745results about How to "Accurate guide" patented technology

A device and a process for performing high temporal- and spatial-resolution MR imaging of the anatomy of a patient during intensity modulated radiation therapy (IMRT) to directly measure and control the highly conformal ionizing radiation dose delivered to the patient for the treatment of diseases caused by proliferative tissue disorders. This invention combines the technologies of open MRI, multileaf-collimator or compensating filter-based IMRT delivery, and cobalt teletherapy into a single co-registered and gantry mounted system.

The subject invention pertains to an elastic sheath, device, and methods for disrupting and/or removing occlusive material from lumens, particularly biological lumens, such as the vasculature, ureter, urethra, fallopian tubes, bile duct, intestines, and the like. The subject invention provides for effective disruption and removal of occlusive material, such as a thrombus, from the body lumen with minimal risk of injury to the lumen wall. Advantageously, the invention can be used to achieve a high degree of removal while minimizing the amount of occlusive material that is released into the body lumen. The subject invention further pertains to methods for disrupting and removing occlusive material from a biological lumen. In another aspect, the present invention concerns a device useful as an in vitro model of luminal occlusion and methods for using the device to test the efficacy of devices and methods for treating luminal occlusions.

The present invention provides a vascular conduit device including a deformable flange and complementary securing ring in cooperation for securing the device within an aperture defined in a tissue wall. The present invention further provides a system for implanting such a vascular conduit device in a tissue wall. More specifically, the present invention provides a system including a coring device for defining an aperture in a tissue wall (such as a ventricle and/or a blood vessel) and securely implanting a vascular conduit device therein so as to provide fluid communication between a first and second surface of the tissue wall via the vascular conduit device.

A spinal rod guide and/or guide assembly is provided for mounting a spinal rod onto a spinal rod holder/connector of a vertebral bone screw. The spinal rod guide is configured to extend between an opening in a patient's body and the spinal rod holder of the vertebral bone screw assembly, to receive a spinal rod therein, and thereafter accurately guide the spinal rod into the spinal rod holder. The spinal rod guide is defined by a first elongated arc portion and a second elongated arc portion to define a guide tube for the introduction and placement of additional spinal rod components onto the spinal rod connector, particularly, but not necessarily, for securing the spinal rod into the spinal rod connector. The elongated arc portions are mountable or initially attached onto a top of a spinal rod holder of a spinal rod bone screw assembly. The elongated arc portions (tube) define first and second longitudinal slots extending from a top of the elongated arc portions to a bottom of the elongated arc portions. The two longitudinal slots are situated such as to be diametrically opposite one another. Each longitudinal slot aligns with a spinal rod slot of the spinal rod holder to thereby allow easy placement of the spinal rod into the spinal rod holder. Thereafter, the defined elongated tube provides direct communication and alignment with the top of the spinal rod holder in order to receive a spinal rod connector drive screw for securing the spinal rod into the spinal rod holder.

An electronically guided spinal rod system for the placement of a spinal rod into the heads of pedicle screws and other types of bone fixation systems includes a bone screw inserter having rod access slots extending longitudinally for a length along the screw inserter, a rod detection system coupled to the rod access slots and a rod pusher for inserting a spinal rod through the rod access slots. The electronically guided spinal rod system insures that the spinal rod will be accurately positioned while allowing the operator complete freedom to choose its specific path into the screw inserter rod access slots.

A method for making a template for a dental implant osteotomy in an edentulous space of a patient's mandible or maxilla, and components relating thereto The method includes the steps of forming a dental cast of the patient's mandible or maxilla, drilling a hole into the dental cast wherein the location and orientation of the hole correspond to a desired location and orientation of the dental implant osteotomy, inserting a guide post into the hole, magnetically attaching a sleeve having a longitudinal gap to the guide post, applying a molding material to a portion of the dental cast and to a portion of an outer surface of the sleeve, allowing the molding material to cure, and removing the cured template including the sleeve embedded therein from the dental cast, whereby using the template in the patient's mouth provides a guide means for drilling the osteotomy.

An assistant device for percutaneous puncture is disclosed. The assistance device includes a fixing element, a first rotatable element, a supporting element and a second rotatable element. The fixing element has a first rail, and the first rotatable element is slidably disposed on the first rail. The supporting element is connected to the first rotatable element. The second rotatable element is slidably disposed on the supporting element and has a puncture restraint pore.

