ASTM F921-10(2011)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F921 − 10 (Reapproved 2011)
Standard Terminology Relating to
Hemostatic Forceps
ThisstandardisissuedunderthefixeddesignationF921;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope jaws—parts that contain serrations to interrupt the flow of
blood through any vessel.
1.1 This terminology covers basic terms and considerations
for the components of hemostatic forceps. Instruments in this
male member—the component that is inserted through the
terminology are limited to those fabricated from stainless steel
femalememberandsecuredtothefemalememberatthebox
and for general surgical procedures. See Fig. 1 and Fig. 2.
lock junction.
proximal end—that portion of the instrument that is closest to
2. Referenced Documents
the surgeon when in use.
2.1 ASTM Standards:
F899 Specification for Wrought Stainless Steels for Surgical
ratchets—the portion of both the female and male members at
Instruments the proximal end possessing inclined teeth and that form the
locking mechanism.
2.2 ISO Standard:
ISO 7151 Instruments for Surgery—Hemostatic Forceps—
serrations or teeth—the gripping or clamping surfaces of the
General Requirements
jaws or ratchets.
3. Terminology
shank—the part of either the female or the male member that
yields configuration, length, and leverage.
Definitions of Hemostatic Forceps
Definitions of Physical Properties of Hemostatic Forceps
box lock—thejunctionwherethefemalememberandthemale
member are secured, forming the pivoting feature.
chamfer—the broken edge of the jaw serrations and the
external edges of the box lock surfaces.
distal end—the working end, comprised of two jaws, that is
furthest from the surgeon when in use.
corrosion—the formation of rust.
female member—the component that accommodates and
elasticity—the capacity of the instrument to undergo induced
encloses the male member at the box lock junction.
stress without permanent distortion or breakage of any
component.
finger rings—the feature of both the female and the male
members that forms the gripping surface for the surgeon
finish, n—final surface visual appearance classified as follows:
(commonly classified as the ring-handled feature in ISO
bright or mirror finish, n—highly reflective surface.
7151).
satin, matte, or black finish, n—reduced reflective surface
(as compared to bright or mirror finish) varying from a dull
hemostatic forceps—an instrument, available in various sizes
appearance to a blackened surface.
and configurations, used in surgical procedures for the
compression of blood vessels and the grasping of tissue.
hardness—a measurement of the resistance to indentation.
interdigitation—theinterlockingormeshingofthefemaleand
ThisterminologyisunderthejurisdictionofASTMCommitteeF04onMedical male jaw serrations.
and Surgical Materials and Devices and is the direct responsibility of Subcommittee
F04.33 on Medical/Surgical Instruments. jaw alignment—the positioning of the female and male jaws
CurrenteditionapprovedJune1,2011.PublishedJuly2011.Originallyapproved
with respect to interdigitation (related to box lock func
...