Multi-lumen catheter

• US 6,482,171 B1
• Filed: 01/13/1997
• Issued: 11/19/2002
• Est. Priority Date: 07/16/1991
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences LLC (Edwards Lifesciences Corporation)
• Original Assignee: Heartport, Inc. (Johnson & Johnson)
• Inventors: Corvi, Timothy J., Stevens, John H.
• Primary Examiner(s): Kennedy, Sharon
• Application Number:
  US08/782,113
• Time in Patent Office: 2,136 Days
• Field of Search: 604/282, 604/264, 604/280, 604/96, 604/925, 604/526, 604/527, 604/530-532, 604/96.01, 604/97.01, 156/166, 156/172, 156/176, 156/175, 156/293, 156/294
• US Class Current: 604/96.01
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2018/00232 having an irregular shape
• CPC Class Codes: A61B 2018/00261 arranged in a line
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/306 using optical fibres
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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 2025/0002 with a pressure sensor at the distal end
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores
• CPC Class Codes: A61M 2025/0046 Coatings for improving slidability
• CPC Class Codes: A61M 2025/0078 for fluid inflow from the body into the catheter lumen
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 2025/1047 having centering means, e.g. balloons having an appropriate shape
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/1077 having a system for expelling the air out of the balloon before inflation and use
• 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 2202/047 : cardioplegic
• CPC Class Codes: A61M 2205/11 : with means for preventing cross-contamination when used for multiple patients
• CPC Class Codes: A61M 2205/366 : by liquid heat exchangers
• CPC Class Codes: A61M 2210/125 : Heart
• CPC Class Codes: A61M 2210/127 : Aorta
• CPC Class Codes: A61M 25/0009 : Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0012 : with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
• CPC Class Codes: A61M 25/0032 : characterized by at least one unconventionally shaped lumen, e.g. polygons, ellipsoids, wedges or shapes comprising concave and convex parts
• CPC Class Codes: A61M 25/0041 : pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0045 : multi-layered, e.g. coated coating materials A61L29/08
• CPC Class Codes: A61M 25/005 : with embedded materials for reinforcement, e.g. wires, coils, braids
• CPC Class Codes: A61M 25/0054 : with regions for increasing flexibility
• CPC Class Codes: A61M 25/0125 : Catheters carried by the bloodstream, e.g. with parachutes; Balloon catheters specially designed for this purpose
• CPC Class Codes: A61M 25/0133 : Tip steering devices
• CPC Class Codes: A61M 25/0662 : Guide tubes
• CPC Class Codes: A61M 25/10 : Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1002 : characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1027 : Making of balloon catheters

Abstract

A multi-lumen catheter having a reinforcing member wrapped around at least one of the lumens in a helical manner. An inflation lumen is positioned outside the reinforcing member for inflating a balloon carried by the catheter. A two-lumen extrusion is bonded to the reinforced lumen to form the multi-lumen catheter. The multi-lumen catheter is particularly useful as an aortic occlusion catheter.

Claims

1. A method of forming a catheter for occluding a patient'"'"'s ascending aorta and delivering cardioplegic fluid to the patient'"'"'s heart, comprising the steps of:

providing a single integrally formed structure having a first lumen and a second lumen, the first lumen having a cross-sectional size of 0.00754 to 0.01053 inch²;

winding a helical reinforcing member around the single integrally formed structure, the helical reinforcing member having a thickness of between 0.006 and 0.012 and a height of between 0.002 and 0.004 inch;

positioning an outer wall around the helical reinforcing member, the outer wall having an outer diameter of 0.131 to 0.140 inch;

attaching an occluding member to the outer wall, the occluding member being movable from a collapsed condition to an expanded condition, the occluding member being configured to occlude a patient'"'"'s ascending aorta when in the expanded condition.

2. The method of claim 1, wherein:

the second lumen has a cross-sectional size of 0.00095 to 0.0015 inch².