Hemodialysis cannula for subclavian insertion

A - Human Necessities – 61 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

128/127, 128/81

A61F 7/00 (2006.01) A61M 5/158 (2006.01)

Patent

CA 1092927

ABSTRACT OF THE DISCLOSURE A double lumen cannula for hemodialysis and similar applications such as haemoperfusion comprises elongated flexible tubular members, disposed one within the other, for semi-permanent insertion into the sub-clavian vein of a patient, leaving semi- permanent access thereto for repeated hemodialysis treatments. The cannula is formed of an elongated flexible outer member, having a smooth exterior surface, and made up of an elongated main portion, a convergent, constricting portion and a narrower distal end portion which is tapered at the tip to fit over a Seldinger guide wire. There is also an inner member having a diameter substantially the same as that of the distal end portion. The inner member is insertable into the outer member to come into sealable engagement with the interior walls of the constricting portion, so as to form a continuous inner lumen with the distal end portion of the outer member, and is removable therefrom for removal of clot or replacement purposes. Both members are sufficiently flexible to permit curving thereof on a 12 cm radius without reduction in internal cross section thereof, i.e. without substantial kinking or buckling, so as to avoid constriction of fluid flows. Because the cannula provides two pathways for simultaneous extraction and return of blood there is no need to use a single needle machine to produce an alternating blood flow.

342787

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Hemodialysis cannula for subclavian insertion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hemodialysis cannula for subclavian insertion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hemodialysis cannula for subclavian insertion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-699309

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.