2378 results about "Iliac screw" patented technology

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.

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.

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.

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.

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.

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.

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.

Threaded bone implants, such as pedicle screws, are provided with an elongate body comprising a first portion, a second portion distal to the first portion, and a third portion distal to the second portion. The first, second and third portions may be provided with different features that correspond to first, second and third anatomical regions of interest in a vertebrae or other bone segment(s). The bone implants, systems, methods of manufacture, and methods of use disclosed herein may be used for the stabilization, fixation and / or fusion of the sacroiliac joint, the spine and or other bone segments.

Tracking objects in medical procedures. At least one example is a method comprising: retaining a bone marker on a distal end of an installation tool, the bone marker comprising a polyhedron having a fiducial pattern on each of at least three outward facing surfaces of the polyhedron, an externally-threaded screw extending distally from the polyhedron, and a flange proximate to an intersection of the polyhedron and the externally-threaded screw; positioning a distal end of the externally-threaded screw against a bone at a marker location; screwing the externally-threaded screw into the bone by way of the installation tool; and trapping tissue against the bone beneath the flange.

Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

Disclosed are bone screw drill targeting guides and methods for using such targeting guides that are useful in surgical procedures for correcting hallux valgus deformity.

Disclosed herein is a “condensing screw for an implant procedure.” A “condensing screw for an implant procedure” of the present invention is provided with: a screw main body which is inserted into an implant planting hole formed by an pilot drilling process, enlarges the implant planting hole to a size large enough to insert an implant fixture, and forms osseodensification regions on the side surfaces and the inside of the implant planting hole; and a shank which extends upward from the screw main body, is coupled to a driving unit, and transmits the torque of the driving unit to the screw main body. The condensing screw can enlarge the implant planting hole and perform the osseodensification process simultaneously, and can be used for maxillary sinus augmentation.

The invention discloses a pair of orthopedic reduction forceps with adjustable clamping force in the technical field of medical instruments, which comprises a first forceps body, a second forceps body and a gill shaft screw, the first forceps body and the second forceps body are rotationally connected through the gill shaft screw, the second forceps body comprises a forceps head fixedly arranged with the gill shaft screw, and the forceps head is rotationally arranged with the first forceps body through the gill shaft screw; the forceps handles are rotationally arranged through gill shaft screws and the forceps heads; two ends of the arch-shaped elastic piece are respectively arranged on the side walls of the forceps head and the forceps handle; the forceps handle drives the forceps head to rotate through the arch-shaped elastic piece; and the clamping force of the clamp head can be controlled only by controlling the position of the clamp handle, so that the requirement on an operator can be weakened.

The invention discloses an artificial intelligence assisted femoral neck fracture screw path planning system and method, and the system comprises an image collection module, a structure recognition module, a path planning module, a decision feedback module and a robot execution module, and all the modules achieve the linkage through data and control signal interfaces. Structured and data-driven design reference is provided, unnecessary attempts and repeated operations are reduced, the path design efficiency and standardization level are improved, and the implementation mode has good adaptability, can be compatible with existing multi-brand orthopedic robot platforms, is especially suitable for intelligent screw path planning in femoral neck fracture fixation, and has wide application prospects. The method has remarkable advantages in the aspects of technical innovation and industrial application, and is expected to improve the screw implantation precision, shorten the time consumption in the operation, reduce the track adjustment frequency, reduce the radiation exposure risk, and promote the deep development and clinical transformation of the AI-assisted intelligent path control technology in the field of orthopedic operations.

The invention relates to the technical field of bone implants for minimally invasive surgery, and particularly discloses an implant for percutaneous minimally invasive thoracolumbar vertebral fracture, which comprises a vertebral body forming body, the vertebral body forming body comprises a vertebral body forming body head and a plurality of blade parts arranged at the rear end of the vertebral body forming body head in a surrounding manner, the vertebral body forming body head is provided with a needle guide hole penetrating along the axial direction, and the needle guide hole is communicated with the blade parts; a containing cavity is defined by the blade parts; the front end of the threaded guide rod and the head of the cone forming body are integrally formed, the needle guide hole penetrates through the threaded guide rod in the axial direction, and the rear end of the threaded guide rod extends out of the containing cavity; the pedicle screw is provided with a threaded hole penetrating in the axial direction, the threaded hole is in threaded connection with the threaded guide rod, the pedicle screw comprises a screw head and a threaded part arranged at the rear end of the screw head, and the screw head is arranged in the containing cavity and expands the blade part. According to the implant for the percutaneous minimally invasive thoracolumbar vertebral fracture, surgical wounds are reduced, the vertebral restoration effect is good, the stability of a vertebral formed body is guaranteed, and the surgical time can be saved.

The utility model discloses a 3D printing porous pedicle screw which comprises a screw body part and a screw cap part, the screw body part comprises a cortical bone thread area close to one end of the screw cap part and a cancellous bone thread area far away from one end of the screw cap part, and a porous structure area is arranged at one end, not connected with the screw cap part, of the screw body part. The porous structure area comprises an inner core column extending in the axial direction of the nail body part, at least one reinforcing beam and a porous structure, the reinforcing beams extend outwards from the periphery of the inner core column, and the porous structure is annularly distributed on the outer periphery of the inner core column. The porous structure can efficiently induce bone tissue to grow in, the screw and a vertebral body are connected into a whole, stress is effectively dispersed, the stability of the screw is improved, the porous structure is arranged on the vertebral body at the front end of the screw, screw breakage caused by stress concentration of the screw in a vertebral pedicle area can be avoided, meanwhile, the stability of the screw can be better improved through the reinforcing beam, and the service life of the screw is prolonged. The possibility of fracture of a porous area of the screw is reduced, generalization performance is better, and the use experience feeling is improved.

