Expandable instruments and related systems and methods
By designing an expandable device with curved sidewalls, the problem of insufficient perfusion lumen of balloon catheters in large blood vessels was solved, enabling blood flow to be maintained during vascular expansion, reducing the risk of myocardial ischemia and simplifying the delivery process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FOUNDRY LLC
- Filing Date
- 2021-03-24
- Publication Date
- 2026-06-05
AI Technical Summary
In current interventional vascular surgery, balloon catheters in larger vessels have difficulty maintaining sufficient perfusion lumen, leading to myocardial ischemia and other risks. Conventional methods limit the effective pressure around the balloon and increase the contraction diameter of the device, while multi-balloon designs increase complexity.
Design an expandable device with a curved portion on the stent sidewall that allows the formation of an annular perfusion lumen upon expansion, providing an alternative blood flow channel through the curved region and maintaining blood flow during balloon inflation. The stent material may be hyperelastic or heat-set. The stent has a cylindrical shape when contracted and forms an arched protrusion when expanded to adapt to the vessel diameter.
It enables blood flow to be maintained during vasodilation, reduces the risk of myocardial ischemia, shortens operation time and reduces complications, simplifies the instrument delivery process, and improves the efficiency of balloon catheter application in large blood vessels.
Smart Images
Figure CN115697255B_ABST