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  <xs:element id="bvs_LossContingencyDamagesSoughtPercentageOfDemandedAmountToBePaid" abstract="false" name="LossContingencyDamagesSoughtPercentageOfDemandedAmountToBePaid" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="bvs_IntangibleAssetsForeignCurrencyTranslationGainLoss" abstract="false" name="IntangibleAssetsForeignCurrencyTranslationGainLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_AccruedPayrollTaxesCARESAct" abstract="false" name="AccruedPayrollTaxesCARESAct" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_NumberOfEquityBasedCompensationPlans" abstract="false" name="NumberOfEquityBasedCompensationPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bvs_SupplierBMember" abstract="true" name="SupplierBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_CollaborativeArrangementRightsAndObligationsAmountPayableUponObtainingProductCertification" abstract="false" name="CollaborativeArrangementRightsAndObligationsAmountPayableUponObtainingProductCertification" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_SupplierOfSingleInjectionOAProductMember" abstract="true" name="SupplierOfSingleInjectionOAProductMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_LongTermDebtMaturityAfterYearFour" abstract="false" name="LongTermDebtMaturityAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_DefinedContributionPlanTrancheOneMember" abstract="true" name="DefinedContributionPlanTrancheOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_DebtCovenantRangeFourMember" abstract="true" name="DebtCovenantRangeFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_EquityMethodInvestmentAdditionalInvestmentToBePurchasedUponCompletionOfStudyAmount" abstract="false" name="EquityMethodInvestmentAdditionalInvestmentToBePurchasedUponCompletionOfStudyAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_CommonStockNumberOfVotes" abstract="false" name="CommonStockNumberOfVotes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="bvs_EquityParticipationRightEntitledPercentageOfDistributions" abstract="false" name="EquityParticipationRightEntitledPercentageOfDistributions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bvs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForfeitures" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForfeitures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_RestorativeTherapiesMember" abstract="true" name="RestorativeTherapiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_CollaborativeArrangementRightsAndObligationsRoyaltyPercentageThresholdOne" abstract="false" name="CollaborativeArrangementRightsAndObligationsRoyaltyPercentageThresholdOne" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bvs_DistributionRightsIncurredButNotYetPaid" abstract="false" name="DistributionRightsIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_ProductBMember" abstract="true" name="ProductBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_ProductCMember" abstract="true" name="ProductCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualPercentageIncrease" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualPercentageIncrease" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bvs_DeferredTaxLiabilitiesOrganizationalTransactions" abstract="false" name="DeferredTaxLiabilitiesOrganizationalTransactions" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_DebtCovenantRangeOneMember" abstract="true" name="DebtCovenantRangeOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_CollaborativeArrangementRightsAndObligationsRoyaltiesSalesThreshold" abstract="false" name="CollaborativeArrangementRightsAndObligationsRoyaltiesSalesThreshold" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_GrossToNetDeductionsCurrent" abstract="false" name="GrossToNetDeductionsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bvs_EquityParticipationRightUnitMember" abstract="true" name="EquityParticipationRightUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_LossContingencyDamagesSoughtAmountUnderDisputePercentageThreshold" abstract="false" name="LossContingencyDamagesSoughtAmountUnderDisputePercentageThreshold" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bvs_SharesIssuedOrIssuableRedemptionOfLLCInterestRatio" abstract="false" name="SharesIssuedOrIssuableRedemptionOfLLCInterestRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bvs_HarborMember" abstract="true" name="HarborMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bvs_DebtInstrumentLeverageRatio" abstract="false" name="DebtInstrumentLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bvs_StopLossInsuranceThresholdPerMemberPerYear" abstract="false" name="StopLossInsuranceThresholdPerMemberPerYear" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
