Various methods and systems are provided for determining a quality of a medical gas flow. In one example, a method for a medical gas quality monitoring system includes obtaining measurements of a medical gas via a plurality of sensors, the plurality of sensors including at least one of a humidity sensor, a particulate matter sensor, a carbon dioxide sensor, and a total volatile organic compound (tVOC) sensor, determining a gas quality index of the medical gas based on the obtained measurements, and outputting the determined gas quality index.

Concurrent treatment of obstructive sleep apnea and hypertension in a patient, via a pressure generating device, includes providing a flow of treatment gas to an airway of a patient in accordance with an initial set of flow parameters with respect to an obstructive sleep apnea mode. Responsive to determining that the patient has achieved stable breathing while receiving the flow of treatment gas, the flow parameters are increased above the initial set of flow parameters with respect to a hyper-ventilation mode. The flow of treatment gas is then provided to the airway of the patient in accordance with the increased flow parameters for a predetermined period of time. The increased flow parameters are configured to bring the patient's breath into accordance with target patient breath parameters configured to inflate the patient's lungs beyond a threshold for activating pulmonary stretch receptors of the airway of the patient.

Concurrent treatment of obstructive sleep apnea and hypertension in a patient, via a pressure generating device, includes providing a flow of treatment gas to an airway of a patient in accordance with an initial set of flow parameters with respect to an obstructive sleep apnea mode. Responsive to determining that the patient has achieved stable breathing while receiving the flow of treatment gas, the flow parameters are increased above the initial set of flow parameters with respect to a hyper-ventilation mode. The flow of treatment gas is then provided to the airway of the patient in accordance with the increased flow parameters for a predetermined period of time. The increased flow parameters are configured to bring the patient's breath into accordance with target patient breath parameters configured to inflate the patient's lungs beyond a threshold for activating pulmonary stretch receptors of the airway of the patient.

A device for injecting contrast agent includes a supply line with a pressure regulator and leading to a soft injection bag in fluid communication with the supply line and with a catheter. The device also includes a pair of clamping plates acting on the injection bag and arranged on opposite sides of the injection bag. The clamping plates can be moves away from and close to each other. The device also includes a pair of inflatable compression bags. The compression bags are inflated with compressed air and act on corresponding clamping to plates to force the clamping plates to move close to each other and thus compress the injection bag. According to a method of the invention, the injection bag is filled from the source through the pressure regulator and a constant volume load container, and a contrast agent is supplied from the injection bag by gradually compressing the injection bag.

A respiratory mask system is provided. The respiratory mask system has a patient interface that is secured to a user's head by a headgear. The patient interface comprises a seal, a frame and a gas delivery conduit. The frame is configured to secure the seal and gas delivery conduit together. The frame comprises a recessed channel and/or headgear retaining features configured to connect the headgear to the patient interface. The frame can include an inlet collar that connects to a gas delivery conduit. The inlet collar can include bias flow holes. The headgear comprises a top strap, a pair of side arms, a yoke and a rear strap. The yoke is configured to connect to the recessed channel of the frame. The top strap, side arms and yoke form an integrally formed closed loop. The top strap can include two portions adjustably connected to each other.

A respiratory mask system is provided. The respiratory mask system has a patient interface that is secured to a user's head by a headgear. The patient interface comprises a seal, a frame and a gas delivery conduit. The frame is configured to secure the seal and gas delivery conduit together. The frame comprises a recessed channel and/or headgear retaining features configured to connect the headgear to the patient interface. The frame can include an inlet collar that connects to a gas delivery conduit. The inlet collar can include bias flow holes. The headgear comprises a top strap, a pair of side arms, a yoke and a rear strap. The yoke is configured to connect to the recessed channel of the frame. The top strap, side arms and yoke form an integrally formed closed loop. The top strap can include two portions adjustably connected to each other.

Nasal respiratory assembly includes a pair of sheets. Each sheet defines an opening sized and shaped to fit over a nostril of a patient, with a ferromagnetic dome-shaped ring positioned at an underside of the sheet, with an upper side of the sheet configured for sealable engagement with the nostril. The assembly also includes a pair of posts. Each post includes a magnetic ring positioned at a first end and a ball shaped receptacle positioned at a second end. The magnetic ring is removably attachable to the dome-shaped ring. The assembly further includes a pair of conduit adapters with openings therethrough for fluid flow. A post end of each conduit adapter includes a socket, each socket shaped to receive the ball shaped receptacle in a ball and socket arrangement to form a substantially airtight connection therewith.

Nasal respiratory assembly includes a pair of sheets. Each sheet defines an opening sized and shaped to fit over a nostril of a patient, with a ferromagnetic dome-shaped ring positioned at an underside of the sheet, with an upper side of the sheet configured for sealable engagement with the nostril. The assembly also includes a pair of posts. Each post includes a magnetic ring positioned at a first end and a ball shaped receptacle positioned at a second end. The magnetic ring is removably attachable to the dome-shaped ring. The assembly further includes a pair of conduit adapters with openings therethrough for fluid flow. A post end of each conduit adapter includes a socket, each socket shaped to receive the ball shaped receptacle in a ball and socket arrangement to form a substantially airtight connection therewith.

The present technology is directed to ventilator systems that can provide both ventilation therapy and oxygen therapy. The systems described herein may include a ventilation assembly that can provide inspiratory gas to a patient circuit and an oxygen assembly that can provide pulses of oxygen to an oxygen delivery circuit. In some embodiments, the oxygen delivery circuit is distinct from the patient circuit. For example, the patient circuit can include a corrugated conduit coupled a ventilation mask, and the oxygen delivery circuit can include a nasal cannula. The ventilation mask can be positioned over the nasal cannula so that the patient can receive both the inspiratory gases and the pulses of oxygen.

The present technology is directed to ventilator systems that can provide both ventilation therapy and oxygen therapy. The systems described herein may include a ventilation assembly that can provide inspiratory gas to a patient circuit and an oxygen assembly that can provide pulses of oxygen to an oxygen delivery circuit. In some embodiments, the oxygen delivery circuit is distinct from the patient circuit. For example, the patient circuit can include a corrugated conduit coupled a ventilation mask, and the oxygen delivery circuit can include a nasal cannula. The ventilation mask can be positioned over the nasal cannula so that the patient can receive both the inspiratory gases and the pulses of oxygen.