Titanium NitrideAdvanced Coating Technology

Overview

Titanium Nitride

History | Integrity | SecurityWith over ten years of clinical history, titanium nitride (TiN) ceramic

is an innovative surface coating technology, well-established within

the orthopaedic industry1, 2, 3, 4. This coating allows patients to

enjoy the benefits of a ceramic articulation whilst maintaining the

strength and flexibility of their metal implant. The ceramicised outer

layers minimise exposure of the patient’s joint space to metal ions,

reducing the risk of metal allergies and bacterial proliferation2, 5.

Confidence with longevity

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The only ceramic surface coating with more than ten years of clinical history1, 3, 4

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Titanium Nitride

Optimising performance As a ceramic surface, TiN exhibits superior

hardness four times that of cobalt chrome

alloys, low surface roughness and high

wettability with synovial fluids allowing

for optimal wear characteristics3,4,5,6,7.

Its superior surface scratch resistance

prevents implant damage at excessive

contact loads5,6.

TiN ceramic coatings have shown up to 98% reduction in

wear against polyethylene in hip simulator studies6.

.5

.6

.4

.3

.2

.1

00 5 10 15 20 25 30 35 40 45 50

Co-Cr 32mm

TiN 32mm

TiN 47mm

Wea

r, gr

ams

Cycles x 106

Four times harder than cobalt chrome

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The ultimate low wear solution

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Titanium Nitride

Reliability and stability TiN coating is deposited onto the implant via a computer

controlled physical vapour deposition process where metal

vapours are ionized several times and post accelerated onto

the implant surface. This creates consistently thin, 4-5μm,

coatings allowing the metal implant to maintain its strength and

flexibility. The ionic bond between the ceramic coating and metal

substrate provides superior coating bond strength preventing

delamination and implant damage at high contact loads8.

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Over 160,000 implants coated since 19959

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Titanium Nitride

A proven solution to metal allergy TiN surface coating protects patients from

adverse allergic reactions. The ceramic

layer reduces release of metal ions into the

patient’s joint space and minimises bacterial

proliferation2,3. In Ni sensitive patients TiN

provides a simple, effective and well proven

implant solution where the coating acts as a

barrier to metal ion release.

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CoCr uncoated

Wea

r R

ate

mm

3

mill

ion

cycl

es

TiN coated

5

4

3

2

1

0

TiN coated samples

displayed undetectable

nickel traces and a

dramatic reduction in

cobalt ion release in

an emersion test7.

The No. 1 choice for any patient

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Titanium Nitride

History and innovationCorin is dedicated to the use of advanced

coating technologies to improve implant

function and longevity. TiN coating, applied

by DOT GmbH, features on Uniglide,

AMC and Zenith implant ranges providing a

solution for patients with diverse indications.

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Leading the way in surface coating technologies

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Titanium Nitride

The Corinium CentreCirencester, GL7 1YJt: +44(0)1285 659 866f: +44(0)1285 658 960e: info@coringroup.com

www.coringroup.com

References:

1. Saxler G, Temmen D, Bontemps G. Medium-term results of AMC-unicompartmentalknee arthroplasty. The Knee 2004; 11:39-355.

2. Scarano A, Piattelli M, Vrespa G, Caputi S, Piattelli A. Bacterial adhesion on titanium nitride coated and uncoated implants; an in vivo human study. J Oral Implantol 2003; 29(2):80-5.

3. Wisbey A, Gregson PJ, Tuke M. Application of PVD TiN coating to Co-Cr-Mo based surgical implants. Biomaterials 1987; 8:477-480.

4. Coll BF, Jacquot P. Surface modification of medial implants and surgical devices using TiN layers. 15th International Conference on Metallurgical Coatings, San Diego, Ca, USA, 1988.

5. Streicher RM, Schon R, Semlitsch MF. Tribology and possibilities of optimising the wear properties of metal-on-polyethylene combinations for artificial joints.Biomedizinische Technik 1990; 4.

6. Pappas MJ, Makris G, Buechel FF. Titanium nitride ceramic film against polyethylene. A 48 million cycle wear test. Clin Orthop Aug 1995; 317:64-70.

7. DOT GmbH internal test report. Data on file Corin Group.

8. Takeuchi M, Aharonov R, Canton R, Coll B, Fontana R, Pellman M. The adhesion of cathodic arc deposited TiN coatings on orthopaedic alloys. Surface Modification Technologies 1993; VI.

9. Data on file DOT GmbH.

©2009 Corin P No. I947 Rev.0 06/2009 ECR 8926

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