Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Self-powered implants for injured knees

30.06.2008
As news of Tiger Woods' knee injury hits the headlines, a researcher at the University of Southampton has developed a new self-powered sensor to monitor progress during knee operations.

As part of his final year project in his Masters degree in Electromechanical Engineering, which he studied at the University's School of Electronics and Computer Science (ECS), Fauzan Baharudin explored the potential for the use of thick film technology in the development of medical sensors which could be embedded in the knee during surgery.

This new sensor, called Serial In-vivo Transducer (SIT), which uses thick film technology, could measure tendon force during Anterior Cruciate Ligament (ACL) reconstruction.

The ACL is the most commonly injured ligament and is commonly damaged by athletes, in fact it is reported that this is the ligament associated with Tiger Woods’ injury.

Fauzan’s project was supervised by Professor Neil White at ECS, who, in 1991 developed thick film piezoelectric material which made it possible to produce a sensor which could power itself if it were installed in a device that vibrates and would be ideal for appliances where physical connections to the outside world were difficult.

Professor White said: ‘Although this work is still in its infancy, our earlier research in thick-film sensors has shown that it is feasible to apply the technology to medical applications such as prosthetic hands. We have also shown that it is possible to harvest energy from the human body using piezoelectric materials and the knee is subjected to very high levels of force during everyday activities. It therefore seems logical to combine the two approaches to deliver a new type of embedded, self-powered sensors

In Fauzan’s project entitled Assessing the use of thick-film technology in knee surgery: along with energy harvesting in-vivo, he has also incorporated some of this energy harvesting capability into SIT which means that it will be self-powered.

'I chose knee surgery because this has been very little research carried out in this field and I felt a self-powered device could work well in the knee,' he said.

Before developing SIT, Fauzan reviewed the existing devices in this field and concluded that due to its flexibility in fabrication, low capital cost, fast lead time and its suitability for use in the body, thick film technology is the best solution for ACL surgery. Assessment of the energy harvesting feature revealed that the device could produce more than enough energy to power itself.

'It remains a mystery to me, given how common knee injuries are among athletes, that devices like ours have not been developed before now,' said Fauzan. 'A sensible assumption for this is that thick film technology does not reach medical researchers as quickly as it does within the microelectronics community hence the delay in realising the huge potential in developing in vivo transducers.'

Helene Murphy | alfa
Further information:
http://www.soton.ac.uk

More articles from Health and Medicine:

nachricht Diverse amyloid structures and dynamics revealed by high-speed atomic force microscopy
04.08.2020 | Kanazawa University

nachricht New approach for targeted cancer immunotherapy
30.07.2020 | Universität Basel

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: AI & single-cell genomics

New software predicts cell fate

Traditional single-cell sequencing methods help to reveal insights about cellular differences and functions - but they do this with static snapshots only...

Im Focus: TU Graz Researchers synthesize nanoparticles tailored for special applications

“Core-shell” clusters pave the way for new efficient nanomaterials that make catalysts, magnetic and laser sensors or measuring devices for detecting electromagnetic radiation more efficient.

Whether in innovative high-tech materials, more powerful computer chips, pharmaceuticals or in the field of renewable energies, nanoparticles – smallest...

Im Focus: Tailored light inspired by nature

An international research team with Prof. Cornelia Denz from the Institute of Applied Physics at the University of Münster develop for the first time light fields using caustics that do not change during propagation. With the new method, the physicists cleverly exploit light structures that can be seen in rainbows or when light is transmitted through drinking glasses.

Modern applications as high resolution microsopy or micro- or nanoscale material processing require customized laser beams that do not change during...

Im Focus: NYUAD astrophysicist investigates the possibility of life below the surface of Mars

  • A rover expected to explore below the surface of Mars in 2022 has the potential to provide more insights
  • The findings published in Scientific Reports, Springer Nature suggests the presence of traces of water on Mars, raising the question of the possibility of a life-supporting environment

Although no life has been detected on the Martian surface, a new study from astrophysicist and research scientist at the Center for Space Science at NYU Abu...

Im Focus: Manipulating non-magnetic atoms in a chromium halide enables tuning of magnetic properties

New approach creates synthetic layered magnets with unprecedented level of control over their magnetic properties

The magnetic properties of a chromium halide can be tuned by manipulating the non-magnetic atoms in the material, a team, led by Boston College researchers,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“Conference on Laser Polishing – LaP 2020”: The final touches for surfaces

23.07.2020 | Event News

Conference radar for cybersecurity

21.07.2020 | Event News

Contact Tracing Apps against COVID-19: German National Academy Leopoldina hosts international virtual panel discussion

07.07.2020 | Event News

 
Latest News

First radio detection of an extrasolar planetary system around a main-sequence star

04.08.2020 | Physics and Astronomy

The art of making tiny holes

04.08.2020 | Physics and Astronomy

Early Mars was covered in ice sheets, not flowing rivers

04.08.2020 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>