Abstract: An apparatus can include a shaft having a mating end and a driving end and having an axial slot; a sliding member located within the axial slot; and an activator to advance the sliding member towards the mating end of the shaft; wherein the axial slot includes a surface proximate the mating end to move a distal end of the sliding member into a retaining position.

Abstract: The disclosure relates to an intervertebral disc implant comprising a first construct comprising a continuous layer of nucleus pulposus (NP) tissue directly or indirectly on and integrated with a substrate, and a second construct surrounding the first construct comprising one or more continuous layers of annulus fibrosus (AF) tissue on and adherent to a scaffold, wherein the AF tissue, which is composed of single or multiple adherent layers, is integrated with the NP tissue. The disclosure also relates to methods of preparing the multi-tissue intervertebral disc and using the intervertebral disc as an implant.

Abstract: The present application relates to a torque limiter (1) comprising a handle (2) with a mono-block cylindrical handle-body. The cylindrical handle-body includes a central through bore (3) having an axis (B) at a right angle to a longitudinal axis (A) of the cylindrical handle-body as well as a first pocket (4) and a second pocket (5). The first pocket (4) is arranged on a first side and the second pocket (5) is arranged on a second side of said cylindrical handle-body opposite of said first side. The first pocket (4) and the second pocket (5) are arranged along said longitudinal axis (A) and intersect each other in the area of said central through bore (3), each of said first pocket (4) and said second pocket (5) comprising at least one magnet (6a, 6b, 7a, 7b; 35). Further, the torque limiter (1) comprises a mono-block shaft (20) having a central shaft (21) removably arranged in said central through bore (3), said central shaft (21) having a drive (23) arranged at a first end.

Abstract: The present invention provides a circular bone tunneling device, comprising: a hollow elongate body comprising a hollow elongate body head, said hollow elongate body head defining a rigid circular arc, comprising a surgical needle; an extendable and retractable support element, reconfigurable from an extended configuration to a retracted configuration; said support element, in said extended configuration, adapted to be located along said path formed by said rigid circular arc; said support element and said hollow elongate body head are adapted to grasp said bone from at least two points along the circumference of said bone; a stabilizing element.

Abstract: Embodiments of the invention include instruments and methods for preparing a femur to receive a femoral component of a knee arthroplasty system, with some embodiments configured to enable anterior referencing techniques, posterior referencing techniques, and to facilitate intraoperative switching between anterior and posterior referencing techniques. Other embodiments of the invention include cutting blocks and methods for preparing a femur to receive a knee arthroplasty system femoral component, with some embodiments including cutting blocks that can be used in both an anterior referencing technique and a posterior referencing technique, thereby reducing the number of cutting blocks required to provide an instrument set capable of implanting all available sizes of femoral components with both anterior and posterior referencing techniques.

Abstract: A method and a device are provided, for measuring an actual length of a fractured bone based on 2D fluoroscopic images of proximal and distal sections of the bone, each of the images including a reference body. Based on the images, a spatial position of a first end point and a spatial position of a second end point are determined, taking into account dimensions taken from a bone model of a bone corresponding to the imaged bone and the spatial positions of the reference bodies. The actual length of the fractured bone is defined as the distance between the two end points.

Abstract: A posterior stabilized cruciate notch femoral cut guide shaped to fit over the distal end of a femur and including various cut guides to prepare the femur for a knee implant and methods for its use. Also described is a method for manufacturing the posterior stabilized cruciate notch femoral cut guide and various other cut guides and trialing instruments.

Abstract: This preparation set comprises a drill guide (31) comprising a bearing surface (33) intended to bear against a glenoid cavity, a passage orifice (35) intended for the passage of a guide pin (36) implanted in the glenoid cavity, and first and second guide orifices (37, 38) each opening into the bearing surface (33) and each intended to guide a drill bit (38) capable of realizing a bone bore in the glenoid cavity, the first and second guide orifices (37, 38) being inclined with respect to the extension axis of the passage orifice (35) and converging in the direction of the bearing surface (33); and a compactor (42) comprising a compaction portion (45) having a generally trapezoidal shape and intended to be impacted against the glenoid cavity so as to form a bone housing in the glenoid cavity, the compactor (42) further including a passage hole (49) extending at least partially in the compaction portion (45) and intended for the passage of the guide pin (36) implanted in the glenoid cavity.

Abstract: An implant having a receiver that is adapted to receive a polyaxial screw in the bore and either an internal or external cap. The cap can be an external or internal cap and the implant further has at least one locking aid in the form of at least one of a tactile feedback, a visual feedback or an enhanced fixation between the cap and a rod that is received in the receiver.

