NEUROVASCULAR OTW PTA BALLOON CATHETER AND DELIVERY SYSTEM

• US 20100256600A1
• Filed: 04/02/2010
• Published: 10/07/2010
• Est. Priority Date: 04/04/2009
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Ferrera, David A.
• Application Number:
  US12/753,812
• Publication Number:
  US 20100256600A1
• Time in Patent Office: Days
• US Class Current: 604/509
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

Briefly stated, a balloon catheter and delivery system, includes in combination a catheter having a proximal end and a distal end, wherein the catheter comprises a delivery lumen, an inflation lumen, and a balloon disposed near the distal end of the catheter; and an expandable device at least partially disposed within the delivery lumen of the catheter, wherein the expandable device comprises a cage-like structure and a tether. An improved method for treating ischemic stroke is likewise disclosed, including crossing an occlusion with the catheter, whereby a channel within the occlusion is created and the balloon is disposed within the channel of the occlusion; inflating the balloon; deflating the balloon; retracting the catheter, whereby the cage-like structure is deployed within the channel of the occlusion; and maintaining a channel of the occlusion with the cage-like structure.

Claims

1. A neurovascular treatment method, comprising, in combination:

providing a balloon catheter and delivery system to an occlusion lodged above the cerotic artery, wherein said balloon catheter and delivery system comprises, in combination;

a catheter having a proximal end and a distal end, wherein said catheter comprises a delivery lumen, an inflation lumen, and a balloon disposed near said distal end of said catheter; and

an expandable device at least partially disposed within said delivery lumen of said catheter, wherein said expandable device comprises a cage-like structure and a tether;

crossing an occlusion with said catheter, whereby a channel within said occlusion is created and said balloon is disposed within said channel of said occlusion;

inflating said balloon;

deflating said balloon;

retracting said catheter, whereby said cage-like structure is deployed within said channel of said occlusion; and

maintaining said channel of said occlusion with said cage-like structure.

2. The method of claim 1, wherein inflating said balloon enlarges said channel of said occlusion.

3. The method of claim 1, wherein said cage-like structure expands upon retraction of said catheter.

4. The method of claim 1, wherein maintaining said channel of said occlusion provides improved vascular flow.

5. The method of claim 1, wherein maintaining said channel of said occlusion facilitates lysis of said occlusion.

6. The method of claim 1, wherein inflating said balloon is effectuated by provided fluid to said balloon through said inflation lumen.

7. The method of claim 1, further comprising advancing said catheter to recapture said cage-like structure.

8. The method of claim 7, wherein the occlusion is lodged in one of the internal cerotic artery, MCA, ACA, vertical or basilar vessels.

9. A balloon catheter and delivery system, comprising, in combination:

a catheter having a proximal end and a distal end, wherein said catheter comprises a delivery lumen, an inflation lumen, and a balloon disposed near said distal end of said catheter; and

an expandable device at least partially disposed within said delivery lumen of said catheter, wherein said expandable device comprises a cage-like structure and a tether.

10. The system of claim 9, wherein said balloon catheter and delivery system is an over-the-wire (OTW) system.

11. The system of claim 9, wherein said balloon is a PTA balloon.

12. The system of claim 9, wherein said inflation lumen is configured to provide fluid communication between said proximal end of said catheter to said balloon.

13. The system of claim 9, wherein said tether is fixedly attached to said cage-like structure.

14. The system of claim 9, wherein said tether extends through said delivery lumen from said cage-like structure to said proximal end of said catheter.

15. The system of claim 9, for use above the carotid artery.

16. The system of claim 9, for use in the brain.

17. A kit, comprising:

a catheter having a proximal end and a distal end, wherein said catheter comprises a delivery lumen, an inflation lumen, and a balloon disposed near said distal end of said catheter;

an expandable device at least partially disposed within said delivery lumen of said catheter, wherein said expandable device comprises a cage-like structure and a tether; and

directions for use.

18. The kit of claim 17, wherein said delivery lumen is coated with a liner selected from the group of lubricious coating consisting of PTFE, PET, polymers and combination there of.

19. The kit of claim 17, wherein said cage-like structure includes at least one of an everted end and a scalloped end near said tether.

20. The kit of claim 17, wherein said cage-like structure is coated with at least one drug to facilitate lysis of an occlusion.