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US 2025/0050060 A1Published application
Intravascular Treatment Site Access
AssigneeMicroVention, Inc.
InventorsMichelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
Life of this patent
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Abstract
The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
Claims20
A catheter system, comprising:
- an outer catheter comprising a lumen;
- and
- an inner catheter movable within the lumen of the outer catheter;
- wherein the inner catheter comprises an inwardly tapered distal tip;
- wherein at least a portion of the inwardly tapered distal tip of the inner catheter is positioned past a distal end of the outer catheter;
- and,
- wherein an outer diameter of a distal portion of the inner catheter is less than a diameter of the lumen of the outer catheter.
4 more elements
A catheter system, comprising:
- an outer catheter comprising a lumen;
- and
- an inner catheter within the lumen of the outer catheter;
- wherein the inner catheter comprises a distal portion and an inwardly tapered distal tip;
- wherein at least a portion of the distal portion of the inner catheter is positioned past a distal end of the outer catheter;
- and,
- wherein an outer diameter of the distal portion of the inner catheter is less than a diameter of the lumen of the outer catheter.
4 more elements
A microcatheter used to navigate through a blood vessel bifurcation region comprising:
- a first section;
- and
- a distal tip distal of the first section, a distal tip outer diameter being smaller than a first section outer diameter;
- wherein the first section is configured to create an interface to minimize an open space between the microcatheter and an overlying guide catheter to prevent any exposed surface to be caught in the blood vessel bifurcation region, wherein the interface includes a gap between the microcatheter and the overlying guide catheter to allow the microcatheter to move within and beyond the overlying guide catheter;
- wherein the first section is positioned at least partially, distally beyond a distal end of the overlying guide catheter to create the interface;
- and,
- wherein the interface between the microcatheter and the guide catheter includes the gap being 0.001 inch around all sides of the microcatheter.
4 more elements
Dependencies are inferred from the claim text.