Abstract: A 2D image-guided surgical robot system for distal locking operations includes surgical image acquisition equipment, a robot arm, a robot end effector attached to the robot arm, and a remote operation workstation. To perform a distal locking operation, the position of the image acquisition device is adjusted to obtain a round outline of a lockhole in the image. A distortion correction is performed. The position of the target lockhole is assigned by a user through the GUI of the remote operation workstation, and the remote operation workstation calculates a robot motion quantity using image feedback control law and moves the robot accordingly. The “image-and-move” procedure is repeated several times until the drill guide is accurately aligned to the lockhole, then the distal locking operation is accomplished by first drilling a guide hole using a guide wire through the drill guide, and then screwing a locking screw through the guide hole.

Abstract: A system for detecting filament and needle breakage, including: an image acquisition module, an image processing module and a host computer detection module. The image acquisition module includes a light source, a camera and a lens. The image processing module includes a preprocessing submodule and a detection model. The host computer detection module includes a shutdown control-data interaction submodule of a warp knitting machine, a sensor control board, and a system operation interface. The image acquisition module captures a blanket knitting image at a knitting mechanism of the warp knitting machine. The image processing module pre-processes the blanket knitting image and detects filament and needle breakage. The host computer detection module controls a textile device according to detection results to generate an alarming information. A detection method implemented by the system is further provided.

Abstract: The present disclosure provides a multi-modal imaging device based on Raman spectroscopy and optical coherence tomography. The multi-modal imaging device based on Raman spectroscopy and optical coherence tomography includes: a Raman spectroscopic analysis module configured to obtain Raman spectroscopic information of a target object on a first sampling position by using excitation light; an optical coherence tomography module configured to obtain at least one two-dimensional tissue structure image of the target object on a second sampling position by using imaging detection light; and a co-localization module configured to control the first sampling position of the excitation light in the Raman spectroscopic analysis module and/or the second sampling position in the optical coherence tomography module according to a determined concerned area of the target object, so that the first sampling position and the second sampling position are spatially co-localized in the concerned area.

Abstract: A method for preparing a poly(thioctic acid)-copper coating (poly(TA-Cu)) on a surface of a cardiovascular stent material includes: grinding a cardiovascular stent material with sandpaper until the surface of the cardiovascular stent material is flat and smooth, rinsing the cardiovascular stent material with deionized water and anhydrous ethanol in sequence, and drying the cardiovascular stent material to obtain a pre-treated cardiovascular stent material; dissolving thioctic acid in an alcoholic solvent, adding anhydrous copper chloride to a mixed solution of thioctic acid and the alcoholic solvent, stirring the mixed solution, to yield a precursor solution; treating the pre-treated cardiovascular stent material with the precursor solution, and drying, thus forming a poly(thioctic acid)-copper coating on the surface of the pre-treated cardiovascular stent material. The concentration of thioctic acid in the alcoholic solvent is 0.1-0.

Abstract: A target tracking method and system for use with a surgical robot is disclosed. The method includes: acquiring a visible light image and a depth image of a marker attached on a patient's body surface, where the marker is provided with a black and white checkerboard pattern, and a two-dimensional code is arranged inside squares of the checkerboard; performing two-dimensional code detection on the visible light image to obtain the checkerboard corners' 2D coordinates and the IDs of the two-dimensional codes on the marker; and obtaining 3D coordinates of checkerboard corners in the marker by using the depth image, 2D code corners' coordinates and 2D code ID. According to the 3D coordinates of the checkerboard corner, the position information of the tracked target in the 3D space is obtained.

Abstract: A surface tracking-based surgical robot system for drilling operations includes surface scanning equipment, a robot arm, and a workstation. To perform a drilling operation, surface information for the target surgery area and the surgical tool held by the robot arm is simultaneously collected with the same surface scanning equipment. A preoperative 3D image of a surgical area and a CAD model of the surgical tool are registered to the collected surface information, through which the relative position between a surgical path and the surgical tool is obtained. Using this relative position, the robot arm aligns to the predefined surgical path using a feedback control method running on a workstation. The drilling operation is then autonomously executed by the robot arm or manually performed under the guidance of the surgical tool held by the robot arm.

Abstract: A surface tracking-based surgical robot system for drilling operations includes surface scanning equipment, a robot arm, and a workstation. To perform a drilling operation, surface information for the target surgery area and the surgical tool held by the robot arm is simultaneously collected with the same surface scanning equipment. A preoperative 3D image of a surgical area and a CAD model of the surgical tool are registered to the collected surface information, through which the relative position between a surgical path and the surgical tool is obtained. Using this relative position, the robot arm aligns to the predefined surgical path using a feedback control method running on a workstation. The drilling operation is then autonomously executed by the robot arm or manually performed under the guidance of the surgical tool held by the robot arm.

