One-Way Lifting Thread With Cam Anchor for Even Tissue Lift
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Solution Overview
Problem
Existing lifting threads for facial rejuvenation often require two-way insertion, leading to visible wounds and uneven lifting effects, and lack sufficient lifting force and duration.
Innovation Solution
A one-way lifting embedded thread with a cam body structure and anchor mechanism that secures the thread to the skin, preventing slippage and enhancing lifting force, combined with a lifting device for precise positioning and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-way lifting embedded threads are used, then the lifting function can be achieved, but visible wounds are formed and facial beauty is affected
Solution Approach 1:
The lifting thread is divided into two distinct ends: a first end with a first cam assembly for insertion and a second end with a second cam assembly for withdrawal. This segmentation allows the thread to be inserted through one pathway and withdrawn through another, enabling the needle puncture to be located away from visible facial areas while maintaining lifting functionality.
Solution Approach 2:
The invention transitions from traditional two-way insertion/extraction through the same puncture to a three-dimensional approach where insertion and withdrawal occur through different spatial pathways. The first cam assembly enters through the needle while the second cam assembly exits through a different route, effectively moving the problem from a one-dimensional puncture to a multi-dimensional spatial arrangement.
2Reliability
If traditional lifting threads are used, then lifting is achieved, but lifting force is insufficient and duration is short
Solution Approach 1:
The cam assemblies are designed with specific geometric parameters including tapered shapes with varying diameters along their lengths. The first cam assembly has a first diameter at its distal end and a second diameter at its proximal end, creating a tapered configuration that optimizes tissue engagement. This parameter optimization enhances both the magnitude and duration of lifting force.
Solution Approach 2:
The lifting thread incorporates biodegradable and absorbable materials with good biocompatibility that degrade over time while maintaining lifting function. These materials stimulate collagen regeneration and form new supporting ligaments, providing extended lifting duration through progressive tissue integration and regeneration.
3Reliability
If symmetric two-way lifting threads are inserted, then lifting function is achieved, but insertion complexity increases and operation difficulty rises
Solution Approach 1:
Instead of inserting both ends of the thread through the same puncture and then pulling both ends out symmetrically, the invention inverts the traditional approach by having the first cam assembly inserted through the needle while the second cam assembly is withdrawn through a different pathway. This inversion simplifies the insertion operation by eliminating the need for complex symmetric manipulation.
Data Source
Figure 1~2
Figure 3~4
AI summary
Provided are a one-way lifting embedded catgut (1) and a lifting device. The one-way lifting embedded thread (1) includes a pulling thread (11) and at least one cam body (12) sleeved on the pulling thread (11). Two ends of the pulling thread (11) are a lifting end and a free end. The free end is provided with an anchor structure for securing the pulling thread (11). Two sides of the cam body (12) are a large end face and a small end face. The large end face of the cam body (12) faces the free end of the pulling thread (11). As for the one-way lifting embedded thread (1), the arrangement of the anchor structure secures the one-way lifting embedded thread (1) to the skin tissue temporarily and prevents the lifting embedded thread (1) from completely slipping into the skin tissue. Moreover, the arrangement in which a cam body position adjusting member (22) or a necking structure is disposed at an open end of a tube-shaped conveyor portion (2) enables the lifting device to readjust the potions of the at least one cam body (12) in the process of withdrawing the needle, guaranteeing no serious offset in the relative positions of the at least one cam body (12) when the at least one cam body (12) enters the skin tissue.