Tube system for ventilation appliances
First Claim
1. A three-arm tube system for a ventilation appliance suitable for invasive ventilation, wherein the ventilation appliance comprises an active inhalation valve and an active exhalation valve comprising:
- an inhalation tube arm configured for connecting to an inhalation valve of a ventilation appliance;
an exhalation tube arm configured for connecting to the exhalation valve of the ventilation appliance;
a ventilation tube arm configured for connecting on a patient side to a mask or a tubus;
a flow sensor configured to be arranged on the ventilation tube arm for measuring an inhalation volume and an exhalation volume; and
a defined leakage in the ventilation tube arm;
the flow sensor configured to be arranged between the leakage and the mask, or the tubus.
1 Assignment
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Accused Products
Abstract
The invention relates to a three-arm tube system for a ventilation appliance suitable for invasive ventilation. Such a ventilation appliance includes an active inhalation valve and an active exhalation valve. The tube system also includes an inhalation tube arm, an exhalation tube arm and a ventilation tube arm for attachment to a mask, and also a flow sensor. A defined leakage is established in the ventilation tube arm, and the flow sensor is arranged between the leakage and the mask. The invention further relates to a ventilation appliance having such a tube system, and to a method for operating the ventilation appliance.
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Citations
27 Claims
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1. A three-arm tube system for a ventilation appliance suitable for invasive ventilation, wherein the ventilation appliance comprises an active inhalation valve and an active exhalation valve comprising:
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an inhalation tube arm configured for connecting to an inhalation valve of a ventilation appliance; an exhalation tube arm configured for connecting to the exhalation valve of the ventilation appliance; a ventilation tube arm configured for connecting on a patient side to a mask or a tubus; a flow sensor configured to be arranged on the ventilation tube arm for measuring an inhalation volume and an exhalation volume; and a defined leakage in the ventilation tube arm; the flow sensor configured to be arranged between the leakage and the mask, or the tubus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 16)
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9. A ventilation appliance suitable for invasive ventilation, comprising:
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an active exhalation valve, an active inhalation valve, and a three-arm tube system for connecting the inhalation valve and the exhalation valve to a patient'"'"'s mask, or a tubus; a flow sensor arranged adjacent to a patient in a ventilation tube arm; and a defined leakage in the ventilation tube arm directed toward the patient, the flow sensor arranged between the leakage and the mask, or the tubus. - View Dependent Claims (17)
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10. A method for operating a ventilation appliance, comprising:
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supplying ventilation air to a ventilation tube and a ventilation mask adjacent to a patient'"'"'s side, or to a tubus with a ventilation appliance via an actively controlled inhalation valve and an inhalation tube, releasing exhalation air via the ventilation tube, an exhalation tube, and an actively controlled exhalation valve, monitoring a breathing frequency and a breathing volume passing through the ventilation tube with a flow sensor on the patient'"'"'s side of the ventilation tube, controlling a ventilation pressure, end expiratory pressure, ventilation frequency and volume of ventilation air based on parameters supplied by the flow sensor, wherein any leakages possibly present in the tube system are quantifiably determined by a flow quantity measurement in the ventilation appliance, and a flow quantity measurement by means of the flow sensor on the patient'"'"'s side, and are compensated by the ventilation appliance, providing a defined leakage in the ventilation tube on a side of the flow sensor facing away from the patient, and exchanging any gas present in the ventilation tube with the ventilation appliance during a breathing pause between an end of an exhalation phase and a beginning of an inhalation phase by the leakage. - View Dependent Claims (14, 15, 18)
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11. A method for the mechanical ventilation of a patient, having a ventilation appliance suitable for invasive ventilation, comprising:
