3-D endoscope using a single CCD camera and pneumatic vibration mechanism.

Area of Science:

• Medical Devices
• Surgical Technology
• Endoscopy

Background:

• Current 2D endoscopic imaging poses risks of tissue damage due to inaccurate depth perception.
• Surgeons rely on 2D monitors, leading to challenges in estimating distances between endoscopes, instruments, and surgical sites.
• Existing endoscopic methods lack the necessary depth information for precise surgical maneuvers.

Purpose of the Study:

• To develop a novel 3D endoscope system to improve visualization during endoscopic surgery.
• To mitigate the risk of physical damage to body tissues caused by inaccurate depth perception.
• To enhance surgical precision through stereoscopic imaging capabilities.

Main Methods:

• Development of a Ø5-mm, 3D endoscope utilizing a single 1/10-inch CCD camera.
• Integration of a pneumatic vibration mechanism to generate periodical motion for stereovision.
• Simultaneous measurement of displacement at both proximal and distal ends of the endoscope for validation.

Main Results:

• The developed 3D endoscope achieved a distal end displacement of approximately ±0.25 mm.
• The vibration mechanism enabled synchronized acquisition of left and right endoscopic images for stereoscopic viewing.
• In vivo experiments demonstrated the capability of the 3D endoscope to provide clear 3D visualization of surgical areas.

Conclusions:

• The novel 3D endoscope successfully visualizes internal organs using a single CCD camera and pneumatic vibration.
• The system provides clear 3D images, enabling surgeons to better perceive depth and spatial relationships.
• This technology significantly decreases the risk of iatrogenic injury to fragile tissues during endoscopic procedures.