Abstract: A humidification system can include a heater base, a chamber, and a breathing circuit. The heater base includes a heater plate positioned in a recessed region, and a heat conductive portion of the chamber is configured to contact the heater plate. The heater base includes a guard configured to control movement of the chamber into and out of the recessed region. The guard includes an anti-racking mechanism. The chamber includes an inlet port, an outlet port. A downward extension extends into the chamber from the inlet port, and a baffle is disposed at a lower end of the downward extension. A component of the breathing circuit can include a conduit hanging end cap for shipping and storage. The end cap can include a hanging component to allow the breathing circuit component to be hung from a medical stand. The system can detect when breathing circuits are connected in reverse.

Abstract: A humidification system can include a heater base, a chamber, and a breathing circuit. The heater base includes a heater plate positioned in a recessed region, and a heat conductive portion of the chamber is configured to contact the heater plate. The heater base includes a guard configured to control movement of the chamber into and out of the recessed region. The guard includes an anti-racking mechanism. The chamber includes an inlet port, an outlet port. A downward extension extends into the chamber from the inlet port, and a baffle is disposed at a lower end of the downward extension. A component of the breathing circuit can include a conduit hanging end cap for shipping and storage. The end cap can include a hanging component to allow the breathing circuit component to be hung from a medical stand. The system can detect when breathing circuits are connected in reverse.

Abstract: An infant positive airway pressure (PAP) or continuous positive airway pressure (CPAP) device and related patient interface and system, which can provide a flow of breathing gas to the patient interface. The device can be incorporated into the patient interface and includes at least one interior passage in the shape of a nozzle having a throat, a first portion upstream of the throat and a second portion downstream of the throat relative to the flow of breathing gas. The passage has a vent opening within the second portion and the interior passage defines a continuously curved surface extending between the throat and the vent opening. The second portion of the nozzle preferably is divergent and the first portion can be convergent or non-convergent (e.g., constant cross-section).

Abstract: An infant positive airway pressure (PAP) or continuous positive airway pressure (CPAP) device and related patient interface and system, which can provide a flow of breathing gas to the patient interface. The device can be incorporated into the patient interface and includes at least one interior passage in the shape of a nozzle having a throat, a first portion upstream of the throat and a second portion downstream of the throat relative to the flow of breathing gas. The passage has a vent opening within the second portion and the interior passage defines a continuously curved surface extending between the throat and the vent opening. The second portion of the nozzle preferably is divergent and the first portion can be convergent or non-convergent (e.g., constant cross-section).

Abstract: A humidification system can include a heater base, a chamber, and a breathing circuit. The heater base includes a heater plate positioned in a recessed region, and a heat conductive portion of the chamber is configured to contact the heater plate. The heater base includes a guard configured to control movement of the chamber into and out of the recessed region. The guard includes an anti-racking mechanism. The chamber includes an inlet port, an outlet port. A downward extension extends into the chamber from the inlet port, and a baffle is disposed at a lower end of the downward extension. A component of the breathing circuit can include a conduit hanging end cap for shipping and storage. The end cap can include a hanging component to allow the breathing circuit component to be hung from a medical stand. The system can detect when breathing circuits are connected in reverse.

Abstract: An infant positive airway pressure (PAP) or continuous positive airway pressure (CPAP) device and related patient interface and system, which can provide a flow of breathing gas to the patient interface. The device can be incorporated into the patient interface and includes at least one interior passage in the shape of a nozzle having a throat, a first portion upstream of the throat and a second portion downstream of the throat relative to the flow of breathing gas. The passage has a vent opening within the second portion and the interior passage defines a continuously curved surface extending between the throat and the vent opening. The second portion of the nozzle preferably is divergent and the first portion can be convergent or non-convergent (e.g., constant cross-section).