Dermal Filler Thread Needle Coupler for Secure Wrinkle Placement
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Solution Overview
Problem
Existing methods lack an effective means to attach dermal filler threads to needles for targeted delivery into wrinkles, making precise placement difficult.
Innovation Solution
A needle with a coupler mechanism at its proximal end for mechanically attaching a dermal filler thread, combined with a trocar at the distal end for insertion, allowing for secure attachment and delivery of the thread into the dermis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thread is attached to a needle for delivering dermal filler, then the thread can be delivered to the wrinkle, but the thread may detach from the needle during delivery
Solution Approach 1:
The needle is divided into distinct functional segments: a proximal coupler portion for thread attachment and a distal trocar portion for tissue penetration. This segmentation allows each portion to be optimized for its specific function while maintaining overall reliability.
Solution Approach 2:
The coupler is pre-formed with engagement features (such as grooves or channels) that are designed to receive and secure the thread before insertion. This preliminary configuration ensures reliable thread-needle attachment is established prior to delivery into the wrinkle.
2Reliability
If a coupler mechanism is added to attach the thread to the needle, then secure attachment is achieved, but the device complexity increases
Solution Approach 1:
The coupler is integrated as a unified component with the needle shaft, combining the attachment function with the structural support function. This merging approach provides secure thread attachment while avoiding the complexity of separate, independent attachment mechanisms.
Solution Approach 2:
The coupler serves multiple functions: it provides structural support for the needle, creates a secure attachment point for the thread, and facilitates smooth insertion through tissue. This multi-functionality reduces the need for additional separate components.
Data Source
AI summary
Provided herewith is a needle for delivering dermal filler thread to a wrinkle in a patient. The needle can also be used to deliver the thread to a patient for the purposes of facial contouring. The needle comprises a coupler for attaching the thread to the needle and also a trocar to ease delivery through the skin.