Abstract: An interbody fusion device including a body member, at least one side member engaging the body member, and at least one movement mechanism that engages at least one side member and the body member. A surgical method for maintaining a space between two vertebral bodies in a spine, including the steps of obtaining a medical device, such as an interbody fusion device, and inserting and coupling an expansion tool into an opening within the medical device. The surgical method also including slidingly inserting the medical device into a space between two vertebral bodies and rotating the expansion tool to move the at least one side member in a direction relative to the body member. The method may further include detaching the expansion tool from the medical device and removing the tool from the space between the two vertebral bodies in the spine.

Abstract: A surgical device comprising: a handpiece comprising a distal end and a proximal end; a chamber formed within the handpiece; a motor disposed within the chamber; an exhaust port in fluid communication with the chamber, the exhaust port being configured for attachment to a suction source so as to apply suction to the chamber; and at least one inlet port in fluid communication with the chamber, the at least one inlet port being configured to allow ambient air to be drawn into the chamber.

Abstract: The present invention relates to an implant system that comprises an implant, a handle configured to removably receive the implant, and, in some embodiments, a spacer tool configured to be mounted on the implant. In further embodiments, a k-wire is employed to guide the implant to a desired location. The handle has a hole for receiving a first portion of the implant. Using the handle to implant the implant, along with an associated spacer, provides a quick and convenient method for implanting the implant as described herein and in the associated drawings.

Abstract: A method of performing an operation, e.g. a spinal operation, on a patient using a retractor comprising a pair of blade assemblies which are adapted to open about a set of axes that are not parallel to a third spatial axis, and further comprising a pair of arms, which are adapted to move the pair of blade assemblies apart from one another in the third spatial axis. In the method, the blade assemblies are closed to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The blade assemblies are then opened by rotating the blades about the set of axes, stretching the skin around the incision in a second direction that is substantially perpendicular to the first direction (i.e. the direction of the incision.

Abstract: Implementations described and claimed herein provide a spinal facet cage implant for implantation in a spinal facet joint. In one implementation, the implant includes a distal leading end, a proximal trailing end, a first face, and a second face. The distal leading end has a distal surface generally opposite a proximal surface of the proximal trailing end. The first face has a first surface that is generally parallel with a second surface of the second face. The first and second faces extend between the distal leading end and the proximal trailing end. The first and second surfaces having one or more textured features adapted to provide friction with the spinal facet joint. One or more windows are defined in the first and/or second surfaces, and one or more side windows are defined in the first and/or second side surfaces.

Abstract: Implants for the fusion or fixation of two bone segments are described. For example, the implants can be used for the fusion or fixation of the sacroiliac joint. The implants can include fenestrations, have a rectilinear overall cross-sectional area, and have a curvature. Some implants can also be used to rescue failed implants.

Abstract: Methods and devices for retracting tissue in a surgical procedure to allow access to the surgical site. Retractor systems and methods that comprise a retractor frame comprising rotatable arms and a linearly translatable arm, the rotatable arms and the linearly translatable arm each coupled to blades that can angulate.

Abstract: A hollow celiac minimally invasive surgery endoscopic channel may include an extracorporeal combined platform and an intracorporeal expandable shell body. The combined platform and the intracorporeal expandable shell body may be engagingly combined into a detachable structure. The intracorporeal expandable shell body may be in a triangular frustum shape. A portion of the intracorporeal expandable shell body that is located below the triangular frustum surface may be a two-layer structure body. Partition stiffeners that are distributed horizontally may be provided between an inner and outer layers at each face of the shell body. An inflation port may be disposed at the inner layer.

Abstract: An augmentation method is provided, wherein a thermoplastic augmentation element is subject to mechanical energy impact and mechanical pressure by a tool so that augmentation material of the augmentation element is liquefied and pressed into hard tissue to augment the hard tissue, wherein in at least one axial depth, the augmentation element is segmented as a function of the circumferential angle so that at this axial depth the circumferential wall of the initial opening in first regions is in contact with the augmentation element and in second regions is not in contact with the augmentation element.

Abstract: Devices and methods for identifying and maintaining the concentric spherical centers of a femur and acetabulum during revision or joint replacement surgery so that post surgery the anatomical spherical centers are maintained. Also disclosed are novel techniques and devices to project images onto an anatomical feature, such as exposed bone, to virtually fit trial prosthetic components, establish bone cut markings, and establishing the anatomical spherical center of a joint.

Abstract: An orthopedic surgical instrument and method for positioning an acetabular prosthetic component in a patient's surgically-prepared acetabulum is disclosed. The orthopedic surgical instrument has a base configured to engage the patient's pelvis, a first linkage pivotally coupled to the base, a locking mechanism operable to lock the first linkage in position relative to the base, and a second linkage removably coupled to the first linkage. The second linkage has an alignment axis corresponding to a desired abduction angle and a desired anteversion angle of the acetabular axis of the acetabular prosthetic component.