3139 results about "Iliac screw" patented technology

An intraosseous system and methods for accessing a medullary cavity. The intraosseous system can include an access assembly and an advancement assembly. The access assembly can include an obturator assembly coupled to a needle assembly. The advancement assembly can include a housing having an inner wall and a drive screw coupled to an energy source. The drive screw can include a threaded portion extending from a drive screw head. The threaded portion can extend into the housing. The advancement assembly can further include an advancement nut threadably engaged with the threaded portion of the drive screw. The advancement nut can include an outer surface configured to slide along the inner wall a predetermined distance without rotating. The advancement assembly can further include a socket configured for attachment to the access assembly.

The present disclosure provides for spinal implants configured for lateral insertion techniques deployable between a contracted position and an expanded position. The spinal implant may include a first endplate and a second endplate, each having a plurality of guide walls and inclined ramps. The spinal implant may further include a moving mechanism having first and second trolleys configured to act against the first and second plurality of ramps. The moving mechanism may further include a first set screw and a second set screw opposite the first set screw. The moving mechanism may be configured to operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws along a rotation axis, and may also operably adjust an angle of inclination between the first and second endplates upon rotating the first set screw or second set screw along the rotation axis.

Systems and methods for providing assistance to a surgeon during an implant surgery are disclosed. A method includes defining areas of interest in diagnostic data of a patient and defining a screw bone type based on the surgeon's input. Post defining the areas of interest, salient points are determined for the areas of interest. Successively, an XZ angle, an XY angle, and a position entry point for a screw are determined based on the salient points of the areas of interest. Successively, a maximum screw diameter and a length of the screw are determined based on the salient points. Thereafter, the screw is identified and suggested to the surgeon for usage during the implant surgery.

Apparatus and methods are described for use in securing a first bone relative to a second bone using a pair of surgical staples or, alternatively, a surgical staple and a bone screw. When a pair of staples are used, one of the legs of one of the staples may pass between the legs of the another of the staples. When a staple and a bone screw are used, the bone screw may pass between the legs of the staple. A guide tool can be used during the drilling of the holes for the legs of the staples or the legs of the staple and a bone screw. The guide tool provides guides for drilling guide holes for the staples or for the screw and staple.

The invention relates to the technical field of orthopedic surgery, in particular to a system for automatically planning a screw channel range, which comprises a medical image acquisition module used for receiving and preprocessing CT, MRI and other medical images from medical equipment; the three-dimensional reconstruction module is used for performing three-dimensional reconstruction on the preprocessed two-dimensional medical image to generate a three-dimensional skeleton model; the multi-constraint path planning module is used for planning a candidate path set meeting anatomical and mechanical constraints in the three-dimensional skeleton model; the parameter calculation module is used for calculating path information of the candidate path set; and the visualization module draws a screw channel based on the path information and displays related parameters. The method has the advantages that the candidate path set meeting various anatomy and mechanical constraints can be planned in the three-dimensional skeleton model, the path length and the path included angle are calculated according to the candidate path set, the screw channel is drawn based on the path information, and the accuracy and safety of surgical planning are improved.

A periprosthetic plate and method of use are disclosed that includes a proximal segment having a top portion and an end portion with at least two curved hooks that are capable of passing through a patient's abductor muscles and rest medially on a tip of a patient's greater trochanter (GT), wherein the proximal segment includes a plurality of recessed bone screw holes. A periprosthetic proximal femur plate is disclosed that includes a head portion having at least six first polyaxial screw holes and a shaft portion connected to the shaft portion having a plurality of rows of at least two second polyaxial screw holes located at an angle from the horizontal from about thirty degrees to about sixty degrees. A combination periprosthetic proximal femur plate and greater trochanter (GT) plate construct is disclosed that includes a greater trochanter (GT) plate located on top of the periprosthetic proximal femur plate.

The embodiment of the invention is suitable for the technical field of computer-aided medical treatment and image processing, and provides an automatic planning device and equipment for a pedicle screw and a computer program product. Extracting vertebral body outer layer point cloud data of a to-be-planned single vertebral body from the spine image data; the prediction model is used for processing the centrum outer layer point cloud data and outputting prediction coordinates, and the prediction coordinates comprise entry point coordinates and exit point coordinates; and the planning unit is used for planning the placement position of the pedicle screw based on the entry point coordinate and the exit point coordinate. By adopting the device, the planned position of the pedicle screw can be quickly and accurately predicted by using the deep learning model based on the point cloud data of the outer layer of the vertebral body, the data volume needing to be processed in the planning process is reduced, and the planning efficiency is improved.

