Medical device with low EMI leakage
AssigneeMedtronic, Inc.
InventorsJohn P. Fluegel, John M. Kruse, Paul T. Simonette
Life of this patent
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Abstract
A medical device is configured to attenuate emission of electromagnetic radiation and comprises a housing, a circuit assembly mounted in the housing, and a panel coupled to the housing and to the circuit assembly. The panel comprises a first conductive region on an interior surface of the panel that is configured to be capacitively coupled to the ground, an opening substantially adjacent to the first conductive region, a second conductive region on the interior surface that is configured to be coupled to ground, and a non-conductive region on the interior surface between the first conductive region and the second conductive region.
Claims13
A medical device configured to attenuate emission of electromagnetic radiation, comprising:
- a housing formed by an enclosure and a panel having an interior surface, wherein said panel comprises a printed circuit board;
- and
- a circuit assembly mounted within said housing;
- said panel comprising:
- an opening through the panel to accept an electrical coupling to the circuit assembly, said opening having a non-conductive grommet;
- said interior surface having a first conductive region substantially surrounding the opening;
- said interior surface having a second conductive region, the second conductive region being spaced from the first conductive region;
- said interior surface having a non-conductive region between said first conductive region and said second conductive region;
- and
- means for providing a path to ground from the first conductive region and the second conductive region for radio frequency interference signals above a predetermined frequency.
A medical device configured to attenuate emission of electromagnetic radiation, comprising:
- a housing formed by an enclosure and a panel having an interior surface;
- a circuit assembly including a connector plug mounted in said panel;
- said panel being coupled to said electrical circuit assembly, said panel comprising:
- an interior surface having a first conductive region;
- and
- an opening substantially surrounded by said first conductive region;
- said interior surface having a second conductive region;
- and
- a non-conductive region on said interior surface between said first conductive region and said second conductive region;
- at least one capacitor electrically coupled between said first conductive region and said second conductive region;
- a conductive shield coupled to said connector plug;
- and
- a conductive clip electrically coupling said conductive shield to said first conductive region.
Dependencies are inferred from the claim text.