A bleed device for hydraulic circuits and a kit for bleeding are described that enable bleeding of the hydraulic circuit independently of the removal or slackening of the bleed device. The nail has at least at least one transverse borehole extending transversely to the central axis with the cross-sectional profile F, where the cross-sectional profile F has a maximum length a in the direction of the central axis and a maximum width b perpendicularly thereto. The substrate state may define the thickness and the qualities of the films on the substrate, the critical dimensions of the different layers on the substrate. m represents 2 or 3, and n represents an integer of 1 to 25. The at least one compression element is connected to the at least one transverse force transmitting element and at least one pressure distributing element is formed at one end face of the compression element. The femoral component includes an anterior portion, first and second condylar portions extending from the anterior portion and having first and second bearing surfaces, the first and second condylar portions having first and second posterior ends, and a third condylar portion defined between the first and second condylar portions and extending anteriorly beyond the first and second posterior ends.