26 results about "Metal marker" patented technology

The invention discloses an intraoperative pulmonary nodule positioning method and system based on fusion of a CT image and an endoscope video. The method comprises the following steps: firstly, constructing a three-dimensional lung model containing a pulmonary nodule position based on preoperative high-resolution CT data; generating a real-time lung surface model by using an endoscope video stream through a three-dimensional reconstruction technology during the operation; a feature point extraction and matching algorithm is adopted, and a non-rigid registration technology is combined to realize accurate registration of the preoperative model and the intraoperative dynamic model; projection display of pulmonary nodules in a real-time endoscope visual field is established through space coordinate mapping, and a dynamic compensation algorithm is developed to solve the problem of tissue deformation caused by respiratory movement and instrument operation. Meanwhile, the virtual nodule position is overlaid to an endoscope video picture through the augmented reality technology, and visual intraoperative navigation is provided for surgeons. The method effectively solves the technical bottleneck that a traditional method depends on a metal marker and cannot adapt to intraoperative tissue deformation and the like, and has clinical practical value.

The invention relates to the technical field of radiotherapy, and discloses a mold body for radiotherapy image deformation registration verification and a verification method.The mold body comprises a base, a water mold is placed at the top of the base, an observation assembly is installed at the top of the base, a deformation assembly is installed in the water mold, and an extrusion assembly is installed in the base; a rotating assembly is installed at the bottom of the base, the deformation assembly comprises a supporting column, the supporting column is fixedly connected to the interior of the water mold, connecting pieces are fixedly connected to the sides, opposite to the supporting column, of the water mold, deformation blocks are fixedly connected to one ends of the multiple adjacent connecting pieces, and the deformation blocks are fixedly connected to the other ends of the multiple adjacent connecting pieces. A plurality of second metal beads are fixedly connected to the outer surface of the water mold. High-contrast metal mark points are arranged inside and outside the die body, the actual space positions before and after deformation of the die body are accurately obtained by using an image processing technology, and a physical true value independent of a software algorithm is provided.

The invention discloses a gold label implant and positioning feature processing equipment thereof, and relates to the field of implantable medical instruments, a gold label is a cylinder, and the side wall of the gold label is provided with positioning features; positioning feature machining equipment comprises an electric spark machining device and a control piece. The control piece comprises a rotating assembly and a power connection assembly; the rotating assembly comprises a mounting frame, a motor arranged on the mounting frame, a first bevel gear connected with the motor, a second bevel gear meshed with the first bevel gear, a chuck piece fixed to the second bevel gear and a clamping piece arranged on the chuck piece. Positioning features are marked on the surface of the metal marker, friction force can be effectively increased, the implant is made of inert alloy materials and is easy to recognize and track, and conventional medical examination is not affected; the positioning feature machining equipment adopts electric spark machining, effectively fixes a gold-labeled raw material alloy thin wire, meanwhile, the gold-labeled raw material alloy thin wire is connected into an electrode, the rotating angle of the alloy wire can be controlled through a motor during machining, and positioning features are gradually punched on the side wall.

The invention provides a water supply and drainage pipe network fault positioning method and system, and relates to the data processing technology, and the method comprises the following steps: controlling a magnetic field collection unit to carry out the pre-collection of a to-be-detected region, and obtaining the original magnetic field distribution of the corresponding to-be-detected region, the to-be-detected area comprises a detection pipeline and detection soil for filling the detection pipeline; a recovery filter screen is placed at a water outlet of the corresponding detection pipeline, all metal marking units which flow to the water outlet from the water inlet are determined to be blocked in response to the recovery filter screen, the magnetic field acquisition unit is controlled to perform subsequent acquisition on the to-be-detected area, and current magnetic field distribution is obtained; and comparing the current magnetic field distribution with the original magnetic field distribution, and determining fault positioning points located on the detection pipeline and fault attributes corresponding to each fault positioning point based on the obtained magnetic field difference part. According to the invention, the accuracy of fault positioning is at least improved.

