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  <xs:element id="aort_NorthAmericaSegmentMember" abstract="true" name="NorthAmericaSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aort_EuropeTheMiddleEastAndAfricaSegmentsMember" abstract="true" name="EuropeTheMiddleEastAndAfricaSegmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aort_AsiaPacificSegmentMember" abstract="true" name="AsiaPacificSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aort_LatinAmericaSegmentMember" abstract="true" name="LatinAmericaSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aort_RestrictedStockAwardsRestrictedStockUnitsAndPerformanceStockUnitsMember" abstract="false" name="RestrictedStockAwardsRestrictedStockUnitsAndPerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsGrantDateFairValue" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aort_StockOptionAndEmployeeStockPurchasePlanOptionExpenseMember" abstract="false" name="StockOptionAndEmployeeStockPurchasePlanOptionExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_MedicalDevicesMember" abstract="false" name="MedicalDevicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_AorticStentGraftsMember" abstract="false" name="AorticStentGraftsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_OnXMember" abstract="false" name="OnXMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_SurgicalSealantsMember" abstract="false" name="SurgicalSealantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_OtherProductsMember" abstract="false" name="OtherProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aort_AndrewM.GreenMember" abstract="true" name="AndrewM.GreenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="aort_JohnE.DavisMember" abstract="true" name="JohnE.DavisMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
