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  <xsd:element abstract="true" id="tivc_LabEquipmentMember" name="LabEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_LesseeOperatingLeaseAnnualLeasePayments" name="LesseeOperatingLeaseAnnualLeasePayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_LesseeOperatingLeaseAnnualRentIncreasePercentage" name="LesseeOperatingLeaseAnnualRentIncreasePercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LesseeOperatingLeaseBaseRent" name="LesseeOperatingLeaseBaseRent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LesseeOperatingLeaseMonthlyRentPayments" name="LesseeOperatingLeaseMonthlyRentPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_LesseeOperatingLeaseOptionToPurchaseAmount" name="LesseeOperatingLeaseOptionToPurchaseAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LessorOperatingLeaseAnnualRentIncreasePercentage" name="LessorOperatingLeaseAnnualRentIncreasePercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LicenseAgreementMaximumLienPayoffAmount" name="LicenseAgreementMaximumLienPayoffAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LicenseAgreementMilestonePayments" name="LicenseAgreementMilestonePayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_LicenseAgreementPaymentPercentage" name="LicenseAgreementPaymentPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_LicenseAgreementTextBlock" name="LicenseAgreementTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_LongtermDebtMaturityAfterYearFour" name="LongtermDebtMaturityAfterYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="tivc_MammalianBuildingLeaseMember" name="MammalianBuildingLeaseMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ManufacturingToolsAndDiesMember" name="ManufacturingToolsAndDiesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_MastHillPurchaseAgreementMember" name="MastHillPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_MaximMember" name="MaximMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_MaximumPercentageOfNetProceedsFromEquityFinancingToRedeemPreferredStock" name="MaximumPercentageOfNetProceedsFromEquityFinancingToRedeemPreferredStock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_MaximumReimbursementExpenses" name="MaximumReimbursementExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_MicrobialBuildingLeaseMember" name="MicrobialBuildingLeaseMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone1Member" name="Milestone1Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone2Member" name="Milestone2Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone3Member" name="Milestone3Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone4Member" name="Milestone4Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone5Member" name="Milestone5Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone6Member" name="Milestone6Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone7Member" name="Milestone7Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_Milestone8Member" name="Milestone8Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_NoncashInvestingAndFinancingActivitiesDeemedDividendsAmount" name="NoncashInvestingAndFinancingActivitiesDeemedDividendsAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_NoncashInvestingAndFinancingActivitiesDividendsDeclaredAmount" name="NoncashInvestingAndFinancingActivitiesDividendsDeclaredAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_NoncashWriteoffOfRouAssetsAndLeaseLiabilities" name="NoncashWriteoffOfRouAssetsAndLeaseLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_NoteOfferingWarrantMember" name="NoteOfferingWarrantMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_OfficeSubleaseMember" name="OfficeSubleaseMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_OperatingLeaseImplicitRatePercent" name="OperatingLeaseImplicitRatePercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLeaseIncrementalBorrowingRatePercent" name="OperatingLeaseIncrementalBorrowingRatePercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLeaseTerminationFee" name="OperatingLeaseTerminationFee" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLossCarryforwardsCanBeCarriedForwardIndefinitely" name="OperatingLossCarryforwardsCanBeCarriedForwardIndefinitely" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLossCarryforwardsCanBeUtilizedEachYear" name="OperatingLossCarryforwardsCanBeUtilizedEachYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLossCarryforwardsIncurredPriorToOwnershipChange" name="OperatingLossCarryforwardsIncurredPriorToOwnershipChange" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OperatingLossCarryforwardsSubjectToExpire" name="OperatingLossCarryforwardsSubjectToExpire" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OtherAccruedLiabilitiesOtherCurrent" name="OtherAccruedLiabilitiesOtherCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="tivc_OwnershipOfStockOptionGrants" name="OwnershipOfStockOptionGrants" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="tivc_ParentOrSubsidiaryOfCompanyMember" name="ParentOrSubsidiaryOfCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_PaymentsForServicesCashFee" name="PaymentsForServicesCashFee" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_PaymentsForServicesValueOfCommonStockPercent" name="PaymentsForServicesValueOfCommonStockPercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_PaymentsOfRefundsOfStockIssuanceCosts" name="PaymentsOfRefundsOfStockIssuanceCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_PaymentsOfReimbursementOfExpenses" name="PaymentsOfReimbursementOfExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_PaymentsOfStockIssuanceCostsFractionalShares" name="PaymentsOfStockIssuanceCostsFractionalShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_PolicyTable" name="PolicyTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_PotentialDevelopmentMilestonesMember" name="PotentialDevelopmentMilestonesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_PreferredPurchaseAgreementMember" name="PreferredPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_PreferredPurchaseAgreementPlacementAgentMember" name="PreferredPurchaseAgreementPlacementAgentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_PreferredStockConvertibleConversionPricePercent" name="PreferredStockConvertibleConversionPricePercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_PreferredStockConvertibleRedeemablePricePercent" name="PreferredStockConvertibleRedeemablePricePercent" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