165 results about "Osteotomy" patented technology

A patient specific instrument is disclosed for correcting a condition present in a patient. The patient specific instrument includes a body that includes an inferior side having a bone engagement surface shaped to match a first surface of a first bone and a second surface of a second bone of a joint. The instrument also includes a superior side having a first guide feature and a second guide feature that together, with the bone engagement surface overlying the first surface and the second surface, are positioned to guide resection of the first bone and the second bone during a surgical osteotomy for correcting the condition. The body is configured to seat transverse to the joint with the bone engagement surface engaging the first surface of the first bone and the second surface of the second bone.

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and / or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and / or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and / or the second surface.

The invention provides a distraction device and distraction equipment suitable for wedge high tibial osteotomy, and relates to the technical field of medical surgical instruments, the distraction device comprises a support, a first knife group, a second knife group and a first actuating part; the first cutter set is arranged on the support and protrudes out of the support in the first direction. The second cutter set is arranged on the support and protrudes out of the support in the second direction forming a first included angle with the first direction. And the first actuating part is configured to drive the bracket to rotate around the fixed shaft of the rotating shaft, so that the first knife group or the second knife group faces and extends into the bone seam. Wherein the thickness of the first knife group is configured to be smaller than that of the second knife group.

A personalized ankle osteotomy 3D printing guide plate comprises a 3D printing main body which is fixed to an operation part through a kirschner wire during use, and is characterized in that a guide hole penetrating through the main body and a plurality of positioning holes are formed in the main body, the guide hole is used for guiding the osteotomy cutting direction, the positioning holes are used for allowing the kirschner wire to penetrate through, and the 3D printing main body is designed through computer aided design; the inner side face of the main body of the guide plate is matched with the peripheral face of the tibia of the surgical site, personalized customization can be carried out according to the shape of the peripheral face of the tibia of the surgical site of a patient, a surgical auxiliary tool which is more suitable for the condition of the patient and is simple in structure is provided for the patient, and the guide hole can better guide operation of a doctor during surgery. The main body is fixed on the peripheral surface of the tibia through the positioning hole by using a kirschner wire, so that the main body can be more stably fixed on an operation part.

A surgical kit for performing a tibial tubercle osteotomy (TTO) is provided. The surgical kit comprises a primary surgical module configured to be secured to a patient's tibia and a bone-fastener predrilling module. The primary surgical module has a bone-contacting surface configured to be superposable against the patient's tibia and conforming thereto in a single predetermined position and orientation and an operative side. The primary surgical module includes an anchor portion securable to the patient's tibia, a primary cutting portion defining a coronal cutting plane, and a proximal cutting portion defining a proximal cutting plane. The coronal and the proximal cutting planes are configured to guide a surgical cutting tool to create a resection in the patient's tibia and to at least partially delimit a tibial tubercle fragment.

According to the novel osteotomy fixator, a plurality of through holes and positioning holes are formed in a connecting plate and are accurately matched with connecting holes in a supporting plate, so that a multi-point fixing system is formed, and it is ensured that the supporting plate and the connecting plate are stressed in a balanced and stable mode in any direction. In addition, mounting rings are arranged at the two ends of the supporting plate, and a third screw is arranged in each mounting ring to serve as an auxiliary fixing point. By means of the design, the fixing strength is improved, concentrated pressure generated by the device on the sclerotin is further dispersed, stress is more uniform, and therefore the risk of sclerotin injury is effectively reduced. The mechanical stability of the device is greatly improved through combination of the mounting ring and the multiple screws, and displacement or looseness caused by external force or movement of the patient is prevented.

The invention discloses a characterization method for describing tibia malformation correction path features, and the characterization method comprises the following steps: S1, building a bone section model, and modeling a bone section after osteotomy into a closed ring surface with the tail end of the bone section as the center; s2, according to the total correction period, the total adjustment amount of all traction rods of the parallel external fixator is averagely distributed every day, and then joint space equal-interval discrete planning is achieved; s3, constructing correction path characteristic evaluation indexes including rod length adjustment rate, bone section position stretching rate and bone section posture stretching speed; s4, the new bone shape is visually represented, the growth process of the bone section is represented as a series of discrete closed ring surfaces along the correction path, and the new bone shape is represented as the volume swept by the series of discrete closed ring surfaces along the correction path. According to the method, the visual representation of the new bone generation process in the malformation correction process is realized, so that a clinician is assisted to carry out feasibility analysis and evaluation on a preoperative correction prescription.

