Optical Blood Cell Detector With Adjustable Tube Positioning
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Solution Overview
Problem
Existing blood plasma collection machines lack the ability to detect blood cells within transfusion tubes, complicating the operation and potentially leading to inefficiencies.
Innovation Solution
A high-reliability cell detector is installed on the machine, featuring a vascular frame with a U-shaped tube orifice containing a transmissive photo sensor for real-time blood cell detection, an electromagnetic suction cup for flexible positioning, and base pads with strip protrusions for tube stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If no detection device is installed, then the machine structure remains simple, but operators cannot determine whether there is blood in the transfusion tube
Solution Approach 1:
The patent replaces manual visual inspection with an automated optical detection system. The transmissive photo sensor uses light transmission principles to automatically detect blood cells in the transfusion tube, substituting mechanical/operator-based detection with an optical field-based automated system.
Solution Approach 2:
The patent introduces a transmissive photo sensor as an intermediary detection device between the transfusion tube and the control system. This sensor acts as a mediator that converts the physical presence of blood cells into detectable optical signals, enabling indirect detection without direct contact with the blood.
2Reliability
If a fixed detection device is installed, then detection function is added, but the installation position cannot be adjusted
Solution Approach 1:
The patent transforms the detection device from a fixed static installation to a dynamic adjustable one. The electromagnetic suction cup enables the vascular frame to be positioned at different locations on the machine body by controlling the magnetic attraction force, allowing the detection device to adapt to different installation requirements while maintaining reliable blood detection functionality.
3Stability of the object's composition
If the vascular frame is directly fixed, then installation is stable, but adjustment and removal are difficult
Solution Approach 1:
The patent replaces traditional mechanical fastening methods (screws, clips, or adhesives) with an electromagnetic field-based holding mechanism. The electromagnetic suction cup uses magnetic attraction to securely hold the vascular frame in place during operation, while allowing easy positioning and removal by simply turning the electromagnet on or off, combining stable fixation with operational flexibility.
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 cell detector provides accurate, reliable blood cell detection with minimal bubble interference, ensuring stable operation and easy installation adjustments.
Implementation Method 1
The inner wall of the U-shaped tube orifice is embedded with a transmissive photo sensor, which includes a light emitter and a light receiver
Implementation Method 2
The electromagnetic suction cup is magnetically connected to the top surface of the machine body
Data Source
AI summary
A high-reliability cell detector, including a machine body (4) and a blood cell detector installed on the top of the machine body (4). The blood cell detector includes a vascular frame (1) installed on the top surface of the machine body (4), with a U-shaped tube orifice (2) at the top of the vascular frame (1), and the inner wall of the U-shaped tube orifice (2) is embedded with a transmissive photo sensor (3), which includes a light emitter and a light receiver. By installing a blood cell detector on the top of the blood plasma collection machine, the transfusion tube can be clamped at the top of the blood cell detector, allowing the blood cell detector to detect in real-time whether there are blood cells in the transfusion tube. The blood cell detector has high recognition accuracy, high reliability, and strong resistance to bubble interference. By embedding an electromagnetic suction cup (5) at the bottom of the blood cell detector, the installation position of the blood cell detector can be flexibly adjusted according to actual usage.