563 results about "Drill guide" patented technology

A method and apparatus for fixation and correction of spondylolisthesis anteriorly includes a disk cage which is inserted into the space between adjacent vertebrae, a drill guide for guiding and aligning a drill bit to angle an opening anteriorly between adjacent vertebrae, a distractor for temporarily aligning the vertebrae to position a disk cage and an elongated hollow screw positioned in said drilled opening through one vertebra, said disk cage and into said adjacent vertebra.

A system for use during a medical or surgical procedure on a body. The system generates an image representing the position of one or more body elements during the procedure using scans generated by a scanner prior or during the procedure. The image data set has reference points for each of the body elements, the reference points of a particular body element having a fixed spatial relation to the particular body element. The system includes an apparatus for identifying, during the procedure, the relative position of each of the reference points of each of the body elements to be displayed. The system also includes a processor for modifying the image data set according to the identified relative position of each of the reference points during the procedure, as identified by the identifying apparatus, said processor generating a displaced image data set representing the position of the body elements during the procedure. The system also includes a display utilizing the displaced image data set generated by the processor, illustrating the relative position of the body elements during the procedure. Methods relating to the system are also disclosed. Also disclosed are devices for use with a surgical navigation system having a sensor array which is in communication with the device to identify its position. The device may be a reference frame for attachment of a body part of the patient, such as a cranial reference arc frame for attachment to the head or a spine reference arc frame for attachment to the spine. The device may also be a localization frame for positioning an instrument relative to a body part, such as a localization biopsy guide frame for positioning a biopsy needle, a localization drill guide assembly for positioning a drill bit, a localization drill yoke assembly for positioning a drill, or a ventriculostomy probe for positioning a catheter.

An intervertebral disc space preparation guide comprises a first member and a second member. The first member includes a first spacer portion adapted for insertion in an intervertebral disc space and a first cutting block portion through which a first bore extends. The second member includes a second spacer portion adapted for insertion in an intervertebral disc space and a second cutting block portion through which a second bore extends. The first member is movably connected to the second member.

A tool set for preparing a joint, inserting an implant or removing an implant from a joint in an open or less invasive procedure generally comprises a set of nested tools, pin guides, jigs, and / or immobilization elements. The nested tool set comprises at least one pin and at least one cannulated tool. In some embodiments, the cannula can comprise tangs that project from the distal end of the cannula. The tangs can be offset such that drilling would remove different amounts of bone relative to drilling through a centered drill guide. The cannulated tool kit generally can comprise at least one tool guide / cannula, drill bits / reamer, syringe, and / or inserter. With the pin positioned into the joint, at least one cannula is positioned over and around the pin. The channel of the cannula guides the other tools into the joint. A plurality of cannulae in a nested arrangement can be used to afford selectively sized channels for tools and / or implants based on selected cannulae configuration. Jigs can be used to facilitate the procedure. Multiple implants can be placed to immobilize the joint.

A drill guide system comprising:a hemispherical cup having an opening therein;a body having a distal end, a proximal end and a lumen extending between the distal end and the proximal end; anda connector for connecting the body to the hemispherical cup so that the lumen at the distal end of the body is aligned with the opening in the hemispherical cup.

An acetabular instrument alignment guide for aligning at least one orthopaedic instrument relative to an acetabulum in a pelvis. The acetabular instrument alignment guide includes an interchangeable head configured for positioning within the acetabulum where the interchangeable head has a primary axis. A drill guide is releasably connected to the interchangeable head. The drill guide includes a drill bore offset from the primary axis, and the drill bore is configured for aligning a drill relative to the pelvis. The acetabular instrument alignment guide further includes at least one reference pin and an instrument guide connected to the at least one reference pin, the instrument guide being both rotatable and translatable relative to the at least one reference pin. The reference pin is configured for placement in at least one hole in the pelvis produced by the drill.

