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  <xs:element id="huma_LongTermIncentivePlan2021Member" abstract="true" name="LongTermIncentivePlan2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_OmnibusIncentivePlan2015Member" abstract="true" name="OmnibusIncentivePlan2015Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_StockOptionPlan2005Member" abstract="true" name="StockOptionPlan2005Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAnnualIncreasePercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAnnualIncreasePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="huma_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="huma_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedVestingCommencementPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedVestingCommencementPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedVestingEndingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedVestingEndingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_DukeUniversityMember" abstract="true" name="DukeUniversityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_YaleUniversityMember" abstract="true" name="YaleUniversityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_DecellularizedTissueEngineeringPatentRightsMember" abstract="true" name="DecellularizedTissueEngineeringPatentRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_BVPPatentRightsMember" abstract="true" name="BVPPatentRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_TubularProsthesesPatentRightsMember" abstract="true" name="TubularProsthesesPatentRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_LicenseAgreementMember" abstract="true" name="LicenseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_CollaborativeArrangementMilestonePaymentsAxis" abstract="true" name="CollaborativeArrangementMilestonePaymentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="huma_CollaborativeArrangementMilestonePaymentsDomain" abstract="true" name="CollaborativeArrangementMilestonePaymentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_RegulatoryMilestoneMember" abstract="true" name="RegulatoryMilestoneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_CommercialMilestoneMember" abstract="true" name="CommercialMilestoneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_PaymentInstallmentAxis" abstract="true" name="PaymentInstallmentAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="huma_PaymentInstallmentDomain" abstract="true" name="PaymentInstallmentDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_FirstMilestonePaymentMember" abstract="true" name="FirstMilestonePaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_SecondMilestonePaymentMember" abstract="true" name="SecondMilestonePaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_ThirdMilestonePaymentMember" abstract="true" name="ThirdMilestonePaymentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_CollaborativeArrangementSharesIssued" abstract="false" name="CollaborativeArrangementSharesIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="huma_CollaborativeArrangementExpirationPeriod" abstract="false" name="CollaborativeArrangementExpirationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_TerminationPeriod" abstract="false" name="TerminationPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_CollaborativeArrangementLicenseFeePayable" abstract="false" name="CollaborativeArrangementLicenseFeePayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_CollaborativeArrangementLicenseFeesPaid" abstract="false" name="CollaborativeArrangementLicenseFeesPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_CollaborativeArrangementMaximumAnnualMaintenanceFee" abstract="false" name="CollaborativeArrangementMaximumAnnualMaintenanceFee" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_CollaborativeArrangementMilestonePayments" abstract="false" name="CollaborativeArrangementMilestonePayments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_MilestonePaymentsReceived" abstract="false" name="MilestonePaymentsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_OneTimeRoyaltyAmountActualAwardMultiplier" abstract="false" name="OneTimeRoyaltyAmountActualAwardMultiplier" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="huma_NumberOfInstallments" abstract="false" name="NumberOfInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="huma_NetSalesMinimumThresholdForAdditionalRoyalty" abstract="false" name="NetSalesMinimumThresholdForAdditionalRoyalty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_DispositionPaymentPercentage" abstract="false" name="DispositionPaymentPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="huma_CurePeriod" abstract="false" name="CurePeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_FreseniusMedicalCareMember" abstract="true" name="FreseniusMedicalCareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_FrenovaRenalResearchMember" abstract="true" name="FrenovaRenalResearchMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_FreseniusMedicalCareDeutschlandGmbHMember" abstract="true" name="FreseniusMedicalCareDeutschlandGmbHMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_LicenseExpensesMember" abstract="true" name="LicenseExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="huma_DistributionAgreementTerminationPeriod" abstract="false" name="DistributionAgreementTerminationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="huma_NumberOfServicesAgreementsEnteredInto" abstract="false" name="NumberOfServicesAgreementsEnteredInto" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="huma_NumberOfAdultPatients" abstract="false" name="NumberOfAdultPatients" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="huma_ClinicalResearchServicesExpense" abstract="false" name="ClinicalResearchServicesExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="huma_RegisteredDirectWarrantsExpiringIn180DaysMember" abstract="true" name="RegisteredDirectWarrantsExpiringIn180DaysMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_RegisteredDirectWarrantsExpiringIn1640DaysMember" abstract="true" name="RegisteredDirectWarrantsExpiringIn1640DaysMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_RegisteredDirectWarrantsMember" abstract="true" name="RegisteredDirectWarrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_RegisteredDirectOfferingMember" abstract="true" name="RegisteredDirectOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_ClassOfWarrantOrRightPurchasePriceOfOneCommonStockShareAndOneWarrant" abstract="false" name="ClassOfWarrantOrRightPurchasePriceOfOneCommonStockShareAndOneWarrant" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="huma_ShamikParikhMember" abstract="true" name="ShamikParikhMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="huma_DaleSanderMember" abstract="true" name="DaleSanderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
