Abstract: An allergy test device for applying a liquid medium onto or into the skin, having a film with a flat part for placing on the skin and with at least one part which is spaced apart from the skin during use and has a container for receiving the liquid medium, wherein each container of each spaced-apart part has at least one closable opening. Each spaced-apart part is designed to be deformable in the direction of the flat part of the film, and a valve is arranged movably in the at least one opening of each container, wherein the opening of the container is sealed off in a closure position of the valve, and, upon deformation of the spaced-apart part, the valve is at least partially opened in a position deviating from the closure position.

Abstract: The invention relates to an electrical stimulation device (1) having a stimulator (2), containing a generator (3) for generating electrical stimulation pulses having specific stimulation parameters, a voltage supply (4) for supplying the generator (3) with electrical energy and a stimulator housing (13), and having at least two needle electrodes (5) for piercing the surface of the skin of an area to be stimulated, which needle electrodes (5) are connected to the stimulator (2) via a line (7), wherein the stimulator (2) can be releasably connected to a fastening element (14) for fastening the stimulator (2) to the surface of the skin. In order to fasten the stimulator (2) to the surface of the skin of a patient in an easier and better manner, the fastening element (14) has a clip (15) for releasably receiving the stimulator housing (13) and a support element (16) for supporting and fastening the stimulator (2) to the surface of the skin.

Abstract: The invention relates to an electrical stimulation device (1) having a stimulator (2), containing a generator (3) for generating electrical stimulation pulses having specific stimulation parameters, a voltage supply (4) for supplying the generator (3) with electrical energy and a stimulator housing (13), and having at least two needle electrodes (5) for piercing the surface of the skin of an area to be stimulated, which needle electrodes (5) are connected to the stimulator (2) via a line (7), wherein the stimulator (2) can be releasably connected to a fastening element (14) for fastening the stimulator (2) to the surface of the skin. In order to fasten the stimulator (2) to the surface of the skin of a patient in an easier and better manner, the fastening element (14) has a clip (15) for releasably receiving the stimulator housing (13) and a support element (16) for supporting and fastening the stimulator (2) to the surface of the skin.

Abstract: The invention relates to an electrical stimulation device (1) with a stimulator (2), containing a generator (3) for generating electrical stimulation impulses with defined stimulation parameters, and a voltage supply (4) for supplying the generator (3) with electrical energy, and with at least two needle electrodes (5) for insertion into the skin surface of an area that is to be stimulated, which needle electrodes (5) are connected to the stimulator (2). According to the invention, the needle electrodes (5) are arranged in a common electrode housing (6) and are connected to the stimulator (2), preferably releasably, via a line (7).

Abstract: The invention relates to a method and a device for manipulating samples, in particular tissue samples, comprising at least one needle (2) for punching holes (34) in sample carriers (4) and at least one further needle (3) for punching samples out of preparations (5), wherein a device for detecting the position of the surface of the sample carriers (4) is provided. According to the invention, the device for detecting the position of the surface of the sample carriers (4) or preparations (5) is formed by suction lines (9) opening into the needles (2, 3), whereby the suction lines (9) are connected with a unit (11) for detecting negative pressure so that the approach of the needles (2, 3) to the surface of the sample carriers (4) or the preparations (5) is detectable by the resulting negative pressure and that a drive unit (7) is provided for displacing the needles (2, 3) relative to the sample carrier (4) or preparation (5) from the detected position of the surface to a predefined punching depth (D).

Abstract: The invention relates to a method and a device for manipulating samples, in particular tissue samples, with at least one needle (3) for punching samples from preparations (5), in particular prepared tissue specimen, at defined positions and a control device (13) to control the needle (3). The aim of the invention is to provide a method and a device, which allow a simple selection of desired punch positions on the preparation (5) and enable a rapid, simple and automatic manipulation of samples.