The invention discloses a greenhouse cotton quilt position control method based on metal detection, relates to the technical field of greenhouse curtain rolling and unrolling automatic control, solves the technical problems of inaccurate positioning and frequent maintenance in the existing technical scheme, and comprises the following steps: 1, fixedly installing at least one metal marker in a greenhouse cotton quilt; 2, at least one metal detector is installed at a preset control point of a cotton quilt winding and unwinding path, the control point at least comprises an uplink detection point and a downlink detection point, and the control logic of reference point real-time calibration is adopted. In each descending process, when the cotton quilt runs to a descending detection point, the controller can utilize a metal detection signal to reset position data. Accumulated errors caused by factors such as cotton quilt stretching, slipping and rolling diameter change are eliminated, and it is ensured that the cotton quilt can be accurately stopped at a preset final position every time.

A braided suture fiducial metallic marker system includes a braided suture fiducial metallic marker system includes a metallic marker, a multiplicity of suture threads (absorbable or non-absorbable), braided with one another and encapsulating the marker, and a needle disposed at a distal end of the multiplicity of threads and a needle disposed at an opposite distal end. In this regard, a portion of the braided suture threads in which the marker is encapsulated may be visually demarcated with a contrasting color. As well, the marker may define a cavity which may in turn, contain a radioactive material. As another option, a single one of the multiplicity of suture threads may extend through one end of the cavity to another end of the cavity so that the single one of the multiplicity of threads is braided with others of the multiplicity of suture threads.

The application provides a non-metal pipeline metal marker detection method and device based on an eddy current effect, and relates to the technical field of non-metal pipeline detection. The method installs a metal marker carrying binary code on a pipeline, excites the eddy current effect of the metal marker by applying an alternating magnetic field, and picks up an induced magnetic field signal. The device adopts a double-D-shaped anti-phase series differential eddy current probe combined with a four-stage signal conditioning chain to improve the anti-interference ability and signal quality, and then extracts multi-domain features of the marker in the amplitude, phase and frequency spectrum. By matching the extracted features with a preset database, the device accurately analyzes the binary code and spatial position of the metal marker, thereby uniquely determining the identity information of the pipeline, including the ownership, material, burial depth and direction, etc. The application realizes high-precision positioning, large-capacity identity code and strong anti-interference detection, and effectively solves the problems of weak anti-interference, small code capacity and limited detection depth and precision in the existing non-metal pipeline positioning technology.

Systems, methods, and other embodiments described herein relate to ensuring proper usage of passenger restraint devices. In one embodiment, a method includes controlling the millimeter-wave (mm-wave) radar sensor to transmit mm-wave radar waves toward a seat of a vehicle. The method also includes 1) detecting, from reflected mm-wave radar waves, an arrangement of a concealed metallic marker within a passenger restraint device of the seat relative to a passenger in the seat and 2) estimating an expected arrangement of the passenger restraint device relative to the passenger. A notification is generated responsive to the reflected mm-wave radar waves indicating that the arrangement of the passenger restraint device is different than the expected arrangement of the passenger restraint device.

Systems, methods, and other embodiments described herein relate to ensuring proper usage of passenger restraint devices. In one embodiment, a method includes controlling the millimeter-wave (mm-wave) radar sensor to transmit mm-wave radar waves toward a seat of a vehicle. The method also includes 1) detecting, from reflected mm-wave radar waves, an arrangement of a concealed metallic marker within a passenger restraint device of the seat relative to a passenger in the seat and 2) estimating an expected arrangement of the passenger restraint device relative to the passenger. A notification is generated responsive to the reflected mm-wave radar waves indicating that the arrangement of the passenger restraint device is different than the expected arrangement of the passenger restraint device.

The application discloses a metal ion chelating structure applicable to mass spectrometry flow detection, and discloses a preparation method and application of the metal ion chelating structure. The metal ion chelating structure can efficiently chelate metal ions such as lanthanide metal ions and transition metal ions, and can directly connect the metal ions such as the lanthanide metal ions and the transition metal ions to antibodies, has high application performance, and meets the application requirement of mass spectrometry flow detection. The metal ion chelating structure has wide applicability, can improve the number of metal markers of mass spectrometry flow detection, and expands more detection channels. The preparation method of the metal ion chelating structure is simple in process, easy to synthesize, and low in cost.

