MEDICAL FLUID CONTROL DEVICE FOR MEDICAL FLUID SUPPLY SYSTEM Russian patent published in 2020 - IPC A61M39/22 A61M39/10 F16K11/00 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to a medical device for controlling a fluid for a medical fluid supply system with a fluid medium housing (2, 2b, 2c). Housing is equipped with connecting port (3, 3b, 3c; 4, 4b, 4c) for connection with other functional component of fluid supply system and comprises inlet port (5, 5b, 5c) provided with opening element (7, 7b, 7c), as well as with control element (6, 6a, 6b, 6c). Control element is movably installed in housing (2, 2b, 2c) for fluid medium flow and has sections (9, 9', 10; 9a, 9a', 10a; 10b; 10c) of flow channel, which depending on adjustment position of control element (6, 6a, 6b, 6c) can be provided to at least one connecting port (3, 3b, 3c; 4, 4b, 4c) and inlet port (5, 5b, 5c) to allow fluid flow. With flow control channel section (10, 10a, 10b, 10c) of control element (6, 6a, 6b, 6c) there connected is flow acceleration mechanical device (11, 11a, 11b, 11c), which facilitates flushing of inner side of port (5, 5b, 5c) when fluid medium flows. Mechanical flow acceleration device is formed by pipeline section (11, 11a, 11b, 11c) built into flow section (10, 10a, 10b, 10c), flow cross-section of which is less than cross-section of flow of adjacent and located upstream section (10, 10a, 10b, 10c) of flow channel of control element (6, 6a, 6b, 6c) or connecting port (3, 4; 3b, 4b; 3c, 4c). Annular gap (12, 12a) is provided between the outer wall of pipeline section (11, 11a, 11b, 11c) and the wall of enclosing section (10, 10a, 10b, 10c) of the leak channel, enabling the fluid to flow.

EFFECT: technical result is higher accuracy of drug dosage for patient.

4 cl, 14 dwg