32 results about "Screw placement" patented technology

Surgical systems and methods for correcting a bunion percutaneously including aligning guides are provided herein. At least one embodiment includes a handle including a rod with a first end including a first longitudinal axis and a second end including a second longitudinal axis offset from the first longitudinal axis. The handle can couple to a gadget including a leg that couples to the handle, and a translator that extends and retracts the leg. The gadget can also a slide with a guide body to guide a guide wire for accurate placement of a screw. The surgical system can also include a periscope to assist in pre-visualization of the screw placement.

The utility model provides a thoracolumbar spine nail channel personalized nail placing device, and belongs to the field of surgical instruments in the field of spine surgery in clinical medicine and external science. The screw placement device comprises a holding assembly, a connecting piece and a bone recognition assembly, the connecting piece is used for connecting the holding assembly with the screw tap assembly or the pedicle screw tool bit, and the holding assembly is fixedly connected or detachably connected with one end of the connecting piece; the screw tap assembly or the pedicle screw tool bit is arranged at the other end of the connecting piece and is fixedly or detachably connected with the connecting piece; the bone recognition assembly comprises a torque measuring component, and at least part of the torque measuring component is connected with the screw tap assembly and / or the pedicle screw tool bit so as to obtain the real-time torque of the screw tap assembly and / or the pedicle screw tool bit in the screwing-in process. The real-time torque of the screw tap assembly or the pedicle screw tool bit in the screwing-in process is obtained through the torque measuring component, the matched screw is selected, and the surgical curative effect is improved.

The invention discloses a femoral neck fracture treatment positioning plate, preparation equipment and a preparation method, the positioning plate comprises a main body plate and an adjustable guide module, the shape of the main body plate is matched with the anatomical form of the outer side bone surface of the proximal femur, and the main body plate is provided with at least one bone nail hole. The individualized main body plate accurately matched with the anatomical form of a patient is introduced, and the adjustable guide modules of various innovative designs are combined, so that the problem that a traditional positioning plate is poor in universality is effectively solved, and anatomical differences and operation requirements of different patients can be perfectly met; a spherical hinge, an offset sliding block-arc-shaped guide rail, an elastic deformation ring, a modularized guide sleeve and other structures are adopted by the guide module, the space angle stepless adjusting function is ensured, meanwhile, the mechanical structure is remarkably simplified, redundant parts are eliminated, high-rigidity and gapless locking is achieved, micro-motion and displacement in an operation are thoroughly avoided, and the operation efficiency is improved. And the accuracy and the reliability of screw placement are greatly improved.

Systems and methods are disclosed that provide a computerized framework for performing decision intelligence (DI)-based evaluation and / or surgery of a patient's spine. The disclosed spinal evaluation framework provides a robotically actuated screw placement and evaluation system. The disclosed framework can be implemented for performing pre-operative, intra-operative, and / or post-operative spinal evaluations / procedures. The disclosed spinal framework can be utilized for robotically actuated pedicle screw placement, robotically actuated bone removal, and / or spinal configuration optimization via spinal flexibility and alignment assessment.

The invention provides a precise navigation method and system for large trochanter bone scale retardation. The method comprises the following steps: acquiring a bone three-dimensional model of a large trochanter and planning information of a retardation screw; carrying out registration on an entity trochanter and the skeleton three-dimensional model in an operation, and mapping planning information of a blocking screw; and tracking and displaying the poses of the screw placement tool and the solid large trochanter in real time so as to navigate the screw placement action of the retardation screw. In the application, accurate screw placement of epiphyseal block is realized by planning the screw placement scheme of epiphyseal block, tracking the screw placement tool and the distal end of the solid femur in real time, so that accurate screw placement is realized without repeated fluoroscopy, and radiation exposure injury is avoided.

