Artificial Bladder With Deformable Partition and RFID Sensor
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Solution Overview
Problem
Existing artificial bladder systems face issues with negative pressure generation, fibrosis, adhesion problems, and sensor malfunctions due to power requirements and human movement, which reduce their lifespan and patient quality of life.
Innovation Solution
A double-spaced artificial bladder system with a deformable partition wall and biocompatible materials, powered by a manual working fluid pump and using RFID technology for wireless urine fullness sensing, preventing power source implantation and minimizing sensor malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a power source is implanted to drive urine discharge and sensing, then the functionality is improved, but the lifespan is reduced due to fibrosis and adhesion problems
Solution Approach 1:
The patent removes the power source from the implantable artificial bladder system entirely. Instead of implanting a power source that causes fibrosis and adhesion, the system uses a manual working fluid pump operated outside the body and a passive RFID sensor that requires no power, thereby extracting the harmful power source component while maintaining functionality.
Solution Approach 2:
The artificial bladder system performs urine discharge through manual operation by the patient or caregiver using a working fluid pump, and the RFID sensor automatically detects urine fullness without requiring external power. The system serves itself through passive detection and manual actuation, eliminating the need for implanted power sources that cause tissue reactions.
2Measurement precision
If a sensor is implanted to measure urine fullness, then the measurement capability is improved, but malfunction occurs due to human motion
Solution Approach 1:
The patent introduces a deformable partition wall as an intermediary between the urine reservoir and the RFID sensor. The partition wall translates urine volume changes into positional changes that the RFID sensor can detect, while isolating the sensor from direct exposure to urine and human motion, thereby improving reliability while maintaining measurement precision.
3Object-affected harmful factors
If the bladder is made with small intestine to replace human bladder, then the biological compatibility is improved, but the original bladder role cannot be performed
Solution Approach 1:
The patent divides the artificial bladder into distinct functional modules: a biocompatible outer wall for implantation, a deformable partition wall for sensing, and a working fluid system for discharge. This segmentation allows each component to be optimized for its specific function while maintaining overall biocompatibility, enabling the artificial bladder to perform storage and discharge functions that a simple intestinal pouch cannot achieve.
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 effectively prevents negative pressure and fibrosis, extends device lifespan, and improves patient quality of life by enabling urine discharge and fullness sensing without power, while reducing sensor malfunctions from human movement.
Implementation Method 1
a urine fullness sensor installed in the working fluid space within the outer wall and sensing a urine fullness degree based on the deformation of the partition wall... using RFID technology
Data Source
AI summary
The present invention relates to an artificial bladder system having a double space divided by a partition wall and a wireless, non-powered urine fullness sensor using an RFID technology, which provides an artificial bladder system comprising: an outer wall that forms the outer shape of the artificial bladder, is inserted into the body, and has an inner space; a partition wall, wherein both ends are fixed to the inside of the outer wall, the inner space of the outer wall is divided into a double space of a urine reservoir and a working fluid space, and it is deformable according to amounts of the urine and the working fluid; and a urine fullness sensor installed in the working fluid space and sensing a urine fullness degree based on the deformation of the partition wall.