External Aneurysm Compression Device With Expansion Sensing
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Solution Overview
Problem
Existing treatments for aortic aneurysms, such as stent implantation, are prone to complications like embolism and require invasive surgery, necessitating a more robust and less complicated method for treatment and monitoring.
Innovation Solution
A device is provided that can be adjusted postoperatively to apply pressure on the aneurysm, either mechanically or hydraulically, and includes a control unit and sensor to manage pressure based on sensor signals, with optional electrical stimulation to increase the tonus of the aneurysm wall, allowing non-invasive monitoring and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stent implantation is performed using open surgery, then the aneurysm can be treated, but the treatment is prone to complications like embolism and requires invasive surgery
Solution Approach 1:
The patent introduces a wearable external device as an intermediary between the medical professional and the aneurysm treatment. This external device applies pressure to the aneurysm through a cuff or band that can be adjusted, eliminating the need for direct invasive stent implantation and thereby reducing embolism risk while maintaining treatment effectiveness
Solution Approach 2:
The patent replaces the traditional mechanical stent implantation system with an external mechanical compression system. Instead of inserting a stent into the blood vessel, an external device applies pressure through a wearable cuff or band, substituting the invasive mechanical system with a non-invasive one that achieves the same therapeutic effect
2Reliability
If stent implantation is performed using open surgery, then the aneurysm can be treated, but invasive surgery is required
Solution Approach 1:
The external wearable device serves as an intermediary that enables aneurysm treatment without requiring direct surgical access to the blood vessel. The device can be applied externally to the body surface, eliminating the need for open surgery while maintaining treatment effectiveness through controlled pressure application
Solution Approach 2:
The patent substitutes the invasive surgical mechanical system with a non-invasive external mechanical system. The wearable cuff or band applies compression force externally, replacing the need for surgical insertion and manipulation of stents, thereby improving ease of operation while preserving treatment reliability
3Ease of operation
If the device is adjusted postoperatively, then treatment can be efficiently carried out without having to perform surgery, but the device complexity increases
Solution Approach 1:
The patent incorporates adjustable elements in the external device that allow postoperative modification of pressure application. The wearable cuff or band includes mechanisms such as adjustable straps, inflatable chambers, or expandable structures that can be modified after implantation to adapt to changing aneurysm conditions without requiring surgery
Solution Approach 2:
The device enables postoperative adjustment by allowing change in key parameters such as pressure magnitude, cuff expansion level, or band tightness. These parameter modifications can be achieved through simple user actions or automated control systems, providing flexibility in treatment without surgical intervention while managing device complexity through standardized adjustment protocols
4Reliability
If the device applies pressure to prevent aneurysm expansion, then the risk for the blood vessel to burst is reduced, but the device complexity increases
Solution Approach 1:
The external device incorporates self-regulating mechanisms that automatically adjust pressure application in response to aneurysm expansion. Features such as elastic materials with inherent tension, inflatable chambers that expand with the aneurysm, or expandable structures that self-adjust to maintaining optimal compression force, enable the device to contain the aneurysm while reducing the need for complex external control systems
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 reduces the risk of aneurysm expansion and burst by applying controlled pressure, providing efficient treatment and monitoring without invasive surgery, and can adapt to aneurysm expansion through self-adjustments.
Implementation Method 1
The surface of the device facing the blood vessel is adapted to exercise pressure on the blood vessel. The pressure can be applied either mechanically or hydraulically.
Implementation Method 2
The pressure can be applied either mechanically or hydraulically.
Implementation Method 3
the device comprises a control unit and a sensor, and the control unit is adapted to control the pressure applied onto an aneurysm based on signals generated by the sensor
Implementation Method 4
with optional electrical stimulation to increase the tonus of the aneurysm wall
Data Source
AI summary
The present invention relates to a method for implanting a device for treating an aneurysm of a patient. The method involves cutting the skin of said patient, dissecting an area of a blood vessel having the aneurysm, placing an implantable member in connection with the outside of the blood vessel having the aneurysm to exercise a pressure on the outside of the blood vessel having the aneurysm and placing a measuring device or sensor in connection in the body of the patient, wherein the measuring device or sensor is configured to measuring or sensing an expansion of the aneurysm.