An expandable interbody device used as a prosthesis during spinal surgery. The expandable interbody device is configured to be inserted into the space between spinal discs to provide stability. The expandable interbody device includes a drive block, a top endplate, a bottom endplate, a first drive arrangement, and a second drive arrangement; the first drive arrangement includes a first drive screw, a first left side slide, a second left side slide, a first upper left side linkage, a second upper left side linkage, a first lower left side linkage age and a second lower left side linkage; and the second drive arrangement includes a second drive screw, a first right side slide, a second right side slide, a first upper right side linkage, a second upper right side linkage, a first lower right side linkage and a second lower right side linkage.

Bone anchor assemblies are disclosed herein that provide for a single bone anchor assembly that can be utilized across a range of spinal surgical procedures, reduce manufacturing burden and cost, and provide for greater flexibility during a surgical procedure. The bone anchor assemblies disclosed herein include an implantable shank and a receiver member having two spaced apart arms which form a U-shaped seat to receive a rod, among other components. The bone anchor assemblies disclosed herein also provide a number of features to enhance capability and usability. Examples include features to facilitate better implantation of the shank, better coupling of instrumentation to the anchor, better performance in reducing a spinal fixation element, such as a rod, into the receiver member seat, and others.

A system for correcting a lateral curvature of a spine that can include a plurality of screws configured to be implanted in a plurality of vertebrae, and a plurality of extensions configured to be removably coupled with the plurality of screws. Some embodiments of the plurality of extensions can be curved, bent, angled, and / or offset along at least a portion thereof and can be removably coupled with a screw head of each of the plurality of screws. The system can include a connecting element or rod that is configured to be coupled with the plurality of screw heads. Some embodiments of the system can be configured such that the rod can be guided along the plurality of extensions from the proximal toward the distal end portions of the extensions and into engagement with the plurality of screws to cause the plurality of vertebrae to move laterally.

The invention provides a cortical bone screw automatic planning method and device based on a statistical morphology model. The method comprises the following steps: acquiring CT image data of any object; based on the CT image data, segmenting point cloud information of a vertebral body to be subjected to screw placement; acquiring a statistical shape model and cortical bone screw planning information corresponding to the serial number; and registering the statistical shape model to the point cloud information, and determining a cortical bone screw plan of the vertebral body to be subjected to screw placement. In the application, the preset screw placement planning of the cortical bone screw is performed through the statistical shape model, and the preset screw placement planning is mapped to the current spinal column three-dimensional model through registration, so that the preset screw placement planning only needs to be performed on the statistical shape model, and a screw placement model is not needed, thereby solving the problem that a large number of cases need to be collected to realize the screw placement model; therefore, the problem of nail placement of the cortical bone can be solved.

The invention discloses a pedicle screw path planning method. The pedicle screw path planning method comprises the steps of S1, performing image segmentation on a spine structure model to obtain a 3D voxel map of a target vertebral body and a pedicle; s2, determining an initial screw radial direction and an initial screw radius by combining the 3D voxel maps of the target vertebral body and the vertebral pedicle; s3, optimizing the initial screw radial direction and the initial screw radius in combination with the vertebral pedicle point cloud to obtain a screw radial parameter and a screw radius parameter; s4, calculating coordinates of a screw inlet point and a screw outlet point of the pedicle screw based on the radial parameters of the screw in combination with the centroid coordinates of the pedicle; and S5, simulating the swinging range of the universal nail head based on the coordinates of the nail outlet point to judge whether the nail rod penetrates through all the pedicle screws on the same side or not, if so, determining a planned path, and if not, iteratively executing the steps S3 to S5 until the nail rod penetrates through all the pedicle screws on the same side. According to the scheme, the problems of low efficiency and low success rate of pedicle screw placement and rod penetration operations are solved.

A trial femoral assembly for hip arthroplasty and associated method of use is disclosed that includes a head, a neck connected to the head, and a stem or broach connected to the neck, wherein the neck is expandible and collapsible. Also, the stem or broach can move laterally in relation to the longitudinal axis of the neck. A first embodiment includes a notched rod located within a housing and within a circular lower neck portion having a tilted spiral cam that interacts with the notched rod to provide movement involving extension or retraction of the neck. A second embodiment includes a bevel gear located on an outer surface of the head that engages a screw located inside the head to move the neck to provide extension or retraction. A third embodiment includes at least three nested, telescoping threaded elements with oppositely handed threads that extend or retract the neck.

