Triangular Multiple-Cannula Injection Array for Even Skin Distribution
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Solution Overview
Problem
Existing injection devices fail to provide even distribution of substances in the skin and result in waste due to unpredictable dosing and difficulty in maintaining consistent injection depth and distance between injections.
Innovation Solution
An injection cannula array device with a distribution chamber and multiple cannulas arranged in a triangular pattern, featuring a skirt for marking injection sites and a piston mechanism for uniform fluid delivery, ensuring consistent depth and distance between injections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional syringe and cannula equipment is used for cosmetic treatment, then the practitioner can administer substances to the skin, but the treatment becomes laboursome and demands great precision, concentration and patience to achieve even distribution and consistent injection depth
Solution Approach 1:
The injection device is segmented into multiple cannulas arranged in a specific geometric pattern, allowing simultaneous delivery of substance to multiple skin locations. This segmentation enables even distribution without requiring the practitioner to manually control each injection's depth and spacing, reducing operational complexity while maintaining precision.
Solution Approach 2:
The device introduces an intermediary structure (the multi-cannula array with standardized geometry) between the practitioner's hand and the skin surface. This intermediary enforces consistent injection parameters through its fixed structural design, eliminating the need for the practitioner to manually maintain precision during operation.
2Productivity
If multiple injections are given in one treatment to achieve even distribution, then cosmetic enhancement results can be obtained, but the treatment becomes laboursome and time-consuming
Solution Approach 1:
Multiple injection functions are merged into a single device operation. The multi-cannula array delivers substance to multiple skin locations simultaneously through one application, combining what would otherwise require multiple separate injection actions into a single efficient treatment step.
Solution Approach 2:
The device enables continuous substance delivery across multiple skin locations without interruption. By having multiple cannulas active simultaneously, the treatment maintains continuous useful action rather than requiring sequential injections, thereby reducing total treatment time while maintaining therapeutic effectiveness.
3Manufacturing precision
If conventional injection methods are used without standardized spacing, then the practitioner has flexibility in injection placement, but even distribution and consistent distance between injections cannot be guaranteed
Solution Approach 1:
The device employs an asymmetric geometric pattern for cannula arrangement that provides standardized spacing while maintaining adaptability. The specific asymmetric geometry ensures uniform distance between adjacent injections while the overall pattern can be adapted to different treatment areas and requirements.
Solution Approach 2:
The device incorporates adjustable parameters such as cannula spacing, cannula length, and pattern geometry that can be changed to adapt to different treatment requirements. These parameter changes allow the device to maintain standardized uniform spacing while providing versatility for various injection scenarios.
Data Source
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AI summary
The present invention concerns an injection device for delivering a substance to the skin of a subject. The injection device is suitable for precise and even distribution of the substance to the skin and minimizing waste of injectable substance. The injection device comprises multiple cannulas, is connectable to standard syringes and particularly useful in dermatological treatments.