The invention provides a screw angle measuring, guiding and positioning method for a proximal femur compression steel plate, which is applied to the technical field of orthopedic surgery assistance and comprises the following steps of: constructing a three-dimensional bone morphological model of the proximal femur of a patient before a surgery, simulating different X-ray projection directions and generating a projection of a virtual guide needle on a two-dimensional image; measuring an included angle parameter between a femoral neck axis and a guide pin projection, correcting the included angle parameter into a screw incident angle parameter, further designing a guider shell, a guide hole and a sensor layout based on the angle parameter, performing matched simulation on a three-dimensional bone form model, and evaluating the fitting degree of the guider on the bone surface and the guide hole positioning precision; therefore, accurate reference is provided for preoperative screw placement path planning and intraoperative guider use, quantifiable design and guide control of the incident angle of the screw are achieved, and deviation of screw placement is reduced.

The application provides a spine screw placement preoperative planning quality control method, an electronic device and a computer storage medium. By constructing boundary models of key risk objects such as pedicle cortex, spinal canal, intervertebral foramen and superior articular facet joint surface, combining preoperative screw placement planning data to calculate quantitative indicators such as minimum safety distance, predicted breaking amount and breaking direction, and inputting structured feature vectors and local image features of the planning channel into a risk assessment model to output risk assessment results, the safety hazards of screw placement can be accurately identified for complex cases such as pedicle morphology variation, degeneration or deformity. At the same time, the deficiencies of the existing planning system, such as the lack of quantitative quality control and grading early warning mechanism, can be made up. High-risk planning schemes can be prompted in time, and objective basis for path correction can be provided, so as to improve the accuracy, safety and standardization of spine screw placement preoperative planning.

The utility model relates to a screw dispensing tool capable of preventing artificial omission, which relates to the technical field of dispensing equipment and comprises a base, a positioning metal plate and a damping hinge. A glue storage groove is formed in the upper face of the base, the damping hinge is connected to the middle of the front face of the base, the positioning metal plate is connected to the other end of the damping hinge, and a plurality of screw containing clamping grooves are formed in the other end of the positioning metal plate at equal intervals. The device has the advantages that manual omission is prevented, accurate dispensing of each screw is ensured through the fixing operation process of the tool, and omission is avoided; the glue amount is accurately controlled, specifically, the depth of the screw immersed in the glue is controlled by rotating the positioning metal plate, and the glue amount is accurately controlled; the device is simple in structure, easy to operate and suitable for a large-scale production environment; the acrylic base and the positioning metal plate are adopted, so that the material cost is low, and manufacturing and maintenance are easy.

The application provides a screw angle measurement and guiding positioning method of a proximal femoral compression plate, which is applied to the technical field of orthopedic surgery assistance, and is characterized in that: a three-dimensional bone shape model of the proximal femur of a patient is constructed before surgery, different X-ray projection directions are simulated, the projection of a virtual guide needle on a two-dimensional image is generated, the included angle parameter between the femoral neck axis and the guide needle projection is measured, the screw incidence angle parameter is corrected, the guide device shell, the guide hole and the sensor layout are further designed based on the angle parameter, and the cooperation simulation is carried out on the three-dimensional bone shape model to evaluate the fitting degree of the guide device on the bone surface and the positioning accuracy of the guide hole, so as to provide accurate reference for preoperative screw placement path planning and intraoperative guide device use, realize the quantifiable design and guiding control of the screw incidence angle, and reduce the deviation of screw placement.

A computer-implemented method for placing pedicle screws is disclosed herein. The method inputs a medical image having at least one bone image which is then divided into spatial segments. A set number of screws are spaced in each segment according to a neural network trained on medical images of screw placement in a similar procedure.

The invention relates to an imprecision-tolerant threaded insert for self-tapping screws, designed to improve fastening applications. The insert comprises an outer shell with exterior threading and a core made from a resiliently deformable material, capable of accepting and retaining a self-tapping screw. The insert features material modulation elements that manage core deformation during screw insertion, prevent deformation of the outer shell, and may reduce the torque required for screw engagement. The threaded insert is capable of engaging with the aperture of a wall anchor, ensuring a secure fit. This innovative design enhances the functionality and tolerance of fastening systems, particularly in situations involving misalignment or imprecision during screw placement.

