Abstract: A device and methods for intervertebral spinal fusion of adjacent intervertebral bodies. An intervertebral spacer is positioned within a narrow disc space between adjacent intervertebral bodies of a patient. The spacer is arranged with upper and lower guides. The guides are adapted to simultaneously guide the deployment of upper and lower anchors of an anchoring device into their respective intervertebral bodies. The spacer is also adapted to lock the upper and lower anchors to the spacer in the deployed position.

Abstract: A system for performing minimally invasive procedures in a working space within a body lumen of a patient including a flexible catheter configured to receive a working instrument therethrough. The flexible catheter has a working space expanding system positioned at the distal portion, the working space expanding system including first and second flexible elements movable from a non-expanded insertion position to an expanded position forming an expanded region to expand the working space within the body. The first and second flexible elements are connected at a distal region by a coupling structure. A stabilizing member stabilizes the distal portion of the flexible catheter.

Abstract: The invention features improved bone screws, a delivery manifold for delivering a flowable medium to a bone screw, and washers for use with the bone screw to provide compressive fixation. The invention also features methods of treatment using the bone screws, washers, and/or delivery manifold, and kits that include the same.

Abstract: A bone reduction instrument includes first and second members moveably coupled to each other such that ends of the first and second members are positionable in first and second positions. In the second position the first and second members are closer to each other than in the first position. The instrument also includes a support member disposed at the end of the first member and includes a plate retaining portion extending from the first member in a direction toward the second member. The plate retaining portion includes wall portions that define a space therebetween configured to receive a bone plate so that the bone plate is held between the wall portions when the bone plate is disposed within the space.

Abstract: An anchor bolt driver device for fixing and removing anchor bolts utilized in neurosurgery. The anchor bolt driver device has a handle portion and a shaft extending therefrom. A socket of a predetermined configuration is formed at the terminal end of the shaft and a pin structure having a predetermined configuration extends outward and axially through the socket. The socket and pin structure are constructed and arranged to receive an anchor bolt for the threading engagement with the skull of a patient.

Abstract: Various surgical instruments and their methods of use are disclosed. The surgical instruments are designed to provide tactile, auditory, and/or visual confirmation to the surgeon that the surgical instrument is being used appropriately and/or fully in accordance with a surgical procedure.

Abstract: A bone fixation device (1) comprises an elongated member (2) and a washer (3) assembled in a manner to prevent relative longitudinal displacement at the same time allowing axial rotation of the washer (3) with respect of the elongated member (2). The elongated member (2) comprises a proximal head (4) and an elongated shaft (5). The proximal head (4) comprises at least a distal spherical portion (8) having a diameter (D) and defining a maximum transversal dimension (Dh) of the proximal head (4). The washer (3) has a central cavity (14) configured to seat the proximal head (4) and comprising a central spherical portion (15) having the same diameter (D) of the distal spherical portion (8) of the proximal head (4). The central spherical portion (15) extends between a distal rim (16) and a proximal rim (17).

Abstract: An apparatus and modeling method of the present invention includes the successive steps of generating cartographic data representative of points belonging to a glenoid surface; distinguishing from among the cartographic data a first group of cartographic data corresponding to a first part of the glenoid surface, the first surface part being situated farthest down in the vertical direction in relation to the scapula; calculating from the first group of cartographic data a first ellipsoid portion that coincides substantially with the first surface part; and obtaining a theoretical glenoid surface from the first ellipsoid portion. By virtue of the theoretical glenoid surface obtained by this method, it is possible to assist the surgeon in optimizing the position of implantation of a glenoid component and to produce a glenoid component “made to measure” for the scapula that is to be fitted with a prosthesis.

Abstract: A coupling assembly for coupling a rod to a bone anchoring element includes a receiving part having a first end, a second end, a recess having a bottom for receiving the rod, and an accommodation space having an opening at the second end of the receiving part for accommodating a head of the bone anchoring element, and a retainer element configured to be inserted into the receiving part from the first end and to hold at least part of the head, the retainer element having a first portion and a spring portion compressible in an axial direction attached to the first portion. When the retainer element is in the accommodation space in a first position, the spring portion extends in the axial direction from the first portion of the retainer element to an axial position between the first end of the receiving part and the bottom of the recess.

Abstract: A spinal fixation system, the system including: an alignment assembly comprising: a fastening element; and a mating element configured to receiving the fastening element thereover and having a releasable connector, a fixation assembly comprising: a plate having an aligning aperture that allows the mating element to be received therethrough; and an implant configured to be received between adjacent vertebrae and releasably connect with the releasable connector, wherein the fastening element is configured to move along the mating element to engage with the plate.

