Disclosed herein is a method for converting light energy into mechanical energy and/or oxygen storage, purification, isolation, concentration, and/or removed. The method may comprise exposing a mixture of a polycyclic aromatic compound and a photosensitizer to oxygen and light to form an endoperoxide, and decomposing the endoperoxide to reform the polycyclic aromatic compound and oxygen. The polycyclic aromatic compound may be a naphthalene compound or anthracene compound and/or may have a formula

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An energized assembly to disseminate a treatment agent in vapor phase to a local environment. The assembly includes an emanator element to hold treatment agent, and a flameless energizing source to facilitate volatization of the treatment agent. Preferred embodiments operate for a period of time of between about 4 and 8 hours, and can then be discarded. Typically, a housing associates the treatment agent and the energizing source. Embodiments may sometimes include one or more of: a gas-tight boundary element, a thermal transfer element, a trigger mechanism, a safety mechanism, a termination mechanism, a time-delay mechanism, solidized treatment agent to avoid spills, and a sequestering arrangement.

The invention discloses an aromatherapy humidifier, which includes a base, a shell and a cover, which are superimposed sequentially. An atomizing container is arranged on the base. A water storage tank is arranged on the atomizing container. The atomizing container and the water storage tank are contained in the shell. The water storage tank supplies water for the atomizing container and is provided with a mist channel communicated with the atomizing container. The atomizing container is provided with an atomizing assembly for atomizing water into mist and an aromatherapy assembly for volatilizing essential oil. The cover is covered on the shell and the water storage tank, the cover is provided with a spray port communicated with the mist channel and an water inlet communicated with the water storage tank, the mist and the volatilizing essential oil float through the mist channel and the spray port to humidify air.

A system for cooling the brain of a human subject, includes a cooling subsystem which inputs a flow of air or breathable gas, cool the air or breathable gas, and outputs cooled air or breathable gas which is delivered to a human subject. A flow control device controls a flow rate of the flow of the air or breathable gas input to the cooling subsystem and a flow rate of the cooled air or breathable gas delivered to the human subject. One or more flow rate sensors measure at least a flow rate of flow of cooled air or breathable gas. One or more temperature sensors measure at least a temperature of a brain and the temperature of the flow of cooled air or breathable gas. A controller adjusts a cooling rate, the temperature, and the flow rate of flow of cooled air or breathable gas delivered to the human subject to cool the brain of the human subject.

The present disclosure provides an aerosol delivery device and a liquid delivery and atomization assembly for use with an aerosol delivery device. In one implementation, the liquid delivery and atomization assembly comprises a liquid composition, an atomization assembly, and a liquid delivery component configured to transport at least a portion of the liquid composition to the atomization assembly. The liquid delivery component comprises at least one microchannel configured to deliver the portion of the liquid composition to the atomization assembly, and the microchannel includes a variable flow characteristic defined along at least a portion of the microchannel, the variable flow characteristic being configured to control the flow of the portion of liquid composition through the microchannel.

A vein heating assembly includes a sleeve that has a first portion which is hingedly coupled to a second portion. The first portion is positionable in an open position to have a patient's arm positioned therein and the first portion is positionable in a closed position to surround the patient's arm. A plurality of nozzles is each integrated into the sleeve. A plurality of heating elements is each coupled to the sleeve to warm the patient's arm when the heating elements are turned on thereby increasing blood flow in the arm for enhancing the appearance of veins. A steam unit is integrated into the sleeve to produce steam that is delivered onto the patient's arm for increasing blood flow in the arm for enhancing the appearance of veins.

Ablation catheters and systems include catheter tips with a positioning element to ablate a target tissue that damages substantial cellular component in the target tissue while avoiding significant damage to the extra cellular matrix.

A surgical humidification system includes a source of gas flow and a humidifier that receives the gas flow and outputs a humidified gas to a delivery conduit. The delivery conduit has an outlet and a suitable interface, such as a diffuser, is connected to the outlet. The interface can be positioned near or within an open surgical cavity of a patient to supply the humidified gas to the cavity. The system also includes a pressure relief arrangement that operates to relieve pressure from the system above a normal operating pressure. The pressure relief arrangement can be located in a non-sterile portion of the system, such as upstream from the humidifier, for example.

Systems and methods are provided for portable and compact nitric oxide (NO) generation that can be embedded into other therapeutic devices or used alone. In some embodiments, an ambulatory NO generation system can be comprised of a controller and disposable cartridge. The cartridge can contain filters and scavengers for preparing the gas used for NO generation and for scrubbing output gases prior to patient inhalation. The system can utilize an oxygen concentrator to increase nitric oxide production and compliment oxygen generator activity as an independent device. The system can also include a high voltage electrode assembly that is easily assembled and installed. Various nitric oxide delivery methods are provided, including the use of a nasal cannula.

Fluid management systems are disclosed that include software-controlled, electro-mechanical devices used in combination with single-use or multi-use tubing sets. Functions of the fluid management systems can include fluid pressurization, fluid warming, fluid deficit monitoring (including flow-based and weight-based), suction, fluid collection, and fluid evacuation (including indirect-to-drain and direct-to-drain options). The systems can be configured based on the surgical environment (e.g., operating room or physician office) as well as other user needs and/or preferences.