A device is provided for delivering a predetermined volume of at least one substance within a body cavity of a subject. The device contains a) a capsule for containing the predetermined volume of substances; b) a delivery end, having at least one orifice of diameter D, for placement in proximity to the body cavity; c) a valve mechanically connectable to the capsule, having at least two configurations: (i) an active configuration in which the valve enables delivery of the substances; and (ii) an inactive configuration, in which the valve prevents delivery of the substances from the capsule to the body cavity; and d) a fluid tight chamber configured to contain predetermined volume V.sub.gas of pressurized gas at a predetermined pressure, P.sub.gas. The capsule further contains at least one mixing mechanism that mixes the substances and the pressurized gas after the valve is reconfigured to the active configuration.

A device is provided for delivering a predetermined volume of at least one substance within a body cavity of a subject. The device contains a) a capsule for containing the predetermined volume of substances; b) a delivery end, having at least one orifice of diameter D, for placement in proximity to the body cavity; c) a valve mechanically connectable to the capsule, having at least two configurations: (i) an active configuration in which the valve enables delivery of the substances; and (ii) an inactive configuration, in which the valve prevents delivery of the substances from the capsule to the body cavity; and d) a fluid tight chamber configured to contain predetermined volume V.sub.gas of pressurized gas at a predetermined pressure, P.sub.gas. The capsule further contains at least one mixing mechanism that mixes the substances and the pressurized gas after the valve is reconfigured to the active configuration.

A substance delivery mask includes a body, an exhaling valve, an inhaled valve, and a fog module. The fog module comprises a controlling module, a container, and an atomizer. The controlling module is disposed on the body. The container is disposed on the controlling module, the container is storing a mixed liquid, and the mixed liquid includes water and a plurality of nanoparticles. The atomizer is disposed on the container, the atomizer is used to atomize the water of the mixed liquid to form fog particles, and the fog particles are wrapped several of the nanoparticles respectively. The substance delivery mask can encapsulate the water-soluble or water-insoluble medicines, or nutritional products in the fog particles generated from the atomizer. The present invention can deliver medicine, nutritional products or vaccines by inhalation or oral.

Phyto material tablets, tablet vaporizers, methods and apparatus for forming phyto material tablets. The tablets are formed to increase vaporization efficiency. Tablets can include break regions to facilitate fracturing into multiple pieces for vaporization. The tablets can also include multiple layers of different phyto material mixtures. Compression molds are used to shape the tablets. The compression molds can be provided on a rotational assembly to facilitate rapid manufacturing of multiple tablets. The vaporizers include heating chambers that are configured to increase the surface area of the tablets exposed for vaporization. The heating chambers include compression or fracture members that compress and/or encourage fracturing of the tablets to assist vaporization.

Phyto material tablets, tablet vaporizers, methods and apparatus for forming phyto material tablets. The tablets are formed to increase vaporization efficiency. Tablets can include break regions to facilitate fracturing into multiple pieces for vaporization. The tablets can also include multiple layers of different phyto material mixtures. Compression molds are used to shape the tablets. The compression molds can be provided on a rotational assembly to facilitate rapid manufacturing of multiple tablets. The vaporizers include heating chambers that are configured to increase the surface area of the tablets exposed for vaporization. The heating chambers include compression or fracture members that compress and/or encourage fracturing of the tablets to assist vaporization.

A cavity authentication system for verifying at least one feature of a user using at least one acoustic signal, including an orifice element, including at least a signal opening and a reflection opening, an acoustic wave generator (AWG), an acoustic wave sensor (AWS), at least one output waveguide, at least one input waveguide, a processor, a memory and a power supply, the AWG for producing at least one acoustic signal, the AWS for receiving at least one reflection of the acoustic signal, the output waveguide for transmitting the acoustic signal to the user, the input waveguide for receiving the reflection of the acoustic signal, the memory configured to store cavity authentication data representative of the feature, wherein the processor is configured to analyze the reflection and to compare the analyzed reflection with the retrievable cavity authentication data and to generate an indication whether the analyzed reflection matches the retrievable cavity authentication data above a pre-determined threshold.

A cavity authentication system for verifying at least one feature of a user using at least one acoustic signal, including an orifice element, including at least a signal opening and a reflection opening, an acoustic wave generator (AWG), an acoustic wave sensor (AWS), at least one output waveguide, at least one input waveguide, a processor, a memory and a power supply, the AWG for producing at least one acoustic signal, the AWS for receiving at least one reflection of the acoustic signal, the output waveguide for transmitting the acoustic signal to the user, the input waveguide for receiving the reflection of the acoustic signal, the memory configured to store cavity authentication data representative of the feature, wherein the processor is configured to analyze the reflection and to compare the analyzed reflection with the retrievable cavity authentication data and to generate an indication whether the analyzed reflection matches the retrievable cavity authentication data above a pre-determined threshold.

A method of analyzing a spray generated by a spray device for spraying pharmaceutical fluid, including providing a spray head of a spray device for spraying pharmaceutical fluid, the spray head including a spray orifice; causing a test fluid to pass through the spray head towards the spray orifice, the test fluid being air at a temperature that is different from ambient temperature; displaying, by strioscopy, the flow of test fluid leaving the spray orifice; and analyzing the display of the test-fluid flow so as to determine whether or not the test-fluid spray coming from the spray head complies with predetermined specifications. The cycle time for analyzing one spray head is less than 1.5 seconds, advantageously less than 1 second.

A method is provided that includes intranasally dispensing nasal wash fluid into a nasal cavity of a subject. Thereafter, a specimen sample is collected by performing an anterior nares nasal swab. The specimen sample is tested for the presence of a virus using a lateral flow immunoassay test strip. Other embodiments are also described.

A method is provided that includes intranasally dispensing nasal wash fluid into a nasal cavity of a subject. Thereafter, a specimen sample is collected by performing an anterior nares nasal swab. The specimen sample is tested for the presence of a virus using a lateral flow immunoassay test strip. Other embodiments are also described.