Aortic Arch Intraoperative Stent and Manufacturing Method Thereof

摘要

The present invention provides an aortic arch intraoperative stent, wherein the aortic arch intraoperative stent comprising a main body (17) and one to three branches (5, 6, 7), The aortic arch intraoperative stent connects several circular waveform rings together via a cover membrane (25) to form the main body (17) and the branches (5, 6, 7), wherein each circular waveform ring comprises a circular elastic wire formed through head-to-tail connection. In addition, the present invention also provides a manufacturing method for the aortic arch intraoperative stent, comprising the following steps of: providing a cover membrane mandrel (40); making an inner membrane; assembling circular waveform rings; making an outer membrane; suturing a proximal fabric (12); and suturing a distal fabric (13). The aortic arch intraoperative stent can automatically adapt to the vascular structure near the aortic arch of different patients, and the main body (17) in the aortic arch intraoperative stent maintains a sufficient radial support for the branches, thereby ensuring that the branches on the aortic arch intraoperative stent may safely enter branch vessels during surgery, and preventing the branches from slipping out of the corresponding branch vessels during and after surgery at the same time.

主权项

1. An aortic arch intraoperative stent, comprising a main body and one to three branches coupled to the main body, characterized in that the main body comprises self-expanding second circular waveform rings corresponding to one to three branches, and each branch comprises at least one self-expanding third circular waveform ring; an intersecting line of each branch and the main body is overlapped with at least one part of a region where the second circular waveform ring corresponding to the branch is located; the aortic arch intraoperative stent further comprises a cover membrane for connecting together all the second circular waveform rings and the third circular waveform rings.