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  <xsd:element name="TRowePriceRetirement2030FundCMember" id="mmsi_TRowePriceRetirement2030FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2035FundCMember" id="mmsi_TRowePriceRetirement2035FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2040FundCMember" id="mmsi_TRowePriceRetirement2040FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2045FundCMember" id="mmsi_TRowePriceRetirement2045FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2050FundCMember" id="mmsi_TRowePriceRetirement2050FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2055FundCMember" id="mmsi_TRowePriceRetirement2055FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2060FundCMember" id="mmsi_TRowePriceRetirement2060FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TRowePriceRetirement2065FundCMember" id="mmsi_TRowePriceRetirement2065FundCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SelfDirectedBrokerageAccountMember" id="mmsi_SelfDirectedBrokerageAccountMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MeritMedicalSystemsInc.CommonStockMember" id="mmsi_MeritMedicalSystemsInc.CommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EmployeeBenefitPlanNoteReceivableFromParticipantDeemedDistribution" id="mmsi_EmployeeBenefitPlanNoteReceivableFromParticipantDeemedDistribution" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="MassachussetsFinancialServicesMidCapValueFundClassR4Member" id="mmsi_MassachussetsFinancialServicesMidCapValueFundClassR4Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
