Abstract: A screw suitable for use specifically in the field of oral dental surgery consists of a bioresorbable material and comprises a drive that can be broken off by means of a predetermined breaking point and/or has a thickened shaft below the contact surface of a cap of the head of the screw.

Abstract: An orthopedic screw and plate system in which the screw has a single male thread profile disposed on its shaft. The thread profile is uniform and unitary. The plate provides plate holes. A female thread profile is disposed on the interior of the plate holes, and extends through the thickness of the plate. The female thread profile is configured for matching threaded engagement with the male thread profile on the shaft of the screw, such that when the screw is threadably received through the plate hole and into a bone, threaded engagement between the screw and the plate locks the plate in a desired position relative to the bone. Methods of fixation are also described using the disclosed screw and plate system.

Abstract: The invention relates to a screw, which is used specifically in the field of oral dental surgery. The screw consists of a bioresorbable material and comprises a drive that can be broken off by means of a predetermined breaking point and/or has a thickened shaft below the contact surface of a cap of the head of the screw.

Abstract: A method and an apparatus for screw removal from bone plates used in osteosynthesis. The method includes the steps of: performing an incision in the soft tissue surrounding an implanted bone screw having a screw head inserted in an elongated plate hole of a bone plate; positioning an expandable tip of the apparatus in a portion of the plate hole which is not occupied by the bone screw and in the proximity of the screw head of the bone screw, wherein the expandable tip is in an unexpanded position; and widening the plate hole in a lateral direction essentially perpendicular to a major axis of the elongated plate hole by expanding the expandable tip of the apparatus from the unexpanded position to an expanded position.

Abstract: A device (1) for mutually fixing a longitudinal carrier (3) to a bone fixation element (4), wherein the device consists of a three-dimensional body (5) which has a channel (6) that is open on one side, wherein the axis of the channel (7) receives the longitudinal carrier (3), and a bore hole (8) that extends crosswise in relation to the axis of the channel (7) through the body (5) and that is provided with a wall (10). At least one part of the bore wall (10) disposed between the channel (6) and the bore hole (8) is embodied as an elastic element (11) which can be pressed into the region of the channel (6) by introducing the bone fixation element (4) into the bore hole (8), such that a longitudinal carrier (3) arranged in the channel can be firmly clamped in a rotational and longitudinal manner by said elastic element (11).

Abstract: A method and an apparatus for screw removal from bone plates used in osteosynthesis. The method includes the steps of: performing an incision in the soft tissue surrounding an implanted bone screw having a screw head inserted in an elongated plate hole of a bone plate; positioning an expandable tip of the apparatus in a portion of the plate hole which is not occupied by the bone screw and in the proximity of the screw head of the bone screw, wherein the expandable tip is in an unexpanded position; and widening the plate hole in a lateral direction essentially perpendicular to a major axis of the elongated plate hole by expanding the expandable tip of the apparatus from the unexpanded position to an expanded position.

Abstract: The invention relates to a sleeve (1), for a bone fixation element, in particular, a wire (10), comprising A) two tubular elements (3; 4), having a common longitudinal axis (2), each with a central drilling (8) of the same diameter (D), an external end (20; 21) and an intermediate end (22; 23) with a front face (28; 29) and B) a shearable connector web (5), fixed to the two tubular elements (3; 4), outside the central drilling (8), by means of which the two tubular elements (3; 4) are axially connected to each other.

Abstract: The invention relates to an aiming, or targeting, device which is used to guide and place longitudinal bone fixing means in a predetermined direction with respect to a bone fixing device. The aiming device includes securing means, which can be detachably secured to a bone fixing device, a first centering part, which can be placed on the bone fixing device, and a second centering part, which is arranged at a distance from the first centering part. Both of the centering parts include at least one pair of guiding elements which are arranged in a coaxial manner in relation to each other.

Abstract: The device is used for mutually securing or clamping a longitudinal carrier (e.g., a spinal rod) to a bone fixing element (e.g., a pedicle screw). The device includes a body having a channel that is open along its longitudinal axis on one side for receiving the longitudinal carrier. The body has a bore that extends fully through the body and at least partially intersects the channel. The bore is conical in form and has a large opening, a small opening, and an inner thread. The head of the bone fixing element has an outer thread that corresponds to the inner thread. As the fixing element is secured in the bore, it locks the longitudinal carrier to the device.

