Blood Purification Device Cassette Integration
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Solution Overview
Problem
Conventional blood purification devices require separate handling and measurement of wet parts, such as the removed water container, which complicates the handling process.
Innovation Solution
A blood purification device design that integrates a removable cassette with a built-in removed water container and a load detector, allowing for simplified measurement and handling by transmitting the load of the container to the device body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the removed water container is separately attached to the blood purification device, then the measurement of removed water can be performed, but the handling complexity increases
Solution Approach 1:
The removed water container is integrated into the cassette assembly, which is then attached to the device body. This merging of the container with the cassette reduces handling steps and simplifies operation while maintaining measurement capability through the load detector that measures the weight of the integrated assembly.
2Measurement precision
If the removed water container is placed outside the blood purification device, then the weight measurement can be performed, but the handling and integration become more difficult
Solution Approach 1:
The removed water container is merged with the cassette to form an integrated assembly. This integration allows the container to be easily attached and detached as a single unit with the device body, significantly improving handling ease while the load detector continues to perform accurate weight measurements of the integrated assembly.
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
This configuration simplifies the handling and measurement of the removed water container, enhancing the overall usability and efficiency of the blood purification device.
Implementation Method 1
a load transmission mechanism configured to transmit to the load detector the load of the removed water container housed in the cassette
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A blood purification device (100) includes a device body (10) and a cassette (30). The cassette (30) includes: a casing (31) that accommodates a removal water receptacle (37); and pump tube (41). The device body (10) includes fingers (15), a driving unit (16), and a housing (11). The cassette (30) can be attached to and removed from the housing (11) of the device body (10) so that the pump tubes (41) are positioned between the plurality of fingers (15) and the outer surfaces of the casing (31).