A cleanable respiratory tube is provided. The cleanable respiratory tube comprises a corrugated tube adapted for conveying gases to and/or from a patient. The corrugated tube has a first and a second fitting at a first and a second end thereof, respectively. A sheath having a smooth cleanable outer surface encases the corrugated tube. A first and a second end of the sheath is fixedly attached to the respective first and second fitting. The sheath is made of a flexible foil-type sheet material surrounding the corrugated tube having an inside diameter approximately equal to an outside diameter of ridges of the corrugated tube such that the sheath is in a touching relationship therewith.

A nasal respiratory apparatus comprising a compressible nasal dam is removably engaged with an air chamber to provide respiratory gas to a patient. The air chamber has a gas connection port, at least one nasal conduit, a nasal end tidal sample port, wherein the gas connection port is configured to receive an externally supplied gas via a gas supply tube and wherein the at least one nasal conduit in fluid communication with the gas connection port. The nasal dam has a least one nares port corresponding to the at least one nasal conduit of the air chamber, the nares port extending from an upper external surface of the nasal dam to a lower external surface of the nasal dam such that the upper external surface of the nasal dam interfaces with soft tissue of a patients nasal base to provide a substantial seal around the patients nasal base to facilitate respiratory gas supply to the patient.

An endotracheal tube that is particularly useful for surgical operations on a patient's lower face. The endotracheal tube comprises a swivel segment and a laryngeal segment that are rotatably joined. To facilitate relocation of the endotracheal tube during surgery, the swivel segment can be swiveled in relation to the laryngeal segment. To allow instruments to be inserted, the swivel segment has a lumen access port that opens into the lumen of the swivel segment. The laryngeal segment may have a reinforced portion to prevent occlusion or damage by the patient biting. Also disclosed are methods for performing surgery on a patient's face using the endotracheal tube and methods of intubating a patient's airway using the endotracheal tube.

The principles and embodiments of the present invention relate to methods and systems for safely providing NO to a recipient for inhalation therapy. There are many potential safety issues that may arise from using a reactor cartridge that converts NO.sub.2 to NO, including exhaustion of consumable reactants of the cartridge reactor. Accordingly, various embodiments of the present invention provide systems and methods of determining the remaining useful life of a NO.sub.2-to-NO reactor cartridge and/or a breakthrough of NO.sub.2, and providing an indication of the remaining useful life and/or breakthrough.

A patient interface device includes a frame having a central portion with a patient facing side, an opposite outward facing side, a first plurality of magnetic elements secured on or in the patient facing side, and a first aperture defined therethrough. The first aperture having a first portion extending from the outward facing side toward the patient facing side which is structured to be coupled to a delivery conduit and a patient side portion defined by a wall which extends outward from the patient facing side forming a hub. The device further includes a cushion having a patient contacting side which is structured to sealingly engage about an orifice or orifices of a patient, an opposite frame contacting side including a second aperture defined therein which is sized and configured to engage about the hub, and a second plurality of magnetic elements for magnetically coupling the cushion to the frame.

A trap bowl is provided to accumulate liquid droplets from a filter, as a liquid content. The trap bowl includes a transparent vertical prism. The transparent vertical prism includes a face that forms a vertical transparent surface facing against a content of the section. The face can provide a first angle of total reflection when content of the section is a type of gas, and a second angle of total reflection when the content of the section is the liquid content. A light source may emit a light beam incident on the face at an angle of incidence. The angle of incidence results in reflection of the light beam, striking the light receiver, when the face has the first angle of total reflection, and results in refraction of the light beam, missing the light receiver, when the face has the second angle of total reflection.

A method of sanitizing at least a portion of a medical device with a sanitization system comprising a base comprising a sanitizing chamber, a sanitizing gas generator, a primary fan or pump, a secondary fan or pump, and a controller. The sanitizing operation comprising generating a sanitizing gas pulse including causing the sanitizing gas generator supplying a sanitizing gas and causing at least one of the primary fan or pump and the secondary fan or pump to operate for a pulse period, and conducting a dwell operation after the pulse period, the dwell operation comprising discontinuing supply of said sanitizing gas and slowing or stopping said primary fan or pump and said secondary fan or pump for a dwell time.

The invention concerns a manual resuscitation bag having a first PEP exhaust valve (4) arranged in a first conduit element (3) and fluidly communicating with the ambient atmosphere for venting gas to the atmosphere when the gas pressure, into the first conduit element (3), exceeds a given pressure threshold. The first PEP exhaust valve (4) has a valve body (5) and a calibration mechanism (6, 12; 7-10) for setting a desired pressure threshold. The calibration mechanism (6, 12; 7-10) is a rotatable member (6), actuatable by a user, arranged on the valve body (5) and cooperating with a pressure adjusting device (7-10) arranged into the valve body (5), and a support member (12) comprising several markings (11) corresponding to several settable pressure values, arranged between the rotatable member (6) and the valve body (5).

A CPAP system for supplying humidified gases to a user is disclosed in which various interfaces are described for gas delivery. A mask cushion including a deformable cushion and thin sheath is described.

A CPAP system for supplying humidified gases to a user is disclosed in which various interfaces are described for gas delivery. A mask cushion including a deformable cushion and thin sheath is described.