ISO/FDIS 7554-1

ISO/TC 170
Secretariat: DIN
Date: 2025-10-082026-05-26
Surgical instruments — Terms, measuring methods and test methods
— —
Part 1:
Vocabulary
Instruments chirurgicaux — Termes, méthodes de mesurage et méthodes d'essai —
Partie 1: Vocabulaire
FDIS stage
ISO/DIS FDIS 7554-1:2024(E2026(en)
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ii
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to general components of surgical instruments. 1
3.2 Terms related to tweezers and their components . 6
3.3 Terms related to scissors and shears . 20
3.4 Terms related to ring forceps . 36
3.5 Terms related to forceps . 50
3.6 Terms related to needle holders . 69
3.7 Terms related to retractors and their components . 74
3.8 Terms related to elevators and their components . 76
3.9 Terms related to osteotomes and chisels and their components . 77
3.10 Terms related to spoons and their components . 79
3.11 Terms related to nose forceps or conchotomes and their components. 81

iii
ISO/DIS FDIS 7554-1:2024(E2026(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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The procedures used to develop this document and those intended for its further maintenance are described
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This document was prepared by Technical Committee ISO/TC 170, Surgical instruments.
A list of all parts in the ISO 7554 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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iv
DRAFT International Standard ISO/DIS 7554-1:2025(en)

