Stent graft with integrated valve device and method

An endoluminal prosthesis comprising:

• a tubular graft, configured to sealingly engage an inner wall of a body lumen and comprising:
• a proximal portion comprising a trunk portion having a proximal opening, and a distal portion branched into a first branch portion and a second branch portion, each of the first and second branch portions having a distal opening, the trunk portion and each of the first and second branch portions forming lumens for the flow of body fluids from the proximal opening through the distal openings of the at least two branch portions;
• and
• a valve located at least in part within the first branch portion, said valve comprising a support member comprising a portion of a ring and a section of graft material coupled to the support member, wherein the support member has a first, closed position and a second, open position wherein in the first closed position, the support member holds the graft material in a position that prevents flow of body fluids through the opening in the first branch portion, and wherein in the second, open position, the support member is engaged with the first branch portion so that the support member provides an opening in the first branch portion through which body fluids may flow from the trunk portion through the distal opening in the first branch portion.

An endoluminal prosthesis comprising:

• a tubular graft configured to sealingly engage an inner wall of a body lumen and comprising:
• a proximal portion comprising a trunk portion having a proximal opening, and a distal portion branched into a first branch portion and a second branch portion, each of the first and second branch portions having a distal opening, the trunk portion and the first and second branch portions forming a lumen for the flow of body fluids from the proximal opening through the distal openings of the first and second branch portions;
• and
• a valve located at least in part within the first branch portion, said valve comprising:
• a section of graft material in the shape of a partial cylinder;
• a first support member comprising an annular member coupled to the section of graft material to form a lumen through the first support member and the section of graft material;
• and
• a second support member comprising a portion of an annular spring and coupled to the section of graft material,
• wherein the first support member is coupled to the first branch portion within the first branch portion so that the first support member provides said lumen through which body fluids from the trunk portion may flow, and
• wherein the second support member has a first, closed position within the tubular graft and a second, open position within the tubular graft wherein in the first, closed position a portion of the section of the graft material comprises a cover configured to prevent the flow of body fluids through the opening in the first branch portion, wherein the second support member is configured in a semi circular shape adjacent a first portion of the inner circumference of the tubular graft to hold the portion of the section of graft material in a position in which it is forms the cover, and wherein in the second, open position, the second support member is adjacent a second portion of the inner circumference of the tubular graft and is configured to hold the graft material in a position against the second portion of the inner circumference of the tubular graft to permit the flow of body fluids through the lumen.

An endoluminal prosthesis comprising:

• a tubular graft means for sealingly engaging the inner wall of a body lumen and for excluding a portion of a body vessel, the tubular graft means including:
• a proximal portion comprising a trunk portion having a proximal opening, and a distal portion branched into at least two branch portions, each of the at least two branch portions having a distal opening, the trunk portion and the branch portions forming a lumen means for the flow of body fluids from the proximal opening through the distal openings of the at least two branch portions;
• and
• a valve means located at least in part within a first of the branch portions having a branch lumen means therethrough, said valve means comprising a graft means for providing a barrier to the flow of blood;
• and a first support means for opening and closing the valve means by covering or uncovering the branch lumen means to prevent or permit the flow of blood respectively from the trunk portion through the first of the branch portions.

A method of deploying an endoluminal prosthesis comprising the steps of:

• providing an endoluminal prosthesis comprising:
• a tubular graft configured to sealingly engage an inner wall of a body lumen and comprising:
• a proximal portion comprising a trunk portion having a proximal opening, and a distal portion branched into a first branch portion and a second branch portion, each of the first and second branch portions having a distal opening, the trunk portion and the first and second branch portions forming a lumen for the flow of body fluids from the proximal opening through the distal openings of the first and second branch portions;
• and
• a valve located at least in part within the first branch portion, said valve comprising a first support member, a second support member and a graft material coupled to the first and second support members,
• wherein the first support member is engaged with the first branch portion within the first branch portion so that the first support member provides an opening in the first branch portion through which body fluids from the trunk portion may flow, and
• wherein the second support member has a first, closed position and a second, open position wherein in the first closed position, the second support member holds the graft material in a position that prevents flow of body fluids through the opening in the first branch portion, and wherein in the second, open position, the second support member holds the graft material in a position that permits the flow of body fluids through the opening in the first branch portion;
• locating a delivery catheter containing the endoluminal prosthesis at a site for deployment;
• deploying the prosthesis at the site so that the prosthesis engages the inner wall of the body lumen wherein the valve is in a first closed position;
• and
• opening the valve.

A method of deploying an endoluminal prosthesis comprising the steps of:

• providing an endoluminal prosthesis comprising:
• a tubular graft, configured to sealingly engage an inner wall of a body lumen and comprising a proximal portion comprising a trunk portion having a proximal opening, and a distal portion branched into a first branch portion and a second branch portion, each of the first and second branch portions having a distal opening, the trunk portion and each of the first and second branch portions forming lumens for the flow of body fluids from the proximal opening through the distal openings of the at least two branch portions;
• and
• a valve located at least in part within the first branch portion, said valve comprising a support member comprising a portion of a ring and a graft material coupled to the support member, wherein the support member has a first, closed position and a second, open position wherein in the first closed position, the support member holds the graft material in a position that prevents flow of body fluids through the opening in the first branch portion, and wherein in the second, open position, the support member is engaged with the first branch portion so that the support member provides an opening in the first branch portion through which body fluids may flow from the trunk portion through the distal opening in the first branch portion;
• locating a delivery catheter containing the endoluminal prosthesis at a site for deployment;
• deploying the prosthesis at the site so that the prosthesis engages the inner wall of the body lumen wherein the valve is in a first closed position;
• and
• opening the valve.