Method of robotically driving a multi catheter assembly above the aortic arch
Inventors
Yang, Yi • Mar, Craig • Luna, Michael • Lau, Lilip
Assignees
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Publication Number
US-12564458-B2
Publication Date
2026-03-03
Expiration Date
Abstract
A method of achieving supra aortic access includes the steps of providing an assembly including a guidewire, an access catheter and a guide catheter, coaxially moveably assembled into a single multi-catheter assembly, coupling the assembly to a drive system, driving the assembly to an aortic arch, and advancing the access catheter to achieve supra-aortic access to a branch vessel off of the aortic arch.
Core Innovation
The disclosed method achieves supra-aortic access using a single multi-catheter assembly comprising a guidewire, an access catheter, and a guide catheter coaxially assembled for relative movement. The assembly is driven together to an aortic arch, after which the access catheter and the guidewire advance to provide access to a branch vessel. The guide catheter subsequently advances into that branch vessel, while the background section describing the problem being solved is not included in the provided content.
The description also presents robotic drive systems that independently move the devices through magnetic or mechanical couplings across a sterile barrier. During catheter-stack priming, reciprocal axial movement of adjacent devices during fluid injection leaves inter-catheter lumens substantially free of air bubbles, unlike fluid injection without relative movement. The resulting access supports subsequent neurovascular procedures, including intracranial thrombectomy.
Claims Coverage
The provided claim set identifies one independent claim, directed to a method of achieving supra-aortic access, comprising three inventive features.
Coaxially assembled multi-catheter assembly
Providing a single multi-catheter assembly comprising a guidewire, an access catheter, and a guide catheter coaxially moveably assembled into the single multi-catheter assembly, and coupling the assembly to a drive system.
Driving the assembly to the aortic arch
Driving the guidewire, the access catheter, and the guide catheter of the single multi-catheter assembly together to an aortic arch.
Advancing the devices to achieve supra-aortic access
Advancing the access catheter and the guidewire relative to the guide catheter to achieve supra-aortic access to a branch vessel off of the aortic arch while maintaining the guide catheter at the aortic arch, then advancing the guide catheter over the access catheter and guidewire into the branch vessel.
The independent claim covers a coaxially assembled guidewire, access catheter, and guide catheter coupled to a drive system that are driven together to the aortic arch, followed by relative advancement to access a branch vessel and advancement of the guide catheter into that vessel.
Stated Advantages
The description reports that the inter-catheter lumen remains substantially free of air bubbles after axial reciprocal movement of adjacent devices during catheter-stack priming, unlike fluid injection without relative catheter movement.
Documented Applications
Achieving supra-aortic access to a branch vessel off of the aortic arch.
Neurovascular, peripheral, central, coronary, and intracranial procedures, including intracranial thrombectomy using a clot retriever as a procedure catheter.
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