Unitary venous return reservoir with cardiotomy filter

Details Unitary venous return reservoir with cardiotomy filter Unitary venous return reservoir with cardiotomy filter

1987-02-09

1988-04-12

Rosenbaum, C. Fred

Surgery

Blood drawn and replaced or treated and returned to body

604 51, 128DIG3, 55178, 210256, 210438, 210458, A61M 3700

Patent

active

047371390

ABSTRACT:
A unitary device for the treatment and collection of blood from two different sources during a surgical procedure comprises a hollow housing made of a rigid, preferably transparent, material, first and second blood inlets in the housing, a first blood treatment element inside the housing comprising a layer of porous defoaming material and a layer of non-woven depth filter material, and a second blood treatment element inside the housing comprising a layer of porous defoaming material and free of any depth filter material. The novel device also includes internal walls for providing two blood flow paths therein, one through the first inlet, the first blood treatment element, a blood collection reservoir defined within the device and a treated blood outlet in the bottom wall of the housing, and the other through the second inlet, the second blood treatment element, the blood collection reservoir and the blood outlet. The latter blood flow path bypasses at least the depth filter material layer of the first blood treatment element. In typical use in an extracorporeal flow circuit, cardiotomy blood is introduced to the first inlet, venous return blood is introduced to the second inlet and the common blood outlet is connected to an extracorporeal blood pump. As a result, passage of the relatively clean venous return blood through a depth filter material is avoided.

REFERENCES:
patent: 3507395 (1970-04-01), Bentley
patent: 3775339 (1973-11-01), Kasulin et al.
patent: 3891416 (1975-06-01), Leonard et al.
patent: 3993461 (1976-11-01), Leonard et al.
patent: 4054523 (1977-10-01), Ingenito et al.
patent: 4094791 (1978-06-01), Conrad
patent: 4344777 (1982-08-01), Siposs
patent: 4490331 (1984-12-01), Steg, Jr.
patent: 4642089 (1987-02-01), Zupkas et al.

Affiliated with

Also associated with

Rating

Unitary venous return reservoir with cardiotomy filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Unitary venous return reservoir with cardiotomy filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unitary venous return reservoir with cardiotomy filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1427107