Integrated Cycler for On-Demand Peritoneal Dialysate Generation
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Solution Overview
Problem
Existing peritoneal dialysis systems face challenges in generating sterile and purified dialysate from non-sterile water sources, require significant storage space, and are costly due to pre-packaged dialysate needs, leading to complications like peritonitis and high storage demands.
Innovation Solution
A system that generates peritoneal dialysate on demand using a sterilization module with ultrafilters, UV light, and microbial filters, integrated with a cycler for direct infusion, reducing storage needs and ensuring sterility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-packaged dialysate is used to ensure sterility and purity, then infection risk is reduced, but storage space requirements and cost increase significantly
Solution Approach 1:
The system performs preliminary sterilization and purification actions by integrating a sterilization module that treats water before dialysate preparation. This allows the system to generate sterile dialysate on-demand without requiring large quantities of pre-packaged sterile dialysate to be stored in advance.
Solution Approach 2:
The system serves itself by generating its own sterile dialysate through an integrated sterilization module and preparation system. This self-service capability eliminates the need to store large amounts of pre-packaged dialysate, as the system can produce sterile dialysate on-demand from non-sterile water sources.
2Reliability
If pre-packaged dialysate is used to ensure sterility, then peritonitis risk is reduced, but manufacturing and shipping costs increase
Solution Approach 1:
The system produces its own sterile dialysate on-demand using an integrated sterilization module, eliminating the need to purchase expensive pre-packaged dialysate. This self-service approach reduces manufacturing and shipping costs while maintaining sterility through the built-in UV and filtration systems.
Solution Approach 2:
The invention extracts the sterilization function from the pre-packaged dialysate product and integrates it into the dialysis system itself. By taking out the sterilization capability and embedding it in the system, the patent eliminates the need to store and transport expensive pre-sterilized dialysate packages.
3Productivity
If large volumes of dialysate are stored to meet daily exchange requirements, then treatment availability is ensured, but storage space and labor requirements increase
Solution Approach 1:
The system performs preliminary preparation by integrating all necessary components (sterilization module, concentrate storage, mixing chambers) to enable rapid on-demand dialysate generation. This preliminary setup ensures treatment availability without requiring large storage volumes, as the system can quickly produce the required dialysate when needed.
Solution Approach 2:
The system transitions from static storage of large dialysate volumes to dynamic on-demand generation. The automated preparation system with peristaltic pumps and controlled mixing enables the system to dynamically produce the exact amount of dialysate needed at the time of treatment, reducing storage requirements while maintaining treatment availability.
4Ease of operation
If automated peritoneal dialysis is implemented to reduce manual effort, then ease of operation improves, but storage space requirements increase due to larger dialysate volumes
Solution Approach 1:
The automated system serves itself by generating dialysate on-demand through an integrated preparation module, eliminating the need for large storage volumes. The system automatically mixes concentrates, sterilizes water, and delivers dialysate as needed, providing ease of operation without the storage burden of traditional automated systems.
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 sterile dialysate on demand, minimizing storage requirements and reducing the risk of infection, while lowering costs and space needs for home use.
Implementation Method 1
a dialysate generation flow path containing a sterilization module... an ultrafilter
Implementation Method 2
Ultraviolet (UV) light source
Implementation Method 3
microbial filter
Implementation Method 4
Blood is cleaned inside the patient using the patient's own peritoneum as a type of dialysis membrane
Implementation Method 5
Blood is cleaned inside the patient using the patient's own peritoneum as a type of dialysis membrane
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Systems and methods of generating peritoneal dialysate and using the peritoneal dialysate with an integrated cycler are provided. The systems and methods use a water purification module (103), a sterilization module (106, 107, 109) and concentrates (104) to prepare peritoneal dialysate from source water and infuse the prepared peritoneal dialysate into a patient with an integrated cycler (110). Optional dialysate storage containers (114) are provided for storage of the peritoneal dialysate prior to use.