aforementioned branch tubes that are elastic and self-expandable for respectively connecting the left subclavian artery, the left common carotid artery and the brachiocephalic artery to the trunk. With the above-described structure, the present invention allows fast determination of a suitable trunk and branch tubes for a patient and allows a medical institute to prepare compatible branch tubes and trunks for a composite stent graft system instead of numerous stent grafts of various combinations of differently sized tubular bodies and branches, wherein the former requires significantly less warehousing cost than the latter.

Description

technical field [0001] The present invention relates to a modular stent vascular system, in particular to a combined modular stent vascular system. Background technique [0002] Such as Figure 11 As shown, the first existing stent vessel body is used to provide aortic arch (Aortic arch) surgery to support the inner surface of the aortic arch, as a treatment for aortic dissection or aortic aneurysm, which includes a tubular body 91, a left Subclavian branch 911 , a left cervical common branch 912 and a brachial branch 913 . [0003] The body 91 is made of a self-expandable elastic material provided with an expandable stent, and has two ends 914, 915 for connecting to the aorta. When the two ends 914, 915 of the body 91 are attached to the aortic arch, they will self-expand to abut against the inner surface of these parts of the aorta. An expansion stent is provided near one end 915 to connect the carcass 91 to the ascending aorta through the expansion stent. However, the ...

AI Technical Summary

Problems solved by technology

However, the unacceptably expensive cost of custom-made stent blood vessel bodies has become another obvious shortcoming of custom-made stent blood vessel bodies

Moreover, clinically speaking, the more obvious disadvantage of custom-made stent vessels is that it is difficult to provide immediate surgical use, especially emergency surgical use. For example, aortic dissection is an emergency surgery that often occurs in emergency situations.

[0008] The structural characteristics of the existing stent vessel body also make doctors who perform operations such as acute aortic dissection or aortic aneurysm rupture need to spend considerable time selecting the stent vessel body before or even during the operation, or Make a stent vessel that conforms to the patient's anatomical structure so that the carcass 91, 92 and all branch tubes 911-913, 921-923 can match the patient's aorta and branch arteries, but this will add a lot of additional operation time, And increase the uncertainty of the surgical process, thereby affecting the surgical results

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