Covered stent system
A technology of covered stents and metal stents, which is applied in the field of medical devices, can solve problems such as increasing the difficulty of surgical operations, and achieve the effects of avoiding related complications, facilitating accurate positioning, and ensuring blood perfusion
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Embodiment 1
[0075] This embodiment provides a stent-graft system for treating abdominal aortic aneurysm A involving celiac trunk artery A1, superior mesenteric artery A2, and renal artery A3 (see Figure 4 ). like image 3 , Figure 5 As shown, the stent-graft 100 includes a proximal stent-graft 100a, an intermediate stent-graft 100b and a distal-end stent-graft 100c connected in sequence, and the intermediate stent-graft 100b has the smallest inner diameter; the proximal-end stent-graft 100a and the intermediate stent-graft The two first windows at the junction of the stent 100b are respectively installed with first embedded branches 140 in the axial direction, and the two second windows at the junction of the intermediate stent-graft 100b and the distal stent-graft 100c are respectively installed with the first embedded branch 140 . The two embedded branches 150, the two first windows are circumferentially distributed side by side on the same side of the stent graft 100, and the dista...
Embodiment 2
[0079] This embodiment provides a stent-graft system for treating abdominal aortic aneurysm A involving celiac trunk artery A1, superior mesenteric artery A2, and renal artery A3 (see Figure 4 ). like Figure 11 As shown, the stent-graft 100 sequentially includes a proximal-end stent-graft 100a, an intermediate stent-graft 100b and a distal-end stent-graft 100c from the proximal end to the distal end, and the inner diameter of the intermediate stent-graft 100b is the smallest; Figure 10As shown, the two first windows at the junction of the proximal stent-graft 100a and the intermediate stent-graft 100b are respectively installed with first embedded branches 140 in the axial direction, the intermediate stent-graft 100b and the distal stent-graft 100c The two second windows at the junction of the two second windows are respectively installed with second embedded branches 150. The distance between the two first windows in the axial direction of the stent graft 100 is 8 mm and ...
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