Medical Test Card Auto-Ejection Structure for Timely Removal
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Solution Overview
Problem
Current medical testing equipment faces issues with timely and reliable ejection of tested objects, such as medical test cards, which can lead to instrument damage or contamination due to incomplete or delayed removal processes, particularly when staff are not present to manually remove the cards after testing is finished.
Innovation Solution
A medical tested object auto-ejection structure is implemented, featuring a rebounding device and a clamping buckle system with a transmission mechanism, where the test card is locked during measurement and automatically ejected after the test is completed, utilizing a lever and gear system to release the card from the instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If electronic lighting display is used to prompt test completion, then the instrument can indicate when testing is finished, but the tested object may not be removed in time causing contamination or instrument damage
Solution Approach 1:
The system automatically ejects the tested object based on test completion detection without requiring staff intervention. The ejection mechanism is triggered automatically when the test is finished, making the system self-serving and eliminating the risk of human error in timely removal.
Solution Approach 2:
The system uses a sensor to detect whether the tested object is present in the detection chamber. When the object is removed, the sensor detects the empty state and triggers the ejection mechanism, creating a feedback loop that ensures automatic removal at the correct time.
2Measurement precision
If tested object is held securely during testing, then measurement accuracy is maintained, but automatic ejection becomes more complex
Solution Approach 1:
The clamping mechanism and ejection mechanism are merged into a single integrated system. The same clamping buckle that secures the tested object during testing is used to eject it after testing, reducing the need for separate mechanisms and simplifying the overall device complexity.
Solution Approach 2:
The clamping force is dynamically adjusted based on the testing state. During testing, the clamping buckle holds the object firmly; after testing, the clamping force is released automatically to enable ejection, allowing the system to transition between different functional states.
3Object-affected harmful factors
If tested object is ejected too early, then contamination risk is reduced, but the instrument may be damaged and measurements may be incorrect
Solution Approach 1:
A sensor detects the presence or absence of the tested object in the detection chamber. The system only ejects the object when the sensor confirms the test is complete and the chamber is ready, providing feedback control that prevents premature ejection and ensures instrument safety.
Solution Approach 2:
The system performs preliminary detection to confirm test completion before triggering the ejection mechanism. This preliminary action ensures that the object is only ejected when appropriate, preventing both premature and delayed ejection scenarios.
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
Ensures timely and reliable ejection of tested objects, preventing contamination and instrument damage by automating the removal process, thereby enhancing the reliability and efficiency of medical testing equipment.
Implementation Method 1
a spring pressing against the detection instrument is disposed at the back end of the tension rod
Implementation Method 2
the transmission device comprises a lever and a gear, wherein one end of the lever presses against and is connected with a tail end of the tension rod, and the other end of the lever presses against a boss arranged on the gear
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A medical tested object auto-ejection structure comprises a detection instrument and a tested object (1). An insertion port is formed in the detection instrument. When the tested object (1) is inserted in the instrument through the insertion port, the bottom end of the tested object (1) presses a bulge (21) used for rebounding, and a raised step (11) arranged on the surface of one side of the tested object (1) is locked on a clamping buckle (31) arranged at a position corresponding to the step, on the instrument simultaneously, and after a test is finished, the instrument releases the locking of the clamping buckle (31) for the tested object (1) by a transmission device, and the tested object (1) is ejected from the instrument in time under the action of the bulge (21) used for rebounding, thus solving the problem that the tested object is forgot to be pulled out or cannot be pulled out in time well, and improving the reliability of the product.