Location, time, and/or pressure determining devices, systems, and methods for deployment of lesion-excluding heart implants for treatment of cardiac heart failure and other disease states
First Claim
1. A method for treating a chamber of a heart comprising:
- determining an effective diameter for a cross section of the chamber of the heart, the effective diameter corresponding to a pre-treated diameter of the chamber at the cross section;
determining a desired diameter for the cross section of the chamber, the desired diameter being smaller than the effective diameter and the desired diameter corresponding to a desired volumetric shape of the chamber that is determined to provide an improved function of the chamber;
calculating a change in diameter based on the effective diameter for the cross section and the desired diameter for the cross section;
calculating a linear length of heart tissue to be excluded from the chamber at the cross section based on the calculated change in diameter;
deploying a first anchor at a first anchor location within the chamber at the cross section;
deploying a second anchor at a second anchor location within the chamber at the cross section, wherein a tension member couples the first anchor with the second anchor and wherein a length of the tension member approximates the calculated linear length of heart tissue to exclude from the chamber; and
tensioning the tension member to reduce the length of the tension member between the first anchor and the second anchor and thereby bring opposing walls into apposition and reduce a volume of the chamber.
2 Assignments
0 Petitions
Accused Products
Abstract
Devices, systems, and methods for treating a heart of a patient may make use of structures which limit a size of a chamber of the heart, such as by deploying one or more tensile member to bring a wall of the heart and a septum of the heart into contact. A plurality of tension members may help exclude scar tissue and provide a more effective remaining ventricle chamber. The implant may be deployed during beating of the heart, often in a minimally invasive or less-invasive manner. Trauma to the tissues of the heart may be inhibited by selectively approximating tissues while a pressure within the heart is temporarily reduced. Three-dimensional implant locating devices and systems facilitate beneficial heart chamber volumetric shape remodeling.
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Citations
20 Claims
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1. A method for treating a chamber of a heart comprising:
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determining an effective diameter for a cross section of the chamber of the heart, the effective diameter corresponding to a pre-treated diameter of the chamber at the cross section; determining a desired diameter for the cross section of the chamber, the desired diameter being smaller than the effective diameter and the desired diameter corresponding to a desired volumetric shape of the chamber that is determined to provide an improved function of the chamber; calculating a change in diameter based on the effective diameter for the cross section and the desired diameter for the cross section; calculating a linear length of heart tissue to be excluded from the chamber at the cross section based on the calculated change in diameter; deploying a first anchor at a first anchor location within the chamber at the cross section; deploying a second anchor at a second anchor location within the chamber at the cross section, wherein a tension member couples the first anchor with the second anchor and wherein a length of the tension member approximates the calculated linear length of heart tissue to exclude from the chamber; and tensioning the tension member to reduce the length of the tension member between the first anchor and the second anchor and thereby bring opposing walls into apposition and reduce a volume of the chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for determining a treatment for a chamber of a heart, the system comprising:
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a first anchor; a second anchor; a tension member that couples the first anchor with the second anchor; a modeling component that is configured for; determining an effective diameter for a cross section of the chamber, the effective diameter corresponding to a pre-treated diameter of the chamber at the cross section; and determining a desired diameter for the cross section of the chamber, the desired diameter being smaller than the effective diameter and the desired diameter corresponding to a desired volumetric shape of the chamber that is determined to provide an improved function of the chamber; and a processing component that is configured for; calculating a change in diameter based on the effective diameter for the cross section and the desired diameter for the cross section; and calculating a linear length of heart tissue to be excluded from the chamber at the cross section based on the calculated change in diameter; wherein; the first anchor is deployable at a first anchor location within the chamber at the cross section; the second anchor is deployable at a second anchor location within the chamber at the cross section; a length of the tension member between the first anchor and the second anchor approximates the calculated linear length of heart tissue to exclude from the chamber; and the tension member is tensionable to reduce the length of the tension member between the first anchor and the second anchor and thereby bring opposing walls into apposition and reduce a volume of the chamber. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification