Abstract: A respiratory mask include an annular frame having has a front flange surface and a rear flange surface. A single-piece flexible mask body include a second flange. Four engaging sets each of which has an engaging hole defined by an inner peripheral surface extending from the front flange surface to the rear flange surface, and an engaging rod extending from the second flange and having a retained part, a free part, and an impeding part connected between the free part and the retaining part. When the respiratory mask is in an assembled state, the retained part of the engaging rod of each engaging set is deformed by the inner peripheral surface corresponding to the engaging set, and the impeding part of the engaging rod of each engaging set impedes removal of the engaging rod from the engaging hole of the engaging set.

Abstract: A nasogastric tube connector device includes an annular connector body for detachably engaging a through hole of a respirator mask having an inner peripheral surface defining a space, and a fixed member having a first concave surface and two side surfaces cooperating with the inner peripheral surface to define an opening of the space for passing of a nasogastric tube therethrough. A first plug member is detachably inserted through the opening into the space, and includes a second concave surface cooperating with the first concave surface to define a main tube hole communicating with the space. A second plug member is detachably inserted into the main tube hole to sealingly close the opening.

Abstract: A full face respirator mask includes a base having a base plate, a front protruding portion extending forwardly from a front portion of the base plate, an air inlet extending through the front protruding portion and the base plate, a plurality of connectors connected to the base plate, and an assembling ring disposed on a rear peripheral edge of the base plate and having a plurality of engaging grooves. A flexible interface is detachably assembled to the base, and includes a ring-shaped mounting portion connected to the assembling ring, and an abutment portion for abutting against a face of a user. The mounting portion has a ring-shaped embedding groove receiving the assembling ring.

Abstract: A full face respirator mask includes a ring-shaped frame, a transparent face plate connected to an inner periphery of the frame, an air inlet extending through the face plate, and a cushion integrally molded to the frame and having an abutment portion. The frame has top, bottom, left and right parts. At least one protruding plate extends rearwardly and horizontally from the top part. The at least one protruding plate is embedded in the cushion body to push the abutment portion to abut tightly against the face of a user when the full face respirator mask is positioned on the face of the user.

Abstract: A respiratory mask includes an air duct, a muting member and a mask body. The muting member includes an annular portion sleeved on the air duct and formed with multiple muting holes extending therethrough, and a securing portion. The mask body is made of a flexible material, and has a connecting portion secured to the securing portion, and a groove portion connected to the connecting portion and defining a deformation groove that surrounds a central axis and that has a groove opening which faces parallel to the central axis. A ratio of an inner radius of the mask body to a groove width of the deformation groove ranges from 4 to 8. A ratio of the groove width to a groove depth of the deformation groove ranges from 0.5 to 1.5.

Abstract: A full face respirator mask includes a ring-shaped frame, a transparent face plate connected to an inner periphery of the frame, an air inlet extending through the face plate, and a cushion integrally molded to the frame and having an abutment portion. The frame has top, bottom, left and right parts. At least one protruding plate extends rearwardly and horizontally from the top part. The at least one protruding plate is embedded in the cushion body to push the abutment portion to abut tightly against the face of a user when the full face respirator mask is positioned on the face of the user.

Abstract: A respiratory mask includes a mask frame and a soft mask pad. The mask frame includes a ring-shaped base which is disposed at the front end of the mask pad, and a pair of wing portions which are connected to two opposite sides of the ring-shaped base and each of which is formed with a free end face. The mask pad includes an abutting portion, and is transformable between a non-sealing state, where the abutting portion is separated from the free end faces, and a sealing state, where the abutting portion abuts against the free end faces.

Abstract: A respiratory mask includes a mask body and an adjusting unit. The mask body has a frame portion, a flexible portion extending from the frame portion, and a forehead pad. The flexible portion has a mask-connecting end that is adjacent to the frame portion, and a pad-connecting end that is distal from the frame portion and connected to the forehead pad. The adjusting unit has a hardness greater than that of the flexible portion, and is removably coupled to the flexible portion for adjusting a curvature of the flexible portion and a distance between the forehead pad and the frame portion.

Abstract: A respirator mask device includes a frame unit, a mask shell connected pivotally to the frame unit, a mask cushion secured to the mask shell, an adjusting unit operable for adjusting relative position between an upper end of the mask shell and the frame unit, two connecting pieces disposed respectively on left and right sides of a lower end of the frame unit and connected pivotally to the mask shell, two first engaging members disposed respectively on the left and right sides of the lower end of the extension frame, and a head strip unit. The head strap unit includes a strap body, and two second engaging members disposed on the strap body and connected respectively and removably to the first engaging members.

