Implanting cardiac devices
First Claim
1. A method for implanting a self-expanding cardiac device, the method comprising:
- providing the self-expanding cardiac device configured to fit about an apex and at least a portion of ventricles of a living heart such that an upper edge of the self-expanding cardiac device is parallel to and vertically offset from a valve plane of the living heart upon implanting, whereinthe vertical offset is between 1 mm and 30 mm, andthe self-expanding cardiac device comprisesa self-expanding sheath,a plurality of expandable units each disposed at least in part on the self-expanding sheath,at least one conduit in fluid communication with at least a first expandable unit of the plurality of expandable units, andat least one sensor configured for positioning against the living heart, andat least one lead or second conduit connected to at least one of the self-expanding sheath and the at least one sensor;
inserting, in a collapsed state, the self-expanding cardiac device through an aperture of a pericardium about the living heart of a patient using a minimally invasive procedure;
releasing the self-expanding cardiac device to cause the self-expanding cardiac device to automatically transform from the collapsed state to an expanded state; and
orienting the self-expanding cardiac device relative to the living heart;
wherein, upon orienting,the self-expanding sheath has an internal contour that corresponds to an outer contour of the living heart such that a spacing between the outer contour and the inner contour is substantially constant, andthe self-expanding cardiac device is held in place surrounding the living heart absent an adhesive.
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Abstract
A method of implanting a cardiac device featuring the insertion of an inner seal member through an opening in a pericardium about a living human heart. The inner seal member has a first sealing lip disposed inside the pericardium and surrounding an aperture through the inner seal member. An outer seal member is aligned with the inner seal member. The outer seal member has a second sealing lip disposed outside the pericardium, surrounding an aperture through the outer seal member. The inner seal member is secured to the outer seal member. The firsts sealing lip is engaged against an inner surface of the pericardium. The second sealing lip is engaged against an outer surface of the pericardium. A cardiac device is inserted into the pericardium through the apertures of the inner and outer seal members.
100 Citations
16 Claims
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1. A method for implanting a self-expanding cardiac device, the method comprising:
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providing the self-expanding cardiac device configured to fit about an apex and at least a portion of ventricles of a living heart such that an upper edge of the self-expanding cardiac device is parallel to and vertically offset from a valve plane of the living heart upon implanting, wherein the vertical offset is between 1 mm and 30 mm, and the self-expanding cardiac device comprises a self-expanding sheath, a plurality of expandable units each disposed at least in part on the self-expanding sheath, at least one conduit in fluid communication with at least a first expandable unit of the plurality of expandable units, and at least one sensor configured for positioning against the living heart, and at least one lead or second conduit connected to at least one of the self-expanding sheath and the at least one sensor; inserting, in a collapsed state, the self-expanding cardiac device through an aperture of a pericardium about the living heart of a patient using a minimally invasive procedure; releasing the self-expanding cardiac device to cause the self-expanding cardiac device to automatically transform from the collapsed state to an expanded state; and orienting the self-expanding cardiac device relative to the living heart; wherein, upon orienting, the self-expanding sheath has an internal contour that corresponds to an outer contour of the living heart such that a spacing between the outer contour and the inner contour is substantially constant, and the self-expanding cardiac device is held in place surrounding the living heart absent an adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for implanting a self-expanding cardiac device, the method comprising:
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providing a self-expanding cardiac device geometrically configured for a living heart of a patient, wherein the self-expanding cardiac device comprises a self-expanding sheath, a plurality of expandable units each disposed at least in part on the self-expanding sheath, at least one conduit in fluid communication with at least a first expandable unit of the plurality of expandable units, at least one sensor configured for positioning against the living heart, and at least one lead or second conduit connected to at least one of the self-expanding sheath and the at least one sensor, the self-expanding cardiac device is formed to fit about an apex and a least a portion of ventricles of the living heart having, when in an expanded state, an internal contour that corresponds to an outer contour of the living heart such that a gap between the outer contour and the internal contour is at all points less than 8 mm; inserting, in a collapsed state, the self-expanding cardiac device through an aperture of a pericardium about the living heart of the patient using a minimally invasive procedure; releasing the self-expanding cardiac device to cause the self-expanding cardiac device to automatically transform from the collapsed state to an expanded state; and orienting the self-expanding cardiac device relative to the living heart. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification