Abstract: A bone screw includes a screw head and a seating sleeve or tulip on the screw head. The bone screw includes two sleeve flanks having a thread. A seat for a rod for surgical connection of adjacent bone screws is formed between the sleeve flanks. On at least one of the sleeve flanks, a guide surface extending in the circumferential direction for a clamping screw to be screwed into the thread is configured on the run-in side, with the guide surface offset in the radial direction vis-à-vis the thread diameter of the female thread.

Abstract: The present invention provides a uni-compartmental knee joint prosthesis (1) which includes a tibial component (2) and a femoral component (3). The tibial component (2) has a fixation portion (10) adapted to be fixed to an upper end of a prepared tibia (T) in a patient, and a bearing portion (30) presenting an articulation surface (32) formed from a ceramic material, wherein the bearing portion (30) is adapted for movement relative to the fixation portion (10). The femoral component (3) is adapted to be fixed to a lower end of a prepared femur (F) in a patient, and comprises a body portion (50) presenting an articulation surface (56) formed from a ceramic material for engagement with the articulation surface (32) of the tibial component (2). The articulation surfaces (32, 56) of the tibial and femoral components are adapted for essentially congruent engagement over a full range of movement of the prosthesis.

Abstract: A medical screw driver includes a shank having a coupling for a handling member for applying torque to the shank. A screw driver portion can be inserted in a pedicle screw head and transmit torque to the screw head. A sleeve is rotatable about the shank and includes a male thread for coupling to a female thread formed at the pedicle screw head. The sleeve has a first sleeve portion having a first engaging portion and a second sleeve portion having a second engaging portion. The first and second engaging portions engage so that the second sleeve portion can transmit torque to the first sleeve portion, and so that the second sleeve portion can be disengaged from the first sleeve portion and drawn off the shank without having to release the first sleeve portion from the pedicle screw head.

Abstract: A rod inserter, system and method are provided which allows for insertion of a rod through a freehand method. The inserter can include an extension structure extending from a handle, the extension structure having a distal end, a proximal end, and a longitudinal axis. The inserter can also include a plurality of linkage structures located in a passageway in the extension structure. The linkage structures can cause a rod connection structure to connect to the rod when the distal linkage structure is moved in a first direction, and to cause the rod connection structure to disconnect from the rod when the distal linkage structure is moved in a second direction substantially opposite to the first direction.

Abstract: A security seal for a medical container includes a seal foot having at least one latch structure movable relative thereto for engaging a mating latch structure formed on the container, and a seal head connected with the seal foot that includes at least one locking tab which is movably connected with the seal head through a hinge element, wherein the security seal includes a bolt element which can be positioned between a release position, in which the latch structure can be moved relative to the seal foot, and a locked position, in which the deformable latch structure is fixed in position relative to the seal foot and/or seal head.

Abstract: A bone screw includes a screw shaft with an external thread. The screw shaft anchors the bone screw in a bone. A proximal end of the screw shaft includes a screw head. The ratio between the outer thread diameter and the thread core diameter increases toward the screw head in a proximal screw shaft portion or in the area of the thread's run-out.

Abstract: A locking sleeve for receiving and locking the legs of a pedicle screw includes a stop ring provided on an inner side of a locking sleeve and resting on an upper edge of the legs, limiting the accommodation depth of the legs in the locking sleeve, and a plurality of groove blocks on the inner side of the locking sleeve which can be inserted between the legs of the pedicle screw for defining a fixed distance between the legs.

Abstract: A device for simultaneously identifying a plurality of surgical instruments or instrument groups includes a first detecting device having a first detection technology for detecting instruments and, if applicable, related instrument-specific information. The device also includes a second detecting device having a second different detection technology for detecting instruments and instrument information. Moreover, the device includes a comparing device for comparing the detection results of the two detecting devices. The comparing device outputs a positive evaluation regarding the correctness of the detected instruments if the two detection results are matching.

Abstract: Embodiments of the disclosed technology relate to a bipolar electrosurgical device for a laparoscopic environment, as well as methods for the use of such a device. Embodiments of the device may include a set of opposing jaws comprising at least one bipolar electrode pair disposed thereon, the set of jaws configured to deliver radiofrequency energy to a target tissue. Embodiments of the set of jaws, when closed, may have a diameter no greater than about 5 mm. The device may further include a shaft with a diameter that may be no greater than about 5 mm. Each of the jaws has a tissue-facing surface of each jaw that may include a complementary self-aligning configuration with respect to the longitudinal axis of the other jaw. Embodiments of the device may further include a pinless rotation assembly formed from rotatably cooperative features of the first jaw and the second jaw that connect the jaws together and enable the jaw set to pivot between an open position and a closed position.

