Bodily Fluid Sampler With Blocking Part
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Solution Overview
Problem
Conventional bodily fluid samplers using absorbers face challenges in accurately measuring absorbed fluid amounts, leading to variations in sampling and decreased accuracy in examinations due to fluid deterioration during separation.
Innovation Solution
A bodily fluid sampler with a suction part, a main body part containing a ventilation channel, and a blocking part that prevents excess fluid from entering the main body, allowing precise control of fluid volume and preventing deterioration during separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an absorber is used to sample bodily fluid, then the sampling process is simple, but the measurement precision of absorbed fluid amount deteriorates
Solution Approach 1:
The invention removes the absorber from the sampling system and replaces it with a direct suction mechanism. The suction part directly contacts the bodily fluid source and draws fluid through capillary action or pressure differential, eliminating the intermediate absorption step that caused measurement imprecision. This extraction of the absorber component resolves the contradiction by maintaining operational simplicity while achieving precise volume control through the suction mechanism's designed capacity.
Solution Approach 2:
The invention introduces a blocking part as an intermediary component between the suction part and the main body. This blocking part includes a blocking hole with controlled dimensions that regulates fluid flow and prevents over-suction. By using this intermediary structure, the system maintains ease of operation while achieving precise measurement of the sampled fluid amount through controlled flow restriction.
2Measurement precision
If component separation is carried out on absorbed bodily fluid, then the fluid can be analyzed, but the fluid deteriorates during separation
Solution Approach 1:
The invention performs preliminary sampling of the exact required fluid amount using the suction part with controlled capacity. By pre-determining and sampling only the necessary volume, the system minimizes the time and extent of subsequent separation operations. This preliminary precise sampling reduces fluid deterioration during separation while still providing sufficient material for accurate examination analysis.
Solution Approach 2:
The invention avoids excessive separation by sampling only the precise amount needed for analysis. The blocking part with its controlled hole dimensions prevents over-suction, ensuring that separation operations are performed on minimal necessary fluid volume. This partial action approach maintains fluid integrity by limiting exposure to separation processes while still achieving sufficient material for examination.
3Measurement precision
If a blocking part with opening is provided, then fluid flow is controlled, but the device complexity increases
Solution Approach 1:
The invention applies local quality control by placing a blocking part with a specifically dimensioned blocking hole at a critical location within the fluid path. Rather than controlling fluid flow throughout the entire device, the localized blocking hole provides precise flow restriction at the point where fluid enters the main body from the suction part. This localized intervention achieves accurate sampling volume control without requiring complex system-wide modifications.
Solution Approach 2:
The blocking part functions as a flow control element with a controlled opening that regulates fluid passage. The specific dimensions and geometry of the blocking hole create capillary effects or pressure differential control that precisely limits fluid flow. This simple porous or aperture-based mechanism achieves accurate fluid sampling control without adding significant structural complexity to the overall device.
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 precise sampling of a desired bodily fluid amount without absorbers, reducing variations in examination results and maintaining fluid integrity for accurate analysis.
Implementation Method 1
a suction part (1) that sucks a bodily fluid
Implementation Method 2
a suction part (1) that sucks a bodily fluid
Implementation Method 3
a main body part (2) that includes a ventilation channel (21) which allows gas for discharging the bodily fluid sucked by the suction part (1) to pass therethrough
Implementation Method 4
a blocking part (3) that is provided between the main body part (2) and the suction part (1), and the blocking part (3) preventing the bodily fluid sucked by the suction part (1) from flowing into the main body part (2)
Data Source
AI summary
A bodily fluid sampler includes a suction part that sucks the bodily fluid, a main body part that includes a ventilation channel which allows gas for discharging the bodily fluid sucked by the suction part to pass therethrough, and a blocking part that is provided between the main body part and the suction part, and the blocking part preventing the bodily fluid sucked by the suction part from flowing into the main body part. An inner diameter of the opening part formed in the blocking part is smaller than an inner diameter of the suction part at a surface where the suction part and the blocking part make contact with each other, and thus, the bodily fluid is prevented from being sucked by the suction part more than a predetermined amount.