An aiming guide system configured for connection to a bone plate including an aiming arm and a connection assembly. The aiming arm has a rigid body extending from a proximal end to a distal end with a plurality of aiming holes defined through the rigid body between the proximal end and the distal end thereof. The distal end defines an attachment slot through the body. The connection assembly is configured to engage an attachment screw hole of the bone plate and the attachment slot such that the aiming arm is fixed in position relative to the bone plate with each of the aiming holes aligned with a respective hole along the bone plate.

A uniplanar bone anchor including a housing and a bone screw is provided. The lower region of the housing defines mating elements that mate with engaging elements on the bone screw to limit movement of the housing relative to the bone screw to a single plane.

Orthopedic fixation devices, assemblies, instruments, and methods relating to the same. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener, such as a saddle, retaining clip, and friction ring. A spinal rod may be secured in the tulip head, for example, with a locking cap, thereby securing the bone fastener. One or more instruments, such as screwdrivers and correction instruments may be used for reduction, derotation, compression and / or distraction.

The invention discloses a hemodialysis puncture needle fixator, and relates to the technical field of medical instruments. The hemodialysis puncture needle fixator comprises a connecting rod, a puncture needle placing plate, a base, a sliding block and a fastening screw, the base is used for being placed in front of a puncture position of a patient, and sliding grooves perpendicular to the edges of the front side, the rear side and the right side of the upper surface of the base are formed in the front side, the rear side and the right side of the upper surface of the base; the puncture needle placing plate is arranged on the upper surface of the base, is positioned among the three chutes, and is parallel to the front side edge and the rear side edge of the upper surface of the base; the number of the connecting rods and the number of the sliding blocks are both three, connecting lugs are arranged on the upper surfaces of the sliding blocks in an upward protruding mode, and the three sliding blocks are arranged in three sliding grooves in the base in a sliding mode. The middle areas of the front side wall and the rear side wall of the puncture needle containing plate are perpendicularly and rotationally connected with rotating shafts, and connecting lugs are arranged at the ends, opposite to the ends connected to the puncture needle containing plate, of the rotating shafts. According to the hemodialysis puncture needle fixator, the fixing angle of the puncture needle can be changed at will, and high efficiency of dialysis treatment is effectively guaranteed.

An expandable interbody with a modular endplate has an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring to adjust a body length of the expandable interbody. The expansion ring has a plurality of teeth, and the outer column has at least one arm for engaging a tooth of the plurality of teeth to lock the expansion ring. The inner column and / or outer column can include a connector for connection to a modular endplate that has a substantially hollow core. The modular endplate includes a plate with a set screw entrapped therein. The modular endplate has an aperture to receive the connector of the inner and / or outer column.

Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include a body, a first endplate, and a second endplate. A drive screw may be rotated to move the first and second endplates outwardly and into an expanded configuration. Instruments may be provided to ensure the implant is inserted safely and as intended.

The invention discloses a rod end pedicle screw connector and a spine stabilizing device, and the connector comprises a first maintaining part which is provided with a cylindrical cavity, a main accommodating groove and an extrusion cavity; the second retaining part is arranged in the columnar cavity and is fixed with the rod-shaped part; the main gland is screwed with the upper cavity wall of the columnar cavity; a first sub-gland for pressing the second holding member; the wrapping part is arranged in the extrusion cavity and used for clamping the ball head of the screw; a force transmission part is arranged between the wrapping part and the main gland and used for transmitting pressure applied by the main gland to the wrapping part. An elastic component is arranged in the columnar cavity and is provided with a first combining end and a second combining end, and the two combining ends are allowed to be close to or far away from each other and the first combining end is allowed to swing in any direction relative to the second combining end through elastic deformation; the first combination end is fixedly connected to the second holding part, and the second combination end is fixedly connected to the first holding part or the force transmission part.

Disclosed is a bone graft harvesting device that includes a cutter section and a housing section secured to one another via a removable fastener, such as a manually operable screw. One of these sections includes a proximal end having a shaft configured for connection to a drill or other rotary tool, and the other may include a scoop for facilitation of removal of harvested bone from a patient. The cutter section and housing section may be separated from one another upon harvesting of bone from a patient to access harvested bone in a cavity of the housing.

A bone fusion assembly includes a bone plate having a plurality of through openings extending therethrough. The through openings include at least one fusion screw opening sized to allow a screw guide to be at least partially inserted therein and a plurality of fixation screw through openings. The screw guide includes a body having a proximal end, a distal end, and a through-passage extending between the proximal end and the distal end. A K-wire a sized to extend through the through-passage in the body of the screw guide.

