Abstract

A breathing system arranged for a patient to breath through continuously and to inhale a substance from during breathing, comprising: adding means for adding the substance to gas to be inhaled, and control means for pressurising contained gas. The adding means comprises: a reservoir for containing the substance in a liquid form; and vaporisation means for vaporising the substance. The contained gas is linked to the substance in the reservoir to drive the substance to the vaporisation means. The control means comprises a pressure reduction means for enabling loss of the pressurised gas at a rate that is less than a rate at which the control means can pressurise the gas.

IPC Classes  ?

• A61M 16/18 - Vaporising devices for anaesthetic preparations
• A61M 11/04 - Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/20 - Valves specially adapted to medical respiratory devices

Abstract

A breathing system for a patient to inhale a substance from, comprises: a patient airway interface (10) mountable on the patient so that breathing occurs through the patient airway interface; an airway (12) connected or connectable to the patient airway interface to enable inhalation of gas and through which air can be inhaled; adding means for adding (14; 30, 33) a liquid substance to the gas in the airway, wherein vaporisation of the substance is facilitated; a user control (18); a control means (16), the user control being coupled to the control means to provide input thereto, configured to control the adding means. The control means may be configured to store information indicative of a time of received inputs and/or of amounts of the substance to be added, and to control the adding means dependent at least on: a most recently received input received from the user control, and stored information indicative of times of previously received inputs and/or of amounts of the substance added further to the previously received inputs.

IPC Classes  ?

• A61M 15/00 - Inhalators
• A61M 11/04 - Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
• A61M 16/06 - Respiratory or anaesthetic masks

Abstract

A breathing system arranged for a patient to breath through continuously and to inhale a substance from during breathing, comprising: adding means for adding the substance to gas to be inhaled, and control means for pressurising contained gas. The adding means comprises: a reservoir for containing the substance in a liquid form; and vaporisation means for vaporising the substance. The contained gas is linked to the substance in the reservoir to drive the substance to the vaporisation means. The control means comprises a pressure reduction means for enabling loss of the pressurised gas at a rate that is less than a rate at which the control means can pressurise the gas. Alternatively or additionally, flow control means (122) are arranged to restrict the flow of the substance flowing through between the substance reservoir and the vaporisation means.

IPC Classes  ?

• A61M 11/02 - Sprayers or atomisers specially adapted for therapeutic purposes operated by air pressure applied to the liquid to be sprayed or atomised
• A61M 11/04 - Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/18 - Vaporising devices for anaesthetic preparations

Abstract

A breathing system arranged for a patient to breath through continuously and to inhale a substance from during breathing, comprising: adding means for adding the substance to gas to be inhaled, and control means for pressurising contained gas. The adding means comprises: a reservoir for containing the substance in a liquid form; and vaporisation means for vaporising the substance. The contained gas is linked to the substance in the reservoir to drive the substance to the vaporisation means. The control means comprises a pressure reduction means for enabling loss of the pressurised gas at a rate that is less than a rate at which the control means can pressurise the gas. Alternatively or additionally, flow control means (122) are arranged to restrict the flow of the substance flowing through between the substance reservoir and the vaporisation means.

IPC Classes  ?

• A61M 16/18 - Vaporising devices for anaesthetic preparations
• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 11/02 - Sprayers or atomisers specially adapted for therapeutic purposes operated by air pressure applied to the liquid to be sprayed or atomised
• A61M 11/04 - Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised

Abstract

A breathing system for a patient to inhale a substance from, comprises: a patient airway interface (10) mountable on the patient so that breathing occurs through the patient airway interface; an airway (12) connected or connectable to the patient airway interface to enable inhalation of gas and through which air can be inhaled; adding means for adding (14; 30, 33) a liquid substance to the gas in the airway, wherein vaporisation of the substance is facilitated; a user control (18); a control means (16), the user control being coupled to the control means to provide input thereto, configured to control the adding means. The control means may be configured to store information indicative of a time of received inputs and/or of amounts of the substance to be added, and to control the adding means dependent at least on: a most recently received input received from the user control, and stored information indicative of times of previously received inputs and/or of amounts of the substance added further to the previously received inputs.

IPC Classes  ?

• A61M 16/14 - Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
• A61M 16/18 - Vaporising devices for anaesthetic preparations
• A61M 15/00 - Inhalators
• A61M 16/20 - Valves specially adapted to medical respiratory devices
• A61M 16/06 - Respiratory or anaesthetic masks
• A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators Tracheal tubes
• A61M 5/14 - Infusion devices, e.g. infusing by gravityBlood infusionAccessories therefor