Steerable lesion excluding heart implants for congestive heart failure
First Claim
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1. A method for treating a heart, the heart having a first chamber bordered by a septum and a wall, wherein the chamber comprises a left ventricle of the heart, the heart having a second chamber separated from the first chamber by the septum, the method comprising:
- penetrating the septum at a first location selected for deployment of an implant;
penetrating the wall at a second location selected for the deployment of the implant;
controllably steering between the first location and the second location with reference to an image of the first chamber;
sensing a pressure from a distal end of a perforation device advancing through heart tissue at the first and/or second locations so as to characterize the tissue;
deploying the implant by affixing a first anchor of the implant adjacent the penetration of the septum, affixing a second anchor of the implant adjacent the penetration of the wall, and applying tension between the first anchor and the second anchor;
penetrating the wall at a plurality of additional locations, wherein a plurality of separate implants are deployed, each deployed implant having a tension member extending from a first anchor at an associated penetration of the septum to a second anchor at an associated penetration of the wall so that the tension members are laterally offset, wherein tension is applied between the septum and the wall by the laterally offset tension members of the implants;
wherein the tensioned members are tensioned sufficiently to bring the wall and septum into engagement, and wherein the tension members, the anchors, and associated penetrations are separated so as to, in combination, extend the engagement across a portion of the chamber sufficiently to effectively exclude regions of the wall and septum from the left ventricle with scar tissue extending along the excluded regions.
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Accused Products
Abstract
Devices, systems, and methods for treating a heart of a patient may make use of one or more implant structures which limit a size of a chamber of the heart, such as by deploying a tensile member to bring a wall of the heart toward (optionally into contact with) a septum of the heart.
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Citations
18 Claims
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1. A method for treating a heart, the heart having a first chamber bordered by a septum and a wall, wherein the chamber comprises a left ventricle of the heart, the heart having a second chamber separated from the first chamber by the septum, the method comprising:
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penetrating the septum at a first location selected for deployment of an implant; penetrating the wall at a second location selected for the deployment of the implant; controllably steering between the first location and the second location with reference to an image of the first chamber; sensing a pressure from a distal end of a perforation device advancing through heart tissue at the first and/or second locations so as to characterize the tissue; deploying the implant by affixing a first anchor of the implant adjacent the penetration of the septum, affixing a second anchor of the implant adjacent the penetration of the wall, and applying tension between the first anchor and the second anchor; penetrating the wall at a plurality of additional locations, wherein a plurality of separate implants are deployed, each deployed implant having a tension member extending from a first anchor at an associated penetration of the septum to a second anchor at an associated penetration of the wall so that the tension members are laterally offset, wherein tension is applied between the septum and the wall by the laterally offset tension members of the implants; wherein the tensioned members are tensioned sufficiently to bring the wall and septum into engagement, and wherein the tension members, the anchors, and associated penetrations are separated so as to, in combination, extend the engagement across a portion of the chamber sufficiently to effectively exclude regions of the wall and septum from the left ventricle with scar tissue extending along the excluded regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for treating a heart, the heart having a first chamber bordered by a septum and a wall, the heart having a second chamber separated from the first chamber by the septum, the system comprising:
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a perforation device advanceable through the septum and/or wall and configured to sense a pressure from a distal end thereof so as to characterize the tissue of the septum and/or wall; a plurality of separate implants, each implant having an anchor, a wall anchor, and a tension member to apply tension between the septum and wall when the implant is deployed so as to bring the wall and septum into engagement, the implants together configured to extend the engagement across a portion of the chamber sufficiently to effectively exclude regions of the wall and septum from the chamber when adjacent anchors are separated along the septum and wall.
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18. A system for treating a heart, the heart having a first chamber bordered by a septum and a wall, the heart having a second chamber separated from the first chamber by the septum, the system comprising:
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an implant having an anchor, a wall anchor, and a tension member to apply tension between the septum and wall when the implant is deployed so as to bring the wall and septum into engagement; at least one additional implant, the at least one additional implant being deployable separated from the first implant, and means for penetrating the wall of the heart and the septum from a surgical site outside the heart and within the patient; means for directing the penetrating means to form a plurality of penetrations through the wall and the septum and at locations separated across a lower portion of the chamber so that the implants, when deployed, are separated from each other and form a region of engagement extending across the lower portion of the chamber; and means for sensing pressure within the heart, the pressure sensing means coupled to the penetrating means.
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Specification