A method and system to align a pin or drill a tunnel along a single line in space with a two degree of freedom (2-DOF) surgical device in a patient is provided. A plane is defined relative to a desired location for an implant or tunnel on a bone, where the implant or tunnel has an axis. An end-effector of the 2-DOF surgical device is aligned coincident with the plane, and the 2-DOF surgical device is moved side-to until a first indicator signals when the end-effector aligns with an entry point for the desired location for the implant or tunnel on the bone. A tip of the end-effector is anchored into the bone at the entry point; and the 2-DOF surgical device is rotated about the anchored tip until a second indicator signals when the end-effector aligns with the axis of the implant or tunnel at the desired location.

A surgical system includes an instrument portal comprising a first proximal end, a first distal end, and a first elongated member, the first elongated member comprising a first bore defining a first diameter, wherein the first bore extends from the first distal end to the first proximal end, wherein the maximum clearance of the instrument portal is the first diameter, and a drill guide reducer configured to be inserted into the instrument portal, the drill guide reducer comprising an elongated cylindrical member defining an outside diameter such that the drill guide reducer is sized to fit within the instrument portal and defining an inner diameter configured to receive a drill guide, wherein the inner diameter of the drill guide reducer is smaller than the first diameter of the instrument portal.

A magnetic screw device that includes a fastening stem, a housing, a magnet assembly, and one or more magnets. The housing is configured to receive the fastening stem, such that the housing can rotate and angulate relative to the fastening stem. The housing is also configured to secure the magnet assembly. The magnet assembly contains two magnet holders that are each configured to receive one of the two magnets. The magnetic screw device can be used in a method of treating a spine with an abnormal curvature.

A method may be provided to operate a medical system. First data may be provided for a first 3-dimensional (3D) image scan of an anatomical volume, with the first data identifying a blood vessel node in a first coordinate system for the first 3D image scan. Second data may be provided for a second 3D image scan of the anatomical volume, with the second data identifying the blood vessel node in a second coordinate system for the second 3D image scan. The first and second coordinate systems for the first and second 3D image scans of the anatomical volume may be co-registered using the blood vessel node identified in the first data and in the second data as a fiducial.

A surgical instrument enables dispensing of a series of fasteners within a patient's body. The device includes a magazine sized and dimensioned to hold a series of fasteners, the series of fasteners insertable through an opening at the end of the magazine. A splined guide bore is rotatably supported within the magazine, and slidingly supports a shaft having an external surface mateable with the splined guide bore to restrict radial rotation of the shaft with respect to the support about said longitudinal axis. A biasing element is connected between the support and the shaft, to urge the shaft along a longitudinal axis towards a distal end of the instrument. A ratchet is connected to the shaft and engages the magazine to permit sliding of the shaft in a direction for dispensing fasteners only, unless disengaged with the magazine.

An instrument includes an outer sleeve, an inner sleeve positioned in the outer sleeve, a latch coupled to the inner sleeve, a knob coupled to the inner sleeve and a lever coupled to the knob and to the latch. An inner sheath extends through an outer sheath and includes an end positioned between the inner sleeve and the shaft. The inner sheath includes a groove. The knob is movable relative to the inner sleeve to move the instrument between a first orientation in which the latch is positioned in the groove and the inner sheath is prevented from translating relative to the inner sleeve and a second orientation in which the latch is spaced apart from the groove and the inner sheath is translatable relative to the inner sleeve. Systems, implants and methods are disclosed.

Bone anchors and surgical instruments (e.g., bone taps, drivers, etc.) are disclosed herein that include integrated guide tips. Use of these anchors or instruments can eliminate one or more of the steps in a conventional bone anchor installation procedure, improving surgical efficiency and safety. For example, a surgical instrument can include a guide projection configured for insertion through a cannulation formed in a bone anchor when the surgical instrument is coupled to the bone anchor. The surgical instrument can also include various mechanisms for adjusting the position of the guide projection relative to the bone anchor. The guide projection can replace the needle, stylet, and guidewire used in typical insertion procedures. The bone anchor can also include integrated tapping features to eliminate the need for a separate bone tap instrument. Thus, in some embodiments, targeting, tapping, and driving the bone anchor can be performed in a single step.

The invention relates to a surgical tool and method for forming a pilot bore by inserting a guide wire into bone. The surgical tool is also constructed to insert a bone screw that is preloaded onto the surgical tool with a guide wire extending along the longitudinal axis of the bone screw. This construction allows the guide wire and the bone screw to be located and placed without removing the tool from the surgical site. More particularly, the device includes a cannulated hand grip and driving tool used for the rotation of a pedicle screw into bone. The rear portion of the hand grip includes a slide assembly that is suited to grip a guide wire. The slide assembly includes a T-handle to control the sliding movement of the guide wire. The rear surface of the slide is constructed to be impacted with a hammer or similar device.

A pivotal bone anchor assembly includes a shank having a shank head with a partial spherical shape at a proximal end and an anchor portion opposite the shank head for fixation to the bone of a patient. The assembly also includes a receiver having an upper portion defining a channel for receiving an elongate rod and a base defining a cavity in communication with the channel and with a bottom surface of the receiver through a distal opening. The assembly further includes a retainer positionable into non-rotatable and non-pivotal engagement with an inner surface of the cavity prior to the shank head being received within the cavity, with the retainer having a central opening configured to receive and capture the shank head within the cavity while allowing for pivotal motion between the shank and the receiver in at least one plane, and with a lower portion of the retainer extending below the bottom surface of the receiver.

A spinal implant, in the form of a multi-part connection device that couples a fastening element to a connection element, including a first part formed as a bracket, which has a receptacle for a part of the fastening element, and a second part in the form of a tulip, which has, in an axially upper region, a receptacle for the connection element and surrounds the bracket receptacle in an axially lower region. When the bracket is assembled in a predefined orientation in the tulip, the bracket can be axially moved in the tulip such that, when moved towards the upper region, in a receiving position the bracket can receive the part of the fastening element, and such that, when moved towards the lower region, in a holding position the bracket is no longer able to release the received part of the fastening element. An axial guide, for providing the axial movability, includes a projection region on the face of the bracket that is outside when viewed radially, which projection region engages in a cut-out region in the face of the tulip that is inside when viewed radially. The end regions, viewed azimuthally, of which projection region are spaced apart by at least 18°. An axial lock prevents the projection region from axially exiting the cut-out region towards the upper region, and a rotary lock prevents the projection region from rotationally entering the cut-out region and, when assembled, prevents the projection region from rotationally exiting the cut-out region.