Catheter with occluding cuff

• US 20040010282A1
• Filed: 07/12/2002
• Published: 01/15/2004
• Est. Priority Date: 07/12/2002
• Status: Active Grant

• Current Assignee: ev3, Inc. (Medtronic Plc)
• Original Assignee: ev3, Inc. (Medtronic Plc)
• Inventors: Kusleika, Richard S.
• Granted Patent: US 7,166,120 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 method of deploying an embolic protection device carried on an elongate support member at a location distal to a treatment site in a vessel of a patient comprising:

providing a delivery catheter having a distal end and a lumen sized to slideably receive the elongate support member and embolic protection device, the delivery catheter having an elongate tubular shaft encircled by a sealing member, the sealing member being expandable from a delivery configuration to a deployed configuration;

introducing a guide catheter into the vessel;

advancing the guide catheter through the vessel until a distal end of the guide catheter is at a desired location proximal of the treatment site;

advancing the delivery catheter containing the embolic protection device through the lumen of the guide catheter until the sealing member extends from the distal end of the guide catheter;

occluding the flow of blood through the vessel with the sealing member of the delivery catheter in the deployed configuration;

after blood flow has been occluded advancing the embolic protection device to a location distal to the treatment site; and

deploying the embolic protection device.

2. The method of claim 1 wherein the step of advancing the embolic protection device comprises advancing the distal end of the delivery catheter to a position distal of the treatment site and extending the embolic protection device beyond the distal end of the delivery catheter.

3. The method of claim 1 wherein in the step of providing a delivery catheter the sealing member is slideable over a portion of the elongate tubular shaft.

4. The method of claim 1 wherein the step of deploying the embolic protection device comprises deploying a filtration device.

5. The method of claim 1 wherein the step of deploying the embolic protection device comprises deploying an occlusive device.

6. The method of claim 5 wherein the occlusive device is a balloon.

7. The method of claim 1 wherein in the step of providing a delivery catheter the sealing member is cone shaped having an apex pointed towards the distal end of the delivery catheter.

8. The method of claim 1 wherein in the step of providing a delivery catheter the sealing member is bulb shaped.

9. The method of claim 1 wherein in the step of providing a delivery catheter the sealing member is self-expandable.

10. A method of occluding the flow of blood in a vessel of a patient comprising:

introducing a guide catheter into the vessel, the guide catheter having an inner wall defining a lumen extending therethrough;

advancing the guide catheter through the vessel until a distal end of the guide catheter is at a desired location in the vessel;

introducing a sheath into the lumen of the guide catheter, the sheath having an interior surface and an exterior surface, the sheath having a sealing member adjacent the exterior surface;

advancing the sheath through the lumen of the guide catheter until the sealing member extends from a distal end of the guide; and

expanding the sealing member to occlude the flow of blood in the vessel.

11. A delivery catheter for use in delivering an embolic protection device through the lumen of a vessel to a desired location in the vessel comprising:

an elongate sheath having an exterior surface and a distal end, the sheath further having a lumen extending from the distal end to a location proximal of the distal end, the lumen being sized to slidingly accommodate the embolic protection device; and

a sealing member connected to the elongate sheath adjacent the exterior surface, 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.

12. A delivery catheter for use in delivering an embolic protection device through the lumen of a vessel to a desired location in the vessel comprising:

an elongate sheath having an exterior surface and a distal end, the sheath further having a lumen extending from the distal end to a location proximal of the distal end, the lumen being sized to slidingly accommodate the embolic protection device; and

means for effecting a seal between the exterior surface of the elongate sheath and the lumen of the vessel.

13. 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;

a sheath having an interior surface and an exterior surface and being sized to be slidingly accommodated within the lumen of the guide catheter; and

a sealing member connected adjacent the exterior surface of the sheath, the sealing member being expandable from a delivery configuration when the sealing member is accommodated within the lumen of the guide catheter to a deployed configuration when the sealing member is extended beyond the distal end of the guide catheter, the sealing member in its deployed configuration being sized to fill the lumen of the vessel.

14. The system of claim 13, wherein the sealing member, when in the delivery configuration, allows passage of fluid past the sealing member.

15. The system of claim 13, wherein the sealing member is bulb shaped.

16. The system of claim 13, wherein the sealing member, when in the delivery configuration, locks onto the sheath.

17. The system of claim 13, wherein the sealing member is slidable over the exterior surface of the sheath.

18. The system of claim 13, wherein the sealing member is fixed to the exterior surface of the sheath.

19. 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 sheath having an interior surface defining a lumen and an exterior surface and being sized to be slidingly accommodated within the lumen of the guide catheter;

a sealing member connected adjacent the exterior surface of the sheath, the sealing member being expandable from a delivery configuration when the sealing member is accommodated within the lumen of the guide catheter to a deployed configuration when the sealing member is extended beyond the distal end of the guide catheter, the sealing member in its deployed configuration being sized to fill the lumen of the vessel; and

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

20. The system of claim 19, wherein the sealing member, when in the delivery configuration, allows passage of fluid past the sealing member.

21. The system of claim 19, wherein the sealing member is bulb shaped.

22. A method of occluding blood flow through a lumen defined by the inner wall of a vessel of a patient comprising:

providing a delivery catheter having a distal end and a lumen sized to slideably receive the elongate support member and embolic protection device, the delivery catheter having an elongate tubular shaft encircled by a sealing member, the sealing member being expandable from a delivery configuration to a deployed configuration;

introducing a guide catheter into the vessel;

advancing the guide catheter through the vessel until a distal end of the guide catheter is at a desired location proximal of the treatment site;

advancing the delivery catheter containing the embolic protection device through the lumen of the guide catheter until the sealing member extends from the distal end of the guide catheter; and

expanding the sealing member to seal against the wall of the vessel.

23. A method of delivering an embolic protection device carried on an elongate support member to a location distal to a treatment site in a vessel of a patient comprising:

providing a delivery catheter having a distal end and a lumen sized to slideably receive the elongate support member and embolic protection device, the delivery catheter having an elongate tubular shaft encircled by a sealing member, the sealing member being expandable from a delivery configuration to a deployed configuration;

introducing a guide catheter into the vessel;

advancing the guide catheter through the vessel until a distal end of the guide catheter is at a desired location proximal of the treatment site;

advancing the delivery catheter containing the embolic protection device through the lumen of the guide catheter until the sealing member extends from the distal end of the guide catheter;

occluding the flow of blood through the vessel with the sealing member of the delivery catheter in the deployed configuration; and

after blood flow has been occluded advancing the embolic protection device to the location distal to the treatment site.

24. The method of claim 23 wherein the step of advancing the embolic protection device comprises advancing the delivery catheter until the distal end of the delivery catheter is at a position distal to the treatment site and advancing the embolic protection device through the delivery catheter to a position distal to the distal end of the delivery catheter.