Quality Control in Production of Orthopaedic Implants0 pages

D LU X

Ultraprecision Metrology & Automation

ULTRAPRECISION OPTICAL CMM

FOR QUALITY CONTROL IN PRODUCTION OF ORTHOPAEDIC IMPLANTS.

HIP JOINTS

The RedLux Optical CMM provides manufacturers of artificial joints with a fast and accurate instrument

which checks component form in a matter of seconds or minutes, reducing down time in production

environments. Our validated methodology* for orthopaedic component measurement uses non-

contact profiling to generate 3 dimensional images with resolution down to 3 nanometres.

The use of proven optical sensors leads to significant increase in measurement speed, while combining

the accuracy of a roundness measurement with the coverage of a CMM, without touching the

component therefore avoiding damage to the bearing surface, this making the instrument ideal for

measuring components in production.

The RedLux Optical CMM provides unparalleled levels of 3D capture for measurement in artificial joints.

Mounted on an anti-vibration platform the machine can be used on the shop floor and gives on-screen

results for analysis as soon as the measurement is completed. For example the deviation from design

intent on a head component of a hip joint can be seen immediately as demonstrated in the data set

below. Measurement results can be stored directly in your database, if required.

The image on the left shows a head with colour showing

deviation from perfect sphere. Here blue and purple depict the

greatest deviation from reference, with a peak-to-peak value of

5.0 um. Additionally, the radius is measured at 15.993 mm.

These measurements will take around 2-3 minutes to execute

and the data is available instantly.

Corresponding measurements can be taken of the cup, the

image on the right showing the deviation from perfect sphere,

with a peak-to-peak value of 9.1 um. Here the radius is

20.058 mm.

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Additionally we are now offering cup rim measurement. This

data set demonstrates the deviation from design intent, giving

you the possibility of better controlling the geometry of cup

edges.

REDLUX

Ultraprecision Metrology & Automation

RedLux Ltd.

3/7 Avenger Close

Chandlers Ford

Southampton, S053 4DQ, UK

Phone: +44(0)23 8026 3095

Email: info@redlux.net

Web: www.redlux.net