28 results about "Reconstruction surgery" patented technology

The invention provides a preoperative planning method for ligament reconstruction operation based on multi-modal data. The preoperative planning method of the ligament reconstruction operation based on the multi-modal data comprises the following steps: acquiring joint medical images of multiple modals of an operation site, and performing registration and fusion processing on the acquired joint medical images of multiple modals to obtain a joint medical image multi-modal fusion result; performing segmentation processing according to the joint medical image multi-modal fusion result to obtain a joint segmentation result; performing key point detection according to the joint segmentation result to obtain a key point detection result; according to the key point detection result, a ligament reconstruction preoperative planning scheme is generated.

The application provides a kind of extrusion nail and its assembly for orthopedics, which is applied to the technical field of orthopedic surgical instruments.The extrusion nail adopts a threadless structure and is composed of a nail body, a barb and an extrusion groove, and can be adapted to different length bone tunnels through the head-to-tail matching of multiple nails.The assembly includes an execution end and an impact handle, which can provide linear impact force to realize the linear implantation of the extrusion nail.The application replaces the rotary screwing with linear advancement, fundamentally avoiding the shearing and torsional injury of ligaments, and has the advantages of precise implantation, convenient operation and stable fixation, which meets the clinical needs of orthopedic ligament reconstruction surgery and improves the safety of surgery and the quality of postoperative healing.

The utility model discloses a degradable fixing ring for fixing an external auditory canal flap in external auditory meatus plasty, which is formed by bending and connecting a degradable belt, nesting structures which can be nested together are arranged at the head end and the tail end of the degradable belt, and a degradable supporting ring can be stretched and enlarged by stretching the connection at the nesting structures, so that the degradable fixing ring can be used for fixing the external auditory meatus flap in the external auditory meatus plasty. Limiting structures are further arranged at the head end and the tail end of the degradable belt, the limiting structures can limit the degradable supporting ring to shrink backwards after the degradable supporting ring extends and becomes larger, and a connecting part used for being fixedly connected with an external auditory canal transplantation flap is arranged on the degradable supporting ring. The external auditory canal graft flap fixing device can fix an external auditory canal graft flap, reduce the number of times of returning to hospital of a patient, and improve the compliance and medical experience of the patient.

A method of providing information for predicting the prognosis of breast reconstruction surgery and a system for predicting the prognosis of breast reconstruction surgery is provided. By using the method or system for providing information for predicting the prognosis of breast reconstruction surgery according to one specific example of the present invention, it is possible to predict the possibility of implant rupture in a subject who has undergone or is scheduled to undergo two-stage breast reconstruction surgery, and it is possible to prepare an appropriate treatment according to this prediction, and to adjust the interval between breast reconstruction surgeries so as to lower the possibility of implant rupture. In addition, it is possible to provide information so that an implant with a low possibility of rupture may be selected.

The present invention relates to a rupturing tool for surgical interventions and to a rupturing system comprising the rupturing tool and a rupturing movement generator device. The rupturing tool and system are intended for the field of traumatology, particularly for the creation of bone tunnels suitable for the proper anatomical reconstruction of tendons and ligaments; for example, for the creation of bone tunnels in interventions for reconstructing the anterior cruciate ligament (ACL) of the knee joint and in interventions for repairing the supraspinatus tendon of the shoulder joint.

The utility model belongs to the field of medical apparatus and instruments, disclose a kind of quadriceps tendon minimally invasive tendon harvesting device in knee ligament reconstruction surgery, including stem body;Any end of stem body is detachably connected with tendon harvesting head;Channel for arthroscope insertion is opened in stem body inside, channel is coaxially placed with stem body, channel penetrates both ends of stem body;Transparent glass disc is equipped in stem body inside, glass disc is coaxially placed with stem body, and glass disc is located in one end of stem body close to tendon harvesting head, the projection of channel along its axial direction is located in the inside of glass disc peripheral wall, and the connection position and external shape structure of tendon harvesting head make the axis extension direction of channel keep open visible space;Medical staff can operate by single hand holding stem body and arthroscope, and can ensure arthroscope and stem body synchronous movement in operation process, effectively solve the problem that existing technology exists when holding tendon harvesting instrument and arthroscope with two hands, operation is complicated and difficult to move synchronously, easy to cause arthroscope vision unstable.