Surgical instruments — Terms, measuring methods and test methods
— —
Part 1:
Vocabulary
1 Scope
This document defines terms for surgical instruments and their components.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/
3.1 Terms related to general components of surgical instruments
3.1.1
3.1.1
stop pin
mounting part for the restriction of the radius or range of action of the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for clamps, tweezers, forceps.
3.1.2 3.1.2
working end
functional jaw part on the distal end (3.1.3) of an instrument
Note 1 to entry: This term is common for clamps, needle holders and forceps.
3.1.3 3.1.3
distal end
end of the instrument facing towards the patient
3.1.4 3.1.4
cutting edge
part of the working end (3.1.2(3.1.2)) that severs tissue, organs, ribs, bones and medical supplies
Note 1 to entry: This term is common for scalpels, knives, scissors and shears.
3.1.5 3.1.5
biseau
support surface for the tissue to be severed
3.1.6 3.1.6
blade
anterior functional part for severing or holding
Note 1 to entry: This term is common for retractors and scissors and shears.
3.1.7 3.1.7
leaf spring
element of instruments with branches (3.1.9(3.1.9)) to open or close the working end (3.1.2(3.1.2)) using
spring force
Note 1 to entry: This term is common for clamps, forceps, needle holders and scissors and shears.
3.1.8 3.1.8
blade back
part of the blade (3.1.6(3.1.6)) that is opposite to the cutting edge (3.1.4(3.1.3))
Note 1 to entry: This term is common for scissors and shears.
3.1.9 3.1.9
branch
shank
part of the instrument from the end of the joint (3.1.36) to the proximal end (3.1.12(3.1.12)) or ring
(3.1.32(3.1.32))
Note 1 to entry: This term is common for clamps, forceps, needle holders, scissors and shears.
3.1.10 3.1.10
latch
fixture to hold the instrument in a locked state
Note 1 to entry: This term is common for retractors and forceps.
3.1.11 3.1.11
double leaf spring
multi-part element of instruments with branches (3.1.9(3.1.9)) to open or close the working end (3.1.2(3.1.2))
using spring force
Note 1 to entry: This term is common for needle holders, clamps, forceps, scissors and shears.
3.1.12 3.1.12
proximal end
part of the instrument facing the user
Note 1 to entry: This term usually designates the handle of the instrument and is common for clamps, needle holders,
tweezers and forceps.
3.1.13 3.1.13
wire cutter notch
groove in a cutting edge (3.1.4(3.1.4)) to cut wire
Note 1 to entry: This term is common for clamps, forceps, scissors and shears.
ISO/DISFDIS 7554-1:20252026(en)
3.1.14 3.1.14
spring
elastic part of the tweezer between mirror and connection part
Note 1 to entry: This term is common for tweezers.
3.1.15 3.1.15
fenestration
recess or opening in the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for clamps, forceps, needle holders and tweezers.
3.1.16 3.1.16
sliding block
protection and guide sleeve
Note 1 to entry: This term is common for clamps, forceps.
3.1.17 3.1.17
grip surface
part of the branch (3.1.9(3.1.9)) used to hold and operate the instrument
Note 1 to entry: This term is common for clamps, needle holders, tweezers, forceps, scissors and shears.
3.1.18 3.1.18
hook
prong
bent or angled tip at the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for clamps, forceps, retractors, scissors and shears.
3.1.19 3.1.19
horn
protrusion on the branches (3.1.9(3.1.9)) to prevent slippage of the hand
Note 1 to entry: This term is common for scissors, shears, clamps and forceps.
3.1.20 3.1.20
groove
longitudinal or circular-concave recess of jaw surfaces (3.1.29(3.1.29)) or handles
Note 1 to entry: This term is common for clamps, forceps, needle holders and tweezers.
3.1.21 3.1.21
club handle
pear shaped hollow handle (3.1.23) used to grip and operate the plaster scissors
Note 1 to entry: This term is common for scissors and shears.
3.1.22 3.1.22
fenestrated handle
handle used to pull
Note 1 to entry: This term is common for retractors.
3.1.23 3.1.23
hollow handle
handle used to reduce the instrument weight of the instrument
Note 1 to entry: This term is common for retractors, curettes, raspatories.
3.1.24 3.1.24
knob
blunt element protruding from the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for probes, scissors and shears.
3.1.25 3.1.25
moveable part
part of an instrument with a ring (3.1.32(3.1.32)) where the joining element (screw or pin) is not fixed
Note 1 to entry: This term is common for forceps and scissors and shears.
3.1.26 3.1.26
rigid part
part of an instrument with a ring (3.1.32(3.1.32)) where the joining element (screw or pin) is fixed
Note 1 to entry: This term is common for forceps and scissors and shears.
3.1.27 3.1.27
jaw
functional component of working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for clamps, forceps, needle holders and tweezers.
3.1.28 3.1.28
jaw width
width of the functional component of the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for clamps, forceps, needle holders and tweezers.
3.1.29 3.1.29
jaw surface
part of the working end (3.1.2(3.1.2)) that grips, holds or severs tissue, organs, medical supplies or medical
equipment
Note 1 to entry: This term is common for clamps, needle holders, tweezers and forceps.
3.1.30 3.1.30
jaw serration
serration
profile of the jaw surfaces (3.1.29(3.1.29))
Note 1 to entry: This term is common for clamps, needle holders, tweezers and forceps.
3.1.31 3.1.31
mouse tooth
sharp tapered teeth for traumatic gripping of tissue
Note 1 to entry: This term is common for clamps, tweezers and forceps.
ISO/DISFDIS 7554-1:20252026(en)
3.1.32 3.1.32
ring
circular part at the proximal end (3.1.12(3.1.12)) for entry of the fingers
Note 1 to entry: This term is common for clamps, needle holders, forceps and scissors.
3.1.33 3.1.33
scraper
sharp angled edge at the end of the connection part
Note 1 to entry: This term is common for tweezers and knives.
3.1.34 3.1.34
actuator
moveable component that activates the function in instruments with sliding shaft
Note 1 to entry: This term is common for scissors, shears, bone punches, rongeurs and conchotomes.
3.1.35 3.1.35
lock
component to hold the instrument in a locked state
Note 1 to entry: This term is common for tweezers.
3.1.36 3.1.36
joint
part of the instrument with which the two instrument parts are rotatably connected
Note 1 to entry: This term is common for clamps, needle holders, forceps, scissors and shears.
3.1.37 3.1.37
interlock
ratchet
component to lock the instrument in a defined position
Note 1 to entry: This term is common for clamps, needle holders, tweezers and forceps.
3.1.38 3.1.38
set screw
component to variably lock the working end (3.1.2(3.1.2))
Note 1 to entry: This term is common for tweezers and forceps.
3.1.39 3.1.39
guiding pin
component that prevents lateral shifting of the working end (3.1.2) from the intended position
Note 1 to entry: This term is common for clamps, forceps, and tweezers.

3.2 TweezersTerms related to tweezers and their components
3.2.1 Types of Tweezers
3.2.1.1
3.2.1 tweezerTerms related to types of tweezers
3.2.1.1
tweezers with guiding pin (standard assembly)
instrument with a jaw (3.1.27) that is pushed apart by spring force
Note 1 to entry: See Figure 1Figure 1.
The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location.