Abstract: The invention relates to a sleeve (1), for a bone fixation element, in particular, a wire (10), comprising A) two tubular elements (3; 4), having a common longitudinal axis (2), each with a central drilling (8) of the same diameter (D), an external end (20; 21) and an intermediate end (22; 23) with a front face (28; 29) and B) a shearable connector web (5), fixed to the two tubular elements (3; 4), outside the central drilling (8), by means of which the two tubular elements (3; 4) are axially connected to each other.

Abstract: A device (1) for mutually fixing a longitudinal carrier (3) to a bone fixation element (4), wherein the device consists of a three-dimensional body (5) which has a channel (6) that is open on one side, wherein the axis of the channel (7) receives the longitudinal carrier (3), and a bore hole (8) that extends crosswise in relation to the axis of the channel (7) through the body (5) and that is provided with a wall (10). At least one part of the bore wall (10) disposed between the channel (6) and the bore hole (8) is embodied as an elastic element (11) which can be pressed into the region of the channel (6) by introducing the bone fixation element (4) into the bore hole (8), such that a longitudinal carrier (3) arranged in the channel can be firmly clamped in a rotational and longitudinal manner by said elastic element (11).

Abstract: A cutting and forming device includes an outer sleeve, an inner sleeve, and a housing. The outer sleeve has a longitudinal axis, a front end, a rear end, and a borehole having an borehole axis. The inner sleeve, can be rotated in the outer sleeve's borehole and includes a front end, a rear end, and a borehole having a borehole axis. The housing with a central axis has a front end, a rear end, and a cavity which accommodates the outer sleeve and passes through the housing parallel to the central axis. The front end of the inner sleeve has a circular cutting edge which is concentric with the borehole axis of the inner sleeve, and the borehole at the front end of the outer sleeve has a constriction whose longitudinal axis is parallel to the borehole axis of the outer sleeve.

Abstract: A screw with an integrated screwdriver, the screw having a screw shaft with a thread, a screw head, and a longitudinal axis, and the screwdriver being connected coaxially with the longitudinal axis over a specified breaking point with the screw head, characterized in that the screw head has an external thread.

Abstract: The device for bone fixation comprises a bone plate (1), made from a polymeric material, with an upper side (2), an underside (3) intended to be in contact with the bone and plate holes (4) of diameter “D”, which connect the upper side (2) with the underside (3), and with one hole axis (5) and several longitudinal bone fixation elements (10), which are intended to be introduced into the holes (4) of the plate (1) and have an external thread (11) with a diameter “A” and a core diameter “K”.

Abstract: The device is used for mutually securing or clamping a longitudinal carrier (e.g., a spinal rod) to a bone fixing element (e.g., a pedicle screw). The device includes a body having a channel that is open along its longitudinal axis on one side for receiving the longitudinal carrier. The body has a bore that extends fully through the body and at least partially intersects the channel. The bore is conical in form and has a large opening, a small opening, and an inner thread. The head of the bone fixing element has an outer thread that corresponds to the inner thread. As the fixing element is secured in the bore, it locks the longitudinal carrier to the device.

Abstract: The invention relates to an aiming, or targeting, device which is used to guide and place longitudinal bone fixing means in a predetermined direction with respect to a bone fixing device. The aiming device includes securing means, which can be detachably secured to a bone fixing device, a first centering part, which can be placed on the bone fixing device, and a second centering part, which is arranged at a distance from the first centering part. Both of the centering parts include at least one pair of guiding elements which are arranged in a coaxial manner in relation to each other.

Abstract: A cutting and forming device comprising an outer sleeve, an inner sleeve, and a housing. The outer sleeve includes a second longitudinal axis, a first front end, a first rear end, and a first borehole having an first borehole axis passing longitudinally through the outer sleeve. The inner sleeve, capable of being rotated in the first borehole coaxially to the first axis of the first borehole, includes a second front end, a second rear end, and a second borehole having a second borehole axis passing through the inner sleeve longitudinally. The housing with a central axis has a front end, a rear end, and a cavity which accommodates the outer sleeve and passes through the housing parallel to the central axis.

Abstract: A screw with an integrated screwdriver, the screw having a screw shaft with a thread, a screw head, and a longitudinal axis, and the screwdriver being connected coaxially with the longitudinal axis over a specified breaking point with the screw head, characterized in that the screw head has an external thread.