The invention provides a degradable antibacterial bioactive interface screw and a manufacturing method thereof. The interface screw comprises a screw shell, a head part, a rod part with external threads and a tail part are sequentially arranged in the axial direction of the screw shell, and the tail part is of a conical structure; an inner core penetrating through the rod part is arranged in the screw shell, the inner core is of a network-shaped porous structure, and a release hole channel communicating with the inner core is formed in the outer surface of the rod part; the inner core is filled with an antibacterial functional body, the antibacterial functional body comprises gallium-silver composite antibacterial particles, and the gallium-silver composite antibacterial particles are released into the external environment of the screw shell through the release hole channels. According to the technical scheme, the interface screw can promote bone-ligament interface healing, controllable release of antibacterial components is achieved, the structure can be flexibly adjusted through a digital model, and the interface screw is suitable for personalized ligament reconstruction operations.

The invention provides a multi-modal data processing method and device for ligament reconstruction surgery. The multi-modal data processing method for the ligament reconstruction operation comprises the following steps: acquiring multi-modal joint medical images of an operation site; inputting the multi-modal joint medical images into a pre-trained multi-modal medical image fusion model to obtain a joint medical image multi-modal fusion result output by the multi-modal medical image fusion model; and inputting the joint medical image multi-modal fusion result into a pre-trained joint segmentation model to obtain a joint segmentation result output by the joint segmentation model so as to construct a preoperative planning scheme of a ligament reconstruction operation based on the joint segmentation result.

This utility model discloses a bone tunnel length measuring device for total internal cruciate ligament reconstruction surgery, relating to the field of medical device technology. It includes a guidewire, one end of which is a traction end, and the other end is fixedly connected to a limiting measuring bead. A groove measuring device has a bent hole at one axial end, with the other end of the bent hole extending to the side wall of the groove measuring device. The bent hole at the end of the groove measuring device is for guidewire insertion, and the other end of the bent hole is for guidewire exit. The outer wall of the groove measuring device has graduation lines, and the guidewire has a tail end mark. This utility model is a bone tunnel length measuring device for total internal cruciate ligament reconstruction surgery. After the half-length tunnels on both sides are fabricated, this device can be introduced to accurately measure the actual coarse tunnel length, thereby solving the problem of inaccurate calculation of the sum of A+B+C in clinical practice. It can accurately verify the length of the woven tendon and the bone tunnel.

The present embodiment relates generally to methods of performing surgical technique maxillary sinus floor augmentation with a lateral approach using a pre-portioned and ready pre-packaged bone graft composition in gelatin bags and method of producing gelatin bags. In addition the present inventions can be widely used in other medical fields such as dentistry, orthopedic surgery, spine surgery, plastic and reconstruction surgery, sport medicine, trauma surgery, phinoplasty surgery and veterinary.

The invention provides a bone tunnel planning method and device for a ligament reconstruction operation. The bone tunnel planning method for the ligament reconstruction surgery comprises the following steps: acquiring an initial key point detection result of a surgical site; selecting a plurality of groups of candidate points on the joint three-dimensional model of the surgical site according to the initial key point detection result; according to the joint movement data of the surgical site, ligament length expansion and contraction amount data corresponding to the multiple preset angles of each group of candidate points are determined; and according to the ligament length expansion amount data corresponding to each group of candidate points under the plurality of preset angles, determining a target key point for constructing the bone tunnel.

The invention provides a navigation and positioning system and method for a ligament reconstruction surgical robot. The ligament reconstruction surgical robot navigation positioning method comprises the following steps: performing segmentation and reconstruction according to an obtained joint medical image of at least one modal to obtain a joint three-dimensional model, and performing preoperative planning according to the joint three-dimensional model to determine a ligament reconstruction surgical scheme; performing intraoperative registration according to the intraoperative registration points acquired during the operation and the preoperative registration points planned before the operation to obtain a registration result; generating an intraoperative navigation instruction according to the surgical scheme and the registration result; and ligament reconstruction surgery operation is assisted according to the intraoperative navigation instruction.

