16 results about "Knee surgery" patented technology

Methods, devices and systems for planning, monitoring, simulating and / or evaluating a knee surgery procedure. Imaging data of the lower limb is acquired. Interpretable 3D models are generated and combined with static and dynamic parameters into an enhanced bone model. Intervention strategy is simulated. Deviations from the intervention strategy are monitored during surgery. Clinical outcome is predicted from machine learning. Methods for calibrating knee surgery imaging data, establishing an alignment reference frame, and simulating an intervention strategy in a knee surgery procedure.

The invention discloses an arthroscope positioning method and system for knee joint minimally invasive surgery. The anatomical mark points are recognized and tracked in real time through the operation video stream collected by the arthroscope camera in combination with the computer vision algorithm. The pre-planned ideal bone tunnel position and the anatomical marker in the real-time image are accurately registered, so that the system can dynamically generate surgical navigation information and visually display the position of the entrance point of the bone tunnel. According to the scheme, dependence of a traditional navigation system on a special surgical instrument and a complex calibration process is avoided, the visual field of the arthroscope familiar with a surgeon can be fully utilized, and more visual and convenient surgical guidance is provided, so that the surgical precision and efficiency are remarkably improved, and the risk of surgical wounds and complications is reduced.

The utility model belongs to the technical field of medical instruments, and relates to a lead aspirator for knee arthroscopic surgery, which comprises a lead tube, an adjusting tube, an adjusting groove, a U-shaped ring and a connecting rod. The moving block is arranged in the adjusting pipe and close to the adjusting groove, part of the moving block is located in the adjusting groove, the moving block is slidably connected with the inner wall of the adjusting pipe and the inner wall of the adjusting groove, the moving block is connected with the other end of the connecting rod, and the moving block drives the U-shaped ring to stretch out of and retract into the lead pipe. And the lead metal block is clamped by the U-shaped ring and the end part of the lead pipe and then is driven to move. According to the utility model, the U-shaped ring can be driven to extend out of and retract into the lead tube through the movement of the moving block, the lead metal block is clamped through the U-shaped ring and the end part of the lead tube, and the lead metal block is driven to move freely through the U-shaped ring, so that the limitation on the lead metal block is avoided, and the lead metal block can be accurately positioned under the condition that fine operation is needed. The position of the lead wire metal block is more convenient to adjust, and normal proceeding of the knee arthroscopic surgery is guaranteed.

This disclosure describes knee surgery systems, knee surgery robots, components associated with the same, and techniques for computer-guided knee-repair and / or knee-reconstruction.

1. Name of the product in this design: Leg-raising pillow. 2. Purpose of this design: To support the leg after knee surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The application belongs to the technical field of medical decision support, and discloses a knee joint postoperative distal deep vein thrombosis prediction system; by acquiring multi-dimensional parameters such as coagulation function, metabolic function, inflammation ratio index and intra-articular injection history, the sodium hyaluronate injection history is converted into an articular lesion severity score, an inflammation-coagulation coupling characteristic vector and a metabolic disturbance correction model are innovatively constructed, and the synergistic effect among multiple systems is captured. A penalty regression model with cross-validation is used for sparse prediction factor screening, redundant variables are screened out through a regularization path shrinkage technology, and key prediction factors are reserved. Finally, an individualized thrombosis risk probability nomogram is constructed, and the prediction accuracy is verified through resampling calibration. The application realizes the multi-system integration of inflammation, coagulation, metabolism and joint degeneration factors, converts the complex statistical model into a clinically friendly tool, and optimizes the postoperative thrombosis prevention and control strategy.

The invention provides a retractor device for knee joint surgery, which belongs to the technical field of medical instruments and comprises a vertical supporting module, a transverse supporting module is mounted at the upper end of the vertical supporting module, a positioning module is mounted between the transverse supporting module and the vertical supporting module, and a retractor module is mounted on one side, farther from the vertical supporting module, of the transverse supporting module; the vertical supporting module comprises a bearing table, an assembling column is fixedly connected to the center of the top end of the bearing table, a U-shaped opening formed in a mirror image mode is reserved in the side wall of the bottom end of the bearing table, a restraining unit used for restraining and fastening the rotating strip is arranged in the center of the top end of the bearing table, the restraining unit comprises a cylinder B, and the bottom end of the cylinder B is rotationally connected with the bearing table. The problems that in the process of knee joint surgery at present, most of the drag hooks are held by medical staff in a handheld mode, the possibility that the drag hooks get loose due to hand discomfort or fatigue caused by long-time holding of the drag hooks, certain risks exist, and the progress of the surgery is slowed down are solved.

The utility model discloses a kind of intraoperative adjustable knee joint surgery guiding device, it is related to medical instrument technical field, and it include: tibia guide plate, femur front guide plate, femur distal guide plate, four-in-one rotary adjusting plate, metal handle, four-in-one osteotomy plate, wherein four-in-one osteotomy plate is fixed on femur by screw thread nail hole, and bone cutting is carried out to femur by four-in-one osteotomy slot on four-in-one osteotomy plate of swing saw;The guiding device can realize femur valgus angle intraoperative real-time adjustment, realize femur external rotation angle intraoperative real-time adjustment, and more realize flexion-extension gap balance based on ligament judgment basis of operator.

