BACKFILL FEATURE FOR IMPLANTABLE MEDICAL DEVICE

Abstract: in various examples, an implantable medical device includes an enclosure including an enclosure wall. a feedthrough is sealingly disposed within an opening of the enclosure wall. a backfill feature includes a backfilling channel open to an exterior of the implantable medical device. a welding protection channel is fluidly coupled to the backfilling channel and extends from the backfilling channel to an interior of the enclosure. the backfilling channel and the welding protection channel fluidly couple the exterior of the implantable medical device and the interior of the enclosure for fluid backfilling of the interior of the enclosure. the backfilling channel is configured to be sealed with welding of the backfilling channel after fluid backfilling of the interior of the enclosure. the welding protection channel is configured to catch metallic projections from the welding of the backfilling channel to inhibit the metallic projections from entering the interior of the enclosure.

Inventor(s): Ignacio Agustin Armesto, Luis Daniel Villamil, Carlos Santana

CPC Classification: A61N1/3754 (ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents ; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body ; anaesthetic apparatus in general ; incandescent lamps ; infrared radiators for heating ))

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