The application provides a sterile protection device for an arthroplasty osteotomy process, which comprises a bending rod, both ends of the bending rod are fixedly connected with receiving bending plates, a single receiving bending plate is fixedly connected with a ring-shaped support, a protection assembly is arranged on the ring-shaped support, a switching device is arranged on the receiving bending plate, and the arc-shaped inner side of the receiving bending plate is fixedly connected with a rectangular air bag; the protection assembly comprises electric push rods which are installed on the ring-shaped supports, the number of the electric push rods is four, and two electric push rods are arranged on a single ring-shaped support in a group. The protection assembly can be constructed into different protection modes above the protection assembly, and can better protect personnel in the operation and after the operation.

Orthopedic implants, surgical tools and surgical methods. More particularly, a system for surgical treatment of the elbow region for various fractures. The implants include an assortment of humerus plates, an olecranon plate system, and an elbow stabilization system. In order to assist in surgery, the system includes guides for the humerus, a coronoid fracture reduction clamp and an olecranon osteotomy clamp. Methods of using the various devices are also disclosed.

This application provides a knee femoral prosthesis. The knee femoral prosthesis includes: an anterior portion configured for fitting onto the distal anterior condylar osteotomy surface of the femur; a posterior portion configured for fitting onto the distal posterior condylar osteotomy surface of the femur; a middle portion configured to connect the anterior and posterior portions; and at least two through-holes configured to receive fasteners to secure the knee femoral prosthesis to the distal femur. The at least two through-holes include through-holes whose bore axes intersect or are opposite to each other. Using the knee femoral prosthesis according to this application, a more targeted prosthesis fixation strategy can be provided based on the patient's individual condition, thereby achieving better initial prosthesis stability. Furthermore, this application also relates to a knee prosthesis system incorporating this prosthesis.

The present application relates to the technical field of surgical robot control, and a laser osteotomy forming assisted ankle joint replacement surgery robot control method and system, comprising: using a surgical robot to cut and shave a simulated ankle bone to obtain an original osteotomy depth and a target sound wave signal group, identifying an osteotomy laser feature group of the target sound wave signal group, adjusting an original laser parameter group to obtain a replacement laser parameter group, performing a laser osteotomy test based on the replacement laser parameter group to obtain an adjusted osteotomy depth and an adjusted sound wave signal set, identifying an adjusted laser feature group set of the adjusted sound wave signal set, calculating a correlation intensity value, and determining a target laser parameter group set based on the correlation intensity value. The present application can improve the stability and accuracy of the laser osteotomy forming assisted ankle joint replacement surgery robot in cutting and shaving under complex geometric and complex material conditions, and improve the intelligent degree of the surgical robot control.

The present application relates to the medical image processing technical field, specifically to a kind of knee arthrotomy surgery image data processing method.The method includes: obtaining the highlight area and bone tissue area in the gray image of knee arthrotomy surgery image;The distribution of highlight area and bone tissue area is analyzed to obtain the degree of dependence of highlight area;Obtain the edge gradient intensity index of highlight area;The gradient direction angle of edge pixel point is obtained, according to the edge gradient intensity index of a highlight area, the gradient direction angle of each edge pixel point and the pixel point gray value to obtain the reliability index of the highlight area;Further, the reliability of highlight area is obtained, and the calcification point area is obtained by screening;Finally, according to the reliability of calcification point area, the initial color gaussian function parameter is corrected, and the calcification point area is filtered based on the initial color gaussian function parameter of the corrected using bilateral filtering.The present application can more accurately filter knee arthrotomy surgery image.

The invention discloses a fitting type adjustable gasket device for wedge-shaped high tibia osteotomy with an inner opening. The fitting type adjustable gasket device comprises an upper cover, a floating cover, a double-side different-curve cam, a worm gear-worm transmission pair and a base, the worm gear is driven by rotating the worm, and then the double-side different-curve cams are driven to rotate synchronously. The double-side different-curve cam is unique in design, and the curved surfaces of the cams on the two sides of the double-side different-curve cam have specific curvature radius difference. In the rotation process of the cam, the curvature radius difference is utilized to accurately drive the floating cover to stably lift in the vertical direction, and meanwhile, the floating cover can controllably rotate around a coronal shaft. The combined movement mechanism enables the device to accurately generate the required coronal plane angle beta at one time in the operation. By means of the design, accurate adjustment of the angle is achieved, more importantly, large-area and uniform face-face contact can be effectively promoted to be formed between the osteotomy face and the floating cover, and therefore the supporting stability is remarkably improved, the risk of bone face collapse caused by local stress concentration is thoroughly eliminated, and reliable structural support is provided for postoperative recovery.

