Occlusion Catheter Pressure Feedback for Controlled Aortic Perfusion
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Solution Overview
Problem
Existing vascular occlusion procedures, particularly aortic occlusion, face challenges in managing transient hypertension during occlusion and hypotension upon reestablishing blood flow, often requiring fluoroscopy and complex imaging, and are not suitable for field applications.
Innovation Solution
An arterial occlusion catheter system with an atraumatic guiding tip and a pressure accumulator that automatically adjusts occlusion based on physiological parameters, allowing perfusion control without fluoroscopy, and includes computer-controlled monitoring and feedback mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional vascular occlusion procedures are performed with fluoroscopy and imaging, then occlusion control is achieved, but device complexity and procedural complexity increase
Solution Approach 1:
The catheter system performs self-monitoring and self-regulation of occlusion through integrated pressure sensors and automated control mechanisms. The system automatically detects pressure changes and adjusts occlusion levels without requiring continuous fluoroscopy or manual intervention, thereby reducing procedural complexity while maintaining reliable occlusion control.
Solution Approach 2:
The system incorporates pressure sensors that continuously monitor vascular pressure and provide feedback to the control mechanism. This feedback loop enables automatic adjustment of occlusion levels to maintain optimal pressure ranges, eliminating the need for complex imaging guidance while ensuring reliable occlusion control through real-time physiological monitoring.
2Reliability
If automated pressure monitoring and feedback control are implemented, then hypertension and hypotension management is improved, but device complexity increases
Solution Approach 1:
The system combines pressure monitoring, automated control, and occlusion regulation into a single integrated catheter assembly. By merging these functions into one unified device rather than separate components, the system achieves effective blood pressure management during occlusion while minimizing the overall complexity that would arise from multiple independent systems.
Solution Approach 2:
The catheter system is designed to perform multiple functions including occlusion, pressure monitoring, and automated blood pressure regulation within a single device. This multi-functionality allows the system to manage both hypertension during occlusion and hypotension upon reperfusion without requiring separate specialized devices, thereby improving blood pressure management while keeping device complexity manageable.
3Measurement precision
If fluoroscopy and imaging are used for occlusion procedures, then positioning accuracy is improved, but loss of time and increased device complexity occur
Solution Approach 1:
The catheter incorporates pre-positioned pressure sensors and pre-calibrated measurement capabilities that are ready for immediate use upon deployment. This preliminary preparation of measurement systems eliminates the need for time-consuming imaging procedures to verify positioning, as the sensors automatically begin monitoring physiological parameters that confirm accurate placement without requiring fluoroscopy or additional imaging time.
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 safe and automated management of hypertension and hypotension during vascular occlusion procedures, facilitating field use and reducing the need for imaging, while maintaining controlled perfusion.
Implementation Method 1
a pressure accumulator communicating with the occluding member
Data Source
AI summary
An occlusion catheter system is provided for at least partial occlusion of a vessel. The occlusion catheter system includes a proximal hub having an inflation connection port and an inflation pathway. An inflation catheter member is fluidly connected to the proximal hub. An occlusion balloon has a proximal balloon end and a distal balloon end, the proximal balloon end being fluidly connected to the inflation catheter member. A distal catheter member is connected to the distal balloon end and includes an atraumatic tip on a distal end thereof, the atraumatic tip having a substantially circular profile in one configuration. The occlusion balloon, the inflation catheter member and the distal catheter member have a greatest outer diameter of less than 7 Fr in an uninflated condition.