Abstract: In an instrument for laparoscopic surgery, with an operating handle, a rectilinear first shaft section connected to the operating handle, a flexible second shaft section arranged at the distal end of the first shaft section and having an end part located at the distal tip of the second shaft section, wherein the second shaft section can be moved from a rectilinear extension position to a curved position in a predetermined plane of curvature with the aid of a tensioning means engaging on the end part, provision is made for a flexible connecting means to extend between the first shaft section and the end part, and the flexible connecting means has a restoring function with which the flexible second shaft section can be restored automatically to a rectilinear or predetermined extension position.

Abstract: In an instrument for laparoscopic surgery, with an operating handle, a rectilinear first shaft section connected to the operating handle, a flexible second shaft section arranged at the distal end of the first shaft section and having an end part located at the distal tip of the second shaft section, wherein the second shaft section can be moved from a rectilinear extension position to a curved position in a predetermined plane of curvature with the aid of a tensioning means engaging on the end part, provision is made for a flexible connecting means to extend between the first shaft section and the end part, and the flexible connecting means has a restoring function with which the flexible second shaft section can be restored automatically to a rectilinear or predetermined extension position.

Abstract: An access cannula for endoscopic operations comprises a cannula tube, a valve body unit having a valve housing and a valve mounted in the valve housing. The valve body can be connected releasably as a completely assembled valve body unit to one end of the cannula tube. The valve of the valve body ensures a tight closure of the cannula tube at said one end, but allows an instrument to be passed through the valve body unit and the cannula.

Abstract: A biodegradable interference screw for directly affixing a transplant to a bone, the interference screw being provided with at least one longitudinal groove designed to co-act with a tool for insertion of and if necessary, removal of the interference screw from an opening provided in the bone to receive both the transplant and the interference screw.

Abstract: An anchoring element serves for anchoring a ligament transplant in a channel in a bone. The anchoring element has a body which can be brought into an intermediate space between an inner wall of a channel within a bone and a ligament transplant introduced into the channel. The body serves for clamping the ligament transplant in the channel. The body has an outer flexible sheath filled with particles which are of low compressibility, the particles within the outer flexible sheath allowing the outer flexible sheath to accommodate to a shape of the intermediate space between the ligament and the channel (FIG. 4).

Abstract: A device for introducing a suture thread anchor into a bone has a hollow guide sleeve through which the suture thread anchor can be passed. The distal end of the guide sleeve is provided with a contour which makes positioning of the distal end easier. The contour is a point projecting distally from a front annular face of the guide sleeve. A remaining part of the annular face forms a shoulder with the point.

Abstract: A biodegradable fixation element is provided for anchoring a transplant on bone. A rigid body is made of a biodegradable material, said body having an outer side and a hollow interior surrounded by a wall of said body. Numerous perforations are provided in said wall of said body for allowing growth of bone material into said interior of said body via said numerous perforations. It is proposed that the perforations are formed between said anchoring members and said perforations are formed as holes passing through said wall of said body (FIG. 1).

Abstract: An anchoring element serves for anchoring a ligament transplant in a channel in a bone. The anchoring element has a body which can be brought into an intermediate space between an inner wall of a channel within a bone and a ligament transplant introduced into said channel. Said body serves for clamping said ligament transplant in said channel. Said body has an outer flexible sheath filled with particles which are of low compressibility, said particles within said outer flexible sheath allowing the outer flexible sheath to accommodate to a shape of said intermediate space between said ligament and said channel (FIG. 4).

Abstract: An access cannula for endoscopic operations comprises a cannula tube, a valve body unit having a valve housing and a valve mounted in said valve housing. Said valve body can be be connected releasably as a completely assembled valve body unit to one end of said cannula tube. Said valve of said valve body ensures a tight closure of said cannula tube at said one end, but allows an instrument to be passed through said valve body unit and said cannula (FIG. 1).

Abstract: An interference screw serves for anchoring a flexible transplant like a tendon or a ligament in an opening in a bone. The screw has a screw body, a head at one end of said body and a penetrating end at an opposite end of said head and is provided with an outer threading. The outer threading is formed as a sharp threading adjacent to said penetrating end and is formed as a blunt threading in a following region (FIG. 1).

Abstract: A screw for medical purpose has a screw body having a head portion with a facial end face, a shaft portion extending from an end opposite to said facial end face along an axial direction of said screw body, a threading provided on an outer side of said shaft portion, and at least one axially extending groove cut into said outer side of said shaft portion, said at least one groove extending along said head portion and an entire length of said shaft portion, said at least one groove being provided for inserting a drive element of a driving tool therein.