Abstract: Embodiments of the present disclosure provide a method for driving a display panel, a driving device for driving a display panel and a display device. The display panel includes a first display region and a second display region each including first color sub-pixel units. The method includes obtaining a respective target grayscale of each of the first color sub-pixel units, obtaining a respective first gamma voltage of each of the first color sub-pixel units in the first display region based on the respective target grayscale, and providing the respective first gamma voltage to each of the first color sub-pixel units in the first display region, and obtaining a respective second gamma voltage of the first color sub-pixel unit in the second display region based on the respective target grayscale, and providing the respective second gamma voltage to each of the first color sub-pixel units in the second display region.

Abstract: A 2D image-guided surgical robot system for distal locking operations includes surgical image acquisition equipment, a robot arm, a robot end effector attached to the robot arm, and a remote operation workstation. To perform a distal locking operation, the position of the image acquisition device is adjusted to obtain a round outline of a lockhole in the image. A distortion correction is performed. The position of the target lockhole is assigned by a user through the GUI of the remote operation workstation, and the remote operation workstation calculates a robot motion quantity using image feedback control law and moves the robot accordingly. The “image-and-move” procedure is repeated several times until the drill guide is accurately aligned to the lockhole, then the distal locking operation is accomplished by first drilling a guide hole using a guide wire through the drill guide, and then screwing a locking screw through the guide hole.

Abstract: A 2D image-guided surgical robot system for drilling operations includes surgical image acquisition equipment, robot positioning and drilling equipment, and a remote operation workstation. To perform a drilling operation, images of the surgery area are acquired with the image acquisition equipment and are registered to the robot, and a distortion correction is performed. A drilling path is assigned by a doctor through the GUI of the remote operation workstation, and the remote operation workstation calculates the robot motion quantity using a position-based method and moves the robot accordingly. Based on the relative position of the surgical tool and drilling path in the images, the remote operation workstation calculates a motion quantity using image feedback and controls the robot to make further fine adjustments to the drilling path. The robot then performs the drilling operation with an electric drill or holds a drill guide for doctors to perform the drilling manually.

Abstract: Embodiments of the present disclosure provide a method for driving a display panel, a driving device for driving a display panel and a display device. The display panel includes a first display region and a second display region each including first color sub-pixel units. The method includes obtaining a respective target grayscale of each of the first color sub-pixel units, obtaining a respective first gamma voltage of each of the first color sub-pixel units in the first display region based on the respective target grayscale, and providing the respective first gamma voltage to each of the first color sub-pixel units in the first display region, and obtaining a respective second gamma voltage of the first color sub-pixel unit in the second display region based on the respective target grayscale, and providing the respective second gamma voltage to each of the first color sub-pixel units in the second display region.

Abstract: A remotely operated orthopedic surgical robot system for performing a fracture reduction operation using a visual-servo control method is provided. The system includes the surgical image acquisition equipment, the fracture reduction robot and the remote operation workstation. The fracture reduction robot has a plurality of types. The remote operation workstation includes a graphical user interface for doctors to examine the fracture reduction path planning result made by an artificial intelligence algorithm and to manually perform the path planning. The remote operation workstation calculates the robot control quantity using the visual servo control method according to the path planning result and sends it to the robot.

Abstract: A method including: employing pure magnesium or a magnesium alloy as a substrate material, and sanding and cleaning the substrate material; preparing an electrolyte including 0.8-8 mmol/L of Zn2+, 30-50 mmol/L of Ca+, 15-35 mmol/L of H2PO4?, 0-0.5 mol/L of NaNO3, and 0-0.05 mmol/L of a magnesium ion complexing agent; employing the substrate material as a cathode, a graphite flake as an anode, heating the electrolyte to a temperature of between 60 and 90° C., and synchronously immersing the cathode and the anode into the electrolyte; and implementing an electrochemical deposition method in the electrolyte for between 20 and 60 min.

Abstract: A remotely operated orthopedic surgical robot system for performing a fracture reduction operation using a visual-servo control method is provided. The system includes the surgical image acquisition equipment, the fracture reduction robot and the remote operation workstation. The fracture reduction robot has a plurality of types. The remote operation workstation includes a graphical user interface for doctors to examine the fracture reduction path planning result made by an artificial intelligence algorithm and to manually perform the path planning The remote operation workstation calculates the robot control quantity using the visual servo control method according to the path planning result and sends it to the robot.

Abstract: A method including: employing pure magnesium or a magnesium alloy as a substrate material, and sanding and cleaning the substrate material; preparing an electrolyte including 0.8-8 mmol/L of Zn2+, 30-50 mmol/L of Ca°, 15-35 mmol/L of H2PO4?, 0-0.5 mol/L of NaNO3, and 0-0.05 mmol/L of a magnesium ion complexing agent; employing the substrate material as a cathode, a graphite flake as an anode, heating the electrolyte to a temperature of between 60 and 90° C., and synchronously immersing the cathode and the anode into the electrolyte; and implementing an electrochemical deposition method in the electrolyte for between 20 and 60 min.