Implantable Aneurysm Pressure Control to Prevent Expansion
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Solution Overview
Problem
Existing treatments for aortic aneurysms, such as stent implantation, are prone to complications like embolism and lack robustness, necessitating a more effective and less invasive method for aneurysm treatment and monitoring.
Innovation Solution
A device comprising an implantable member that applies pressure on the aneurysm, equipped with sensors and control units for self-adjustment and pressure regulation, and optionally includes electrical stimulation to prevent aneurysm expansion, which can be adjusted postoperatively and monitored using a wireless or manual control system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stent implantation is used to treat aortic aneurysm, then the aneurysm can be reinforced and bursting prevented, but complications such as embolism occur and surgical complexity increases
Solution Approach 1:
The patent introduces a balloon catheter as an intermediary device that inflates within the aneurysm sac to apply compressive force against the vessel wall, reinforcing the aneurysm without requiring direct stent implantation that causes embolism. The balloon acts as a temporary mediator that provides structural support while avoiding the harmful effects of stent material introduction into the bloodstream.
Solution Approach 2:
The patent replaces the mechanical stent implantation system with a balloon inflation system. Instead of inserting rigid stent structures that can cause embolism, the system uses an inflatable balloon that delivers controlled mechanical compression through fluid pressure, eliminating the need for permanent foreign material implantation and associated embolism risks.
2Reliability
If open surgery with stent implantation is performed, then aneurysm treatment is achieved, but surgical complexity and recovery time increase
Solution Approach 1:
The patent replaces complex open surgical stent implantation with a minimally invasive balloon catheter system. The procedure involves inserting a catheter through the femoral artery and inflating a balloon at the aneurysm site, eliminating the need for complex open surgery, stent fabrication, and extensive surgical instrumentation while achieving comparable treatment effectiveness.
Solution Approach 2:
The balloon catheter serves as an intermediary device that simplifies the treatment process by providing a straightforward inflation-deflation mechanism rather than requiring complex stent deployment procedures. This intermediary approach reduces surgical complexity while maintaining treatment reliability through controlled balloon inflation that reinforces the aneurysm wall.
3Productivity
If tube graft is used to bypass aortic aneurysm, then blood flow can be maintained, but embolism formation increases when introducing alien material into bloodstream
Solution Approach 1:
The balloon catheter acts as a temporary intermediary that maintains blood flow through the aneurysm by compressing the weakened wall without requiring permanent foreign material implantation. The balloon provides sufficient support during the treatment period to maintain hemodynamic stability while avoiding the embolism risks associated with tube grafts and permanent stents.
Solution Approach 2:
The balloon catheter is designed as a temporary, disposable device that performs its function and is then deflated and removed, eliminating the need for permanent foreign material implantation. This short-living approach maintains blood flow during treatment while avoiding the long-term embolism risks associated with permanent tube grafts and stents.
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
The device effectively prevents aneurysm bursting by applying controlled pressure, reducing expansion, and provides non-invasive monitoring and adjustment, minimizing complications and enhancing treatment efficacy.
Implementation Method 1
The member is adapted to be placed in connection with a blood vessel having the aneurysm and to exercise a pressure on the aneurysm
Implementation Method 2
the device can also comprise a sensor for sensing an expansion of the aneurysm
Implementation Method 3
an electrical pulse generator adapted to provide electrical signals for stimulation of the aneurysm wall via electrodes located on the inside of the implantable member
Data Source
AI summary
In a system, device and method for treating an aneurysm of a human or mammal patient an implantable member adapted to hold fluid is provided. The member is adapted to be placed in connection with a blood vessel having the aneurysm and to exercise a pressure on the aneurysm of said blood vessel.