Tension-free Titanium Knitted Fabric for Soft Tissue Shaping
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Solution Overview
Problem
Existing metal knitted fabrics for surgical mesh endoprostheses have high elasticity and low plasticity, leading to trauma in thin anatomical structures, deformation, and complications such as pressure ulcers and difficulty in uniform fixation, limiting their use in delicate areas like the eyelids and cornea.
Innovation Solution
Development of tension-free titanium metal knitted fabric with a relief surface and varying diameter, treated using methods like ultrasonic treatment and electrochemical polishing to reduce elasticity and increase plasticity, and coated with a titanium oxide film for improved adhesion and reduced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If native metal knitted fabric is used with high elasticity, then the material can be easily deformed to form wire loops, but it causes tension on body tissues, pressure ulcers, and trauma to thin anatomical structures
Solution Approach 1:
The patent applies parameter changes by treating the titanium threads with ultrasonic treatment and electrochemical polishing to reduce their diameter and eliminate spring properties. This transforms the material from high-elasticity to low-elasticity state, allowing it to be deformed without causing tissue tension or pressure ulcers. The treated threads maintain plasticity for easy deformation while eliminating harmful elastic rebound that causes trauma to thin anatomical structures.
Solution Approach 2:
The patent replaces the mechanical spring properties of the metal threads with a chemically treated surface structure. By applying ultrasonic treatment and electrochemical polishing, the mechanical elasticity is substituted with a chemically modified surface that provides adhesion to tissues without elastic rebound. This substitution eliminates the harmful mechanical tension while maintaining the ability to be deformed into loops for fixation.
2Reliability
If additional fixators like sutures or staples are used to secure the mesh, then fixation reliability is improved, but the device complexity and surgical time increase
Solution Approach 1:
The patent applies self-service by designing the titanium threads to have self-adhesive properties through ultrasonic treatment and electrochemical polishing. The treated threads automatically adhere to the surrounding tissues upon implantation without requiring additional sutures or staples. This self-fixation mechanism eliminates the need for separate fixation devices, reducing surgical complexity and time while maintaining reliable fixation of the mesh endoprosthesis.
3Strength
If the mesh is made with high density wire loops, then structural strength is improved, but the material loses plasticity and becomes difficult to expand in surgical wounds
Solution Approach 1:
The patent applies parameter changes by treating the titanium threads to reduce their diameter and eliminate spring properties, which fundamentally changes the mechanical behavior of the mesh. The treated threads maintain sufficient structural strength for mesh integrity while gaining enhanced plasticity that allows easy expansion and adaptation to surgical wounds. The chemical treatment creates a surface structure that provides both strength and flexibility, resolving the contradiction between structural strength and adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The fabric achieves reduced elasticity, increased plasticity, and enhanced adhesion to tissues, allowing for safer placement in thin anatomical structures, faster healing, and reduced complications, with improved fixation and integration, eliminating the need for additional fixators.
Implementation Method 1
treated using methods like ultrasonic treatment and electrochemical polishing to reduce elasticity and increase plasticity
Implementation Method 2
treated using methods like ultrasonic treatment and electrochemical polishing to reduce elasticity and increase plasticity
Implementation Method 3
coated with a titanium oxide film for improved adhesion and reduced friction
Data Source
AI summary
The invention relates to the fields of medicine and medical technology and is directed toward improving the technical properties of mesh implants used for delicately surgically shaping thin anatomical structures: eyelids, cornea, etc. A tension-free titanium metal warp knit fabric for surgically shaping soft tissues is a mesh fabric made of titanium threads bent to form interconnected loops, wherein the titanium threads have a contoured surface. The technical result is a decrease in the elasticity and an increase in the plasticity of the material, making it possible to incorporate said material into thin anatomical structures without risk of trauma, while improving the formation of connective tissue, reducing wound discharge, shortening healing times, and reducing the rate of complications, thus enabling more rapid recovery of patients.