49 results about "Micro manipulator" patented technology

An apparatus and method for safely cannulating a blood vessels, including but not limited retinal blood vessels, is described. In one embodiment, the apparatus can consist of a micropipette/microcannula, micromanipulator and positioner mounted to a base, which is attached to a wrist rest commonly used in eye surgery. The micropipette/microcannula is connected to tubing such that a medication may be injected through the micropipette/microcannula into the blood vessel or conversely, a small quantity of material may be removed from a blood vessel. Alternatively, a catheter, wire or stent may be placed through the micropipette/microcannula to treat or diagnose an area remote from the insertion site. The ability to cannulate a retinal blood vessel should be efficacious in the treatment of vein and artery occlusion, ocular tumors and other retinal, vascular and optic nerve disorders that would benefit from diagnosis and/or treatment. In another embodiment, a self-sealing needle is provided which allows the perforation of a blood vessel or other structure and the minimization of hemorrhaging when the needle is withdrawn from the blood vessel/structure. Another embodiment discloses an ocular implant needle.

Sample preparation apparatus and method includes a wafer stage platform with an optical microscope and integrated pattern recognition to automatically address specific locations on the wafer sample of interest. A laser attaches to the optical microscope to mill a set pattern around the area of interest. A precision micro-manipulator engages the sample support structure, extracts the structure, and places the structure in a TEM holder or holder tip. The holder or holder tip can then be placed inside a FIB for final thinning, followed by direct transfer into the TEM.

The invention discloses a controllable flexible transfer method of two-dimensional materials. The controllable flexible transfer method includes the steps: adopting a mechanical striping method or other methods to obtain a target two-dimensional material to be transferred; spraying polypropylene carbonate glue on the surface of the two-dimensional material; standing and heating to solidify the polypropylene carbonate glue to enable the two-dimensional material to be adhered below a formed polypropylene carbonate thin film; mounting the thin film on a micro manipulator carrying a polydimethylsiloxane buffering layer, and accurately aligning the thin film to a target position of a target substrate with the help of an optical microscope; heating to melt the polypropylene carbonate thin film, and using organic solvent to remove residual polypropylene carbonate. By the controllable flexible transfer method, accurate and controllable transfer of the two-dimensional material is realized. The method is simple in process, high in efficiency, wide in application range and high in expandability and has wide using prospect in the fields of microelectronics, biological detection and batteries.

The invention aims to provide a manual multi-degree of freedom micro-manipulator for a surgical operation. The manual multi-degree of freedom micro-manipulator for the surgical operation comprises a fingertip clamping mechanism, a driving mechanism and a rotating joint, wherein the driving mechanism is connected with the fingertip clamping mechanism and controls the clamping and pitching of the fingertip clamping mechanism, and the rotating joint is connected with the fingertip clamping mechanism and controls the rotation of the fingertip clamping mechanism. The manual multi-degree of freedom micro-manipulator for the surgical operation has three degrees of freedom of clamping, pitching and rotating, and is good in stability and flexibility of a finger mechanism, simple in structure, easy to operate and capable of better meeting requirements of present minimally invasive surgeries.

The invention discloses a micro manipulator for throat operation, which comprises a body a finger tip mechanical mechanism, a remove mechanism, a rotation mechanism, a switch mechanism, and a limit mechanism. Compared with existing technique, this invention has benefit as: 1. the series-type envelope distribution can decrease finger radial size fit to narrow space; 2. the approximate crank rocker mechanism, which composes of a throat clamp, a pin, a drive steel wire and a screw, can transfer motion precisely and obtain required stretch angle.

The invention belongs to the laser gyroscope technology, and relates to a device and method for measuring backscattering of a laser gyroscope ultra-smooth reflecting mirror. The device comprises an optical laser, a Faraday opto-isolator, a beam splitter A, a photoelectric intrusion-detector A, a ring-shaped resonant cavity, a micro-manipulator A, a beam splitter B, a photoelectric intrusion-detector B, an optical filter, a feedback mirror, a micro-manipulator B, a phase-locking amplifier and a frequency stabilization system. According to the invention, a part of energy of a pumping light beam is fed back to the ring-shaped resonant cavity to be in optical interference with backscattering in the cavity to improve the signal-to-noise ratio of backscattering signals of the ring-shaped resonant cavity; a reflecting mirror to be measured is enabled to move slightly along the mirror surface tangential direction to achieve accurate measurement for backscattering amplitude coefficient of the ultra-smooth reflecting mirror used by a laser gyroscope; the ultra-smooth reflecting mirror with small backscattering can be selected to be used for the adjustment of the laser gyroscope resonant cavity, so that important significance of reducing laser gyroscope locking areas and improving laser gyroscope precision is achieved.

