Dynamic Mixing Injection Device for Multi-Component Syringes
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Solution Overview
Problem
Existing multi-component mixing syringes suffer from poor mixing efficiency per unit volume and are inconvenient to use, as they require extending the mixer, leading to increased waste and reduced accuracy in needle positioning, making it difficult to perform mixing and injection operations with one hand.
Innovation Solution
A multi-component mixing injection device with a dynamic mixing mechanism, featuring two side-by-side syringe barrels, a rotating handle, and a transmission shaft with mixing blades, which enables efficient dynamic mixing and allows for one-handed operation by converting rotational power into linear motion for mixing and injection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a static mixing element is used to achieve mixing of multi-components, then mixing can be performed, but the mixing efficiency is poor
Solution Approach 1:
The patent transforms the static mixing element into a dynamic mixing structure with rotating blades. The mixing efficiency is significantly improved by introducing rotational motion to the mixing blades, which are driven by a motor through a transmission mechanism. This dynamic approach allows for more effective mixing action compared to static elements.
Solution Approach 2:
The patent replaces the simple static mechanical mixing structure with a more complex dynamic mechanical system including a motor, transmission shaft, and rotating mixing blades. This substitution enables higher mixing efficiency through controlled rotational motion and blade design.
2Productivity
If the length of the mixer is extended to achieve good mixing effect, then mixing efficiency improves, but the accommodation space increases and waste of multi-component materials increases
Solution Approach 1:
The dynamic rotating mixing blades create more effective mixing action within a compact space, eliminating the need for extended mixer length. The rotational motion and blade design achieve thorough mixing without requiring additional accommodation space, thus reducing material waste.
Solution Approach 2:
The patent changes the mixing mechanism from static to dynamic, altering the fundamental parameter of mixing action. This parameter change enables efficient mixing in a shorter mixer length, reducing both accommodation space and material waste.
3Productivity
If the mixer is extended to achieve good mixing effect, then mixing efficiency improves, but the accuracy of operating a needle position decreases
Solution Approach 1:
The dynamic mixing blades achieve effective mixing in a compact configuration, maintaining short overall device length and preserving needle positioning accuracy. The rotational mixing action compensates for the reduced mixer length.
Solution Approach 2:
By changing from static to dynamic mixing, the patent achieves efficient mixing without extending the mixer length, thereby maintaining the accuracy of needle position operation.
4Ease of operation
If separate mixing and injection operations are performed, then each operation can be optimized, but it becomes difficult to perform both operations with one hand
Solution Approach 1:
The patent combines the mixing and injection operations into a single integrated device and operation sequence. The dynamic mixing process is followed immediately by injection through the same device, allowing both operations to be performed with one hand in a continuous action.
Solution Approach 2:
The device is designed to perform multiple functions (mixing and injection) through a unified structure operated by a single operator. The integrated design enables one-handed operation for both mixing and injection tasks.
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 achieves improved mixing efficiency with reduced waste and enhanced needle positioning accuracy, enabling efficient one-handed operation and compact design, facilitating convenient use in medical applications.
Implementation Method 1
the direction conversion structure is connected to a power input structure through a synchronous belt; the power input structure includes an arc-shaped rack portion
Implementation Method 2
the dynamic mixing structure includes multiple mixing blades, the multiple mixing blades are rotatably installed in the dynamic mixing tube
Implementation Method 3
each of the syringe barrels is internally provided with a plunger, and the handle is configured to drive the plunger to move towards the syringe barrel
Data Source
AI summary
A multi-component mixing injection device is provided. The device includes a mixer, an input end of the mixer is provided with two syringe barrels arranged side by side, an end of each of the syringe barrels is installed in a housing, and a handle is installed in the housing. The handle drives plungers to move towards the syringe barrels. The mixer includes a dynamic mixing tube, and a dynamic mixing structure is configured to mix different components in the dynamic mixing tube. The dynamic mixing structure includes multiple mixing blades, the multiple mixing blades are installed on a power output end of a transmission shaft, a power input end of the transmission shaft is connected to a direction conversion structure, and the direction conversion structure is connected to a power input structure through a synchronous belt. The device effectively improves the mixing efficiency through dynamic mixing.