227 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.

The invention provides an osteotomy path adjusting system in robot-assisted knee arthroplasty, and belongs to the technical field of knee joint detection. The system comprises a multi-modal data acquisition unit which comprises a knee joint pressure measuring gasket, an optical acquisition module and a kinematics data acquisition module, the knee joint pressure measuring gasket is used for acquiring knee joint pressure signals in an operation, and the optical acquisition module is used for acquiring relative poses of a femur and a tibia; the kinematics data acquisition module is used for acquiring kinematics data of the mechanical arm; the main control calculation unit comprises a data fusion module and a dynamic compensation module, and the data fusion module is used for constructing a synchronous spatio-temporal data set; and the dynamic compensation module is used for outputting a compensation instruction to the mechanical arm to adjust an osteotomy path based on the synchronous spatio-temporal data set, the preoperative predicted pressure prediction matrix and the soft tissue stiffness matrix. The pressure change in the operation can be responded in real time, the operation precision of the knee arthroplasty is improved, and the dependence on the experience of doctors can be reduced.

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 an auxiliary flexible fixing device for oral cranio-maxillofacial osteotomy, which is mounted on a bed body, pawl rack assemblies are respectively arranged on two sides of the bed body, the pawl rack assemblies are connected with side fixing plates of the bed body through supporting assemblies, and the pawl rack assemblies on two sides are respectively connected with flexible clamp assemblies through guide rail connecting pieces; the flexible clamp assembly comprises a positioning plate, the positioning plate is connected with the guide rail connecting piece through a supporting column and a side plate in sequence, a plurality of pressing columns arranged at intervals are arranged on the positioning plate, second springs are arranged between the ends, away from the positioning plate, of the pressing columns and the side plate, and ball heads are arranged at the ends, exposed out of the positioning plate, of the pressing columns. The supporting assemblies, the pawl rack assemblies and the flexible clamp assemblies which are used in pairs are adopted, the mode of one-time moving positioning and double locking is completed, and due to reverse locking devices of pawls and ratchets, the first locking mode is achieved; the pressing column of the flexible fixing device fits the shape of the skull of the patient, the pressing column is locked, and a second locking mode is achieved.

The invention discloses a control method and device of a surgical robot, a storage medium and electronic equipment. The method comprises the following steps: determining a plurality of simulated osteotomy surfaces of a target object according to a preoperative plan of knee joint replacement; under each simulated osteotomy surface, calculating a working space of the surgical robot to obtain a plurality of first working spaces; and determining a target working space of the surgical robot according to the plurality of first working spaces, and controlling the surgical robot to execute actions based on the target working space. By means of the method and device, the problem that in the prior art, due to kinematics constraint, an under-degree-of-freedom surgical robot cannot be adjusted to all necessary operation postures, and the accuracy of surgical robot control is low is solved.

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.

The invention provides a multi-column integrated biological fixation partial femoral head replacement device, and relates to the field of medical instruments. The device comprises a bone nail, an auxiliary fixing piece and a joint prosthesis, the bone nail is provided with a first end part and a second end part nailed into a femoral neck medullary cavity, and the first end part, the auxiliary fixing piece and the joint prosthesis are integrally formed; the auxiliary fixture has a first surface and a second surface in contact with the conical osteotomy femoral head to prevent sinking and lateral rotation. The joint prosthesis only replaces the cut part of the necrotic femoral head, more normal sclerotin can be reserved, trauma is small, femoral head supporting and bearing are not affected or changed, long-term stability of the joint prosthesis is guaranteed, and meanwhile future rebuilding is facilitated. In addition, the first end part, the auxiliary fixing piece and the joint prosthesis are integrally formed, so that joint prosthesis failure caused by looseness or corrosion among the first end part, the auxiliary fixing piece and the joint prosthesis can be avoided.

A surgical guide adapted to receive and guide a surgical instrument for performing a bone osteotomy, the surgical guide including a body formed as an elongate block, the block further including first and second fixation apertures, the second fixation aperture adapted to receive a secondary fixation device on a second angle oblique to angle of the first fixation aperture, one or more further positioning apertures and a cutting channel.

