Novel Endovascular Interventional Surgical Robotic System Based on Biomimetic Manipulation

Area of Science:

• Biomedical Engineering
• Minimally Invasive Surgery
• Robotics in Medicine

Background:

• Endovascular therapy is vital for vascular diseases.
• Endovascular surgical robots improve therapy but lack universal device support.
• Existing robots require specialized guidewires and catheters.

Purpose of the Study:

• To develop a novel, universal endovascular surgical robotic system.
• To enhance device navigation, advancement, retraction, and stent deployment.
• To address limitations of current robotic systems in supporting diverse devices.

Main Methods:

• Developed a novel endovascular robotic system with a bionic grasping design.
• Utilized a V-shaped relay gripper for continuous rotation without special guidewires/catheters.
• Incorporated feedback-mechanism handles to simulate push resistance and reduce iatrogenic damage.
• Implemented a detachable gripper design to minimize cross-infection and costs.

Main Results:

• The robot demonstrated independent intravascular navigation and device manipulation.
• Successful advancement, retraction, and stent deployment were achieved.
• Six different types of endovascular surgeries were performed using the system.
• The system proved practical and safe in early evaluations.

Conclusions:

• The novel endovascular robotic system offers a universal solution for diverse device handling.
• Its features enhance safety, reduce iatrogenic damage, and lower infection risk.
• The system shows significant promise for improving endovascular surgery outcomes.