Abstract:
The invention concerns a method for the controlled distribution of pico- or nano-volumes of a liquid, comprising the step of: A. Deposing the liquid as a film or separated sessile drops on a surface of a starting substrate; the liquid being extracted and distributed on the surface of a substrate called "destination substrate", the method being characterized in that: - At least one between said starting substrate and destination substrate is a pyroelectric substrate; The method comprising the following further step: B. Varying the temperature of said pyroelectric substrate to induce a surface charge density σ such that the liquid, undergoing the electro-dynamic force, creates dispensing cones wherefrom droplets detach, which are deposed on the surface of the destination substrate, The surface of the destination substrate being set at a distance D, from the surface of the starting substrate facing it, smaller than the critical distance given by the following: Dc = (1+θ/4)V 1/3 wherein 6Ms the contact angle of the dispensing cone and ^ the volume of the liquid of the same dispensing cone. The invention further concerns the relevant device for the controlled distribution of pico- or nanovolumes of liquid.
Abstract:
A pouring device for a container for the dosing of liquid comprises a housing (H), a passage for the liquid within the housing (H), an electrical operated opening/closing mechanism for opening or closing the passage in order to dose a predetermined or registerable amount of liquid; the passage comprises a silicon tube (1), and the opening/closing mechanism is to block the silicon tube (1) by squeezing the silicon tube (1) in order to close the passage.
Abstract:
Selon un procédé de diffusion d'un produit (3) liquide par atomisation dans l'air, on atomise le produit (3) liquide en fines gouttelettes en suspension dans l'air pour former un brouillard, et on disperse le brouillard dans un volume à traiter, et on crée un mouvement d'air tourbillonnaire dans le brouillard pour le disperser. Appareil mettant en œuvre le procédé.
Abstract:
A jetting apparatus (15) for jetting droplets of viscous medium onto a substrate and a method of improving the performance of the jetting apparatus. The jetting apparatus (15) includes a jetting outlet (27) through which the droplets are jetted, a flow generator for producing a flow of air past the jetting outlet for removing viscous medium residue at the jetting outlet (27), a receptacle (55) for receiving viscous medium residue transported by the air flow away from the jetting outlet (27), and a flow path (58) for the air flow between the jetting outlet (27) and the flow generator, via the receptacle. A flow sensor (70) is arranged in the flow path (58) for measuring the air flow. An air flow signal representative of the air flow is obtained, the air flow signal is evaluated for determining at least one status of the jetting apparatus (15), and an indication of the status is provided.
Abstract:
A method and a device for the atomisation of a liquid are proposed. A liquid jet is directed onto a hot contact surface, in particular a deflecting surface, so that a part of the liquid is vaporised. The non-vaporised liquid is atomised into small droplets that form an aerosol. A method for the production of such a device is also proposed.
Abstract:
Apparatus and method for providing a heated cleaning fluid to a vehicle surface. The apparatus has an inlet port for receiving an amount of fluid; an outlet port for dispensing an amount of heated fluid; a heating element that heats up fluid passing from the inlet to the outlet; and a control circuit for energizing at least a portion of the heating element with a voltage to heat the fluid passing from the inlet to the outlet. The apparatus also has expandable and compressible features and parts for protection against freezing.
Abstract:
Apparatus and method for providing a heated cleaning fluid to a vehicle surface. The apparatus has an inlet port for receiving an amount of fluid; an outlet port for dispensing an amount of heated fluid; a heating element that heats up fluid passing from the inlet to the outlet; and a control circuit for energizing at least a portion of the heating element with a voltage to heat the fluid passing from the inlet to the outlet. The apparatus also has expandable and compressible features and parts for protection against freezing.
Abstract:
A coating system for coating a stent with a medication, the stent being mounted on a balloon on a catheter, the system having an applicator device including a fluid ejection nozzle, a reservoir and a pressure wave actuating arrangement. The nozzle has an opening configured for dispensing the medication on to the stent. The reservoir is in fluid communication with the nozzle. The nozzle and the reservoir are configured for generating a negative pressure for preventing leakage of the medication via the opening. The pressure wave actuating arrangement is configured for generating a pressure wave in the nozzle for causing fluid displacement in the nozzle, thereby ejecting a droplet of the medication from the opening. The negative pressure of the nozzle and the reservoir are configured in order that the remaining medication is drawn toward the opening to replace the medication dispensed with the droplet.
Abstract:
An aerosol generating device generates an aerosol having a desired particle size by passing a liquid through a flow passage heated to convert the liquid into a vapor. The flow passage includes an outlet section that controls the exit velocity of the vapor and produces an aerosol with a desired particle size. The aerosol generator can be incorporated in a hand held inhaler, and the liquid can include a medicament, which is delivered to a targeted portion of the lung using the inhaler.
Abstract:
A fluid vaporizing device such as an aerosol generator having a tubular heater in the form of thin film of resistance heating material lining a fluid passage and method for forming the tubular heater within the fluid passage. The tubular heater can be heated to volatilize a fluid within the passage. The fluid vaporizing device can be used for the generation of aerosols containing medicated material.