Abstract: The disclosure relates to a method for influencing entities in a gas flow. The method comprises manipulating a platformin situ biologically and/or chemically so as to arrange the platform to be capable of influencing an entity in the gas flow, and allowing the gas flow to advance through the platform or parallel to a surface of the platform so as to influence at least some of the entities in the gas flow. The disclosure further relates to a device for influencing entities in a gas flow. The device comprises a platform being arranged to influence an entity in a gas flow by allowing the gas flow to advance through the platform or parallel to a surface of the platform, and a manipulating means for manipulating the platform in situ biologically and/or chemically. Still further the disclosure relates to a two-staged ultrasound atomizer for manipulating a platform in situ biologically and/or chemically for influencing entities in a gas flow.

Abstract: A needle apparatus (10) for taking a sample from inside of an object comprises a stylet (100), which comprises a longitudinal hollow (102). A transmission fiber arrangement (104) and a reception fiber arrangement (112) are on a bottom (126) of a surface (106) of the hollow (102). A first end (108) of the transmission fiber arrangement (104) is at an access tip (110) of the stylet (100). The transmission fiber arrangement (104) guides optical radiation from a second end (120) of the transmission fiber arrangement (104) to the first end (108) and output the optical radiation therefrom. A first end (114) of the reception fiber arrangement (112) is located at the access tip (110). The reception fiber arrangement (112) receives optical radiation from environment of the access tip (110) and guides the optical radiation therefrom to a second end (122) of the reception fiber arrangement (114) and outputs the optical radiation from there.

Abstract: Various embodiments are described herein for a device for using acoustic or mechanical energy to perform an action at a target site of an object. The device comprises a conduit having an aperture disposed at the target site, a displacement signal source for generating a mechanical displacement signal, a coupling assembly having for coupling the displacement signal source to the conduit, a pressure controller coupled to the proximal end of the conduit to vary an amount of pressure in the conduit when obtaining a first entity from or delivering a second entity to the target site, and a control unit for controlling the displacement signal source to generate the mechanical displacement signal based on a desired acoustic or mechanical wave mode.

Abstract: The inventive device is a mechanical wave inducing device being connectable to a needle. The device has a displacement source and a driving signal connection part in order to connect the displacement source to a signal source. The device has also two connections parts, which are connected to the displacement source, and which each wing part has a connection point to be attached with the needle. The wing parts are converters in order to convert longitudinal mechanical wave movement created by the displacement source into transversal mechanical wave movement for the needle, and at least one connection point is designed to match the transversal mechanical waves to the needle.

Abstract: Various embodiments are described herein for a device for using acoustic or mechanical energy to perform an action at a target site of an object. The device comprises a conduit having an aperture disposed at the target site, a displacement signal source for generating a mechanical displacement signal, a coupling assembly having for coupling the displacement signal source to the conduit, a pressure controller coupled to the proximal end of the conduit to vary an amount of pressure in the conduit when obtaining a first entity from or delivering a second entity to the target site, and a control unit for controlling the displacement signal source to generate the mechanical displacement signal based on a desired acoustic or mechanical wave mode.