A Lisfranc reconstruction device includes a pair of operator grips mechanically linked to a first arm that includes a barrel and a second arm that includes a jaw whereby motion of the grips is mechanically transformed into relative translation of the barrel and the jaw for compression of a portion of a Lisfranc joint complex therebetween. The device includes a retention mechanism, such as a ratchet, to enable retention of the barrel and jaw when the desired position has been reached. The device may be provided in the form of a kit that includes a wire guide sleeve, a pilot wire, and a Lisfranc screw, in particular a cannulated Lisfranc screw that is sized to travel over the wire in a defined trajectory to facilitate proper screw placement. The device may be used for reconstruction of a traumatic injury to the Lisfranc joint complex.

The invention discloses a pelvic channel screw positioning system with a digital navigation interface, and belongs to the technical field of medical instruments, the pelvic channel screw positioning system comprises an arc-shaped positioner main body, a guide sleeve slidably connected to an adjusting device through a sliding block and a locking mechanism, and the digital navigation interface is rigidly fixed to the side portion of the guide sleeve. The digital tracing interface is used for installing an optical or electromagnetic space tracing element, and when the guide sleeve slides in the second sliding groove along with the sliding block, the digital tracing interface synchronously collects vector displacement data and converts the vector displacement data into needle passage axis coordinates through a mapping matrix. The problem that repeated X-ray perspective positioning is needed in a traditional pelvic surgery is solved, real-time needle insertion deviation feedback is achieved through a digital interface, the accuracy of screw implantation is remarkably improved, and the risk of radiation exposure of doctors and patients is reduced.

The orthopedic outer frame comprises an outer frame body, the outer wall of the top of the outer frame body is fixedly connected with a junction box body, the top of the junction box body is fixedly connected with a protrusion, the top of the junction box body is provided with a junction box cover, the bottom of the junction box cover is provided with a slot, and the protrusion is connected with the slot in an inserted mode. Two connecting ports are formed in the bottom of the junction box cover, external threaded columns are fixedly connected to the interiors of the two connecting ports, protective covers are movably connected to the outer sides of the external threaded columns, rubber pads are fixedly connected to the inner walls of the bottoms of the protective covers, and screw placement holes are formed in the external threaded columns. According to the utility model, through cooperative use of the rubber pad and the rubber ring, the junction box body and the outer frame body are subjected to double sealing protection at the interface where the junction box body and the outer frame body are connected through the screw, and the baffle plate can stably shield and protect the power interface through the elastic ball.

The invention discloses a spine screw placement robot closed-loop control method and system based on intraoperative image feedback. The spine screw placement robot closed-loop control method comprises the following steps: acquiring a screw insertion point planning pose of a screw placement guide needle under a robot base coordinate system planned before an operation; obtaining an intra-operative registration fusion image of the two-dimensional projection of the preoperative spine CT image model and the optical image collected in the operation, and determining the position coordinates of an intra-operative actual nail entry point under an image pixel coordinate system; the actual position coordinates of the nail-in point in the operation are converted into position coordinates of the nail-in point under a robot-based coordinate system, the position coordinates of the nail-in point are fused with the attitude angle of the planned attitude of the nail-in point, and the target attitude of the nail-placing guide needle is generated; and the target pose is input into a control system of the spine screw placement robot to drive the spine screw placement robot to move, so that the screw placement guide needle reaches the target pose. The image registration information can be seamlessly and accurately converted into the motion instruction of the spine screw placement robot, and automation and intelligentization of the whole process from visual perception to physical execution are achieved.

