Angled Cogged Rhinoplasty Suture for Stable Nose Tip Support
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Solution Overview
Problem
Conventional lifting sutures for rhinoplasty face issues such as suture protrusion, inflammation, and limited support for the nose tip, leading to tissue damage and reduced treatment effectiveness.
Innovation Solution
A lifting suture design featuring a first and second region with cogs, a connecting region forming a predetermined angle, and varying thicknesses, allowing secure fixation and minimization of tissue irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional lifting suture is inserted into the nose bridge and columella to support the nose shape, then the nose bridge and columella can be supported, but the suture continuously receives tension over time causing it to move inside the nose, irritate the skin, and potentially protrude through the skin
Solution Approach 1:
The lifting suture is divided into multiple distinct regions (first region for nose bridge, second region for columella, and connecting region for nose tip) with different structural characteristics. Each region contains cogs with specific configurations tailored to the mechanical requirements of that anatomical location, allowing the suture to provide targeted support while distributing tension more effectively across different segments.
Solution Approach 2:
Different regions of the lifting suture are designed with locally optimized properties: the first region has cogs configured for nose bridge fixation, the second region has cogs for columella fixation, and the connecting region has increased thickness for nose tip support. This local differentiation allows each segment to perform its specific function optimally while reducing overall tension concentration that leads to skin irritation.
2Reliability
If a conventional lifting suture is used for rhinoplasty, then the nose bridge and columella can be supported, but the nose tip is not supported and limitations exist in terms of effects for the nose tip
Solution Approach 1:
The lifting suture is designed as a multi-functional device that can simultaneously support three different anatomical structures (nose bridge, columella, and nose tip) through its three distinct regions. Each region is optimized for its specific function while being part of an integrated system, allowing a single suture to address multiple rhinoplasty requirements that previously would have required separate sutures or procedures.
Solution Approach 2:
The connecting region is designed with increased thickness compared to the first and second regions, adding a dimensional variation along the longitudinal axis of the suture. This thickness variation provides enhanced structural support specifically at the nose tip location, creating a three-dimensional support system within a linear suture structure that addresses the previously unsupported nose tip area.
3Force
If the lifting suture is inserted to support the nose shape, then lifting effect can be achieved, but the suture may move inside the nose and one end may irritate the skin causing inflammation
Solution Approach 1:
The cogs are pre-formed on the suture in specific configurations before insertion, with each cog positioned and oriented to engage with the underlying tissue at the appropriate anatomical location. The first region's cogs are configured to engage the nose bridge, the second region's cogs to engage the columella, and the connecting region's increased thickness to engage the nose tip, all prepared in advance to provide immediate and distributed fixation upon insertion.
Solution Approach 2:
The cogs act as intermediary structures between the lifting suture and the nasal tissues. These cog formations provide mechanical interlocking with the underlying cartilage and soft tissue at each region, mediating the transfer of lifting forces while preventing direct skin irritation by distributing the mechanical interaction across multiple engagement points rather than a single continuous suture surface.
Data Source
AI summary
Disclosed are a lifting suture for rhinoplasty and a manufacturing method thereof. A manufacturing method of a lifting suture according to one embodiment of the present disclosure may include forming a lifting suture including a first region and a second region, each of which has cogs formed therein, and forming a connecting region by pressing the lifting suture while the first region and the second region are bent so that a first angle is formed therebetween.