/Acoustic powering and stimulation for medical applications

Acoustic powering and stimulation for medical applications

Master projects/internships - Leuven | More than two weeks ago

Acoustic powering and stimulation for medical applications

Focused ultrasounds are used for a wide range of medical applications from deep implant powering (where the acoustic transducers are placed outside of the body and steer toward an implant harvesting the acoustic energy) to non-invasive surgical technology (that uses ultrasound energy to target specific areas of the brain and body for treatments).

In order to generate this acoustic power, microscale piezoelectric transducers are fabricated in large arrays with the potential to control the time delay of every single transducer. Beam-forming techniques is then used to focus the pressure on small spots in space at which the high pressure can then be used for the electronic powering or the tissue stimulation. 
Figure 1Figure 2

The first figure above illustrates the principle of a focused pressure beam: the individual transducers are actuated with a time delay calculated such that the pressure is focused on a narrow spot in space, where the pressure is therefore much stronger. The second figure illustrates the acoustic stimulation of mouse tissues while monitoring its reactions.

Based on the available PMUT, technology this master thesis explores the available beam forming strategies to maximize the focused pressure and control the focus spot. Following a thorough literature study and simulations, the proposed solutions will be implemented and tested in water. ​


Type of project: Thesis

Master's degree: Master of Engineering Technology, Master of Science, Master of Engineering Science

Master program: Mechanical Engineering, Nanoscience & Nanotechnology, Electrotechnics/Electrical Engineering, Electromechanical engineering, Computer Science

Duration: 6-12 months

For further information or for application, please contact Veronique Rochus (veronique.rochus@imec.be).