11 results about "Micro manipulator" patented technology

A micromanipulator (1) for manipulating a laser beam (L in , L scan ) of a laser surgery device, comprising a scanner (10) for generating at least one scan figure (60) and at least one control element for controlling the scanner (10), wherein the control element comprises a rotating element (51), wherein a rotation (D d) of the rotating element (51) causes a rotation (D s) of the scan figure (60), which depends on the size and / or speed of the rotation (D d) of the rotating element (51), wherein the rotating element (51) can rotate freely without limiting the angle of rotation and the scan figure (60) follows this free rotation without restrictions, and a laser surgery device with said micromanipulator (1).

The invention designs a face image automatic registration system based on a five-degree-of-freedom movable camera group. The face image automatic registration system comprises the camera group, a micro manipulator, an image acquisition module, a face positioning recognition module and a registration module. The system relates to the technical field of computer vision and artificial intelligence. The method can be used for the skin measuring instrument, the angle and the position of the camera can be automatically adjusted according to the placing position of the face of a user so as to achieve the best front face and side face image collection quality, and subsequent skin analysis and calculation precision can be improved.

The invention presents and demonstrates a novel light coupling system and design method for highly efficient coupling of Nanowires or Nanowires with embedded Quantum Dots (NWQDs) to optical waveguides, and is based on an optical arrangement employing an mesoscale optical dielectric microelement, like a dielectric microsphere (or alternatively half-sphere, cylinder, half-cylinder of mesoscale dimensions) placed between the nanowire and the optical waveguide, suitably optimized in terms of: 1) Size (diameter) of the microsphere, 2) Refractive index of microsphere, 3) Distance between the nanowire and the microsphere, 4) Distance between microsphere and waveguide. Upon suitable design of the optical arrangement, the photonic nanojet emitted by the microsphere illuminated by the nanowire, excites efficiently the guided eigenmode(s) of the input waveguide, thus launching optimally light with high coupling efficiency to lossless guided modes. The method is tolerant and robust in terms of displacements, misalignments, and imperfections given also the current state of the art tools, like nano / micro manipulators for accurate handling of such elements (nanowires, microspheres). Application of the method has been successfully demonstrated in the most demanding case of directly laser written waveguides of low refractive index contrast in silica and silica-on-silicon platform. The invention solves a very challenging problem and the solution is expected to have a high impact in Quantum technology due to the interest of developing optical quantum computers based on highly customised and scalable quantum photonic integrated circuits.

To control a rotation operation of an end effector smoothly and reliably.SOLUTION: A parallel link mechanism causes one end of a link 13 to make a linear movement by a plurality of linear actuators 14 supported by a base for each link, and moves an end effector 12 connected to the other end of each ink 13. The parallel link mechanism includes a rotation support part 17 provided between the end effector 12 and the parallel link mechanism and supporting the end effector 12 rotatably around a predetermined rotation axis, and a hydraulic drive mechanism for generating rotation force around the rotation axis for the end effector 12. The movement to rotate the end effector 12 is generated by giving liquid pressure variation of working fluid to the hydraulic drive mechanism from outside.SELECTED DRAWING: Figure 5

Micromanipulator (1) for manipulating a laser beam (Lin, Lscan) of a laser surgery device, comprising a scanner (10) for generating at least one scan figure (60) and at least one control element for controlling the scanner (10), wherein the control element comprises a rotary element (51), wherein a rotation (Dd) of the rotary element (51) causes a rotation (Ds) of the scan figure (60), which depends on the size and / or speed of the rotation (Dd) of the rotary element (51), wherein the rotary element (51) is freely rotatable without limiting the angle of rotation and the scan figure (60) follows this free rotation without restrictions, and laser surgery device with such a micromanipulator (1).

The present application discloses a laparoscopic master-slave robot calibration device and method. The method includes: obtaining the initial pose of the micro manipulator in the retracted state and the central positions of a plurality of pre-planned surgical targets, determining the target area reachable by the micro manipulator in the motion plane, and controlling the manipulator to move to a predetermined position in the target area; based on the target area, adopting a spatial stratification strategy to generate each spatial stratification structure and the surgical targets it contains; based on the pre-planned execution order of the surgical targets, sequentially traversing the position information of the surgical targets and the spatial stratification structure to generate a target movement strategy for the current micro manipulator to move to the surgical target. The target movement strategy includes a target movement path and target movement parameters, and the target movement parameters are the pose sequences corresponding to the target movement path; controlling the micro manipulator to move to the surgical target for alignment based on the target movement strategy. Thereby, the accuracy and efficiency of laparoscopic surgery calibration are improved.

