Patent classifications
H03H2001/0042
Electrical connection for a hermetic terminal for an active implantable medical device utilizing a ferrule pocket
A feedthrough for an AIMD is described. The feedthrough includes an electrically conductive ferrule having a ferrule sidewall defining a ferrule opening. The ferrule sidewall has a height. At least one recessed pocket has a depth extending part-way through the height of the ferrule. An oxide-resistant pocket-pad is nested in the recessed pocket. An electrical connection material is supported on the pocket-pad for making an oxide-resistant electrical connection to the ferrule. An insulator is hermetically sealed to the ferrule in the ferrule opening. At least one active via hole extends through the insulator with an active conductive pathway residing in and hermetically sealed to the insulator in the active via hole.
Inductive-capacitive filters and associated systems and methods
An inductive-capacitive filter includes a first insulating-conductive strip wound around a winding axis, where the first insulating-conductive strip includes a first conductive strip joined with a first insulating strip. An inductive-capacitive filter assembly includes a first and a second insulating-conductive strip concentrically wound around a winding axis, the first insulating-conductive strip including a first conductive strip joined with a first insulating strip, and the second insulating-conductive strip including a second conductive strip joined with a second insulating strip.
Low equivalent series resistance RF filter circuit board for an active implantable medical device
A filtered feedthrough assembly includes a ferrule configured to be installed in an AIMD housing. An insulator is disposed within a ferrule opening. A conductive pathway is disposed within a passageway through the insulator. A filter capacitor is disposed on a device side having active and ground electrode plates disposed within a capacitor dielectric k greater than 0 and less than 1,000. A capacitor active metallization is electrically connected to the active electrode plates. A ground capacitor metallization is electrically connected to the ground electrode plates. The filter capacitor is the first filter capacitor electrically connected to the conductive pathway coming from a body fluid side into the device side. An active electrical connection electrically connects the conductive pathway to the capacitor active metallization. A ground electrical connection electrically connects the ground capacitor metallization to the ferrule. The filter capacitor is a flat-through or an X2Y attenuator filter capacitor.
INDUCTIVE-CAPACITIVE FILTERS AND ASSOCIATED SYSTEMS AND METHODS
An inductive-capacitive filter includes a first insulating-conductive strip wound around a winding axis, where the first insulating-conductive strip includes a first conductive strip joined with a first insulating strip. An inductive-capacitive filter assembly includes a first and a second insulating-conductive strip concentrically wound around a winding axis, the first insulating-conductive strip including a first conductive strip joined with a first insulating strip, and the second insulating-conductive strip including a second conductive strip joined with a second insulating strip.
MLCC filter on an aimd circuit board conductively connected to a ground pin attached to a hermetic feedthrough ferrule
An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active metallization that is electrically connected to the active electrode plates and a ground metallization that is electrically connected to the ground electrode plates of the capacitor. A ground electrical path extends from the ground metallization of the chip capacitor to the ferrule. A conductive ground pin is electrically and mechanically connected to the ferrule. The ground path comprises an internal ground plate disposed within the circuit board substrate. The internal ground plate is electrically connected to the ground metallization of the chip capacitor and to either the ferrule or the ground pin connected to the ferrule. An active electrical path extends between the active metallization of the chip capacitor and the lead wire.
NOISE FILTER AND WIRE HARNESS
The present invention provides a noise filter that can provide a wire linking a power source and a load along a desired path regardless of an installation location of the noise filter. A noise filter is connected to a wire of a wire harness linking a power source and a load and eliminates noise transmitted from the power source to the load. The noise filter includes a housing, a capacitor that is housed inside the housing, a ground terminal that is connected to the capacitor, and a noise filter wire that has a first end connected directly to the capacitor and a second end connected by splicing to a middle portion of the wire of the wire harness.
Ground electrical path from an MLCC filter capacitor on an AIMD circuit board to the ferrule of a hermetic feedthrough
An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active end metallization that is electrically connected to the active electrode plates and a ground end metallization that is electrically connected to the at least one ground electrode plates of the chip capacitor. There is a ground path electrically extending between the ground end metallization of the chip capacitor and the ferrule. The ground path comprises at least a first electrical connection material connected directly to the first gold braze, and at least an internal ground plate disposed within the circuit board substrate with the internal ground plate being electrically connected to both the first electrical connection material and the ground end metallization of the chip capacitor. An active path electrically extends between the active end metallization of the chip capacitor and the lead wire.
Electrical Connection For A Hermetic Terminal For An Active Implantable Medical Device Utilizing A Ferrule Pocket
A feedthrough for an AIMD is described. The feedthrough includes an electrically conductive ferrule having a ferrule sidewall defining a ferrule opening. The ferrule sidewall has a height. At least one recessed pocket has a depth extending part-way through the height of the ferrule. An oxide-resistant pocket-pad is nested in the recessed pocket. An electrical connection material is supported on the pocket-pad for making an oxide-resistant electrical connection to the ferrule. An insulator is hermetically sealed to the ferrule in the ferrule opening. At least one active via hole extends through the insulator with an active conductive pathway residing in and hermetically sealed to the insulator in the active via hole.
Electronic component
An electronic component includes a component base body and first and second outer electrodes covering respective end faces of the component base body. The component base body includes an element main body and a magnetic body portion covering the element main body. The element main body includes a linear inner conductor, a dielectric layer covering the periphery of part of the inner conductor, and a conductor layer formed to cover the dielectric layer.
Hermetic terminal for an active implantable medical device having a feedthrough capacitor partially overhanging a ferrule for high effective capacitance area
A filter feedthrough for an AIMD includes an electrically conductive ferrule. An insulator hermetically seals a ferrule opening with either a first gold braze, a ceramic seal, a glass seal or a glass-ceramic seal. At least one conductive pathway is hermetically sealed to and disposed through the insulator body in non-conductive relationship with the ferrule. A feedthrough capacitor includes at least one active and ground electrode plate disposed within a capacitor dielectric and electrically connected to a capacitor active metallization and a capacitor ground metallization, respectively. At least a first edge of the feedthrough capacitor extends beyond a first outermost edge of the ferrule. At least a second edge of the feedthrough capacitor does not extend beyond a second outermost edge of the ferrule, or said differently, the second edge is either aligned with or setback from the second outermost edge of the ferrule.