In an embodiment, a stent is provided for use in blood vessels with blockage near or in a bifurcation. The stent includes a side aperture. The stent is inserted into one of the daughter branches of the bifurcation and positioned with the use of markers. The stent is then expanded so as to support the wall of the blood vessel while allowing the blood to continue to flow to both daughter branches.

In an embodiment, a stent is provided for use in blood vessels with blockage near or in a bifurcation. The stent includes a side aperture. The stent is inserted into one of the daughter branches of the bifurcation and positioned with the use of markers. The stent is then expanded so as to support the wall of the blood vessel while allowing the blood to continue to flow to both daughter branches.

A self expanding stent (10) formed from a resilient wire. The resilient wire comprises a zig zag form including an odd number of struts (12) such as seven struts and a bend (14) between each strut. There is first loop (18) of the resilient wire at the terminal end of a first strut and a second loop (18) of the resilient wire at the terminal end of a last strut. The stent as formed is substantially planar but in use is formed into a substantially cylindrical form (20) by being stitched onto a tubular body of a biocompatible graft material with at least the first strut and the last strut overlapping.

A self expanding stent (10) formed from a resilient wire. The resilient wire comprises a zig zag form including an odd number of struts (12) such as seven struts and a bend (14) between each strut. There is first loop (18) of the resilient wire at the terminal end of a first strut and a second loop (18) of the resilient wire at the terminal end of a last strut. The stent as formed is substantially planar but in use is formed into a substantially cylindrical form (20) by being stitched onto a tubular body of a biocompatible graft material with at least the first strut and the last strut overlapping.

Provided are a stent graft and a stent-graft placement device with which it is possible to suitably align a side opening of a main blood vessel stent graft and a blood vessel opening of a branch blood vessel. The stent graft (10) is to be placed in a tubular tissue and is equipped with: a skeleton portion (11); a tubular graft portion (12) having, in part of a tube wall, a side opening (opening 121a of branch portion 121) that communicates with the lumen, the graft portion being provided along the skeleton portion; and a position adjustment portion (13) capable of adjusting the relative position of the side opening in the graft portion when the stent graft is placed in the tubular tissue.

Provided are a stent graft and a stent-graft placement device with which it is possible to suitably align a side opening of a main blood vessel stent graft and a blood vessel opening of a branch blood vessel. The stent graft (10) is to be placed in a tubular tissue and is equipped with: a skeleton portion (11); a tubular graft portion (12) having, in part of a tube wall, a side opening (opening 121a of branch portion 121) that communicates with the lumen, the graft portion being provided along the skeleton portion; and a position adjustment portion (13) capable of adjusting the relative position of the side opening in the graft portion when the stent graft is placed in the tubular tissue.

A heart valve assembly includes an inner frame comprising a graft covering housing a prosthetic heart valve, wherein the graft covering extends around the prosthetic heart valve for providing sealing to the heart valve, an outer frame formed from a metallic material and defining a gridded configuration, and being secured to the graft covering by a plurality of stitches, and a sealing material positioned externally to the outer frame for providing sealing between the outer frame and a patient's anatomical wall to prevent paravalvular leaks. The sealing material includes a plurality of radially extending fibers that extend outwardly of the outer frame. The graft covering is made of polyester, polytetrafluoroethylene, expanded polytetrafluoroethylene, or a polymer.

A heart valve assembly includes an inner frame comprising a graft covering housing a prosthetic heart valve, wherein the graft covering extends around the prosthetic heart valve for providing sealing to the heart valve, an outer frame formed from a metallic material and defining a gridded configuration, and being secured to the graft covering by a plurality of stitches, and a sealing material positioned externally to the outer frame for providing sealing between the outer frame and a patient's anatomical wall to prevent paravalvular leaks. The sealing material includes a plurality of radially extending fibers that extend outwardly of the outer frame. The graft covering is made of polyester, polytetrafluoroethylene, expanded polytetrafluoroethylene, or a polymer.

A stent graft includes a tubular aortic component that defines a lumen and a fenestration with a pocket at the fenestration. At least one proximal tunnel graft extends proximally within the lumen from the proximal opening of the pocket and is secured at a proximal end to the tubular component, and at least one distal tunnel graft extends distally within the lumen from the distal opening of the pocket and is secured at a distal end to the tubular aortic component. The stent graft can further include at least one branch stent graft, each of which extends through the fenestration and within at least one of the proximal tunnel graft or the distal tunnel graft. The stent graft can be implanted in a patient to thereby treat an aneurysm, such as a suprarenal or thoracoabdominal aortic aneurysm.

A stent graft includes a tubular aortic component that defines a lumen and a fenestration with a pocket at the fenestration. At least one proximal tunnel graft extends proximally within the lumen from the proximal opening of the pocket and is secured at a proximal end to the tubular component, and at least one distal tunnel graft extends distally within the lumen from the distal opening of the pocket and is secured at a distal end to the tubular aortic component. The stent graft can further include at least one branch stent graft, each of which extends through the fenestration and within at least one of the proximal tunnel graft or the distal tunnel graft. The stent graft can be implanted in a patient to thereby treat an aneurysm, such as a suprarenal or thoracoabdominal aortic aneurysm.