The application relates to the technical field of orthopedic surgery navigation, and discloses a high-position tibial osteotomy navigation method, a system and a storage medium, and a communication method which comprises the following steps: generating a 3D bone model of a lower limb of a patient based on medical images and performing preoperative osteotomy planning; performing visual positioning system detection and spatial calibration of a surgical instrument; installing an optical marker array, collecting actual bone point cloud data, and realizing alignment of the model and the bone through a registration algorithm; in-surgery real-time calculation and display of deviation of an operation track and planning parameters; post-surgery reconstruction of a lower limb force line, and comparison and evaluation with preoperative planning and in-surgery navigation records. The system comprises a hardware execution unit and preoperative planning, calibration verification, in-surgery registration, real-time navigation and post-surgery evaluation modules. The application realizes full-process integration of preoperative accurate planning, in-surgery real-time closed-loop navigation and post-surgery quantitative evaluation, and significantly improves the precision, repeatability and predictability of clinical effects of surgery.

Logic may provide a deformity analysis to create a treatment plan for external fixators. Logic may further perform additional refinements to the treatment plan to improve the patient experience. Logic may further include pre-operative osteotomy to select an osteotomy and to provide real-time updates to a post-operative image based on changes to an osteotomy line, orientation, and / or rotation point. Logic may facilitate movement of one or two portions of a medical image to determine an alignment of bone segments in the portions of the medical image. Logic may generate deformity parameters based on a combination of translations and / or rotations of the movement to align the portions. Logic may create a treatment plan including a prescription for an external fixator based on deformity parameters.

Embodiments of the present application pertain to the technical field of computer-assisted medical treatment and provide an orthopedic surgery guidance method and apparatus, and an orthopedic surgery guidance device. The method comprises: acquiring preoperative planning information of current orthopedic surgery; determining, according to the preoperative planning information, a target pose for a guide plate used during surgery, wherein the guide plate is designed to have at least one circular hole for guiding a drilling operation and at least one square groove for guiding an osteotomy operation; determining the current real-time pose of a guide plate mounted on the tail end of a robotic arm; and adjusting the guide plate from the real-time pose to the target pose by controlling movement of the robotic arm. The described method can be used to guide osteotomy operations and drilling operations in orthopedic surgery on the basis of the same guide plate. By means of accurate navigation and robotic arm control, a surgical target can be accurately positioned and operated.

The invention discloses a full-automatic bone saw, belongs to the field of orthopedic surgical instruments, and is used for solving the problem that an existing osteotomy bone saw is inconvenient to use. The bone saw comprises a clamping seat, a sliding table is slidably connected to the clamping seat, a rotating shaft is rotatably connected to the sliding table, a mounting rod is fixedly connected to the rotating shaft, a sliding block is slidably connected to the interior of the mounting rod, and a hacksaw is fixedly connected to the sliding block; a saw blade is mounted on the hacksaw; the sliding block can slide on the mounting rod in a reciprocating manner, when the sliding block slides in a reciprocating manner, the rotating shaft rotates to press the saw blade downwards, and when the pressing resistance of the saw blade is increased, the sliding table slides relative to the clamping seat, so that the sawing working position of the saw blade is changed; the bone saw can achieve automatic sawing, meanwhile, when the sawteeth are abraded, the positions of the sawteeth in the sawing state on the saw blade can be changed, and stable osteotomy is guaranteed.

A three-dimensional model for demonstrating an osteotomy surgical procedure is provided. The three-dimensional model includes a support, a first bone coupled to the support, and a second bone coupled to the support. The first bone includes a body defining a recess including a surface having an embedded magnet, a removable intermediate bone block disposed within the recess, and a removable surface bone block, disposed within the recess, including at least one embedded magnet. The removable intermediate bone block and the removable surface bone block are associated with the osteotomy surgical procedure.

Tibial plateau leveling osteotomy (TPLO) bone plates for use in four-legged animals including canines and felines are disclosed, with the bone plates having one or more suture holes configured for suturing muscle such as the pes anserinus muscle group to the TPLO bone plate. The one or more suture holes may be positioned on a leading edge of the bone plate and shaped so that the tails of a suture engaged with the suture hole are directed medially from the underlying fixed bone.

