12 results about "High tibial osteotomy" patented technology

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 present invention provides a deep learning-based automated planning method and system for simulated knee joint surgery. The method comprises: acquiring a medical image of the knee joint and converting pixels in the image into actual lengths; selecting key area images of the knee joint image, performing target detection on the key area images, and extracting key points; using the coordinates of the extracted key points, annotating the key points and force lines, calculating the correction angle, and then calculating the rotation angle, simulating bone cutting and rotation to obtain a surgical planning image, and automatically planning two types of surgeries: high tibial osteotomy and distal femoral osteotomy. The present invention uses deep learning technology to predict the locations of key points and calculate the angles of force lines in lower limb X-rays. The surgeon can select from eight surgical options based on the displayed angles. The system automatically plans and simulates the options, eliminating the need for manual operation and significantly improving work efficiency.

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.

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.

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.

The present disclosure provides an apparatus for tibial high osteotomy surgery and a control method thereof. The mechanical arm end of the apparatus is provided with a surgical instrument, and the control method comprises: constraining an initial action force by using a virtual clamp to obtain a target action force; determining a mobility parameter of a mobility control model based on the mobility control model, according to the current state of the surgical instrument, the target action force, and the speed of the surgical instrument at the current time; and determining the speed of the surgical instrument at the next time based on the mobility parameter and the target action force, so as to control the movement of the surgical instrument based on the speed at the next time.

The utility model belongs to the technical field of medical auxiliary tools, and particularly relates to an auxiliary guide plate for high tibial osteotomy. The guide plate comprises a guide plate body, the first cutting groove is transversely formed in the guide plate body; the second cutting groove is vertically formed in the edge of the guide plate body; the at least two first screw holes are formed in the corresponding guide plate body above the first cutting groove and are distributed on the two sides of the guide plate body; the at least one second screw hole is formed in the corresponding guide plate body below the first cutting groove; the guide plate body is of a fan-shaped structure. The guide plate body is of a fan-shaped structure, the occupied space is small, on the premise that the function of the auxiliary guide plate is guaranteed, the size of the auxiliary guide plate is reduced as much as possible, stripping of the medial collateral ligament of the knee joint of a patient in an operation is reduced, and the problems that in the prior art, a quadrilateral guide plate is large in size and inconvenient to operate are solved. And more soft tissues and ligament attachment points on the inner side of the knee joint of the patient are stripped.

The application relates to the technical field of medical devices and discloses a high-position tibial osteotomy osteotomy surface planning method and system and a storage medium. The method first reconstructs a three-dimensional model based on medical images, constructs a local anatomical coordinate system and an initial osteotomy plane; then constructs an osteotomy parameter geometric constraint model, processes parameter interaction by using a linear constraint equation, realizes linkage update of an osteotomy position, depth and lateral hinge retention amount and safety threshold boundary control; further establishes a virtual distraction model, performs a lower limb mechanical force line path pre-performance, and performs instrument interference detection based on a signed distance field; and finally generates a navigation protocol. The application effectively avoids the risk of lateral hinge fracture through a parameter linkage mechanism, realizes accurate prediction of force line correction effect and active avoidance of surgical risks by combining virtual kinematics simulation, and improves the accuracy and safety of preoperative planning.

Procedure for aligning the tibia relative to the femur in a high tibial osteotomy (HTO), characterized by the following procedural steps: - Determine the position of the mechanical tibial axis in space; - Providing an ultrasound image of an ultrasound probe on a display unit, wherein a characteristic point located at and preferably on the mechanical femoral axis is detected with the ultrasound plane of the ultrasound probe and displayed in the ultrasound image, wherein a navigated ultrasound probe is used as the ultrasound probe, to which a surgical marking device tracked by a navigation device is fixed; - Determining an intersection point of the mechanical tibial axis with the ultrasound plane and displaying a corresponding intersection point marker in the ultrasound image; - Tracking the change in position of the mechanical tibial axis in space depending on the osteotomy; - Determining the changed intersection point of the mechanical tibial axis with the ultrasound plane and displaying the changed intersection point marker in the ultrasound image; - Determine that the intersection marker and the position of the characteristic point in the ultrasound image are the same or essentially the same.

The guiding device comprises an osteotomy guide plate, an osteotomy groove and a kirschner wire positioning groove are formed in the osteotomy guide plate, two arc-shaped grooves are formed in the middle of the kirschner wire positioning groove and are in threaded connection with a positioning sleeve, the end of the positioning sleeve is conical, through grooves are formed in the two sides of the osteotomy guide plate respectively, and the two arc-shaped grooves are in threaded connection with the positioning sleeve. Therefore, the track of the saw blade can be limited through the osteotomy groove, too deep osteotomy or direction deviation is effectively avoided, meanwhile, the kirschner wire positioning groove is matched with the positioning sleeve to achieve main positioning, kirschner wires can be additionally implanted into the two sides to form multi-point fixing, and the osteotomy guide plate is prevented from rotating and deviating, and the phenomenon that due to individual differences, for example, the front-back diameter of the tibia is large is avoided. The position of the osteotomy guide plate can be adjusted in a translation and sliding mode along the auxiliary kirschner wires on the two sides, osteotomy of the foremost portion and the rear portion of the tibia can be conveniently completed, in addition, the popliteal space baffle assembly can prevent the saw blade from extending towards the popliteal space, damage to blood vessels and nerves is avoided, and operation risks are reduced.

The utility model relates to the technical field of medical instruments, in particular to an internal fixation instrument for high tibia osteotomy, which comprises a fusion body and a fixation body which are fixedly connected, the fusion body is implanted into an osteotomy notch, the fixation body is arranged outside the osteotomy notch in a fitting manner, and lengthening plates are symmetrically arranged in the width direction of the fixation body. The lengthening plate is fixedly connected with the tibia through the screw set, the screw set is divided into a first screw unit and a second screw unit, the first screw unit is arranged above an upper incisura of an osteotomy notch, the second screw unit is arranged below a lower incisura of the osteotomy notch, and the first screw unit and the second screw unit each comprise a positioning part and a locking part. The positioning part is arranged on the side close to the osteotomy notch. According to the internal fixation instrument for high tibia osteotomy, the fusion body and the fixing body are combined, and the lengthening plate and the screw set are arranged on the fixing body, so that an osteotomy notch is fixed, the stripping range of soft tissue can be reduced, trauma is small, and the operation process can be simplified.

The application discloses a preparation method of an osteotomy gap filling material for tibial high osteotomy. The method comprises the following steps: (1) adding 30-50 parts of biological bone cement powder, 30-50 parts of functional aggregate particles, 5-20 parts of starch powder and 0-2 parts of water-soluble phosphate into a container, and then oscillating and mixing uniformly after being closed; (2) adding 40-80 parts of polyethylene glycol into the container in step (1) after being melted, and then cooling to room temperature after heating and stirring to form a mixture; and rubbing for 1-2 min to form a dough, so that the osteotomy gap filling material for tibial high osteotomy is obtained. The material obtained by the method is anhydrous plastic solid before blood absorption and solidification, can be rubbed into a required shape at will, and can be fully filled into a bone defect to block the osteotomy surface and stop bleeding; the material composition has good osteogenesis promotion capacity and gradient degradation, and finally forms bone healing at the osteotomy gap.