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  <xs:element id="icui_StandardOCOSMember" abstract="true" name="StandardOCOSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_OtherOCOCMember" abstract="true" name="OtherOCOCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_TariffExpense" abstract="false" name="TariffExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_Restructuringandstrategictransactionexpense" abstract="false" name="Restructuringandstrategictransactionexpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_OtherLATAMMember" abstract="true" name="OtherLATAMMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_ForeignMember" abstract="true" name="ForeignMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_Optiontoextendinyears" abstract="false" name="Optiontoextendinyears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="icui_TotalAntiDilutiveStockOptionsAndRestrictedStockAwards" abstract="false" name="TotalAntiDilutiveStockOptionsAndRestrictedStockAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="icui_TermLoanAxis" abstract="true" name="TermLoanAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="icui_TermLoanDomain" abstract="true" name="TermLoanDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_TermLoanAMember" abstract="true" name="TermLoanAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_TermLoanBMember" abstract="true" name="TermLoanBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_Swap3TermLoanABMember" abstract="true" name="Swap3TermLoanABMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_Swap3Member" abstract="true" name="Swap3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_Swap4TermLoanAMember" abstract="true" name="Swap4TermLoanAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_InterestRateSwapEndingNotionalValue" abstract="false" name="InterestRateSwapEndingNotionalValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_DerivativeVariableRateFloor" abstract="false" name="DerivativeVariableRateFloor" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_UsGaap_OtsukaICUMedicalLLCMember" abstract="true" name="UsGaap_OtsukaICUMedicalLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_UsGaap_OtherInvestmentsMemberMember" abstract="true" name="UsGaap_OtherInvestmentsMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_JVandVIMember" abstract="true" name="JVandVIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_UsGaap_EquityMethodInvestmentNonconsolidatedInvesteeNameAxisAxis" abstract="true" name="UsGaap_EquityMethodInvestmentNonconsolidatedInvesteeNameAxisAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="icui_UsGaap_EquityMethodInvestmentNonconsolidatedInvesteeNameAxisDomain" abstract="true" name="UsGaap_EquityMethodInvestmentNonconsolidatedInvesteeNameAxisDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LandBuildingAndBuildingImprovementsGross" abstract="false" name="LandBuildingAndBuildingImprovementsGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_MoldsGross" abstract="false" name="MoldsGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_ComputerEquipmentAndSoftwareGross" abstract="false" name="ComputerEquipmentAndSoftwareGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_InstrumentsPlacedWithCustomersGross" abstract="false" name="InstrumentsPlacedWithCustomersGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_IndefinteLivedIntangiblesPutInUse" abstract="false" name="IndefinteLivedIntangiblesPutInUse" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_AccruedSalariesAndBenefits" abstract="false" name="AccruedSalariesAndBenefits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_AccruedLiabilityItalyPaymentScheme" abstract="false" name="AccruedLiabilityItalyPaymentScheme" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_FieldServiceCorrectiveAction" abstract="false" name="FieldServiceCorrectiveAction" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_RevolverSubLimits" abstract="false" name="RevolverSubLimits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_InterestPercentageAddedToFederalFundsRate" abstract="false" name="InterestPercentageAddedToFederalFundsRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_InterestPercentageAddedToBaseRate" abstract="false" name="InterestPercentageAddedToBaseRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_TerSOFRInterestRateAdjustmentForBaseRateLoans" abstract="false" name="TerSOFRInterestRateAdjustmentForBaseRateLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_TermSOFRAdjustmentInterestRateAdjustmentTermSOFRLoans" abstract="false" name="TermSOFRAdjustmentInterestRateAdjustmentTermSOFRLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_ApplicableMarginBaseRateLoans" abstract="false" name="ApplicableMarginBaseRateLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_ApplicableMarginTermSOFRLoans" abstract="false" name="ApplicableMarginTermSOFRLoans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_ApplicableMarginBasedOnLeverageRatioTable" abstract="true" name="ApplicableMarginBasedOnLeverageRatioTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="icui_LeverageRatioLevelAxis" abstract="true" name="LeverageRatioLevelAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="icui_LeverageRatioLevelDomain" abstract="true" name="LeverageRatioLevelDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_Greaterthan400to100Member" abstract="true" name="Greaterthan400to100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThanOrEqualTo400To100ButGreaterThan300To100Member" abstract="true" name="LessThanOrEqualTo400To100ButGreaterThan300To100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThanOrEqual300To100ButGreaterThan250to100Member" abstract="true" name="LessThanOrEqual300To100ButGreaterThan250to100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThanOrEqualTo250To100ButGreaterThan200To100Member" abstract="true" name="LessThanOrEqualTo250To100ButGreaterThan200To100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThanOrEqualTo200To100Member" abstract="true" name="LessThanOrEqualTo200To100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_GreaterThan275To100Member" abstract="true" name="GreaterThan275To100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThan275To100Member" abstract="true" name="LessThan275To100Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_LessThanOrEqualTo2.00To1.00ButGreaterThan1.75To1.0Member" abstract="true" name="LessThanOrEqualTo2.00To1.00ButGreaterThan1.75To1.0Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_ApplicableMarginBasedOnLeverageRatioLineItems" abstract="true" name="ApplicableMarginBasedOnLeverageRatioLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="icui_TermAPrincipalPaymentFirst2Years" abstract="false" name="TermAPrincipalPaymentFirst2Years" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_TermAPrincipalPaymentYear3And4" abstract="false" name="TermAPrincipalPaymentYear3And4" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_TermAPrincipalPaymentInYear5" abstract="false" name="TermAPrincipalPaymentInYear5" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_TermLoanBPrincipalPayment" abstract="false" name="TermLoanBPrincipalPayment" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="icui_DebtInstrumentAdditionalPrepaymentPrincipal" abstract="false" name="DebtInstrumentAdditionalPrepaymentPrincipal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_DebtIssuanceCostsTable" abstract="true" name="DebtIssuanceCostsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="icui_TermLoansAndRevolvingCreditFacilityMember" abstract="true" name="TermLoansAndRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="icui_DebtIssuanceCostsLineItems" abstract="true" name="DebtIssuanceCostsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="icui_TotalNewlyCapitalizedDebtIssuanceCosts" abstract="false" name="TotalNewlyCapitalizedDebtIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_TreasuryStockPurchasePlan" abstract="false" name="TreasuryStockPurchasePlan" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="icui_SmithsMedicalMember" abstract="true" name="SmithsMedicalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
