Designation:F965–99StandardSpecificationforRigidLaryngoscopesforTrachealIntubation—Hook-OnFittingsforLaryngoscopeHandlesandBladeswithLamps1ThisstandardisissuedunderthefixeddesignationF965;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thisspecificationcoverscriticaldimensionsandcon-siderationsforthejunctionofanybladeandanyhandleofahook-ontypelaryngoscopetoallowengagement,lampillumi-nation,anddisengagementthroughmultiplecycles.Anelec-tricallampisfixedtothebladeandsuppliedwithenergythroughthehandle.1.2Thisstandarddoesnotcover:(1)thebladeformorhandledesignbeyondtheinterchangeabilityaspectsoftheconnectionbetweenthebladeandthehandle;(2)themeasure-mentandspecificiationofthelampilluminationintensity;and(3)disposable,flexible,orfiber-illuminatedlaryngoscopesdesignedforsurgery.1.3Thestate-of-the-artoflaryngoscopeperformancedoesnotpermitsufficientreproducibilitytoallowinclusionofmandatoryforcevaluesinthisstandard;therefore,onlyrec-ommendedvalueshavebeenprovided.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.2.ReferencedDocuments2.1ANSIStandard:ANSIY14.5DimensionsandTolerances23.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1blade—aseparaterigiddevicetoprovidedirectvisionofthelarynx,incorporatingahook-onbaseandasocketconnectionforalaryngoscopelampandanelectricalconnec-tiontothehook-onend.3.1.2contacts—conductivecomponentsofthehook-onfit-tings,bothhandleandblade,whichcometogethertomakeanelectricalcircuitwhenthehandleandbladeareinthelocked,operatingposition.3.1.3engagement—thebladeandhandleareengagedwhenthehingepinispositionedagainsttheclosedendofthehingeslot,andremainscoupledinallpositions.3.1.4foldedposition—thepositionoftheengagedbladewhenthetipofthebladeisasclose...