Portable Peritoneal Dialysis Fluid Exchange System Automation
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Solution Overview
Problem
Current peritoneal dialysis systems are cumbersome and require large volumes of dialysate, limiting patient mobility and accuracy in fluid exchange measurements, especially during continuous ambulatory peritoneal dialysis (CAPD), which can lead to errors and inefficiencies.
Innovation Solution
A portable and lightweight peritoneal dialysis fluid exchange system that operates independently of the base system, featuring a fluid exchange device with sensors and a data interface to automatically measure and record fluid exchange volumes, and transfer data to the base system for modifying treatment plans, thereby enhancing accuracy and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a base peritoneal dialysis system is used for continuous ambulatory peritoneal dialysis (CAPD), then patient mobility is improved, but measurement precision of fluid exchange volumes deteriorates due to manual monitoring requirements
Solution Approach 1:
The patent replaces manual mechanical monitoring with electronic sensors and automated data processing. Fluid exchange volumes are measured automatically using electronic sensors integrated into the portable system, eliminating the need for manual measurement and recording by patients, thereby maintaining mobility while improving measurement precision.
Solution Approach 2:
The portable peritoneal dialysis system performs self-monitoring of fluid exchange volumes through integrated sensors and automated data collection. The system independently tracks and records dialysate volumes without requiring patient intervention, enabling accurate measurement while preserving patient autonomy and mobility.
2Device complexity
If manual monitoring of dialysate volumes is used during CAPD, then device complexity is reduced, but reliability of treatment data deteriorates due to human error
Solution Approach 1:
The patent replaces manual monitoring processes with electronic sensing and automated data management systems. Sensors continuously measure fluid volumes and the system automatically records and transmits data, eliminating human error while maintaining acceptable system complexity through integration of these components into a portable unit.
Solution Approach 2:
The system incorporates continuous feedback through sensors that monitor fluid exchange volumes in real-time during CAPD. This automated feedback mechanism ensures accurate data collection and transmission to the base system, improving reliability without significantly increasing operational complexity for the patient.
3Measurement precision
If a portable fluid exchange system with sensors is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the fluid exchange system with integrated sensing capabilities and data management functions into a single portable unit. By combining these components, the system achieves high measurement precision while minimizing the increase in device complexity through functional integration rather than separate components.
Solution Approach 2:
The portable system is designed with multi-functionality, serving as both a fluid exchange device and a measurement/data collection system. The integrated sensors and communication interfaces enable the device to perform multiple functions (fluid delivery, volume measurement, data transmission) within a single unit, improving precision without proportionally increasing complexity.
4Productivity
If automated data transfer is implemented between systems, then productivity of treatment management is improved, but device complexity increases
Solution Approach 1:
The patent replaces manual data transfer processes with automated electronic communication between the portable and base systems. Data is automatically transmitted via integrated communication interfaces, improving productivity in treatment management while keeping the data interface complexity manageable through standardized protocols and integrated design.
Data Source
AI summary
A peritoneal dialysis system includes a base peritoneal dialysis system and a peritoneal dialysis fluid exchange system that operates independently of the base system. The base system includes a first cassette including a first patient line configured to be connected to a patient, and a PD cycler. The PD cycler receives the first cassette, and includes a pump that cooperates with the first cassette to deliver dialysate to and drain dialysate from a peritoneal cavity of the patient via the first patient line. The peritoneal dialysis fluid exchange system includes a second cassette including a second patient line configured to be connected to the patient and a fluid exchange device that receives the second cassette. The fluid exchange device includes a data exchange interface operable to transfer patient treatment data from the peritoneal dialysis fluid exchange system to the base peritoneal dialysis system.