Flexible Buttock Mapping Guide for Safe Filler Injection
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Solution Overview
Problem
Existing methods for cosmetic, non-surgical buttock lifts using filler injections lack precision, often risking penetration of blood vessels and embolisms due to orthogonal injection techniques over the gluteus maximus, which can be fatal.
Innovation Solution
A flexible guide apparatus with two rectangular strips, one mounted angularly to the other, is used to map the buttocks, allowing for safe and aesthetically pleasing lateral injection sites into the deep subcutaneous fat between the deep and superficial gluteal fasciae, avoiding the gluteus maximus and its blood vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If orthogonal injection technique is used over the gluteus maximus, then the injection procedure is simple, but the risk of penetrating blood vessels and causing embolisms increases
Solution Approach 1:
The guide apparatus is used to pre-mark the buttock surface with reference lines and quadrant divisions before injection. This preliminary mapping identifies safe injection zones and avoids blood vessel areas, allowing the injector to proceed with confidence while maintaining procedural efficiency.
Solution Approach 2:
The buttock injection area is divided into four quadrants by vertical and horizontal reference lines. Each quadrant represents a distinct injection zone with specific entry points, allowing systematic coverage of the treatment area while avoiding overlapping injections near blood vessels.
2Reliability
If lateral injection technique is used to avoid blood vessels, then the safety is improved, but the precision and accuracy of injection site marking becomes more difficult
Solution Approach 1:
The guide apparatus pre-establishes an anatomical reference frame with vertical and horizontal lines based on the patient's body proportions. This preliminary marking system provides precise reference points for determining lateral injection entry points, eliminating the need for complex real-time measurements during the procedure.
Solution Approach 2:
The guide apparatus provides different marking functions for different regions of the buttock. The vertical lines establish medial-lateral boundaries, the horizontal line establishes superior-inferior boundaries, and the quadrant divisions identify specific injection zones. Each region receives customized marking guidance appropriate to its anatomical location.
3Measurement precision
If a flexible guide apparatus with two rectangular strips is used for mapping, then the precision of injection site marking is improved, but the device complexity increases
Solution Approach 1:
The guide apparatus consists of two separate rectangular strips that can be independently positioned and adjusted on the buttock surface. This segmentation allows each strip to serve a specific function (vertical reference and horizontal reference) while maintaining overall simplicity. The strips can be easily manufactured, stored, and disposed of after single use.
Data Source
AI summary
A guide apparatus in the form of two flexible strips marked with scales, arranged perpendicular and slidable with respect to each other is used for anatomical mapping and marking of buttocks, especially for the purpose of defining sites suitable for lateral injection of filler into the buttocks for the purpose of lifting the buttocks as a cosmetic objective.