Deformable Housing for Bone Cement Ampoule Dispensing
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Solution Overview
Problem
Current devices for dispensing liquid starting components of bone cement paste from glass ampoules are cumbersome, often requiring additional tools and risking user injury due to the need for direct contact with the ampoule, and do not efficiently prevent air inclusions or contamination during the mixing process.
Innovation Solution
A device with a deformable housing region that can be pressed against the glass ampoule to open it fluid-conductively, allowing the liquid to flow out without direct user contact, featuring a filter to prevent contamination and a conveying mechanism for efficient dispensing, enabling simultaneous or sequential opening of multiple ampoules with minimal effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional glass ampoules are used for storing liquid starting component, then sterilization is simplified, but direct contact with ampoule during opening risks user injury and contamination
Solution Approach 1:
The device introduces an intermediary mechanism (deformable housing region acting as a pressure piece) that indirectly opens the ampoule by pressing against it through controlled deformation, eliminating the need for direct user contact with the ampoule head and preventing both injury and contamination while maintaining the sealed sterile environment
2Object-affected harmful factors
If additional tools are used to open ampoules, then user safety is improved, but device complexity increases
Solution Approach 1:
The device merges the ampoule opening function directly into the housing structure by making a region of the housing deformable, combining the protective housing with the opening mechanism in a single integrated component, thereby improving safety without adding separate tools or increasing overall device complexity
Solution Approach 2:
The deformable housing region serves dual purposes: it protects the ampoule during storage and automatically opens it when pressed, making the housing itself self-sufficient for both protection and opening functions without requiring additional dedicated opening tools
3Device complexity
If ampoule opening requires manual manipulation, then device simplicity is maintained, but opening time and effort increase
Solution Approach 1:
The housing transitions from a rigid protective structure to a dynamically deformable structure during operation, allowing rapid ampoule opening through controlled deformation of the housing region, thereby reducing opening time and effort while maintaining structural simplicity
4Object-affected harmful factors
If filter is added to prevent contamination, then product purity is improved, but device complexity increases
Solution Approach 1:
The filter function is extracted as a separate, dedicated component within the device, allowing it to be optimally positioned in the fluid path to effectively prevent contamination of the liquid starting component while maintaining clear functional separation and manageable device complexity
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 device simplifies the opening and dispensing of bone cement paste components, reducing the risk of injury and contamination while ensuring efficient and sterile delivery of the liquid starting component for mixing, thereby improving the reliability and safety of the bone cement paste preparation process.
Implementation Method 1
a deformable region (140) which is designed and arranged to be displaceable by pressure against the glass ampoule (200) received in the holder (120)
Data Source
AI summary
Device for dispensing a liquid starting component of a bone cement paste from a glass ampoule. comprising a housing, a holder arranged in the housing for receiving a glass ampoule, and an outlet for dispensing the liquid starting component from the housing.