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ValveTech: A Novel Robotic Approach for Minimally Invasive Aortic Valve Replacement
IEEE Transactions on Bio-Medical Engineering
|September 15, 2020
Summary
A novel surgical robot, ValveTech, offers a controllable solution for minimally invasive aortic valve replacement. This robotic system demonstrated efficient artificial valve delivery with precise placement in simulated surgeries.
Area of Science:
- Cardiovascular Surgery
- Medical Robotics
- Minimally Invasive Procedures
Background:
- Aortic valve disease is prevalent in the elderly, often necessitating artificial valve replacement.
- Current procedures can be complex, highlighting the need for improved surgical tools.
Purpose of the Study:
- To introduce and evaluate the ValveTech robot for minimally invasive aortic valve surgery.
- To assess the robot's controllability and efficiency in artificial valve delivery.
Main Methods:
- A robot (ValveTech) with a flexible manipulator, endoscopic vision, and 5 degrees of freedom was designed and prototyped.
- Ten cardiac surgeons evaluated the robot in a simulated surgical environment using an aortic mockup.
- Valve placement accuracy was objectively measured against ideal positioning.
Main Results:
- Surgeons positively evaluated the robot's performance.
- The system achieved faster valve delivery times.
- Measured misalignments included 3.8 mm axially, 16.3° rotationally, and 8.8° in the commissure plane.
Conclusions:
- The ValveTech robot successfully facilitated artificial valve delivery under endoscopic vision.
- The system shows promise as an alternative for minimally invasive aortic valve surgery, potentially enhancing patient outcomes.