This invention discloses a screw-installing device suitable for angled sacroiliac screws. The device includes a torque-applying section for installing the sacroiliac screw. The distal angle of the tubular torque-applying section matches the proximal angle of the sacroiliac screw, ensuring complete alignment of their axes. Each end of the torque-applying section is provided with an elastic locking element and a driving element. The elastic locking element is used to lock or unlock the sacroiliac screw, and the driving element controls the movement of the elastic locking element, thereby enabling the installation and removal of the torque-applying section and the sacroiliac screw. This screw-installing device is used for placing angled sacroiliac screws. Angled sacroiliac screws cannot be directly rotated in a minimally invasive environment after insertion. This device is suitable for both pre- and post-screw placement of sacroiliac screws, significantly reducing damage to surrounding nerves and blood vessels and significantly improving surgical efficiency.

A screw conveyor with a direction unifying function relates to the technical field of screw conveyors and comprises a base, an adjusting seat is mounted in the base, the bottom of the adjusting seat is connected with an inner cavity of the base through a bearing, and a screw placing box is fixedly arranged above the adjusting seat. A conveying frame is installed in the middle of the interior of the screw containing box, one end of the conveying frame extends to the exterior of the screw containing box, material distributing plates are arranged on the portions, located on the two sides of the conveying frame, of the screw containing box, the material distributing plates and the screw containing box are welded and fixed, and a feeding plate is slidably installed in the adjusting base; and the feeding plates extend into the screw containing box and are located on the two sides of the material distributing plate, and the problem that the screw conveyor cannot adjust the directions of screws in the conveying process is solved.

The invention relates to the technical field of atlantoaxial joint fixation, and discloses a preoperative risk parameter determination method for percutaneous posterior atlantoaxial joint screw internal fixation, and the method comprises the steps: obtaining a target image which is an image containing an atlantoaxial joint to be measured; based on the target image, preoperative risk parameters of percutaneous posterior atlantoaxial joint screw internal fixation are determined; the preoperative risk parameters comprise the width of the right / left side dentate isthmus; the height of the right / left side axis isthmus; the running distance of right / left side axis isthmus screws in sclerotin is determined; the maximum width of the screw entering path of the right / left atlas lateral mass screw; the maximum height of the screw entering path of the right / left atlas lateral mass screw; the running distance of the right / left atlas lateral mass screw in the sclerotin is determined. According to the method, a preoperative parameter measurement system of the percutaneous posterior atlantoaxial joint screw internal fixation operation is constructed, a quantitative basis is provided for the screw placement direction, the screw entering point, the angle and the like, and the accuracy and safety of the percutaneous posterior atlantoaxial joint screw internal fixation operation are improved.

The present application relates to a screw planning method and a rod insertion navigation method for spinal screw placement surgery. The screw planning method comprises: according to a screw planning algorithm, planning and obtaining initial screw positions, wherein the initial screw positions comprise positions of a plurality of screws that need to be set; according to the initial screw positions and screw sizes, screening a target rod path meeting a preset preference condition, wherein a rod is configured for insertion through the plurality of screws; and determining a target screw position according to the target rod path. The screw planning method aims to solve the problems in the related art that the screw planning algorithm has certain errors, requires manual adjustment in open surgery, and is difficult to apply to minimally invasive screw placement surgery.

Surgical systems and methods for correcting a bunion percutaneously including aligning guides are provided herein. At least one embodiment includes a handle including a rod with a first end including a first longitudinal axis and a second end including a second longitudinal axis offset from the first longitudinal axis. The handle can couple to a gadget including a leg that couples to the handle, and a translator that extends and retracts the leg. The gadget can also a slide with a guide body to guide a guide wire for accurate placement of a screw. The surgical system can also include a periscope to assist in pre-visualization of the screw placement.

