Lancing Device Priming Knob Mechanism for Arthritis Users
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Solution Overview
Problem
Current lancing devices are painful and inconvenient for users with physical impairments, such as arthritis, due to the requirement for manual priming, leading to inadequate wound size and frequent repeat lancing, which discourages regular blood sampling.
Innovation Solution
A user-friendly lancing device with a priming knob that allows rotation, translation, or both, to prime the device, converting rotational movement into translational movement of the lancet carrier, making it easier for users to store energy and penetrate the skin without manual handle pulling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring loaded lancet driver with manual priming is used, then the lancet can be propelled to puncture the skin, but users with physical impairments cannot adequately manipulate the priming means
Solution Approach 1:
The patent replaces the traditional manual mechanical priming system with an automated or assisted priming mechanism. The priming means is designed to automatically advance the lancet carrier along the strike path without requiring manual manipulation, thereby substituting the complex manual mechanical operation with a simpler automated system that reliably primes the device for users with physical impairments.
2Use of energy by moving object
If manual priming is required, then the device can store energy in the lancet driver, but improper priming results in inadequate wound size
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor the priming process and provide information to the user about whether proper priming has been achieved. This feedback system ensures that the lancet carrier is correctly positioned and that adequate energy is stored in the lancet driver, preventing improper priming that would result in inadequate wound size. The feedback may include visual indicators or tactile feedback confirming proper priming status.
3Productivity
If repeat lancing is required due to inadequate wound size, then blood sampling can be attempted again, but more pain and multiple wounds are caused
Solution Approach 1:
The patent implements preliminary action by ensuring that the priming process is completed correctly before the lancing operation begins. The device includes features that verify proper priming and lancet positioning prior to activation, preventing inadequate wound formation that would require repeat lancing. This preliminary verification step eliminates the need for repeated painful attempts, allowing users to perform blood sampling at the recommended frequency without excessive pain or tissue damage.
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 improved lancing device reduces pain and inconvenience by allowing easier priming, ensuring proper wound size and frequency of blood sampling, enhancing user accessibility for monitoring physiological functions.
Implementation Method 1
rotation, translation, or both rotation and translation of a priming knob allows a user to prime the device... converting rotational movement into translational movement of the lancet carrier
Data Source
AI summary
A lancing device is used with a lancet for lancing body tissue to result in a wound for bleeding. An improved lancing device has a priming knob having a slanted priming notch rotatably connected to the lancing device about an axis of rotation generally parallel to a central axis of the lancing device and a strike path of a lancet carrier. Rotation, translation, or both rotation and translation of the priming knob allows a user to prime the lancing device.