Dialysis catheter having rigid and collapsible lumens and relate

Details Dialysis catheter having rigid and collapsible lumens and relate Dialysis catheter having rigid and collapsible lumens and relate

1996-11-29

1998-09-15

McDermott, Corrine M.

Surgery

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

Material introduced into and removed from body through...

604 43, 604280, A61M 100

Patent

active

058073116

ABSTRACT:
A multiple-lumen catheter includes a first generally-cylindrical flexible lumen extending between a first distal end and a second proximal end; the first lumen is sufficiently rigid to maintain its generally-cylindrical shape when negative pressure is applied thereto for aspirating fluid from the blood vessel. A second flexible lumen also extends between a first distal end and a second proximal end alongside the first lumen. The first distal end of the second lumen is sufficiently pliable to collapse and flatten in the absence of any positive fluid pressure applied to the second lumen; upon the application of a positive fluid pressure to the second lumen, the collapsible first, distal end of the second lumen expands and assumes a generally-cylindrical shape for introducing fluid into the blood vessel. The first collapsible end of the second lumen can extend beyond the-first non-collapsible end of the first lumen for introducing fluid into the blood vessel through the second lumen at a point spaced apart from the first end of the first lumen. In hemodialysis applications, the first lumen is used to aspirate blood, and the second lumen is used to return cleansed blood.

REFERENCES:
patent: Re31873 (1985-04-01), Howes
patent: 4134402 (1979-01-01), Mahurkar
patent: 4385631 (1983-05-01), Uthmann
patent: 4405313 (1983-09-01), Sisley et al.
patent: 4406656 (1983-09-01), Hattler et al.
patent: 4451252 (1984-05-01), Martin
patent: 4543087 (1985-09-01), Sommercorn et al.
patent: 4643711 (1987-02-01), Bates
patent: 4808155 (1989-02-01), Mahurkar
patent: 4995865 (1991-02-01), Gahara et al.
patent: 5066285 (1991-11-01), Hillstead
patent: 5106368 (1992-04-01), Uldall et al.
patent: 5176659 (1993-01-01), Mancini
patent: 5472418 (1995-12-01), Palestrant
"Subclavian Double Lumen Hemodialysis Sets and Trays" Cook Critical Care.

Affiliated with

Also associated with

Rating

Dialysis catheter having rigid and collapsible lumens and relate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dialysis catheter having rigid and collapsible lumens and relate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dialysis catheter having rigid and collapsible lumens and relate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-82707