Inflation lumen kink protection and balloon profile

Patent metadata

Field	Value
Publication number	US-12434035-B2
Application number	US-202418581692-A
Country	US
Kind code	B2
Filing date	Feb 20, 2024
Priority date	May 9, 2019
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

A balloon guide catheter having a sleeved inflation lumen secured with a wire wrap for improved inflation lumen kink protection and a welded balloon construction provides a robust and flexible catheter with an exceptionally large inner lumen relative to its outer profile and enables rapid and reliable balloon inflation and deflation in a highly deliverable and kink resistant catheter. Balloon guide catheters having multiple sleeved inflation lumens and proximal luers for utilizing the multiple inflation lumens are also provided.

First claim

What is claimed is:

1. A catheter comprising:
a substantially tubular inner core forming an inner hollow lumen;
a first inflation sleeve comprising a first inflation lumen therethrough and extending a majority of the length of the tubular inner core;
a wound wire mesh securing the first inflation sleeve to an outer surface of the tubular inner core; and
a balloon mechanically affixed at respective proximal and distal ends via a corresponding tie-layer to a distal portion of an outer surface of the tubular inner core without altering an interior surface of the inner hollow lumen; and the balloon is in fluidic communication with the first inflation lumen of the first inflation sleeve;

wherein the wound wire mesh secures a second inflation sleeve to the outer surface of the tubular inner core, the wound wire mesh comprises wires that run individually over and under the first inflation sleeve and the second inflation sleeve thereby separating the first inflation sleeve from the second inflation sleeve.

2. The catheter of claim 1 , wherein the first inflation sleeve comprises a substantially crescent shape cross section.

3. The catheter of claim 1 , further comprising a polymeric layer disposed between the first inflation sleeve and the wound wire mesh.

4. The catheter of claim 3 , further comprising a polymeric jacket sleeve encircling the tubular inner core.

5. The catheter of claim 4 , wherein the polymeric jacket sleeve is fused with the polymeric layer disposed between the inflation sleeve and the wound wire mesh, and wherein the polymeric jacket sleeve effectively seals a damaged opening in the first inflation sleeve.

6. The catheter of claim 1 , wherein the wound wire mesh comprises wires that run together over and under the first inflation sleeve and the second inflation sleeve collectively.

7. The catheter of claim 1 , wherein the balloon inflates to have a substantially trapezoidal profile characterized by a larger diameter distal end and a smaller diameter proximal end.

8. The catheter of claim 7 , wherein the balloon inflates to define an angle measurable between a line parallel to a non-parallel side of the trapezoidal profile and a line parallel to the distal portion of the tubular inner core, and wherein the angle measures less than 70 degrees.

9. The catheter of claim 1 , wherein the wound wire mesh comprises:
a first plurality of wire segments extending across an outer surface of the first inflation sleeve; and
a second plurality of wire segments extending under an inner surface of the first inflation sleeve,
wherein a majority of the wire segments in the first plurality of wire segments are each substantially parallel to each other,
wherein a majority of the wire segments in the second plurality of wire segments are each substantially parallel to each other, and
wherein some of the first plurality of wire segments cross some of the second plurality of wire segments.

Assignees

• Neuravi Ltd

Inventors

• Casey Brendan
• Kelly Ronald
• Vale David
• Foley Denis
• Gilvarry Michael

Classifications

• A61M2025/1061

  having separate inflations tubes, e.g. coaxial tubes or tubes otherwise arranged apart from the catheter tube · CPC title

• A61M2025/0059

  having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking · CPC title

• A61M2025/0039

  characterized by lumina being arranged coaxially · CPC title

• A61M39/223

  Multiway valves · CPC title

• A61M25/1002 Primary

  characterised by balloon shape (A61M25/1006, A61M25/1009 take precedence) · CPC title