Injection Dummy Spout Design for Spill-Free Emptying
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Solution Overview
Problem
Existing injection training dummies are messy and inefficient when emptying liquid, requiring users to turn them over and often necessitate absorbing materials to prevent spills, and their designs can be overly complex for practicing different types of injections.
Innovation Solution
An injection dummy with a bowl-shaped body and a lid made of resilient material that seals directly against the body, allowing for easy liquid containment and removal without turning, featuring a spout for spill-free emptying and ergonomic design for secure handling and alignment indicators for correct lid positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the injection dummy is designed with a detachable closure member that requires turning over to empty, then liquid can be contained in the chamber, but the emptying process becomes messy and liquid spills easily
Solution Approach 1:
The lid is designed with a spout that inverts the traditional emptying approach - instead of turning the entire container over and removing the lid separately, the spout allows liquid to be poured out directly while the lid remains in place, reversing the sequence of operations to achieve cleaner emptying
2Object-affected harmful factors
If absorbing material such as cotton is placed in the chamber to prevent spills, then liquid spills are reduced, but the device complexity increases and additional materials are required
Solution Approach 1:
The spout function is extracted as a separate structural element from the lid body, allowing the lid to perform dual functions: sealing the chamber when closed and guiding liquid flow during emptying. This extraction eliminates the need for absorbing materials while maintaining spill prevention
3Adaptability or versatility
If the lid is made from resilient material to allow needle penetration, then injection practice is enabled, but the sealing contact with the body becomes challenging
Solution Approach 1:
The lid is constructed from resilient material that functions as a flexible shell, allowing it to deform elastically when penetrated by a needle while maintaining its overall structural integrity and liquid sealing capability through elastic recovery
4Ease of manufacture
If the bowl has sharp corners for easy manufacturing, then production is simplified, but cleaning of remaining liquid becomes difficult
Solution Approach 1:
The bowl is designed with completely curved surfaces and rounded transitions instead of sharp corners, creating a smooth, continuous geometry that prevents liquid accumulation in corners while remaining manufacturable through standard molding processes
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 design ensures a clean, spill-free, and uncomplicated process for injecting and emptying liquids, enhancing user safety and simplicity while allowing for effective practice of injections without the need for additional absorbing materials.
Implementation Method 1
the lid comprises a resilient material adapted to be penetrated by a needle
Implementation Method 2
The lid is adapted to be in liquid sealing contact with the body by the resilient material abutting against the side surfaces of the bowl
Data Source
AI summary
Herein an injection dummy (2) disclosed. The injection dummy comprising a body (4) and a lid (6), wherein the body (4) forms a bowl (8) for receiving and holding a liquid, the bowl (8) comprising side surfaces (10) and a bottom surface (12), and wherein the lid (6) comprises a resilient material adapted to be penetrated by a needle. The lid (6) is adapted to be in liquid sealing contact with the body (4) by the resilient material abutting against the side surfaces (10) of the bowl (8).