US 2021/0196913 A1 · VENTILATOR AND PROCESS FOR OPERATING A VENTILATOR

Abstract

A respiratory device (10) includes at least one expiration valve (12) and/or at least one inspiration valve (14) with a valve drive (18) that is configured to influence a position of a closure element (20) of each valve (12, 14). A method for operating such a respiratory device (10) is also provided. The valve drive (18) acts on a valve chamber (24) and a volume in the valve chamber (24) determines the position of the closure element (20). The valve drive (18) includes a plurality of piezo pumps (40, 42), with at least one regular piezo pump (40) with a direction of action towards the valve chamber (24) and at least one inverse piezo pump (42) with a reverse direction of action.

Claims20

Dependent claims

A ventilator comprising at least one exhalation and/or inhalation valve comprising:

a valve drive;
and
a closing body, wherein
the valve drive is configured to influence a position of the closing body;
the valve drive is configured to act on a valve chamber;
a volume within the valve chamber determines the position of the closing body;
and
the valve drive comprises a plurality of piezo pumps, including at least one piezo pump with a direction of action towards the valve chamber and at least one piezo pump with a direction of action away from the valve chamber.

5 more elements

A ventilator comprising:

a valve comprising:
a closing body and a valve chamber partially defined by the closing body, a volume within the valve chamber determining a position of the closing body;
and
a valve drive configured to influence a position of the closing body by acting on the valve chamber, the valve drive comprising a plurality of piezo pumps, including at least one piezo pump with a direction of action towards the valve chamber and at least one piezo pump with a direction of action away from the valve chamber;
and
a control unit configured to control the at least one piezo pump with a direction of action away from the valve chamber to actively open the valve.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/057,785Filed 9 Apr 2019

Priority

DE 10 2018 004 341.031 May 2018

Published

1 Jul 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61M 16/024
Control means therefor: including calculation means, e.g. using a processor
A61M 16/0057
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: pumps therefor
A61M 16/20
Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators ; Tracheal tubes: valves specially adapted to…
A61M 16/204
Proportional: used for inhalation control

Ventilator and process for operating a ventilator

Life of this patent

Ventilator and process for operating a ventilator

Life of this patent

Abstract

Claims20