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    <link:loc xlink:href="ango-20160831.xsd#ango_ResearchAndDevelopmentMember" xlink:label="loc_ango_ResearchAndDevelopmentMember_1A14F1B50526FB61955671968BC28D44" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SellingAndMarketingExpenseMember_EE40FC52567DC1D0D6547171E7614934_terseLabel_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpenseMember_EE40FC52567DC1D0D6547171E7614934" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Selling and Marketing Expense [Member]</link:label>
    <link:label id="lab_us-gaap_SellingAndMarketingExpenseMember_EE40FC52567DC1D0D6547171E7614934_label_en-US" xlink:label="lab_us-gaap_SellingAndMarketingExpenseMember_EE40FC52567DC1D0D6547171E7614934" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling and Marketing Expense [Member]</link:label>
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    <link:label id="lab_us-gaap_RestructuringCostAndReserveLineItems_DCF46F0916164996E54D7171E7625CAD_label_en-US" xlink:label="lab_us-gaap_RestructuringCostAndReserveLineItems_DCF46F0916164996E54D7171E7625CAD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring Cost and Reserve [Line Items]</link:label>
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    <link:label id="lab_us-gaap_SeveranceCosts1_DF528681AD8A19ACE65F7171E7620ECE_terseLabel_en-US" xlink:label="lab_us-gaap_SeveranceCosts1_DF528681AD8A19ACE65F7171E7620ECE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Severance expense</link:label>
    <link:label id="lab_us-gaap_SeveranceCosts1_DF528681AD8A19ACE65F7171E7620ECE_label_en-US" xlink:label="lab_us-gaap_SeveranceCosts1_DF528681AD8A19ACE65F7171E7620ECE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Severance Costs</link:label>
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    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_B6B68F2A384C589BCEA17171E90E20DB_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_B6B68F2A384C589BCEA17171E90E20DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_B6B68F2A384C589BCEA17171E90E20DB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_B6B68F2A384C589BCEA17171E90E20DB" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract_B6B68F2A384C589BCEA17171E90E20DB" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_E6B90F1A3D77DE3A8F1A7171E90EB23E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_38FC4C405CD2F4A876287171E90FFAD6_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_38FC4C405CD2F4A876287171E90FFAD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income (loss) to net cash provided by operating activities:</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_38FC4C405CD2F4A876287171E90FFAD6" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DepreciationAndAmortization_D01FFE3C0C298DD2ED9C7171E90F6409_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAndAmortization_D01FFE3C0C298DD2ED9C7171E90F6409" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_DepreciationAndAmortization_D01FFE3C0C298DD2ED9C7171E90F6409_label_en-US" xlink:label="lab_us-gaap_DepreciationAndAmortization_D01FFE3C0C298DD2ED9C7171E90F6409" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, Depletion and Amortization, Nonproduction</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_us-gaap_DepreciationAndAmortization_D01FFE3C0C298DD2ED9C7171E90F6409" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShareBasedCompensation_4BB2AFB76274DDB9D1DC7171E90FB749_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_4BB2AFB76274DDB9D1DC7171E90FB749" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock based compensation</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_4BB2AFB76274DDB9D1DC7171E90FB749_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_4BB2AFB76274DDB9D1DC7171E90FB749" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
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    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_7407253740409C7BB12F7171E90F7605_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_7407253740409C7BB12F7171E90F7605" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_7407253740409C7BB12F7171E90F7605_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_7407253740409C7BB12F7171E90F7605" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_7407253740409C7BB12F7171E90F7605" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_6CC775722803933288447171E90FB338_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_6CC775722803933288447171E90FB338" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed and intangible asset impairments and disposals</link:label>
    <link:label id="lab_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_6CC775722803933288447171E90FB338_label_en-US" xlink:label="lab_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_6CC775722803933288447171E90FB338" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment of Long-Lived Assets to be Disposed of</link:label>
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_393D30D4985795D609B97171E910F8DB_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_393D30D4985795D609B97171E910F8DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Change in accounts receivable allowances</link:label>
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    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_5CA2BBAA3907A489E4CC7171E910326E_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense_5CA2BBAA3907A489E4CC7171E910326E" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
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    <link:label id="lab_us-gaap_VariableRateAxis_1900FB9809190FCD04BC7171E861BE55_label_en-US" xlink:label="lab_us-gaap_VariableRateAxis_1900FB9809190FCD04BC7171E861BE55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Rate [Axis]</link:label>
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    <link:label id="lab_us-gaap_VariableRateDomain_D6BEE0740C047CF381F97171E861DBB7_label_en-US" xlink:label="lab_us-gaap_VariableRateDomain_D6BEE0740C047CF381F97171E861DBB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Rate [Domain]</link:label>
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    <link:label id="lab_us-gaap_BaseRateMember_558F983CC0EC4BEA97B87171E862A412_label_en-US" xlink:label="lab_us-gaap_BaseRateMember_558F983CC0EC4BEA97B87171E862A412" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Base Rate [Member]</link:label>
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    <link:label id="lab_us-gaap_EurodollarMember_15E15EF4231FF158563E7171E862E113_label_en-US" xlink:label="lab_us-gaap_EurodollarMember_15E15EF4231FF158563E7171E862E113" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Eurodollar [Member]</link:label>
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    <link:label id="lab_ango_JpMorganChaseMember_66528FE4376CDEA85F5E7171E863AEE9_terseLabel_en-US" xlink:label="lab_ango_JpMorganChaseMember_66528FE4376CDEA85F5E7171E863AEE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">JP Morgan Chase [Member]</link:label>
    <link:label id="lab_ango_JpMorganChaseMember_66528FE4376CDEA85F5E7171E863AEE9_label_en-US" xlink:label="lab_ango_JpMorganChaseMember_66528FE4376CDEA85F5E7171E863AEE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Jp Morgan Chase [Member]</link:label>
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    <link:label id="lab_ango_SecuredLongTermDebtInitialBorrowingCapacity_A665FB7EA0B83AFD3E4D7171E863D51E_terseLabel_en-US" xlink:label="lab_ango_SecuredLongTermDebtInitialBorrowingCapacity_A665FB7EA0B83AFD3E4D7171E863D51E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Senior secured term loan facility</link:label>
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