The application provides a three-dimensional nuclear magnetic resonance footprint area spatial positioning and morphological analysis method and system, comprising the following steps: S1, obtaining a weighted 3D MRI magnetic resonance image, and performing footprint area layer reconstruction; S2, obtaining an image parallel to the footprint area plane, and determining a spatial positioning area; S3, performing footprint area outlining, and segmenting the footprint area; and S4, performing spatial positioning analysis and morphological analysis on the footprint area. By adopting the 3D MRI reconstruction technology, the application can accurately evaluate the ACL femoral footprint area in the oblique sagittal plane which is tangent to the attachment point of the ACL and the femur, solves the inaccurate problem of the ACL femoral footprint area morphological evaluation in the traditional 2D MRI evaluation method, and thus provides more accurate ACL femoral footprint area morphological information for doctors, and further optimizes the effect of the ACL reconstruction surgery.

The application relates to a dynamic three-dimensional reconstruction method and system for liver resection, which comprises the following steps: obtaining initial mesh data based on preoperative CT images; obtaining two-dimensional projection images of a surgical area by using intraoperative CT to obtain target mesh data; constructing surface models by using the target mesh data and the initial mesh data respectively and performing rigid registration, and demarcating a model surface part with a larger deformation region as a to-be-reconstructed space; performing non-rigid deformation on the initial mesh region in the to-be-reconstructed space to reconstruct a high-resolution surface model of the to-be-reconstructed space; and replacing the corresponding part of the preoperative full-liver tissue accurate three-dimensional surface model with the generated high-resolution surface model of the to-be-reconstructed space. Compared with the prior art, the application solves the problems of high time complexity, high computing power requirement and incapability of dynamic monitoring of a local region in the prior art, realizes rapid reconstruction of a liver tissue surface of a surgical area in operation, and achieves the purpose of dynamic monitoring and auxiliary accurate resection in operation.

The invention provides a porcine acellular dermal matrix for hip joint labial glenoid reconstruction as well as a preparation method and application of the porcine acellular dermal matrix, and belongs to the technical field of biomedical materials. Cleaning and incubating the natural pig dermis tissue; then treating by using a solution containing EDTA-pancreatin and a solution containing a surfactant in sequence; and finally, washing to obtain the porcine acellular dermal matrix. According to the invention, the porcine acellular dermal matrix is treated by a specific process and is used as a heterogeneous hip joint labial glenoid reconstruction material, and good biocompatibility and tissue guiding function are shown. Meanwhile, the preparation method is simple, the raw material source is wide, and the problem of graft source limitation in the existing hip joint laparolabial glenoid reconstruction operation is solved.

This invention discloses a device and method for chordae tendineae-assisted mitral valve reconstruction, belonging to the field of minimally invasive cardiac surgical instruments. It includes a gripping component, a pressure bar sheath, a pressure bar, and a fixation frame. The innovative aspects of this invention are as follows: Innovative procedures: The traditional steps are simplified to "temporary fixation → assessment → final fixation," significantly shortening the operation time and improving the success rate; Precise control: The locking component can lock or release the pressure bar in real time at the gripping end, achieving stepless adjustment of the chordae tendineae height and preventing suture slippage; Repeatable adjustment: The tension of the chordae tendineae can be repeatedly fine-tuned during the operation, and the closure of the valve leaflets can be verified immediately, eliminating the need for repeated loosening and threading of sutures; Economical and safe: The overall structure is simple, resistant to high-temperature and high-pressure sterilization, and reusable, without increasing disposable consumables or patient costs; Minimally invasive compatibility: Particularly suitable for small-incision mitral valve repair techniques; This invention has outstanding advantages in simplifying the operation process, improving fixation accuracy, and reducing medical costs, and can be widely applied to various mitral valve chordae tendineae reconstruction surgeries.

The invention provides a knee joint dynamic simulation method and system. The method comprises the steps that a pre-operation planning scheme and an intra-operation actual image are registered; based on the registration result and the currently planned tunnel site, dynamic simulation of the knee joint is carried out; and generating a dynamic simulation view based on a dynamic simulation result, and displaying the dynamic simulation view. According to the method, the knee joint in the operation is dynamically simulated through the registration result in the operation and the current tunnel site, so that the current operation plan is verified, and the accuracy of the whole anterior cruciate ligament reconstruction operation is greatly improved.

The present invention relates to a rupturing tool for surgical interventions and to a rupturing system comprising the rupturing tool and a rupturing movement generator device. The rupturing tool and system are intended for the field of traumatology, particularly to the creation of bone tunnels suitable for the proper anatomical reconstruction of tendons and ligaments; for example, for the creation of bone tunnels in interventions for reinserting the supraspinatus muscle tendon of the rotator cuff of the shoulder joint or in interventions for reconstructing the anterior cruciate ligament (ACL) of the knee joint.

