A universal respiratory detector for detecting a respiratory gas. The universal respiratory detector may include a plurality of layers with a visual indicator to quickly and reversibly change color to detect a respiratory gas parameter such as carbon dioxide. The color change may be visible from both sides of the detector. In some examples, the respiratory detector may be a biocompatible and conformable sticker for mounting on a person’s face or an oxygen delivery device.

The disclosure relates to a hood (100) for humidifying air entering into a tracheostomy valve (190) comprising: a container (102) having a front wall (104) and a rear wall (108), the rear wall (108) being configured to face an inlet (192) of the tracheostomy valve (190); the container (102) comprising a material (110) enclosed by the front wall (104) and the rear wall (108); and a channel (112), extending through the front wall (104), extending pass the material (110) and extending through the rear wall (108), allowing exterior air (120) to flow through the container (102) to the tracheostomy valve (190) during inhalation.

A heat and moisture exchanger device comprising a housing containing a microcurrent-generating filter capable of generating a low level microcurrent. A microcurrent-generating filter can reduce the number of living or active microbes.

A cuff assembly for an airway tube includes an outer bladder and an inner cuff. The inner cuff is positioned adjacent to the airway tube, and the outer bladder is positioned adjacent to the inner cuff. The outer bladder is made with a less elastic material and operates at a higher relative pressure. The inner cuff is made with a more elastic or hyper-elastic material and operates at a lower relative pressure. A pressure controller independently adjusts the pressure within the inner cuff and the outer bladder. A secretion collection receptacle is formed by the cuff assembly and is evacuated via a suction catheter or channel.

An UV-C device may include several UV-C light sources (e.g., UV-C LEDs) and such UV-C LEDs may have UV-C reflecting structures arranged to direct UV-C in a particular direction and at a particular size and shape. Doing so may, for example, increase the UV-C in a particular direction or working area. A UV-C generating device may be utilized in an air stream, such as an air duct, to sterilize air from that air stream. Multiple UV-C inactivation devices may be coupled in series and placed into a single housing for in order to increase the efficacy of the UV-C inactivation device. The inlet of the device may draw air using an inlet module attachment (e.g., a hood with one or more than one inlet hood) and may output air using an outlet module attachment (e.g., a duct to deliver air to an outflow air duct). Computational fluid dynamic software may be provided where UV-C inactivation devices may be positioned (e.g., manually or autonomously by an adaptive algorithm) to determine impact on airflow against various pathogens (e.g., Staphylococcus and/or SARS-CoV-2).

A customized tracheocutaneous fistula and tracheostomy plug having a face plate and a body customized to the anatomy of a patient is disclosed. The face plate has a face plate diameter, and the body has a first end connected to the face plate and a second end, a shoulder connected at the second end, and a tapered tip extending from the shoulder. The body has a body length extending from the first end to the second end and a shoulder diameter. The face plate diameter and the shoulder diameter are each greater than a measured minimum stoma diameter, and the body length is equal or substantially equal to a measured stoma length. Also, a mold-based method and a direct method of manufacturing the plug.

A sealing apparatus for use in combination with an oropharyngeal device for maintaining a patient airway, the oropharyngeal device having a hollow airway tube with proximal end and a distal end, the proximal end being adapted to be fluidly coupled with a supply of gas for passage of air or medical gas wherein the device is adapted for insertion through the mouth of a patient and with one end into the pharynx of a patient above and spaced from the epiglottis of the patient, the sealing apparatus comprising: a flexible sheet adapted to be placed over a user's face; and the flexible sheet comprising an opening to allow the distal end of the tube to be passed therethrough, the opening being dimensioned to prevent the proximal end of the tube from being passed through the opening.

A respiratory mask includes a mask body having a face-engaging portion, and at least one retaining member connected to the mask body and including at least one engaging member for receiving and tethering a liner to the respiratory mask to generally overlie the face-engaging portion. The retaining member may include a flexible elongated body having a central portion and opposing ends, and a bottom surface arranged to be attached to the respiratory mask. The liner may include a liner body constructed from an absorbent material and having an outer edge, an inner edge, and an opening bounded by the inner edge, wherein an extending portion of the liner body is defined which extends outwardly beyond the face-engaging portion and includes at least one aperture for engaging the retaining member. A kit for use with a respiratory mask includes at least one liner and at least one retaining member.

A heat and moisture exchanger, comprises a rigid monolithic body (101). The rigid monolithic body (101) comprises a circumferential wall (102); and a structure of interconnected elements (106) surrounded by the circumferential wall (102). The structure (106) is open to fluid communication through the structure (106) between a first side (114) of the structure and a second side (115) of the structure (106) opposite the first side (114) of the structure (106). The circumferential wall (102) extends from the first side (114) to the second side (115) of the structure (106). The heat and moisture exchanger (100) is open on both of the first side (114) and the second side (115) of the structure (106), to allow fluid communication between the structure (106) and an exterior of the heat and moisture exchanger (100) on both sides (114, 115).

A multilayered wound dressing which is two-dimensional and has a peripheral edge is provided that includes at least one hydrophobic antimicrobial layer, at least one absorbent layer which includes a water-containing hydrogel, and a covering layer. Starting from the edge of the wound dressing, at least one incision is formed, which partially separates the wound dressing.