A device (1) for homogenizing a gas distribution in a process chamber (2). The device (1) has a aperture shield (3) and a linear drive (4) for moving the aperture shield (3) in a reciprocating manner in two mutually opposite linear movement directions (5) between two terminal positions. The aperture shield (3) is able to be heated by at least one heating installation (6) of the device (1), and the aperture shield (3) by way of at least one interposed compensation element (7) of the device (1) is connected to the linear drive (4). The compensation element (7) enables a relative movement between the aperture shield (3) and the linear drive (4) in at least one direction (8) transverse, preferably orthogonal, to the linear movement directions (5) of the aperture shield (3).

A fluid stirring and liquefaction promoting apparatus is coupled to a pipeline of a heat pump system to enable uniform mixture of refrigerator oil with refrigerant to improve the heat exchange efficiency of the heat pump system and to reduce the energy consumption. The liquefaction promoting apparatus is configured with a cylindrical housing, a system of tubes fluidly coupled between the pipeline and the interior of the cylindrical housing, as well as large and a small coil springs disposed in the cylindrical housing. Being actuated by the kinetic energy of the fluids circulating in the cylindrical housing, the large and small coil springs vibrate and oscillate to stir and mix the fluids to result in their uniform mixture.

The presently disclosed subject matter provides devices and methods for sample extraction from a swab during biological sample processing. In particular embodiments, the devices and methods are configured for use in conjunction with microfluidic devices for sample processing.

The presently disclosed subject matter provides devices and methods for sample extraction from a swab during biological sample processing. In particular embodiments, the devices and methods are configured for use in conjunction with microfluidic devices for sample processing.

Mixing device (1) and fluid mixing method, by means of successive transfers between syringes. The mixing method comprises placing a pair of syringes (2, 3) in the mixing device (1), adjusting a variable fixing element adaptable to the pair of syringes (2, 3) and selecting and running a mixing programme, being the mixing force, the speed and the range and the number of transfers adjustable. The mixing device comprises a mobile carriage (7) longitudinally movable and fixing elements (8, 9) with an adjustable distance between them. The invention allows for the mixing or emulsifying of blood fluids with different viscosity, particularly a protein gel and a platelet-rich plasma, for the preparation of dermatological formulations, in a versatile, hygienic and effective manner.

Mixing device (1) and fluid mixing method, by means of successive transfers between syringes. The mixing method comprises placing a pair of syringes (2, 3) in the mixing device (1), adjusting a variable fixing element adaptable to the pair of syringes (2, 3) and selecting and running a mixing programme, being the mixing force, the speed and the range and the number of transfers adjustable. The mixing device comprises a mobile carriage (7) longitudinally movable and fixing elements (8, 9) with an adjustable distance between them. The invention allows for the mixing or emulsifying of blood fluids with different viscosity, particularly a protein gel and a platelet-rich plasma, for the preparation of dermatological formulations, in a versatile, hygienic and effective manner.

Disclosed are a solution preparation device, a solution replacement system and a solution replacement method. The solution preparation device comprises a liquid container, a powder container, an upper cover and a controller; the liquid container is provided with a detection element for detecting a specific parameter of a solution; the powder container is arranged above the liquid container, and the upper cover covers a top end of the powder container to form a material holding cavity for placing a powder, a bottom end of the powder container is provided with a material discharge port through which the powder in the material holding cavity enters the liquid container. The solution preparation device further comprises a stopper for blocking the material discharge port, the controller controls the stopper according to the specific parameter to realize opening and closing of the material discharge port.

The purpose of the present invention is to provide a surface treatment device and a paddle with improved strength and uniform plating thickness by uniformly stirring surface treatment solution near an object to be plated. Also, the purpose of the present invention is to provide a surface treatment method capable of stirring for a long period of time, by uniformizing plating thickness, and by improving a strength of a paddle. A surface treatment device comprising at least one plateshaped paddle, in a surface treatment tank, for stirring surface treatment solution near an object to be plated by reciprocally moving the paddle with respect to the object to be plated, wherein the paddle is configured by integrally forming a plurality of square bars provided in depth direction of the surface treatment solution in the surface treatment tank along the object to be plated at regular intervals, and a square bar of the plurality of square bars is provided with a curved surface with respect to the object to be plated in a cross section in thickness direction of the square bar.

A device, which serves to separate particles of a bulk material, which is deliverable at an input location and is removable processed in different or at least approximately unitary particle sizes at an output location, includes at least one separating element, which has a metal separating plate with through-openings provided therein, which separating element can be provided with ultrasonic energy and for this purpose is connected to an ultrasonic transducer and which is held by a holding device. The holding device is a mounting shaft, which is held at one end or at both ends fixedly or movably, in particular rotatably and/or axially displaceable, and which at one end or at both ends is connected to an ultrasonic transducer, by means of which ultrasonic energy is couplable via the mounting shaft into the separating element, which is designed to be dimensionally stable.

A device, which serves to separate particles of a bulk material, which is deliverable at an input location and is removable processed in different or at least approximately unitary particle sizes at an output location, includes at least one separating element, which has a metal separating plate with through-openings provided therein, which separating element can be provided with ultrasonic energy and for this purpose is connected to an ultrasonic transducer and which is held by a holding device. The holding device is a mounting shaft, which is held at one end or at both ends fixedly or movably, in particular rotatably and/or axially displaceable, and which at one end or at both ends is connected to an ultrasonic transducer, by means of which ultrasonic energy is couplable via the mounting shaft into the separating element, which is designed to be dimensionally stable.