The present application relates to the technical field of semiconductor testing and failure analysis, and particularly relates to a chip failure analysis sample preparation method based on three-dimensional scale, comprising the following steps: S1, preparing a chip into a planar sample, positioning a failure area of the planar sample and depositing a metal mark point above the failure area, obtaining an initial sample with the metal mark point; S2, sequentially depositing a first carbon film by using an electron beam and depositing a second carbon film by using an ion beam on a first surface of the initial sample, and turning over the initial sample. The present application deposits a metal mark point above a sample failure area as a three-dimensional space anchor point, realizes reliable physical coordinate transmission in a multi-dimensional turning sample preparation process, solves the problem that the original defect position is easily lost after sample turning or rotating in a traditional method, and guarantees the spatial positioning accuracy of a single microscopic failure area in orthogonal multi-direction continuous cutting preparation.

The utility model relates to the field of automotive interiors, and discloses a composite fabric structure capable of quickly identifying and positioning a joint. The composite fabric structure comprises a surface layer, an adhesive layer, a sponge layer and a base fabric layer which are stacked in sequence, wherein a metal marker is pre-embedded at a joint of the sponge layer. According to the invention, on the premise of keeping the physical properties of the original composite fabric, through the ingenious metal marker implantation scheme, the effective monitoring of the quality key control points in the production process of the automotive trim is realized.

The invention discloses a structural damage detection method for a carbon fiber reinforced resin-based composite material, and relates to the technical field of nondestructive testing, and the method comprises the following steps: acquiring resonant frequency data in real time through a micro-cantilever array, and irradiating a composite sensitive coating on the surface of the micro-cantilever array by using a plasmon laser beam to excite plasmon polariton resonance; the position of the micro-cantilever array with the resonance frequency data exceeding a reference deviation threshold value and the frequency shift amount of the plasmon polariton resonance exceeding a preset background noise fluctuation range is judged as a suspected damage position; and triggering electrochemical deposition through the coordinates of the suspected damaged position, and applying constant negative voltage to the surface of the suspected damaged position to generate metal mark stripes. By comparing the resonance frequency data with the reference resonance frequency data in the initial state, the position where the frequency deviation exceeds the preset threshold value is identified, and accurate capture of the mechanical response abnormity is achieved.

Irrigation of agricultural and horticultural crops is a crucial component of modern agriculture for ensuring consistently high yields. In this context, drip irrigation, and in particular subsurface drip irrigation, is a very water-efficient approach. However, the installation, dismantling, and operation of drip irrigation systems require significant labor. Specifically, with existing solutions, collecting the drip lines necessitates manually picking up each line for insertion into appropriate machinery. The present invention relates to a collection method and a collection device for drip line hoses from drip irrigation systems used in agriculture, forestry, or horticulture.The present invention, using drip irrigation tubing with metallic markers and a collection device according to the invention, enables the collection process of the drip irrigation tubing to be carried out without manual labor. This significantly reduces the costs of the process and increases the overall acceptance of drip irrigation. It also creates the conditions for the (further) automation and autonomization of the collection process.

A mine slope surface three-dimensional deformation monitoring device disclosed by the present invention comprises a marker post type datum reference frame and at least one stay wire type layered deformer, the marker post type datum reference frame comprises a hollow metal marker post, a square steel plate is arranged at the bottom of the hollow metal marker post, a circular tray is arranged at the top of the hollow metal marker post, and the stay wire type layered deformer is arranged on the circular tray. A fixing screw hole is formed in the circular tray, a high-precision GNSS module is installed on the circular tray, a transparent waterproof shell is arranged outside the high-precision GNSS module, at least three reflective strips are arranged on a rod body of the hollow metal marker rod, the stay wire type layered deformer comprises a metal anchor, the metal anchor is connected with a stay wire, and the stay wire is connected with the metal anchor. According to the invention, coordinate reference is provided by the marker post type reference frame in a stable area, data is acquired by the stay wire type layered deformer on the surface of the slope, coordinates of a monitoring point are calibrated by the reference frame GNSS module, deformation tension is captured by the stay wire and the sensor, three-dimensional deformation of the surface of the surface mine slope is accurately monitored by fusion analysis, and data is provided for safety early warning.

