Degassing device and end-cap assembly for a filter including such a degassing device
First Claim
Patent Images
1. A degassing device, comprising:
- a first chamber having an inlet for a liquid; and
a second chamber having;
an opening closed by a hydrophobic membrane;
a liquid inlet port for the infusion of the liquid, andan outlet for discharging the liquid,wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and the second chamber has a downstream portion that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber andwherein the downstream portion of the second chamber has a first lateral wall surrounding a longitudinal axis of the degassing device and a bottom wall inclined with respect to the longitudinal axis.
3 Assignments
0 Petitions
Accused Products
Abstract
A degassing device (203) comprises a first chamber (21) having an inlet for a liquid, and a second chamber (22) having an opening (23) closed by a hydrophobic membrane (24) and an outlet (25) for discharging the liquid. The first chamber (21) has a downstream portion that partially extends within the second chamber (22) and communicates therewith by a passageway (28). The second chamber (22) has a downstream portion that extends below the passageway (28) and asymmetrically surrounds the downstream portion of the first chamber (21).
-
Citations
39 Claims
-
1. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; a liquid inlet port for the infusion of the liquid, and an outlet for discharging the liquid, wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and the second chamber has a downstream portion that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber and wherein the downstream portion of the second chamber has a first lateral wall surrounding a longitudinal axis of the degassing device and a bottom wall inclined with respect to the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an upper opening closed by a hydrophobic membrane; and an outlet for discharging the liquid, wherein the outlet is at a higher elevation than the inlet of the first chamber, wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, the second chamber has a downstream portion that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber, wherein the outlet is in the downstream portion;
the downstream portion has a lateral wall that surrounds a longitudinal axis of the first chamber and the downstream portion has a bottom wall that is inclined with respect to a longitudinal axis of the degassing device.
-
-
32. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an upper opening closed by a hydrophobic membrane; an outlet for discharging the liquid, wherein the outlet is at a higher elevation than the inlet of the first chamber; and a wall delimiting the second chamber from the first chamber, wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway that opens in the second chamber close to an upper rim of the wall, the downstream portion of the first chamber is substantially frusto-conical, and the second chamber has a downstream portion that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber, and the outlet is in the downstream portion of the second chamber. - View Dependent Claims (39)
-
-
33. A degassing device, comprising:
-
a first chamber having an inlet for a blood liquid; and a second chamber having; an opening closed by a hydrophobic membrane; and an outlet for discharging the blood liquid, at an elevation above the elevation of the first chamber; wherein the first chamber has a downstream portion that partially extends within an upstream portion of the second chamber and communicates therewith by a passageway, the upstream portion of the second chamber extends above the passageway and has a decreasing cross-section, with a larger cross-section that is substantially level with the passageway and a smaller cross-section that is substantially level with the hydrophobic membrane, and the second chamber has a downstream portion which includes the outlet and that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber.
-
-
34. A degassing devices, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; and an outlet for discharging the liquid, which is at a higher elevation than the inlet, wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and a ratio of a diameter of the passageway to a diameter of the second chamber at a level of the passageway is comprised between about 0.2 and about 0.5.
-
-
35. A degassing devices, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; and a liquid inlet to receive another liquid to mix with the liquid in the second chamber; an outlet for discharging the liquid, at a higher elevation than the inlet to the first chamber; wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and the downstream portion of the first chamber has a cross-section selected with respect to a maximal flow rate of a liquid in a circuit connected to the degassing device so that a velocity of the liquid in the downstream portion of the first chamber is less than a predetermined velocity.
-
-
36. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; a liquid inlet to receive another liquid to mix with the liquid in the second chamber, and an outlet for discharging the liquid, which is at a higher elevation than the inlet to the first chamber; wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and a cross-section of the second chamber of the degassing device at the level of the passageway is selected so that a ratio of a velocity of a liquid within a downstream portion of the first chamber to a velocity of the liquid within the second chamber at a level of the passageway is more than a determined value.
-
-
37. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; and an outlet for discharging the liquid, which is at a higher elevation than the inlet of the first chamber; wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, the second chamber has a downstream portion that extends below the passageway and asymmetrically surrounds the downstream portion of the first chamber, and the first chamber, the second chamber and the passageway therebetween are arranged with respect to each other so that a flow pattern of a liquid flowing from the first chamber, through the second chamber and to the outlet comprises a component that is tangential to the membrane.
-
-
38. A degassing device, comprising:
-
a first chamber having an inlet for a liquid; and a second chamber having; an opening closed by a hydrophobic membrane; and an outlet for discharging the liquid, wherein the outlet is at a higher elevation than the inlet, wherein the first chamber has a downstream portion that partially extends within the second chamber and communicates therewith by a passageway, and the first chamber, the second chamber and the passageway therebetween are arranged with respect to each other so that a flow of liquid flowing from the first chamber, through the second chamber and to the outlet port keeps gas bubbles in motion along an inner surface of the hydrophobic membrane.
-
Specification