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.
Claims22
A microcatheter used to navigate through a blood vessel bifurcation region for addressing a ledge effect, comprising:
- a microcatheter body having a guidewire passage therethrough;
- a bulb having an enlarged outer diameter relative to a proximal portion of the microcatheter body;
- the bulb being composed of a noninflatable polymeric material and having a cylindrical shape with symmetrically tapered proximal and distal ends;
- and,
- a distal tip having an outer diameter smaller than the bulb and being connected to the symmetrically tapered distal end.
A microcatheter used to navigate through a blood vessel bifurcation region for addressing a ledge effect, comprising:
- a microcatheter body having a guidewire passage therethrough;
- a solid, cylindrical portion formed of a polymeric material and having an enlarged outer diameter relative to a proximal portion of the microcatheter body;
- a distal tapered portion immediately adjacent to the cylindrical portion;
- a proximal tapered portion immediately adjacent to the cylindrical portion;
- the proximal tapered portion being generally symmetrical to the distal tapered portion;
- and,
- a distal tip being immediately adjacent to the distal tapered portion and having an outer diameter smaller than the cylindrical portion.
A microcatheter used to navigate through a blood vessel bifurcation region for addressing a ledge effect, comprising:
- a microcatheter body having a guidewire passage therethrough;
- and,
- a bulb having an enlarged outer diameter relative to a proximal portion of the microcatheter body;
- the bulb being composed of a noninflatable polymeric material and having a cylindrical shape with symmetrically tapered proximal and distal ends.
A kit of parts used to navigate through a blood vessel bifurcation region for addressing a ledge effect by bridging a gap in a guide catheter, comprising:
- the guide catheter having an inner passage therein;
- a microcatheter sized to fit within the inner passage of the guide catheter;
- the microcatheter having a distal bulb section with an enlarged outer diameter, the distal bulb section of the intermediate microcatheter configured to reduce the gap within the guide catheter inner passage, to thereby address the ledge effect.
Dependencies are inferred from the claim text.