Commode Wheelchair With Dual-Axis Bowel Stimulation Support
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Solution Overview
Problem
Individuals with spinal cord injuries above the T-12 vertebrae often lose the ability to feel when their rectum is full, leading to impaired mobility and difficulty in using a toilet without assistance, as they cannot feel the need for bowel movements and require a specialized commode wheelchair with a digital stimulation device to induce reflex bowel movements.
Innovation Solution
A commode wheelchair configured to be positioned over a toilet bowl, equipped with a digital stimulation device and a dual-axis support apparatus, allowing users to expel waste through a waste elimination opening in the seat without caregiver assistance, using a shaft with a working end portion that can be positioned below the seat for effective bowel movement induction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a commode wheelchair is equipped with a digital stimulation device and dual-axis support apparatus, then individuals with spinal cord injuries can independently manage bowel movements, but the device complexity increases
Solution Approach 1:
The patent combines the digital stimulation device, dual-axis support apparatus, and commode wheelchair into an integrated system. The support apparatus is mounted directly on the wheelchair frame, and the digital stimulation device is attached to the support apparatus, creating a unified device that provides both mobility and bowel management functions in one system.
Solution Approach 2:
The commode wheelchair with digital stimulation device enables users to independently perform bowel movements without caregiver assistance. The dual-axis support apparatus allows the user to position the digital stimulation device's working end portion below the waste elimination opening, and the user can operate the device themselves to induce reflex bowel movements through digital stimulation.
2Reliability
If the working end portion of the digital stimulation device is positioned below the waste elimination opening, then effective bowel movement induction is achieved, but the structural complexity of the support apparatus increases
Solution Approach 1:
The dual-axis support apparatus provides dynamic positioning capability, allowing the digital stimulation device to be adjusted in two different axes. This enables the working end portion to be precisely positioned below the waste elimination opening while accommodating different user positions and anatomical variations, ensuring reliable bowel movement induction.
Solution Approach 2:
The support apparatus is divided into two independent rotational axes, allowing separate adjustment of the digital stimulation device in each axis. This segmentation provides flexible positioning control and simplifies the adjustment mechanism compared to a fully rigid mounting system.
3Object-affected harmful factors
If a splash guard with sidewall is added around the waste elimination opening, then hygiene and comfort are improved, but the device complexity increases
Solution Approach 1:
The splash guard is designed as a separate component with a sidewall that extends downward from the seat, creating a protective barrier around the waste elimination opening. This extracted element specifically addresses the splash prevention function without complicating the main structural components of the wheelchair.
Data Source
AI summary
Disclosed is a commode wheelchair, though in some implementations the wheels may be omitted. The exemplary implementation of the commode wheelchair is configured to be positioned above a toilet bowl and includes a digital stimulation device used to induce a bowel movement. Through a waste elimination opening in the seat and without assistance from a caregiver, the user may expel their solid waste into the toilet bowl using the digital stimulation device.