ASTM F921-1985(2008)e1 Standard Terminology Relating to Hemostatic Forceps.pdf

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1、Designation: F 921 85 (Reapproved 2008)e1Standard Terminology Relating toHemostatic Forceps1This standard is issued under the fixed designation F 921; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num

2、ber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.e1NOTEEditorial changes were made throughout in June 2008.1. Scope1.1

3、 This terminology covers basic terms and considerationsfor the components of hemostatic forceps. Instruments in thisterminology are limited to those fabricated from stainless steeland for general surgical procedures. See Fig. 1 and Fig. 2.2. Referenced Documents2.1 ASTM Standards:2F 899 Specificatio

4、n for Wrought Stainless Steels for Surgi-cal Instruments2.2 ISO Standard:ISO 7151 Instruments for SurgeryHemostatic ForcepsGeneral Requirements33. TerminologyDefinitions of Hemostatic Forcepsbox lockthe junction where the female member and the malemember are secured, forming the pivoting feature.dis

5、tal endthe working end, comprised of two jaws, that isfurthest from the surgeon when in use.female memberthe component that accommodates andencloses the male member at the box lock junction.finger ringsthe feature of both the female and the malemembers that forms the gripping surface for the surgeon

6、(commonly classified as the ring-handled feature in ISO7151).hemostatic forcepsan instrument, available in various sizesand configurations, used in surgical procedures for thecompression of blood vessels and the grasping of tissue.jawsparts that contain serrations to interrupt the flow ofblood throu

7、gh any vessel.male memberthe component that is inserted through thefemale member and secured to the female member at the boxlock junction.proximal endthat portion of the instrument that is closest tothe surgeon when in use.ratchetsthe portion of both the female and male members atthe proximal end po

8、ssessing inclined teeth and that form thelocking mechanism.serrations or teeththe gripping or clamping surfaces of thejaws or ratchets.shankthe part of either the female or the male member thatyields configuration, length, and leverage.Definitions of Physical Properties of Hemostatic Forcepschamfert

9、he broken edge of the jaw serrations and theexternal edges of the box lock surfaces.corrosionthe formation of rust.elasticitythe capacity of the instrument to undergo inducedstress without permanent distortion or breakage of anycomponent.finishthe final surface visual appearance of the instrumentcla

10、ssified as follows:(1) bright or mirror finishhighly reflective surfaces.(2) satin, matte, or black finishreduced reflected surfaces(as compared to bright or mirror finish).hardnessa measurement of the resistance to indentation.interdigitationthe interlocking or meshing of the female andmale jaw ser

11、rations.jaw alignmentthe positioning of the female and male jawswith respect to interdigitation (related to box lock functionand ratchet performance).passivationthe changing of the chemically active surface ofstainless steel to a much less reactive state.stainless steelthe raw material on the instru

12、ment that is inaccordance with Specification F 899.1This terminology is under the jurisdiction ofASTM Committee F04 on Medicaland Surgical Materials and Devices and is the direct responsibility of SubcommitteeF04.33 on Medical/Surgical Instruments.Current edition approved Feb. 1, 2008. Published Mar

13、ch 2008. Originallyapproved in 1985. Last previous edition approved in 2002 as F 921 85 (2002).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Documen

14、t Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.FIG. 1 Components of a H

15、emostatic ForcepsF 921 85 (2008)e12FIG. 2 Typical Types of Serrations and Teeth for Hemostatic ForcepsF 921 85 (2008)e13APPENDIX(Nonmandatory Information)X1. RATIONALEX1.1 Because there is a clinical need for a variety ofinstruments for general and surgical procedures, they aremanufactured in variou

16、s configurations and from various typesof stainless steel. For practical purposes and patient safety,these devices supplied by different manufacturers necessitate adefined system of categorization, materials, and performancerequirements.X1.2 This is the first standard of a multiple part standard tha

17、tdefines the components of a hemostatic forceps designed forrepeated use, including various terminology that describesperformance considerations.X1.3 Box LockThe box lock construction defined in thisterminology is the most commonly produced junction forhemostatic forceps. However, the intent is not

18、to prohibittechnological innovation or to exclude instruments manufac-tured with other types of pivoting features such as lap joints.X1.4 Disposable instruments are not included in this termi-nology, nor are the instruments designed for specific surgery.However, a part or all of the terminology defi

19、ned herein may beapplicable to specific and disposable surgical instruments.This standard is subject to revision at any 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 o

20、f this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will 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 should

21、make your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM 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 921 85 (2008)e14