The invention discloses a robot-assisted screw placement guide needle puncture state recognition method based on an interaction stiffness coefficient. The recognition method comprises the steps that force feedback data marked by an expert is collected and utilized; based on the force feedback data and a pre-constructed expert evaluation standard, training a neural network to learn time sequence and frequency spectrum features of force signals in different interaction states, and establishing a state recognition model; and performing real-time state recognition according to real-time data acquired in the operation by utilizing the state recognition model. According to the recognition method, the problems that in the prior art, preoperative planning is seriously depended in an operation, the state of the tail end of the flexible instrument cannot be accurately sensed, and reliability is poor when visual information is limited are solved.

The invention provides an intelligent planning method, device and equipment for orthopedic trauma repair and a computer readable storage medium. The intelligent planning method for orthopedic trauma repair comprises the following steps: acquiring at least two medical images of the same type of a trauma part; performing registration according to the acquired medical image of the wound part to obtain a registered medical image of the wound part; presenting an intraoperative planning interface containing the medical image of the registered wound part and a recommended screw placement path; wherein the recommended screw placement path is determined through a screw placement path planning mode matched with the wound part; and in response to an editing operation for the recommended screw placement path, collaboratively presenting a demonstration effect of the editing operation in each medical image in the intra-operative planning interface so as to determine an orthopedic trauma fixation scheme containing a screw placement plan.

An independent, surgical screw placement system makes use of an aiming jig. The aiming jig has components and features which can be suitably adjusted so that an independent or extra-plate screw avoids crossing the nominal trajectories of other joint screws securing a surgical plate to a foot in an associated surgery. The aiming jig has a telescoping arm which can be adjusted to a variety of potential trajectories for the independent surgical screw until a desired trajectory for such independent screw has been determined.

The utility model provides a minimally invasive spine screw placing device which comprises a mechanical arm, a kirschner wire and a pedicle screw and further comprises a connecting device, a screw fixing device and a screw fixing device. The kirschner wire clamping module is connected with the mechanical arm through the connecting device and is used for clamping a kirschner wire; and the screw clamping module and the kirschner wire clamping module are coaxially arranged, the screw clamping module is arranged below the kirschner wire clamping module, and the screw clamping module is connected with the mechanical arm through the connecting device and used for clamping a pedicle screw. A mechanical arm of a robot system is used for controlling the screw placement device, one-step high-precision automatic implantation of the pedicle screw is achieved, the technical problems that in the prior art, manual screw implantation is needed, a kirschner wire slips, and the screw placement deviation probability is large are solved, and the screw placement accuracy and safety are improved to a great extent.

The embodiment of the invention is suitable for the technical field of computer-aided medical treatment, and provides a pedicle screw planning method and device and a computer program product.The method comprises the steps that a population is initialized, the population comprises a plurality of individuals, and any individual is defined as comprising a first screw and a second screw, the first screw and the second screw respectively have various screw placement information; fitness evaluation is carried out on each individual in the population according to a plurality of fitness functions, the fitness score of each individual is obtained, and the fitness functions are constructed based on the multiple kinds of screw placement information; performing genetic control on the population according to the fitness score to generate a next-generation population; the genetic control is iteratively carried out for multiple times, a target population is obtained, the target population comprises multiple target individuals, and any target individual represents a pedicle screw planning scheme. By means of the method, the pedicle screw placement scheme can be efficiently and accurately planned.

The utility model discloses a machinable base pillar and a screw. The machinable base pillar comprises a base pillar body, a connecting port arranged at the top end of the base pillar body, a base tail arranged at the bottom end of the base pillar body, a screw groove formed in the base pillar body and used for placing and installing the screw, and a tail threaded hole formed in the bottom face of the base tail and communicated with the screw groove. The detachable protective sleeve is arranged on the bottom surface of the tail part of the base table and is used for blocking the bottom end of the tail part threaded hole; according to the utility model, the machinable base stand in the prior art is improved and optimized, and the detachable protective sleeve is designed at the bottom of the base stand, so that the threaded hole at the tail part of the base stand is effectively protected in the storage and transportation processes, external foreign matters are prevented from entering the base stand, subsequent unnecessary cleaning links are reduced, and the service life of the base stand is prolonged. And meanwhile, the protective sleeve can also play an anti-falling role to prevent the matched screw in the base platform column from falling off, so that the use convenience is effectively improved, and certain convenience is brought to the transportation, storage and use of the machinable base platform column and the screw.

