63 results about "Metal marker" patented technology

A plurality of CT images of an organ (10) which has undergone a subtle variation or deformation are used as input data, blood vessels and trachea 12 distributed inside the organ are extracted and subjected to thinning, the thus thinned images 14 are used to extract the coordinates of bifurcations 16 and connections, the thus extracted coordinates are used as feature points to track the motion of individual points between a plurality of CT images in a three dimensional space, thereby measuring the movement of the organ (10). Thus, it is possible to realize a local motion tracking at an arbitrary point over an entire region inside an organ, which would be impossible by using a metal marker.

The invention provides a test structure for analyzing through-hole type metal-interconnected electromigration reliability. The test structure comprises at least two layers of metal wires; an insulating dielectric layer is respectively filled between adjacent metal wires of each layer; adjacent layers of metal wires are separated by insulating dielectric layers, and the conduction of the adjacent layers of metal wires is realized through metal through holes; and at least one layer of insulating dielectric layers covers on the top layer of metal wires. The test structure for analyzing the through-hole type metal-interconnected electromigration reliability is characterized in that: the insulating dielectric layers covering on the top layer of metal wires contain metal markers which are used for indicating the positions of the metal through holes. With the adoption of the test structure provided by the invention, the positions of metal through holes can be known through observing from any layer by using an SEM (Scanning Electron Microscope) without grinding to strip layers, and the metal through holes can be conveniently and fast positioned when an FIB (Focus Ion Beam) is used for cutting, so that the efficiency is increased and the time for using machine platforms is saved.

The invention relates to a colloidal gold immune test paper for rapid detection of dibutyl phthalate as well as a preparation method and application thereof. The colloidal gold immune test paper comprises a reaction film, a sample pad, a conjugate releasing pad, an absorbent pad and a back pad. The reaction film is coated with a testing area of a dibutyl phthalate-carrier protein conjugate and a quality control area of goat-anti-mouse IgG; the conjugate releasing pad is coated with a dibutyl phthalate monoclonal antibody, namely a colloid metal marker. The test paper provided by the present invention can be used for detecting the residual quantity of the dibutyl phthalate drugs in the animal-derived food, such as the chicken, the pork, the urine, and the honey. The test paper has the advantages of simple operation, low cost, high sensitivity, and quick test speed, is applicable for large-scale popularization and mass sample screening, can be controlled in the scene, does not need special instruments and specialized persons, and is easy to implement.

The invention provides a metal marker tag and a detection system. The metal marker tag comprises a metal symbol manufactured on the surface of a metal article and recording article information, wherein an electro-magnetic induction coil is further arranged on the surface of the metal article, the metal marker tag utilizes the metal symbol to encoding a position parameter of the surface of the metal article and a metal symbol parameter and records the article information. The electro-magnetic induction coil comprises a solenoid coil and an alternating-current signal generator connected with the solenoid coil, wherein the electro-magnetic induction coil is arranged above the surface of the metal article, the alternating-current signal generator generates an alternating-current frequency signal to induce the solenoid coil to enable metal surface to sense alternating current. The metal marker tag has the advantages that the metal marker tag is large in information amount, is not easily polluted and can perform automatic recognition, a metal marker tag recording and detecting system is supplemented for an existing metal article information recording mode and can be widely applied to article information sensing in an internet of things system.

The invention relates to a non-sharpening invisible marking pen used for cloth and leather and a preparation method thereof. The marking pen comprises a pen holder and a pen refill and is characterized in that the pen refill is made from components which can be eliminated by heat or pneumatic type components; the non-sharpening invisible marking pen used for cloth and leather provided by the invention needs no sharpening, and all scores can disappear automatically or immediately disappear after ironed, thereby leading to convenient use. The components of the non-sharpening marking pen used for cloth and leather provided by the invention are all nontoxic and no harm is to human body when components are emitted into the environment after being ironed or oxidized and the disappearance of colors.

The invention discloses a metal marker tag detection system based on an eddy current technology. The metal marker tag detection system comprises an alternating current signal generator, and the system further comprises a detection coil, a phase and amplitude detector, a direct current offset amplifier, an analogue-to-digital converter and a digital signal processor all which are sequentially connected, wherein the alternating current signal generator is respectively connected with the detection coil and the phase and amplitude detector. The beneficial effect of the system is that the metal marker tag detection system based on eddy current detection belongs to non-contact detection, is high in detection speed, and easy to realize automatic detection. The detector is high in sensitivity and the higher-density information can be recorded. The detection system is small in volume and can form portable detection equipment.

The object of the present invention is to provide a black marker composition capable of forming non-metal marker which sufficiently ensures the adhering strength and the contrast against the foundation; the electronic component comprising the marker made of said black marker composition, and further the communication device comprising said electronic component.