The application provides a femoral stem prosthesis for fixing a femoral greater trochanter bone block, relates to the technical field of femoral stem prostheses, and comprises a stem body which is positioned between a femur and a bone block through a group of upper fastening steel wires and multiple groups of lower fastening steel wires, the stem body comprising an upper stem part, a lower stem part and a neck part, the vertical outer contour side of the upper stem part being sequentially connected in a head-to-tail manner and comprising a top inclined contact surface, a reserved surface, an inclined expansion surface, a bottom inclined contact surface and a first adduction arc surface, the top inclined contact surface being connected with the neck part, and the bottom inclined contact surface being connected with the lower stem part; a thickening unit; the thickening unit is used for increasing a hip abduction muscle force arm and serving as a screw mounting base; and an extension part. The steel wire cerclage of the application provides uniform pressure and wrapping fixation of the tension band principle, the locking screw provides direct rigid anchoring and shear / torsion resistance; the strong proximal pulling force generated by the abduction muscle contraction can be effectively resisted, and the risk of proximal displacement of the bone block can be significantly reduced.

Osteotomy cutting systems and surgical methods are provided herein. One surgical method includes coupling, to a cuneiform of a subject, a surgical apparatus for use in facilitating correction of a bunion and coupling the surgical apparatus to another bone of the subject. Another surgical method includes coupling a surgical apparatus to a cuneiform and metatarsal of a subject, coupling a cutting block for alignment at a joint between the cuneiform and the metatarsal, and performing a surgical procedure utilizing the surgical apparatus and the cutting block to correct a bunion. A further surgical method includes providing a surgical apparatus for use in facilitating correction of a bunion in a subject in which the surgical apparatus is configured to couple to a cuneiform and a metatarsal of the subject and performing a surgical procedure utilizing the surgical apparatus while the surgical apparatus is coupled to the cuneiform and the metatarsal.

The invention provides a unicompartmental knee arthroplasty surgical robot system and a control method, and the system comprises a preoperative planning module which is used for carrying out the segmentation and reconstruction of a knee joint according to an obtained knee joint medical image, carrying out the preoperative planning, and determining a unicompartmental knee arthroplasty scheme; the positioning navigation module is used for carrying out registration on the intraoperative entity knee joint and the preoperative knee joint three-dimensional model according to the navigator and the tracer so as to map a unicompartmental knee replacement scheme and track the poses of the guide equipment and the entity knee joint in real time; and the mechanical arm control module is used for planning a path from the mechanical arm to the preparation position and controlling the mechanical arm guide equipment to move to the thighbone preparation position and the tibia preparation position. In this way, the mechanical arm can be controlled to assist in completing the osteotomy operation of unicompartmental knee arthroplasty in a pre-operation planning and intra-operation navigation mode, and the problems that the operation level is uneven and the operation effect is not expected due to different individuals in the current manual operation are solved.

Implant for use in Tibial Plateau Leveling Osteotomy Surgery (TPLO), in particular for a dog or a cat, wherein the Implant is attachable to the tibial corpus, in particular to a medial surface of the tibia, and the tibial head after circular-segment like cutting and rotating a caudal fragment by screws through screw holes that extend along a screw hole axis from a medial surface to a lateral surface, including a proximal head portion, a cranial extension and a caudal extension.

The invention provides an intelligent control method, system and equipment for an oral cranio-maxillofacial osteotomy robot, a medium and the robot. The intelligent control method for the oral cranio-maxillofacial osteotomy robot comprises the steps that S1, a whole-head CT image of a surgical object is obtained and preprocessed; s2, performing instance segmentation cooperatively by using a pre-constructed cross-modal data conversion interface and a pre-constructed instance segmentation model; s3, image coding and text coding results are input into a Gaussian mixture model after being subjected to weighting processing, decoding is carried out in combination with site information, and osteotomy path trajectory points under an optical tracking system are generated; and S4, calculating through the coordinate transformation matrix to obtain an osteotomy path track under the robot coordinate system. The system has the advantages of being high in efficiency, high in safety, high in intelligent degree and convenient to operate.

The application provides a tibial osteotomy measuring device, which comprises: a valgus angle measuring member and a base plate cooperatively showing a valgus angle; a first end of a first measuring member can be matched with the lowest part of the medial tibia, a second end of the first measuring member is movably arranged in a first sliding seat, and a middle part of the first measuring member is movably arranged in a first guide groove; a lateral osteotomy depth measuring mechanism and a medial osteotomy depth measuring mechanism are arranged at intervals, a first end of a second measuring member can be matched with the lowest part of the lateral tibia, a second end of the second measuring member is movably arranged in the first sliding seat, and a middle part of the second measuring member is movably arranged in the first guide groove; the medial osteotomy depth measuring mechanism and the lateral osteotomy depth measuring mechanism are driven and matched with the valgus angle measuring member. The technical scheme of the application effectively solves the problem that the osteotomy measuring scale in the related art cannot simultaneously indicate the valgus angle and the medial and lateral osteotomy depth.

