Anastomotic Adhesion Sheet with Pulling Unit for Tissue Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for anastomosis, such as using biodegradable sutures or mechanical joint devices, may not sufficiently reduce the risk of anastomotic leakage due to variations in biological tissue states.
Innovation Solution
A medical device with an adhesion promotion sheet and a pulling unit is used to promote tissue adhesion by interposing the sheet between joint sites and deforming it to cover the outer peripheral surface of biological organs, stabilizing the adhesion and preventing misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a mechanical joint device is used for anastomosis, then the joining force between biological organs is improved, but the risk of anastomotic leakage cannot be sufficiently reduced due to variations in biological tissue states
Solution Approach 1:
The patent introduces an adhesion promotion sheet as an intermediary material between the biological organs. This sheet contains adhesion promotion portions that actively facilitate tissue bonding, serving as a mediator that enhances the reliability of the joint beyond what mechanical joining alone can achieve, while maintaining the strength benefits of mechanical devices.
Solution Approach 2:
The adhesion promotion sheet is constructed as a composite structure combining a base sheet material with integrated adhesion promotion portions. This composite design integrates the mechanical support function with the biological adhesion function, creating a multi-functional device that addresses both joining force and tissue integration requirements.
2Reliability
If an adhesion promotion sheet is interposed between joint sites, then tissue adhesion is promoted, but the sheet may become distorted or misaligned during the procedure
Solution Approach 1:
The patent incorporates a pulling unit with a pulling direction indication that is pre-configured on the adhesion promotion sheet. This preliminary setup guides the operator on how to properly position and align the sheet during insertion, preventing distortion and misalignment before they can occur during the anastomosis procedure.
Solution Approach 2:
The pulling direction indication utilizes visual cues (such as colored markings or patterns) that provide directional guidance. These visual indicators help the operator correctly orient the sheet during insertion, ensuring proper alignment with the joint sites and preventing distortion during the procedure.
3Stability of the object's composition
If the adhesion promotion sheet is deformed to cover the outer peripheral surface, then stable holding is achieved, but the device complexity increases
Solution Approach 1:
The adhesion promotion sheet is designed as a flexible thin film structure that can be easily deformed to conform to the outer peripheral surface of the biological organ. This flexible film approach provides stable holding through simple deformation rather than complex mechanical structures, maintaining ease of operation while achieving the desired stability.
Data Source
AI summary
A medical device is disclosed capable of reducing risk factors of an anastomotic leakage after a surgical operation is performed. The medical device includes an adhesion promotion sheet configured to include an adhesion promotion portion promoting adhesion of biological tissues and a frame portion provided outside the adhesion promotion portion in a plane direction and a pulling unit connected to the adhesion promotion sheet and configured to deform a second region so as to cover at least a portion of an outer peripheral surface of a biological organ to be joined with a pulling operation.