Bathing Chair Nozzle Layout for Independent Pressure and Temperature Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional bathing systems for individuals with severe physical disabilities are ineffective due to distant water nozzles, lack of control over water pressure and temperature, and dependency on assistance, leading to stressful and potentially dangerous bathing experiences.
Innovation Solution
An integrated showering and body support system with strategically located nozzles, a main control system with manual and electro-mechanical valves, two independent flow paths, a soap mixing device, and a pump/reservoir system for adjustable water pressure, allowing for independent control of water temperature and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water nozzles are placed in conventional shower positions, then the shower system is simple to install, but the nozzles are too distant from critical body areas to effectively cleanse disabled persons
Solution Approach 1:
The shower system is divided into multiple independent nozzles positioned at different locations (head, torso, legs, perineal areas) rather than a single showerhead. Each nozzle can be independently adjusted and positioned to target specific body areas, ensuring effective cleansing while maintaining installation simplicity through modular design
Solution Approach 2:
The nozzles are positioned in three-dimensional space around the bathing chair, not just overhead but also at side and lower positions. This spatial distribution allows water to reach all critical body areas including perineal regions, transforming the conventional single-point shower into a multi-dimensional washing system
2Device complexity
If conventional shower systems are used, then the system structure is simple, but the user requires assistance to control water pressure and temperature
Solution Approach 1:
The system incorporates automatic temperature control through mixing valves that maintain safe water temperature without user intervention. Pressure compensation mechanisms automatically adjust water flow to maintain consistent pressure, and the control panel allows disabled users to independently operate all functions without caretaker assistance
Solution Approach 2:
Manual valve operations are replaced with electro-mechanical controls and automatic regulation systems. The system uses motorized mixing valves, electronic pressure sensors, and automated temperature control to replace the need for manual adjustment, enabling independent operation by users with limited mobility
3Device complexity
If water pressure is not regulated, then the system operates simply, but water pressure varies causing burns or discomfort
Solution Approach 1:
The system incorporates pressure sensors that continuously monitor water pressure and provide feedback to automatic pressure compensation mechanisms. When pressure fluctuates, the system automatically adjusts flow rates and activates pressure-regulating valves to maintain stable pressure, preventing both burns from high pressure and inadequate washing from low pressure
Solution Approach 2:
Temperature mixing valves are pre-configured to mix hot and cold water in safe ratios before water reaches the nozzles. Pressure regulation mechanisms are pre-set to maintain optimal pressure ranges, and the system performs preliminary temperature and pressure stabilization before water is delivered to the user, preventing dangerous conditions
4Productivity
If multiple nozzles are added to cover all body areas, then cleansing effectiveness improves, but system complexity and installation difficulty increase
Solution Approach 1:
The comprehensive washing system is segmented into multiple independent nozzle units positioned for different body areas (head, torso, legs, perineal). Each nozzle is a separate, self-contained component with its own positioning mechanism, allowing the complex function of full-body washing to be achieved through simple, modular units that can be installed independently
Solution Approach 2:
The system uses universal connection standards and standardized mounting mechanisms for all nozzles, allowing the same basic component design to serve multiple body areas. The control system provides universal operation for all nozzles through a single interface, and the modular design allows the system to be configured for different user needs while maintaining the same basic architecture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a safe, efficient, and independent bathing experience by ensuring consistent water pressure and temperature, enabling effective cleansing of all body areas with adjustable nozzles and reducing dependency on assistance.
Implementation Method 1
a pump/reservoir system for water pressure adjustment
Implementation Method 2
a water temperature sensor
Data Source
AI summary
A bathing chair which has a water-spraying function for simultaneously effecting a shower discharge from each of a plurality of shower discharge ends and thus assist a person with severe disabilities while cleansing him or herself or while being assisted by a third person. The bathing chair including strategically located nozzles to wash critical body parts, a main control system with manual and electro-mechanical operated valves, two main flow paths with independent control systems, means for combining a soap product and water, a water temperature sensor, and a pump/reservoir system for water pressure adjustment.