Debubblers
First Claim
1. Apparatus for removing air bubbles from blood, comprising:
- a front cover;
a rear cover;
a microporous membrane;
a fluid circuit board between said front and rear covers and having front and rear opposite surfaces facing said front and rear covers, respectively, said fluid circuit board and said front cover cooperating to define a blood chamber between said front surface and said front cover, said fluid circuit board further comprising a microporous membrane opening having an adjacent mounting surface for mounting said microporous membrane to said fluid circuit board, said rear cover and said rear surface or said fluid circuit board cooperating to define an air chamber between said rear surface and said rear cover, said microporous membrane separating said blood chamber from said air chamber;
support means for supporting said microporous membrane from the air chamber side of said membrane;
a pressure sensor within said front and rear covers for measuring the blood pressure in said blood chamber;
a blood inlet port and a blood outlet port for conducting blood to and from said blood chamber, andan air port in communication with said air chamber allowing gasses passing through said microporous membrane from said blood chamber to escape.
5 Assignments
0 Petitions
Accused Products
Abstract
Apparatus for removing air bubbles from blood and from a dialysate solution are described herein. In one cassette-style embodiment of a blood debubbler, the debubbler includes front and rear covers, a fluid circuit board between the front and rear covers and defining a blood chamber between the fluid circuit board and the front cover and an air chamber between the fluid circuit board and the rear cover, and a microporous membrane separating the blood chamber from the air chamber. A support means is provided for supporting the microporous membrane from the air side of the membrane. A pressure sensor is provided within the front and rear covers for measuring the blood pressure in the blood chamber. The debubbler has a blood inlet port and a blood outlet port for conducting blood to and from the blood chamber. An air port is provided in communication with the air chamber, which allows for air passing through the microporous membrane to escape.
148 Citations
4 Claims
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1. Apparatus for removing air bubbles from blood, comprising:
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a front cover; a rear cover; a microporous membrane; a fluid circuit board between said front and rear covers and having front and rear opposite surfaces facing said front and rear covers, respectively, said fluid circuit board and said front cover cooperating to define a blood chamber between said front surface and said front cover, said fluid circuit board further comprising a microporous membrane opening having an adjacent mounting surface for mounting said microporous membrane to said fluid circuit board, said rear cover and said rear surface or said fluid circuit board cooperating to define an air chamber between said rear surface and said rear cover, said microporous membrane separating said blood chamber from said air chamber; support means for supporting said microporous membrane from the air chamber side of said membrane; a pressure sensor within said front and rear covers for measuring the blood pressure in said blood chamber; a blood inlet port and a blood outlet port for conducting blood to and from said blood chamber, and an air port in communication with said air chamber allowing gasses passing through said microporous membrane from said blood chamber to escape. - View Dependent Claims (2, 3, 4)
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Specification