Key
1 jaw surface (3.1.29)
2 gripping surface
3 spring (3.1.14)
4 guiding pin (3.1.39)
5 leg
6 connection part
7 jaw width (3.1.28)
8 jaw (3.1.27
ISO/DISFDIS 7554-1:20252026(en)
1 jaw surface 6 connection part
2 gripping surface 7 jaw width
3 spring 8 jaw
4 guiding pin 9 mirror
5 leg
)
9 mirror
Figure 1 — Tweezers with guiding pin
3.2.1.2
3.2.1.2 tweezer
tweezers with spring lock
instrument with a jaw (3.1.27) that is pushed apart by spring force and that can be locked in a defined position
with a lock (3.1.35) which automatically locks when a defined jaw closure position is reached
Note 1 to entry: See Figure 2Figure 2.
The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location.

Key
1 lock (3.1.35)
Figure 2 — Tweezers with spring lock
3.2.1.3
3.2.1.3 tweezer
tweezers with pin lock
instrument with a jaw (3.1.27) that is pushed apart by spring force and that can be locked manually in a
defined position with a slider
Note 1 to entry: See Figure 3Figure 3.
Key
1 pin
2 lock (3.1.35)
Figure 3 — Tweezers with pin lock
3.2.1.4
3.2.1.4 tweezer
tweezers with set screw
instrument with a jaw (3.1.27) that is pushed apart by spring force and that can be locked by being pressed
together with a set screw (3.1.38)
Note 1 to entry: See Figure 4Figure 4.
ISO/DISFDIS 7554-1:20252026(en)

Key
1 set screw (3.1.38)
Figure 4 — Tweezers with set screw
3.2.2 Terms related to leg forms of tweezers
3.2.2.1
3.2.2.1
tweezers with straight leg legs
instrumenttweezers with a base line that is a straight line in relation to the base line of the instrument
Note 1 to entry: See Figure 5Figure 5.

Figure 5— straight — Straight legs
3.2.2.2
3.2.2.2
tweezers with bent/ legs
tweezers with slightly bent legs
instrumenttweezers with a base line that is bent sideways in relation to the base line of the instrument
Note 1 to entry: See Figure 6Figure 6.

Figure 6 —bent — Bent, slightly bent legs
3.2.2.3
3.2.2.3
tweezers with double-bent legs
instrumenttweezers with a base line that is bent sideways twice in relation to the base line of the instrument
Note 1 to entry: See Figure 7Figure 7.

Figure 7 — double — Double bent legs
3.2.2.4
3.2.2.4
tweezers with knee-angled legs
tweezers with knee-bent legs
tweezers with a base line that is knee-bent in relation to the base line of the instrument
Note 1 to entry: See Figure 8Figure 8.
ISO/DISFDIS 7554-1:20252026(en)

Figure 8 — knee — Knee-angled, knee-bent legs
3.2.2.5
3.2.2.5
tweezers with bayonet-shaped legs
tweezers with a special shape that allows surgeons to work without blocking their own line of view.
Note 1 to entry: See Figure 9Figure 9.

Figure 9 — bayonet — Bayonet-shaped legs
3.2.2.6
3.2.2.6
tweezers with crossed legs
tweezers with special type of tweezerslegs, where the spring force holds the closed position
Note 1 to entry: See Figure 10Figure 10.
Figure 10 — cross — Crossed legs
3.2.3 Terms related to jaw types of tweezers
3.2.3.1 3.2.3.1
smooth jaws
jaws without serration (3.1.30) or teeth on the jaw surface (3.1.29)
Note 1 to entry: See Figure 11Figure 11.

Figure 11 — smooth — Smooth anatomical jaw
3.2.3.2 3.2.3.2
smooth, surgical jaws
jaws without serration (3.1.30) but with a mouse tooth (3.1.31) on the jaw surface (3.1.29)
Note 1 to entry: See Figure 12Figure 12.
ISO/DISFDIS 7554-1:20252026(en)

Figure 12 —smooth — Smooth surgical jaw jaws with mouse tooth on the jaw surface
3.2.3.3 3.2.3.3
plateau
partial elevated grasping surface at the working end (3.1.2)
Note 1 to entry: See Figure 13Figure 13.

