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1. WO2020112915 - BIDIRECTIONAL MEDICAL VALVES

Publication Number WO/2020/112915
Publication Date 04.06.2020
International Application No. PCT/US2019/063466
International Filing Date 26.11.2019
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
CPC
A61M 2039/027
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
02Access sites
0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
027having a particular valve, seal or septum
A61M 2039/064
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
02Access sites
06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
0633the seal being a passive seal made of a resilient material with or without an opening
064Slit-valve
A61M 2039/066
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
02Access sites
06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
0633the seal being a passive seal made of a resilient material with or without an opening
066Septum-like element
A61M 2039/1072
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
10Tube connectors; Tube couplings
1072with a septum present in the connector
A61M 39/0247
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
02Access sites
0247Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
A61M 39/0613
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
02Access sites
06Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
0613with means for adjusting the seal opening or pressure
Applicants
  • PIPER ACCESS, LLC [US]/[US]
Inventors
  • MUSE, Jay Allen
  • COOK, Kevin Jerry
Agents
  • HIGGS, Daniel C.
Priority Data
62/771,37526.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BIDIRECTIONAL MEDICAL VALVES
(FR) VALVES MÉDICALES BIDIRECTIONNELLES
Abstract
(EN)
A medical valve can include a housing that includes a sidewall and defines a chamber. The medical valve can include a septum coupled to the housing. The septum can include a proximal surface and a selectively openable closure positioned within the chamber. The medical valve can further include a plurality of projections that extend away from the sidewall and are configured to contact the proximal surface of the septum to oppose movement of a restricted portion of the septum in a proximal direction such that an aspiration cracking pressure required to open the closure to permit fluid flow through the septum in the proximal direction exceeds an infusion cracking pressure required to open the closure to permit fluid flow through the septum in the distal direction.
(FR)
Une valve médicale peut comprendre un boîtier qui comporte une paroi latérale et définit une chambre. La valve médicale peut comprendre un septum accouplé au boîtier. Le septum peut comprendre une surface proximale et une fermeture pouvant être ouverte de manière sélective, positionnée à l'intérieur de la chambre. La valve médicale peut en outre comprendre une pluralité de saillies qui s'étendent à l'opposé de la paroi latérale et qui sont configurées pour entrer en contact avec la surface proximale du septum pour s'opposer au mouvement d'une partie restreinte du septum dans une direction proximale, de telle sorte qu'une pression d'ouverture d'aspiration requise pour ouvrir la fermeture afin de permettre l'écoulement de fluide à travers le septum dans la direction proximale, dépasse une pression d'ouverture de perfusion requise pour ouvrir la fermeture afin de permettre l'écoulement de fluide à travers le septum dans la direction distale.
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