Soft Sheet Biological Separation Device Automatic Priming
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Solution Overview
Problem
Existing biological component separation devices require manual inversion for priming, which is considered troublesome and inefficient.
Innovation Solution
A biological component separation device with a device main body formed of a soft material in a sheet-like shape, featuring a filter member that partitions the internal space into chambers, and introduction and lead-out port members connected by lines, allowing for automatic priming without manual inversion by positioning the filter accommodating unit inlet lower than the outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device is configured with traditional priming structure, then the priming operation can be completed, but the device must be turned upside down which is troublesome and reduces ease of operation
Solution Approach 1:
The patent inverts the traditional priming structure by positioning the filter accommodating unit inlet lower than the outlet in the suspended state. This inversion allows blood to enter from the lower inlet and flow upward through the filter, eliminating the need to turn the device upside down for priming while maintaining effective filtration function
Solution Approach 2:
The patent changes the spatial arrangement parameters of the filter accommodating unit, specifically positioning the inlet at a lower elevation than the outlet when the device is suspended. This parameter change enables automatic priming through gravity-driven blood flow without requiring device inversion, thus improving ease of operation
2Ease of manufacture
If the device main body is formed in a sheet-like shape, then manufacturing cost is reduced and ease of manufacture is improved, but the structural strength may be compromised
Solution Approach 1:
The patent employs a sheet-like soft material configuration for the device main body, utilizing flexible film structures to achieve the housing and internal components. This approach simplifies manufacturing processes and reduces costs while maintaining sufficient structural integrity through careful design of the sheet-like form and integration of functional elements
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
Enables automatic priming of the device without the need to turn it upside down, simplifying the process and reducing manufacturing costs due to the sheet-like configuration of the device main body.
Implementation Method 1
a filter member configured to partition an internal space of a filter accommodating unit provided in the device main body into a first chamber and a second chamber, and to capture the predetermined biological component
Implementation Method 2
in a state in which the device main body is suspended, a filter accommodating unit inlet where the filter accommodating unit and the introduction line are connected is positioned lower than a filter accommodating unit outlet where the filter accommodating unit and the lead-out line are connected
Data Source
AI summary
A biological component separation device (10) includes a device main body (12) which is formed of a soft material in a sheet-like shape and in which a filter accommodating unit (24) is provided, a filter member (16), an introduction port member (14a), and a lead-out port member (14b). An introduction line (26) and a lead-out line (28) are provided in the device main body (12). In a state in which the device main body (12) is suspended by an introduction tube (100), a filter accommodating unit inlet (30) where the filter accommodating unit (24) and the introduction line (26) are connected is positioned lower than a filter accommodating unit outlet (32) where the filter accommodating unit (24) and the lead-out line (28) are connected.