Balloon catheter with floating hub

Patent metadata

Field	Value
Publication number	US-11878134-B2
Application number	US-202117242726-A
Country	US
Kind code	B2
Filing date	Apr 28, 2021
Priority date	Mar 9, 2012
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A balloon catheter for use with a guidewire includes an elongated, tubular shaft extending in a longitudinal direction, said shaft having a proximal end and a distal end. An inflatable balloon is connected to the distal end of the shaft, the balloon including a working surface. A radiopaque identifier is provided for identifying the working surface. A receiver adjacent the proximal end of the shaft is adapted for allowing the shaft to move relative to the receiver in at least the longitudinal direction.

First claim

The invention claimed is:

1. A balloon catheter for use with a guidewire, comprising:
an elongated tubular shaft extending in a longitudinal direction, said elongated tubular shaft having a proximal end and a distal end;
an inflatable balloon connected to the distal end of the shaft, the balloon having an interior compartment; and
an at least partially radiopaque insert within the interior compartment of the balloon and spaced radially outwardly from the elongated tubular shaft, the at least partially radiopaque insert having one or more perforations
wherein a distal terminal end of the at least partially radiopaque insert is aligned with an edge of a working surface of the inflatable balloon.

2. The balloon catheter of claim 1 , wherein the at least partially radiopaque insert comprises a tubular sleeve arranged coaxially with the elongated tubular shaft.

3. The balloon catheter of claim 1 , wherein the at least partially radiopaque insert comprises a first insert at a proximal end of the balloon, and further including a second insert at a distal end of the balloon.

4. The balloon catheter of claim 1 , wherein the one or more perforations comprise a plurality of perforations spaced in a longitudinal direction.

5. The balloon catheter of claim 1 , wherein one end of the at least partially radiopaque insert is connected to the balloon.

6. The balloon catheter of claim 1 , wherein a proximal end of the at least partially radiopaque insert is connected to the balloon.

7. The balloon catheter of claim 1 , wherein the at least partially radiopaque insert is located at a proximal end of the balloon.

8. A balloon catheter for use with a guidewire, comprising:
an elongated tubular shaft extending in a longitudinal direction, said elongated tubular shaft having a proximal end and a distal end;
an inflatable balloon connected to the distal end of the elongated tubular shaft, the balloon having an interior compartment and a working surface; and
an at least partially radiopaque insert within the interior compartment of the inflatable balloon, spaced radially outwardly from the elongated tubular shaft, and having a distal terminal end in alignment with a proximal edge of the working surface, the at least partially radiopaque insert having one or more perforations.

9. The balloon catheter of claim 8 , wherein the at least partially radiopaque insert comprises a tubular sleeve arranged coaxially with the elongated tubular shaft.

10. The balloon catheter of claim 8 , wherein the at least partially radiopaque insert comprises a first insert at a proximal end of the balloon, and further including a second insert at a distal end of the balloon.

11. The balloon catheter of claim 8 , wherein the one or more perforations comprise a plurality of perforations spaced in a longitudinal direction.

12. The balloon catheter of claim 8 , wherein a second end of the at least partially radiopaque insert is connected to the balloon.

13. The balloon catheter of claim 8 , wherein the at least partially radiopaque insert is located at a proximal end of the balloon.

14. A balloon catheter for use with a guidewire, comprising:
an elongated tubular shaft extending in a longitudinal direction, said elongated tubular shaft having a proximal end and a distal end;
an inflatable balloon connected to the distal end of the elongated tubular shaft, the balloon having an interior compartment; and
an at least partially radiopaque insert within the interior compartment at a proximal end of the inflatable balloon, the at least partially radiopaque insert having one or more perforations;
wherein the at least partially radiopaque insert comprises a first insert, and further including a second insert being at least partially radiopaque and distal of the first insert and extending within the interior compartment of the inflatable balloon, the second insert being spaced radially outwardly from the elongated tubular shaft.

15. The balloon catheter of claim 14 , wherein the at least partially radiopaque insert comprises a tubular sleeve arranged coaxially with the elongated tubular shaft.

16. The balloon catheter of claim 14 , wherein the first and second inserts are combined into a single unitary piece of material extending continuously between the proximal and distal ends of the balloon.

Assignees

• Clearstream Tech Ltd

Inventors

• Byrne Pat
• Jensen Angela Kay
• Schaffer Andrew

Classifications

• A61M25/104 Primary

  used for angioplasty · CPC title

• A61M25/0097 Primary

  characterised by the hub (connectors A61M39/10) · CPC title

• A61M25/1006

  Balloons formed between concentric tubes · CPC title

• A61M2025/105

  having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes · CPC title

• A61M2025/1079

  having radio-opaque markers in the region of the balloon · CPC title