Devices, systems, and methods for reshaping a heart valve annulus
Implants or systems of implants and methods apply a selected force vector or a selected combination of force vectors within or across the left atrium, which allow mitral valve leaflets to better coapt. The implants or systems of implants and methods make possible rapid deployment, facile endovascular delivery, and full intra-atrial retrievability. The implants or systems of implants and methods also make use of strong fluoroscopic landmarks. The implants or systems of implants and methods make use of an adjustable implant and a fixed length implant. The implants or systems of implants and methods may also utilize a bridge stop to secure the implant, and the methods of implantation employ various tools.
1 . A method of placing an implant within a heart chamber comprising
deploying a guide wire in an intravascular path that extends from a first vascular access into a heart chamber and from the heart chamber to a second vascular access site, the guide wire having a first end extending beyond the first vascular access site and a second end extending beyond the second vascular access site,
coupling the implant to one end of the guide wire, and
pulling on the other end of the guide wire to pull the implant along at least a portion of the intravascular path into the heart chamber.
2 . A method according to claim 1
wherein the heart chamber comprises a left atrium.
3 . A method according to claim 1
further including placing the implant in tension within the heart chamber.
4 . A method according to claim 1
wherein the implant comprises a metallic material or polymer material or a metallic wire form structure or a polymer wire form structure or suture material or equine pericardium or porcine pericardium or bovine pericardium or preserved mammalian tissue.
5 . A method according to claim 1
wherein the first and second access sites comprise a femoral vein.
6 . A method according to claim 1
wherein the first and second access sites are in a groin region.
7 . A method according to claim 1
wherein the first and second access sites are in a neck region.
8 . A method according to claim 1
wherein one of the first and second access site is in a groin region and the other one of the first and second access sites is in a neck region.
9 . A method of implanting a bridge element within a left atrium comprising
deploying a guide wire in an intravascular path that extends from a first vascular access site through an interatrial septum into the left atrium and from the left atrium through a great cardiac vein to a second vascular access site, the guide wire having a first end extending beyond the first vascular access site and a second end extending beyond the second vascular access site,
coupling the bridge element to one end of the guide wire,
pulling on the other end of the guide wire to pull the implant along at least a portion of the intravascular path into the left atrium, and
placing the bridge element in tension between the great cardiac vein and the interatrial septum.
10 . A method according to claim 9
wherein the intravascular path extends from the first vascular access site into a right atrium through a vena cava, from the right atrium through the interatrial septum into the left atrium, from the left atrium into and through a great cardiac vein into the right atrium, and from the right atrium through a vena cava to the second vascular access site.
11 . A method according to claim 9
wherein the intravascular path extends from the first vascular access site into a right atrium through an IVC, from the right atrium through the interatrial septum into the left atrium, from the left atrium into and through a great cardiac vein into the right atrium, and from the right atrium through a SVC to the second vascular access site.
12 . A method according to claim 9
wherein the bridge element is coupled to the second end of the guide wire, and
wherein the first end of the guide wire is pulled to pull the bridge element along at least a portion of the intravascular path through the great cardiac vein and into the left atrium.
13 . A method according to claim 9
wherein placing the bridge element in tension includes securing a posterior bridge stop to the bridging element to abut against venous tissue within the great cardiac vein.
14 . A method according to claim 9
wherein placing the bridge element in tension includes securing an anterior bridge stop to the bridging element to abut against tissue on the interatrial septum within the right atrium.
15 . A method according to claim 14
wherein placing the bridge element in tension includes securing a posterior bridge stop to the bridging element to abut against venous tissue within the great cardiac vein.
16 . A method according to claim 9
wherein placing the bridge element in tension includes adjusting tension on the bridge element to achieve a desired therapeutic result.
17 . A method according to claim 16
wherein the desired therapeutic result is reducing mitral valve regurgitation.
18 . A method according to claim 9
wherein the first and second access sites comprise a femoral vein.
19 . A method according to claim 9
wherein the first and second access sites are in a groin region.
20 . A method according to claim 9
wherein the first and second access sites are in a neck region.
21 . A method according to claim 9
wherein one of the first and second access site is in a groin region and the other one of the first and second access sites is in a neck region.
22 . A system comprising
an implant sized and configured for placement within a heart chamber,
a guide wire sized and configured for deployment in an intravascular path that extends from a first vascular access into the heart chamber and from the heart chamber to a second vascular access site, the guide wire having a first end extending beyond the first vascular access site and a second end extending beyond the second vascular access site, and
a connector to connect an end of the implant to one end of the guide wire such that pulling on the other end of the guide wire pulls the implant along at least a portion of the intravascular path into the heart chamber.
23 . A system according to claim 22
wherein the implant comprises a metallic material or polymer material or a metallic wire form structure or a polymer wire form structure or suture material or equine pericardium or porcine pericardium or bovine pericardium or preserved mammalian tissue.
24 . A system according to claim 22
wherein the first and second access sites comprise a femoral vein.
25 . A system according to claim 22
wherein the first and second access sites are in a groin region.
26 . A system according to claim 22
wherein the first and second access sites are in a neck region.
27 . A system according to claim 22
wherein one of the first and second access site is in a groin region and the other one of the first and second access sites is in a neck region.
28 . A system comprising
a bridge element sized and configured to be implanted within the left atrium between the great cardiac vein and the interatrial septum, the bridge element having opposite ends,
a guide wire sized and configured to be deployed in an intravascular path that extends from a first vascular access site through an interatrial septum into the left atrium and from the left atrium through a great cardiac vein to a second vascular access site, the guide wire having a first end extending beyond the first vascular access site and a second end extending beyond the second vascular access site,
a connector to connect an end of the bridge element to one end of the guide wire such that pulling on the other end of the guide wire pulls the bridge element along at least a portion of the intravascular path into the left atrium,
a posterior bridge stop sized and configured to be secured to an end of the bridging element to abut against venous tissue within the great cardiac vein, and
an anterior bridge stop sized and configured to be secured to the bridging element to abut against tissue on the interatrial septum within the right atrium.
29 . A system according to claim 28
wherein the guide wire extends along the intravascular path from the first vascular access site into a right atrium through a vena cava, from the right atrium through the interatrial septum into the left atrium, from the left atrium into and through a great cardiac vein into the right atrium, and from the right atrium through a vena cava to the second vascular access.
30 . A system according to claim 28
wherein the guide wire extends along the intravascular path from the first vascular access site into a right atrium through an IVC, from the right atrium through the interatrial septum into the left atrium, from the left atrium into and through a great cardiac vein into the right atrium, and from the right atrium through the SVC to the second vascular access site.
31 . A system according to claim 28
wherein the bridge element comprises a metallic material or polymer material or a metallic wire form structure or a polymer wire form structure or suture material or equine pericardium or porcine pericardium or bovine pericardium or preserved mammalian tissue.
32 . A system according to claim 28
wherein the posterior bridge stop and the anterior bridge stop place the bridge element in tension between the interatrial septum and the great cardiac vein.
33 . A system according to claim 28
wherein the first and second access sites comprise a femoral vein.
34 . A system according to claim 28
wherein the first and second access sites are in a groin region.
35 . A system according to claim 28
wherein the first and second access sites are in a neck region.
36 . A system according to claim 28
wherein one of the first and second access site is in a groin region and the other one of the first and second access sites is in a neck region.