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1. (EP1023007) BODY FLUID FLOW CONTROL DEVICE

Office : European Patent Office
Application Number: 98944734 Application Date: 04.09.1998
Publication Number: 1023007 Publication Date: 02.08.2000
Publication Kind : B1
Prior PCT appl.: Application Number:US1998018366 ; Publication Number: Click to see the data
IPC:
A61F 2/06
A61F 2/00
A61F 2/24
A61F 2/84
A61F 2/88
A61F 2/90
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02
Prostheses implantable into the body
04
Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
06
Blood vessels
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02
Prostheses implantable into the body
24
Heart valves
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
84
Instruments specially adapted for their placement or removal
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
86
Stents in a form characterised by wire-like elements; Stents in a form characterised by a net-like or mesh-like structure
88
the wire-like elements formed as helical or spiral coils
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
82
Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
86
Stents in a form characterised by wire-like elements; Stents in a form characterised by a net-like or mesh-like structure
90
characterised by a net-like or mesh-like structure
CPC:
A61F 2/2418
A61F 2/0009
A61F 2/0022
A61F 2/2475
A61F 2/88
A61F 2/91
A61F 2/958
A61F 2210/0033
Applicants: PULMONX CORP
Inventors: ZADNO-AZIZI GHOLAM-REZA
FORD JOHN S
MARANO-FORD APRIL
Priority Data: 08931552 16.09.1997 US
9818366 04.09.1998 US
Title: (DE) DURCHFLUSSSTEUERVORRICHTUNG FÜR KÖRPERFLÜSSIGKEITEN
(EN) BODY FLUID FLOW CONTROL DEVICE
(FR) DISPOSITIF DE REGULATION D'ECOULEMENT DE LIQUIDE ORGANIQUE
Abstract: front page image
(EN) The present invention is a device to provide body fluid flow control in the form of a valve to be located within a duct or passageway. The device is controlled through pressure above a preselected threshold. Bulk resilience about a passageway (26) in a valve body (24) provides the mechanism for controlled flow. One-way valve operation may be provided through a flap or through a pressure differential on the valve body (24) depending upon the direction of flow. A frame structure (30) positioned within a resilient seal includes longitudinally elongate elements (34) which may be of spring material, malleable material or heat recoverable material so as to accomplish an initial insertion state, and an expanded anchoring state. A valve support (26) transitions between the resilient seal portion, and the valve body to insure that the states do not change the threshold opening pressure. Insertion devices may be employed to position, and actuate a change of state of the frame in the body duct or passageway.
(FR) La présente invention concerne un dispositif permettant de réguler l'écoulement de liquide organique, se présentant sous la forme d'une valve destinée à être placée à l'intérieur d'un conduit ou d'un passage. Le dispositif est commandé par une pression supérieure à un seuil présélectionné. L'élasticité de la masse du dispositif à l'endroit d'un passage (26) dans un corps (24) de valve crée le mécanisme de régulation d'écoulement. L'actionnement de la valve unidirectionnelle peut être obtenu au moyen d'un clapet ou d'une différence de pression dans le corps (24) de valve, en fonction du sens d'écoulement. Une structure cadre (30) placée à l'intérieure d'un joint d'étanchéité élastique comporte des éléments (34) allongés dans le sens de la longueur, pouvant être constitués d'une matière à effet de ressort, d'une matière malléable ou d'une matière thermoréctactable, de manière à obtenir un premier état d'insertion, et un état d'ancrage dilaté. Un support (26) de valve se trouve entre la partie joint d'étanchéité élastique et le corps de valve de façon à assurer c états ne modifient pas la pression d'ouverture seuil. Des dispositifs d'insertion peuvent être employés pour placer la structure de cadre dans le conduit ou le passage corporel, et pour déclencher un changement d'état dans cette structure.
Also published as:
WO/1999/013801