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 utility model relates to a thighbone side guide plate based on two-point bridging type knee joint unicompartmental knee arthroplasty, which comprises a first auxiliary plate, a second auxiliary plate and a third auxiliary plate, modeling is carried out through knee joint CT data before an operation, and two cartilage-free bone surfaces around a thighbone operation area are set as supporting points, so that the thighbone side guide plate can be used for knee joint unicompartmental knee arthroplasty. A 3D printing technology is used for printing a guide plate used for thighbone side and tibia side positioning and osteotomy, the guide plate is provided with a first auxiliary plate, a second auxiliary plate and a third auxiliary plate, the second auxiliary plate and the third auxiliary plate can be directly attached to the bone surface of cartilage-free tissue, the position of the first auxiliary plate above an operation area is achieved through two-point positioning, and the position of the second auxiliary plate above the operation area is achieved through two-point positioning. The first auxiliary plate does not need to be attached to the bone surface of the operation area, that is, the first auxiliary plate is not affected by cartilage tissue above the operation area, the precision error caused by the cartilage tissue of the osteotomy area is avoided, an operator can be guided more rapidly and accurately to conduct positioning and osteotomy in the operation, and the operation time and process are shortened.

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.

1. The name of the design product: soft tissue protection pry plate pull hook during osteotomy. 2. The use of the design product: pry plate pull hook for protecting surrounding soft tissue and nerve and blood vessels during osteotomy. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

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.

The application provides a force line fixing device for tibial high osteotomy, and relates to the technical field of osteotomy instruments.The force line fixing device for tibial high osteotomy comprises a base, a force line measuring assembly and a fixing assembly, the force line measuring assembly is fixed on the base for measuring the force line, and the fixing assembly is arranged on the base for fixing the ankle joint in a proper position.The fixing assembly comprises a height adjusting assembly arranged on the base, a fixing part for placing and fixing the ankle joint, the fixing part is connected to the height adjusting assembly and can be adjusted in height with the height adjusting assembly, and a universal adjusting assembly connected to the height adjusting assembly and the fixing part for adjusting the angle of the fixing part.The application can reduce the radiation dose of medical staff, improve the accuracy of limb force line measurement, reduce measurement error and improve the reliability of measurement results.

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.

The tantalum coating titanium metal 3D printing structure comprises a tibia head, a tibia and a gasket, the wedge-shaped gasket is obliquely inserted between the tibia head and the tibia, the gasket comprises a gasket tongue, a gasket plate and a through hole I, the gasket tongue, the gasket plate and the through hole I are integrally formed, the gasket plate is located at the tail end of the gasket tongue, and the gasket plate is located at the tail end of the gasket tongue. The width of the gasket plate is 2-5mm larger than that of the gasket tongue, two protruding through holes I are formed in each of the two sides of the gasket plate, four screws penetrate through the through holes I to be fixed to the tibia head and the tibia, and the situation that the low position of the patella and the track of the patella change after an operation is eradicated.

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.

The utility model discloses a tibial prosthesis intramedullary positioning system which comprises a tibial plateau prosthesis, an eccentric adjusting component and an intramedullary rod. The tibial plateau prosthesis comprises a plateau part and a stand column, the eccentric adjusting component comprises a first connecting part and a main body part, the first connecting part is arranged at the upper end of the main body part, the central axis of the first connecting part and the central axis of the main body part are parallel and spaced, and the first connecting part is coaxially pivoted to the stand column; the intramedullary rod comprises a second connecting part and a rod part, the second connecting part is arranged at the upper end of the rod part, the central axis of the second connecting part and the central axis of the rod part are parallel and spaced, and the second connecting part is coaxially pivoted to the main body part. The position and angle adjustment within the plane range is achieved through the eccentric adjusting component, the position of the intramedullary rod is made to be matched with the tibia marrow cavity, the optimal coverage of the tibia platform prosthesis osteotomy plane is achieved, and the good stress of the tibia extension rod is achieved.