One embodiment of an alignment apparatus for aligning an object, such as a tool or other implement, perpendicular with respect to a horizontal or a vertical target surface, comprises a three-axis accelerometer and at least two forward-facing distance sensors and a projection display comprising four addressable laser projectors. The accelerometer and distance sensor outputs are mapped to a predefined graphic symbol representing the orientation of the tool relative to the target surface, in particular when the tool is perpendicular to the target surface. The projection display projects the predefined symbol onto the target surface where it may be easily viewed by the tool operator allowing the operator to make any necessary corrections to the tool position.

An artificial spinal disc is provided for unilateral insertion from the posterior side of the patient and includes a pair of plate members with a bearing associated with one plate member and a depression associated with the other for permitting limited flexibility of patient movement. An outrigger is provided which includes rods extending through the pedicles on one side of each of two adjacent vertebrae and posts connected to the rods which provide an artificial facet joint. A method of insertion of the artificial spinal disc hereof includes cutting channels for receiving longitudinally extending ribs on the plate members and removing the natural facet joint in order to permit insertion of the artificial spinal disc. A tool for insertion of the artificial spinal disc acts as a drill guide for creating a passage through the pedicles.

A modular drill guide for use in securing a spinal fixation plate to a spine is provided. The drill guide generally includes a shaft having a proximal end and a distal end adapted to engage a spinal fixation plate, and at least one guide member removably and replaceably matable to the shaft. The guide member can have a connector member with at least one bore extending therethrough for receiving at least a portion of the shaft, and at least one barrel formed thereon and defining a lumen for receiving a tool, such as an awl, a drill bit, a fastener, or a driver device. The shaft can optionally be coupled to an elongate member having a proximal end and a distal end. The barrel(s) include a bore formed therethrough for receiving a tool.

A keyhole drill guide stabilizer for stabilizing a drill guide when forming a second keyhole after the formation of a first keyhole, wherein the drill guide comprises a first drill bore and a second drill bore, the keyhole drill guide stabilizer comprising a body sized and shaped so as to make a close sliding fit with (i) the first bore of the drill guide, and (ii) the first keyhole, whereby to reduce the possibility of any positional variation between the first and second drilled keyholes.

An integrated prosthetic assembly for implanting a prosthetic joint between two bones and including at least one ligament graft. The assembly includes a plurality of joint components, a plurality of base components, and at least one drill guide keyed to one of the base components at a predetermined angle for forming a predetermined tunnel in one of the bones.

An all-inside double-socket ACL reconstruction technique, according to which a femoral socket and a closed tibial socket are provided to accommodate retrograde fixation of at least one graft (for example, a semitendonosus allograft) within the sockets. The closed tibial socket is formed by using a retrograde drill device provided with a retrograde drill cutter detachable from a retrograde drill guide pin. The femoral socket may be formed by the retrograde drill method or by a conventional method, and may be carried out before or after the formation of the tibial socket. The graft is secured in the knee by employing a transversal implant, or by employing an interference screw, and / or a continuous loop / button construct.

A drill guide for aligning a guide pin. In an embodiment, the drill guide comprises a base having a concave inner surface, an outer surface, and a central axis perpendicular to the inner surface. In addition, the drill guide comprises a drilling template extending axially from the outer surface of the base along the central axis. The drilling template includes a plurality of through-bores. Further, the drill guide comprises a first curved member extending along a central longitudinal axis from a fixed end integral with the base to a free end distal the base, and a second curved member extending along a central longitudinal axis from a fixed end integral with the base to a free end distal the base. The first curved member and the second curved member are angularly spaced about 180° apart relative to the central axis and include an elongate locking slot.

A surgical template for performing dental implant osteotomies comprises a malleable, resinous, thermoplastic base, at least one non-thermoplastic, rigid drill guide attached to the base, and a securing mechanism between the base and the drill guide. The template may reversibly melt to a malleable state and can be handled by hand without additional tools so as to conform to the adjacent teeth of the edentulous ridge, either directly in the patient's mouth or on a cast model. Dental osteotomies using the template can then be performed. The surgical template may be manufactured of a thermoplastic material having a sharp and low melting point but high rigidity in the solid state at room temperature.

