Blood Sampling Container with Venting Filter and Level Indication
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Solution Overview
Problem
Existing blood sample containers struggle to allow workers to easily recognize the completion of initial flow blood collection, secure a required minimum amount, and fine-adjust the amount of initial flow blood collected, as the liquid level changes are not easily visible due to large container widths, leading to inconsistencies in blood collection.
Innovation Solution
A blood sample container with a container body, blood inflow and outflow ports, and an exhaust section featuring a hydrophilic and bacteria-impermeable filter positioned at the upper end, including a small-diameter tubular passage for air discharge and an indicating section to mark the liquid level, allowing workers to visually confirm the completion and amount of initial flow blood collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large container width is used, then the container can hold sufficient blood volume, but the liquid level changes are not easily visible making it difficult to recognize completion of blood collection
Solution Approach 1:
The patent introduces a vertical observation dimension by positioning the liquid level observation window at the side of the container body, allowing workers to visually detect liquid level changes from the side rather than viewing the entire width. This dimensional change enables clear visibility of liquid level changes even when the container has sufficient width to hold required blood volume.
2Ease of operation
If manual clamping is used to stop initial flow blood collection, then the worker has control over the process, but the collection amount varies among workers leading to excessive or insufficient blood collection
Solution Approach 1:
The patent implements visual feedback by providing a liquid level observation window that allows workers to continuously monitor the blood collection process. When the liquid level reaches the predetermined maximum mark, the worker can immediately stop collection, ensuring consistent blood collection amounts without excessive or insufficient collection while maintaining manual control.
Solution Approach 2:
The patent applies preliminary action by pre-marking the maximum liquid level position on the container before use. This predetermined mark guides the worker to stop blood collection at the appropriate point, ensuring consistent collection amounts across different workers while maintaining ease of manual operation.
3Reliability
If insufficient initial flow blood is collected, then the donor's safety is compromised or blood loss occurs, but various tests cannot be conducted and blood product manufacturing is prevented
Solution Approach 1:
The patent applies preliminary action by pre-marking both minimum and maximum liquid level positions on the container. These predetermined marks ensure that workers can visually confirm that the required minimum amount has been collected before proceeding, thereby ensuring donor safety and preventing insufficient blood collection that would compromise test validity or blood product manufacturing.
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 workers to easily recognize the completion of initial flow blood collection, secure a required minimum amount, and fine-adjust the amount collected at the level of several ml, ensuring accurate blood collection and preventing excessive or insufficient blood collection.
Implementation Method 1
an exhaust section communicating with the internal space and having a hydrophilic and bacteria-impermeable filter, that allows the air in the internal space to be discharged
Implementation Method 2
a hydrophilic and bacteria-impermeable filter, that allows the air in the internal space to be discharged
Implementation Method 3
a small-diameter tubular passage that allows the air in the internal space to be discharged by a predetermined amount of the initial flow blood that has flown into the passage
Data Source
Figure 1
Figure 2(a)~2(c)
Figure 3
AI summary
A blood sample container (1A) according to the present invention includes: a container body section (2) having an internal space (3) for storing initial flow blood to be used for testing; a blood inflow port (5) that allows the initial flow blood to flow in; a blood outflow port (6) that allows the initial flow blood to flow out; and an exhaust section (7) having a hydrophilic and bacteria-impermeable filter (12) that allows the air in the internal space (3) to be discharged, the exhaust section (7) being positioned at an upper end of the container body section (2) when the container body (1A) is used in a manner such that the blood outflow port (6) faces in a vertical direction and having a small-diameter tubular passage (11) that allows the air in the internal space (3) to be discharged by a predetermined amount of the initial flow blood that has flown into the passage (11).