Designation:F1638−95(Reapproved2016)´1StandardTerminologyforSurgicalTissue/Dressing/Pick-UpForceps(Thumb-Type)1ThisstandardisissuedunderthefixeddesignationF1638;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—ReferencedDocumentssectionwaseditoriallyremovedinDecember2016.1.Scope1.1Thisterminologydefinesbasictermsandconsiderationsforcomponentsofthumb-typesurgicalforceps.Instrumentswiththisterminologyarelimitedtothosefabricatedfromstainlesssteelandusedforsurgicalprocedures.2.Terminology2.1Definitions:atraumatic—teeththatwouldinterdigitateexceptforbeingspacedapartapredesigneddistancesotheywillnotstress,crush,orotherwisetraumatizethetissuebeinggrasped.guidepin—apinaffixedtotheinsideofoneoftheforcepshalvesthatalignswithaholeontheothertweezerhalfwithoutprotrudingthroughwhenclosed.guidepinhole—theholeinoneforcepshalfintowhichtheguidepinfitswithoutpassingthroughwhenclosed.mesh—analignmentofopposingteeth.Theteethmaybein-lineorangled.mouseteeth—distaltipteeththatinterdigitate.scissoring—lateralmisalignment.set—theat-restpositionoftheinstrumenthalvesthatwillprovidetheintendedclosingrelationshipoffitandforce.stoppin—apinofpresetlengthaffixedtotheinsideofoneofthetweezerhalvesanddesignedtolimitteethcontactuponclosureandpreventtheirdamage.teeth—serrationsformedontheinsidefacesofthedistalendofthetweezerhalves.tissueforceps—adeviceformedintwogenerallysymmetricalhalveswiththeirproximalendssecuredtogetherandsetsothattheirdistalendswillstayseparatedunlesspressedtogether.1ThisterminologyisunderthejurisdictionofASTMCommitteeF04onMedicalandSurgicalMaterialsandDevicesandisthedirectresponsibilityofSubcommitteeF04.33onMedical/SurgicalInstruments.CurrenteditionapprovedOct.1,2016.PublishedOctober2016.Originallyapprovedin1995.Lastpreviouseditionapprovedin2008asF1638...