The invention relates to a suture instrument for knee joint surgery, in particular to a suture instrument for knee joint surgery and an assembling method thereof.The suture instrument comprises a handle and a hollow suture hook, one end of the suture hook is movably connected with the front end of the handle, the other end of the suture hook can penetrate into a knee joint, and an elastic steel wire is arranged in an inner cavity of the suture hook. A suture line can penetrate into the inner cavity of the suture line hook from the handle; after the other end of the suture hook is punctured into a knee joint, the suture line is pushed from the rear end of the handle to extend out of the inner cavity of the suture hook, and then the elastic steel wire is pushed to abut against the extending part of the suture line until the suture hook exits, so that the suture line is effectively prevented from being brought out, the operation efficiency is improved, and the operation difficulty is reduced. In addition, one-time puncture thread passing success can be ensured, and the risk of tissue damage is greatly reduced.

A unicondylar balancer (10) for knee surgery and a method of knee surgery. The balancer includes a first body portion (6) including a first jaw (2). The balancer also includes a second body portion (8) slideably attached to the first body portion, the second body portion comprising second jaw (4). The balancer further includes an adjustment mechanism selectively to distance the first jaw from the second jaw. The adjustment mechanism includes a threaded collar (20) captured in a slot (26) in the second body portion, and a threaded rod (30). The first body portion is coupled to the threaded rod via a biasing element (50), which biases the first jaw away from the second jaw. The balancer further includes a manually operable locking mechanism (140), to lock the first body portion with respect to the second body portion.

The application particularly relates to a knee brace, a detection system and a detection method for post-knee surgery. The knee brace comprises a first binding assembly, a second binding assembly and a detection assembly. The first binding assembly is provided with a first attaching plate. The second binding assembly is provided with a second attaching plate, and the second attaching plate is hinged to the first attaching plate. The detection assembly comprises a first detection piece and a second detection piece. The first detection piece is arranged at the hinge between the first attaching plate and the second attaching plate, and is attached to the two sides of the human knee joint. The first detection piece is used for detecting the muscle torque of the human knee joint when the human knee joint is flexed at a fixed angle. The second detection piece is used for detecting the included angle between the thigh and the lower leg. The detection system for post-knee surgery can effectively monitor the postoperative recovery of the patient by arranging the detection assembly to detect the muscle torque of the knee joint of the patient when the knee joint is flexed at a fixed angle, and the included angle between the thigh and the lower leg, so as to timely adjust the rehabilitation plan.

The application discloses a femoral head space positioning method in knee joint surgery and relates to the technical field of joint replacement. The femoral head space positioning method in knee joint surgery has the advantages that the movement of the hip joint and the femoral head is eliminated from the interference on the real circle center coordinate, and the femoral head and femoral force line positioning is accurate.

The invention discloses a knee joint postoperative exercise prescription generation system, belongs to the field of medical information health recovery, solves the problem that a personalized exercise prescription of a patient cannot be generated, and comprises a surgical data acquisition module for acquiring first surgical data of a knee joint surgery of the patient through an associated medical data system; the exercise prescription generation module is used for generating a personalized exercise prescription corresponding to the patient according to the first operation data; the exercise data acquisition module is used for acquiring exercise data when the patient executes the personalized exercise prescription through exercise data acquisition equipment worn by the patient, and performing analysis according to the exercise data to obtain physical sign data corresponding to the patient; and the exercise prescription updating module is used for updating the personalized exercise prescription according to the physical sign data. The individual condition of the patient is reflected through the first operation data, the personalized exercise prescription corresponding to the patient is generated, experience of doctors is not relied on any more, and the doctors can be prevented from neglecting some indexes due to subjective deviation.

This disclosure relates to systems and methods for managing patients of knee surgeries. A pre-operative patient questionnaire user interface is associated with a future knee operation of the patient. Patient input data is indicative of answers of a patient in relation to the pre-operative patient questionnaire. A processor of a computer system evaluates a statistical model to determine a predicted satisfaction value indicative of satisfaction of the patient with the future knee operation. The statistical model comprises nodes stored on data memory representing the patient input data and the predicted satisfaction value, and edges stored on data memory between the nodes representing conditional dependencies between the patient input data and the predicted satisfaction value. The processor then generates an electronic document comprising a surgeon report associated with the future knee operation to indicate to the surgeon the predicted satisfaction value.

The invention relates to the field of medical instruments, in particular to a knee joint surgery-based pressure-adjustable distraction device which comprises a sleeve, a screw is rotatably connected in the sleeve, sliding holes are symmetrically formed in the outer ring of the sleeve in the radial direction, the sliding holes penetrate into the sleeve, a sliding block is slidably connected in each sliding hole, the sliding blocks are in threaded connection with the screw, and distraction plates are connected to the sliding blocks. The end part of the expanding and supporting plate is used for expanding and supporting knee joint tissues; through the threaded transmission fit between the screw and the sliding block, an operator can accurately control the displacement of the expanding and supporting plate by rotating the adjusting disc, stepless and quantitative adjustment of the knee joint soft tissue expanding force is achieved, compared with the mode that a traditional retractor depends on hand feeling or is limited by gears of a fixed expander, meanwhile, the screw is matched with a sliding block thread pair, and the self-locking characteristic is achieved; when the adjusting disc stops rotating, the position of the expanding and supporting plate is mechanically locked, the stable expanding state can be maintained without continuously applying holding force by an operator or an assistant, and the operation process and human resource configuration are optimized.

The invention relates to an innovation in the manner of surgically exposing the knee during total or partial knee arthroplasty. Currently, and as has always been the case, the conventional surgical approach for the knee used the anterior route but also the medial route, where it was necessary to sever the whole tissue attachment from the inner bone margin thereof, said tissue attachment comprising the capsule (envelope), the medial patellofemoral ligament and the tendon of the vastus medialis oblique (muscle) of the quadriceps. The present invention relates in particular to operation equipment intended to facilitate and / or implement this new and innovative surgical approach.