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  <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_QualifiedAcquisitionConsideration" abstract="false" name="QualifiedAcquisitionConsideration" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" 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"/>
  <xs:element id="bsx_OtherCurrentAssetsAbstract" abstract="true" name="OtherCurrentAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="bsx_Licensingarrangements" abstract="false" name="Licensingarrangements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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_IndemnificationAsset" abstract="false" name="IndemnificationAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_OtherOtherLongtermAssets" abstract="false" name="OtherOtherLongtermAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_AccruedRebatesCurrent" abstract="false" name="AccruedRebatesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_EffectiveIncomeTaxRateReconciliationReportedTaxRatePercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationReportedTaxRatePercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="bsx_PreJudgementInterest" abstract="false" name="PreJudgementInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_A550MCPSSeriesAMember" abstract="true" name="A550MCPSSeriesAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_BSXReportableSegmentsMember" abstract="true" name="BSXReportableSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_TotalAllocatedToReportableSegmentsMember" abstract="true" name="TotalAllocatedToReportableSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_CorporateExpensesincludinghedgingactivitiesMember" abstract="true" name="CorporateExpensesincludinghedgingactivitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_SpecialChargesMember" abstract="true" name="SpecialChargesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_OperatingIncomeAllocatedToReportableSegments" abstract="false" name="OperatingIncomeAllocatedToReportableSegments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="bsx_OperatingIncomeUnallocatedToSegment" abstract="false" name="OperatingIncomeUnallocatedToSegment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <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"/>
  <xs:element id="bsx_Segmentoperatingincomeaspercentageofnetsales" abstract="false" name="Segmentoperatingincomeaspercentageofnetsales" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="bsx_GlobalEndoscopyEndoReportingUnitMember" abstract="true" name="GlobalEndoscopyEndoReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_GlobalUrologyandPelvicHealthReportingUnitMember" abstract="true" name="GlobalUrologyandPelvicHealthReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_GlobalNeuromodulationNmReportingUnitMember" abstract="true" name="GlobalNeuromodulationNmReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_InterventionalCardiologyTherapiesMember" abstract="true" name="InterventionalCardiologyTherapiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_WatchmanMember" abstract="true" name="WatchmanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_CardiacRhythmManagementMember" abstract="true" name="CardiacRhythmManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_ElectrophysiologyEPMember" abstract="true" name="ElectrophysiologyEPMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_GlobalCardiologyReportingUnitMember" abstract="true" name="GlobalCardiologyReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_GlobalPeripheralInterventionsPiReportingUnitMember" abstract="true" name="GlobalPeripheralInterventionsPiReportingUnitMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_LatinAmericaandCanadaMember" abstract="true" name="LatinAmericaandCanadaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_EmergingMarketsMember" abstract="true" name="EmergingMarketsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="bsx_JohnB.BradSorensonMember" abstract="true" name="JohnB.BradSorensonMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RuleTradingArrangementCommonStockMember" abstract="true" name="RuleTradingArrangementCommonStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RuleTradingArrangementPerformanceAndRestrictedShareUnitsMember" abstract="true" name="RuleTradingArrangementPerformanceAndRestrictedShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_RuleTradingArrangementStockStockOptionsMember" abstract="true" name="RuleTradingArrangementStockStockOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_ArthurC.ButcherMember" abstract="true" name="ArthurC.ButcherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="bsx_DanielJ.BrennanMember" abstract="true" name="DanielJ.BrennanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
