Bone Cement Syringe Filling for Time-Offset Mixing
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Solution Overview
Problem
Existing bone cement mixing systems face challenges with limited processing time, inconsistent rheological properties, and increased time pressure due to simultaneous curing of multiple syringes, restricting surgeon choice and complicating surgeries.
Innovation Solution
An apparatus and system for providing bone cement dough from two starting components, allowing separate and staggered mixing in syringes using a tank for the liquid component and compartments for the powder component, ensuring each syringe can be used within its processing time without transferring the dough.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single package of bone cement dough is provided and divided into multiple syringes, then the quantity of bone cement dough is sufficient for multiple syringes, but the processing time starts simultaneously for all syringes causing time pressure and inconsistent rheological properties
Solution Approach 1:
The invention divides the single package of bone cement dough into multiple separate syringes, each containing a portion of the dough. This segmentation allows each syringe to have its own independent processing time window, eliminating the simultaneous curing constraint. The surgeon can use syringes at different times without the entire batch curing at once, thus resolving the time pressure issue while maintaining sufficient quantity for multiple syringes.
Solution Approach 2:
The bone cement dough is prepared and divided into multiple syringes in advance before the surgery begins. This preliminary action allows the surgeon to have multiple ready-to-use syringes with consistent rheological properties at the start of the procedure, while each syringe's processing time is independently managed during surgery, avoiding the simultaneous curing problem.
2Quantity of substance
If a single package of bone cement dough is provided and divided into multiple syringes, then the quantity of bone cement dough is sufficient for multiple syringes, but the rheological properties differ across syringes used at different times
Solution Approach 1:
By segmenting the bone cement dough into separate syringes, each syringe maintains its own consistent rheological properties throughout its usage. The segmentation prevents the viscosity changes that would occur if a large batch were used across multiple syringes over time, as each syringe contains a controlled portion with uniform properties.
Solution Approach 2:
Each syringe is designed to contain bone cement dough with specific local quality characteristics (rheological properties) optimized for its intended use. This ensures that regardless of when a syringe is used during surgery, the local quality parameters remain consistent and predictable, improving surgical outcomes.
3Productivity
If multiple syringes are filled from a single package, then commercial efficiency is improved, but the surgeon's choice of bone cement dough types is restricted
Solution Approach 1:
The system segments the bone cement dough supply into multiple separate syringes that can be independently selected and used. This allows the surgeon to choose different types of bone cement dough for different syringes based on surgical requirements, while still maintaining commercial efficiency by using multiple syringes from a single package when appropriate.
Solution Approach 2:
The system provides dynamic flexibility by allowing the surgeon to adaptively select which syringes to use and when, based on real-time surgical needs. This dynamic approach enables both commercial efficiency (using multiple syringes from one package) and surgical versatility (choosing appropriate dough types for specific procedures).
Data Source
AI summary
An apparatus for providing a liquid component as a first starting component of a bone cement dough from two starting components, comprising a receptacle in which a tank containing the liquid component can be stored, an opening means for opening the tank, a reservoir, fluidically connected to the receptacle, for receiving the liquid component from the tank, at least one port for fluidically connecting the apparatus to a syringe in which a powder component can be stored as a second starting component of the bone cement dough, and at least one conducting means which fluidically connects the reservoir and the at least one port to one another.