Key
1 plateau
Figure 13 — plateau — Plateau
3.2.3.4 3.2.3.4
anatomical, windowed, round or oval jaws
jaws with a special jaw geometriesgeometry, to grasp larger areas of tissue securely
Note 1 to entry: See Figure 14Figure 14.
Key
1 window
Figure 14 — anatomical windowed jaws (fromFrom top to bottom: round; oval) .
3.2.3.5
Figure 14 — Anatomical windowed jaws
3.2.3.5
serrated, anatomical jaw
jaws with a specific cross-serrated pattern
Note 1 to entry: See Figure 15Figure 15.
ISO/DISFDIS 7554-1:20252026(en)

Key
1 serration (3.1.30)
Figure 15 — serrated — Serrated, anatomical jaws
3.2.3.53.2.3.6 3.2.3.6
serrated, atraumatic jaws
jaws with a specific toothed pattern designed to grasp fragile tissues securely without causing damage
Note 1 to entry: See Figure 16Figure 16.

Figure 16 — serrated, atraumatic jaws (from

From top to bottom: type “De Bakey;”; type “Cooley)”.
3.2.3.7
Figure 16 — Serrated, atraumatic jaws
3.2.3.7
serrated, windowed jaws
oval jaws with cross-serrated surface and window to grasp tissue securely
Note 1 to entry: See Figure 17Figure 17.

Key
1 window
Figure 17 — serrated — Serrated, windowed jaws
3.2.3.63.2.3.8 3.2.3.8
serrated, surgical jaws
jaws with mouse tooth (3.1.31) and a serrated area
Note 1 to entry: See Figure 18Figure 18.
Note 2 to entry: The serration (3.1.30) can have 1x2, 2x3,1×2 teeth, 2×3 teeth, etc.

Figure 18 — serrated — Serrated, surgical jaws (1:×2 teeth)
ISO/DISFDIS 7554-1:20252026(en)
3.2.4 Terms related to connection types forof tweezers
3.2.4.1 3.2.4.1
two-part tweezer joint
instrument made out of two single parts, joined at the proximal end (3.1.12)
Note 1 to entry: See Figure 19Figure 19.

Figure 19 — Two-part tweezer joint
3.2.4.2 3.2.4.2
one-part tweezer joint
u-shaped instrument produced of one single part bendedbent at the proximal end (3.1.12)
Note 1 to entry: See Figure 20Figure 20.

Figure 20 — One-part tweezer joint
3.2.5 Terms related to grip surfaces of tweezers
3.2.5.1 3.2.5.1
cross-grooved grip surface
grip surface (3.1.17) with a cross-grooved pattern on the grip surface for a secure holding
Note 1 to entry: See Figure 21Figure 21.

Figure 21 — Cross-grooved grip surface
3.2.5.2 3.2.5.2
longitudinally grooved grip surface
grip surface (3.1.17) with a longitudinally grooved pattern on the grip surface for a secure holding
Note 1 to entry: See Figure 22Figure 22.
Figure 22 — Longitudinally grooved grip surfacessurface
3.2.5.3 3.2.5.3
smooth grip surface
feature on legs surface for manual operation without grip enhancing structure
Note 1 to entry: See Figure 23Figure 23.

Figure 23 — smooth — Smooth grip surfacessurface
3.2.6 Terms related to pins of tweezers
3.2.6.1 3.2.6.1
guiding pin
feature on tweezer legs to prevent lateral shifting of the jaws, by guiding a pin through a hole in
the opposite leg
Note 1 to entry: See Figure 24Figure 24.
ISO/DISFDIS 7554-1:20252026(en)

Figure 24 — Guiding pin
3.2.6.2 3.2.6.2
stop pin
feature on tweezers to limit further compression of the jaw surfaces (3.1.29,), operated by a pin
resisting on the opposite leg
Note 1 to entry: See Figure 25Figure 25.

Figure 25 — Stop pin for tweezers
3.2.6.3 3.2.6.3
guiding pin with end stop
feature on tweezer, combining that combines the principle of guiding pin (3.2.6.1) to prevent lateral shifting
of the jaw surfaces (3.1.29) (legs) andwith a stop pin (3.2.6.2) to limit further compression of the jaw surfaces
Note 1 to entry: See Figure 26Figure 26.