A polymer linear actuator for a micro electro mechanical system (MEMS) and a micro manipulator for a measurement device of cranial nerve signal using the same are provided. The polymer linear actuator has first and second bodies positioned spaced apart to a distance from each other, and one or more pairs of V-type moving units connecting the first and second bodies together, wherein the moving units in pair are opposed to each other to convert a rotation motion of the respective moving units into a linear motion, thereby causing the first and second bodies to move linearly.

A micro-manipulator has a handling mechanism for gripping micro-material with two gripping fingers. The handling mechanism has a fixed finger with an end effecter for touching the micro-material, a movable finger with an end effecter capable of rotating around a rocking shaft for touching the micro-material, and an actuator for rotating the movable finger. The actuator drive moves the movable finger so as to be capable of touching a leading end of the movable finger end effecter to a leading end of the fixed finger end effecter. The micro-manipulator can securely and quickly grip a micro-material in a microscope visual field.

This disclosure relates to a micro manipulator having a simple structure and having high possibility of recording a biological signal of a neuron at a desired position by improving positioning resolution of an electrode disposed adjacent to a subject's brain neuron or an electrode holder attached with the electrode. The micro manipulator according to the disclosure includes: a motor which includes a shaft and a vibration portion; a mobile which is connected to the shaft so as to be movable along the shaft; and a frame which supports the motor, wherein an electrode is connected to the mobile in a direction parallel to a longitudinal direction of the shaft, and wherein when the mobile moves linearly in accordance with a vibration of the shaft due to the vibration portion, the electrode moves linearly.

A micro-manipulator has grippers for gripping micro-material; an actuator for driving the grippers; a drive amount detection device for detecting a drive amount of the actuator; a power control device for controlling power supplied to the actuator so that a difference in a target drive amount of the input actuator and a drive amount detected by the drive amount detection device is small, after at least the grippers touch the micro-material; a gripping determination device for determining that grippers have gripped the micro-material based on the difference; and a resilience value calculation device for calculating a resilience value that represents a degree of softness of the micro-material by dividing the actuator drive force that is equivalent to the repulsive force of micro-material gripped by the grippers in proportion to power supplied to the actuator via the power control device.

A micro-manipulator machine for harvesting and cryofreezing crystals for cryogenic storage and subsequent analysis includes a micropositioner mechanism for converting motions manually input to a position control knob to fractionally-scaled motions of a follower mechanism which includes a tool head support arm and tool head that releasably holds a filamentary polymer cryoloop for immersion into a liquid crystal growth media and extraction of a liquid drop containing a selected crystal from the media. A first automatic actuator mechanism orbits the tool head support arm, tool head, cryoloop, liquid drop and harvested crystal from a harvesting location to a retrieval location when the micropositioner input control arm has been moved manually away from the crystal harvesting location by the operator after extracting a crystal drop, and a second automatic actuator mechanism pivots the toll head into a flowing stream of a cryogenic gas to freeze the liquid drop and crystal.

The invention discloses a manual three-freedom-degree micro manipulator for minimally invasive surgery. The manual three-freedom-degree micro manipulator for minimally invasive surgery comprises a fixing block and a connecting frame, wherein the same rotating shaft which is horizontally arranged is rotatably connected to the tops of the inner walls on two sides of the connecting frame; a connecting block is connected to the outer wall of the periphery of the rotating shaft in a sleeving manner; the outer wall of the top of the connecting block is fixedly connected with the outer wall of the bottom of the fixing block; the same first connecting shaft which is horizontally arranged is rotatably connected to the bottoms of the inner walls on two sides of the connecting frame; a driving gear is connected to the periphery outer wall of the first connecting shaft in a sleeving manner; a driven gear is mounted on the outer wall of the bottom of the connecting block; and the driven gear is meshed with the driving gear. According to the manual three-freedom-degree micro manipulator for minimally invasive surgery disclosed by the invention, the connecting block, the driven gear, the connecting frame and the driving gear are arranged, so that the fixing block on the connecting block can be driven to move in a front and rear manner, the moving range of the manipulator is enlarged, and theworking efficiency is improved; and the connecting rod is arranged, so that rotation of the fixing block on the connecting block can be more stable, and the using safety of the manipulator is improved.