DEVICE AND METHOD FOR FIXATING A SUTURE ANCHOR IN HARD TISSUE

A tool for fixating a suture anchor in a hard tissue opening with the aid of a material having thermoplastic properties and energy transmitted to the suture anchor for in situ liquefaction of at least part of the material having thermoplastic properties, includes a distal face, an axial channel and a substantially tube-shaped interface piece fitting into the axial channel of the tool, wherein the axial channel and a proximal end of the interface piece are equipped with catch elements cooperating for catching the interface piece in the axial channel when the interface piece is moved in a proximal direction in the axial channel. 本发明公开了种缝线锚钉(2)，其包括热塑性材料，并通过液化至少部分该材料并使其渗入硬组织开口的壁部内而被固定于硬组织开口中。在所述固定步骤期间，优选在该步骤快要结束时，被保持于远向缝线沟道中的缝线通过被夹紧于所述缝线锚钉(2)和所述硬组织开口的壁部之间或通过由所述缝线沟道的坍塌所形成的夹紧或止动相对所述硬组织被锁定。