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  <xsd:import namespace="http://fasb.org/srt/2023" schemaLocation="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd-sub/2023" schemaLocation="https://xbrl.sec.gov/ecd/2023/ecd-sub-2023.xsd" />
  <xsd:element id="anvs_NumberOfClassesOfStockDesignated" name="NumberOfClassesOfStockDesignated" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_CommonStockAndPreferredStockSharesAuthorized" name="CommonStockAndPreferredStockSharesAuthorized" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_NumberOfVotesForEachShareOfCommonStock" name="NumberOfVotesForEachShareOfCommonStock" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_PercentageOfExercisePriceToShareOfferingPrice" name="PercentageOfExercisePriceToShareOfferingPrice" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_DeferredCostsCapitalizedPrepaidExpensesAndOtherAssetsDisclosureTextBlock" name="DeferredCostsCapitalizedPrepaidExpensesAndOtherAssetsDisclosureTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="anvs_AccruedLiabilitiesAndInterestAndEmployeeRelatedLiabilitiesCurrent" name="AccruedLiabilitiesAndInterestAndEmployeeRelatedLiabilitiesCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="anvs_PrepaidResearchAndDevelopmentExpenseCurrent" name="PrepaidResearchAndDevelopmentExpenseCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="anvs_PrepaidExpenseSecurityDepositsAndOtherAssetsCurrent" name="PrepaidExpenseSecurityDepositsAndOtherAssetsCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="anvs_NatureOfBusinessAndLiquidityAbstract" name="NatureOfBusinessAndLiquidityAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_MaximumAggregateSeverancePayments" name="MaximumAggregateSeverancePayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="anvs_EquityIncentivePlan2019Member" name="EquityIncentivePlan2019Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_StockPurchaseAgreementAxis" name="StockPurchaseAgreementAxis" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_StockPurchaseAgreementDomain" name="StockPurchaseAgreementDomain" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_StockIssuedDuringPeriodSharesWarrantsExercised" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="anvs_PreviousPlansMember" name="PreviousPlansMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_ConversionOfWarrantsNumberOfWarrantsConverted" name="ConversionOfWarrantsNumberOfWarrantsConverted" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="anvs_IssuanceCostsAssociatedWithEquityIssuancesPolicyTextBlock" name="IssuanceCostsAssociatedWithEquityIssuancesPolicyTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsExercised" id="anvs_ClassOfWarrantOrRightNumberOfWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GrossProceedsFromIssuanceOfCommonStock" id="anvs_GrossProceedsFromIssuanceOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WarrantsThresholdPeriodOfNoticeForRedemption" id="anvs_WarrantsThresholdPeriodOfNoticeForRedemption" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AverageDailyTradingValue" id="anvs_AverageDailyTradingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ThresholdConsecutiveTradingDaysOfWhichAverageDailyTradingValueIsTraded" id="anvs_ThresholdConsecutiveTradingDaysOfWhichAverageDailyTradingValueIsTraded" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockIssuedDuringPeriodValueWarrantsExercised" id="anvs_StockIssuedDuringPeriodValueWarrantsExercised" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="MeasurementInputSuccessRateMember" id="anvs_MeasurementInputSuccessRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfChangesInCommonStockWarrantLiabilitiesTableTextBlock" id="anvs_ScheduleOfChangesInCommonStockWarrantLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="November2023EquityOfferingAndWarrantIssuanceMember" id="anvs_November2023EquityOfferingAndWarrantIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncreaseDecreaseInFairValueOfWarrantsAttributableToExerciseOfWarrants" id="anvs_IncreaseDecreaseInFairValueOfWarrantsAttributableToExerciseOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="WarrantsClassifiedAsEquityMember" id="anvs_WarrantsClassifiedAsEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantsClassifiedAsLiabilitiesMember" id="anvs_WarrantsClassifiedAsLiabilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightRedemptionPricePerShare" id="anvs_ClassOfWarrantOrRightRedemptionPricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CommonStockPurchaseAgreementMember" id="anvs_CommonStockPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockPurchaseAgreementSharesAuthorized" id="anvs_CommonStockPurchaseAgreementSharesAuthorized" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DisclosureOfEarningsPerShareBasicAndDilutedAbstract" id="anvs_DisclosureOfEarningsPerShareBasicAndDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareBasicNumeratorAbstract" id="anvs_EarningsPerShareBasicNumeratorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareBasicDenominatorAbstract" id="anvs_EarningsPerShareBasicDenominatorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareDilutedNumeratorAbstract" id="anvs_EarningsPerShareDilutedNumeratorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareDilutedDenominatorAbstract" id="anvs_EarningsPerShareDilutedDenominatorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingCostsFromIssuanceOfShares" id="anvs_FinancingCostsFromIssuanceOfShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NonCashFinancingCostsFromIssuanceOfShares" id="anvs_NonCashFinancingCostsFromIssuanceOfShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CashPaidForFinancingCostsDuringPeriod" id="anvs_CashPaidForFinancingCostsDuringPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonStockPurchaseAgreementCommitmentSharesMember" id="anvs_CommonStockPurchaseAgreementCommitmentSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockPurchaseAgreementTotalCommitment" id="anvs_CommonStockPurchaseAgreementTotalCommitment" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="CommonStockPurchaseAgreementVolumeWeightedAveragePricePurchaseMember" id="anvs_CommonStockPurchaseAgreementVolumeWeightedAveragePricePurchaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockPurchaseAgreementFixedPurchaseMember" id="anvs_CommonStockPurchaseAgreementFixedPurchaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockPurchaseAgreementAdditionalVolumeWeightedAveragePricePurchaseMember" id="anvs_CommonStockPurchaseAgreementAdditionalVolumeWeightedAveragePricePurchaseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockPurchaseAgreementTotalCommitmentValue" id="anvs_CommonStockPurchaseAgreementTotalCommitmentValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonStockPurchaseAgreementMaximumPurchaseOfSharesAsPercentageOfFixedPurchaseNotice" id="anvs_CommonStockPurchaseAgreementMaximumPurchaseOfSharesAsPercentageOfFixedPurchaseNotice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CommonStockPurchaseAgreementThresholdPercentageOfTradingVolume" id="anvs_CommonStockPurchaseAgreementThresholdPercentageOfTradingVolume" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CommonStockPurchaseAgreementPurchasePricePercentage" id="anvs_CommonStockPurchaseAgreementPurchasePricePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ConsultingAgreementMember" id="anvs_ConsultingAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantLiabilityNoncurrent" id="anvs_WarrantLiabilityNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromExerciseOfWarrants" id="anvs_ProceedsFromExerciseOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WarrantCommissionsPayable" id="anvs_WarrantCommissionsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GainLossOnChangesInFairValueOfWarrantLiability" id="anvs_GainLossOnChangesInFairValueOfWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FairValueAdjustmentOfDerivativeLiabilities" id="anvs_FairValueAdjustmentOfDerivativeLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NonCashTransactionValueOfConsiderationWarrantExercises" id="anvs_NonCashTransactionValueOfConsiderationWarrantExercises" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EquityLineOfCreditSharesMember" id="anvs_EquityLineOfCreditSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityLineOfCreditDerivativeLiabilityMember" id="anvs_EquityLineOfCreditDerivativeLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