A drill guide assembly for a drilling tool having a chuck engaging a bit portion comprising a tip and a length extending from the chuck, the drill guide assembly comprising a first member, a second member and a trackable member. The first member is adapted to abut a workpiece surface and defines a central aperture therethrough adapted to receive the bit portion of the drilling tool. The second member is adapted to be axially displaced with respect to the first member and is axially biased therefrom, and defines a central aperture therethrough adapted to receive the bit portion of the drilling tool. The trackable member, fastened to the second member, comprises a detectable element adapted to be located and tracked in three dimensional space, thereby defining the position and movement of the second member and therefore that of the bit portion of the drilling tool.

A robot-guided system to assist orthopaedic surgeons in performing orthopaedic surgical procedures on pre-positioned inserts, including for the fixation of bone fractures, and especially for use in long bone distal intramedullary locking procedures. The system provides a mechanical guide for drilling the holes for distal screws in intramedullary nailing surgery. The drill guide is automatically positioned by the robot relative to the distal locking nail holes, using data derived from only a small number of X-ray fluoroscopic images. The system allows the performance of the locking procedure without trial and error, thus enabling the procedure to be successfully performed by less experienced surgeons, reduces exposure of patient and operating room personnel to radiation, shortens the intra-operative time, and thus reduces post-operative complications.

A surgical method and apparatus for implanting a spinal fusion implant includes a rigid centering guide having a distal end sized to be inserted into the disc space with the guide extending along a longitudinal axis from a distal end to a proximal end. The guide includes a first external guide surface which extends at least partially between the distal end and the proximal end. The external guide surface is shaped complimentary to an external guided surface of a drill guide. The external guide surface and the guided surface are nested such that the guided surface slides against the external guide surface along a path of travel parallel to the longitudinal axis.

A cannulated offset drill guide and surgical methods for repairing Bankart lesions. The cannulated offset drill guide comprising a shaft which is offset from the guide center line by about 1 to 3 mm, more preferably of about 1.5 mm. The cannulated offset drill guide is provided at its proximal end with a concave clear tip which allows a surgeon to visualize the drill and the insertion of an anchoring device, for example a suture anchor. The concave clear tip has beveled, smooth edges to prevent damage to adjacent bone and tissue, and to avoid damage to the rubber dam of the cannula through which the offset drill guide is inserted. The configuration of the concave clear tip is designed to engage and match the generally convex-curve articulating face of the glenoid, and to precisely aligning the offset drill guide with the glenoid face. The clear tip may also be employed in a standard drill guide having a shaft which is not offset from the center line of the guide.

A drill guide with integral drill bit is provided for drilling a hole into bone. The drill guide may have a housing for engaging a screw hole of a bone plate to fix the trajectory of the drill guide and drill with respect to the bone plate. An adjustable stop assembly is also provided and is axially slidable along the drill bit. The adjustable stop has a drill bit engaging mechanism to selectively lock the adjustable stop to the drill bit at a desired location to limit the depth that the drill may penetrate into the bone.

A method for fusing a spinal facet joint and a surgical kit for use therein. The kit preferably comprises an allograft implant, a facet finder, a drill, a drill guide, and an implant inserter. The method preferably comprises the steps of locating the facet joint with a facet finer, sliding a drill guide over the facet finder until the drill guide engages the facet joint, removing the facet finder from within the drill guide, inserting a drill through the drill guide and drilling a socket within the facet joint to a predetermined depth, removing the drill from within the drill guide, securing an allograft implant within an implant inserter, inserting the implant inserter through the drill guide until the implant engages the socket, tapping the implant inserter to push the implant completely within the socket, removing the implant inserter from within the drill guide, and removing the drill guide.

