Carl Zeiss Optotechnik GmbH - Optische Messtechnik
Monday, 05 September 2016 09:32

3D scanning, in service of our health

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The versatility of the COMET in different areas of intervention. 

SYSTEM / APPLICATION 
COMET 5 

FIELD 
Health / Dental 

CUSTOMER 
Polytechnic Institute of Leiria, Portugal 


TASK 
A young Portuguese doctor tries to build an articulation disc replacement, which may ultimately help patients with anomalies in the jawbone, with the collaboration of the Hospital of Santa Maria, doctors of Badajoz Hospital and the Polytechnic Institute of Leiria. 

The dysfunction in the articulation difficult routine movements like eating, laughing or yawning. To do this, he bought nine sheep, because they have the jawbone similar to ours, to make the experience of replacing the natural disc, being the process accompanied by veterinarians. The disc is generated at the Polytechnic Institute of Leiria and they need to create virtually the natural anatomy of the disc.

PRODUCT AND SOLUTION
The Polytechnic Institute of Leiria has participated in several research projects, national and international, contributing to the scientific and technological advances leading to products, materials and processes more efficient and appropriate by developing new technologies, the definition of the theoretical foundations of such technologies and development methodologies grounded in strong scientific basis.

In many of these projects it was necessary to resort to 3D scanning and Carl Zeiss Optotechnik GmbH offers the perfect solution in the world of 3D scanning, capturing the 3D data, an accurate and efficient labeling.

The COMET 5 system combined with the rotating table allows scanning of complex components in an extremely short time with high detail. This scanning system projects a fringe pattern, which is encoded using a special process, onto the object to be measured. The topography of the object causes deformations and deflections in this fringe pattern. These make the object's surface visible in 3D to the camera systems, which form the second key part of a white light fringe scanner. To determine the individual 3D point coordinates, a triangulation calculation (relationships in the right-angled triangle) is performed from each camera pixel on the basis of beam intersection (projector – camera(s)) and encoding.

RESULT / BENEFITS FOR THE CUSTOMER
The Polytechnic Institute of Leiria, with the COMET 5 system scanned the capture of the anatomy of the joint. Based on its 3D data and with the help of the inspection and data acquisition softwares INSPECTplus and colin3D (both also from ZEISS Optotechnik), they created a replacement disc virtually. With the use of a high end 3D printer, it was finally possible to produce the replacement disk made of a biomaterial.

A now designed long-term study will bring more information on longevity and compatibility.

3D scanning, in service of our health
Replacement disk application


ADVANTAGES
• Simple, flexible and easy to use
• High precision
• Very attractive price
• Intuitive software


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Carl Zeiss Optotechnik GmbH
Georg-Wiesböck-Ring 12
83115 Neubeuern, Germany
+49 8035 8704 0


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