1、Designation: F 1078 87 (Reapproved 2002)Standard Terminology forSurgical ScissorsInserted and Non-Inserted Blades1This standard is issued under the fixed designation F 1078; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This terminology defines basic te
3、rms and considerationsfor the components of scissors with either inserted or non-inserted blades (see Fig. 1). Instruments in this terminology arelimited to those fabricated having scissor blades made fromstainless steel and used for surgical procedures.2. Referenced Documents2.1 ASTM Standards:F 89
4、9 Specification for Stainless Steels for Surgical Instru-ments2F 1079 Specification for Inserted and Noninserted SurgicalScissors22.2 ISO Standard:ISO 7741 Instruments for SurgeryScissors and ShearsGeneral Requirements, Testing33. TerminologyDEFINITIONS OF THE INSTRUMENTSbladethe segment that contai
5、ns the cutting edge which maybe with or without serrations.bottom scissor halfthe component which contains thethreaded end of the screw.distal endthe working end, comprised of two blades, that isfurthest from the surgeon when in use.finger ringsthe feature of the scissors that forms the grip-ping su
6、rface for the surgeon (commonly classified as thering-handled feature).jointthe junction where the scissor blades are secured by ascrew allowing the instrument to pivot.proximal endthat portion of the instrument that is closest tothe surgeon when in use.ridethe edge which acts as a cam.ride reliefth
7、e contoured area between the shank and riderounded bladea blade having a radius on its outer surfacewhich forms a transition between the outer edge and thecutting edges.screwthe fastener which joins the scissor halvesserrationscorrugations in the cutting edge of the blades.shank(1) the part of eithe
8、r scissor half that yields configu-ration, length, and leverage; (2) the part of the scissorbetween the finger ring and joint.surgical scissors with insertsa stainless steel instrument,available in various sizes and configurations, used in surgicalprocedures for cutting body tissue, gauze, and sutur
9、e. Aninstrument of this type has tungsten carbide, stellite, or otherinserts.top scissor halfthe component which contains the screwhead at assembly.1This terminology is under the jurisdiction of ASTM Committee F04 on Medicaland Surgical Materials and Devices and is the direct responsibility of Subco
10、mmitteeF04.33 on Medical/Surgical Instruments.Current edition approved Sept. 25, 1987. Published November 1987.2Annual Book of ASTM Standards, Vol 13.01.3Available from American National Standards Institute, 25 W. 43rd St., 4thFloor, New York, NY 10036.FIG. 1 Components of a Scissors (Inserted and N
11、on-Inserted)1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.DEFINITIONS OF PHYSICAL PROPERTIESOF THE INSTRUMENTblade alignmentthe positioning of the blades with respect totip match-up and blade setting.chamferthe broken external edge
12、s of the instrument.corrosionthe formation of rust.finishthe final surface visual appearance of the instrumentclassified as follows:(1) bright or mirror finishhighly reflective surfaces.(2) satin, matte, or black finishreduced reflected sur-faces (as compared to bright or mirror finish).hardnessa me
13、asurement of the resistance to indentation.passivationa process to render the surface condition ofstainless steel chemically inactive.setthe positioning of the blade for proper cutting action.stainless steelthe raw material of the instrument that is inaccordance with Specification F 899.APPENDIX(Non
14、mandatory Information)X1. RATIONALEX1.1 Because there is a clinical need for a variety ofinstruments for surgical procedures, they are manufactured invarious configurations and from various types of stainless steel.For practical purposes and patient safety, these devices sup-plied by different manuf
15、acturers necessitate a defined system ofterms.X1.2 The terms defined in this standard are the mostcommonly used for scissors. However, the intent is not toprohibit technological innovation or to exclude instrumentsmanufactured with other types of features.This standard is subject to revision at any
16、time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments wil
17、l receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by AST
18、M International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F 1078 87 (2002)2
