Anchoring Unit Suturing Device for Even Tissue Tension
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Solution Overview
Problem
Traditional suturing methods are prone to complications such as uneven tension, thread tearing, and needle pricks, requiring multiple surgical staff and potentially leading to post-surgical issues like ischemic damage and infection, especially when dealing with thick tissues like fascia.
Innovation Solution
A system and method using a plurality of anchoring units with tissue-anchoring and thread-coupling elements, where anchoring units are alternately fixed in tissue sections and linked by threads to bring consecutive units into proximity, allowing for continuous suturing with adjustable tensioning and locking mechanisms to distribute load and minimize complications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional continuous suturing with a single thread is used, then the tissue sections can be brought together, but the suture is prone to tearing and uneven tension distribution
Solution Approach 1:
The invention divides the continuous suture into multiple discrete sutures, each comprising its own needle and thread. This segmentation allows each suture to independently bear load, preventing catastrophic failure if one suture tears. The multiple sutures work together to distribute tension evenly across the tissue sections, resolving the contradiction between maintaining suture integrity and preventing thread tearing.
2Ease of operation
If traditional manual suturing with needle and thread is performed, then the tissue can be sutured, but surgeons are exposed to needle pricks and contamination risks
Solution Approach 1:
The invention replaces the traditional manual needle-pushing mechanism with a self-actuating delivery system. The suturing device uses mechanical advantage through levers and springs to automatically drive the needles through tissue sections without requiring the surgeon to manually manipulate sharp needles. This substitution maintains full suturing capability while eliminating the direct exposure to needle pricks and contamination risks.
3Reliability
If multiple single stitches are applied manually to thicken tissue sections, then the tissue can be held together, but the procedure requires multiple surgical staff members
Solution Approach 1:
The invention merges multiple suturing functions into a single integrated device that can deploy multiple sutures simultaneously or in rapid sequence. The device combines needle holders, thread feeders, and tensioning mechanisms into one unit that can be operated by a single surgeon. This consolidation maintains reliable tissue holding capability while reducing the requirement for multiple surgical staff members to manual suturing.
4Speed
If high force is applied to pass the needle through thick fascia tissue, then the needle can penetrate the tissue, but surgeons suffer from needle pricks and tissue damage occurs
Solution Approach 1:
The invention uses preliminary mechanical pre-positioning and alignment mechanisms to ensure the needle is correctly oriented and positioned before penetration. The delivery system pre-loads the needle with controlled force and guides it through the tissue along a predetermined path, achieving rapid penetration without requiring excessive force that would cause needle deflection, tissue damage, or surgeon injury.
Data Source
AI summary
Provided is a system, a device, a cassette for use therein and method for suturing two tissue sections, for example two sections of a tissue, by using a plurality of consecutively-arranged anchoring units.