Charles University, Prague, Czech Republic

2 ARTICLES PUBLISHED IN JoVE

Neuroscience

Autonomous and Rechargeable Microneurostimulator Endoscopically Implantable into the Submucosa

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.

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.