Reinforced balloon catheter

Patent metadata

Field	Value
Publication number	US-12178976-B2
Application number	US-202217822006-A
Country	US
Kind code	B2
Filing date	Aug 24, 2022
Priority date	Nov 21, 2014
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A balloon catheter is described, having a reinforced, co-axial, dual lumen design. At least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.

First claim

What is claimed is:

1. A balloon catheter, comprising:
a balloon attached to a distal portion of a tubular member, wherein the tubular member includes an inflation lumen in communication with the balloon;
a purge passage extending between an interior of the balloon and an exterior of the tubular member; and
a first liner connected to the purge passage;
the purge passage having an open configuration to allow movement of fluid through the purge passage to the exterior of the tubular member and a closed configuration to prevent movement of fluid through the purge passage; and,
wherein, in an inflated configuration, the first liner expands so as to obstruct at least a portion of the purge passage into the closed configuration without the first liner being exposed to an inflation liquid.

2. The balloon catheter of claim 1 , further comprising a second liner connected to the purge passage, wherein the second liner obstructs the purge passage when the purge passage is in the closed configuration.

3. The balloon catheter of claim 2 , wherein the first liner is positioned on a first side of the purge passage, wherein the second liner is positioned on a second side of the purge passage, and wherein the first side is opposite to the second side.

4. The balloon catheter of claim 1 , wherein at least a portion of the purge passage is sealed when in the closed configuration.

5. The balloon catheter of claim 1 , wherein an entire length of the purge passage is sealed when in the closed configuration.

6. The balloon catheter of claim 1 , wherein the first liner obstructs the purge passage in response to an aspiration pressure.

7. The balloon catheter of claim 1 , wherein the purge passage includes a restricting member which prevents over-aspiration.

8. The balloon catheter of claim 7 , wherein the restricting member is comprised of a wall region having an increased thickness.

9. The balloon catheter of claim 7 , wherein the restricting member is comprised of a projection.

10. The balloon catheter of claim 1 , wherein the purge passage has an elliptical shape when in the open configuration.

11. A balloon catheter, comprising:
a balloon attached to a distal portion of a tubular member, wherein the tubular member includes an inflation lumen in communication with the balloon;
a purge passage extending between an interior of the balloon and an exterior of the tubular member; and
a first liner connected to a first side of the purge passage;
a second liner connected to the purge passage, wherein the first liner is positioned at a first radial position along a circumference of the purge passage, wherein the second liner is positioned at a second radial position along the circumference of the purge passage, and wherein the first radial position is opposite to the second radial position;
the purge passage having an open configuration to allow movement of fluid through the purge passage to the exterior of the tubular member and a closed configuration to prevent movement of fluid through the purge passage; and,
wherein the first liner and the second liner obstruct the purge passage when the purge passage is in the closed configuration, wherein at least a portion of the purge passage is sealed when in the closed configuration.

12. The balloon catheter of claim 11 , wherein the first liner and the second liner obstruct the purge passage in response to a vacuum pressure.

13. The balloon catheter of claim 11 , wherein the first liner and the second liner obstruct the purge passage without being exposed to fluid.

14. The balloon catheter of claim 11 , wherein the purge passage includes a restricting member which blocks flow at a proximal end of the purge passage when the balloon is collapsed over the purge passage.

15. The balloon catheter of claim 14 , wherein the restricting member is positioned at a proximal end of the purge passage.

16. The balloon catheter of claim 14 , wherein the restricting member is comprised of a bump.

17. The balloon catheter of claim 11 , wherein the purge passage has a C- or D-shaped cross-section when in the open configuration.

18. The balloon catheter of claim 11 , further comprising a hydrophilic swellable material adjacent to the purge passage.

19. A balloon catheter, comprising:
a balloon attached to a distal portion of a tubular member, wherein the tubular member includes an inflation lumen in communication with the balloon;
a purge passage incorporated into a wall of a distal portion of the balloon, the purge passage having an open configuration to allow movement of fluid through the purge passage to an exterior of the tubular member and a closed configuration to prevent movement of fluid through the purge passage; and,
a first liner means for obstructing the purge passage when the purge passage is in the closed configuration; and,
wherein, in an inflated configuration, the first liner means expands so as to obstruct at least a portion of the purge passage into the closed configuration without the first liner means being exposed to an inflation liquid.

20. The balloon catheter of claim 19 , further comprising a second liner means connected to the purge passage, wherein the first liner means is positioned at a first radial position along a circumference of the purge passage, wherein the second liner means is positioned at a second radial position along the circumference of the purge passage, and wherein the first radial position is opposite to the second radial position.

Assignees

• Microvention Inc

Inventors

• Gulachenski Joseph A
• Guyon Roland
• Lei Cathy
• Peralta Nelson
• Wolde-Meskel Tadele Haile
• Corvese Russell

Classifications

• A61M25/1006

  Balloons formed between concentric tubes · CPC title

• A61M25/0053

  having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid · CPC title

• A61M25/005

  with embedded materials for reinforcement, e.g. wires, coils, braids · CPC title

• A61M25/0045

  multi-layered, e.g. coated (coating materials A61L29/08) · CPC title

• A61M2025/1077

  having a system for expelling the air out of the balloon before inflation and use · CPC title