A device for inactivating or reducing an amount of biological contaminants in human milk comprises an interior for taking in human milk to be treated in order to inactivate or reduce the amount of biological contaminants, and at least one UV lamp for irradiating the milk being in the interior in order to subject it to the treatment. The treatment is a first function of the device, wherein the device has a second function, the device being capable of fulfilling the first function at the same time as the second function, wherein the second function is one or more of milk expressing, milk collecting, milk storing, milk warming, milk feeding, milk processing and milk handling.

A method for preparation of human milk to be stored includes the steps of subjecting the human milk (M) to a treatment for inactivating or reducing an amount of biological contaminants in the human milk, freezing the human milk and forming flakes of the human milk, and collecting the frozen human milk flakes (F) in a container. This method and an according apparatus enable storing human milk for later use in a very small dose, i.e. in the form of pasteurized frozen milk flakes.

A system for providing ultraviolet treatment to light absorbing liquids, such as biological liquids in a medical instrument, is disclosed. The system can include an ultraviolet impenetrable housing configured to enclose a portion of the medical instrument containing the biological fluid. At least one ultraviolet radiation source is integrated within the housing that emits ultraviolet radiation towards the medical instrument and the biological fluid. A control unit is configured to direct the ultraviolet radiation source to treat the biological fluid with ultraviolet radiation.

A substance is treated using a device having: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is directed to the inlet of the volute or cyclone head and irradiated with one or more wave energies produced by the first and second wave energy sources as the substance passes through the device.

A portable UV sterilising device comprises a proximal portion configured to be held by a user, and a distal portion adjacent the proximal portion, a plurality of UV light sources positioned at the distal portion and spaced around the distal portion, the plurality of UV light sources configured to project UV light outside the distal portion, wherein when the plurality of UV light sources is activated the plurality of UV light sources is configured to project the UV light radially around substantially all of the distal portion, and a control unit configured to control at least one of exposure duration and UV light intensity for the plurality of UV light sources, wherein the control unit is configured to use at least one machine learning (ML) model to control at least one of the exposure duration and the UV light intensity.

A portable UV sterilising device comprising a proximal portion configured to be held by a hand of a user, a distal portion coupled to the proximal portion, and a plurality of UV light sources positioned at the distal portion. The UV light sources are spaced around the distal portion and configured to project UV light outside the distal portion. A control unit positioned at least partly within the proximal portion and is electrically coupled to the plurality of UV light sources. When the UV sterilising device is activated, the control unit controls the UV light sources to project UV light radially around at least a part of the distal portion.