Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Improved planning and perfomance of surgery - caesar research center at the Medica in Düsseldorf

22.11.2004


Bonn research center caesar is presenting current medical technology projects at the “Medica 2004” in Düsseldorf (Hall 13, Stand C12) from November 24 – 27, 2004. Scientists support surgeons with innovative computer and laser technology in the planning and performance of operations. At the trade fair they are demonstrating a laser system enabling ultra-fine cuts of just 0.2 mm through bone and cartilage. Researchers are also presenting medical applications for the Rapid Prototyping technology established in mechanical engineering. They develop biocompatible materials for customized implants and manufacture patient-specific anatomical models for operation planning. Furthermore, the scientists are presenting a holographic method of generating three-dimensional facial computer models. These feature extremely high resolution and are used in preparation for complicated operations. caesar cooperates closely with physicians. Some processes are already being subject to clinical testing.



OsteoLas is a laser system which will serve as a high-precision bone cutting instrument for surgeons in future, for example in neuro, cardio, oral and maxillo-facial surgery. It enables non-contact cuttings and three-dimensional ablation of bones and cartilage avoiding thermal damage, bone dust and metal abrasion. For many years, the laser was considered inappropriate for cutting heat sensitive materials such as osseous tissue. The CO2 laser system features extremely short pulses combined with a fine air-water spray. Thus, damage to the surrounding tissue is avoided. The laser system enables non-contact cutting of bone and cartilage at arbitrary geometries for the first time. Fine incisions of 0.2 mm width and up to 7 mm depth are produced in a compact bone. Even deeper incisions can be produced, e.g. for the separation of jawbones. However, the cut width is increased in this process. A mobile prototype of the device has been successfully tested in several series of animal trials. The prototype is intended for further development with clinical and industrial cooperation partners into a medical product for serial manufacture.

At the medica, under the heading “3mat”, the caesar “Rapid Prototyping” research group is presenting its services, ranging from the development of biocompatible materials based on plastics and ceramics to their computer-operated processing. The researchers generate patient-specific anatomical models, implants or prototypes according to customer requirements. The group successfully implements project concepts and services for medical technology manufacturers, physicians and clients. For example, the scientists have developed a special Rapid Prototyping process for the future manufacture of computer designed, patient-specific implants. It is based on the so-called 3D printing process. It can be used for the generation of e.g. bone replacements from biocompatible material featuring properties extremely similar to and which can be resorbed by the body. Furthermore, the research group manufacturers customized anatomical planning models, in particular for oral and maxillo-facial surgery. These are optionally available with realistic soft tissue properties or colored surfaces, as well as transparent models featuring marked interior structures. Hence, operations can be planned more precisely in advance and implemented more rapidly, reducing the probability of complications.


The research group “Holography and Laser Technology” is developing a system for holographic three-dimensional facial topometry. A patient portrait hologram is generated using a short-pulsed laser and subsequently digitized. The data extracted provides a three-dimensional computer model of the patient which can be optionally enlarged or turned. A so-called texture is retrieved from topometric information with high resolution visualizing even skin pores and small hairs. The colored texture imposed on the model produces an extremely lifelike image. With the aid of computer tomography data models are retrieved demonstrating facial bone structure as well as the soft tissue on top. These images provide new options in oral or maxillofacial surgical planning and documentation to achieve optimal functional as well as aesthetic results. The first mobile holographic camera system for clinical three-dimensional facial topometry is currently being tested in the Rehabilitative Surgery clinic of University Hospital Basel (Prof. Dr. Zeilhofer). A further forensic use already deployed is soft tissue reconstruction of cranio findings for the identification of unknown individuals.

Francis Hugenroth | alfa
Further information:
http://www.caesar.de

More articles from Health and Medicine:

nachricht Minimising risks of transplants
22.02.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

nachricht FAU researchers demonstrate that an oxygen sensor in the body reduces inflammation
22.02.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Stiffness matters

22.02.2018 | Life Sciences

Magnetic field traces gas and dust swirling around supermassive black hole

22.02.2018 | Physics and Astronomy

First evidence of surprising ocean warming around Galápagos corals

22.02.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>