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1. WO2020117387 - ROTARY VALVES FOR MANAGING FLUID FLOWS IN MEDICAL SYSTEMS

Publication Number WO/2020/117387
Publication Date 11.06.2020
International Application No. PCT/US2019/057775
International Filing Date 24.10.2019
IPC
A61M 39/22 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
39Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
22Valves or arrangement of valves
CPC
A61M 1/1656
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14Dialysis systems; Artificial kidneys; Blood oxygenators; ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris
16with membranes
1654Dialysates therefor
1656Apparatus for preparing dialysates
A61M 1/267
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14Dialysis systems; Artificial kidneys; Blood oxygenators; ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris
16with membranes
26and internal elements; which are moving
267used for pumping
A61M 1/28
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
1Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14Dialysis systems; Artificial kidneys; Blood oxygenators; ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris
28Peritoneal dialysis ; ; Other peritoneal treatment, e.g. oxygenation
A61M 2039/226
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
39Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
22Valves or arrangement of valves
226Spindles or actuating means
A61M 2039/229
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
39Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
22Valves or arrangement of valves
229Stopcocks
A61M 2039/242
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
39Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
22Valves or arrangement of valves
24Check- or non-return valves
242designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
Applicants
  • FRESENIUS MEDICAL CARE HOLDINGS, INC. [US]/[US]
Inventors
  • MOSS, Jon F.
  • EGLEY, Bert D.
Agents
  • KNIGHT, Erin, B.
  • HAMLIN, Michael R.
Priority Data
62/776,58807.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ROTARY VALVES FOR MANAGING FLUID FLOWS IN MEDICAL SYSTEMS
(FR) VALVES ROTATIVES POUR GÉRER DES ÉCOULEMENTS DE FLUIDE DANS DES SYSTÈMES MÉDICAUX
Abstract
(EN)
In one aspect, a valve includes a valve body rotatable about a central axis of the valve body, an interior channel adjacent the valve body for permitting a fluid to flow through an axial opening of the interior channel, and a plug within the interior channel that is movable between a first axial position at the axial opening and a second axial position spaced apart from the axial opening. In the first axial position, the plug closes the axial opening to prevent the fluid from flowing through the axial opening in a first direction and to prevent the fluid from flowing through the axial opening in a second direction that is opposite to the first direction. In the second axial position, the plug permits the fluid to flow through the axial opening into the interior channel in the first direction.
(FR)
Selon un aspect, l'invention concerne une valve qui comprend un corps de valve pouvant tourner autour d'un axe central du corps de valve, un canal intérieur adjacent au corps de valve pour permettre à un fluide de s'écouler à travers une ouverture axiale du canal intérieur, et un bouchon à l'intérieur du canal intérieur qui est mobile entre une première position axiale à l'ouverture axiale et une seconde position axiale espacée de l'ouverture axiale. Dans la première position axiale, le bouchon ferme l'ouverture axiale pour empêcher le fluide de s'écouler à travers l'ouverture axiale dans une première direction et pour empêcher le fluide de s'écouler à travers l'ouverture axiale dans une seconde direction qui est opposée à la première direction. Dans la seconde position axiale, le bouchon permet au fluide de s'écouler à travers l'ouverture axiale dans le canal intérieur dans la première direction.
Latest bibliographic data on file with the International Bureau