ASTM F1638-95(2016)e1

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: F1638 − 95 (Reapproved 2016) F1638 − 95 (Reapproved 2016)
Standard Terminology for
Surgical Tissue/Dressing/Pick-Up Forceps (Thumb-Type)
This standard is issued under the fixed designation F1638; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Referenced Documents section was editorially removed in December 2016.
1. Scope
1.1 This terminology defines basic terms and considerations for components of thumb-type surgical forceps. Instruments with
this terminology are limited to those fabricated from stainless steel and used for surgical procedures.
2. Referenced Documents
2.1 ASTM Standards:
F899 Specification for Wrought Stainless Steels for Surgical Instruments
F921 Terminology Relating to Hemostatic Forceps
2. Terminology
2.1 Definitions:
atraumatic—teeth that would interdigitate except for being spaced apart a predesigned distance so they will not stress, crush, or
otherwise traumatize the tissue being grasped.
guide pin—a pin affixed to the inside of one of the forceps halves that aligns with a hole on the other tweezer half without
protruding through when closed.
guide pin hole—the hole in one forceps half into which the guide pin fits without passing through when closed.
mesh—an alignment of opposing teeth. The teeth may be in-line or angled.
mouse teeth—distal tip teeth that interdigitate.
scissoring—lateral misalignment.
set—the at-rest position of the instrument halves that will provide the intended closing relationship of fit and force.
stop pin—a pin of preset length affixed to the inside of one of the tweezer halves and designed to limit teeth contact upon closure
and prevent their damage.
teeth—serrations formed on the inside faces of the distal end of the tweezer halves.
tissue forceps—a device formed in two generally symmetrical halves with their proximal ends secured together and set so that
their distal ends will stay separated unless pressed together.
This terminology is under th
...