The application provides a pig acellular dermal matrix for hip joint labrum reconstruction and a preparation method and application thereof, and belongs to the technical field of biomedical materials. Natural pig dermal tissue is washed and incubated, then is treated with a solution containing EDTA-trypsin and a solution containing a surfactant in sequence, and finally is washed to obtain the pig acellular dermal matrix. The pig acellular dermal matrix is treated by a specific process, is used as a xenogenic hip joint labrum reconstruction material, and exhibits good biocompatibility and tissue guiding function. Meanwhile, the preparation method is simple, raw materials are widely sourced, and the limitation of a graft source in a current hip joint labrum reconstruction surgery is solved.

The application provides a knee anterior cruciate ligament reconstruction surgery whole-process simulation system, and constructs an end-to-end automatic simulation system composed of a main control program, four-level function execution units, resource monitoring and adaptive scheduling units. The system is based on a task state driving mechanism to organize process execution. The main control unit periodically pulls tasks through an API interface and distributes them to the corresponding units for processing. After the units complete the task, the state is automatically updated, forming a closed-loop control link. Each unit runs as an independent executable program and manages hot plug through a unified configuration file. It supports multi-case parallel scheduling. The resource monitoring and adaptive scheduling unit assesses the use of CPU, memory, network bandwidth, etc. in real time, dynamically adjusts the number of instances and the scheduling rhythm, effectively improves the system throughput efficiency and stability, reduces the dependence on personnel operation experience, and provides efficient and reliable technical support for personalized preoperative planning.

The invention provides a bone tunnel positioning method for knee joint ligament reconstruction surgery. The bone tunnel positioning method for knee joint ligament reconstruction operation comprises the following steps: acquiring a joint medical image of a knee joint; constructing a virtual coordinate system according to the joint medical image; wherein the virtual coordinate system comprises a rectangular bounding box constructed based on a Blumensaat line, the lower edge of the thighbone outer side condylar joint cartilage, the front edge of the intercondylar fossa and the posterior cortical edge; dividing a plurality of quadrants in the rectangular bounding box, and performing bone tunnel key point detection in a target quadrant in the plurality of quadrants to obtain a bone tunnel key point detection result; and generating a knee joint ligament reconstruction planning scheme according to a bone tunnel key point detection result.

Diversified grafts suitable for use in repair and reconstruction procedures are provided. Some diversified grafts comprise two or more heterogenous features which form regions having different preferred properties. A diversified graft useful for pre-pectoral breast reconstruction, meshing is provided on an upper pole of the diversified graft and a plurality of slits arranged in particular patterns is provided on a lower pole of the graft, whereby the upper pole has a greater expansion ability and the lower pole has lesser degree of expansion ability but maintains greater load bearing capacity which is necessary to support the lower pole of the breast undergoing reconstruction, while allowing for fluid egress. In other embodiments, the diversified graft comprises two or more components which are combined by attaching them to each other to form a larger graft of the required size. The components may be smaller pieces of the same material or different materials.

The invention discloses a pair of breast endoscope reconstruction operation grasping forceps, which comprises a handle, a pair of grasping forceps, a pair of grasping forceps, a pair of grasping forceps, a pair of grasping forceps, a pair of grasping forceps and a pair of grasping forceps, the forceps rod is connected with the handle and can rotate by 360 degrees relative to the handle; the forceps head is hinged to the end, away from the handle, of the forceps rod through a connecting rod, the connecting rod drives the forceps head to deflect by 0-50 degrees relative to the axial direction of the forceps rod, and the occlusal surface of the forceps head is provided with a mouse tooth-shaped structure; and the control assembly is arranged on the handle, is respectively connected with the forceps rod and the forceps head, and is used for controlling the actions of the forceps rod and the forceps head. According to the forceps, the backhand holding type handles enable an operator to carry out fine operation in a more natural and stable posture, the clamping stability is remarkably enhanced through the mouse tooth-shaped structures arranged on the occlusal surfaces of the forceps heads, and soft or smooth tissue is effectively prevented from slipping off.

