1. A device for attaching tendons or ligaments, comprising: - a first portion (2) of the device adapted to be attached to the human bone, - the second portion (3) of the device, which is equipped with additional engagement member (4 4 ), in order to maintain tension attachment tendons or ligaments to be affixed, and which is statically connected to the first portion (2) of the device to prevent detaching ligament or tendon from the bone, wherein, said second portion (3) of the device connected to the first ESTATE heel (2) of the device with the possibility of free rotation, in order to allow free relative rotation between the first (2) and second (3) portions about the longitudinal axis (X) of the device (1), characterized in that it comprises fixing means (6, 11, 9e), which may be associated with the device (1 100) mounting to lock the first (2) and second (3) portions of the device to each other for rotation about the longitudinal axis (X) .2. Fastening apparatus according to claim 1, wherein the second (3) section is configured to move relative to the first (2) portion between a first operative position (Z), wherein the second (3) section can rotate freely relative to the first (2) portion, and the second working position (W), wherein the second (3) section is fixed for rotation with the first (2) uchastkom.3. The locking device according to claim 2, wherein the second (3) section is configured to offset a bounded along a longitudinal axis (X) to move between a first operating position (Z) and a second working position (W) .4. The locking device according to claim 2 or 3, wherein the fixing means (6, 11, 9e) comprise a fixed1. Устройство для крепления сухожилия или связки, содержащее:- первый участок (2) устройства, выполненный с возможностью прикрепления к кости человека,- второй участок (3) устройства, который снабжен дополнительным элементом зацепления (4 4), для того чтобы поддерживать натяжение прикрепляемого сухожилия или связки подлежащего прикреплению, и
