Injection Pen Add-On With Flexible Arm for Pain Distraction
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Solution Overview
Problem
Medicament delivery devices such as pen injectors and autoinjectors cause pain at the injection site, necessitating further alleviation of this discomfort.
Innovation Solution
A device comprising an attachment portion, a flexible arm with protrusions, and a plurality of protrusions that distract from the injection pain by applying increasing pressure and sensation around the injection site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If medicament delivery devices are used to deliver drugs, then drug delivery function is achieved, but injection pain and discomfort occur at the injection site
Solution Approach 1:
The flexible arm with protrusions is positioned against the skin before injection and remains in place during the injection process. The protrusions apply continuous pressure and stimulation to the skin surrounding the injection site throughout the drug delivery, distracting from the injection pain rather than being applied after the fact
Solution Approach 2:
The flexible arm acts as an intermediary element between the injection device and the patient's skin. It provides mechanical stimulation through its protrusions that serves as a distracting sensation, mediating the patient's perception of the injection pain by introducing a competing tactile stimulus
2Object-affected harmful factors
If a flexible arm with protrusions is added to distract from injection pain, then subjective pain perception is reduced, but device complexity increases
Solution Approach 1:
The flexible arm is divided into multiple segments or sections along its length, with protrusions distributed at different positions and orientations. This segmentation allows the arm to flex and conform to the skin surface while maintaining multiple points of contact for effective distraction, breaking down the complex function into simpler geometric elements
Solution Approach 2:
The flexible arm is constructed as a thin, compliant structure that can bend and adapt to the contours of the patient's skin. This flexibility allows the arm to maintain effective contact with the skin surface during injection without requiring complex adjustment mechanisms, simplifying the overall device structure while maintaining functionality
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
Reduces subjective pain and discomfort during injections by providing a sensation that diverts attention from the injection site, allowing for multiple uses.
Implementation Method 1
a flexible arm extending from a first end attached to the attachment portion to a second end distal from the attachment portion, and a plurality of protrusions attached to the flexible arm... providing an increasing pressure applied by the device around the injection site
Data Source
AI summary
The disclosure concerns a device for alleviating injection pain, the device can have an attachment portion for attachment to a medicament delivery device, a flexible arm extending from a first end attached to the attachment portion to a second end distal from the attachment portion, and a plurality of protrusions attached to the flexible arm, wherein the device is a medicament delivery device component or a medicament delivery device add-on. A medicament delivery device comprising such a device and corresponding methods are also described.