Capacitor for an implantable cardiac defibrillator
First Claim
1. An implantable cardiac defibrillator comprising:
- an outer housing;
an energy source within the outer housing;
a capacitor connected to the energy source and within the housing;
the capacitor comprising a capacitor housing haying at least a major portion thereof electrically conductive and defining a chamber, and a plurality of flat, stacked, charge storing layers within the chamber;
the capacitor housing including at least two alignment elements within the chamber;
the layers each defining at least two alignment holes registered with the alignment elements, such that the layers are positioned precisely with respect to each other and to the housing; and
wherein the alignment elements include non conductive insulators such that the alignment holes of the layers do not directly contact the electrically conductive portion of the capacitor housing.
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Accused Products
Abstract
A capacitor having a housing defining a chamber, and having at least two internal alignment elements in the chamber. A plurality of capacitor layers, each having alignment holes formed therein to precisely fit the housing'"'"'s alignment elements, is positioned within the chamber, with the alignment holes mating with the alignment elements. The housing may be electrically conductive and used to connect some capacitor elements, in which case the alignment elements include non conductive spacers that contact the alignment holes of the sheets. The housing may also include external index elements for precisely positioning the housing in registration with fixtures used for manufacturing processes requiring precise alignment.
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Citations
17 Claims
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1. An implantable cardiac defibrillator comprising:
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an outer housing; an energy source within the outer housing; a capacitor connected to the energy source and within the housing; the capacitor comprising a capacitor housing haying at least a major portion thereof electrically conductive and defining a chamber, and a plurality of flat, stacked, charge storing layers within the chamber; the capacitor housing including at least two alignment elements within the chamber; the layers each defining at least two alignment holes registered with the alignment elements, such that the layers are positioned precisely with respect to each other and to the housing; and wherein the alignment elements include non conductive insulators such that the alignment holes of the layers do not directly contact the electrically conductive portion of the capacitor housing.
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- 2. The defibrillator of claim 2 wherein the alignment elements include cylindrical portions.
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6. An implantable cardiac defibrillator comprising:
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an outer housing; an energy source within the outer housing; a capacitor connected to the energy source and within the housing; the capacitor comprising a capacitor housing defining a chamber, and a plurality of flat, stacked, charge storing layers within the chamber; the capacitor housing including at least two alignment elements within the chamber; the layers each defining at least two alignment holes registered with the alignment elements, such that the layers are positioned precisely with respect to each other and to the housing; and wherein the capacitor housing includes a base pan defining the bottom and sides of the chamber, and a lid defining the top of the chamber. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A capacitor for an implantable cardiac defibrillator comprising:
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a housing defining a chamber; a plurality of planar charge storing layers within the chamber; the housing including at least two insulated alignment elements within the chamber; the layers each defining at least two alignment holes closely receiving the alignment elements, such that the layers are positioned precisely with respect to each other and to the housing. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification