Product Manager Application Technology – Raumedic
Speaks at ID WORLD on Healthcare Innovation
Philipp Wierick started to work with RFID-based telemetric systems in medical fields during his final thesis in cooperation with Raumedic in late 2009. Since 2010 he works at Raumedic as a Product Manager and focuses on development of wired and telemetric medical pressure sensors.
“A NEW RFID TELEMETRIC INTRACRANIAL PRESSURE MONITOR DEVICE, HISTORY AND FIRST CLINICAL EXPERIENCE”
The knowledge of the intracranial pressure (ICP) is very crucial for a successful and sustainable hydrocephalus therapy since the liquor drainage shunt valve is adjusted according to the ICP. However, both over- and underdrainage have to be avoided because this may lead to severe cerebral damages. By conventionally determining an ICP, a pressure sensing catheter is put from outside into the skull through a separate borehole. This method constrains the patient’s mobility and additionally, it is accompanied by a high infection risk, which limits the time of application. On the other hand, a continuous ICP monitoring is required due to variations in liquor production depending on the time of day. We therefore present an implantable telemetric pressure sensor. For continuous monitoring an implant was developed and wireless (RFID) data transmission was implemented. With this implant, the skin still serves as natural barrier against infections (i.e. no risk of infection) and furthermore, the patient is completely mobile. The results determined in lab and animal model show, that this telemetric sensor complies very well with a conventional catheter regarding ICP range, dynamics, and fine structure. Hence, this implant is a fundamental part for reliably controlling a shunt valve, which only drains as and when required.