TPLO plate includes a body and first and second distal holes. The body extends longitudinally from a proximal end to a distal end and defined via a first surface which, in an operative configuration, faces away from a bone and a second surface which, in the operative configuration, faces toward the bone. The body includes a proximal portion configured to be positioned over a cut and repositioned proximal segment of a tibia during a procedure and a distal portion extending along a longitudinal axis and configured to be positioned over a distal segment of the tibia during the procedure. The first hole extends through a proximal end of the distal portion of the body from the first surface to the second surface. The first hole includes an elongated portion and an offset portion open to and in communication with one another. The elongated portion extends along the longitudinal axis and an offset portion extending distally from the elongated portion along an offset axis, which extends at an angle relative to the longitudinal axis. The second hole extends through the distal portion of the body distally of the first hole from the first surface to the second surface. The second hole extends along the longitudinal axis in alignment with the elongated portion of the first hole and including a sloped compression surface along a distal portion thereof. The first hole is configured such that when a first distal compression to the osteotomy cut is applied via insertion of a bone fixation element into a distal portion of the second hole. The element translates along the offset axis from a central axis to a point of intersection to provide a cranial compression to the osteotomy cut.

The invention provides a rigidity-variable mechanical arm osteotomy control method and device, and the method comprises the steps: obtaining osteotomy information of a position to be subjected to osteotomy, and planning an osteotomy region; dividing the osteotomy area into a sensitive area and a non-sensitive area; and controlling the mechanical arm to perform osteotomy in the sensitive area and the non-sensitive area according to different mechanical arm rigidities, wherein the mechanical arm rigidities in the sensitive area are greater than the mechanical arm rigidities in the non-sensitive area. According to the method, the osteotomy area is divided into the sensitive area and the non-sensitive area, large rigidity control is adopted in the sensitive area, small rigidity control is adopted in the non-sensitive area, and therefore high precision and flexibility are both considered, and the safety and operation convenience of an osteotomy operation are improved.

A maxillofacial device includes a substructure with a shape that is custom made to a patient's maxillofacial area; a framework coupled to the substructure, the framework and substructure being made of a single continuous material or a combination of materials, the framework having a plurality of grid elements; and one or more plate fixations coupled to the substructure. The framework has a shape that is custom made to fit the patient's maxillary sinus area. The framework is configured to be surrounded by a bone graft material, wherein the substructure and framework provide rigidity and stiffness for the bone graft material.

The application discloses a tibial osteotomy positioning assembly, a gap measuring assembly, an osteotomy device and an osteotomy system. The tibial osteotomy positioning assembly comprises a mounting mechanism and at least one measuring piece. The mounting mechanism is used for connecting with a tibial osteotomy block. The at least one measuring piece is used for connecting with the mounting mechanism. The mounting mechanism can place the at least one measuring piece in a first measuring position and a second measuring position. The at least one measuring piece is located at different positions of the mounting mechanism when being placed in the first measuring position and the second measuring position. The measuring piece in the first measuring position is used for being inserted between an inner condyle of a femur and an articular surface of a tibia, so as to measure the distance between the inner condyle and the articular surface, and to position the relative positions of the tibial osteotomy block and the articular surface. The measuring piece in the second measuring position is used for being inserted between an outer condyle of the femur and the articular surface of the tibia, so as to measure the distance between the outer condyle and the articular surface, and to position the relative positions of the tibial osteotomy block and the articular surface.

The utility model relates to an extramedullary positioning far-end osteotomy module based on 3D printing, which belongs to the technical field of knee joint surgical instruments and comprises a far-end osteotomy module body, the far-end osteotomy module body is mounted on a sliding rod of a guide positioning plate, an elastic locking structure is arranged on the far-end osteotomy module body and located on one side of the sliding rod, and the elastic locking structure is connected with the far-end osteotomy module body. The elastic locking structure comprises a pressing end and a clamping end, the fixing side of the clamping end is fixed to the far-end osteotomy module body, clamping teeth are arranged on the clamping side of the clamping end, and the clamping teeth are matched with the sliding teeth on the sliding rod; a positioning groove is formed in the bottom of the far-end osteotomy module body, and reinforcing ribs are arranged on the two sides of the positioning groove. According to the intramedullary nail, extramedullary positioning is adopted, the application range is wider, the integrated forming technology is adopted, the cost is greatly reduced, the production period is shortened, the precision is higher, the infection risk is reduced, locking can be achieved through elastic deformation of medical-grade nylon materials, and the safety can be improved through the reinforcing rib structure adopted at the bottom.