PERFUSION BALLOON WITH INTERNAL VALVE

• US 20170252543A1
• Filed: 03/04/2016
• Published: 09/07/2017
• Est. Priority Date: 03/04/2016
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Gomes, Garrett, Moll, Andrew, Moore, Cameron, Radochonski, Samuel, Virk, Chander, Young, Anthony
• Granted Patent: US 11,565,090 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/22098 Decalcification of valves
• CPC Class Codes: A61M 2025/0076 Unidirectional valves
• CPC Class Codes: A61M 2025/1072 having balloons with two or more compartments
• CPC Class Codes: A61M 2025/1081 having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• CPC Class Codes: A61M 2025/1097 with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon
• CPC Class Codes: A61M 2210/125 Heart
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/10185 Valves
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

An apparatus for performing a medical procedure and, in particular, an aortic valvuloplasty, in a vessel for transmitting a flow of fluid. The apparatus comprises a shaft, an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition, and a valve for controlling the fluid flow within the passage. The valve may be connected to the shaft, or may comprise an elongated tube partially connected to the balloon. The balloon may comprise a plurality of cells in a single cross-section, each cell including a neck, and the valve may be positioned in a space between the shaft and the necks for controlling the fluid flow within the passage. A connector may also be provided to control the position of the valve.

Claims

1. An apparatus for performing a medical procedure in a vessel for transmitting a flow of fluid, comprising:

a shaft;

an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition; and

a valve connected to the shaft for controlling the fluid flow within the internal passage.

2. The apparatus of claim 1, wherein the valve comprises a body having a generally frusto-conical shape in an expanded condition.

3. The apparatus of claim 1, wherein the valve comprises a single body or a plurality of flaps.

4. The apparatus of claim 1, wherein the valve includes an aperture for receiving a portion of the balloon.

5. The apparatus of claim 4, wherein the portion of the balloon comprises a neck.

6. The apparatus of claim 1, wherein the balloon comprises a plurality of cells in a single cross-section bounding the internal passage, and the valve is positioned in a portion of the internal passage formed by the cells.

7. The apparatus of claim 1, wherein the balloon comprises a plurality of cells in a single cross-section bounding the internal passage, wherein each cell comprises a neck, and the valve when actuated occupies a space between the necks and the shaft.

8. The apparatus of claim 7, wherein the valve is connected to at least one of the necks.

9. The apparatus of claim 1, further including a connector for connecting the valve to the balloon, the shaft or a sheath associated with the shaft.

10. An apparatus for performing a medical procedure in a vessel for transmitting a flow of fluid, comprising:

a shaft;

an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition; and

a valve comprising an elongated tube adapted for partially collapsing to control the fluid flow within the passage.

11. The apparatus of claim 10, wherein the tube is at least partially connected to the balloon.

12. The apparatus of claim 11, wherein the tube comprises a distal portion connected to the balloon and a proximal portion not connected to the balloon.

13. The apparatus of claim 12, wherein the proximal portion has a continuous cross-section forming a circumferential seal with the balloon.

14. The apparatus of claim 10, wherein the balloon comprises a plurality of cells in a single cross-section, and the tube is positioned in a part of the passage formed by the plurality of cells.

15. The apparatus of claim 10, wherein the each of the cells is rounded along an inner face, and at least a portion of the tube connected to the cells comprises a cross-section in the form of a star having projections for positioning between adjacent cells and recesses between the projections for engaging the rounded cells.

16. An apparatus for performing a medical procedure in a vessel for transmitting a flow of fluid, comprising:

a shaft;

an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition, the balloon comprising a generally tapered portion extending toward the shaft; and

a valve positioned in a space between the shaft and the balloon in the generally tapered portion for controlling the fluid flow within the passage.

17. The apparatus of claim 16, wherein the valve comprises a body having a generally frusto-conical shape in an expanded condition.

18. The apparatus of claim 16, wherein the valve comprises a single body or a plurality of flaps.

19. The apparatus of claim 16, wherein the valve includes an aperture for receiving a portion of the balloon.

20. The apparatus of claim 16, wherein the generally tapered portion is at a distal end portion of the balloon.

21. An apparatus for performing a medical procedure in a vessel for transmitting a flow of fluid, comprising:

a shaft;

an inflatable perfusion balloon supported by the shaft and including an internal passage for permitting the fluid flow in the vessel while the perfusion balloon is in an inflated condition;

a valve for controlling the fluid flow within the passage; and

a connector for connecting to the valve to control the position thereof.

22. The apparatus of claim 21, wherein the connector comprises a tether extending between the valve and the balloon for preventing the valve from inverting.

23. The apparatus of claim 21, wherein the connector comprises a tether extending between the valve and the shaft or an associated sheath.