Abstract: A retractor includes a first arm, a second arm, and a translating member. The first arm comprises a proximal portion configured to retain a first retractor member and a distal portion configured to rotate relative to the proximal portion about a first axis. The second arm is configured to retain a second retractor member, such that rotation of the distal portion about the first axis causes the first retractor member to pivot toward or away from the second retractor member when the first retractor member and the second retractor member are coupled to the first arm and the second arm, respectively. The translating member is coupled between the proximal portion and the distal portion, and is configured to receive a drive force that causes the translating member to bias the distal portion to pivot relative to the proximal portion about the first axis.

Abstract: A flexible marker system for use with a computer-assisted surgical (CAS) tracking system is disclosed. The system includes a rigid frame or instrument having a plurality of coupling locations each configured to position a navigation marker in a predetermined position and a flexible array configured to be coupled with the rigid frame or instrument. The flexible array can include an elastically deformable body and a plurality of navigation markers, where the flexible array is configured to be coupled to the rigid frame or instrument by stretching the elastically deformable body over the rigid frame or instrument such that each of the plurality of navigation markers is positioned at one of the plurality of coupling locations of the rigid frame or instrument.

Abstract: An example method is provided for maintaining stability to an injury defined by a separation of two bones (e.g., the tibia and fibula), the separation being an injured distance greater than a pre-injury distance between the two bones in a first human patient. The method may include delivering a first apparatus for approximation of the two bones in the first human patient comprising the injury, the first apparatus including a flexible segment disposed between a first anchor and a second anchor. The method may further include maintaining, by the first apparatus, a restored distance between the two bones in the first human patient after a repetitive dynamic loading, the restored distance approximately equal to the pre-injury distance.

Abstract: Methods and devices are provided for repairing a tear in a meniscus. A pair of fixation member each entailing a preformed knot configuration coupled together by a suture length. The fixation members are placed on the meniscal tissue with the suture length spanning the tear, the knot configurations are expanded to form anchoring knots and the suture length is shortened to close the tear.

Abstract: A number of low-profile metallic customized, patient-specific orthopaedic surgical instruments are disclosed.

Abstract: A bone plate comprises a plate body and at least one tab. The plate body defines an inner body surface configured to face an underlying bone, an outer body surface opposite the inner body surface, and an outer side surface that extends between the inner body surface and the outer body surface. The outer side surface defines an outer perimeter of the plate body. The at least one tab includes a head and an arm that extends from the plate body to the head. The tab defines a tab aperture that extends through the head and is configured to receive a bone anchor. The bone anchor can be coupled with a screw hole in the nail. The arm is configured to deflect with respect to the plate body so as to move the head between a pre-fixation position and a fixation position spaced from the pre-fixation position.

Abstract: A neurophysiological monitoring system includes at least one surgical instrument having at least one magnetometer and a control unit configured to receive magnetic field data generated by the at least one magnetometer. The control unit may provide stimulation to a nerve at a known stimulation time and receive magnetic field data from the at least one magnetometer indicative of a response to stimulation of the nerve at a receive time. An interpretation of the magnetic field data based upon the receive time and the stimulation time may be generated.

Abstract: A bone plate comprises a plate body and at least one tab. The plate body defines an inner body surface configured to face an underlying bone, an outer body surface opposite the inner body surface, and an outer side surface that extends between the inner body surface and the outer body surface. The outer side surface defines an outer perimeter of the plate body. The at least one tab includes a head and an arm that extends from the plate body to the head. The tab defines a tab aperture that extends through the head and is configured to receive a bone anchor. The bone anchor can be coupled with a screw hole in the nail. The arm is configured to deflect with respect to the plate body so as to move the head between a pre-fixation position and a fixation position spaced from the pre-fixation position.

Abstract: An expandable intervertebral implant is provided for insertion into an intervertebral space defined by adjacent vertebrae. The expandable intervertebral implant includes a pair of outer sleeve portions and an inner core disposed between the outer sleeve portions. Movement of the inner core relative to the outer sleeve portions causes the outers sleeve portions to deflect away from each other, thereby engaging the expandable intervertebral implant with the vertebrae and adjusting the height of the intervertebral space.

Abstract: Various systems and methods of deploying an implant to a target location of a body vessel are disclosed. A delivery system can include a delivery tube and a pull tube, the pull tube at least partially disposed within a first lumen of the delivery tube. A link wire with two proximal ends can be welded to the pull tube and a distal end of the link wire can include a link wire loop. A pull wire can extend through the first lumen with a distal end positioned to secure the implant to the delivery system. The pull wire includes a proximal bend positioned around the link wire loop such that the proximal bend is positioned in a proximal direction relative to the distal end of the link wire loop by a slack length. The slack length is effective to prevent premature detachment of the implant from the delivery system.

