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  <xs:element id="bsx_March2032EuroSeniorNotesMember" abstract="true" name="March2032EuroSeniorNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bsx_March2034Notes2Member" abstract="true" name="March2034Notes2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bsx_FinancialLeaseObligationMember" abstract="true" name="FinancialLeaseObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_The2025OfferingAggregatePrincipalAmountMember" abstract="true" name="The2025OfferingAggregatePrincipalAmountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_A2025EurobondOfferingSNsMember" abstract="true" name="A2025EurobondOfferingSNsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_March2025NotesMember" abstract="true" name="March2025NotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bsx_A2021RevolvingCreditAgreementMember" abstract="true" name="A2021RevolvingCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_CovenantAxis" abstract="true" name="CovenantAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="bsx_CovenantDomain" abstract="true" name="CovenantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RequirementAsOfDecember312021AndThroughRemainingTermOfFacilityMember" abstract="true" name="RequirementAsOfDecember312021AndThroughRemainingTermOfFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RequirementFourSucceedingQuartersFollowingQualifiedAcquisitionMember" abstract="true" name="RequirementFourSucceedingQuartersFollowingQualifiedAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bsx_RequirementSixthQuarterFollowingQualifiedAcquisitionMember" abstract="true" name="RequirementSixthQuarterFollowingQualifiedAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RequirementSeventhQuarterFollowingQualifiedAcquisitionMember" abstract="true" name="RequirementSeventhQuarterFollowingQualifiedAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RequirementEighthQuarterFollowingQualifiedAcquisitionAndThroughRemainingTermOfFacilityMember" abstract="true" name="RequirementEighthQuarterFollowingQualifiedAcquisitionAndThroughRemainingTermOfFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_A364DayRevolvingCreditAgreementMember" abstract="true" name="A364DayRevolvingCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_TermLoanCreditAgreementMember" abstract="true" name="TermLoanCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_TrancheBLoanMember" abstract="true" name="TrancheBLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_TrancheALoanMember" abstract="true" name="TrancheALoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_MaximumLeverageRatio" abstract="false" name="MaximumLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="bsx_QualifiedAcquisitionConsideration" abstract="false" name="QualifiedAcquisitionConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_LegalPaymentsRemainingToBeExcludedFromCalculationOfConsolidatedEbitda" abstract="false" name="LegalPaymentsRemainingToBeExcludedFromCalculationOfConsolidatedEbitda" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_LitigationPaymentExclusionFromEBITDA" abstract="false" name="LitigationPaymentExclusionFromEBITDA" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bsx_EuroDenominatedFactoringArrangementsMember" abstract="true" name="EuroDenominatedFactoringArrangementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_YenDenominatedFactoringArrangementsMember" abstract="true" name="YenDenominatedFactoringArrangementsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_EquipmentFurnitureAndFixturesGross" abstract="false" name="EquipmentFurnitureAndFixturesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_EffectiveIncomeTaxRateReconciliationContinuingOperationsRatePercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationContinuingOperationsRatePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="bsx_RevenuesFromContractsWithCustomersDisaggregatedPerformanceMeasurement" abstract="false" name="RevenuesFromContractsWithCustomersDisaggregatedPerformanceMeasurement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_ImpactOfForeignCurrencyFluctuationsOnNetSales" abstract="false" name="ImpactOfForeignCurrencyFluctuationsOnNetSales" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="bsx_CostOfGoodsAndServicesSoldAdjustedPercentageOfNetSales" abstract="false" name="CostOfGoodsAndServicesSoldAdjustedPercentageOfNetSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bsx_SellingGeneralAndAdministrativeExpenseAdjusted" abstract="false" name="SellingGeneralAndAdministrativeExpenseAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_SellingGeneralAndAdministrativeExpenseAdjustedPercentageOfNetSales" abstract="false" name="SellingGeneralAndAdministrativeExpenseAdjustedPercentageOfNetSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bsx_ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCostAdjusted" abstract="false" name="ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCostAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCostAdjustedPercentageOfNetSales" abstract="false" name="ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCostAdjustedPercentageOfNetSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="bsx_OperatingIncomeLossAdjustedPercentageOfNetSales" abstract="false" name="OperatingIncomeLossAdjustedPercentageOfNetSales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="bsx_GlobalEndoscopyEndoReportingUnitMember" abstract="true" name="GlobalEndoscopyEndoReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_GlobalUrologyandPelvicHealthReportingUnitMember" abstract="true" name="GlobalUrologyandPelvicHealthReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_GlobalNeuromodulationNmReportingUnitMember" abstract="true" name="GlobalNeuromodulationNmReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_InterventionalCardiologyTherapiesMember" abstract="true" name="InterventionalCardiologyTherapiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="bsx_ElectrophysiologyEPMember" abstract="true" name="ElectrophysiologyEPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_CardiacRhythmManagementMember" abstract="true" name="CardiacRhythmManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_InterventionalOncologyAndEmbolizationMember" abstract="true" name="InterventionalOncologyAndEmbolizationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_LatinAmericaandCanadaMember" abstract="true" name="LatinAmericaandCanadaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_BSXReportableSegmentsMember" abstract="true" name="BSXReportableSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RestructuringAndRelatedCostExpectedCostCash" abstract="false" name="RestructuringAndRelatedCostExpectedCostCash" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_RestructuringAndRelatedCostExpectedExpenseReduction" abstract="false" name="RestructuringAndRelatedCostExpectedExpenseReduction" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_TransferCostsMember" abstract="true" name="TransferCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
