Test Sensor Cartridge Ejection Mechanism
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Solution Overview
Problem
Existing test sensor cartridges require significant sliding movement to dispense test sensors, making it difficult for users with small hands, such as children, to eject the sensors effectively.
Innovation Solution
A test sensor ejection mechanism utilizing a stationary and moveable gear rack system, where lateral movement of a gear generates rotational movement, allowing the moveable gear rack to eject the sensor with reduced sliding distance, incorporating a gear, gear core piece, and slider to facilitate easy ejection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional slider mechanism is used to eject test sensors, then the sensor can be dispensed from the cartridge, but the sliding distance required is equal to the distance the sensor must move, making it difficult for users with small hands to operate
Solution Approach 1:
The patent introduces a gear mechanism that converts linear slider movement into rotational gear movement, and then back into linear gear rack movement. This multi-dimensional transformation allows the slider to move a short distance while the gear rack moves a longer distance, effectively solving the problem of insufficient sliding distance for users with small hands.
Solution Approach 2:
The gear acts as an intermediary between the slider and the gear rack. The slider moves the gear laterally, the gear rotates, and the rotating gear drives the gear rack to move the sensor. This intermediary mechanism amplifies the slider's movement, allowing a short slider displacement to produce a long gear rack displacement sufficient for sensor ejection.
2Productivity
If the slider is moved a distance equal to the sensor ejection distance, then the sensor can be fully ejected, but the mechanism requires excessive sliding movement that is difficult for some users to perform
Solution Approach 1:
By introducing rotational motion through the gear as an intermediate dimension between the linear slider movement and the linear gear rack movement, the system allows a small linear displacement of the slider to be transformed into a large linear displacement of the gear rack, achieving efficient sensor ejection with minimal user effort.
Solution Approach 2:
The patent changes the movement parameters by converting linear displacement into rotational displacement and back into linear displacement with amplified magnitude. The gear ratio and mechanical arrangement transform the slider's small movement parameter into the gear rack's large movement parameter, enabling both high productivity and ease of operation.
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 mechanism reduces the distance required for sensor ejection, making it easier for users to dispense test sensors from the cartridge, improving usability, especially for those with smaller hands.
Implementation Method 1
The gear is positioned between and contacts the stationary gear rack and the moveable gear rack. The lateral movement of the gear in a first direction generates rotational movement by the gear. Both the lateral and rotational movement move the moveable gear rack laterally in the first direction.
Implementation Method 2
a stationary gear rack, a moveable gear rack, and a gear. The stationary gear rack is affixed to a surface. The moveable gear rack is situated generally parallel to the stationary gear rack and is adapted to engage a test sensor.
Data Source
AI summary
This invention relates to a test sensor cartridge assembly that dispenses test sensors individually while shortening the distance of the lateral movement required to eject the sensor. A stationary gear rack is affixed to a surface with a moveable gear rack positioned parallel to the stationary gear rack. The moveable gear rack is adapted to engage the test sensor. A gear is positioned between and contacts the stationary gear rack and the moveable gear rack. The lateral movement of the gear in a first direction generates rotational movement by the gear. Both the lateral and rotational movement move the moveable gear rack laterally in the first direction. The lateral movement of the gear rack in the first direction ejects a test sensor from a test sensor cartridge.