Abstract: A retrograde intramedullary nail for insertion in the medullary canal of a femur includes a body that is elongate and defines a leading end and a trailing end spaced from each other at a length sufficient to extend from an intercondylar region at least to a subtrochanteric region of the femur. The body further defines a leading portion that extends to the leading end. The leading portion defines at least one locking hole configured to receive a fixation member. The at least one locking hole defines a central hole axis that is oriented to extend through the neck and head of the femur.

Abstract: A dilation introducer for orthopedic surgery is provided for minimally invasive access for insertion of an intervertebral implant. The dilation introducer may be used to provide an access position through Kambin's triangle from a posterolateral approach. A first dilator tube with a first longitudinal axis is provided. An access cannula may be introduced over the first dilator tube. A drill may be inserted through the access cannula and used to perform a foraminoplasty, Surgical instruments may pass through the access cannula to operate on an intervertebral disc and/or insert an intervertebral implant.

Abstract: An articulating driver having a ball-in-socket joint. The driver may include a driver tip having a spherical head, a retention cap having a domed surface to mate with the spherical head, an input shaft, a spring disposed in an end of the input shaft and in a recess of the retention cap opposite that of the domed surface, and a housing that receives the input shaft, the spring, the retention cap and the spherical head. The housing may have a tapered end to positionally retain the spherical head therein. In another aspect, the driver may include a driver tip coupled to the input shaft that includes an interface to engage a screw. A bushing may engage the driver tip at one end and receive the screw at the other end to retain the screw within the driver.

Abstract: A bone fixation system includes a bone plate having an outer surface, an opposed bone-facing surface, and an interior surface that defines a hole extending from the outer surface to the bone-facing surface along a central hole axis. The interior surface further defines a compression surface. The system includes a bone fixation member having a shaft extending from a head along a central fixation member axis. The head has an exterior surface that defines a threaded head portion configured for variable angle locking with a complimentary variable angle plate locking structure. The compression surface and the threaded head portion are cooperatively configured to translate the bone plate in a direction substantially perpendicular to the central hole axis when the threaded head portion contacts the compression surface when the bone fixation member axis is offset from the central hole axis at an offset parameter as the head advances within the hole.

Abstract: Disclosed herein are various exemplary systems, devices, and methods for inhibiting premature implant deployment. The delivery member can include a body including a lumen extending therethrough, the body including a compressed distal portion. The delivery member can include a pull wire extending through the lumen. The pull wire can include a pull wire portion that extends radially to abut a sidewall of the body to provide frictional resistance against the body. The pull wire can be positioned to secure the implantable medical device to the delivery member, and the pull wire portion can be effective to inhibit premature detachment of the implant by inhibiting proximal translation of the pull wire due to the frictional resistance provided by the pull wire portion against the body.

Abstract: The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.

Abstract: An endoscopic device and system for image correction of a rotating sensor includes a hand-piece, a lumen comprising a distal tip, and an image sensor disposed within the lumen for providing visualization of an area. The image sensor is located near the distal tip of the lumen. The lumen is rotatable about an axis of the endoscope and with respect to the hand-piece. The endoscopic device and system further includes an image signal processing pipeline that is configured to rotate images to maintain a constant image horizon for a user on a display.

Abstract: The disclosure relates and extends to a light source having a strobing or pulsing sequence suitable for use with a CMOS sensor that does not require, have, or use a global shutter. Instead, the CMOS sensor synchronizes the strobing input with the blanking portion of the sensor readout pattern and disables the strobing during sensor readout, or when the strobing would otherwise leave artifacts in the image. The CMOS sensor freezes its readout during the strobing.

Abstract: Various systems and methods of delivering an implant to a target location of a body vessel are disclosed. A detachment system can include a tubular body including a lumen extending therethrough and a distal tube on a distal end of the tubular body. A loop wire can be affixed at a first end to the tubular body and can include a loop opening positioned approximate a distal end of the distal tube. A pull wire can extend through the lumen. A hook wire can extend radially through a sidewall of the distal tube and into the lumen. The hook wire can be positioned around a pull wire portion and tensioned such that the pull wire portion abuts the distal tube and provides frictional resistance between the pull wire portion and the sidewall of the distal tube. The frictional resistance can be effective to inhibit premature detachment of the implant.

Abstract: Systems, methods, and devices are described for high accuracy molded navigation arrays. In a first embodiment, a navigation array is formed by molding, as a single component, an array having a plurality of marker regions. The marker regions include a reflective layer disposed thereon. In other embodiments, a navigation array is formed by molding over a frame having a plurality of marker elements. In still other embodiments, a navigation array is formed by molding over individual marker elements. In certain embodiments, a navigation array is formed by molding a frame with a plurality of voids and subsequently molding marker elements into each void where the marker elements include a reflective layer disposed thereon. In some embodiments, a navigation array is formed by molding a plurality of marker elements on a frame and disposing a reflective layer on the marker elements.