Endoluminal Prosthetic Conduit Systems and Method of Coupling

Abstract

A modular prosthetic conduit system such as a stent or stent graft system tailored for the repair of aneurysms or other compromised vessel walls. The stent or stent graft system incorporates various means to interlock the multiple modular components used in the repair procedure. The present invention further provides a modular stent graft system tailored for the repair of aneurysms or other compromised vessel walls that cross or are adjacent to a branch or bifurcation in a vessel.

1 . Prosthetic conduit system comprising:
 an expandable main conduit having a first open end, a second open end, a main conduit wall extending therebetween, an outer conduit surface and an inner conduit surface having at least one protuberance thereon;   an expandable secondary conduit having a first open end, a second open end, a secondary conduit wall extending therebetween, and attachment portion extending at an angle of less than 90 degrees from the secondary conduit wall when in a deployed state; and   wherein at least a portion of the secondary conduit is sized to fit inside the main conduit.   
   
   
       2 . The prosthetic conduit system of  claim 1 , wherein the expandable main conduit comprises at least one opening through the wall. 
   
   
       3 . The prosthetic conduit system of  claim 2 , wherein at least a portion of the expandable secondary conduit is sized to pass through the opening in the wall of the main conduit. 
   
   
       4 . The prosthetic conduit system of  claim 1 , wherein an inner surface of the at least one protuberance forms an angle of less than 90 degrees with the wall of the expandable main conduit. 
   
   
       5 . The prosthetic conduit system of  claim 4 , wherein the attachment portion of the secondary conduit is configured to be coupled to the at least one protuberance of the main conduit when the secondary conduit is in a deployed state. 
   
   
       6 . The prosthetic conduit system of  claim 4 , wherein the expandable main conduit comprises at least one opening in the wall and the at least one protuberance is located adjacent the at least one opening in the wall. 
   
   
       7 . The prosthetic conduit system of  claim 6 , wherein the attachment portion of the secondary conduit is configured to be coupled to the at least one protuberance of the main conduit when the secondary conduit is in a deployed state. 
   
   
       8 . The prosthetic conduit system of  claim 2 , wherein the at least one protuberance comprises an internal channel having a first open end located within the main conduit and a second open end at the opening in the wall. 
   
   
       9 . The prosthetic conduit system of  claim 8 , wherein the expandable secondary conduit is sized to pass through the internal channel of the main conduit. 
   
   
       10 . The prosthetic conduit system of  claim 9 , wherein the attachment portion of the secondary conduit is configured to be coupled with the first open end of the internal channel of the main conduit. 
   
   
       11 . The prosthetic conduit system of  claim 1 , wherein the expandable main conduit is balloon expandable. 
   
   
       12 . The prosthetic conduit system of  claim 1 , wherein the expandable main conduit is self-expanding. 
   
   
       13 . The prosthetic conduit system of  claim 12 , wherein the expandable secondary conduit is self-expanding. 
   
   
       14 . The prosthetic conduit system of  claim 1 , wherein the at least one protuberance is selected from the group consisting of barbs, cuffs, hooks, flanges, stent apices and rings. 
   
   
       15 . The prosthetic conduit system of  claim 1 , wherein the expandable main conduit comprises a graft material. 
   
   
       16 . The prosthetic conduit system of  claim 1 , wherein the expandable secondary conduit comprises a graft material. 
   
   
       17 . The prosthetic conduit system of  claim 15 , wherein the graft material comprises ePTFE. 
   
   
       18 . The prosthetic conduit system of  claim 16 , wherein the graft material comprises ePTFE. 
   
   
       19 . The prosthetic conduit system of  claim 1 , wherein the expandable main conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       20 . The prosthetic conduit system of  claim 19 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       21 . The prosthetic conduit system of  claim 1 , wherein the attachment portion is selected from the group consisting of barbs, hooks, flanges, stent apices and rings. 
   
   
       22 . The prosthetic conduit system of  claim 19 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       23 . The prosthetic conduit system of  claim 1 , wherein the expandable secondary conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       24 . The prosthetic conduit system of  claim 23 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       25 . The prosthetic conduit system of  claim 23 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       26 . Prosthetic conduit system comprising:
 an expandable main conduit having a first open end, a second open end, a main conduit wall extending there between, an outer conduit surface, and an inner conduit surface having at least one protuberance thereon;   an expandable secondary conduit having a first open end, a second open end, a secondary conduit wall extending there between, and attachment portion extending at an angle of less than 90 degrees from the secondary conduit wall; and   wherein at least a portion of the secondary conduit is located inside the main conduit.   
   
