Abstract: The present disclosure provides an image registration method and system for navigation in femoral neck fracture surgery, an electronic device, and a computer-readable storage medium. The method includes: obtaining femoral image data by a computed tomography (CT) imaging device before surgery and obtaining a surgical path planned by a doctor to generate a three-dimensional femoral image with the surgical path; obtaining, during the surgery, X-ray images photographed by an X-ray machine at different angles, and extracting feature points on each of the X-ray images; setting digitally reconstructured radiograph (DRR) virtual scene projection parameters based on a structure of the X-ray machine, projecting the three-dimensional femoral image with the surgical path to generate a plurality of DRR images, and extracting feature points on each of the DRR images; and automatically registering the DRR image and the X-ray image, and outputting a surgical path after registration.

Abstract: The invention provides a reduction and fixation device for fracture correction, and relates to the technical field of orthopedic medical devices. The reduction and fixation device for fracture correction comprises: an aiming frame body including a fixation plate, a first rectangular frame, a support plate and a second rectangular frame, wherein two first sliding frames are slidingly arranged in the first rectangular frame, a first screw sleeve is arranged in the first sliding frame, upper and lower sides of the first screw sleeve are rotationally connected to an inner wall of the first sliding frame through a first rotating shaft, a second sliding frame is slidingly arranged in the second rectangular frame, a second screw sleeve is arranged in the second sliding frame, and front and rear sides of the second screw sleeve are rotationally connected to an inner wall of the second sliding frame through a second rotating shaft.

Abstract: Disclosed is an in-vivo micro-robot for nerve stretching, comprising a channel, and a movable part and a fixed part located at the channel. The movable part is disposed to be movable along the channel, the movable part sleeves the fixed part and is used for driving the fixed part to move along the channel, and the fixed part is connected to a nerve to be stretched. The in-vivo micro-robot is embedded into a patient's body through surgery, so that the extension of the nerve is accelerated and is regular and quantitative, thereby effectively solving the problems of small probability of nerve self-repair and long recovery period in traditional nerve bridging surgery.

Abstract: Provided are a grasping instrument, tracking and navigation system, method and display apparatus for bone structure reduction, and a storage medium. The grasping instrument includes a straight strip-shaped support rod, and a grasping end and a signal end that are arranged at two ends of the support rod; a plurality of grating sensors extending in an axial direction are arranged on the support rod; the signal end is provided with an instrument pose feedback sensor for feeding back pose information of the grasping instrument; and the plurality of grating sensors are configured to detect deformation data of the support rod under an action of resistance at the grasping end. The tracking and navigation system includes an electromagnetic signal transceiving apparatus, the grasping instrument, an ultrasonic detection apparatus, and a navigation display apparatus.

Abstract: Disclosed is an in-vivo micro-robot for nerve stretching, comprising a channel, and a movable part and a fixed part located at the channel. The movable part is disposed to be movable along the channel, the movable part sleeves the fixed part and is used for driving the fixed part to move along the channel, and the fixed part is connected to a nerve to be stretched. The in-vivo micro-robot is embedded into a patient's body through surgery, so that the extension of the nerve is accelerated and is regular and quantitative, thereby effectively solving the problems of small probability of nerve self-repair and long recovery period in traditional nerve bridging surgery.