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  <xsd:element name="CustomerNumber2Member" id="osis_CustomerNumber2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CalendarQuarterCommencingAfterQuarterEndedOnSeptember302024Member" id="osis_CalendarQuarterCommencingAfterQuarterEndedOnSeptember302024Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentWorkingCapital" id="osis_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentWorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredIncomeTaxLiability" id="osis_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredIncomeTaxLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeepakChopraMember" id="osis_DeepakChopraMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter" id="osis_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFourAndThereafter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BusinessCombinationAcquisitionRelatedCostsRecoveriesNet" id="osis_BusinessCombinationAcquisitionRelatedCostsRecoveriesNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="LitigationSettlementFeeExpenseRecoveries" id="osis_LitigationSettlementFeeExpenseRecoveries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncomeTaxEffectsAllocatedDirectlyToEquityPriorPeriodAdjustmentAndUncertainTaxPositions" id="osis_IncomeTaxEffectsAllocatedDirectlyToEquityPriorPeriodAdjustmentAndUncertainTaxPositions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
</xsd:schema>
