ElectrodesElectrodes, ImplantedCochlear ImplantationIon-Selective ElectrodesEmbryo Implantation, DelayedElectrochemistryLens Implantation, IntraocularElectrochemical TechniquesPacemaker, ArtificialEquipment DesignMicroelectrodesCochlear ImplantsProsthesis DesignUterusTreatment OutcomeProstheses and ImplantsStentsPregnancyTime FactorsPotentiometryEndometriumFluorocarbon PolymersBiosensing TechniquesGraphiteDefibrillators, ImplantableEmbryo TransferElectric StimulationAortic Valve StenosisGoldElectric Stimulation TherapyCardiac CatheterizationDrug-Eluting StentsElectric ImpedanceLenses, IntraocularCardiac Pacing, ArtificialEquipment Failure AnalysisFollow-Up StudiesConductometryDeciduaDeafnessBioprosthesisPenile ImplantationCoronary RestenosisEnzymes, ImmobilizedHeart-Assist DevicesEquipment FailureElectric CountershockDrug ImplantsAortic ValveCarbonFertilization in VitroElectroencephalographyDeep Brain StimulationTrophoblastsBlood Vessel Prosthesis ImplantationSirolimusImplants, ExperimentalElectricityRetrospective StudiesProspective StudiesProsthesis FailurePregnancy RateAction PotentialsAngioplasty, Balloon, CoronarySilver CompoundsVisual ProsthesisElectromyographyCoronary AngiographyFeasibility StudiesBioelectric Energy SourcesScala TympaniSubdural SpacePlatinumElectrophysiologyAtrioventricular BlockAbsorbable ImplantsUltrasonography, InterventionalPostoperative ComplicationsBiocompatible MaterialsTin CompoundsCoated Materials, BiocompatibleDevice RemovalNeural ProsthesesStereotaxic TechniquesPregnancy, AnimalCataract ExtractionPseudopregnancyCardiac Resynchronization Therapy DevicesSignal Processing, Computer-AssistedAlloysCalibrationPolymersPolyvinyl ChlorideCoronary SinusDielectric SpectroscopyCatheterizationGlaucoma Drainage ImplantsPhacoemulsificationElectrocardiographyHeart Block