Respiratory apparatus

A method of manufacturing a component of a respiratory apparatus, the method comprising injection moulding a component comprising a first gas passageway angularly coupled to a second gas passageway in a branched configuration, wherein the first gas passageway is defined by an enclosing wall extending between an input opening and an opening in the second gas passageway, and the second gas passageway extends along a length between a first opening and a second opening, a port in the enclosing wall adapted to receive an ancillary device, wherein the port extends in a transverse orientation from the first gas passageway, and a retaining arm hingedly mounted at one end to an exterior surface of the component such that the retaining arm is movable between an open configuration in which an ancillary device may be engaged with the port, and a retention configuration in which the retaining arm acts, in use, to resist removal of the ancillary device from the port, wherein the entire retaining arm maintains substantially a same overall shape in both the open configuration and the retention configuration, and wherein the retaining arm is retained in the open configuration until a user manually moves the retaining arm into the retention configuration, wherein the retaining arm has an inner portion extending from an outer side of the enclosing wall, an intermediate portion formed next to the inner portion and angled with respect to the inner portion, and an outer portion formed next to the intermediate portion and curving out of a plane defined by the intermediate portion to provide a hemi-cylindrical channel in which the ancillary device is received when the retaining arm is in the retention configuration.

A respiratory apparatus comprising:

• a component comprising:
• a first gas passageway coupled to a second gas passageway at an obtuse angle, wherein the first gas passageway is defined by an enclosing wall extending between an input opening and an opening into the second gas passageway, and the second gas passageway extends along a length between a first opening and a second opening;
• a port in the enclosing wall adapted to receive an ancillary device, wherein the port extends in a transverse orientation from the first gas passageway;
• and
• a retaining arm hingedly mounted at one end to an exterior surface of the component such that the retaining arm is movable between an open configuration in which the ancillary device may be engaged with the port, and a retention configuration in which the retaining arm acts, in use, to resist removal of the ancillary device from the port, wherein the entire retaining arm maintains substantially a same overall shape in both the open configuration and the retention configuration, and wherein the retaining arm is retained in the open configuration until a user manually moves the retaining arm into the retention configuration;
• and
• an ancillary device, the ancillary device being adapted to be received in the port with a tapered end of the ancillary device located in the first gas passageway, wherein the retaining arm acts to resist removal of the ancillary device from the port when the ancillary device is received in the port and the retaining arm is in the retention configuration, wherein the retaining arm has an inner portion extending from an outer side of the enclosing wall, an intermediate portion formed next to the inner portion and angled with respect to the inner portion, and an outer portion formed next to the intermediate portion and curving out of a plane defined by the intermediate portion to provide a hemi-cylindrical channel in which the ancillary device is received when the retaining arm is in the retention configuration.

A component of a respiratory apparatus comprising:

• a first gas passageway defined by an enclosing wall;
• a port in the enclosing wall adapted to receive an ancillary device, wherein the port extends in a transverse orientation from the first gas passageway;
• and
• a retaining arm hingedly mounted at one end to an exterior surface of the component such that the retaining arm is movable between an open configuration in which the ancillary device may be engaged with the port, and a retention configuration in which the retaining arm acts, in use, to resist removal of the ancillary device from the port, wherein the entire retaining arm maintains substantially a same overall shape in both the open configuration and the retention configuration, and wherein the retaining arm is retained in the open configuration until a user manually moves the retaining arm into the retention configuration, wherein the retaining arm has an inner portion extending from an outer side of the enclosing wall, an intermediate portion formed next to the inner portion and angled with respect to the inner portion, and an outer portion formed next to the intermediate portion and curving out of a plane defined by the intermediate portion to provide a hemi-cylindrical channel in which the ancillary device is received when the retaining arm is in the retention configuration.