Figure 26 — Guiding pin with end stop
3.3 Terms related to scissors and shears
3.3.1 TypesTerms related to types of scissors and shears
3.3.1.1 3.3.1.1
scissors with rings
cutting instrument with blades that are opened and closed by actuating the rings (3.1.32)
Note 1 to entry: Figure 27 See Figure 27. The figure shows a standard assembly for scissors.
ISO/DISFDIS 7554-1:20252026(en)

Key
1 cutting edge (3.1.4)
2 blade back (3.1.8)
3 blades (3.1.6)
4 branch (3.1.9)
5 rings (3.1.32)
Figure 27 — Scissors with ring
3.3.1.2 3.3.1.2
shears with branches and leaf springs
instrument for cutting with blades that are opened by spring force and closed with branches (3.1.9)
Note 1 to entry: See Figure 28Figure 28.
Key
1 gripping surface
2 leaf spring (3.1.7)
3 shank (3.1.9)
Figure 28 — shears — Shears with branches and leaf spring
3.3.1.3 3.3.1.3
plaster scissors with club handle
instrument used to safely cut plaster and fiberglass casts, designed to cut through thick material without
damaging the underlying skin
Note 1 to entry: See Figure 29Figure 29.
ISO/DISFDIS 7554-1:20252026(en)

Key
1 club handle (3.1.21)
2 shank (3.1.9)
Figure 29 — Plaster scissors with club handles
3.3.1.4 3.3.1.4
pincer-type scissors
instrument for cutting with blades that are opened and closed by actuating the moveable part (3.1.25)
Note 1 to entry: See Figure 30Figure 30.
Key
1 blades (3.1.6)
2 actuator (3.1.34)
3 shank (3.1.9)
4 cutting edge (3.1.4)
5 movable part
Figure 30 — pincer — Pincer type scissors
3.3.1.51.1.1.1 3.3.1.5
straight scissors
instrument with a straight base line
Note 1 to entry: See Figure 31.

Figure 31 — straight scissors
ISO/DISFDIS 7554-1:20252026(en)
3.3.2 Terms related to scissors and shears forms
3.3.2.1 3.3.2.1
bent
instrument withhaving a base line that is bent out of the plane of the base line of the instrument
Note 1 to entry: See Figure 31Figure 32.

Figure 32 —bent 31 — Bent
3.3.2.2 3.3.2.2
knee-angled
instrument withhaving a base line that is knee-angled bent on the plane of the base line of the instrument
Note 1 to entry: See Figure 32Figure 33.

Figure 33 — knee32 — Knee angled
3.3.2.3 3.3.2.3
bent sideways
instrument withhaving a base line that is bent to one side in relation to the base line of the instrument
Note 1 to entry: See Figure 33.
Figure 33 — Bent sideways
Note 1 to entry: See Figure 34.

Figure 34 — bent sideways
3.3.2.4 3. 3.2.4
bent, S-shaped
instrument withhaving a base line that is bent in an S-form in relation to the base line of the instrument
Note 1 to entry: See Figure 34Figure 35.
ISO/DISFDIS 7554-1:20252026(en)

Figure 35 — bent34 — Bent, S-shaped
3. 3.2.5
3.3.2.5
bent sideways bayonet-shaped
instrument withhaving a base line that is bent to the side in a bayonet-shaped shape
Note 1 to entry: See Figure 35Figure 36.
Figure 36 —bent35 — Bent sideways, bayonet shaped
3.3.2.6
3. 3.2.6
branches angled or angled on one side
instrument with a base line that is angled or angled on one side
Note 1 to entry: See Figure 37.

Figure 37 — branches angled or angled on one side
branches that are angled or angled on one side in relation to the base line of the instrument
Note 1 to entry: See Figure 36.
ISO/DISFDIS 7554-1:20252026(en)

Figure 36 — Branches angled or angled on one side
3.3.2.7
straight scissors
scissors with a straight base line
Note 1 to entry: See Figure 37.

Figure 37 — Straight scissors
3.3.3 Terms related to blade types forof scissors and shears
3.3.3.1 3.3.3.1
blunt, rounded blade exterior
blade where both blades have blunt tips, additionally the blade backs are blunt, and with a rounded back
Note 1 to entry: See Figure 38Figure 38.

Figure 38 — blunt — Blunt, rounded blade exterior
3.3.3.2 3.3.3.2
pointed, blunt blade
blades with one blade has a pointed tip, the other blade has a and one blunt tip
Note 1 to entry: See Figure 39Figure 39.

