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Endoclamp balloon visualization and automatic placement system.

Hugo Furtado¹, Thomas Stüdeli, Mauro Sette

¹Department of Cardiovascular Surgery, University Medical Centre, Ljubljana, Slovenia. hugo.furtado@meduniwien.ac.at

The Heart Surgery Forum

|August 20, 2010

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This study introduces an augmented reality and robotics system to enhance aortic occlusion safety during minimally invasive cardiac surgery. The new system improves balloon catheter placement accuracy and reduces procedure time.

Area of Science:

Minimally Invasive Cardiac Surgery
Medical Robotics
Augmented Reality in Medicine

Background:

Aortic occlusion is critical in minimally invasive cardiac surgery, with existing techniques having limitations.
The Port Access technique utilizes an endoclamp balloon catheter for aortic occlusion.
Improving the safety and efficacy of aortic occlusion methods is an ongoing challenge.

Purpose of the Study:

To enhance the safety of internal aortic occlusion using the Port Access technique.
To develop a combined augmented reality and robotics system for real-time balloon catheter visualization and control.
To improve the precision and reliability of balloon placement during aortic occlusion procedures.

Main Methods:

A multidisciplinary team designed a human-centered system integrating augmented reality and robotics.

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Real-time balloon catheter position was tracked using a magnetic system.

The system superimposed the balloon's position onto a 3D patient thorax scan and controlled a robotic catheter inserter.

Evaluated through two user studies comparing the system with existing visual aids.

Main Results:

The system significantly improved placement accuracy for aortic occlusion.
Procedure time was reduced compared to current visualization techniques.
User feedback indicated strong support from the system during placement tasks.

Conclusions:

The developed system demonstrated clinical feasibility for aortic occlusion.
Enhanced visualization and robotic control improve procedural safety.
This technology has the potential to increase the adoption of the Port Access technique.