Abstract: A sensor (30) for measuring a biological potential of an individual, comprising: a measurement electrode (31) comprising a base (32), at least one leg intended to come into contact with an anatomical zone of the individual and at least one electrical connection member (38), at least one locking member (45) configured to cooperate in a reversible manner with at least one complementary locking member (25) on an external support (10) so as to removably fasten the sensor (30) to the external support (10), the locking member (45) being separate from the electrical connection member (38), a protection element (40) made from a resilient material and delimiting a recess (41) in which the leg extends.

Abstract: The present invention relates to a hermetic package (40) suitable to be implanted in a body of an animal or a human patient. The housing (40) comprises a base part (50), a cover part (60) suitable to cover the base part (50), and a connecting means (70), provided at an interface between the base part (50) and the cover part (60). The base part (50) comprises a first hermetic material and the cover part comprises a second hermetic material and the connecting means (70) comprise a third hermetic material, adapted to hermetically seal the interior of the hermetic housing (40) from the outside of the hermetic housing (40). The present invention further refers to an implantable electronics package with such a housing, an implant, in particular a retinal implant, and a method to provide a hermetic housing for an implant.