Infusate Caddy Priming for Dialysis Systems
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Solution Overview
Problem
Dialysis systems require precise control and monitoring of sodium chloride and sodium bicarbonate concentrations during dialysis sessions, and existing methods lack efficiency in priming and disinfecting the dialysis machine, especially for users with varying skill levels and in non-clinical settings.
Innovation Solution
A method involving an infusate caddy that allows for the controlled connection and priming of sodium chloride and sodium bicarbonate containers with the dialysis machine, using pumps and valves to create a priming flow path, dissolving solutes to form solutions, and pumping these solutions into the dialysate flow path, with conductivity sensors for concentration control, and a disinfection container for system disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual priming methods are used, then the dialysis system can be prepared, but the process is time-consuming and requires high skill levels
Solution Approach 1:
The infusate caddy is pre-configured with containers, connectors, and flow paths before use. The system automatically performs priming operations without requiring manual intervention, thereby reducing both time and skill requirements for the priming process
Solution Approach 2:
The dialysis system performs self-priming through automated pumps and valves that fill flow paths and containers with dialysate automatically. The system monitors and controls the priming process independently, eliminating the need for operator intervention and reducing priming time
2Manufacturing precision
If precise control of solute concentrations is implemented, then dialysate quality is improved, but the system complexity increases
Solution Approach 1:
Conductivity sensors continuously monitor the concentration of solutes in the dialysate and infusate solutions. The system uses this feedback to automatically adjust pump rates and valve positions to maintain precise concentration control, thereby achieving high manufacturing precision without proportionally increasing system complexity
Solution Approach 2:
Manual monitoring and adjustment of solute concentrations is replaced by automated electronic control systems with conductivity sensors. The electronic feedback loop automatically maintains precise concentration control, reducing the need for complex manual operations and training
3Adaptability or versatility
If multiple containers and flow paths are used, then dialysis functionality is enhanced, but connection errors and disinfection challenges increase
Solution Approach 1:
The dialysis system is divided into modular segments including the infusate caddy, dialysate reservoir, and separate flow paths. Each module has standardized connectors that reduce connection errors while maintaining overall system flexibility and adaptability for different dialysis configurations
Solution Approach 2:
The infusate caddy serves as an intermediary component that interfaces between the dialysate preparation system and the dialysis machine. It integrates multiple containers and flow paths in a standardized configuration that simplifies connections and reduces errors while maintaining versatility
4Productivity
If automated priming is implemented, then priming efficiency is improved, but the device complexity increases
Solution Approach 1:
Multiple priming functions are merged into a single automated sequence controlled by the dialysis machine's existing pump and valve system. The system combines container filling, flow path priming, and concentration monitoring into one integrated process, improving productivity without proportionally increasing device complexity
Solution Approach 2:
The existing pump and valve systems in the dialysis machine are made multi-functional to perform both dialysis delivery and automated priming operations. This universal use of existing components achieves automated priming efficiency without adding significant new complexity to the system
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
Ensures accurate and efficient preparation of dialysate solutions and effective disinfection of the dialysis system, allowing for safe and reliable dialysis sessions across different skill levels and settings, including home use.
Implementation Method 1
pumping water using one or more pumps into the priming flow path and through a detachable fluid connector into one or more detachable container containing one or more solutes
Implementation Method 2
with conductivity sensors for concentration control
Data Source
AI summary
The invention relates to devices, systems, and methods for priming, disinfecting, and preparing dialysate and related fluids for use in dialysis. The dialysate and related fluids can be prepared from solutes obtained from infusate containers seated in an infusate caddy. The infusate caddy can be removably positioned in a receiving compartment of a dialysis machine. Similarly, the infusate containers containing the necessary solutes for preparing the dialysate and related fluids can also be removably positioned in the infusate caddy.