Pericardial cardioverter defibrillator
First Claim
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1. A flexible implantable cardiac device configured for placement within a pericardial space, adjacent an epicardial surface having a contour, said device comprising:
- a capacitor;
a battery separate from the capacitor;
an electronic component separate from both the capacitor and the battery and adapted to sense cardiac signals and to generate cardiac stimulation signals;
a plurality of flexible interconnections adapted to couple the electronic component to the capacitor and the battery;
a flexible housing having a longitudinal axis and containing the electronic component, the capacitor, the battery and the interconnections, wherein the electronic component, the capacitor and the battery are spaced apart in a linear arrangement along the longitudinal axis of the housing such that the only physical connection between the electronic component, the capacitor and the battery is provided by the interconnections, and the spacing of the electronic component, the capacitor and the battery in combination with the flexibility of the housing and the flexibility of the interconnections provides a device configured to conform to the contour of the epicardial surface; and
four electrodes carried by the flexible housing and coupled to the electronic component, wherein the spacing of the four electrodes and the flexibility of the housing are such that the device is adaptable to form an arcuate shape whereby the four electrodes form a first pair and a second pair of substantially diametrically opposite electrodes.
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Abstract
An implantable pericardial device provides therapy to a heart of a patient. In one embodiment electronics, electrodes and other components are provided in a unitary assembly. These components may be implemented such that the unitary assembly has a sufficient degree of flexibility. The implantable pericardial device may be implanted into the pericardial space using a relatively low-invasive technique such as a sub-xiphoid approach.
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Citations
15 Claims
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1. A flexible implantable cardiac device configured for placement within a pericardial space, adjacent an epicardial surface having a contour, said device comprising:
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a capacitor; a battery separate from the capacitor; an electronic component separate from both the capacitor and the battery and adapted to sense cardiac signals and to generate cardiac stimulation signals; a plurality of flexible interconnections adapted to couple the electronic component to the capacitor and the battery; a flexible housing having a longitudinal axis and containing the electronic component, the capacitor, the battery and the interconnections, wherein the electronic component, the capacitor and the battery are spaced apart in a linear arrangement along the longitudinal axis of the housing such that the only physical connection between the electronic component, the capacitor and the battery is provided by the interconnections, and the spacing of the electronic component, the capacitor and the battery in combination with the flexibility of the housing and the flexibility of the interconnections provides a device configured to conform to the contour of the epicardial surface; and four electrodes carried by the flexible housing and coupled to the electronic component, wherein the spacing of the four electrodes and the flexibility of the housing are such that the device is adaptable to form an arcuate shape whereby the four electrodes form a first pair and a second pair of substantially diametrically opposite electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A flexible implantable cardiac device configured for placement within a pericardial space, adjacent an epicardial surface having a contour, said device comprising:
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a plurality of electrodes; a capacitor; a battery separate from the capacitor; a controller component separate from both the capacitor and the battery and comprising a microcontroller, a sense circuit, a pulse generator circuit and a shocking circuit, the controller component adapted to sense cardiac signals received via at least a portion of the electrodes and to generate cardiac stimulation signals output to at a least a portion of the electrodes; a plurality of flexible interconnections adapted to couple the controller component to the electrodes, the capacitor and the battery; a unitary, elongated and flexible housing having a longitudinal axis and at least one access hole configured to receive a guidewire, the housing containing the controller component, the capacitor, the battery and the interconnections and carrying the electrodes, wherein the controller component, the capacitor and the battery are spaced apart in a linear arrangement along the longitudinal axis of the housing such that the only physical connection between the controller component, the capacitor and the battery is provided by the interconnections, and the spacing of the controller component, the capacitor and the battery in combination with the flexibility of the housing and the flexibility of the interconnections provides a device configured to conform to the contour of the epicardial surface. - View Dependent Claims (13, 14, 15)
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Specification