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monitoring a breathing frequency, ventilation pressure, an end expiratory pressure and a ventilation volume with a flow sensor arranged in a ventilation tube on the patient'"'"'s side, controlling the ventilation pressure, the ventilation volume, and the end expiratory pressure in a patient-oriented manner based on parameters detected by the flow sensor, and with a gas mixer of the ventilation appliance, compensating for any leakages present by actively controlling the gas mixer, the inhalation valve, and the exhalation valve providing a defined leakage in the ventilation tube adjacent to the patient, the defined leakage located on a side of the flow sensor facing away from the patient of the flow sensor in the ventilation tube adjacent to the patient, and partially releasing the exhalation air via the leakage. - View Dependent Claims (12, 13, 19)
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20. A three-arm tube system for a ventilation appliance suitable for invasive ventilation, wherein the ventilation appliance comprises an active inhalation valve and an active exhalation valve comprising:
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an inhalation tube arm configured for connecting to an inhalation valve of a ventilation appliance; an exhalation tube arm configured for connecting to the exhalation valve of the ventilation appliance; a three-way-junction connecting the inhalation tube arm and the exhalation tube arm, and connecting the inhalation tube arm and the exhalation tube arm to a single ventilation tube arm, the ventilation tube arm configured for connecting on a patient side to a mask or a tubus; a flow sensor configured to be arranged on the ventilation tube arm for measuring an inhalation volume and an exhalation volume; and a defined leakage in the ventilation tube arm, the flow sensor configured to be arranged between the leakage and the mask or the tubus. - View Dependent Claims (21)
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22. A ventilation appliance suitable for invasive ventilation, comprising:
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an active exhalation valve; an active inhalation valve; a three-arm tube system for connecting the inhalation valve and the exhalation valve to a three-way-junction and connecting the inhalation valve and the exhalation valve to a ventilation tube arm directed toward a patient'"'"'s mask, or a tubus; a flow sensor arrangeable adjacent to a patient in the ventilation tube arm; and a defined leakage in the ventilation tube arm, the flow sensor arranged between the defined leakage and the mask, or the tubus. - View Dependent Claims (23)
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24. A method for operating a ventilation appliance, comprising:
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supplying ventilation air to a ventilation tube and a ventilation mask adjacent to a patient'"'"'s side, or to a tubus with a ventilation appliance via an actively controlled inhalation valve and an inhalation tube; releasing exhalation air via the ventilation tube, an exhalation tube, and an actively controlled exhalation valve, the inhalation tube and the exhalation tube connected in a Y-junction to the ventilation tube on a side of the ventilation tube facing away from the patient; monitoring a breathing frequency and a breathing volume passing through the ventilation tube with a flow sensor on the patient'"'"'s side of the ventilation tube; controlling a ventilation pressure, end expiratory pressure, ventilation frequency and volume of ventilation air based on parameters supplied by the flow sensor providing a defined leakage in the ventilation tube on a side of the flow sensor facing away from the patient, and exchanging any gas present in the ventilation tube between the leakage and the three-way-junction with the ventilation appliance during a breathing pause between an end of an exhalation phase and a beginning of an inhalation phase by the leakage; wherein any leakages present in the tube system are quantifiably determined by a flow quantity measurement in the ventilation appliance and a flow quantity measurement by the flow sensor on the patient'"'"'s side, and are compensated by the ventilation appliance. - View Dependent Claims (25)
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26. A method for the mechanical ventilation of a patient, having a ventilation appliance suitable for invasive ventilation, comprising:
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monitoring a breathing frequency, ventilation pressure, an end expiratory pressure and a ventilation volume with a flow sensor arranged in a ventilation tube on the patient'"'"'s side of a three-way-junction with an inhalation tube and an exhalation tube; controlling the ventilation pressure, the ventilation volume, and the end expiratory pressure in a patient-oriented manner based on parameters detected by the flow sensor; compensating for any leakages present by actively controlling a gas mixer, the inhalation valve, and the exhalation valve; providing a defined leakage in the ventilation tube adjacent to the patient, the defined leakage located on a side of the flow sensor facing away from the patient and on a side of the three-way-junction facing toward the patient; and partially releasing the exhalation air via the leakage. - View Dependent Claims (27)
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Specification