Abstract: The present invention relates to an implant, to an instrument for implantation of the latter and to a method for manufacturing this implant which includes an elongated body (10) between a free end and a head (18) along a longitudinal axis on the one hand and turns (12) of at least one threading on at least one portion of said body (10) in proximity to the free end, along the longitudinal axis on the other hand, characterized in that the body (10) includes a longitudinal internal conduit (11) in at least one portion along the longitudinal axis, obtained by at least one first central machining operation parallel to the longitudinal axis and at least one second machining operation in a so-called transverse plane, not parallel to the longitudinal axis and crossing the wall of the body (10) as far as the longitudinal internal conduit (11) by making windows (15) communicating between said longitudinal internal conduit (11) and the outside of the body (10).

Abstract: In one embodiment, an anterior cervical transarticular fixation implant including a cervical plate including a central body, lateral wings that extend laterally outward from the central body, each lateral wing including a fastener opening configured to receive a fastener configured to thread into vertebrae, and locking mechanisms configured to selectively lock the fasteners in place.

Abstract: The invention relates to a surgical guide for receiving and guiding a surgical instrument, the guide including; an elongate body extending from a proximal end to a distal end, the elongate body including at least one aperture for receiving and guiding the surgical instrument; at least one positioning mechanism, the positioning mechanism adapted to be directly or indirectly connected to the body and adapted to engage or abut an anatomical location of a patient on which the guide is to be used. The guide is particularly useful in aiding canine tibial tuberosity advancement procedures.

Abstract: A prosthetic sternum device with a manubrium includes a plate and a device for attachment to ribs. Each of the devices for attachment to ribs includes an end for rigid connection to the plate and an end provided with a device for engaging with a rib. The plate further includes, in the upper region of same, two elements. Each element rigidly connects a pin and includes a polyaxial joint shaped to allow the multidirectional mobility of the pin.

Abstract: A dual compression and distraction tool for surgical operations, the tool including a first arm having a first pivot axis, a second pivot axis, a first lever, and a first dual purpose jaw, a second arm having a third pivot axis, a fourth pivot axis, a second lever, and a second dual purpose jaw, wherein, in a first position, the first arm is pivotably connected to the second arm such that the first pivot axis is merged with the third pivot axis, to form an distraction tool, and wherein, in a second position, the first arm is pivotably connected to the second arm such that the second pivot axis is merged with the fourth pivot axis, to form a compression tool.

Abstract: In one aspect, a surgical driver is provided that includes a driver shaft, a handle rotatably connected to the driver shaft, and a resilient, elongate pin extending transverse to the driver shaft. The pin is operably engaged with the driver shaft and the handle so that torque applied to the handle causes turning of the driver shaft. The pin is configured to deflect to limit the torque applied to the driver shaft.

Abstract: This invention relates generally to an instrumentation and implant system providing minimally invasive vertebral augmentation. The apparatus including an expandable membrane sized and configured to be located within a cavity in a patient's bone and having an interior volume for receiving bone filler material; a delivery cannula in communication with the membrane for providing bone filler material to the membrane; and an evacuation cannula in fluid communication with the membrane for receiving a portion of the provided bone filler material from the membrane.

Abstract: An intra-osseous support structure can be used to fixate opposed portions of bone. In some examples, the intra-osseous support structure is positioned in openings formed in adjacent portions of bones. Fasteners are inserted through the bone portions to secure the intra-osseous support structure in the bones. Depending on the application, one or more external bone plates may also be applied to the bone portions. The external bone plate may be in compression while the intra-osseous support structure is in tension under load in situ.

Abstract: A degradation controlled metal implant and methods of controlling the degradation of the implant. In one embodiment, the implant includes a body, one or more apertures, and one or more fastener blanks fixed within one or more apertures. In another embodiment, the implant includes a body of a first material and a second material plated in various patterns over the first material.

Abstract: Multi-function driver instruments and related methods are disclosed herein, e.g., for applying a fastener to a bone anchor. In some embodiments, a single instrument can include features for driving multiple different types of fasteners, independently driving multiple different components of a single fastener assembly, and so forth, with the instrument being switchable between multiple operating modes to select the feature needed for a particular function. The instrument can include features for retaining a fastener to the instrument, e.g., during initial insertion of the fastener.