42 Medical and scientific research in the field of batteries, capacitors, hermetic feedthroughs, electromagnetic filtered capacitors, electromagnetic filtered hermetic feedthroughs, defibrillators, pacemakers, orthopedic implant devices, custom assembly of battery packs, custom assembly of medical device subassemblies, stimulators, spinal cord stimulators, sacral nerve stimulators, trauma medical products, advanced pacing system, and other medical products; Product research and development; Research and development of new products; Scientific research; Scientific research and development