A bone fixation system including a bone plate and surgical drill guide is provided. The drill guide assembly includes one or more alignment drill tubes that are remotely aligned with corresponding fastener holes in the bone plate, and a plate holder to engage a hole in the bone plate. The surgical drill guide is releasably lockable to the plate holder.

Bone plating implants, instruments, systems and methods for fracture fixation are provided. The systems includes the instruments and implants comprising a trial component, handle, aiming block, bone plate, tissue spreader, drill guide, K-wire guide, monoaxial screw-locking inserts, polyaxial screw-locking inserts, cable plugs, K-wires, monoaxial screws and polyaxial screws. The methods include the use of the instruments and implants for either open or minimally invasive fracture fixation surgery.

A tibial resurfacing system is provided that includes a drill guide, bone chisel and implant. In one aspect, the system includes a drill guide that includes a targeting ring that is shaped to be placed on the superior tibial surface and a bore section that is connected to the ring to create an axis through the tibia to the superior tibial surface in the vicinity of the targeting ring. The drill guide permits a drill pin and / or drill to be advanced through the tibia to the superior tibial surface. In another aspect, a bone chisel is provided that includes an elongated tubular structure having a first end and a bone-cutting end, and the bone-cutting end is terminated in a transverse angle thereby creating an elliptical bone-cutting face. In another aspect, an implant is provided that includes an angled bearing element formed of a cylindrical member having a first end and a second end. The first end is formed at an angle that creates an elliptical face of the first end, and the first end defines a load-bearing surface of an articular surface.

A bone cutting guide block has a cutting tool guide surface and a navigation mount for a navigation tracker component for computer aided positioning of the guide for a resection procedure. In various embodiments, the guide includes a rotation means. Preferably, a swivel with a pivot apparatus is provided to limit rotation to permit controlled flexion-extension angle about the pivot with respect to the cutting guide surface. A fixing member through the swivel permits for varus-valgus adjustment of the guide surface. Optionally, a positioning actuator and / or biased resistance actuator implements more regulated flexion-extension angle adjustment with the swivel. Various traversing mechanisms, such as a threaded wheel or pivoted cam tool permit controlled proximal-distal adjustment of the cutting guide surface.

Surgical procedures, tools and implants are disclosed for both conventional and reverse shoulder implant surgeries. The improved procedures, tools and implants relate to humeral head resurfacing, humeral head resection for standard implants, humeral head resection for reverse shoulder implants, glenoid resurfacing for standard shoulder implants and glenoid resurfacing for reverse shoulder implants. 3D scans and x-rays are used to develop virtual models of the patient anatomy, identify patient specific landmarks for anchoring guide wire installation blocks, templates and drill guides. 3D scans are also used to design patient specific tools and implants for the shoulder implant procedures and to pre-operatively determine the appropriate inclination and retroversion angles.

A tibial resurfacing system is provided that includes a drill guide, bone chisel and implant. In one aspect, the system includes a drill guide that includes a targeting ring and a bore section for creating an axis through the tibia to the superior tibial surface in the vicinity of the targeting ring. In another aspect, a bone chisel is provided that includes a bone-cutting end, having a transverse angle creating an elliptical bone-cutting face. In another aspect, an implant is provided that includes an angled bearing element formed of a cylindrical member having a first end defining a load-bearing surface, and a second end. The first end is formed at an angle that creates an elliptical face of the first end.

Methods and apparatus for arthroscopic tenodesis using sockets in bone created by retrograde cutting. A cannulated pin is drilled through bone and into a joint space in the normal, antegrade direction, guided by a drill guide. A strand provided through the cannulated pin is used to draw a retrodrill cutter into the joint space. The retrodrill cutter is threaded onto the cannulated pin, which is turned for retrograde cutting of a socket into the bone. The method is used to form a pair of sockets in the joint, which accept the respective ends of a replacement graft. The graft is brought into position in the joint space using loops formed in the strands, in a manner similar to introduction of the retrodrill cutter. The reconstruction is completed by securing suture attached to the graft ends with a button implant installed at the bone surface.