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1. WO2020112299 - CHECK VALVE WITH INTEGRATED FILTER

Publication Number WO/2020/112299
Publication Date 04.06.2020
International Application No. PCT/US2019/059238
International Filing Date 31.10.2019
IPC
A61M 39/24 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
24Check- or non-return valves
A61M 5/165 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
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
165Filtering accessories, e.g. blood filters, filters for infusion liquids
CPC
A61M 2005/1652
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
165Filtering accessories, e.g. blood filters, filters for infusion liquids
1652Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
A61M 2039/2406
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
2406designed to quickly shut upon the presence of back-pressure
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
A61M 2039/2453
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
2433Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
2446Flexible disc
2453not being fixed to the valve body
A61M 2205/7545
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
2205General characteristics of the apparatus
75with filters
7545for solid matter, e.g. microaggregates
A61M 39/24
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
Applicants
  • CAREFUSION 303, INC. [US]/[US]
Inventors
  • FEITH, Raymond P.
  • MASON, Eugene
Agents
  • HALES, M. Todd
Priority Data
16/205,12229.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CHECK VALVE WITH INTEGRATED FILTER
(FR) CLAPET ANTIRETOUR À FILTRE INTÉGRÉ
Abstract
(EN)
A check valve may include an upper housing defining an inlet, a lower housing defining an outlet, and a cavity interposed between and defined by the upper and lower housings for fluidly connecting the inlet and the outlet. The check valve may further include a flexible valve member mounted in the cavity to selectively permit fluid flow in a first direction, and prevent fluid backflow in a second direction opposite to the first direction. A filter member may be mounted in the upper housing, upstream of the flexible valve member. The filter member may have an elongated portion configured to maximize surface area thereof exposed to the fluid flow, and restrict passage of undesirable matter in fluid flowing through the check valve.
(FR)
L'invention concerne un clapet antiretour pouvant comprendre un boîtier supérieur définissant une entrée, un boîtier inférieur définissant une sortie et une cavité interposée entre les boîtiers supérieur et inférieur et définie par ceux-ci pour relier fluidiquement l'entrée et la sortie. Le clapet antiretour peut en outre comprendre un élément soupape flexible monté dans la cavité pour permettre sélectivement un écoulement de fluide dans un premier sens et pour empêcher un reflux de fluide dans un second sens opposé au premier sens. Un élément filtre peut être monté dans le boîtier supérieur, en amont de l'élément soupape flexible. L'élément filtre peut comporter une partie allongée, conçue pour maximiser la surface de celui-ci exposée au flux de fluide et pour limiter le passage de matière indésirable dans un fluide s'écoulant à travers le clapet antiretour.
Also published as
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