Systems and methods for nitric oxide (NO) generation systems are provided. In some embodiments, an NO generation system comprises at least one pair of electrodes configured to generate a product gas containing NO from a flow of a reactant gas. The electrodes have elongated surfaces such that a plasma produced is carried by the flow of the reactant gas and glides along the elongated surfaces from a first end towards a second end of the electrode pair. A controller is configured to regulate the amount of NO in the product gas by the at least one pair of electrodes using one or more parameters as an input to the controller. The one or more parameters include information from a plurality of sensors configured to collect information relating to at least one of the reactant gas, the product gas, and a medical gas into which the product gas flows.

A reusable apparatus, such as a medical instrument or tool, is decontaminated by applying at least one of pressure waves, shockwaves, and ultrasound waves in a sufficient dosage to remove contamination but without adversely affecting the ability to reuse the apparatus.

A filter cartridge for surgical gas delivery systems includes a filter housing configured to be seated in a filter cartridge interface of a surgical gas delivery system, with a plurality of flow paths defined through the filter housing including at least one evacuation/return flow path and at least one insufflation/sensing flow path. A humidity filter element is included in the evacuation/return flow path for removing humidity from an evacuation/return lumen of a tube set. The humidity filter element can include a sintered polymer material configured to provide tortuous flow paths therethrough to condense humidity out of a flow through the humidity filter element.

A process for monitoring a measuring system (110) for mechanical ventilation of a patient (20) is carried out while a fluid connection (40) is established between the patient (20) and a medical device (100). A gas sample is suctioned from the fluid connection (40) and is sent through a gas sensor fluid-guiding unit (52) to a gas sensor array (50). A time curve of the CO2 concentration and O2 concentration in the suctioned gas sample are determined. A concentration change curve of the change over time of the CO2 concentration and the O2 concentration are calculated. A search is made for a time period in which the two concentration change curves continuously have the same sign. Upon detecting such a time period it is checked whether a predefined first leak criterion is met. When this is the case, an indication of a leak (L) is detected.

Systems and methods for providing respiratory therapy are disclosed. The system includes a nebulizer operable to aerosolize a medicament, a cylindrical mixing chamber, an impacting cap and a recirculation tube. The mixing chamber has an inlet port, an outlet port, an aerosol port in fluid communication with the nebulizer, and a drainage port. The inlet port receives a flow of breathing gas. The mixing chamber receives the aerosol via the aerosol port, entrains aerosol into the flow of breathing gas, and delivers the breathing gas entrained with aerosol to the outlet port. The impacting cap receives and coalesces a portion of the aerosol into droplets within the space defined by the mixing chamber and the impacting cap. The mixing chamber is also configured to direct rain-out resulting from the droplets to the drainage port. The system also includes a recirculation tube to return the rain-out to the nebulizer.

Disclosed is a fluid trap for use with, or comprising part of, a respiratory therapy system, and in particular comprising part of, or configured to be connected to, a breathing limb, such as an expiratory limb, of a respiratory therapy system. The fluid trap comprises a container configured to contain fluid received from an inlet; a closure, the closure and container being configured to be removeably mounted together to close the container; and a valve configured to be removeably mounted on at least one of the container and the closure, and configured to be in a closed condition which prevents fluid from flowing through the inlet when the closure is not mounted on the container, the valve being further configured to be in an open position which allows fluid from the inlet into the container when the closure is mounted on the container.

A patient interface for delivery of gas to a patient comprises at least one inspiratory element for directing a flow of gas to a patient airway, at least one expiratory element comprising an expiratory gas flow path for directing expiratory gases from the patient; and at least one gas permeable body in the expiratory gas flow path. Each inspiratory element comprises at least one inspiratory lumen through which said flow of gas is directed. The gas permeable body is configured such that expiratory gases in the expiratory gas flow path are directed through the gas permeable body before exiting the patient interface.

An apparatus to remove liquid from a ventilation system can include a housing, a first port extending into an interior volume of the housing and a second port extending toward the first tube, into the interior volume, separated from the first port by a gap that is at least 5 mm in length, such that ventilating fluid transfers from the first port to the second while secretions and condensate escape through the gap, to be trapped in the housing. The first port joins with a ventilator. The second port joins with an intubation tube coupled to a tracheostomy or endotracheal tube. An extraction port is in a floor of the housing so that accumulated liquids in the housing can drain downward and out the extraction port, while minimizing positive end expiratory pressure loss in the ventilation system, and without exposing caregivers to biological material in the drained liquid.

A reusable apparatus, such as a medical instrument or tool, is decontaminated by applying pressure waves with direct contact of the pressure wave applicator to the reusable apparatus in an open bath in a sufficient dosage to remove contamination but without adversely affecting the ability to reuse the apparatus.

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.