Catheter with occluding cuff

• US 10,136,906 B2
• Filed: 05/12/2014
• Issued: 11/27/2018
• Est. Priority Date: 07/12/2002
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Kusleika, Richard S.
• Primary Examiner(s): Dang, Anh T
• Application Number:
  US14/274,797
• Publication Number:
  US 20140249569A1
• Time in Patent Office: 1,660 Days
• 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 catheter for use in a medical procedure, the catheter comprising:

an elongate member defining a longitudinal axis; and

a sealing member supported by the elongate member, the sealing member including a frame comprising an interior side facing towards the elongate member and an exterior side facing away from the elongate member, and a membrane positioned on the interior side of the frame, wherein the membrane is fixed to the elongate member and extends continuously around an outer perimeter of the elongate member in a direction transverse to the longitudinal axis, the sealing member being repositionable, while the membrane is fixed to the elongate member, between a first position, wherein a portion of the membrane is separated from the interior side of the frame to permit fluid flow through the sealing member, and a second position, wherein the membrane sealingly engages the interior side of the frame to prevent fluid flow through the sealing member.

2. The catheter of claim 1, wherein the sealing member is normally biased towards the second position.

3. The catheter of claim 1, wherein the membrane is formed from a material impervious to fluid.

4. The catheter of claim 1, wherein the membrane is flexible.

5. The catheter of claim 1, wherein the frame includes a configuration defining a plurality of petals, the plurality of petals defining openings therebetween.

6. The catheter of claim 5, wherein the sealing member is configured such that, when the sealing member is in the first position, fluid flows through the openings defined between petals of the plurality of petals.

7. The catheter of claim 5, wherein the membrane includes a plurality of slots, the plurality of slots being circumferentially offset from the openings defined between petals of the plurality of petals such that the slots are in rotational alignment with the plurality of petals.

8. The catheter of claim 1, wherein the frame includes a first end defining an apex, and a second end defining an opening, the membrane being anchored to the frame at the apex.

9. The catheter of claim 8, wherein the membrane is connected to the frame such that the membrane is displaced radially between the elongate member and the frame as the sealing member repositions between the first and second positions, the membrane moving away from the elongate member and towards the interior side of the frame during repositioning of the sealing member from the first position to the second position, the membrane moving towards the elongate member and away from the interior side of the frame during repositioning of the sealing member from the second position to the first position.

10. A system for occluding fluid flow in a lumen, the system comprising:

a delivery catheter including an elongate member, and a sealing member supported by the elongate member, the sealing member including a frame comprising an interior side facing towards the elongate member and an exterior side facing away from the elongate member, and a membrane positioned on the interior side of the frame, the membrane being biased to self-expand and comprising a proximal end fixed to the elongate member and a distal end defining an opening, wherein the elongate member extends from the proximal end of the membrane through the opening defined by the distal end of the membrane, the sealing member being repositionable, while the proximal end of the membrane is fixed to the elongate member, between a first position, wherein a portion of the membrane is separated from the interior side of the frame to permit fluid flow through the sealing member, and a second position, wherein the membrane sealingly engages the interior side of the frame to prevent fluid flow through the sealing member, the sealing member being biased towards the second position.

11. The system of claim 10, wherein the membrane is formed from a material impervious to fluid.

12. The system of claim 10, wherein the frame includes a configuration defining a plurality of petals, the plurality of petals defining openings therebetween.

13. The system of claim 12, wherein the membrane includes a plurality of slots, the plurality of slots being circumferentially offset from the openings defined between petals of the plurality of petals such that the slots are in rotational alignment with the plurality of petals.

14. The system of claim 13, wherein the frame includes a first end defining an apex, and a second end defining an opening, the membrane being anchored to the frame at the apex.

15. The system of claim 14, wherein the membrane is connected to the frame such that the membrane is displaced radially between the elongate member and the frame as the sealing member repositions between the first and second positions, the membrane moving away from the elongate member and towards the interior side of the frame during repositioning of the sealing member from the first position to the second position, the membrane moving towards the elongate member and away from the interior side of the frame during repositioning of the sealing member from the second position to the first position.

16. The system of claim 10, further comprising a guide catheter including an internal lumen, wherein the delivery catheter is movable through the internal lumen of the guide catheter.

17. A method of occluding fluid flow within a lumen during a surgical procedure, the method comprising:

inserting a guide catheter into the lumen;

moving a delivery catheter through the guide catheter such that a sealing member of the delivery catheter is positioned externally of the guide catheter, the delivery catheter comprising an elongate member defining a longitudinal axis and the sealing member supported by the elongate member, the sealing member including a frame comprising an interior side facing towards the elongate member and an exterior side facing away from the elongate member; and

deploying the sealing member such that the frame of the sealing member engages an inner wall of the lumen, and a fluid-impervious membrane of the sealing member is moved into sealing engagement with the frame to prevent fluid flow through the sealing member, wherein at least a portion of the fluid-impervious membrane is positioned on the interior side of the frame, wherein the fluid-impervious membrane is fixed to the elongate member when the fluid-impervious membrane is moved into sealing engagement with the frame, and wherein the fluid-impervious membrane extends continuously around an outer perimeter of the elongate member in a direction transverse to the longitudinal axis wherein deploying the sealing member includes repositioning the sealing member from a first position, wherein a portion of the membrane is separated from the frame to permit fluid flow though the sealing member, and a second position, wherein the membrane sealingly engages the interior side of the frame.