   
       27 . The prosthetic conduit system of  claim 26 , wherein the expandable main conduit comprises at least one opening through the wall. 
   
   
       28 . The prosthetic conduit system of  claim 27 , wherein at least a portion of the expandable secondary conduit passes through the opening in the wall of the main conduit. 
   
   
       29 . The prosthetic conduit system of  claim 26 , wherein the at least one protuberance forms an angle of less than 90 degrees with the wall of the expandable main conduit. 
   
   
       30 . The prosthetic conduit system of  claim 28 , wherein the attachment portion of the secondary conduit is in contact with the at least one protuberance of the main conduit. 
   
   
       31 . The prosthetic conduit system of  claim 29 , wherein the expandable main conduit comprises at least one opening in the wall and the at least one protuberance is located adjacent the at least one opening in the wall. 
   
   
       32 . The prosthetic conduit system of  claim 31 , wherein the attachment portion of the secondary conduit is configured to be coupled to the at least one protuberance of the main conduit when the secondary conduit is in a deployed state. 
   
   
       33 . The prosthetic conduit system of  claim 27 , wherein the at least one protuberance comprises an internal channel having a first open end located within the main conduit and a second open end at the opening in the wall. 
   
   
       34 . The prosthetic conduit system of  claim 33 , wherein at least a portion of the expandable secondary conduit is located in the internal channel of the main conduit. 
   
   
       35 . The prosthetic conduit system of  claim 34 , wherein the attachment portion of the secondary conduit is in contact with the first open end of the internal channel of the main conduit. 
   
   
       36 . The prosthetic conduit system of  claim 26 , wherein the expandable main conduit is balloon expandable. 
   
   
       37 . The prosthetic conduit system of  claim 26 , wherein the expandable main conduit is self-expanding. 
   
   
       38 . The prosthetic conduit system of  claim 37 , wherein the expandable secondary conduit is self-expanding. 
   
   
       39 . The prosthetic conduit system of  claim 26 , wherein the at least one protuberance is selected from the group consisting of barbs, cuffs, hooks, flanges, stent apices and rings. 
   
   
       40 . The prosthetic conduit system of  claim 26 , wherein the expandable main conduit comprises a graft material. 
   
   
       41 . The prosthetic conduit system of  claim 26 , wherein the expandable secondary conduit comprises a graft material. 
   
   
       42 . The prosthetic conduit system of  claim 40 , wherein the graft material comprises ePTFE. 
   
   
       43 . The prosthetic conduit system of  claim 41 , wherein the graft material comprises ePTFE. 
   
   
       44 . The prosthetic conduit system of  claim 26 , wherein the expandable main conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       45 . The prosthetic conduit system of  claim 44 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       46 . The prosthetic conduit system of  claim 26 , wherein the attachment portion is selected from the group consisting of barbs, hooks, flanges, stent apices and rings. 
   
   
       47 . The prosthetic conduit system of  claim 44 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       48 . The prosthetic conduit system of  claim 26 , wherein the expandable secondary conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       49 . The prosthetic conduit system of  claim 48 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       50 . The prosthetic conduit system of  claim 49 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       51 . Prosthetic conduit system comprising:
 an expandable main conduit having a first open end, a second open end, a main conduit wall extending therebetween, an outer conduit surface, and an inner conduit surface;   an expandable secondary conduit having a first open end, a second open end, a secondary wall extending therebetween, and attachment portion extending at an angle of less than 90 degrees from the secondary wall when in a deployed state; and   wherein at least a portion of the secondary conduit is sized to fit inside the main conduit.   
   
   
       52 . The prosthetic conduit system of  claim 51 , wherein the main conduit wall comprises at least one aperture and at least a portion of the attachment portion extends through the at least one opening. 
   
   
       53 . Prosthetic conduit system comprising:
 an expandable main conduit having a first open end, a second open end, a main conduit wall extending therebetween, at least one opening through the main conduit wall, and an internal channel having an inner surface, an outer surface, a first open end located within the main conduit and a second open end at the opening in the main conduit wall;   an expandable secondary conduit having a first open end, a second open end, a secondary conduit wall extending therebetween, and attachment portion extending at an angle of less than 90 degrees from the secondary conduit wall when in a deployed state; and   wherein at least a portion of the secondary conduit is sized to fit inside the internal channel and through the opening in the main conduit wall.   
   
   
       54 . The prosthetic conduit system of  claim 53 , wherein the inner surface of the internal channel comprises at least one protuberance thereon. 
   
   
       55 . The prosthetic conduit system of  claim 54 , wherein the at least one protuberance forms an angle of less than 90 degrees with the internal channel. 
   
