Variable Fit Lancet With Resilient Engagement Fins
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Solution Overview
Problem
Existing lancets are not universally compatible with lancing devices due to varying receiver dimensions, leading to difficulties for users with reduced visual acuity in selecting the correct size, and resulting in potential adverse health effects from incorrect lancet usage.
Innovation Solution
A lancet design featuring flexing engagement fins that are resiliently deformable, allowing the lancet to securely engage with lancing devices of varying sizes by adjusting its outer dimension to conform to different receiver inner dimensions, ensuring central alignment and secure retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If lancets are designed with fixed rigid dimensions to ensure secure engagement in receivers, then retention strength is improved, but adaptability to different receiver sizes deteriorates
Solution Approach 1:
The lancet body incorporates resilient engagement fins that can dynamically change their outer dimension to conform to different receiver inner dimensions. The fins are resiliently deformable, allowing the lancet to adapt its shape during insertion while maintaining secure engagement through elastic recovery, thus achieving both adaptability and retention strength.
Solution Approach 2:
The engagement fins are designed with variable thickness (first thickness at base greater than second thickness at free edge) to enable controlled deformation. This parameter change allows the fins to flex inward during insertion into receivers of varying sizes while maintaining sufficient structural integrity for secure retention.
2Adaptability or versatility
If lancets are designed with variable dimensions to accommodate different receiver sizes, then adaptability is improved, but manufacturing precision requirements worsen
Solution Approach 1:
The engagement fins are implemented as flexible thin-walled structures that can elastically deform to accommodate different receiver dimensions. The thin-walled design allows the fins to flex inward during insertion while maintaining manufacturing feasibility through standard plastic molding techniques, reducing the need for complex precision controls.
Solution Approach 2:
Rather than requiring precise fixed dimensions, the design uses dynamic resilient structures that self-adjust during insertion. The elastic deformation of the fins naturally accommodates variations in receiver size within a broad range, reducing manufacturing precision requirements while ensuring reliable engagement.
3Adaptability or versatility
If multiple lancet models are produced to fit different lancing devices, then adaptability is improved, but device complexity worsens
Solution Approach 1:
The lancet design achieves universal compatibility with lancing devices having a broad range of receiver dimensions through its resilient engagement fins. A single lancet model can be used across multiple lancing device models, eliminating the need for users to select from multiple specialized lancet types and simplifying inventory management.
4Strength
If lancet body diameter is increased to ensure grip in larger receivers, then retention in large receivers is improved, but compatibility with smaller receivers deteriorates
Solution Approach 1:
The engagement fins are designed with resilient properties that allow them to deform inward during insertion into smaller receivers and then elastic recovery to provide secure grip in larger receivers. This dynamic behavior enables a single lancet design to achieve adequate retention across the full range of receiver sizes without requiring multiple diameter variants.
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 universal compatibility of the lancet reduces the likelihood of incorrect purchases and simplifies the selection process for users, while also reducing the number of lancet models needed for manufacturers and sellers to stock, ensuring broader compatibility and safety.
Implementation Method 1
the lancet body having at least one flexing engagement fin, whereby the at least one flexing engagement fin is resiliently deformable upon insertion into a receiver of a lancing device
Data Source
AI summary
A lancet having a lancet body and a sharp lancing tip extending from the lancet body, the lancet body including at least one flexing engagement fin, which is resiliently deformable upon insertion into a receiver of a lancing device. The outer dimension of the lancet effectively self-adjusts to conform to a wide range of receiver inner dimensions, and as such, the lancet of the present invention enables universal application with a larger range of lancing devices than previously known lancets.