Inflatable Luminal Blocking Device With Vacuum Wall Grip
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Solution Overview
Problem
Current methods for treating aortic aneurysms require stopping the heart, which is invasive and risky, leading to high mortality rates.
Innovation Solution
A surgical system with a tubular blocking device that can be inserted through an incision and inflated to grip the luminal wall, allowing the aorta to be blocked without stopping the heart, using a combination of inflatable portions and suction to secure the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If open heart surgery is used to treat aortic aneurysm, then the aorta can be replaced with a graft, but the heart must be stopped which increases trauma and mortality risk
Solution Approach 1:
The blocking device is divided into multiple functional segments: an inflatable portion for occlusion, a gripping feature for anchoring to the aortic wall, and a tubular body for access. This segmentation allows each component to perform its specific function independently, enabling effective aortic blocking without requiring heart cessation.
Solution Approach 2:
The device utilizes pneumatic inflation of the inflatable portion to expand and block the aorta. The inflatable portion can be inflated through a conduit to achieve occlusion, providing a non-invasive method to stop blood flow in the aorta without stopping the heart itself.
2Object-affected harmful factors
If a blocking device is inserted through an incision and inflated to grip the luminal wall, then the aorta can be blocked without stopping the heart, but the device complexity increases
Solution Approach 1:
The blocking device merges multiple functions into a single integrated structure: the inflatable portion for occlusion, the gripping feature for anchoring, and the tubular body for access are combined into one device. This merging reduces the number of separate components needed while achieving effective aortic blocking.
Solution Approach 2:
The blocking device is designed with multi-functionality to perform multiple tasks: it can be inserted through an incision, inflated to block the aorta, and anchored to the aortic wall using the gripping feature. This universal design allows a single device to accomplish what would traditionally require multiple separate instruments.
3Reliability
If the blocking device uses inflatable portions and suction to secure the device, then the aorta can be blocked effectively, but the device complexity and operational difficulty increase
Solution Approach 1:
The device incorporates a vacuum source that creates suction to anchor the blocking device to the aortic wall. This feedback mechanism ensures the device remains securely positioned during the procedure, providing reliable aortic occlusion while allowing for easy deployment through the incision.
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 aortic aneurysm repair with reduced trauma to the patient by maintaining heart function, potentially reducing mortality and improving surgical outcomes.
Implementation Method 1
A first conduit through the tubular body is connected to a pressure source for inflating the annular inflatable portion
Implementation Method 2
a second conduit through the tubular body is connected to a vacuum source for suctioning a luminal wall of the luminal body against the gripping feature
Data Source
AI summary
A surgical system for blocking a luminal body at a selected location has a tubular body that extends from a proximal end to a distal end, and a blocking device on the distal end of the tubular body. The blocking device has a guide cap and a gripping feature, and at least one annular inflatable portion positioned around an outer circumference of the gripping feature. A first conduit through the tubular body is connected to a pressure source for inflating the annular inflatable portion, and a second conduit through the tubular body is connected to a vacuum source for suctioning a luminal wall of the luminal body against the gripping feature.