Percutaneous filtration catheter for valve repair surgery

• US 6,287,321 B1
• Filed: 11/16/1999
• Issued: 09/11/2001
• Est. Priority Date: 10/13/1998
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Embolx, Inc.
• Inventors: Jang, Yue-Teh
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US09/441,707
• Time in Patent Office: 665 Days
• Field of Search: 606/200, 606/194, 606/191, 604/96
• US Class Current: 606/200
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/22062 to be filled with liquid
• CPC Class Codes: A61B 2017/22067 Blocking; Occlusion A61B2017/22054 takes precedence
• CPC Class Codes: A61B 2017/22069 Immobilising; Stabilising
• 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 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 2230/0093 Umbrella-shaped, e.g. mushroom-shaped

Abstract

A percutaneous filtration catheter used to entrap emboli from a patient'"'"'s aorta and heart during cardiac surgery. The catheter has an elongate member, a proximal end, and a distal end. A balloon occluder is mounted on the distal end of the elongate member and an expandable filter is mounted on the elongate member distal the balloon occluder. Methods for using the devices are also disclosed herein.

Claims

1. A percutaneous filtration catheter, comprising:

an elongate member having a proximal end and a distal end;

a balloon occluder mounted on the distal end of the elongate member, the balloon defining a chamber which communicates with a lumen carried by the elongate member; and

an expandable filter mounted on the elongate member distal the balloon occluder, the expandable filter operable independently of the balloon occluder, the filter having a proximal edge that is fixed to the elongate member, and a distal edge that opens when the filter is operated.

2. The catheter of claim 1, wherein the balloon occluder comprises an elastomeric balloon.

3. The catheter of claim 1, further comprises a second lumen for infusion of fluid.

4. The catheter of claim 3, wherein the second lumen is adapted to receive a pressure monitor.

5. The catheter of claim 1, wherein the expandable filter is operable from the proximal end of the elongate member.

6. The catheter of claim 1, wherein the expandable filter further comprises an expansion frame.

7. The catheter of claim 6, wherein the expansion frame comprises an umbrella frame.

8. The catheter of claim 6, wherein the expansion frame comprises an inflation seal.

9. The catheter of claim 1, wherein the expandable filter is operable by manipulating at least one pull string.

10. The catheter of claim 1, wherein the expandable filter has a proximal edge bonded circumferentially and continuously to the elongate member, and a distal edge which expands radially on activation.