The invention provides a wound reduction screw and an implantation method thereof. The screw includes a headless screw having a narrow thread at a proximal end and a reduction cap. The cap is adapted to be coupled to the headless screw via the narrow threads after the screw has been inserted into a substrate, such as a patient's bone. The method involves inserting a headless screw into a bone borehole using a headless screwdriver, and coupling a reduction cap to the inserted screw using a reduction screwdriver loaded with the reduction cap. This reverse torque approach enables efficient implantation of the reduction wound screw. These innovations provide potential improvements to patient care, particularly in terms of bone reposition traction and fixation.

This invention relates to a treatment device suitable for combined operative procedure of vertebroplasty and pediculoplasty. A treatment device includes a cylindrical driver capable of driving a screw into bone, an inner sleeve capable of being inserted into the driver, and a guide pin capable of being inserted into the inner sleeve, and is configured as follows. The screw includes on an outer wall (outer circumference) a thread that can tap into bone or cement, and a through hole that allows the inner sleeve to pass from a head to a tip. The driver can fit onto the head of the screw and when moved along the central axis and be joined to the screw, so as to transmit torque about the central axis to the screw. The inner sleeve includes a notch which protrudes, when the inner sleeve is inserted from the distal end of the driver in a state in which the screw and the driver are joined together, protrudes more proximally than a tip of the screw, preventing removal of the screw.

Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and / or non-locking holes. Additional bone plate holes can be used to accept sutures, K-wire, or other instrumentation.

A screw with an improved screw head is provided. The screw may include a shank in between a head and a tip. The head may include a plurality of protrusions provided radially along the head. Each of the plurality of protrusions may include a protrusion wall, a leading wall, a trailing wall, and a bottom wall; the trailing wall may include one single trailing surface, the leading wall may include a plurality of leading surfaces, and the bottom wall may include at least one bottom surface.

The invention relates to the technical field of orthopedic biomedical treatment, in particular to a proximal humerus fracture intramedullary bone cement supporting rod. The bone fracture plate comprises a bone fracture plate body, a plurality of first connecting holes and a plurality of second connecting holes are formed in one side of the bone fracture plate body in a penetrating mode, and solid bone nails are arranged in the first connecting holes. According to the device, bone cement is injected into a marrow cavity from an injection molding channel and an injection molding opening and then solidified into a rod body, the marrow cavity space is tightly filled, supporting structures are synchronously formed on the inner side and the outer side of the humerus through cooperation of a bone fracture plate and a bone cement supporting rod in the marrow cavity space, and therefore stress generated when arms of a patient move is evenly dispersed on the two sides of the humerus; the fixing stability is remarkably improved, the risk of internal fixation failure such as steel plate displacement and screw cutting is effectively reduced, and the bone cement supporting rods can further prevent displacement of fracture blocks, promote fracture repair, relieve extrusion and friction of surrounding tissue of a filling position, reduce inflammatory response and postoperative pain and improve the rehabilitation comfort of a patient.

A bone anchor and system for applying tension via a tether or cord between bone anchors is provided. An illustrative bone anchor includes a screw having a head and a shank, where the shank defines a screw axis. The bone anchor further includes a connector attachable to the head of the screw, where the connector is configured to receive and secure a cord to the bone anchor.

A dual interface screw element includes a screw body (10) with an external thread (12) and two distinct engagement interfaces (13, 15), one for inserting the screw and another for removing it. The removal engagement interface (15) includes a reverse thread (16) located in an axial recess (36) such that a complementary reverse-threaded tool (24) applying torque to extract the screw body is tightened against the second engagement interface. The screw is part of a system including an extraction tool (24) and an insertion tool (18). Applications include medical applications such as dental implants and bone screws, domestic applications such as headless wall mounting anchors, and a wide range of other industrial and aerospace applications.

The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.

The present invention discloses a novel bone transport intramedullary nail, comprising an intramedullary nail main nail, the intramedullary nail main nail is a hollow structure, the intramedullary nail main nail comprises an intramedullary nail proximal end and an intramedullary nail main body, the intramedullary nail proximal end and the intramedullary nail main body are an integrated structure, the intramedullary nail proximal end has a diameter greater than the diameter of the intramedullary nail main body, the intramedullary nail proximal end is provided with a through dynamic screw hole and a static screw hole, an adjustment hole is provided on the intramedullary nail main body away from the intramedullary nail proximal end, a dynamic bone screw is installed in the dynamic screw hole, the dynamic bone screw can move axially along the dynamic screw hole, a tail cap is installed on the proximal side of the intramedullary nail, an elastic body 1 is provided between the tail cap and the dynamic bone screw, and a bone transport device for adjusting the movement of the fracture end is provided on the intramedullary nail main body. The elastic device can give stress stimulation to the bone segment, avoid stress shielding, accelerate fracture healing, reduce delayed fracture healing and non-union, and reduce the incidence of re-fracture after removing the intramedullary nail.