   
       56 . The prosthetic conduit system of  claim 53 , wherein the attachment portion is configured to be coupled to the first open end of the internal channel. 
   
   
       57 . The prosthetic conduit system of  claim 54 , wherein the attachment portion is configured to be coupled to the protuberance on the inner surface of the internal channel. 
   
   
       58 . The prosthetic conduit system of  claim 53 , wherein the expandable main conduit is balloon expandable. 
   
   
       59 . The prosthetic conduit system of  claim 53 , wherein the expandable main conduit is self-expanding. 
   
   
       60 . The prosthetic conduit system of  claim 54 , wherein the at least one protuberance is selected from the group consisting of barbs, cuffs, hooks, flanges, stent apices and rings. 
   
   
       61 . The prosthetic conduit system of  claim 53 , wherein the main conduit comprises a graft material. 
   
   
       62 . The prosthetic conduit system of  claim 53 , wherein the secondary conduit comprises a graft material. 
   
   
       63 . The prosthetic conduit system of  claim 61 , wherein the graft material comprises ePTFE. 
   
   
       64 . The prosthetic conduit system of  claim 62 , wherein in the graft material comprises ePTFE. 
   
   
       65 . The prosthetic conduit system of  claim 53 , wherein the expandable main conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       66 . The prosthetic conduit system of  claim 65 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       67 . The prosthetic conduit system of  claim 53 , wherein the attachment portion comprises a flange. 
   
   
       68 . The prosthetic conduit system of  claim 65 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       69 . The prosthetic conduit system of  claim 53 , wherein the expandable secondary conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       70 . The prosthetic conduit system of  claim 69 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       71 . The prosthetic conduit system of  claim 70 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       72 . Prosthetic conduit system comprising:
 an expandable main conduit having a first open end, a second open end, a main conduit wall extending therebetween, at least one opening through the main conduit wall, and an internal channel having an inner surface, an outer surface, a first open end located within the main conduit and a second open end at the opening in the wall;   an expandable secondary conduit having a first open end, a second open end, a secondary conduit wall extending there between, and attachment portion extending at an angle of less than 90 degrees from the secondary conduit wall when in a deployed state; and   wherein at least a portion of the secondary conduit is located inside the internal channel.   
   
   
       73 . The prosthetic conduit system of  claims 72 , wherein the attachment portion is in contact with the internal channel. 
   
   
       74 . The prosthetic conduit system of  claim 72 , wherein the inner surface of the internal channel comprises at least one protuberance thereon. 
   
   
       75 . The prosthetic conduit system of  claim 74 , wherein the at least one protuberance forms an angle of less than 90 degrees with the internal channel. 
   
   
       76 . The prosthetic conduit system of  claim 72 , wherein the attachment portion is in contact with the first open end of the internal channel. 
   
   
       77 . The prosthetic conduit system of  claim 74 , wherein the attachment portion is in contact with the protuberance on the inner surface of the internal channel. 
   
   
       78 . The prosthetic conduit system of  claim 72 , wherein the expandable main conduit is balloon expandable. 
   
   
       79 . The prosthetic conduit system of  claim 72 , wherein the expandable main conduit is self-expanding. 
   
   
       80 . The prosthetic conduit system of  claim 74 , wherein the at least one protuberance is selected from the group consisting of barbs, cuffs, hooks, flanges, stent apices and rings. 
   
   
       81 . The prosthetic conduit system of  claim 72 , wherein the main conduit comprises a graft material. 
   
   
       82 . The prosthetic conduit system of  claim 72 , wherein the secondary conduit comprises a graft material. 
   
   
       83 . The prosthetic conduit system of  claim 81 , wherein the graft material comprises ePTFE. 
   
   
       84 . The prosthetic conduit system of  claim 82 , wherein in the graft material comprises ePTFE. 
   
   
       85 . The prosthetic conduit system of  claim 72 , wherein the expandable main conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       86 . The prosthetic conduit system of  claim 85 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       87 . The prosthetic conduit system of  claim 72 , wherein the attachment portion comprises a flange. 
   
   
       88 . The prosthetic conduit system of  claim 85 , wherein the first stent segment and the second stent segment comprise nitinol. 
   
   
       89 . The prosthetic conduit system of  claim 72 , wherein the expandable secondary conduit comprises a first stent segment at the first open end and a second stent segment at the second open end. 
   
   
       90 . The prosthetic conduit system of  claim 89 , wherein the first stent segment and the second stent segment comprise a single stent extending from the first open end to the second open end. 
   
   
       91 . The prosthetic conduit system of  claim 90 , wherein the first stent segment and the second stent segment comprise nitinol.