Protective eyewear includes a lens body, a metal marker, and a marker holder. The lens body has a first lens, a second lens, and a nosepiece interconnecting the first lens and the second lens. The marker holder is coupled to the lens body and formed to include a metal receiver to receive the metal marker therein so that the metal marker is detectable upon placement of the protective eyewear near a metal detector.

1. The name of the design product: computer with graphical user interface (CT bed coordinates of the center of the tumor are calculated). 2. The use of the design product: graphical user interface in the screen. 3. The design features of the design product: graphical user interface in the screen. 4. The picture or photo that best shows the design features: front view. 5. The use of the graphical user interface: accurately finding the center of a solid tumor under CT and the corresponding body surface marker point, directly used for radiotherapy planning and radiotherapy, reducing dosimetric errors. 6. The human-computer interaction mode of the graphical user interface: when positioning a tumor radiotherapy patient under CT, place three metal marker points at the intersection of the cross lines projected by the external laser system on the patient's body, and record the coordinates of the CT bed at this state. In the CT transverse image layer, determine the center coordinates formed by the three metal marker points, and select the appropriate solid tumor center coordinates by the radiotherapy physician. Input the coordinates of the two points into the Marker coordinates and the tumor center ISO coordinates in the left half of the interface in the front view, and click to calculate the difference. The distance and relative direction of the reference point and the tumor center in three dimensions can be calculated. Click on the value transfer to transfer the specific numerical value of the calculation to the bed hardware calculation module in the right half of the front view. Click on the calculation again to calculate the CT bed coordinates of the tumor center under the external laser system. Move the CT bed and the external laser positioning system to the calculated coordinates. At this time, the cross intersection projected by the laser positioning system on the body is placed with three metal marker points. The subsequent plan design and radiotherapy use the tumor center and the corresponding body surface marker point of the tumor center.

The application relates to a solid-state quantum light source preparation method, which comprises the following steps: S1. Front metal mark preparation: exposing and developing the front of a sample, and then evaporating metal and stripping after development; S2. Back metal mark preparation: exposing and developing the back of the sample after step S1 treatment, and then evaporating metal and stripping after development; S3. Front quantum dot positioning: positioning quantum dots on the sample after step S2 treatment to determine the positions of the quantum dots; S4. Front microcolumn preparation: preparing microcolumns on the front of the sample after step S3 treatment; S5. Front microcolumn planarization: planarizing the sample after step S4 treatment; and S6. Back super surface preparation: preparing a super surface on the back of the sample after step S5 treatment. The application realizes high brightness, high purity and high coherence, and meanwhile, the super surface controls quantum dot light emission in dimensions including but not limited to phase and polarization, so that a novel solid-state quantum light source with high brightness, high purity, high coherence and strong micro-nano light field control capability is realized.

The application provides a kind of cone beam industrial CT geometry parameter calibration method, device, terminal and storage medium, it adopts flat plate geometry correction phantom, the flat plate geometry correction phantom includes metal mark point part, metal mark point part includes plastic support structure, and the plastic support structure is embedded with 1 center metal mark point and multiple sets of concentric square metal mark points;Any one group of square metal mark points includes four metal mark points, and the four metal mark points are arranged at the four vertices of square with the center metal mark point as the symmetry center.Setting up the flat plate geometry correction phantom can effectively correct the geometry parameter of cone beam industrial CT.Specifically, only need to use the phantom to shoot two positions or two angles of CT, more accurate geometry parameter can be obtained, so that the final error of the geometry parameter of CT system can be kept within the level of micro nanometer.