The marker composition according to the present invention comprises a borosilicate glass, and a black oxide including Cr, Mn and one or more elements selected from the group consisting of Fe, Ni, Cu and Co.

The invention discloses an intelligent medical waste management system special for an operating room. A classification garbage can capable of automatically identifying and counting medical gauze is mainly composed of a control module (4), a metal sensing device (3), a gauze buffering device (2), a human-computer interaction interface (5), a power module (6) and a waste container. Classified collection and management of various medical wastes are achieved in the operation process, and meanwhile, rapid counting of the medical gauze with metal markers is achieved, so that the workload of medicalstaff in the operating room is greatly reduced, the operation efficiency is improved, particularly, management loopholes of the medical gauze can be effectively eradicated, and the risk that the medical gauze is left in a body is reduced.

The invention relates to the technical field of semiconductors, in particular to a photoetching overlay mark and a preparation method thereof. The preparation method comprises the following steps of S1, manufacturing a mark point pattern, transferring the mark point pattern to a chip, and exposing an epitaxial layer; s2, etching the epitaxial layer; s3, evaporating a metal mark point, wherein themetal structure is CrAlTiPtAu, and the CrAlTiPtAu metal structure sequentially comprises a metal Cr layer, an Al layer, a Ti layer, a Pt layer and an Au layer from bottom to top. and S4, stripping anddegumming. The photoetching overlay mark prepared by the method provided by the invention has strong wear resistance and high resolution, is not easy to corrode, and is slightly influenced by the physical bombardment of ions and the corrosion of a chemical solution; and meanwhile, metal marking points can reflect light rays, so that the metal marking points are clearer, and the alignment accuracyis improved.

Disclosed are methods and apparatus for identifying non-metallic subterranean structures using amorphous metal markers associated with the structures. Some examples will include the amorphous metal in the form of one or more sections of an amorphous metal foil within a protective enclosure sufficient to physically isolate the amorphous metal foil from the surrounding Earth. The amorphous metal foil and enclosure may be in the form of a tape which either will be secured to, or placed proximate the subterranean structure, which may be, for example, a pipe or conduit, or other non-metallic structure.

The invention provides a preparation method and a structure of an overlay alignment mark. The overlay alignment mark comprises a metal mark and a current layer mark, wherein the metal mark serves as afront layer mark, the metal mark penetrates through the thin film structure, the bottom of the metal mark is located in the substrate, the substrate comprises a substrate first surface and a substrate second surface arranged correspondingly, and the thin film structure is located on the substrate first surface; the layer mark is located on the second surface of the substrate. According to the invention, the metal mark is used as the front layer mark, so that the signal intensity of the front layer mark to infrared rays is improved, the measurement error of the overlay alignment mark is reduced, the OVL is improved, the photoetching precision is improved, and the product quality is improved, and the metal marks are formed while the metal interconnection structure is formed, so that the cost can be further reduced.

The invention provides a spherical metal marked cone beam CT metal artifact removal system and removal method. The spherical metal marked cone beam CT metal artifact removal system belongs to the field of cone beam CT imaging and comprises a two-dimensional projection drawing metal projection area processing module, a metal projection screening module, a three-dimensional reconstruction module and a three-dimensional image processing module. The method comprises the following specific operation steps of searching a metal mark on a projection drawing; screening metal mark points according to the metal coordinate three-dimensional projection relation; processing the projection drawing, and obtaining a two-dimensional projection drawing without metal mark projection through filling by using projection peripheral information; reconstructing by using the processed projection drawing to obtain a CT image without metal marks and metal artifacts; and processing the CT image and adding the metal mark part to obtain a complete cone beam CT image. The spherical metal marking efficiency is high, and noise interference is not likely to happen.

The invention discloses an intelligent medical waste management system special for an operating room. The system is mainly composed of a control module (4), a gauze flow guide rail (2), a metal induction device (3), a human-computer interaction interface (5), a power module (6) and a waste container. Classified collection and management of various medical wastes are achieved in the operation process, meanwhile, rapid counting of the medical gauze with the metal markers is achieved, the workload of medical staff in an operating room is greatly reduced, the operation efficiency is improved, particularly, management loopholes of the medical gauze can be effectively eradicated, and the risk that the medical gauze is left in the body is reduced.

The invention belongs to the technical field of unimolecular imaging and recognition in biomedicine and medicine research. The method is characterized in that aptamer of a target is divided into two fragments, the split end of each fragment is marked with noble metal nanoparticles with a surface plasma resonance effect, so that aptamer molecular probes marked with two types of noble metal nanoparticles are formed; the two types probes are respectively bound to a same target molecule; during recovery, a generated stable surface plasma resonance coupling signal serves as specificity unimolecular recognition information of the target. The method is capable of achieving an effect of recognizing the target from noise background in which multiple single noble metal markers exist, has specificity target recognition capability, and is capable of solving the problem that currently used metal markers are poor in specificity recognition capability.