Figure 39 — pointed — Pointed blunt blade
3.3.3.3 3.3.3.3
pointed blade
both blades havewith two pointed tips
Note 1 to entry: See Figure 40Figure 40.

Figure 40 — pointed — Pointed blade
3.3.3.4 3.3.3.4
pointed, tapered blade
both blades where both sides are tapered, pointed and with short cutting edges
Note 1 to entry: See Figure 41Figure 41.

Figure 41 — pointed — Pointed tapered blade
3.3.3.5 3.3.3.5
blunt, tapered blade
both blades where both sides are tapered, haswith blunt tips and with short cutting edges
Note 1 to entry: See Figure 42Figure 42.
ISO/DISFDIS 7554-1:20252026(en)

Figure 42 — blunt — Blunt tapered blade
3.3.3.6 3.3.3.6
pointed blade with ball knob
Scissorsblades with a ball-shaped part at the tip on one bladetip, to protect tissue from punctures
Note 1 to entry: See Figure 43Figure 43.

Key
1 ball knob (3.1.24)
Figure 43 — pointed — Pointed blade with ball knob
3.3.3.7 3.3.3.7
blunt blade with probe knob
Scissorsblades with a blunt knop, knob-shaped end at the tip of one bladetip, to protect tissue from punctures
Note 1 to entry: See Figure 44Figure 44.

Key
1 probe knob (3.1.24)
Figure 44 —blunt — Blunt blade with probe knob
3.3.3.8 3.3.3.8
blunt blade with hook knob
scissorsblades with a hook-shaped stopper at the tip of one Scissor bladetip, to prevent slipping of tissue
during cutting
Note 1 to entry: See Figure 45Figure 45.

Key
1 hook knob (3.1.24)
Figure 45 — blunt — Blunt blade with hook knob
3.3.3.9 3.3.3.9
blunt blade with flat knob
scissorsblades with a flat, blunt knop, knob-shaped end at the tip of one bladetip, to protect punctures of tissue
during cutting
Note 1 to entry: See Figure 46Figure 46.
ISO/DISFDIS 7554-1:20252026(en)

Key
1 flat knob (3.1.24)
Figure 46 — blunt — Blunt blade with flat knob
3.3.3.10 3.3.3.10
blade with additional sharp blade back
scissorsblades with two sharp cutting edges at the bladestheir backs
Note 1 to entry: See Figure 47Figure 47.

Figure 47 — blade — Blade with additional sharp blade back
3.3.3.11 3.3.3.11
blade with additional serrated blade back
scissorsblades with two sharp cutting edges and serrations (3.1.30) at the bladetheir backs
Note 1 to entry: See Figure 48Figure 48.
Figure 48 — blade — Blade with additional serrated blade back
3.3.3.12 3.3.3.12
crescent blade
scissorsblades with a crescent shaped notch at on bladeone tip to prevent slipping of tissue and/or sutures,
or both, during cutting
Note 1 to entry: See Figure 49Figure 49.

Figure 49 — crescent — Crescent blade
3.3.3.13 3.3.3.13
combination of needle holder and scissors
Surgicalsurgical instrument with the abilities to grasp a needle for suturing and to cut the suture material
Note 1 to entry: See Figure 50Figure 50.

Figure 50 — combination — Combination of needle holder and scissors
3.3.4 Terms related to branch types of scissors and shears
3.3.4.1 3.3.4.1
club handles
pear shaped handles which improve gripping strength
Note 1 to entry: See Figure 51Figure 51.
ISO/DISFDIS 7554-1:20252026(en)

Figure 51 — club — Club handles
3.3.4.2
3. 3.4.2
ring handles with equal rings
handles with one-finger rings
branches (3.1.9) with rings (3.1.32,), each worked with one finger (one finger rings)
Note 1 to entry: See Figure 52Figure 52.

Figure 52 — ring — Ring handles with equal rings
3.3.4.3
3. 3.4.3
ring handles with unequal ring geometry
handles with multiple-finger rings
branches (3.1.9) with rings (3.1.32) where one of them is worked with one finger and one with two or more
fingers (multiple finger rings)
Note 1 to entry: See Figure 53Figure 53.
Figure 53 — ring — Ring handles with unequal ring geometry
3.3.4.4 3. 3.4.4
cross-grooved grip surface
branches (3.1.9) where the grip surface (3.1.17with ) has a cross-grooved grip surfaces
pattern
Note 1 to entry: See Figure 54Fig
...