Multilumen catheter for minimizing limb ischemia

• US 20060264689A1
• Filed: 05/03/2006
• Published: 11/23/2006
• Est. Priority Date: 06/06/2001
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories Incorporated)
• Original Assignee: ORQIS Medical Corporation
• Inventors: Werner, Wolfgang, Beizai, Masoud, Bolling, Steven F., Pecor, Robert, Sirimanne, Laksen, Viole, Anthony, Kelly, Ryan, O'Leary, Shawn
• Granted Patent: US 7,491,163 B2
• Time in Patent Office: Days
• US Class Current: 600/8
• CPC Class Codes: A61M 1/3613 Reperfusion, e.g. of the coronary vessels, e.g. retroperfusion
• CPC Class Codes: A61M 1/3653 Interfaces between patient blood circulation and extra-corporal blood circuit
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 2025/0025 having a collapsible lumen
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0039 characterized by lumina being arranged coaxially
• CPC Class Codes: A61M 2025/0073 Tip designed for influencing the flow or the flow velocity of the fluid, e.g. inserts for twisted or vortex flow general flow characteristics A61M2206/10
• CPC Class Codes: A61M 2025/1095 with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067
• 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 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0071 Multiple separate lumens multiple separate lumens throughout the catheter A61M25/0026
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/152 branching on and drawing blood from a blood vessel
• CPC Class Codes: A61M 60/205 Non-positive displacement blood pumps
• CPC Class Codes: A61M 60/857 Implantable blood tubes
• CPC Class Codes: A61M 60/867 using position detection during deployment, e.g. for blood pumps mounted on and driven through a catheter

Abstract

A multilumen catheter that maximizes the blood flow into and out of the patient'"'"'s vasculature while also providing for passive and/or active perfusion of tissue downstream of where the catheter resides in the vasculature. The inventive catheter comprises a proximal end, a first distal and a second distal end with first and second lumens extending from the proximal end to each of these distal ends to provide for blood circulation within one blood vessel or between two different blood vessels. The second lumen, and any additional lumens so desired, may be positioned coaxially with or radially around the first lumen. Redirecting means is provided at a distal end of at least one of said lumens for directing blood in a direction generally opposite of the direction of flow through said lumen.

Claims

1. A method of treating a patient comprising:

providing a multilumen catheter, said catheter comprising;

a catheter body having a proximal end, a first distal end, and a second distal end, said first distal end extending distally farther from the proximal end than the second distal end;

a first lumen extending between said first distal end and said proximal end;

a second lumen extending between said second distal end and said proximal end, said second lumen in fluid communication with said first lumen at the proximal end; and

inserting said multilumen catheter into the patient minimally invasively such that the first distal end is at a first vascular and the second distal end is at a second vascular location remote from the first vascular location;

causing blood to flow in said second lumen to said proximal end and to flow distally from the proximal end in said first lumen without exiting said catheter body; and

redirecting substantially all of the blood flow exiting the first lumen in a direction generally opposite of the direction of flow in the first lumen.

2. The method of claim 1, further comprising providing a tip portion having a surface positioned at the distal end of and within the first lumen, the surface configured to redirect substantially all the blood flow exiting the first lumen.