Device for changing the shape of the mitral annulus
First Claim
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1. A device for the treatment of mitral annulus dilatation comprising:
- an elongate body having such dimensions as to be insertable into a coronary sinus, the elongate body including a distal stent section, a proximal stent section and a central stent section, wherein the elongate body has two states, a first state wherein the elongate body has a shape that is adaptable to the shape of the coronary sinus, and a second state wherein the elongate body pushes on the coronary sinus to reduce dilatation, wherein a backbone extends along the distal, proximal and central stent sections, the backbone includes alternating ring and severed regions fixing the stent sections relative to one another, wherein the distal stent section and the proximal stent section in the second state anchor the device to the coronary sinus when the elongate body is positioned in the coronary sinus.
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Abstract
An elongate body including a proximal and distal anchor, and a bridge between the proximal and distal anchors. The bridge has an elongated state, having first axial length, and a shortened state, having a second axial length, wherein the second axial length is shorter than the first axial length. A resorbable thread may be woven into the bridge to hold the bridge in the elongated state and to delay the transfer of the bridge to the shortened state. In an additional embodiment, there may be one or more central anchors between the proximal and distal anchors with a bridge connecting adjacent anchors.
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Citations
20 Claims
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1. A device for the treatment of mitral annulus dilatation comprising:
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an elongate body having such dimensions as to be insertable into a coronary sinus, the elongate body including a distal stent section, a proximal stent section and a central stent section, wherein the elongate body has two states, a first state wherein the elongate body has a shape that is adaptable to the shape of the coronary sinus, and a second state wherein the elongate body pushes on the coronary sinus to reduce dilatation, wherein a backbone extends along the distal, proximal and central stent sections, the backbone includes alternating ring and severed regions fixing the stent sections relative to one another, wherein the distal stent section and the proximal stent section in the second state anchor the device to the coronary sinus when the elongate body is positioned in the coronary sinus. - View Dependent Claims (2, 3, 4)
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5. A device for treatment of mitral annulus dilation comprising:
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an elongate, expandable body having a curved configuration to conform to an anatomy of a coronary sinus, the elongate, expandable body comprising a proximal stent section, a central stent section, and a distal stent section, wherein a diameter of the elongate, expandable body varies from the proximal stent section to the distal stent section, the elongate, expandable body having two states, a first state wherein the elongate, expandable body is compressed to be inserted into the coronary sinus; and
a second state wherein the elongate, expandable body self expands to correspond to a three dimensional shape of the coronary sinus;
the elongate body further having a third state shorter than the second state to provide foreshortening of the coronary sinus. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A device for the treatment of mitral annulus dilatation comprising:
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an elongate body having dimensions as to be insertable into a coronary sinus, the elongate body including a first anchor;
a second anchor;
a first bridge between the first anchor and second anchor, wherein the bridge has open spaces and wherein the bridge has an elongated state in which the bridge has a first axial length and a shortened state in which the bridge has a second axial length, and a resorbable thread to hold the bridge in the elongated state and to delay the transfer of the bridge to the shortened state when the device is inserted into the coronary sinus, the resorbable thread being woven between the open spaces of the bridge, wherein the second axial length of the bridge is shorter than the first axial length, wherein the bridge has a tendency to transfer its shape towards the shortened state when being in the elongated state. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification