Balloon Support Section for Controlled Pressing Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing balloon treatments for stenosed or occluded sites within lumens, such as blood vessels and urethras, face challenges in accurately controlling the pressing force against the inner wall, leading to complex device configurations and cumbersome manual skills.
Innovation Solution
A balloon design featuring a dilating/deflating section and a support section that deflate in response to pressure changes, allowing the balloon to be easily pressed against the inner wall by maintaining a dilated state under atmospheric pressure without pressurization, and an intraluminal treatment method involving negative pressure and pressure increase to facilitate insertion and expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the balloon is connected to a pressure sensor to monitor pressure, then the pressing force control is improved, but the device configuration becomes complicated
Solution Approach 1:
The balloon system uses the support section to automatically maintain the dilated state through its structural design, eliminating the need for continuous pressure monitoring and control systems. The support section self-regulates the balloon's expansion state.
Solution Approach 2:
The pressure sensor and active pressure control system are removed from the device. Instead of using electronic sensors to monitor and control pressure, the invention relies on the passive mechanical support section to maintain the desired pressing force.
2Force
If the balloon is pressurized to maintain a dilated state, then the pressing force is improved, but the ease of operation worsens due to cumbersome manual skills
Solution Approach 1:
The support section automatically maintains the balloon's dilated state through its elastic properties and structural design, eliminating the need for manual pressure regulation skills. The system self-regulates without requiring operator intervention.
Solution Approach 2:
The support section is pre-configured with specific elastic properties and dimensions to automatically provide the necessary pressing force upon insertion. The structural design predetermines the force application, removing the need for real-time manual adjustment.
3Ease of operation
If the balloon is inserted while deflated, then the insertion ease is improved, but the ability to press against the inner wall with proper force worsens
Solution Approach 1:
The balloon is divided into two functional sections: the dilating/deflating section that can be collapsed for insertion, and the support section that provides structural integrity and pressing force. This segmentation allows the balloon to be inserted in a compact state while still maintaining proper force application capability.
Solution Approach 2:
The support section is nested within the dilating/deflating section during insertion. The support section remains compact inside the deflated outer section, allowing easy insertion, then expands to provide the necessary pressing force against the inner wall.
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 the balloon to be easily and properly pressed against the inner wall with a controlled force, reducing wrinkles and maintaining a desired outer diameter, thus simplifying the treatment process and improving insertion and contact with the treatment site.
Implementation Method 1
releasing the negative pressure in the hollow internal space to cause the support section to dilate outwardly in a radial direction
Data Source
AI summary
A balloon can be rather easily pressed against an inner wall inside a lumen using a proper pressing force. A balloon has a dilating/deflating section that forms a hollow internal space, and that deflates by the internal space being decompressed, and a support section that is arranged in the internal space so as to deflate in response to the deflation of the dilating/deflating section, and that supports the dilating/deflating section so as to dilate outward in a state where the internal space is under atmospheric pressure.