Temporary Aortic Occlusion Device Locator Mechanism
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Solution Overview
Problem
Current methods for temporary aortic occlusion in non-compressible torso hemorrhage require fluoroscopic guidance, skilled practitioners, and invasive procedures, limiting their effectiveness at lower echelons of care where quicker and easier insertion methods are needed.
Innovation Solution
A temporary aortic occlusion device with an expandable locator portion and occlusion portion, composed of braided mesh wires, allows for non-fluoroscopic placement and controlled occlusion of the aorta, enabling easier insertion and removal without surgical repair, suitable for use by non-endovascular providers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fluoroscopic guidance is used for aortic occlusion balloon placement, then positioning precision and safety are improved, but device complexity, time consumption, and requirement for skilled practitioners increase
Solution Approach 1:
The patent removes the fluoroscopy guidance system from the device, extracting the imaging function entirely. The occlusion balloon is designed to be placed and positioned without any imaging guidance, relying instead on anatomical landmarks and tactile feedback, thereby eliminating the complexity associated with fluoroscopic equipment and procedures
Solution Approach 2:
The device performs self-positioning through tactile feedback mechanisms where the operator can feel resistance and anatomical structures during insertion, allowing the device to guide its own placement without external imaging assistance, reducing dependency on complex imaging systems
2Measurement precision
If fluoroscopic guidance is used for aortic occlusion balloon placement, then positioning precision is improved, but time consumption increases
Solution Approach 1:
By removing the fluoroscopy system entirely from the placement procedure, the patent eliminates the time required for imaging setup, contrast injection, and image interpretation, allowing for rapid blind placement that significantly reduces overall procedure time
Solution Approach 2:
The device enables skipping the imaging guidance steps entirely, allowing operators to rapidly insert and position the balloon using tactile feedback alone, thereby rushing through the placement process without the time-consuming imaging procedures
3Measurement precision
If fluoroscopic guidance is used for aortic occlusion balloon placement, then positioning precision is improved, but requirement for skilled practitioners increases
Solution Approach 1:
The device provides tactile feedback that serves as a self-guiding mechanism, allowing operators of varying skill levels to feel anatomical structures and resistance during insertion, enabling self-positioning without requiring specialized imaging interpretation skills
Solution Approach 2:
The patent replaces the complex optical imaging system (fluoroscopy) with a simple mechanical tactile feedback system during insertion, where the operator relies on hand-held device feedback and anatomical resistance rather than interpreting imaging studies, thereby simplifying the skill requirements
4Reliability
If traditional aortic cross-clamping is used, then hemorrhage control is achieved, but patient morbidity and mortality increase
Solution Approach 1:
The patent employs a temporary, disposable occlusion balloon designed for short-term use during trauma resuscitation. The balloon can be quickly inserted and removed without permanent surgical intervention, providing effective hemorrhage control while avoiding the long-term morbidity associated with traditional aortic cross-clamping
Solution Approach 2:
The device extracts the balloon from the body without requiring surgical incision closure or complex removal procedures. The small puncture site requires only minimal sealing, eliminating the need for formal surgical repair and reducing associated morbidity compared to traditional open aortic cross-clamping
5Ease of operation
If endovascular balloon occlusion is used, then invasiveness is reduced, but requirement for surgical repair of arteriotomy increases
Solution Approach 1:
The device is designed as a temporary occlusion tool that is removed after brief use. The entry site is intentionally small and designed to seal spontaneously or with minimal intervention, making the device disposable and eliminating the need for formal surgical repair of the arteriotomy
Data Source
AI summary
A temporary aortic occlusion device is disclosed, having an expandable locator portion and an expandable occlusion portion. The expandable locator portion assists a user in determining whether the distal end of the device has been advanced within a patient's aorta, and the occlusion portion is expanded to occlude the patient's aorta, preferably below the renal arteries.