An air outlet cover of a range hood comprises a cover body and a connecting ring installed at the top of the cover body, locking buckles are inwards arranged on the upper portion of the inner circumferential wall of the cover body in a protruding mode and distributed at intervals in the circumferential direction of the inner circumferential wall of the cover body, clamping buckles matched with the locking buckles are arranged on the outer circumferential wall of the connecting ring, and the connecting ring is matched with the cover body in a rotating and locking mode. The buckle is provided with an anti-loose convex rib and a limiting rib, the anti-loose convex rib is arranged on the front side of the limiting rib in the clamping-in direction of the buckle, the locking buckle is provided with an anti-loose blocking rib, and the anti-loose blocking rib is limited between the anti-loose convex rib and the limiting rib in the state that the connecting ring and the cover body are assembled. The connecting ring and the cover body of the air outlet cover adopt a rotary locking matching structure, screw fixation is not needed, after-sale installation and disassembly are convenient, when the connecting ring is rotated and fixed in place, the limiting rib of the connecting ring makes contact with the front end of the air outlet cover locking buckle, the connecting ring is prevented from further rotating, and the air outlet cover anti-loosening blocking rib is located between the connecting ring limiting rib and the connecting ring anti-loosening convex rib, so that the connecting ring is prevented from loosening. And the connecting ring is prevented from anticlockwise rotating and loosening under the action of small external force.

A bone screw implant comprising a bone screw and a sleeve rotatably coupled with the bone screw. The bone screw includes a shank having a first end and a second end, the shank defining a longitudinal axis extending between the first end to the second end, the first end having a first engagement geometry extending about the shank and the second end having a tip. The bone screw includes an external threading extending along the shank and at least one cutting flute configured to gather and retain bone shavings. The sleeve includes a body portion having an external surface and a bore forming an internal surface, the internal surface having a second engagement geometry extending about the bore, where the first engagement geometry and the second engagement geometry allow the sleeve to rotate freely relative to the bone screw.

The invention relates to a tibial plateau prosthesis. The tibial plateau prosthesis mainly comprises a tibial spacer, a tibial plateau and a sleeve. The tibia gasket is provided with a first fixing block and three arc-shaped holes, and movable second fixing blocks are arranged in the holes. The tibial plateau comprises a plateau support with open holes and a shell, and the open holes are formed in the side portion and the bottom of the shell. The screw penetrates through the gasket and the platform support to be inserted into the shell, and outer threads of the screw are meshed with inner threads of the sleeve. The sleeve moves upwards and extends out of the side hole of the shell through a hinged connecting rod system to penetrate into the medullary cavity to enhance fixation. A spring is arranged in the screw to drive the first pushing part and can be matched with the sleeve to prevent downward movement; and meanwhile, the second pushing part in the screw can extend into the medullary cavity from the bottom through threads. The design realizes multidirectional fixation and improves the stability of the prosthesis.

A system for correcting a lateral curvature of a spine that can include a plurality of screws configured to be implanted in a plurality of vertebrae, and a plurality of extensions configured to be removably coupled with the plurality of screws. Some embodiments of the plurality of extensions can be curved, bent, angled, and / or offset along at least a portion thereof and can be removably coupled with a screw head of each of the plurality of screws. The system can include a connecting element or rod that is configured to be coupled with the plurality of screw heads. Some embodiments of the system can be configured such that the rod can be guided along the plurality of extensions from the proximal toward the distal end portions of the extensions and into engagement with the plurality of screws to cause the plurality of vertebrae to move laterally.

A system for bone fusion incudes an implant configured to be attached to two bone portions; an insertion handle attached to the implant by a threaded drill guide and including a stability screw trajectory guide portion and an implant screw guide portion; and a stability screw configured to pass through the stability screw trajectory guide portion and into the two bones.

Holders for bone screws, kits including a holder and one or more bone screw, and methods of loading a screw onto a driver for driving the screw into a bone are described. A holder for a bone screw includes a main body having a first surface and a second surface. The main body defines a retainer having first and second arms, each of which is a flap of the main body that is movable from a first configuration, in which the respective arm is coplanar with the adjacent portions of the main body, and a second configuration in which the respective arm extends away from the adjacent portions of the main body. The first and second arms are biased toward returning to the first configuration in which the respective arm is coplanar with adjacent portions of the main body.