Lancet Release Mechanism for One-Handed Ejection
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Solution Overview
Problem
Existing lancing devices require two-handed operation, are dangerous, or ineffective in releasing the lancet, posing safety and convenience issues due to complicated mechanisms or inadequate ejection mechanisms.
Innovation Solution
A lancing device with a lancet-release mechanism featuring a release button and a beam that extends into the lancet holder, assisted by a spring, allowing for one-handed, safe, and effective ejection of the lancet assembly from the holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a one-handed lancet-release mechanism is implemented, then ease of operation is improved, but device complexity increases due to internal release mechanism design
Solution Approach 1:
The lancet holder is divided into separate functional components including a receptacle for the lancet assembly and a distinct release mechanism with a beam and button. This segmentation allows the release function to be operated independently with one hand while keeping the overall device structure manageable and reducing internal complexity.
2Reliability
If the lancet ejection force is increased, then reliability of lancet release is improved, but harmful factors increase due to potential skin piercing
Solution Approach 1:
The beam acts as an intermediary component between the button and the lancet assembly. When the button is pressed, the beam transfers and controls the ejection force, ensuring sufficient force to release the lancet while distributing the force in a controlled manner to prevent accidental skin piercing during the ejection process.
Solution Approach 2:
The lancet is pre-loaded into the holder's receptacle in a safe, shielded position before use. The release mechanism is designed to eject the lancet only when the button is actively pressed, ensuring the lancet remains contained and safe during loading and storage, and only becomes active when intentionally released by the user.
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 solution enables safe, one-handed operation of the lancing device, reducing the risk of injury and improving convenience by ensuring reliable lancet ejection without jamming, thus addressing the safety and effectiveness issues of existing designs.
Implementation Method 1
a spring located adjacent to and engaging the beam, the spring being adapted to bias the beam to engage the lancet assembly once it is received by the lancet holder
Data Source
AI summary
A lancing device comprises a lancet holder and a lancet-release mechanism. The lancet holder forms an aperture. The aperture is adapted to receive a lancet assembly therein. The lancet holder is adapted to move the lancet assembly between a resting position, a cocking position, and a puncture position. The lancet-release mechanism includes a release button located adjacent to and external from the lancing device and a beam attached to the release button. The beam extends into the lancing device and the lancet holder. The beam is adapted to engage the lancet assembly. The release button and attached beam are adapted to eject the lancet assembly from the lancet holder.