Bone Cement Mixing Adapter for Reversible Electric Drive Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bone cement mixing systems require significant physical effort for manual mixing, and there is a need for systems that can be used manually or with mechanical assistance, such as electric drives, to facilitate easier preparation of bone cement paste while avoiding air inclusions.
Innovation Solution
An adapter for a mixing system that allows reversible attachment to both a handle and an electric drive device, enabling the mixing rod to be operated mechanically, with a fastening element for secure attachment and a connecting element for power transmission, facilitating both manual and electric mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hand-operated mixing rod is used to mix bone cement components, then the mixing system remains simple and sterile, but considerable physical effort is required by the user
Solution Approach 1:
The adapter serves as an intermediary component that connects the electric drive device to the mixing rod, enabling mechanical assistance without requiring a complete redesign of the mixing system. The adapter includes a connecting element for the electric drive and a fastening element for the mixing rod, acting as a mediator between manual and mechanical mixing modes
Solution Approach 2:
The adapter is designed to be universally applicable to different mixing rod types and electric drive devices. The fastening element can accommodate various mixing rod configurations, and the connecting element can interface with different electric drive interfaces, allowing one adapter to serve multiple functions and configurations
2Ease of operation
If an electric drive device is directly connected to the mixing rod, then mixing effort is reduced, but the connection becomes complex and non-reversible
Solution Approach 1:
The adapter enables dynamic switching between manual and mechanical mixing modes through reversible connections. The fastening element allows the mixing rod to be easily attached and detached, while the connecting element permits the adapter to be reversibly connected to the electric drive device, providing operational flexibility
Solution Approach 2:
The adapter is segmented into distinct functional elements: a connecting element for the electric drive device and a fastening element for the mixing rod. This segmentation allows each element to be optimized for its specific function while maintaining overall reversibility and adaptability of the system
3Productivity
If a permanent mechanical connection is made between the electric drive and mixing system, then mixing efficiency increases, but cost and system complexity increase
Solution Approach 1:
The adapter acts as a cost-effective intermediary solution rather than permanently modifying the electric drive device or mixing system. This intermediary approach maintains mixing efficiency through reliable force transmission while avoiding the high costs associated with custom-integrated mechanical connections
Solution Approach 2:
The adapter is designed as an affordable, potentially disposable component that provides reliable mechanical connection without requiring expensive precision manufacturing. The simple structure of the adapter with its connecting and fastening elements makes it cost-effective to produce and replace if needed
Data Source
Figure 1
Figure 2
Figure 3A~3B'
AI summary
The invention relates to an adapter (100) for a mixing system (200) for providing a bone cement paste from two starting components, comprising a fastening element (110) for reversibly attaching the adapter to a handle (210) of the mixing system, wherein the handle is configured to mix the two starting components in a container (220) of the mixing system by means of a mixing rod (230) of the mixing system and thus provide the bone cement paste, and a connecting element (120) for reversibly connecting the adapter to an electric drive device (400), wherein the adapter is configured to establish a force-transmitting connection between the electric drive device and the handle, so that the mixing rod can be operated mechanically with the electric drive device.The invention further relates to a kit for providing a bone cement paste from two starting components comprising such an adapter and a mixing system, and to a method for providing a bone cement paste from two starting components using such a kit.