Air separator for extracorporeal fluid treatment sets
First Claim
Patent Images
1. Air separator for extracorporeal fluid treatment sets comprising:
- a first chamber where fluid can be received, the first chamber presenting;
a bottom wall,a top wall,a lateral wall extending between the top and bottom walls,an inlet port and an outlet port associated to the bottom wall and in fluid communication with the first chamber,a first channel extending along at least a portion of the lateral wall and having a first end, directly connected to the inlet port, and a second end terminating in an orifice which is closer to said top wall than to said bottom wall, wherein said first channel has a first portion extending from the first end and at least a second portion terminating at the second end, the second end terminating where the fluid may first flow laterally out of the first channel and into the first chamber, the second portion presenting a flow passage cross section greater than that of the first portion, wherein the configuration of the first channel provides for a speed reduction of flow therethrough.
6 Assignments
0 Petitions
Accused Products
Abstract
An air separator (1) comprises a first chamber (2) where blood or other fluid can be received, an inlet and an outlet port associated to the bottom wall (4) and in fluid communication with the first chamber. A first channel (14) extending along the lateral wall of the separator and has a first and a second portion (16 and 18). The channel second portion (18) terminally forms an orifice (15) facing the chamber and extending in an area closer to a top wall (5) of the chamber (2) than to the bottom wall of the same chamber. The orifice faces the top of the separator and has a flow passage cross section greater than that of a first portion (16) of the channel.
92 Citations
33 Claims
-
1. Air separator for extracorporeal fluid treatment sets comprising:
-
a first chamber where fluid can be received, the first chamber presenting; a bottom wall, a top wall, a lateral wall extending between the top and bottom walls, an inlet port and an outlet port associated to the bottom wall and in fluid communication with the first chamber, a first channel extending along at least a portion of the lateral wall and having a first end, directly connected to the inlet port, and a second end terminating in an orifice which is closer to said top wall than to said bottom wall, wherein said first channel has a first portion extending from the first end and at least a second portion terminating at the second end, the second end terminating where the fluid may first flow laterally out of the first channel and into the first chamber, the second portion presenting a flow passage cross section greater than that of the first portion, wherein the configuration of the first channel provides for a speed reduction of flow therethrough. - 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. Air separator for extracorporeal fluid treatment sets comprising:
-
a first chamber where fluid can be received, the first chamber presenting; a bottom wall, a top wall, a lateral wall extending between the top and bottom walls, an inlet and an outlet port associated to the bottom wall and in fluid communication with the first chamber, a first channel having a first portion connected to the inlet port, and a second portion terminating where the fluid may first flow laterally out of the first channel and into the first chamber, wherein each of the flow passage cross section of the first portion and the flow passage cross section of the second portion are substantially constant and the second portion flow passage cross section is greater than that of the first portion, wherein the configuration of the first channel provides for a speed reduction of flow therethrough. - View Dependent Claims (29, 30, 31)
-
-
32. Air separator for extracorporeal fluid treatment sets comprising:
-
a first chamber where fluid can be received, the first chamber presenting; a bottom wall, a top wall, a lateral wall extending between the top and bottom walls, an inlet port and an outlet port associated to the bottom wall and in fluid communication with the first chamber, a first channel extending along at least a portion of the lateral wall and having a first end, directly connected to the inlet port, and a second end terminating in an orifice which is closer to said top wall than to said bottom wall, wherein said first channel has a first portion extending from the first end and at least a second portion terminating at the second end, the second end terminating where the fluid may first flow laterally out of the first channel and into the first chamber, the second portion presenting a flow passage cross section greater than that of the first portion, wherein the configuration of the first channel provides for a speed reduction of flow therethrough, said air separator comprising at least one item selected from the group consisting of; a venous line which has at least one end designed to be connected to a patient and another end designed to be connected with a blood treatment unit, said venous line including a first flexible tube engaged to the inlet port of the first chamber, a second flexible tube engaged to the outlet port of the first chamber, an arterial line which has at least one end designed to be connected to a patient and another end designed to be connected with a blood treatment unit, said arterial line including a third flexible tube engaged to an inlet port of a second chamber, and a fourth flexible tube engaged to an outlet port of the second chamber and to one wall of said second chamber for forming a loop which is symmetric about a loop axis transverse to the lateral wall of the second chamber.
-
-
33. Blood treatment machine comprising:
-
a dialysis liquid preparation module for preparing dialysis liquid, at least a waste line for receiving spent dialysate, a blood treatment unit having a first treatment chamber connected to the dialysis liquid preparation module and to the waste line, and a second treatment chamber separated from the first treatment chamber by means of a semipermeable membrane, and an air separator for extracorporeal fluid treatment sets comprising; a first chamber where fluid can be received, the first chamber presenting; a bottom wall, a top wall, a lateral wall extending between the top and bottom walls, an inlet port and an outlet port associated to the bottom wall and in fluid communication with the first chamber, a first channel extending along at least a portion of the lateral wall and having a first end, directly connected to the inlet port, and a second end terminating in an orifice which is closer to said top wall than to said bottom wall, wherein said first channel has a first portion extending from the first end and at least a second portion terminating at the second end, the second end terminating where the fluid may first flow laterally out of the first channel and into the first chamber, the second portion presenting a flow passage cross section greater than that of the first portion, wherein the configuration of the first channel provides for a speed reduction of flow therethrough, said air separator comprising at least one item selected from the group consisting of; a venous line which has at least one end designed to be connected to a patient and another end designed to be connected with a blood treatment unit, said venous line including a first flexible tube engaged to the inlet port of the first chamber, a second flexible tube engaged to the outlet port of the first chamber, an arterial line which has at least one end designed to be connected to a patient and another end designed to be connected with a blood treatment unit, said arterial line including a third flexible tube engaged to an inlet port of a second chamber, and a fourth flexible tube engaged to an outlet port of the second chamber and to one wall of said second chamber for forming a loop which is symmetric about a loop axis transverse to the lateral wall of the second chamber, wherein the arterial line is connected to an inlet of the second chamber and the venous line is connected to an outlet of the second chamber.
-
Specification