CATHETER WITH OCCLUDING CUFF

• US 20110130784A1
• Filed: 02/01/2011
• Published: 06/02/2011
• Est. Priority Date: 07/12/2002
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: ev3, Inc. (Medtronic Plc)
• Inventors: Kusleika, Richard S.
• Granted Patent: US 8,721,674 B2
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0071 spherical
• CPC Class Codes: A61F 2230/008 paraboloidal

Abstract

A device, method, and system of deploying an embolic protection device at a location distal to a treatment site in a vessel of a patient. A delivery catheter is encircled by a sealing member which is expandable from a delivery configuration to a deployed configuration. The device creates a seal to prevent the flow of blood during the treatment of vascular disease. A distal protection element is delivered by the delivery catheter and deployed to filter or remove embolic debris.

Claims

1. A delivery catheter for use in occluding the flow of blood in the lumen of a vessel of a human vascular system comprising:

an elongate tubular shaft encircled by a sealing member, the elongate tubular shaft having a distal end and a lumen extending from the distal end to a location proximal of the distal end, the sealing member being expandable from a delivery configuration to a deployed configuration, the sealing member in its deployed configuration being sized to fill the lumen of the vessel, the sealing member being disposed on and carried by the elongate tubular shaft, the elongate tubular member being able to slide through and be advanced through a portion of the sealing member while the sealing member is in its deployed configuration and contacting the lumen of the vessel, the sealing member having a proximal end and a distal end, both the proximal and distal ends of the sealing member being slideable relative to the elongate tubular shaft, and the distal end of the elongate tubular shaft being the distal end of the delivery catheter.

2. The delivery catheter of claim 1, wherein in the deployed configuration the sealing member is cone shaped having an apex pointed towards the distal end of the delivery catheter.

3. The delivery catheter of claim 1, wherein in the deployed configuration the sealing member is bulb shaped.

4. The delivery catheter of claim 1, wherein the sealing member is self-expandable.

5. The delivery catheter of claim 1, wherein in the delivery configuration the sealing member locks onto the elongate tubular shaft.

6. A system for occluding the flow of blood in the lumen of a vessel of a human vascular system comprising:

a guide catheter having proximal and distal ends and a lumen; and

a delivery catheter comprising an elongate tubular shaft encircled by a sealing member, the elongate tubular shaft having a distal end and a lumen extending from the distal end to a location proximal of the distal end, the sealing member being expandable from a delivery configuration to a deployed configuration, the sealing member in its deployed configuration being sized to fill the lumen of the vessel, the sealing member being disposed on and carried by the elongate tubular shaft, the elongate tubular member being able to slide through and be advanced through a portion of the sealing member while the sealing member is in its deployed configuration and contacting the lumen of the vessel, the sealing member having a proximal end and a distal end, both the proximal and distal ends of the sealing member being slideable relative to the elongate tubular shaft, and the distal end of the elongate tubular shaft being the distal end of the delivery catheter.

7. The system of claim 6, wherein in the deployed configuration the sealing member is cone shaped having an apex pointed towards the distal end of the delivery catheter.

8. The system of claim 6, wherein in the deployed configuration the sealing member is bulb shaped.

9. The system of claim 6, wherein the sealing member is self-expandable.

10. The system of claim 6, wherein in the delivery configuration the sealing member locks onto the elongate tubular shaft.

11. A system for protecting a patient from emboli released during an intravascular procedure performed at a treatment site in a vessel of a patient comprising:

a guide catheter having proximal and distal ends and a lumen;

a delivery catheter comprising an elongate tubular shaft encircled by a sealing member, the elongate tubular shaft having a distal end and a lumen extending from the distal end to a location proximal of the distal end, the sealing member being expandable from a delivery configuration to a deployed configuration, the sealing member in its deployed configuration being sized to fill the lumen of the vessel, the sealing member being disposed on and carried by the elongate tubular shaft, the elongate tubular member being able to slide through and be advanced through a portion of the sealing member while the sealing member is in its deployed configuration and contacting the lumen of the vessel, the sealing member having a proximal end and a distal end, both the proximal and distal ends of the sealing member being slideable relative to the elongate tubular shaft, and the distal end of the elongate tubular shaft being the distal end of the delivery catheter; and

an embolic protection device sized to be delivered through the lumens of the guide catheter and the delivery catheter to a location in the vessel distal to the treatment site.

12. The system of claim 11, wherein in the deployed configuration the sealing member is cone shaped having an apex pointed towards the distal end of the delivery catheter.

13. The system of claim 11, wherein in the deployed configuration the sealing member is bulb shaped.

14. The system of claim 11, wherein the sealing member is self-expandable.

15. The system of claim 11, wherein in the delivery configuration the sealing member locks onto the elongate tubular shaft.

16. The system of claim 11, wherein the embolic protection device is a filtration device.

17. The system of claim 11, wherein the embolic protection device is an occlusive device.