Vessel Cannulation Device with Pressure Sensor
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Solution Overview
Problem
Current methods for vascular access and aortic occlusion in emergency situations are inefficient and prone to complications, particularly in challenging environments, due to the complexity of the Seldinger technique and the need for specialized equipment and expertise.
Innovation Solution
A vessel cannulation device with a pressure sensor that automatically advances a guidewire upon detecting arterial pressure, combined with an expandable sheath and a tip localization device for precise catheter placement, enabling rapid and safe vascular access and aortic occlusion without the need for extensive training or specialized equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Seldinger technique is used for vascular access, then vascular access can be established, but the procedure becomes complex and requires specialized equipment and expertise
Solution Approach 1:
The device segments the complex Seldinger technique into integrated components: a needle assembly with guidewire, an expandable sheath, and a balloon catheter all combined in one system. This segmentation allows each component to perform its specific function while being part of a unified device that reduces overall procedural complexity.
Solution Approach 2:
The patent merges multiple functions into a single integrated device: vascular puncture (needle), guidewire placement, sheath deployment, and aortic occlusion (balloon) are all combined in one device. This merging eliminates the need for multiple separate instruments and reduces the complexity of coordinating multiple components during the procedure.
2Ease of operation
If automatic guidewire advancement is implemented, then the procedure can be performed by inexperienced personnel, but the device complexity increases
Solution Approach 1:
The device incorporates self-service features through the pressure sensor that automatically detects arterial pressure and triggers guidewire advancement without requiring manual intervention or interpretation by the operator. The system performs the advancement action autonomously based on sensor input, making the procedure accessible to inexperienced personnel.
Solution Approach 2:
The pressure sensor provides real-time feedback about arterial pressure detection, which automatically triggers the guidewire advancement mechanism. This feedback loop allows the device to respond to physiological conditions automatically, reducing the need for operator expertise while maintaining procedural safety and accuracy.
3Productivity
If rapid vascular access is achieved, then emergency treatment time is reduced, but the risk of complications increases
Solution Approach 1:
The device performs preliminary actions by pre-positioning the guidewire within the needle and having the sheath ready for immediate deployment upon needle insertion. The automatic guidewire advancement and sheath expansion occur as integrated follow-up actions, allowing rapid vascular access without the delays of manual manipulation while maintaining control to minimize complications.
Solution Approach 2:
The expandable sheath acts as an intermediary that facilitates rapid access while protecting against complications. It provides a controlled transition from needle puncture to catheter placement, sealing the puncture site and guiding the catheter safely into the vessel, thereby reducing the risk of complications associated with rapid insertion.
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
Facilitates quick and safe vascular access and aortic occlusion, reducing complications and improving outcomes in emergency situations by simplifying the procedure and allowing inexperienced personnel to perform it effectively.
Implementation Method 1
a sensor coupled to the lumen, the sensor being configured to sense a physiologic parameter
Data Source
Figure 1A~1C
Figure 2A~2F
Figure 2G~2K
AI summary
The present invention provides for devices and methods for providing endovascular therapy, including facilitating establishment of vascular access, placement of endovascular sheaths, catheter tip localization, and administration of vascular occlusion. The invention includes a vessel cannulation device, an expandable sheath, an occlusion catheter, and a localizer each of which may be provided separately or used as part of a system. One embodiment of the invention is a vessel cannulation device including: a housing having a distal end with a distal tip and a proximal end; a guidewire lumen passing through the housing and at least the distal tip; a sensor coupled to the guidewire lumen; and an advancing member, which is configured for advancing at least one of a guidewire or a sheath and which is operably coupled to the sensor.