Bone Cement Mixing Assembly with Movable Plug Cover
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Solution Overview
Problem
Traditional bone cement mixing processes are laborious and inefficient, leading to low recovery rates and waste of high-viscosity bone cement, which is costly and time-consuming, especially when transferring mixed cement to a syringe for surgical use.
Innovation Solution
A bone cement mixing assembly comprising a mixer with a stirring rod and barrel, and a syringe barrel connected by a movable plug cover, allowing for direct transfer of mixed cement from the stirring barrel to the syringe barrel, improving recovery rates and reducing transfer time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If high-viscosity bone cement is mixed manually, then mixing can be performed, but the process is laborious and creates agglomerates that reduce recovery rate
Solution Approach 1:
The patent extracts the problematic manual mixing action and replaces it with a dedicated mixing device featuring a spiral mixing element that removes agglomerates from the mixing chamber, preventing substance loss while easing the mixing operation
Solution Approach 2:
The patent introduces a movable plug cover as an intermediary mechanism that facilitates smooth transfer of mixed bone cement from the mixing chamber to the syringe barrel, preventing agglomerate formation and improving recovery rate
2Loss of substance
If mixed bone cement is collected carefully to improve recovery rate, then less cement is wasted, but the process takes too much time causing solidification
Solution Approach 1:
The patent enables continuous transfer of bone cement from mixing to injection through the movable plug cover mechanism, eliminating interruptions and manual collection steps, thus maintaining high recovery rate while minimizing time loss
Solution Approach 2:
The mixing chamber is designed with a spiral mixing element that pre-prevents agglomerate formation during mixing, and the movable plug cover is positioned to enable immediate transfer, eliminating the need for careful manual collection and reducing time loss
3Device complexity
If traditional mixing and transfer methods are used, then equipment is simple, but the process is inefficient and causes waste of expensive high-viscosity bone cement
Solution Approach 1:
The patent merges the mixing chamber and syringe barrel into a single integrated assembly with a movable plug cover that combines mixing, transfer, and injection preparation functions, improving productivity while maintaining relatively simple device structure
Solution Approach 2:
The mixing assembly is designed as a multi-functional device that performs mixing, prevents agglomerate formation, enables continuous transfer, and prepares for injection all in one integrated system, achieving high efficiency without proportionally increasing 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 assembly enables quick and efficient preparation of high-viscosity bone cement, enhancing recovery rates and simplifying the transfer process, thus reducing waste and increasing operational efficiency.
Implementation Method 1
The movable plug cover has an outer diameter slightly less than or equal to the inner diameter of the stirring barrel and the inner diameter of the syringe barrel. The movable plug cover is movably arranged in the stirring space or the injection space
Data Source
AI summary
The invention provides a bone cement mixing assembly including a mixer, a syringe barrel and a movable plug cover. The mixer includes a stirring rod and a stirring barrel. The stirring rod has holding end, a rod body and a stirring end. The stirring barrel has a barrel cover, a first barrel open, a first barrel body, a first barrel bottom, and a stirring space located in the first barrel body. The syringe barrel has a second barrel open, a second barrel body, a second barrel bottom, and an injection space located in the second barrel body. In this way, the complete-stirred bone cement in the stirring barrel can be directly collected and pushed into the syringe barrel through the movement of the movable plug cover to achieve the effect of completing the preparation of the bone cement quickly and efficiently.