Treating dysfunctional cardiac tissue
First Claim
1. A percutaneous ventricular reduction method for treating a heart of a patient comprising:
- advancing a distal end of a catheter through a vena cavae and into a right atrium of the heart, the vena cavae being accessed via a femoral vein or an internal jugular vein;
advancing the distal end of the catheter through a tricuspid value and into a right ventricle of the heart;
positioning the distal end of the catheter adjacent a septum so that a distal tip of the catheter is positioned near dysfunctional tissue of the septum;
perforating the septum;
advancing, via the catheter, a guidewire across the septum through said perforation so that a distal end of the guidewire is positioned within a left ventricle of the heart;
advancing the catheter across the septum and across the left ventricle so that the distal end of the catheter is positioned adjacent to dysfunctional tissue on an anterior or lateral wall of the left ventricle;
perforating the dysfunctional tissue of the left ventricle;
advancing the distal end of the guidewire across the anterior or lateral wall of the left ventricle through said perforation so that the distal end of the guidewire is positioned external to the heart;
delivering a first anchor to a position adjacent the anterior or lateral wall of the left ventricle, the first anchor being positioned on an exterior surface of the anterior or lateral wall;
delivering, via the catheter, a second anchor to a position adjacent the septum by advancing the second anchor through the vena cavae, right atrium, and tricuspid valve, the second anchor being positioned within the right ventricle, wherein the first anchor and the second anchor are operably coupled with a tension member; and
tensioning the tension member to draw the first anchor and the second anchor toward one another and thereby draw the septum and anterior or lateral wall into engagement.
2 Assignments
0 Petitions
Accused Products
Abstract
Medical devices, systems, and methods reduce the distance between two points in tissue, often for treatment of congestive heart failure and often in a minimally invasive manner. An anchor is inserted along an insertion path through a first wall of the heart. An arm of the anchor is deployed and rotationally positioned according to a desired alignment. Application of tension to the anchor may draw the first and second walls of the heart into contact along a desired contour so as to effect a desired change in the geometry of the heart. Additional anchors may be inserted and aligned with the first anchor to close off a portion of a ventricle such that the ventricle is geometrically remodeled and disease progression is reversed, halted, and/or slowed.
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Citations
20 Claims
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1. A percutaneous ventricular reduction method for treating a heart of a patient comprising:
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advancing a distal end of a catheter through a vena cavae and into a right atrium of the heart, the vena cavae being accessed via a femoral vein or an internal jugular vein; advancing the distal end of the catheter through a tricuspid value and into a right ventricle of the heart; positioning the distal end of the catheter adjacent a septum so that a distal tip of the catheter is positioned near dysfunctional tissue of the septum; perforating the septum; advancing, via the catheter, a guidewire across the septum through said perforation so that a distal end of the guidewire is positioned within a left ventricle of the heart; advancing the catheter across the septum and across the left ventricle so that the distal end of the catheter is positioned adjacent to dysfunctional tissue on an anterior or lateral wall of the left ventricle; perforating the dysfunctional tissue of the left ventricle; advancing the distal end of the guidewire across the anterior or lateral wall of the left ventricle through said perforation so that the distal end of the guidewire is positioned external to the heart; delivering a first anchor to a position adjacent the anterior or lateral wall of the left ventricle, the first anchor being positioned on an exterior surface of the anterior or lateral wall; delivering, via the catheter, a second anchor to a position adjacent the septum by advancing the second anchor through the vena cavae, right atrium, and tricuspid valve, the second anchor being positioned within the right ventricle, wherein the first anchor and the second anchor are operably coupled with a tension member; and tensioning the tension member to draw the first anchor and the second anchor toward one another and thereby draw the septum and anterior or lateral wall into engagement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for treating a heart of a patient comprising:
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advancing a distal end of a catheter percutaneously through a vasculature and an atrium of the heart and into a first chamber of the heart; positioning the distal end of the catheter adjacent a first wall of the heart so that a distal tip of the catheter is positioned near dysfunctional tissue of the first wall; advancing the catheter across the first wall so that a distal end of the catheter is positioned within a second chamber of the heart; advancing the distal end of the catheter across the second chamber so that the distal end of the catheter is positioned adjacent a second wall of the heart; advancing the distal end of the catheter across the second wall of the heart so that the distal end of the catheter is positioned externally of the heart; delivering, via the catheter, a first anchor to a position adjacent the second wall of the heart; delivering, via the catheter, a second anchor to a position adjacent the first wall of the heart, wherein the first anchor and the second anchor are operably coupled with a tension member; and tensioning the tension member to draw the first anchor and the second anchor toward one another and thereby draw the first wall and the second wall into engagement. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification