Patent ID: 9474890
Filing Date: 2016-10-25
CPC Classification: A61B,A61M,F16K

Claim Text:
1. A liquid dispensing circuit comprising: a multi-way cock comprised of a tubular cock body and a trunk part, the tubular cock body possessing a lumen, the trunk part being rotatably positioned in the lumen of the tubular cock body to rotate at least from a first rotational position to a second rotational position, the first position being different from the second position; the tubular cock body including opposite axial ends and a circumferential outer surface between the axial ends, the tubular cock body including a plurality of ports projecting outwardly away from the circumferential outer surface of the tubular cock body, the plurality of ports comprising a first port, a second port, a third port, a fourth port, a fifth port and a sixth port; the first port and the second port each possessing a lumen having one end opening to the lumen in the tubular cock body and an opposite end opening outside the tubular cock body; the third port, the fourth port, the fifth port and the sixth port each possessing a lumen having one end opening to the lumen in the tubular cock body and an opposite end opening outside the tubular cock body; the trunk part including a first flow channel configured so that in the first rotational position of the trunk part, one portion of the first flow channel opens to the one end of the first port while an other portion of the first flow channel opens to the one end of the second port so that the first and second ports fluidly communicate with one another by way of the first flow channel, and so that in the second rotational position of the trunk part, the other portion of the first flow channel is spaced from the one end of the second port, and the first and second ports are not in fluid communication with one another by way of the first flow channel; the one portion of the first flow channel and the other portion of the first flow channel being circumferentially spaced from one another; the trunk part also including a second flow channel separate from the first flow channel and axially spaced from the first flow channel, the second flow channel being configured so that: in the second rotational position of the trunk part, a first portion of the second flow channel opens to the one end of the third port, a second portion of the second flow channel opens to the one end of the fourth port and a third portion of the second flow channel opens to the one end of the sixth port so that the third, fourth and sixth ports fluidly communicate with one another by way of the second flow channel; in the first rotational position of the trunk part, the first portion of the second flow channel opens to the one end of the third port, the second portion of the second flow channel opens to the one end of the fourth port and the third portion of the second flow channel opens to the one end of the sixth port so that the third, fourth and sixth ports fluidly communicate with one another by way of the second flow channel; the first portion of the second flow channel, the second portion of the second flow channel and the third portion of the second flow channel being circumferentially spaced from one another; a plurality of tubes each possessing a lumen and connected to a different one of the plurality of ports so that the lumen in each tube is in fluid communication with the respective port; and the plurality of tubes including one tube connected to both the third port and a source of saline to communicate the third port with the source of saline, an other tube connected to both the fifth port and a source of radiopaque material to communicate the fifth port with the source of radiopaque material, and a further tube connected to both the sixth port and a syringe to communicate the sixth port with the syringe.