The utility model relates to the technical field of intramedullary nail fixation, in particular to a miniature intramedullary nail which comprises a lengthened main nail and a near-end head fixedly arranged at one end of the lengthened main nail, and further comprises a first near-end nail, a second near-end nail, a third near-end nail and a fourth near-end nail, the second near-end nail is inserted into an inclined nail hole in a threaded mode, the inclined nail hole is formed in the end, away from the lengthened main nail, of the near-end head, and the first near-end nail and the second near-end nail are used for fixedly connecting the lengthened main nail to the position between a repaired or reconstructed femoral head and a thighbone in the thighbone reconstruction operation. The proximal end of the lengthened main nail is fixed through the first lag screw or the combination of the first lag screw and the second lag screw or the combination of the first proximal end nail and the second proximal end nail, and can be respectively suitable for femoral neck and distal femur fracture conditions or osteoporosis fracture conditions or femoral head repair and reconstruction conditions; and the applicable fracture condition range of the lengthened main nail is expanded.

This invention relates to the field of orthopedic surgical instruments and discloses a femoral side drilling locator for cruciate ligament double-bundle reconstruction. The locator includes a handheld component with a mounting plate at its end. The mounting plate is equipped with a replaceable positioning component, a limiting component for fixing the positioning component, a fixing component that cooperates with the limiting component, and a locking component for pressing the positioning component. This invention, through the anchoring of the positioning rod with the pre-drilled bone hole and the rigid guidance of the positioning hole, can precisely control the parallelism and interlocking relationship of the two bone holes, avoiding slippage and displacement during drilling. It solves the problems of lack of stable constraint and deviation in the position of the two holes in existing operations. Furthermore, the replaceable positioning component and spring-linked locking design provide support for the preparation of bone holes of different sizes, adapting to different patient anatomical dimensions and graft specifications. It also enables rapid disassembly and immediate fixation of the positioning component, effectively improving the accuracy, convenience, and adaptability of cruciate ligament double-bundle reconstruction surgery.

This utility model discloses a complete set of puncture instruments for pelvic floor reconstruction surgery, including a puncture rod and a handle. The insertion end of the puncture rod is inserted into the connecting end on the handle. By rotating the insertion end or the connecting end, the insertion end is limited within the connecting end. The connecting end is equipped with a limiting component to restrict the movement of the insertion end. This utility model is assembled into a complete set, and the same handle can be adapted to puncture rods with different curvatures and lengths. Different puncture instruments can be selected for people with different puncture points, different weights, and different pelvises. There is no need to change the entire set of instruments during the operation. It is especially suitable for real-time adjustment in complex cases (such as narrow pelvis or obese patients), which not only reduces instrument change time but also saves consumables.

The invention provides an extrusion nail for the orthopedics department and an assembly tool of the extrusion nail, which are applied to the technical field of orthopedic surgical instruments, the extrusion nail adopts an unthreaded structure, consists of a nail body, barbs and an extrusion groove, and can be matched with bone tunnels with different lengths through multiple nail heads and tails; the assembly tool comprises an execution end and an impact handle and can provide linear impact force to achieve linear implantation of the extrusion nail. Rotary screwing-in is replaced with linear propelling, and shearing and torsion damage of the ligament is fundamentally avoided; meanwhile, the device has the advantages of being accurate in implantation, convenient to operate and stable in fixation, the clinical requirements of orthopedic ligament reconstruction operations are met, and the operation safety and the postoperative healing quality are improved.

This invention relates to a rehabilitation chair, and more particularly to a rehabilitation chair for use after orthopedic ACL reconstruction surgery. It primarily provides a rehabilitation chair that relies on hand and machine assistance to stretch the leg, ensuring rehabilitation effectiveness, while also allowing adjustment of the leg fixation components to improve its applicability after orthopedic ACL reconstruction surgery. A rehabilitation chair for use after orthopedic ACL reconstruction surgery includes: a support frame, first connecting blocks, a seat plate, hand assistance mechanisms, and an automatic leg flexion and extension mechanism. The support frame has first connecting blocks on all four sides of its top, with the seat plate connected between the first connecting blocks. Hand assistance mechanisms are located on both sides of the seat plate, and the automatic leg flexion and extension mechanism is connected to the bottom of the seat plate. By incorporating the hand assistance mechanisms and the automatic leg flexion and extension mechanism, and through hand assistance and the rotation of the lower leg support plate, the leg is brought into a straight position. Subsequently, continuous stretching of the Achilles tendon and fascia provides rehabilitation training for the lower leg, achieving basic function.