Abstract: An instrument assembly includes a downtube having a tubular body with a proximal end and a distal end. In one embodiment, the proximal end forms an opening for receiving a surgical tool, and the distal end forms at least two attachment members for attaching to a bone anchor. The tubular body forms a hollow passage extending from the proximal end to the distal end. The assembly includes a key for insertion into the proximal end of the downtube to attach the downtube to a bone anchor. The key includes an engagement end configured to engage the at least two attachment members when the key is inserted into the downtube. The key is rotatable within the tubular body between a clamping orientation and a releasing orientation.

Abstract: A surgical handheld instrument for grasping an object includes two lever elements, each lever element having a grip portion and a jaw portion. A lever joint connects the two lever elements rotatably to each other between their grip portion and their branch portion. Each of the two grip portions is adjoined by a respective spring portion for connecting the two grip portions such that the two lever elements are held resiliently in an open position. To create an easily manageable, elegant and releasable connection for spring ends on surgical instruments, the handheld instrument includes a hinge pin at a free end of one spring portion and a bearing eye at a free end of the other spring portion. The bearing eye has a longitudinal slit for radial insertion of the hinge pin into the bearing eye.

Abstract: A medical sterile container includes a tray-like first container part, a lid-type second container part, a fastener and a ventilation valve to ventilate a container interior surrounded by the first container part and the second container part. The fastener is mounted on one of the container parts so as to be pivotable between a closed position, in which the container parts are locked to one another by the fastener, and an open position in which the container parts are unlocked.

Abstract: A chip-removing tool of a surgical torque-transferring instrument includes a distal engagement segment which is adjoined by a tool shaft whose proximal end portion is prepared for a torque-transferring insertion into a tool mounting of the instrument. The proximal end portion is subdivided at least in a functional section “torque transmission” and a functional section “axial locking” which is axially spaced therefrom. The functional section “axial locking” is arranged with respect to the engagement segment so as to be proximal relative to the functional section “torque transmission”.

Abstract: A surgical instrument includes a handpiece to which a handpiece shaft can be flanged, and a tool mounting for receiving a tool which can be rotatably supported in the handpiece shaft for axially securing the tool in the tool mounting and for transferring a torque to the tool. The tool mounting includes a sleeve-shaped entrainment shaft with a plug-in zone for a torsion rod and torque transmission and axial locking zones for the tool. The tool mounting also includes a closure sleeve surrounding the entrainment shaft that includes a distal blocking section which acts on the axial locking zone of the entrainment shaft for axially locking and releasing the tool, and a proximal arresting section acting on the plug-in zone of the entrainment shaft for arresting the tool mounting on the torsion rod to transfer torques and axial forces and for releasing the tool mounting from the torsion rod.

Abstract: An electrosurgical device for cutting and sealing tissue includes an upper jaw located at a distal end of the electrosurgical device that opposes a lower jaw. The lower jaw is pivotally connected to the upper jaw by a pivot connection. The pivot connection includes a passage that contains a portion of the upper jaw. The upper jaw is axially displaceable through the passage to pivot the upper jaw relative to the lower jaw between a relatively open condition and a relatively closed condition. The upper jaw and lower jaw are operable in the relatively closed condition to deliver RF energy to tissue.

Abstract: The invention relates to a surgical retractor, in particular, for spreading a severed sternum, comprising a first retaining device and a second retaining device, which each have a spreader arm with at least one retaining element held thereon, a holding device for holding the retaining devices on each other, and a drive device with which the distance of the spreader arms from each other along a retraction direction is alterable for transfer to a spread position. In order to provide a retractor of this kind which, having a compact design, is easy to handle, it is proposed in accordance with the invention that the retaining devices each have a holding arm connected to the respective spreader arm, and both holding arms couple with the drive device and be displaceable via the drive device relative to each other and relative to the holding device along a displacement direction.

Abstract: An electrosurgical instrument includes mutually movable instrument legs each comprising one or more electrode faces between which tissue can be clamped and treated in electrothermal manner. The movement of the instrument legs relative to each other can be delimited by at least two spacers which are spaced from each other in the longitudinal extension of the instrument legs and act on the instrument legs. At least one electrode face portion subjected to deflection in a closed position of the instrument legs is formed to be bow-shaped, in particular concave, the curvature being contrary to the bending direction to be expected.

Abstract: Medical instrumentation is provided, in particular for implanting a hip joint stem, which includes a rasping instrument having a rasp stem defining a longitudinal direction. The rasp stem has at least two depth stops arranged or formed thereon. An implantation set is also provided which includes such a rasping instrument.

Abstract: A surgical clip includes two clip branches, each clip branch having a clamping portion, an actuating portion, and a flexural spring arrangement by which the two clip branches are coupled to each other preferably in one material piece. The flexural spring arrangement includes a coupling device by means of which selected portions of the flexural spring arrangement can be short-circuited for spring biasing and possibly for varying, preferably reducing, the active total spring length thereof.

Abstract: A flexible container, system and method of manufacture can include an in-line system that allows flexible containers of varying sizes to be manufactured in a single relatively high speed and efficient production line and in a single clean room through the use of transport and exchange equipment configured to adeptly handle flexible containers throughout the process.