Balloon Catheter Bypass Tubes Maintain Blood Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Balloon dilatation catheters often block blood flow during angioplasty, leading to complications, and are difficult to reuse due to irreversible deformation after use, resulting in increased costs for patients and healthcare institutions.
Innovation Solution
A balloon dilatation catheter design featuring a catheter tube, a balloon connected to the tube, a guide tube, and one or more bypass tubes that maintain blood flow by creating a tunnel for blood flow between the blocked blood vessel sides during balloon inflation, with the bypass tubes being made of elastic material and arranged spirally around the guide tube to restore the balloon's shape after deflation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the balloon is completely inflated to block the blood vessel during angioplasty, then the therapeutic effect is improved, but blood flow is blocked leading to complications
Solution Approach 1:
The balloon is divided into multiple expansion sections (first, second, and third expansion sections) with different expansion forces. This segmentation allows different portions of the balloon to occlude the vessel at different times or with different pressures, enabling selective blood flow management while maintaining therapeutic effect in target areas.
Solution Approach 2:
Different expansion sections of the balloon are designed with different expansion forces to create localized effects. The first expansion section has a different expansion force than the second and third sections, allowing tailored occlusion and blood flow control in different vessel segments to prevent complications while maintaining therapy.
2Reliability
If the balloon is made to completely occlude the blood vessel for effective angioplasty, then the therapeutic effect is improved, but blood flow is blocked causing patient instability
Solution Approach 1:
The balloon is divided into multiple expansion sections that can occlude the vessel in a controlled, segmented manner. This allows maintaining therapeutic effect while preventing complete blood flow blockage, thereby preserving patient stability during the procedure.
Solution Approach 2:
Instead of complete occlusion, the balloon uses partial occlusion through multiple expansion sections with different expansion forces. This partial action is sufficient to achieve therapeutic effect while avoiding the harmful effects of complete blood flow blockage on patient stability.
3Ease of operation
If the balloon is deflated completely after use, then the catheter can be removed, but the balloon cannot be restored to its original shape making reuse difficult
Solution Approach 1:
The balloon is constructed as a flexible thin-walled structure that can be repeatedly inflated and deflated without permanent deformation. This flexible shell design allows the balloon to return to its original shape after deflation, enabling multiple uses of the same catheter.
Solution Approach 2:
The balloon is designed with dynamic properties that allow it to transition between inflated and deflated states multiple times. The material and structure are engineered to maintain elasticity and shape recovery capability, making the catheter adaptable for repeated use rather than single-use disposal.
4Stability of the object's composition
If multiple catheters are used during procedures to ensure blood flow, then patient stability is improved, but costs increase significantly
Solution Approach 1:
The balloon catheter is designed to perform multiple functions within a single device. The multiple expansion sections can provide both therapeutic occlusion and maintain blood flow pathways, eliminating the need for separate catheters and reducing overall procedure costs while maintaining patient stability.
Solution Approach 2:
The invention merges the functions of multiple catheters into a single multi-section balloon catheter. By combining occlusion capability and blood flow maintenance in one device, it reduces the quantity of catheters needed while achieving the same patient stability outcomes.
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
This design ensures stable blood flow during procedures, facilitates catheter reuse, and reduces costs by maintaining effective blood flow and minimizing the area of the balloon when deflated, thus preventing complications and reducing the need for multiple catheters.
Implementation Method 1
blood flow is maintained through the bypass tubes between both sides of the blood vessel blocked by the balloon in a state where the balloon is dilatated
Implementation Method 2
the bypass tubes being made of elastic material and arranged spirally around the guide tube to restore the balloon's shape after deflation
Data Source
AI summary
One embodiment provides a balloon dilatation catheter. The balloon dilation catheter, according to the embodiment, comprises a catheter tube provided to be disposed in a blood vessel, a balloon connected to the catheter tube and dilatated by fluid injection, a guide tube disposed along the catheter tube in the balloon and one or more bypass tubes located inside the balloon.