The invention provides a transcatheter delivery device for delivering a novel slide fastener scaffold to a narrow lumen. The device consists of an outer sleeve, an inner sheath and a sacculus catheter, wherein the outer sleeve is provided with a near end, a far end and an inner cavity extending between the two ends; the inner sheath is also provided with a near end, a far end and an inner cavity extending between the two ends; the outer diameter of the inner sheath ensures that the inner sheath is slidably inserted into the cavity of the outer sleeve; the sacculus catheter is also provided with a near end, a far end and an inner cavity; the outer diameter of the sacculus catheter ensures that the sacculus catheter is slidably inserted into the cavity of the inner sheath; the far end of the sacculus catheter is provided with a sacculus, and the length and diameter of the sacculus can be selected according to the requirement of the scaffold; two ends of the sacculus are respectively provided with a metal marker for assisting positioning the scaffold; the far end of the sacculus is attached with a tapered body which can prevent the scaffold from sliding to the far end, and the near end part of the tapered body can be inserted into the outer sleeve, so that the tapered body and the outer surface of the outer sleeve are kept on the same horizontal plane; and the inner sheath is slightly shorter than the sacculus catheter, and directly reaches the near end of the sacculus of the sacculus catheter, so the scaffold can be prevented from sliding to the near end.

The embodiment of the invention discloses a lung metal marker detection device and system. The detection device comprises a detection head, a connecting rod and a prompt unit, wherein the detection head comprises a supporting frame and a detection unit arranged on the supporting frame, and the supporting frame can drive the detection unit to be unfolded or folded; the connecting rod is connected with the supporting frame, a processing unit is arranged on the connecting rod, and is coupled with the detection unit; the prompting unit is coupled with the processing unit; the processing unit is used for driving the detection unit to generate a detection magnetic field, receiving detection magnetic field characteristic change caused by a metal marker, detected by the detection unit, convertingthe detection magnetic field characteristic change into a prompt electric signal and sending the prompt electric signal to the prompt unit; and the prompt unit converts the received prompting electricsignal into a prompting signal so as to prompt the position of the metal marker. According to the technical scheme provided by the embodiment of the invention, the detection head can extend into a human body for use, the metal marker placed in the lung and used for positioning a focus can be quickly positioned, and the operation time is shortened when wounds of a patient are reduced.

The invention relates to the field of medical composite materials, and discloses a poly (racemic lactide-trimethylene carbonate)/nano ferroferric oxide (PDT/Fe3O4) composite material with biocompatibility and biodegradability and a preparation method thereof. The preparation method comprises the following steps of: compounding synthesized PDT and a certain amount of magnetic nano Fe3O4 in an organic solvent by means of mechanical stirring, precipitating, and drying in vacuum; and performing hot-pressing by using a press vulcanizer to obtain a sheet. The PDT-Fe3O4 composite material synthesized by the method of the invention belongs to a flexible material, and has good imaging function, bioabsorbability and biodegradability in order to solve the prominent problems of poor developing sensitivity, biological inertness, rejection reaction and the like of a traditional metal marking clip.

The invention discloses a marking ball positioning method and application thereof. The method comprises the steps of: (1) installing at least three coplanar and non-collinear actual marking balls at a focus of a human body, and collecting an image containing the actual marking balls; (2) extracting all spheres in the image as suspected marking balls, and respectively solving the centroid of each sphere; (3) selecting suspected marking balls with the same number as the actual marking balls to form a plurality of point sets to be matched, and judging whether the suspected marking balls are matched with actual point sets formed by the actual marking balls or not in sequence; if so, taking a point set to be matched as a candidate point set, otherwise, rejecting the point set to be matched, and acquiring all candidate point sets; and (4) carrying out registration on the obtained candidate point sets and the actual point sets, and selecting a marking ball combination corresponding to the candidate point set with the minimum projection error as a final marking ball combination. The marking ball positioning method adopts non-metal markers, so that registration errors caused by artifacts brought by metal markers to a CT image and registration errors caused by manufacturing and measuring errors of steel balls and tracers are avoided.

A radiation image processing apparatus includes: a group processing unit classifying a plurality of metal markers into a first group relatively far from a detector and a second group relatively close to the detector based on the area of each image of the plurality of metal markers in a captured image; a marker classification unit classifying the plurality of metal markers based on the relative positions of the plurality of metal markers to on the image plane of the captured image for each of the classified groups; and a pair processing unit selecting the metal markers of the first group and the metal markers of the second group, of which the relative positions match each other, as a pair.