Modular multibranch stent assembly methods

Abstract

A method of deploying a modular multibranch stent assembly. The method includes deploying a first modular stent device in an ascending aorta. The first modular stent device includes a main body, a bypass gate extending from the main body, and a bifurcated contra limb extending from the main body. The bifurcated contra limb includes a first distal limb and a second distal limb. The method further includes deploying a first bridging stent graft in the first distal limb and/or a second bridging stent graft in the second distal limb.

What is claimed is: 
     
         1 . A method of deploying a modular multibranch stent assembly, the method comprising:
 deploying a first modular stent device in an ascending aorta, the first modular stent device including a main body, a bypass gate extending from the main body, and a bifurcated contra limb extending from the main body, the bifurcated contra limb including a first distal limb and a second distal limb; and   deploying a first bridging stent graft in the first distal limb and/or a second bridging stent graft in the second distal limb.   
     
     
         2 . The method of  claim 1 , wherein the second deploying step includes deploying the first bridging stent graft in the first distal limb and the second bridging stent graft in the second distal limb. 
     
     
         3 . The method of  claim 2 , wherein the second deploying step includes deploying the first bridging stent in the first distal limb and a left common carotid artery. 
     
     
         4 . The method of  claim 2 , wherein the second deploying step includes deploying the second bridging stent graft in the second distal limb and a brachiocephalic artery. 
     
     
         5 . The method of  claim 2 , wherein the first bridging stent graft contacts the second bridging stent graft after the second deploying step. 
     
     
         6 . The method of  claim 2 , wherein the first bridging stent graft contacts the bypass gate after the second deploying step. 
     
     
         7 . The method of  claim 2 , wherein the bypass gate extends beyond a distal end of the bifurcated contra limb after the first deploying step. 
     
     
         8 . The method of  claim 1 , wherein the first distal limb is connected to the second distal limb at a septum. 
     
     
         9 . The method of  claim 1  further comprising deploying a tube graft in the bypass gate. 
     
     
         10 . The method of  claim 9  further comprising inserting a bypass between a left common carotid artery and a left subclavian artery. 
     
     
         11 . The method of  claim 1  further comprising deploying a second modular stent device in the bypass gate, the second modular stent device includes a main body, a bypass gate extending from the main body, and an artery branch extending from the main body. 
     
     
         12 . The method of  claim 11 , wherein the main body of the second modular stent device is located within the bypass gate after the third deploying step. 
     
     
         13 . The method of  claim 11  further comprising deploying a third bridging stent in the artery branch of the second modular stent device. 
     
     
         14 . The method of  claim 13 , wherein the fourth deploying step includes deploying the third bridging stent in a left subclavian artery. 
     
     
         15 . A method of deploying a modular multibranch stent assembly, the method comprising:
 delivering a first modular stent device in a delivery position within a delivery system to an ascending aorta, the first modular stent device including a main body, a bypass gate extending from the main body, and a bifurcated contra limb extending from the main body, the bifurcated contra limb including a first distal limb and a second distal limb;   deploying the first modular stent device in the ascending aorta in a deployed position;   deploying a first bridging stent graft in the first distal limb and a left common carotid artery; and   deploying a second bridging stent graft in the second distal limb and a brachiocephalic artery.   
     
     
         16 . The method of  claim 15  further comprising expanding the first bridging stent from a delivery position to a deployed position to be anchored within the second distal limb and the left common carotid artery. 
     
     
         17 . The method of  claim 15  further comprising expanding the second bridging stent from a delivery position to a deployed position to be anchored within the first distal limb and the brachiocephalic artery. 
     
     
         18 . A method of deploying a modular multibranch stent assembly, the method comprising:
 deploying a first modular stent device in an ascending aorta during a first stage, the first modular stent device including a main body, a bypass gate extending from the main body, and a bifurcated contra limb extending from the main body, the bifurcated contra limb including a first distal limb and a second distal limb; and   deploying a first bridging stent graft in the first distal limb in a second stage; and   deploying a second bridging stent graft in the second distal limb in a third stage.   
     
     
         19 . The method of  claim 18 , wherein the second stage is later than the first stage. 
     
     
         20 . The method of  claim 18 , wherein the third stage is later than the first stage.