Integrated filter feed-thru
First Claim
Patent Images
1. A filtered feed-thru assembly for implantable medical devices, the assembly comprising:
- (a) a header having a supportive surface with a flange on the outer perimeter thereof for attachment to an implantable housing and a first opening defined through said header;
(b) multiple electrically conductive terminal pins disposed within and extending through said first opening, said terminal pins each having respective first and second ends;
(c) an electrically insulative support for said multiple electrically conductive terminal pins, said electrically insulative support being disposed within said first opening;
(d) a discoidal capacitive device with an upper and lower side, said lower side connected to said support surface of said header, comprising a first set of electrode plates arranged to be suitable for parallel connections with said multiple electrically conductive terminal pins, a second set of electrode plates arranged to be suitable for series connections with said multiple electrically conductive terminal pins, and a second set of openings defined through said discoidal capacitive device for passage of said terminal pins, wherein said first opening through said header aligns with said second set of openings in said discoidal capacitive device when they are bonded; and
(e) wherein electrically conductive patterns are disposed on said upper side of said discoidal capacitor and an electrical component is connected to said electrically conductive patterns.
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Abstract
A multi-leaded, filter feed-thru assembly for implantable medical devices, such as heart pacemakers, defibrillators, and neurostimulators, which integrates both multi-element semiconductor devices and passive component devices, or multi-element combinations thereof, together with a discoidal capacitive filter device to provide filtration of electromagnetic interference is provided. The assembly additionally provides for the suppression of high voltage transients from defibrillation and electrocautery procedures, as well as providing additional circuit and network functions.
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Citations
49 Claims
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1. A filtered feed-thru assembly for implantable medical devices, the assembly comprising:
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(a) a header having a supportive surface with a flange on the outer perimeter thereof for attachment to an implantable housing and a first opening defined through said header;
(b) multiple electrically conductive terminal pins disposed within and extending through said first opening, said terminal pins each having respective first and second ends;
(c) an electrically insulative support for said multiple electrically conductive terminal pins, said electrically insulative support being disposed within said first opening;
(d) a discoidal capacitive device with an upper and lower side, said lower side connected to said support surface of said header, comprising a first set of electrode plates arranged to be suitable for parallel connections with said multiple electrically conductive terminal pins, a second set of electrode plates arranged to be suitable for series connections with said multiple electrically conductive terminal pins, and a second set of openings defined through said discoidal capacitive device for passage of said terminal pins, wherein said first opening through said header aligns with said second set of openings in said discoidal capacitive device when they are bonded; and
(e) wherein electrically conductive patterns are disposed on said upper side of said discoidal capacitor and an electrical component is connected to said electrically conductive patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A filtered feed-thru assembly for implantable medical devices, the assembly comprising:
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(a) a header with a flange around the outer perimeter thereof for attachment to an implantable housing and a first set of openings through said header;
(b) electrically conductive pins disposed within and extending through said first set of openings, each of said pins having respective first and second ends;
(c) a discoidal capacitive device with an upper and lower surface, said device connected to said header, said device further comprising a first set of electrode plates arranged to be suitable for electrical parallel connections with said electrically conductive pins and a second set of electrode plates arranged to be suitable for electrical series connections with said electrically conductive pins, a second set of openings formed therethrough for passage of said pins, wherein said first set of openings in said header align with said second set of openings in said discoidal capacitive device when bonded, and wherein said electrical connections are made by means of conductive polymers; and
(d) wherein electrically conductive patterns are disposed on said upper side of said discoidal capacitor and an electrical component connected to said electrically conductive patterns. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A filtered feed-thru assembly for implantable medical devices, the assembly comprising:
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(a) a header having a supportive surface with a flange around the outer perimeter thereof and a first set of openings defined through said header, said header forming a portion of an outer surface of an implantable housing;
(b) multiple electrically conductive terminal pins disposed within and extending through said first set of openings, said terminal pins each having respective first and second ends and being hermetically sealed within said first set of openings through said header;
(c) electrically insulative supports for said multiple electrically conductive terminal pins, said insulative supports being disposed within said first set of openings;
(d) a discoidal capacitive device with a lower side bonded to said supportive surface of said header by a nonconductive bonding with electrical connections made by means of conductive polymers and an upper side opposite said lower side, such that electrically conductive patterns including wire bondable pads for connection to circuitry in said implantable housing are provided, said discoidal capacitive device comprising a first set of electrodes arranged to be suitable for parallel connections with said multiple terminal pins, and a second set of electrodes arranged to be suitable for series connections with said multiple terminal pins, and said discoidal capacitive device having a second set of openings formed therethrough for passage of said terminal pins, wherein said first set of openings through said header align with said second set of openings in said discoidal capacitive device when they are bonded; and
(e) an electrical component connected to said upper side of said discoidal capacitive device. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification