In-vivo experiments: Magnetic Master-slave motion
These two videos show the first part of the project proof of concept.
In-vito experiments demonstrate the working principle of guiding a catheter inside the atrium with the help of a second catheter placed in the vessels surrounding the heart. The biggest prototype of catheter represents the escorting catheter which is placed in the aorta. The ablation catheter is magnetically displaced smoothly on 23 mm.
This time, the escorting catheter is placed in the oesophagus. The ablation catheter is magnetically displaced smoothly on 26 mm inside the atrium.
Note that at this stage no RF ablation was performed.
This video illustrates the first continuous and transmural ablation line realized in an in-vitro setup. The ablation catheter is in in the front side of the cardiac tissue. The escorting catheter is placed behind the tissue. The ablation line is performed by pushing the catheter at a certain speed based on the temperature measured in from the escorting catheter. The thickness of the tissue corresponds to 5 mm.
The video is 4 times faster.
Simulations with Lausanne Heart Model
This video shows an example of chronic AF using a biophysical model called Lausanne Heart Model developed in the Signal Processing Lab 1 (Jean-Marc Vesin) of the Institute of Electrical Engineering of EPFL.
This video confirms that the Maestro-AF lines may stop AF. This biophysical model was useful to estimate the impact of each ablation line on the termination of AF.
CTI Medtech Event 2010: Award Nomination
Maestro-AF was among the three outstanding medtech projects presented at the CTI Medtech Event 2010 held in Bern on August 31.
This project has been chosen for an award nomination by the CTI Medtech expert team among 50 other medtech projects