Mr Dixon Leung
Dixon Leung received a Bachelor of Engineering (Honours) specialising in Mechatronics Engineering from the University of Auckland in 2013. He went on to complete a Master's degree at the Auckland Bioengineering Institute in 2014. Dixon is currently studying towards a doctorate in the ABI's Implantable Device Group.
Research | Current
Improving the lives of hydrocephalus patients: pressure monitoring and shunt patency
Clinical Problem: An implanted pressure sensor can be very useful for patients with cardiac conditions or hydrocephalous where the internal pressure is crucial for managing treatment. However, the sensor is only useful when its accuracy is maintained and clinical decisions can be made with confidence. All pressure sensors drift with time, and typically intracranial pressure sensors are only used for a period of several days. This project is about creating pressure sensors that can be re-calibrated after they have been implanted to restore their accuracy to a useful level. This has the prospect of extending the use time of implanted sensors to support chronic disease management.
Current Focus: Following the successful demonstration of detecting a touch-down event of a titanium membrane at a specific pressure, a test rig is being established to show how the output from sensors that have drifted can be brought back into a known accuracy level over an interval of 6 months.
Outcome: at the end of this project we will show that the accuracy of an implantable pressure sensor can be maintained to within 1 mmHg over at least a 12 month period.
Selected publications and creative works (Research Outputs)
- Leung, D. P. (2014). Implantable Devices for Hydrocephalus Management The University of Auckland. ResearchSpace@Auckland.