Abstract: A torque wrench (1) is embodied as a ratchet instrument in the medical field. A catch segment (40) which can be displaced in a defined manner is arranged on the periphery of the receiving opening, and the front part thereof is oriented towards the receiving opening. When the torque wrench (1) is actuated in a forward direction, the torque which is to be generated is applied by a forward force (F) exerted by an user, by a deflectable, preferably linear-elastic flexible arm (7). A catch spring extends from the catch segment into the neck area. The catch segment and the catch spring form a single-pieced or several part catch (4). The catch segment and the catch spring are arranged in a channel-shaped space (5). The catch (4) is a single-piece with the neck part or is fixed thereto as a separate component.

Abstract: The invention concerns a distraction appliance for orthodontic, orthognathic and maxillofacial surgery purposes on the mandible for the distraction of a frontal bone segment, wherein the appliance is formed by a first distractor module and a second distractor module, wherein the first distractor module is essentially u-shaped, approximated to a dental arch, and has a mid-segment and on both sides of it an end-segment, wherein the corresponding end-segment is connected to the mid-segment by means of a linear distraction element and wherein each end-segment provides fixation parts, and wherein the second distractor module is related to a frontal bone segment to be moved, guiding the same and having fixation parts.

Abstract: The invention relates to a torque wrench (1) which is embodied as a ratchet instrument in the medical field. A catch segment (40) which can be displaced in a defined manner is arranged on the periphery of the receiving opening, and the front part thereof is oriented towards the receiving opening. When the torque wrench (1) is actuated in a forward direction, the torque which is to be generated is applied by means of a forward force (F) exerted by means of a user, by a deflectable, preferably linear-elastic flexible arm (7). A catch spring extends from the catch segment into the neck area. The catch segment and the catch spring form a single-pieced or several part catch (4). The catch segment and the catch spring are arranged in a channel-shaped space (5) which enables said two elements to be deviated on the plane counter to the force of the catch spring. The catch (4) is a single-piece with the neck part or is fixed thereto as a separate component.

Abstract: The invention concerns a distraction appliance for orthodontic, orthognathic and maxillofacial surgery purposes on the mandible for the distraction of a frontal bone segment, wherein the appliance is formed by a first distractor module and a second distractor module, wherein the first distractor module is essentially u-shaped, approximated to a dental arch, and has a mid-segment and on both sides of it an end-segment, wherein the corresponding end-segment is connected to the mid-segment by means of a linear distraction element and wherein each end-segment provides fixation parts, and wherein the second distractor module is related to a frontal bone segment to be moved, guiding the same and having fixation parts.

Abstract: An impression system includes an impression cap (4) for transferring an end, protruding from a human tissue structure, of an implant (1) which is fitted in the human body, including possible superstructures, to a master cast. The outwardly directed implant end has an undercut contour on its outside, and the impression cap (4) has a geometry which complements the undercut contour and engages therein. The undercut contour is formed either by an implant geometry tapering in a trumpet shape towards the implant bed, or by a recess near the implant end. Taking an impression and producing a master cast are greatly simplified with the impression system. In addition, the actual geometrical situation on the patient can be transferred to the master cast with greater precision.