Charles University and University Hospital Kralovske Vinohrady 2 articles published in JoVE Bioengineering Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver Marek Novák1, Jozef Rosina1, Robert Gürlich2, Ivana Cibulková3, Jan Hajer3 1Department of Medical Biophysics and Medical Informatics, Third Faculty of Medicine, Charles University, 2Department of General Surgery, Third Faculty of Medicine, Charles University, University Hospital Královské Vinohrady, 3Department of Internal Medicine, Third Faculty of Medicine, Charles University, University Hospital Královské Vinohrady The manuscript presents a miniature implantable pH sensor with ASK modulated wireless output together with a fully passive receiver circuit based on zero-bias Schottky diodes. This solution can be used as a basis in the development of in vivo calibrated electrostimulation therapy devices and for ambulatory pH monitoring. Neuroscience Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa Jan Hajer*1,2, Marek Novák*3 12nd Department of Internal Medicine, Third Faculty of Medicine, Charles University, Prague, Czech Republic, 22nd Department of Internal Medicine, University Hospital Královské Vinohrady, Prague, Czech Republic, 3Czech Technical University in Prague, Czech Republic The application of high-frequency low-energetic stimulation can alleviate the symptoms of gastric dysmotility. In this research, a miniature, endoscopically implantable and wirelessly rechargeable device which is implanted into a submucosal pocket is presented. Successful both-way communication and stimulation control were achieved during an experiment on live pig.