The utility model relates to the technical field of orthopedic surgery, and discloses a calcaneus internal fixation screw placement guiding device which comprises a supporting frame, a guiding sleeve and a locking piece. The supporting frame is fixed to the skin surface of a patient and corresponds to the calcaneus in position. The supporting frame comprises a middle connecting block, a left positioning block, a right positioning block and an upper positioning block. The three guide sleeves are located in straight notches A formed in the left positioning block, the right positioning block and the upper positioning block respectively, the angle of the guide sleeves is adjusted in the straight notches, the guide sleeves are locked and positioned through locking pieces after angle adjustment, the angle of the guide sleeves can be adjusted, and the diameter and the position of a guide hole are designed according to the size and the path of an internal fixation screw; an operator can adjust the position of the guide arm or the guide rod according to fracture types and screw placement requirements. Through the virtual space bone nail planning path, the guiding device ensures that the screw can be accurately placed along the preset path, and the risk of operation errors is reduced.

The application relates to the field of medical devices, in particular to a cervical vertebra anterior path screw placement guide, which comprises a guide cylinder, one end of which is used for being embedded into a head embedding groove on an implant main body to guide the installation of a fixing screw, and the other end of which is provided with a holding part; a support body is used for supporting and guiding one end of the guide cylinder close to the holding part to adjust the placement angle of the guide cylinder; the support body comprises a support rod, a fixing part arranged at one end of the support rod and used for being connected with the implant main body, and an adjusting part arranged at the other end of the support rod and used for being connected with the guide cylinder; the adjusting part is connected with one end of the guide cylinder close to the holding part and is used for adjusting the position of one end of the guide cylinder close to the holding part in two-dimensional directions. The application has the effect that the installation angle of the fixing screw can be ensured to be correct, the installation of the implant is facilitated, and the firmness of the implant is ensured.

This invention provides a device for assisting in the precise and rapid placement of distal tibiofibular screws, relating to the field of medical devices. Its features include: a steel plate with multiple threaded holes; a sleeve mounted on the steel plate, the sleeve matching the threaded holes; a hollow tube on one side of the sleeve; a telescopic mechanism between the sleeve and the hollow tube; a fixing mechanism connecting the telescopic mechanism and the hollow tube; a measuring mechanism rotatably mounted on the hollow tube; and the telescopic mechanism including a first telescopic rod, one end of which is fixedly connected to the sleeve. The advantages of this invention are: by providing stable bone surface fixation, precise placement path guidance, a quickly adjustable and locking telescopic structure, reliable angle fixation, and real-time intraoperative depth and angle monitoring, it significantly improves the accuracy, repeatability, and surgical efficiency of distal tibiofibular screw placement, while reducing the risk of complications.

This invention provides a combined hip joint revision filler structure, comprising: an iliac wing assembly, which includes an acetabular cup support and an iliac wing fixation portion integrally formed on the acetabular cup support; the outer side of the acetabular cup support is used to fit and provide support to the patient's acetabular cup, and the inner side of the iliac wing fixation portion is used to fit and fix to the patient's iliac wing; and a filler block, which is fixed to the iliac wing assembly and includes a fusion surface for fitting the patient's hip defect bone from below and a contact surface for fitting the inner side of the acetabular cup support. This invention improves the stability of the fixation structure by fitting and fixing the inner side of the iliac wing fixation portion to the patient's iliac wing, and also improves the convenience of subsequent positioning and screw placement. Simultaneously, the filler block also meets the need to fill hip defect bone, solving the problems of difficult positioning and screw placement of existing pre-made metal acetabular pads, and the inability to fill bone defects, which easily leads to acetabular prosthesis loosening.