_PreferredStockStatedValue" name="PreferredStockStatedValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="tivc_PrefundedWarrantsMember" name="PrefundedWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock" name="PrepaidExpensesAndOtherCurrentAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ProceedsFromIssuanceOfCommonStockAndWarrants" name="ProceedsFromIssuanceOfCommonStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ProceedsFromIssuanceOfCommonStockNet" name="ProceedsFromIssuanceOfCommonStockNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ProceedsFromIssuanceOfPreferredStockAndWarrants" name="ProceedsFromIssuanceOfPreferredStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ProceedsFromIssuanceOrSaleOfEquityGross" name="ProceedsFromIssuanceOrSaleOfEquityGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ProfessionalFeesBringdown" name="ProfessionalFeesBringdown" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_RegisteredPublicOfferingMember" name="RegisteredPublicOfferingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_RegisteredPublicOfferingPlacementAgentMember" name="RegisteredPublicOfferingPlacementAgentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ReturnsPolicyTextBlock" name="ReturnsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ReverseStockSplitMember" name="ReverseStockSplitMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ReverseStockSplitPolicyTextBlock" name="ReverseStockSplitPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_ScheduleOfMilestonePaymentsTableTextBlock" name="ScheduleOfMilestonePaymentsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ScorpiusHoldingsMember" name="ScorpiusHoldingsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SecondTrancheClosingMember" name="SecondTrancheClosingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SecondTrancheClosingPlacementAgentServicesMember" name="SecondTrancheClosingPlacementAgentServicesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SecondTrancheInvestorWarrantsMember" name="SecondTrancheInvestorWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SecondTrancheWarrantsMember" name="SecondTrancheWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesAWarrantsMember" name="SeriesAWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesBDividendsMember" name="SeriesBDividendsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesBPreferredStockAndWarrantsMember" name="SeriesBPreferredStockAndWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesBWarrantsMember" name="SeriesBWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesCDividendsMember" name="SeriesCDividendsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_SeriesCPreferredStockAndWarrantsMember" name="SeriesCPreferredStockAndWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledInPeriod" name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledInPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardExercisePricePercentOfMarketValuePerShare" name="SharebasedCompensationArrangementBySharebasedPaymentAwardExercisePricePercentOfMarketValuePerShare" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantAddedPerAmendmentAnnualShMtg" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantAddedPerAmendmentAnnualShMtg" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsExercised" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsExpired" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsExpired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsForfeited" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsForfeited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsGranted" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsRoundedForReverseStockSplit" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantOptionsRoundedForReverseStockSplit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantReservedSharesCancelled" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantReservedSharesCancelled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsasGranted" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsasGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsusForfeited" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsusForfeited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsusGranted" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantRsusGranted" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantSharesReservedForIssuance" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNumberOfSharesAvailableForGrantSharesReservedForIssuance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsRoundedForReverseStockSplit" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOptionsRoundedForReverseStockSplit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedCompensationArrangementBySharebasedPaymentAwardRsusGrantsInPeriodWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardRsusGrantsInPeriodWeightedAverageGrantDateFairValue" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedPaymentArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" name="SharebasedPaymentArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SharebasedPaymentArrangementBySharebasedPaymentAwardNumberOfAdditionalSharesAuthorizedPercentageOfSharesOutstanding" name="SharebasedPaymentArrangementBySharebasedPaymentAwardNumberOfAdditionalSharesAuthorizedPercentageOfSharesOutstanding" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="tivc_StateraAndAvenueSecuritiesPurchaseAgreementMember" name="StateraAndAvenueSecuritiesPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_StateraLicenseAgreementMember" name="StateraLicenseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_StateraLicenseAgreementNeutropeniaOptionMember" name="StateraLicenseAgreementNeutropeniaOptionMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_StateraMember" name="StateraMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_StateraSecuritiesPurchaseAgreementMember" name="StateraSecuritiesPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesCommonStockAndWarrants" name="StockIssuedDuringPeriodSharesCommonStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesEquityLineOfCredit" name="StockIssuedDuringPeriodSharesEquityLineOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesExerciseOfWarrants" name="StockIssuedDuringPeriodSharesExerciseOfWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesFractionalShares" name="StockIssuedDuringPeriodSharesFractionalShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesPreferredStockAndWarrants" name="StockIssuedDuringPeriodSharesPreferredStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesTotalWholeSharesIssuedInsteadOfFractionalShares" name="StockIssuedDuringPeriodSharesTotalWholeSharesIssuedInsteadOfFractionalShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodSharesWholeSharesIssuedInsteadOfFractionalShares" name="StockIssuedDuringPeriodSharesWholeSharesIssuedInsteadOfFractionalShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodValueCommonStockAndWarrants" name="StockIssuedDuringPeriodValueCommonStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodValueEquityLineOfCredit" name="StockIssuedDuringPeriodValueEquityLineOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodValueExerciseOfWarrants" name="StockIssuedDuringPeriodValueExerciseOfWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_StockIssuedDuringPeriodValuePreferredStockAndWarrants" name="StockIssuedDuringPeriodValuePreferredStockAndWarrants" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_SummaryOfReservedSharesOfStockTableTextBlock" name="SummaryOfReservedSharesOfStockTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_TemporaryEquityPolicyTextBlock" name="TemporaryEquityPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_The2021PlanMember" name="The2021PlanMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ThinkequityMember" name="ThinkequityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ThirdTrancheClosingMember" name="ThirdTrancheClosingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ThirdTrancheClosingPlacementAgentServicesMember" name="ThirdTrancheClosingPlacementAgentServicesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ThirdTrancheInvestorWarrantsMember" name="ThirdTrancheInvestorWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_TrancheClosingMember" name="TrancheClosingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_TrancheClosingPlacementAgentServicesMember" name="TrancheClosingPlacementAgentServicesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_TrancheClosingWarrantsMember" name="TrancheClosingWarrantsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_TumimPurchaseAgreementMember" name="TumimPurchaseAgreementMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_TwoWarrantsIssuedInAugust2025Member" name="TwoWarrantsIssuedInAugust2025Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_ValidationOfCurrentInventoryOfMaterialsForDistributionAndSalesMember" name="ValidationOfCurrentInventoryOfMaterialsForDistributionAndSalesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_WarrantsAndRightsDisclosureTextBlock" name="WarrantsAndRightsDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringAugust112029Member" name="WarrantsExpiringAugust112029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringAugust212029Member" name="WarrantsExpiringAugust212029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringAugust212030Member" name="WarrantsExpiringAugust212030Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringAugust42028Member" name="WarrantsExpiringAugust42028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringAugust92027Member" name="WarrantsExpiringAugust92027Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringDecember1020301Member" name="WarrantsExpiringDecember1020301Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringDecember1020302Member" name="WarrantsExpiringDecember1020302Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJuly102028Member" name="WarrantsExpiringJuly102028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJuly12026Member" name="WarrantsExpiringJuly12026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJuly142028Member" name="WarrantsExpiringJuly142028Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJuly312029Member" name="WarrantsExpiringJuly312029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJuly312030Member" name="WarrantsExpiringJuly312030Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJune252029Member" name="WarrantsExpiringJune252029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringJune252030Member" name="WarrantsExpiringJune252030Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringMay142029Member" name="WarrantsExpiringMay142029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringMay92029Member" name="WarrantsExpiringMay92029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringNovember102026Member" name="WarrantsExpiringNovember102026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringNovember152026Member" name="WarrantsExpiringNovember152026Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringSeptember262029Member" name="WarrantsExpiringSeptember262029Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_WarrantsExpiringSeptember262030Member" name="WarrantsExpiringSeptember262030Member" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="tivc_WarrantsIssued1" name="WarrantsIssued1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_WarrantsIssuedInExchangeForDerivativeLiability" name="WarrantsIssuedInExchangeForDerivativeLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="tivc_WriteOffOfOfferingCostsFromUnclosedArrangement" name="WriteOffOfOfferingCostsFromUnclosedArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-10-other-accrued-expenses-summary-of-other-accrued-expenses-details" name="statement-statement-note-10-other-accrued-expenses-summary-of-other-accrued-expenses-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-10-other-accrued-expenses-tables" name="statement-statement-note-10-other-accrued-expenses-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-11-convertible-note-payable-future-payments-of-the-note-payable-details" name="statement-statement-note-11-convertible-note-payable-future-payments-of-the-note-payable-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-11-convertible-note-payable-schedule-of-note-payable-details" name="statement-statement-note-11-convertible-note-payable-schedule-of-note-payable-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-11-convertible-note-payable-tables" name="statement-statement-note-11-convertible-note-payable-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-13-common-stock-summary-of-reserved-shares-of-common-stock-details" name="statement-statement-note-13-common-stock-summary-of-reserved-shares-of-common-stock-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-13-common-stock-tables" name="statement-statement-note-13-common-stock-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-14-common-stock-warrants-fair-value-measurements-of-warrants-details" name="statement-statement-note-14-common-stock-warrants-fair-value-measurements-of-warrants-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-14-common-stock-warrants-summary-of-outstanding-warrants-details" name="statement-statement-note-14-common-stock-warrants-summary-of-outstanding-warrants-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-14-common-stock-warrants-tables" name="statement-statement-note-14-common-stock-warrants-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-15-equity-incentive-plans-fair-value-of-sharedbased-payment-awards-details" name="statement-statement-note-15-equity-incentive-plans-fair-value-of-sharedbased-payment-awards-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-15-equity-incentive-plans-options-activity-details" name="statement-statement-note-15-equity-incentive-plans-options-activity-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-15-equity-incentive-plans-summary-of-restricted-stock-awards-details" name="statement-statement-note-15-equity-incentive-plans-summary-of-restricted-stock-awards-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-15-equity-incentive-plans-summary-of-stockbased-compensation-details" name="statement-statement-note-15-equity-incentive-plans-summary-of-stockbased-compensation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-15-equity-incentive-plans-tables" name="statement-statement-note-15-equity-incentive-plans-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-16-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" name="statement-statement-note-16-income-taxes-schedule-of-deferred-tax-assets-and-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-16-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details" name="statement-statement-note-16-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-16-income-taxes-schedule-of-unrecognized-tax-benefits-details" name="statement-statement-note-16-income-taxes-schedule-of-unrecognized-tax-benefits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-16-income-taxes-tables" name="statement-statement-note-16-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-17-net-loss-per-share-calculation-of-earnings-per-share-details" name="statement-statement-note-17-net-loss-per-share-calculation-of-earnings-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-17-net-loss-per-share-summary-of-antidilutive-securities-details" name="statement-statement-note-17-net-loss-per-share-summary-of-antidilutive-securities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-17-net-loss-per-share-tables" name="statement-statement-note-17-net-loss-per-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-18-revision-of-previously-issued-financial-statements-schedule-of-revised-financial-statements-details" name="statement-statement-note-18-revision-of-previously-issued-financial-statements-schedule-of-revised-financial-statements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-18-revision-of-previously-issued-financial-statements-tables" name="statement-statement-note-18-revision-of-previously-issued-financial-statements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-19-segment-information-schedule-of-segment-information-details" name="statement-statement-note-19-segment-information-schedule-of-segment-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-19-segment-information-tables" name="statement-statement-note-19-segment-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-3-discontinued-operations-significant-items-from-discontinued-operations-details" name="statement-statement-note-3-discontinued-operations-significant-items-from-discontinued-operations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-3-discontinued-operations-tables" name="statement-statement-note-3-discontinued-operations-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-4-business-combination-assets-acquired-and-liabilities-assumed-details" name="statement-statement-note-4-business-combination-assets-acquired-and-liabilities-assumed-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-4-business-combination-schedule-of-pro-forma-information-details" name="statement-statement-note-4-business-combination-schedule-of-pro-forma-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-4-business-combination-tables" name="statement-statement-note-4-business-combination-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-5-financial-instruments-and-fair-value-measurements-schedule-of-recurring-fair-value-measurements-details" name="statement-statement-note-5-financial-instruments-and-fair-value-measurements-schedule-of-recurring-fair-value-measurements-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-5-financial-instruments-and-fair-value-measurements-summary-of-cash-equivalents-fair-value-details" name="statement-statement-note-5-financial-instruments-and-fair-value-measurements-summary-of-cash-equivalents-fair-value-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-5-financial-instruments-and-fair-value-measurements-tables" name="statement-statement-note-5-financial-instruments-and-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-6-inventory-net-summary-of-inventory-details" name="statement-statement-note-6-inventory-net-summary-of-inventory-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-6-inventory-net-tables" name="statement-statement-note-6-inventory-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-7-property-and-equipment-net-summary-of-property-and-equipment-details" name="statement-statement-note-7-property-and-equipment-net-summary-of-property-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-7-property-and-equipment-net-tables" name="statement-statement-note-7-property-and-equipment-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-8-statera-license-agreement-schedule-of-milestone-payments-details" name="statement-statement-note-8-statera-license-agreement-schedule-of-milestone-payments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-8-statera-license-agreement-tables" name="statement-statement-note-8-statera-license-agreement-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-9-commitments-and-contingencies-lease-costs-details" name="statement-statement-note-9-commitments-and-contingencies-lease-costs-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-note-9-commitments-and-contingencies-tables" name="statement-statement-note-9-commitments-and-contingencies-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="tivc_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