The invention relates to the technical field of hydraulic fracturing, and discloses a multi-station remote pressure relief device for petroleum fracturing operation and a control method.The multi-station remote pressure relief device for the petroleum fracturing operation comprises a multi-channel valve body, a pressure relief valve, a pressure relief valve and a pressure relief valve body, the plurality of feed ports, the discharge port, the pressure relief hole and the mounting hole are formed in the multi-channel valve body; the one-way conducting mechanism is detachably connected to the mounting hole of the multi-channel valve body; the pressure relief mechanism comprises a sliding type plugging assembly and a linear moving assembly; the adjusting mechanism is used for driving the linear moving assembly to move in the central axis direction of the pressure relief hole; the micro manipulator is matched with the lever type rotating adjusting mechanism, when it is detected that the pressure intensity exceeds a threshold value, the pressure relief mechanism can be remotely adjusted and subjected to pressure relief, the pressure relief process is stable, and the stability of the whole valve body can be effectively guaranteed.

The invention discloses a method for improving rat cerebral apoplexy stable modeling through an improved suture insertion operation, which comprises the following steps of: A, performing preoperative preparation, anesthetizing a rat, fixing the rat on an operation console, connecting a multi-channel physiological sensor array of a physiological parameter real-time monitoring and regulating module, the closed-loop feedback control unit is started to pre-regulate and control the body temperature, the blood pressure and the oxyhemoglobin saturation of the rat; and B, the neck blood vessel of the rat is exposed, and the standardized suture assembly is aseptically connected to a suture micro manipulator and a suture clamp of a feeding mechanism. The invention relates to the technical field of biomedicine. According to the method for improving rat cerebral apoplexy stable modeling through the improved suture insertion operation, real-time visual guidance is provided through a high-frequency miniature ultrasonic imaging module, and a blind insertion operation mode of a traditional suture insertion operation is thoroughly changed by combining precise control of a suture miniature manipulator and a feeding mechanism; this enables an operator to accurately determine the position of the suture tip in the blood vessel.

The application discloses a kind of multi-micro manipulator device parallel collaborative work scheduling and path planning method and system, comprising: according to system state space model, the task information of the task to be processed is obtained;According to the spatial distribution characteristics of target task in task information and task demand, the target task is grouped, and a plurality of task subgroups are obtained;Several task subgroups are assigned to corresponding micro manipulator device, and initial task allocation scheme is generated;In the process that micro manipulator device executes task, its execution state is monitored in real time, and according to the deviation of actual execution progress and expected planning, the remaining tasks are dynamically rescheduled, and updated task scheduling sequence is generated;According to the target position of each micro manipulator device, kinematic constraint and collision constraint, the optimal path without collision is planned for each micro manipulator device, and position calibration is carried out in the process of path execution.The method proposed in the application significantly improves the efficiency of multi-device parallel collaborative work.

The invention relates to a positioning method of a micro mechanical arm and electronic equipment. The method comprises the steps that when the micro mechanical arm is positioned, the center position of a visual mark of a target object coincides with the center position of a view, and the target object is an alignment object when the micro mechanical arm is positioned; the position relation between the visual mark of the micro mechanical arm and the visual mark of the target object is displayed in the view; and the visual mark of the micro mechanical arm is moved to the center position of the visual mark of the target object based on the position relation, and the micro mechanical arm is positioned. The technical problem that in the using process of a micro mechanical arm, operation is difficult, and the service time is prolonged is solved.

The invention provides a macro-micro mechanical arm time-sharing task planning method which comprises the following steps: constructing macro-micro mechanical arm task characterization according to constraints among operation steps in an on-orbit task and macro-micro mechanical arm actions; constructing a constraint equation of the macro-micro mechanical arm according to the connection relation and motion characteristics of the space macro-micro mechanical arm; constructing a macro mechanical action similarity index according to the time-sharing motion mode of the macro-micro mechanical arm; according to the connection relation and the working mode of the macro mechanical arm and the micro mechanical arm, a macro mechanical action and working point matching index is constructed; and designing a macro-micro mechanical arm action generation method by considering a macro-micro mechanical arm task representation model, a macro-micro mechanical arm constraint equation, a macro mechanical action and operation point matching index and a macro-micro mechanical action similarity index. According to the technical scheme provided by the embodiment of the invention, a feasible macro-micro mechanical arm action sequence with few execution steps and short operation time is generated, so that the macro-micro mechanical arm can meet the characteristics of large span, complex process and the like of an on-orbit task in the future.