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SURGICAL SUTURES
FOR OPHTHALMOLOGY
ONATEC® is a registered trademark of FSSB Chirurgische Nadeln GmbH, Jestetten,
Germany, exclusively distributed by GEUDER AG (in most countries)
PREMIUM SURGICAL SUTURES
Surgical sutures are certified medical devices, which re- Geuder AG offers a broad portfolio of surgical needles
place the mechanical bridging function of missing tissue and sutures from Onatec® for almost all ophthalmic
integrity in the short, medium or long term. For quick surgical indications that require precise stitches.
®
and good wound healing, the sutures should create the Onatec sutures meet the highest surgical demands
®
greatest possible contact between the separated tissue and yield optimal results with little scarring. Onatec
parts. Demanding ophthalmic surgical applications stands for quality products made in Germany, which
require high-quality sutures for the best possible wound were developed with leading surgeons to offer
adaptation while at the same time minimizing tissue practical and effective solutions for ophthalmology.
trauma.
THE NEEDLES – HIGHEST PRECISION
IN ITS SMALLEST SCALE
®
Onatec needles are made from a highly tempered and virtually unbreak-
able special steel with high bending resistance. Due to the innovative
and highly automated manufacturing process, precise needle geo-
metries and accurate needle grinds can be realized, which enable
stitching of the finest types of tissue in the smallest space.
The high-quality surface finishing of many Onatec® needles offers
optimal penetration and thus little trauma to the tissue. The result
is a reliable wound adaptation with barely visible scars for the best
possible restoration of tissue function.
2 QUALITY FACTORS
OPTIMIZED PENETRATION FOR THE HIGHEST
OPHTHALMIC SURGICAL REQUIREMENTS:
Penetration Test of Reverse Cutting Needles
Acculine test device – Test media : Povar foil 0.4 mm (Source: FSSB Chirurgische Nadeln GmbH)
0,7 Competitor A, rev. cut. 25-68
0,6 Competitor B, rev. cut. 25-68
0,5 Optimized penetration
®
better* Onatec , DDK 2568
0,4
ce [N] Plastic surgery needle of market leader
0,3 Optimized penetration
For
®
0,2 Onatec , DDKL 2568
0,1
* less penetration force required
0
0 100 200 300 400
Depth [μm]
STEEL
QUALITY
QUALITY FEATURES OF
ONATEC® NEEDLES:
NEEDLE NEEDLE
· High resistance to bending and breakage GEO TIP
METRY SHAPE
· Optimized penetration
· Accurate grind of the needle tip shape
· Low tissue trauma SURFACE
FINISHING
QUALITY FACTORS 3
NEEDLE PROPERTIES
SUTURE TECHNIQUE AND TISSUE DETERMINE
THE SPECIFICATIONS OF THE NEEDLE
THE FOLLOWING FEATURES HAVE AN IMPACT: Chord length (stitch width)
· Needle shape (cross-section)
Suture
· Needle tip
Needle tip Shaft / Swage
· Needle diameter
· Curvature Needle diameter
· Arc length (needle length) Needle Body
· Armed (The choice between single and
double armed enables different techniques Radius (depth of stitch)
or a more cost-effective use)
Ar h)
c length (needle lengt
NEEDLE SHAPE AND NEEDLE TIP
* ** *** * ** *** * ** ***
RS = Taper Point DS = Taper Cutting DSL = Soft Cutting Point
* ** *** * ** ***
DK = Reverse Cutting LZ(L) = Spatula * Cross-section needle tip
** Cross-section needle body
*** Cross-section suture channel
4 NEEDLE PROPERTIES
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