Endoscopic Organ Wall Fixing Tool With Cord-Like Clamping Mechanism
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Solution Overview
Problem
Current methods for treating obstructive jaundice, such as PTBD and ERBD, require frequent stent tube replacement due to clogging, and existing surgical techniques for forming a stoma between the duodenum and choledochus are cumbersome and require foreign objects for clamping, which need to be removed post-treatment.
Innovation Solution
A living-wall fixing tool using endoscopic detention devices with shaft-shaped fixing members, cord-like members, and elastic stoppers to clamp organ walls, allowing for easy insertion and removal without the need for cutting or complex foreign object retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stent tubes are used to treat obstructive jaundice, then the bile duct can be opened and bile flow enabled, but the stent tubes must be frequently replaced due to clogging
Solution Approach 1:
The invention extracts the clamping function from the stent tube system and implements it through a separate fixing tool that clamps the organ walls together. This allows the stent tube to be removed after the clamping function is fulfilled, eliminating the need for frequent replacements while maintaining bile duct patency during the healing period.
Solution Approach 2:
The fixing tool performs preliminary clamping of the organ walls before stent tube removal. By establishing the clamped state in advance, the bile duct can heal properly without requiring the stent tube to remain in place indefinitely, thus reducing replacement frequency.
2Ease of manufacture
If traditional surgical techniques are used to form a stoma between duodenum and choledochus, then connection can be achieved, but the procedure is cumbersome and requires foreign objects for clamping that need to be removed post-treatment
Solution Approach 1:
The invention merges the clamping function and the fixing function into a single integrated tool. The fixing tool combines the shaft-shaped fixing members, cord-like members, and elastic stoppers into one unified device that can be inserted through the endoscope channel, eliminating the need for separate clamping devices and simplifying the surgical procedure.
Solution Approach 2:
The fixing tool serves multiple functions: it clamps the organ walls together, provides a pathway for the stent tube, and can be removed after the stoma is formed. This multi-functionality reduces the number of separate devices needed and simplifies the overall surgical process.
3Ease of operation
If foreign objects are used for clamping organ walls, then the walls can be held together for stoma formation, but the foreign objects must be removed from the patient after treatment
Solution Approach 1:
The fixing tool is designed to be discarded after use. The shaft-shaped fixing members and cord-like members are intended to be removed through the endoscope channel after the stoma formation is complete, eliminating the need for complex retrieval procedures and reducing the harmful effects of retained foreign objects.
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 clamping and easy removal of the tool from the patient, reducing the need for frequent stent replacements and simplifying the surgical process by allowing the tool to be pulled out without cutting, thus improving procedural efficiency and patient recovery.
Implementation Method 1
an elastic stopper which is sildably mounted on the first cord-like member and which is connected to the first cord-like member when the first cord-like member is pulled, causing the first and second fixing member to clamp the first and second living walls
Data Source
AI summary
A living-wall fixing tool for use with endoscopes, including first and second fixing members, first and second cord like members, an elastic stopper, and a slackening means. The first fixing member is to be inserted into a second organ through a hole formed through first and second organs. The second fixing member is to be detained in the first organ. The stopper is slidably mounted on the first cord-like member. The slackening means slackens the first cord-like member. When the slackening means is operated, the second cord-like member is pulled, whereby the first fixing member is pulled into the first organ through the hole.