EP0617630B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Tracheostoma valve
Assignee: Adeva Medical GmbH & Co
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Filing: 1992-12-16
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Granted: 1996-03-27
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Expires: 2012-12-16
Abstract
Abstract A shut-off valve member (1) is capable of shutting off the valve in response to an egressive air thrust. It is proposed to provide the valve with a blow-off valve member (2) of a design such that said valve can open in response to an overpressure in the trachea which exceeds a given value. This blow-off valve member limits the maximum achievable overpressure behind the valve. Coughing is possible without prior operation of the valve and leakage due to excessive overpressure in the trachea is prevented. The valve may contain a tissue connector and a housing to be connected thereto.
Inventors
- 👤 Gijsbertus Jacob Verkerke
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0468; A61F; A61F2/00; A61F2/02; A61F2/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
A tracheostoma valve comprising a shut-off valve member (1) capable of shutting off the valve in response to an air displacement, a blow-off valve member (2) which opens in response to a particular overpressure achieved on one side thereof, characterized in that the blow-off valve member (2) comprises an opening (4) which is closable by the shut-off valve member (1).
Claim 2
Dependent Claim
22 words
A valve according to claim 1, characterized by a magnet closure for holding the blow-off valve member (2) in the closed position.
Claim 3
Dependent Claim
53 words
A valve according to claim 1 or 2, characterized in that a first part (9) of said magnet closure is slidable relative to a second part (10) of said magnet closure in a direction transverse to the opening direction of blow-off valve member (2), for adjusting the effective overlap of the magnet closure.
Claim 4
Dependent Claim
70 words
A valve according to any one of the preceding claims, characterized by a magnet closure for holding the shut-off valve member (1) in the closed position, with a first part (6) of the magnet closure being slidable relative to a second part (7) of said magnet closure, in a direction transverse to the opening direction of the shut-off valve member (1), for adjusting the effective overlap of the magnet closure.
Claim 5
Dependent Claim
23 words
A valve according to any one of the preceding claims, characterized in that said valve has a passage with a substantially rectangular cross-section.
Claim 6
Dependent Claim
32 words
A valve according to any one of the preceding claims, further comprising a housing (13) and a tissue connector (14), with the housing (13) being detachably mounted in the tissue connector (14).
Claim 7
Dependent Claim
28 words
A valve according to claim 6, characterized in that the tissue connector (14) comprises a thin-walled flange (18) of biocompatible material, extending in radial direction around the valve.
Claim 8
Dependent Claim
18 words
A valve according to claim 7, characterized in that the flange (18) is made of coarse-mesh polypropylene gauze.
References Cited (Backward Citations)
No citation records indexed.
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