Abstract: A respiratory mask includes a mask body and an adjusting unit. The mask body has a frame portion, a flexible portion extending from the frame portion, and a forehead pad. The flexible portion has a mask-connecting end that is adjacent to the frame portion, and a pad-connecting end that is distal from the frame portion and connected to the forehead pad. The adjusting unit has a hardness greater than that of the flexible portion, and is removably coupled to the flexible portion for adjusting a curvature of the flexible portion and a distance between the forehead pad and the frame portion.

Abstract: A locking assembly is adapted for connecting a first respiratory tube and a second respiratory tube. The first respiratory tube has an outer surrounding surface. The locking assembly includes a sleeve and a coupling unit. The sleeve is adapted to be sleeved fittingly on the first respiratory tube and has an inner surface, an outer surface, and a first locking portion. The coupling unit includes a connecting tube and a locking component that has a second locking portion. The second locking portion is pivotable relative to the connecting tube between a locked position and an unlocked position.

Abstract: A nebulizer mouthpiece includes a hollow main body and a connecting tube. The main body is a one-piece element, and includes an annular wall defining an inner space and having a middle section, an outlet section, and a storage section connected respectively to two ends of the middle section. The middle section has an inner diameter not smaller than 30 mm. The connecting tube is adapted for interconnecting the middle section and a liquid container, and surrounding a central axis. A distance between the central axis and a distal end of the storage section is not greater than three times the inner diameter. Liquid received in the liquid container is turned into mist and introduced into the inner space through the connecting tube.

Abstract: A respirator mask device includes a frame unit, a mask shell connected pivotally to the frame unit, a mask cushion secured to the mask shell, an adjusting unit operable for adjusting relative position between an upper end of the mask shell and the frame unit, two connecting pieces disposed respectively on left and right sides of a lower end of the frame unit and connected pivotally to the mask shell, two first engaging members disposed respectively on the left and right sides of the lower end of the extension frame, and a head strip unit. The head strap unit includes a strap body, and two second engaging members disposed on the strap body and connected respectively and removably to the first engaging members.

Abstract: A respiratory mask includes a cup-shaped body having an annular flange, and a hollow face-contact body having an annular connecting end portion embedding the annular flange. The annular flange has opposite first and second annular surfaces, a plurality of angularly spaced-apart through holes, and an outer annular peripheral edge interconnecting the first and second annular surfaces. The annular connecting end portion includes outer and inner annular plates abutting against the first and second annular surfaces, respectively, a plurality of connecting ribs respectively filling the through holes and interconnecting the inner and outer annular plates, and an annular rim surrounding the outer annular peripheral edge.

Abstract: A breathing assistance apparatus includes a main body unit, a head strap unit, a nasal prong unit, and an intake unit. The main body unit has a rearwall, a frontwall, a connecting wall connected between the rearwall and the frontwall to define a chamber thereamong. The connecting wall has a rearwall-connecting portion connected to the rearwall, and a frontwall-connecting portion connected between the frontwall and the rearwall-connecting portion and having a thickness smaller than that of the rearwall-connecting portion so as to allow for floating movement of the frontwall relative to the rearwall.

Abstract: A breathing assistance apparatus includes a main body unit, a head strap unit, a nasal prong unit, and an intake unit. The main body unit has a rearwall, a frontwall, a connecting wall connected between the rearwall and the frontwall to define a chamber thereamong. The connecting wall has a rearwall-connecting portion connected to the rearwall, and a frontwall-connecting portion connected between the frontwall and the rearwall-connecting portion and having a thickness smaller than that of the rearwall-connecting portion so as to allow for floating movement of the frontwall relative to the rearwall.

Abstract: An air supply tube for a nasal breathing apparatus is made of a silicone material, and includes a tubular wall surrounding an axis and defining an axial hole. The tubular wall is corrugated, and includes a plurality of annularly-shaped concave and convex wall portions alternately arranged along the length of the air supply tube. The convex wall portions are farther from the axis than the concave wall portions. The concave wall portions have a first radial thickness which is larger than a second radial thickness of the convex wall portion.

Abstract: A breathing assistance apparatus is used to deliver gases to a wearer. The breathing assistance apparatus includes: a main body unit having a main body and two side straps connected to the main body, each of the side straps having a strap body, at least one side cushion projecting from the strap body and adapted for contact with the wearer's head, and a buffering space disposed within the side cushion; a head strap unit connected to the side straps; a nasal prong unit mounted to and disposed behind the main body; and an intake unit mounted to and disposed in front of the main body.

Abstract: A respiratory mask includes: a mask body including a mask shell, and a mask cushion connected to a rear side of the mask shell; a front cover disposed in front of and hinged to the mask shell, and having a support arm extending upwardly; a forehead support unit having a forehead frame connected to a top end of the support arm, and a forehead pad connected to a rear side of the forehead frame; and an adjustment unit connected to at least one of the mask shell and the front cover, and operable to produce relative movements of the mask shell and the front cover so that the mask body can abut against the user's nose with an appropriate abutment pressure.