LUMEN REENTRY DEVICES AND METHODS

• US 20080243065A1
• Filed: 03/30/2008
• Published: 10/02/2008
• Est. Priority Date: 03/29/2007
• Status: Active Grant

• Current Assignee: Boston Scientific Medical Device Limited (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Limited (Boston Scientific Corporation)
• Inventors: Rottenberg, Dan, Zakay, Abi
• Granted Patent: US 8,257,383 B2
• Time in Patent Office: Days
• US Class Current: 604/96.01
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61B 2017/22095 accessing a blood vessel true lumen from the sub-intimal space
• CPC Class Codes: A61B 2017/320048 Balloon dissectors
• CPC Class Codes: A61B 2017/320056 Tunnelers
• CPC Class Codes: A61M 2025/0197 for creating an artificial passage within the body, e.g. in order to go around occlusions
• CPC Class Codes: A61M 2025/1065 having a balloon which is inversely attached to the shaft at the distal or proximal end
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A method including introducing a catheter between two layers of a wall of a body lumen, the catheter including a balloon disposed at a distal end thereof, the catheter being formed with a first lumen through the balloon for passing therethrough a guidewire and a second lumen for inflation and deflation of the balloon, and expanding the balloon so that a distal portion of the first lumen that passes through the balloon is bent with respect to a portion of the first lumen proximal to the balloon and is directed towards the body lumen.

Claims

1. A method comprising:

introducing a catheter between two layers of a wall of a body lumen, said catheter including a balloon disposed at a distal end thereof, said catheter being formed with a first lumen through said balloon for passing therethrough a guidewire and a second lumen for inflation and deflation of said balloon; and

expanding said balloon so that a distal portion of said first lumen that passes through said balloon is bent with respect to a portion of said first lumen proximal to said balloon and is directed towards said body lumen.

2. The method according to claim 1, further comprising passing a guidewire through said first lumen and piercing one of said layers to enter said body lumen.

3. The method according to claim 2, wherein said catheter passes between the two layers of the wall of the body lumen adjacent an occlusion in said body lumen, and the method further comprises first introducing said catheter over said guidewire into said body lumen proximal to said occlusion, dissecting the wall of the body lumen with the guidewire near a proximal end of said occlusion, and passing said guidewire through said first lumen and piercing one of said layers to reenter said body lumen distal to said occlusion.