DUAL-CHAMBER LEADLESS INTRA-CARDIAC MEDICAL DEVICE WITH INTRA-CARDIAC EXTENSION
First Claim
15. A method for implanting a leadless intra-cardiac medical device (LIMD), the LIMD including a housing with a base, a first electrode provided on the housing, an intra-cardiac extension having a proximal end, a distal end and an extension body extending there between, the proximal end coupled to the, the extension body including a stabilization extension provided at the distal end of the intra-cardiac extension, and an active interim-segment located at an intermediate point along the extension body between the stabilization extension and the proximal end of the intra-cardiac extension, a second electrode provided on the active interim-segment, the method comprising:
- guiding the housing, utilizing an introducer, to a local activation site within a conductive network of the local chamber;
positioning the first electrode to engage wall tissue at the local activation site within the conductive network of the local chamber;
actively securing the housing to tissue of interest at the local activation site;
guiding the active interim-segment, utilizing the introducer, to a distal activation site within a conductive network of an adjacent chamber;
positioning the second electrode to engage tissue of interest at the distal activation site within the conductive network of the adjacent chamber; and
configuring a controller within the housing to cause stimulus pulses to be delivered, in a dual chamber synchronous manner, through the first electrode to the local activation site, and through the second electrode to the distal activation site.
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Accused Products
Abstract
A leadless intra-cardiac medical device includes a housing that is configured to be implanted entirely within a single local chamber of the heart. A first electrode is provided on the housing at a first position such that when the housing is implanted in the local chamber, the first electrode engages the local wall tissue at a local activation site within the conduction network of the local chamber. An intra-cardiac extension is coupled to the housing and configured to extend from the local chamber into an adjacent chamber of the heart. A stabilization arm of the intra-cardiac extension engages the adjacent chamber. A second electrode on the intra-cardiac extension engages distal wall tissue at a distal activation site within the conduction network of the adjacent chamber.
144 Citations
25 Claims
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15. A method for implanting a leadless intra-cardiac medical device (LIMD), the LIMD including a housing with a base, a first electrode provided on the housing, an intra-cardiac extension having a proximal end, a distal end and an extension body extending there between, the proximal end coupled to the, the extension body including a stabilization extension provided at the distal end of the intra-cardiac extension, and an active interim-segment located at an intermediate point along the extension body between the stabilization extension and the proximal end of the intra-cardiac extension, a second electrode provided on the active interim-segment, the method comprising:
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guiding the housing, utilizing an introducer, to a local activation site within a conductive network of the local chamber; positioning the first electrode to engage wall tissue at the local activation site within the conductive network of the local chamber; actively securing the housing to tissue of interest at the local activation site; guiding the active interim-segment, utilizing the introducer, to a distal activation site within a conductive network of an adjacent chamber; positioning the second electrode to engage tissue of interest at the distal activation site within the conductive network of the adjacent chamber; and configuring a controller within the housing to cause stimulus pulses to be delivered, in a dual chamber synchronous manner, through the first electrode to the local activation site, and through the second electrode to the distal activation site. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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25-1. The method of claim 15, further comprising configuring the controller to control delivery of the stimulus pulses from the first and second electrodes in accordance with a DDD pacing mode to a left atrium and left ventricle, while the housing is entirely located in left side of the heart.
Specification