Blood oxygenator

Chemical apparatus and process disinfecting – deodorizing – preser – Blood treating device for transfusible blood – Oxygenator

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

128DIG3, 435283, 435 2, A61M 103

Patent

active

041827392

ABSTRACT:
A blood oxygenator wherein blood and oxygen are admixed by flowing blood, into which has been introduced bubbles of oxygen, through a three-dimensional, open cellular mixing material having a substantial void volume. The resulting arterialized blood and blood foam rise to the top of the admixing chamber and are contained in a channel located at the top of the chamber and directed through this channel to the input of a defoamer chamber. A defoamer filter of annular configuration is retained within the defoamer chamber such that the defoamer inlet is located at the top of the defoamer filter within the interior annular space thereof. The blood foam thus enters the interior of the defoamer filter and is distributed over a substantial portion of the defoamer surface and collapsed therein to remove substantially all entrapped gases. The oxygenated defoamed blood collects at the bottom of the defoamer chamber for return to the patient's body. In the preferred embodiment, the defoamer chamber is provided with an unobstructed annular defoamer filter inlet opening for enhanced contacting of the defoaming material by the blood and blood foam while minimizing blood hemolysis, and an integral vent which permits the entrapped gases to be exhausted from the oxygenator either by free flow or by a vacuum source.

REFERENCES:
patent: 2771998 (1956-11-01), Holden
patent: 2833279 (1958-05-01), Gollan
patent: 3171820 (1965-03-01), Volz
patent: 3322411 (1967-05-01), Moore
patent: 3374066 (1968-03-01), Farrant
patent: 3388868 (1968-06-01), Watson et al.
patent: 3413095 (1968-11-01), Bramson
patent: 3468631 (1969-09-01), Raible et al.
patent: 3468631 (1969-09-01), Raible et al.
patent: 3547591 (1970-12-01), Torres
patent: 3578411 (1971-05-01), Bentley
patent: 3729377 (1973-04-01), Leonard
patent: 3769162 (1973-10-01), Brumfield
patent: 3769163 (1973-10-01), Brumfield
patent: 3807958 (1974-04-01), Brumfield et al.
patent: 3827860 (1974-08-01), Burlis
patent: 3870470 (1975-03-01), Yoshida
patent: 3898045 (1975-08-01), Bowley
patent: 3994689 (1976-11-01), DeWall
patent: 3998593 (1976-12-01), Yoshida et al.
patent: 4058369 (1977-11-01), Bentley et al.
patent: 4065264 (1977-12-01), Lewin
patent: 4067696 (1978-01-01), Curtis
DeWall et al., Theme and Variation on Blood Oxygenators, Surgery, Dec. 1961, p. 931.
Hempel, H. W., Design of Artificial Lung Using Polyvinyl Formal Sponge Lance Dec. 1956, p. 1246.
Bencini et al., Preliminary Studies on the Sponge Oxygenators, Surgery, Aug. 1957, p. 342.
Shiley S-100 Oxygenator, Sales Brochure & Operating Instructions.

LandOfFree

Say what you really think

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

Rating

Blood oxygenator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1941034

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