Elastic Thread Fixing Member for Endoscopic Suture Knotless Securing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Suturing procedures using a suture thread are challenging, particularly forming knots, which are difficult to achieve with conventional treatment tools inserted through a flexible endoscope, requiring high-level surgical skills.
Innovation Solution
A suture body comprising a suture thread with a needle and a thread fixing member that includes a rod-shaped protruding portion and an elastic member, allowing the thread to be elastically deformed to secure the thread between the protruding portion and the elastic member, providing a stable fixation without the need for complex knot formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional treatment tool is used to perform suturing through a flexible endoscope, then the procedure can be performed minimally invasively, but the difficulty of forming knots increases significantly
Solution Approach 1:
The invention extracts the knot formation function from the treatment tool and relocates it to a dedicated thread fixing member. The thread fixing member includes a rod-shaped protruding portion and an elastic member that work together to secure the suture thread without requiring complex knotting maneuvers through the endoscope channel.
Solution Approach 2:
The elastic member acts as an intermediary element between the suture thread and the thread fixing member. It provides elastic deformation to allow the thread to be captured and fixed securely, simplifying the overall suturing process while maintaining reliable thread fixation.
2Ease of operation
If a thread fixing member with elastic member is used, then thread fixation is simplified, but the device structure becomes more complex
Solution Approach 1:
The invention merges the thread fixing member and elastic member into a single integrated component. The rod-shaped protruding portion and elastic member are combined in one structure that can be easily manipulated through the endoscope channel, providing simplified thread fixation while minimizing the number of separate parts.
Solution Approach 2:
The elastic member utilizes elastic deformation as a key parameter to enable thread fixation. By changing the physical state of the elastic member from relaxed to deformed during thread passage, and back to relaxed for fixation, the system achieves secure thread holding without complex mechanical structures.
3Reliability
If the protruding portion contacts multiple surfaces of the elastic member, then fixation reliability improves, but manufacturing precision requirements increase
Solution Approach 1:
The invention applies local quality by having the rod-shaped protruding portion contact specific localized surfaces of the elastic member rather than requiring precise alignment across the entire structure. The elastic member's material properties and localized contact areas provide reliable fixation while being tolerant to manufacturing variations.
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
Facilitates easy suturing by allowing the suture thread to be fixed with a simple operation, reducing the need for high-level surgical techniques and enhancing versatility, with adjustable fixation force suitable for various tissue types.
Implementation Method 1
the suture thread can enter between the protruding portion and the elastic member by elastically deforming the elastic member
Data Source
AI summary
A suture body includes: a suture thread having a first end and a second end and fixed to a living tissue; a suture needle connected to the first end; and a thread fixing member connected to the second end. The thread fixing member includes: a rod-shaped protruding portion; and an elastic member having an outer circumferential surface and arranged so that the thread fixing member is in contact with the outer circumferential surface at a predetermined contact pressure. The suture body is configured so that the suture thread can enter between the protruding portion and the elastic member by elastically deforming the elastic member. The suture body further includes a base body to which the protruding portion and the elastic member are fixed. The protruding portion and the elastic member are arranged in an area surrounded by an outer diameter of the base body.