Optimized protection against wear and allergens through the use of durable, ceramic coatings

medical implant solutions

America

DOT Coatings

Physical Vapor Deposition Coatings

Surgical instruments and tools are not the only applications where outstanding wear resistance and barrier function are important performance parameters.

The benefits of durable ceramic coat-ings can also be extended to orthopedic implants and dental components.

PVD coatings meet a broad set of needs in both instrument and implant applications.

Since the 1980’s, physical vapor deposi-tion (PVD) coatings have been used to enhance the performance of medical instruments and implants.

While titanium nitride (TiN) remains the most popular coating, technology advances have enabled the development

Background

A sampling of devices where PVD coatings have been successfully utilized include:

• Reamers, burrs, and drivers • Bone screw heads • Knee femoral implants and tibial trays • Ball and socket joints • Dental abutments

DOT Coatings

PVD Coatings

of a wide variety of advanced coatings to meet new applications.

These advanced coatings utilize different chemistries, processing techniques, and in many cases are now multi-layered further improving their adhesion and performance properties.

User needs met

(instruments) • Preserves cutting edges, increasing

tool life

• Reduction of heat at cutting edges, potentially limiting bone necrosis

• Decreased reaming or drilling times

• Durable coloration marker for identification or aesthetic purposes

DOT Coatings

User needs met

(implants)

Characteristics

• Biocompatible barrier layer, potential-ly reducing the risk of allergen release from substrate alloys.

• Hard, smooth coatings (may be further polished) can reduce friction and wear potential in implant socket and ball joints.

• Some PVD coatings have improved wettability characteristics to synovial fluids.

• Durable, aesthetic coloration can mask the dental implant and abutment appearance through thin gingival tissues.

• Hard coating protects screw head broaches and other features from driver or other sources of deformation.

• Coloration marker for identification and aesthetic purposes.

DOT America - Typical PVD Coating Characteristics

PVD Coating Thickness Adhesion Micro Hardness Layers Applications

Titanium Nitride (gold)

1-6 micronsHF3 or better (HRC testing)

~2300 Hv SingleSurgical Instruments, Dental Abutments,

Orthopedic Implants

Titanium Niobium Nitride

(light gold)1-6 microns

HF3 or better (HRC testing)

~2500 Hv SingleOrthopedic Implants

Zirconium Nitride (very light gold)

1-5 micronsHF3 or better (HRC testing)

~2500 Hv SingleOrthopedic Implants

Titanium Carbon Nitride (pink)

1-5 micronsHF3 or better (HRC testing)

~3500 HvMultilayer with TiN

Dental Abutments

Titanium Aluminum Nitride

(dark gray)1-5 microns

HF3 or better (HRC testing)

~3500 Hv Multilayer with TiN

Surgical Instruments

The characteristics of PVD coatings are dependent on their chemistry and coating design.

* Additional coatings are available on request.

DOT America utilizes the cathodic arc physical vapor deposition process to impart durable, thin ceramic coatings on titanium, stainless steel, cobalt chromium, and other metal substrates.In this vacuum deposition process,

atoms are vaporized from metal targets by induction of an electrical arc. The ionized atoms are accelerated onto the device surface where they combine with process gas molecules to form a well adhered, thin film surface.

Technology

Bibliography

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medical implant solutions

America

DOT America, Inc.335 South Towerview DriveColumbia City, IN 46725

Phone: 260-244-5700Fax: 260-244-5701info@dot-coatingusa.comwww.dot-coatingusa.com

DOT Coatings

Since 1992, DOT has successfully PVD coated millions of implants and instruments used in medical applications world-wide.

DOT PVD coated products have been cleared or approved in technology applications in the US, Europe, and Asia.

DOT’s Experience

DOT’s Quality System

DOT America’s PVD processes are validated and its quality system is ISO13485:2016 certified by the BSI Group America.

DOT America operates under US FDA facility registration #3011461101.

1. Biomaterials, 8 (1987), 477-480 “Application of PVD TiN coating to Co-Cr-Mo based surgical implants” A. Wisbey, P.J. Gregson, M. Tuke

2. 15th International Conference on Metallurgical Coatings, San Diego, Ca, USA, 1988 “Surface Modification of Medical Implants and Surgical Devices Using TiN Layers” B.F. Coll, P. Jacquot

3. 17th Annual Meeting of the Society for Biomaterials, Scottsdale, Az, USA, 1991 “Surface Modification of Orthopedic Implants using TiN Coatings” B.F. Coll

4. Surface Modification Technologies, VI, (1993) “The Adhesion of Cathodic Arc Deposited TiN Coatings on Orthopedic Alloys” M. Takeuchi, R. Aharonov, R. Canton, B. Coll, R. Fontana, M. Pellman

5. Bone Joint Surg Br 2000 Mar; 82(2):290-6 “Osseointegration of Ti6Al4V alloy implants coated with titanium nitride by a new method“ G. Sovak et al.

6. The Knee, 11 (2004), 349-355 „Medium-term results of the AMC-unicompartmental knee arthroplasty“ G. Saxler et al.