The invention discloses a metal ion chelating structure capable of being applied to mass spectrum flow type detection. The invention also discloses a preparation method and application of the compound. The metal ion chelating structure can efficiently chelate metal ions such as lanthanide metal ions and transition metal ions, can directly connect the metal ions such as the lanthanide metal ions and the transition metal ions to an antibody, has efficient application performance, and meets the application requirements of mass spectrum flow type detection. The metal ion chelating structure has wide applicability, the number of metal markers for mass spectrum flow detection can be increased, and more detection channels are expanded. The preparation method of the metal ion chelating structure is simple in process, easy to synthesize and low in cost.

The application provides a three-dimensional integrated quantum chip and a preparation method thereof, metal marks for positioning are prepared on the surface of an epitaxial growth layer of a scanning tunneling microscope hydrogen mask direct writing precision device after packaging; the metal marks are scanned by a scanning probe microscope, and three-dimensional precise positioning of the device is realized; after a gate oxide layer is grown, field overlay is written on the gate oxide layer by using the positioning effect of the metal marks, and a top electrode, a multilayer stacked electrode or a through-silicon via three-dimensional electrode is prepared. The preparation method described in the embodiment realizes high-precision three-dimensional integrated processing by using a scanning probe microscope, and provides important technical support for silicon-based semiconductor quantum computing, quantum simulation and quantum chips.

The invention discloses a method and a device for automatically removing a paper tube with a joint, and the method comprises the following steps: in a tubular billet production stage, sticking a marking tape containing a metal component to the joint of body paper, so that the joint position has a metal characteristic; the produced tubular billets are cut into fixed-length paper tubes, and then the fixed-length paper tubes are conveyed to a detection station; scanning the paper tubes on the conveying line one by one by using a metal detector; when the metal detector detects that a metal signal exists in the paper tube, the paper tube is judged to be a defective product with a connector, and a control signal is sent to the removing executing mechanism; and the rejecting executing mechanism acts to remove the defective paper tubes from the conveying line, and the qualified paper tubes without metal signals are reserved. According to the invention, the non-contact, high-precision and automatic identification and elimination of the joint paper tube are realized by pre-burying the metal mark at the joint and combining with a high-sensitivity metal detection technology, the problems of low efficiency and high omission ratio of traditional manual visual inspection are effectively solved, and the quality consistency of the finished paper tube is obviously improved.

The invention discloses an anchorage nail implantation positioning device based on image guidance and a positioning method thereof.The device is composed of a flexible support body and a plurality of ray visible metal mark points, the device is fixed to the tooth surface of a patient through a fixing mechanism, the relation between a dot matrix and a tooth root can be clearly recognized in CBCT scanning, and a doctor judges the optimal entrance point and angle of an anchorage nail according to the relation; in addition, the structure is simple, the installation is rapid, and cross interference is avoided during preoperative and intraoperative operations; the mark dot matrix is free of artifact interference, clear in development and convenient for image navigation; 3D printing customization can be carried out according to the anatomical structure of a patient, and industrial implementation is achieved; the device is low in cost and can be repeatedly designed for different clinical scenes.

1. The name of the design product: positioning marker (radiotherapy). 2. The use of the design product: a metal marker for matching gold marker implanters for implanting into the human body, used for clinical routine treatment, physiotherapy and tumor radiotherapy and chemotherapy, and used for matching medical instruments and equipment to track and position specific lesion tissues. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The reference diagram in use is the state of the product implanted into the lesion site by the gold marker implanter.

The present invention relates to the field of medical composite materials and discloses a biocompatible and biodegradable poly(racemic lactide-trimethylene carbonate) / nanoferric oxide (PDT / Fe3O4) composite material. The method comprises combining the synthesized PDT with a certain amount of magnetic nano-Fe3O4 in an organic solvent with mechanical stirring, precipitating, vacuum drying, and hot-pressing using a flat-plate vulcanizer to obtain a thin sheet. The synthesized PDT-Fe3O4 composite material is a flexible material that addresses the prominent issues of traditional metal marker clips, such as poor imaging sensitivity, biological inertness, and rejection reactions, while exhibiting excellent imaging performance, bioabsorbability, and biodegradability.