Submucosal Dissection Balloon With Scalpel Insertion Path
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Solution Overview
Problem
Conventional endoscopic submucosal dissection methods face challenges in efficiently dissecting the submucosal layer of the digestive tract due to the presence of blood vessels and require precise control of high-frequency energy to avoid heat damage, making the process complex and time-consuming.
Innovation Solution
A submucosal layer dissection system that includes a dissection balloon with a fluid supply for expansion, a high-frequency scalpel insertion path, and a submucosal injection needle, allowing for controlled dissection and hemostasis within the submucosal layer, reducing the need for frequent instrument changes and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high-frequency scalpel is used for incision and dissection, then the affected area can be resected, but frequent changes in output setting are required when near blood vessels, increasing operation complexity
Solution Approach 1:
The patent extracts the high-frequency scalpel function from the dissection instrument body, allowing it to be inserted and removed through a dedicated insertion path. This separation enables the balloon to perform dissection independently while the scalpel is only used when needed for incision, reducing the need for frequent output setting changes and simplifying operation.
Solution Approach 2:
The dissection instrument integrates multiple functions: the balloon can perform mechanical dissection, the insertion path accommodates the high-frequency scalpel for incision, and the system provides both dissection and hemostasis capabilities. This multi-functionality reduces the need for multiple separate instruments and frequent setting adjustments.
2Productivity
If high-frequency energy is used for incision, then cutting is achieved, but heat damage to the incised area occurs, requiring precise control of force, angle, and speed
Solution Approach 1:
The patent introduces an intermediary balloon that inflates within the submucosal layer to perform mechanical dissection, separating the primary dissection function from the high-frequency scalpel. This reduces reliance on high-frequency energy and minimizes heat damage, while the scalpel is used only for initial incision and minor adjustments.
Solution Approach 2:
The patent replaces the mechanical action of pressing and moving the high-frequency scalpel with pneumatic inflation of the balloon. The balloon's expansion provides mechanical dissection force without generating heat, eliminating the need for precise control of force, angle, and speed associated with scalpel operation.
3Productivity
If conventional dissection methods are used, then the submucosal layer can be dissected, but numerous blood vessels require constant monitoring and output adjustment, increasing procedure time
Solution Approach 1:
The patent extracts the hemostasis function from the high-frequency scalpel operation, allowing the balloon to perform dissection independently. The high-frequency scalpel is only activated when actual incision or hemostasis is needed, reducing the frequency of output setting changes and minimizing procedure time spent on monitoring blood vessels.
Solution Approach 2:
The integrated instrument provides both dissection and hemostasis functions through the same balloon structure. The balloon can switch between mechanical dissection and applying pressure for hemostasis without requiring instrument changes or output setting adjustments, streamlining the procedure and reducing overall time.
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
Enables efficient and precise dissection of the submucosal layer with reduced bleeding and heat damage, facilitating a wider range of dissection and shorter procedure times by using a balloon to expand the submucosal layer and a high-frequency scalpel for incision, while also providing hemostasis and irrigation.
Implementation Method 1
an expanding section provided on the distal end side of the instrument body that expands in the case of having received a supply of a fluid through the line
Implementation Method 2
a high-frequency scalpel such as a high-frequency scalpel followed by dissection and resection of the submucosal layer
Data Source
AI summary
A submucosal layer dissection instrument of the present invention includes an instrument body that is inserted into a submucosal layer, a line formed between the proximal end side and the distal end side of the instrument body; and an expanding section provided on the distal end side of the instrument body that expands in the case of having received a supply of fluid through the line.