Fecobionics: A Novel Bionics Device for Studying Defecation

Area of Science:

• Biomedical Engineering
• Gastroenterology
• Bionics

Background:

• Anorectal disorders affect up to 25% of the population, often being poorly recognized and treated.
• Current diagnostic methods for anorectal function are limited.
• A need exists for advanced tools to accurately assess defecation dynamics.

Purpose of the Study:

• To develop and validate Fecobionics, a novel bionics device simulating the defecation process.
• To evaluate Fecobionics' capability in measuring key parameters of anorectal function.
• To explore the potential clinical applications of Fecobionics in diagnosing and managing anorectal disorders.

Main Methods:

• Development of Fecobionics, a simulated stool with embedded electronics and a distensible bag.
• Validation of the device through benchtop testing and in vivo experiments in pigs and human subjects.
• Focus on measuring pressure signatures, bending characteristics (anorectal angle), impedance, and data transmission.

Main Results:

• Fecobionics successfully simulated stool consistency and shape.
• Accurate pressure, orientation, and geometric profile data were obtained both in vitro and in vivo during defecation.
• The device demonstrated effective measurement of key defecation parameters.

Conclusions:

• Fecobionics is a novel technology that imitates defecation for comprehensive anorectal function assessment.
• The device shows promise for improving the diagnosis and treatment of anorectal disorders.
• Potential long-term application includes biofeedback training for dyssynergic defecation.