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  <xsd:element name="SubleaseStorageSpaceMember" id="vani_SubleaseStorageSpaceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="SubleaseForManufacturingFacilityMember" id="vani_SubleaseForManufacturingFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="RightOfUseAssetsAndOperatingLeaseLiabilitiesLineItems" id="vani_RightOfUseAssetsAndOperatingLeaseLiabilitiesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="MaximumPeriodForLeaseTermWhichAreNotRecordedOnBalanceSheet" id="vani_MaximumPeriodForLeaseTermWhichAreNotRecordedOnBalanceSheet" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="LeaseEffectiveDate" id="vani_LeaseEffectiveDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="ClinicalAndRegulatoryExpense" id="vani_ClinicalAndRegulatoryExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="LiquidatedDamagesPaidValue" id="vani_LiquidatedDamagesPaidValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="BiopharmDivisionMember" id="vani_BiopharmDivisionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="NeuromodulationDivisionMember" id="vani_NeuromodulationDivisionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="DevelopmentExpense" id="vani_DevelopmentExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProfessionalServicesAndInsuranceExpense" id="vani_ProfessionalServicesAndInsuranceExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ExpectedProceedsFromSalesOfCommonStockInConnectionWithPrivateSaleGross" id="vani_ExpectedProceedsFromSalesOfCommonStockInConnectionWithPrivateSaleGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CashSPICInsuredAmount" id="vani_CashSPICInsuredAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="SPICCashLimitCoverage" id="vani_SPICCashLimitCoverage" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="SaleOfCommonStockAtDirectOfferingPricePerShare" id="vani_SaleOfCommonStockAtDirectOfferingPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="StockOptionsWithServiceVestingMember" id="vani_StockOptionsWithServiceVestingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" id="vani_StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" id="vani_StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" id="vani_StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" id="vani_StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithPrivatePlacement" id="vani_StockIssuedDuringPeriodValueIssuanceOfCommonStockInConnectionWithPrivatePlacement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithPrivatePlacement" id="vani_StockIssuedDuringPeriodSharesIssuanceOfCommonStockInConnectionWithPrivatePlacement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" id="vani_ProceedsFromIssuanceOfCommonStockInConnectionWithPrivatePurchaseNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" id="vani_ProceedsFromIssuanceOfCommonStockInConnectionWithRegisteredDirectOfferingNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockInConnectionWithPrivatePlacementNetOfIssuanceCosts" id="vani_ProceedsFromIssuanceOfCommonStockInConnectionWithPrivatePlacementNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="LicenseAndSupplyAgreementMember" id="vani_LicenseAndSupplyAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="OkavaPharmaceuticalsIncMember" id="vani_OkavaPharmaceuticalsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="NumberOfTrancheClosed" id="vani_NumberOfTrancheClosed" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockInConnectionWithDirectOfferingNetOfIssuanceExpense" id="vani_ProceedsFromIssuanceOfCommonStockInConnectionWithDirectOfferingNetOfIssuanceExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IssuanceOfCommonStockInConnectionWithDirectOfferingIssuanceExpense" id="vani_IssuanceOfCommonStockInConnectionWithDirectOfferingIssuanceExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ClearOneIncMember" id="vani_ClearOneIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="NeurostimulationDivisionMember" id="vani_NeurostimulationDivisionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="ContractLiabilitiesWriteOff" id="vani_ContractLiabilitiesWriteOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsToAdditionalPaidInCapitalCommonStockAndWarrantsIssuedInConnectionWithAtMarketOfferingIssuanceCosts" id="vani_AdjustmentsToAdditionalPaidInCapitalCommonStockAndWarrantsIssuedInConnectionWithAtMarketOfferingIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="GainOnDerecognitionOfContractLiabilities" id="vani_GainOnDerecognitionOfContractLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForGainOnDerecognitionOfContractLiabilities" id="vani_AdjustmentsForGainOnDerecognitionOfContractLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
</xsd:schema>
