Nested tubing sections and method for making same

• US 6,827,711 B2
• Filed: 11/29/2001
• Issued: 12/07/2004
• Est. Priority Date: 08/07/1998
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Sunseri, Gary
• Primary Examiner(s): Bianco, Patricia
• Application Number:
  US09/997,824
• Publication Number:
  US 20020036058A1
• Time in Patent Office: 1,104 Days
• Field of Search: 604/4.01, 604/6.16, 604/28, 604/500, 604/506-509, 604/513, 604/96.01, 604/97.01, 604/98.01, 604/97.02, 604/102-1-1, 604/104, 604/103.03, 604/164.09, 604/164.1, 604/164.11, 604/264, 604/278, 604/523, 604/532, 128/898, 600/433, 600/435, 606/191, 606/192, 606/194, 606/200, 138/89, 138/94, 138/118, 138/120, 138/128, 138/140, 138/141, 138/148, 264/176.1, 264/156, 264/171.12, 264/209.1
• US Class Current: 604/509
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0045 multi-layered, e.g. coated coating materials A61L29/08
• 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 25/1027 Making of balloon catheters
• CPC Class Codes: A61M 25/1036 Making parts for balloon catheter systems, e.g. shafts or distal ends A61M25/1029 takes precedence
• CPC Class Codes: Y10T 156/1057 Subsequent to assembly of laminae

Abstract

The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.

Claims

1. A method for occluding a vessel comprising the steps of:

providing a cannula comprising;

an outer elongate tubular member having a proximal end, a distal end, and a lumen therebetween;

an inner elongate tubular member having a proximal end, a distal end and a lumen therebetween, the inner elongate tubular member being nested within the lumen of the outer elongate tubular member;

a seal disposed between and binding the outer and inner tubular members; and

a balloon on the outer tubular member;

inserting the cannula into a vessel; and

inflating the balloon so that it occludes the vessel.

2. The method of claim 1, wherein the balloon defines an inflatable chamber, the chamber communicating with the lumen of the inner tubular member by a channel which passes radially through the inner tubular member, the tubular sleeve, and the outer tubular member.

3. The method of claim 1, further comprising the steps of:

inserting a filter into the cannula; and

advancing the filter through the cannula and into the blood vessel.

4. The method of claim 1, wherein the vessel is an artery.

5. The method of claim 1, wherein the vessel is an aorta.

6. The method of claim 1, wherein the outer elongate tubular member further comprises a drug delivery port, and wherein the method further comprises the step of introducing a drug through the port.

7. The method of claim 6, wherein the drug is cardioplegia solution.

8. The method of claim 6, wherein the drug delivery port is proximal the balloon.

9. The method of claim 6, wherein the drug delivery port is downstream the balloon.

10. The method of claim 1, wherein the distal end of the tubular member is angulated relative to the proximal end.

11. The method of claim 1, wherein the inner elongate tubular member is nested substantially coaxially within the lumen of the outer elongate tubular member.

12. The method of claim 1, wherein the inner tubular member is nested within the outer tubular member such that a gap exists between the inner tubular member and the outer tubular member that defines a second lumen.

13. The method of claim 1, wherein the seal is a tubular sleeve disposed coaxially between the outer and inner tubular members.

14. The method of claim 1, wherein the balloon is mounted on the distal region of the outer tubular member.

15. The method of claim 1, wherein the seal is disposed between the outer and inner tubular members at the distal end thereof.