Nested tubing sections and methods for making same

Details Nested tubing sections and methods for making same Nested tubing sections and methods for making same

1998-08-07

1999-09-21

Stright, Jr., Ronald K.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604103, 604264, 604534, 606194, A61M 2900

Patent

active

059546948

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.

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