Abstract: An electrode for measuring bioelectric signals of an individual includes a dome-like shape support body having a concave contact side facing the individual and an opposite convex connector side. The support body defines a central axis arranged centrally through the contact and connector sides. The electrode includes outer contact pins located on the contact side at a radially outer region of the support body for contacting an area of interest to be measured. The electrode is made of elastomeric material and has conductive properties. The support body is flexible such that after applying the electrode to the individual a force exerted centrally onto the connector side and parallel to the central axis leads to an upwards bending of the radially outer region. The upwards bending leads to tilting of the outer contact pins such that a tip of the outer contact pins moves radially outwards along the area of interest.

Abstract: A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.

Abstract: A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.