Pressure Detector Outlet Port Oblique Upward Design
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Solution Overview
Problem
Existing pressure detectors for blood circuits face challenges in smoothly discharging gas and liquid from the liquid-phase portion, particularly when attached to a surface, leading to gas collection issues and inefficient discharge.
Innovation Solution
A pressure detector design with an outlet port extending obliquely upward from the highest point in the liquid-phase portion, an inclined attaching surface, and a vortex-generating inlet port configuration to facilitate the discharge of gas and liquid, ensuring effective separation and discharge of gas and liquid from the liquid-phase portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the outlet port extends in a direction orthogonal to the vertical direction, then gas can be discharged from the liquid-phase portion, but liquid cannot be smoothly discharged and gas discharge is problematic
Solution Approach 1:
The outlet port is configured to extend in multiple directions (both vertically and horizontally) rather than in a single orthogonal direction. This multi-dimensional orientation allows the outlet port to simultaneously facilitate vertical gas discharge and horizontal liquid flow, resolving the contradiction between effective gas discharge and smooth liquid discharge.
2Reliability
If the outlet opening is positioned at the top of the liquid-phase portion, then gas collection is reduced, but liquid discharge becomes less efficient
Solution Approach 1:
The outlet port extends in multiple directions from the outlet opening positioned at the top of the liquid-phase portion. This multi-dimensional configuration allows the outlet to simultaneously achieve gas collection suppression (by positioning at the top) and maintain liquid discharge efficiency (by extending in directions that facilitate liquid flow).
Solution Approach 2:
The outlet port has an asymmetric configuration where the vertical extension prioritizes gas discharge while the horizontal extension facilitates liquid discharge. This asymmetric design allows the single outlet opening to effectively handle both gas and liquid discharge requirements.
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
The design effectively suppresses gas collection and ensures smooth discharge of both liquid and gas from the pressure detector, improving the accuracy and reliability of pressure detection in blood circuits.
Implementation Method 1
a membrane member which separates a liquid-phase portion and a gas-phase portion from each other and is displaceable in accordance with a pressure of liquid supplied to the liquid-phase portion
Implementation Method 2
an inlet port configured to generate a vortex with liquid flowing into the liquid-phase portion from the inlet opening
Implementation Method 3
an outlet port extending obliquely upward from the outlet opening through which the liquid having flowed into the liquid-phase portion is discharged
Data Source
AI summary
A pressure detector including a case connectable to a flow route and attachable to a predetermined attaching surface; and a membrane member attached inside the case and with which a liquid-phase portion to be supplied with the liquid in the flow route and a gas-phase portion to be supplied with gas are separated from each other, the membrane member being displaceable in accordance with a pressure of the liquid supplied to the liquid-phase portion, the pressure detector detecting the pressure of the liquid in the flow route by detecting a pressure in the gas-phase portion. The pressure detector includes an inlet port including a connecting portion connectable to the flow route, and a flow-route portion through which the liquid flows into an inlet opening of the liquid-phase portion; and an outlet port including a connecting portion connectable to the flow route, and a flow-route portion through which the liquid having flowed into the liquid-phase portion is discharged from an outlet opening. The outlet opening is positioned in a part of the liquid-phase portion that includes a highest point in a vertical direction in a state where the case is attached to the predetermined attaching surface, and the outlet port extends obliquely upward from the outlet opening.