Abstract: A conductive layer structure for application to a surface of a subject, in particular for use in medical products, includes a first conductive layer having at least one electrically conductive path. The conductive layer structure includes at least a further conductive layer having at least one electrically conductive path, and at least one intermediate layer extending at least partially between the first and further conductive layer. At least portions of the first and further conductive layer are arranged above one another within the layer structure. Further, the layer structure is elastically stretchable.

Abstract: A layer structure for application to a surface of a subject, in particular for use in medical products. The layer structure having a support layer; a backing layer that is removably attached to the support layer; at least one local reservoir provided at a predetermined position between the backing layer and the support layer; and a fluidic substance and a solid substance being arranged inside the at least one local reservoir and being in contact with one another. The fluidic substance is configured to continuously condition the solid substance.

Abstract: An electrode patch, in particular for performing electrocardiography. The electrode patch includes an elastic adhesive layer having an adhesive contact surface that is configured to adhere to the skin of a subject the electrode patch is applied to; an elastic conductive layer including a plurality of measurement points and conductive paths, the conductive paths being configured to conductively connect the plurality of measurement points to a connector; and a plurality of electrodes, wherein each of the plurality of electrodes is formed at least by one of the plurality of measurement points and a corresponding recess provided in the adhesive layer, which recess extends through the entire layer thickness of the adhesive layer and is provided or providable with a substance that is adhesive and conductive, such as hydrogel, so as to conductively connect the one of the plurality of measurement points to the skin of the subject.