A regional public opinion monitoring and decision-making auxiliary system based on big data comprises an information acquisition and storage module, a data pre-processing module, a big data public opinion analysis module, a public opinion monitoring, early warning and decision-making auxiliary module and a background management module, wherein the information acquisition and storage module is used for carrying out structuralized storage management on acquired public opinion source information to form a regional big data public opinion knowledge base which is updated in real time; the data pre-processing module is used for pre-processing data in the regional big data public opinion knowledge base to form a complete and ordered data set; the big data public opinion analysis module is used for carrying out public opinion analysis and tendency prediction on hot topics with appointed conditions and the like to obtain a public opinion analysis and tendency prediction result; the public opinion monitoring, early warning and decision-making auxiliary module is used for carrying out real-time monitoring and tracking, management and persuasion on customized public opinions dug and analyzed by sensitive word pairs in a pre-defined sensitive word bank, and announcing the customized public opinions to a decision maker in manners of in-station messages, short messages and mails; and the background management module is used for carrying out public opinion information classification management, user and authority management, keyword management, acquisition management, content management, special topic management and analysis report management.

An optical fiber comprises a singlemode core, and an inner cladding disposed around said core, an intermediate cladding disposed around said inner cladding and an outer cladding disposed around said intermediate cladding thereby forming a triple-clad geometry. The core is doped with rare-earth elements and represents the waveguide section of higher refractive index through which the signal is transmitted and amplified. A fiber coating is provided around said outer cladding. The core has a higher refractive index than said inner cladding, said inner cladding having a higher refractive index than said intermediate cladding, and said intermediate cladding having a higher refractive index than said outer cladding. The inner cladding has a fairly high refractive index to limit the numerical aperture (NA) of said core. The inner cladding is within said intermediate, larger, cladding which is made of glass, that is used to guide multimode, high-power pump, said inner cladding acting as an intermediate level between said core and said multi-mode pump guiding intermediate cladding, with said outer cladding being present in said optical fiber for allowing said intermediate cladding to guide the pump power properly. The outer cladding is made of glass or of a low-index polymer material. The inner cladding is adapted to trap some of the pump signal into a smaller section in order to accelerate the absorption of the pump power.

A fluid friction coupling for driving a fan of an internal combustion engine includes a solenoid configured such that it surrounds a drive shaft and is operatively arranged for moving a control part. The control part moves a valve body which controls the flow of a viscous fluid into a working chamber. The fluid friction coupling is of particularly compact configuration and magnetic losses are kept particularly low.

A rectal probe adapted for ultrasound and magnetic resonance imaging of the prostate, comprising: a) an ultrasound imaging probe; b) an MRI probe comprising a first magnetic field source for creating a static magnetic field in an MRI imaging region outside the rectal probe, a second magnetic field source for creating a time-varying magnetic field which excites nuclei in the MRI imaging region, and a receiver for receiving NMR signals from the excited nuclei and generating MRI imaging data indicative thereof; and c) a link joining the ultrasound probe and the MRI probe.

The invention relates to the field of track beams, in particular to a straddle type single-track double-box rectangular steel-concrete composite track beam structure. The straddle type single-track double-box rectangular steel-concrete composite track beam structure comprises two steel-concrete track main beams parallel to each other; the two steel-concrete track main beams are connected through crossbeams below and a low plain longitudinal; each steel-concrete track main beam comprises a steel beam structure with a box-type cross section and a concrete cuboid structure with a rectangular cross section; each concrete cuboid structure is positioned above the corresponding steel beam structure and is connected with the steel beam structure through shear nails; the span of each steel-concrete track main beam is 30-80 meters; the cross beams are I beams and are in bolt connection with cross beam connecting plates of the steel-concrete track main beams; the low plain longitudinal is a diamond truss, and plain main rod piece parts are respectively connected with the steel-concrete track main beams and the cross beams. The straddle type single-track double-box rectangular steel-concrete composite track beam structure can be suitable for building double-line large-span track beams, and the double-line large-span track beams are large in span, high in transverse stiffness and high in transverse stress performance structurally.

An optical coherence tomography probe and laser combination device configured for real-time z-directional guidance of the incisional depth of a surgical procedure. It can be used alone or placed within the working channel of an endoscope. The device includes an OCT single mode fiber, and a laser fiber or laser hollow waveguide or electrical surgical wire positioned adjacent to the OCT single mode fiber. The single mode fiber is configured to move laterally when activated by an actuator to scan light data reflected from a sample that is positioned in front of a distal end of the device. The light data can be processed to generate a B-scan image. The device can collect data in real-time during lasing, or immediately prior to and following the cutting. The surgical tool, when coupled to a processor, can deactivate when the B-scan image identifies that the incision is within a predefined tolerance.

A system and a method of performing a frameless image-guided biopsy uses imaging, a six-dimensional robotic couch system, a laser guidance system, an optical distance indicator, and a needle control apparatus. A planning CT scan is made of the patient with stereotactic fiduciary markers to localize and produce digitally reconstructed radiographs. Two stereoscopic images are generated using an imaging device to visualize and identify a target tumor. The images are fused with the digitally reconstructed radiographs of the planning CT scan to process tumor location. The tumor location data are communicated to the movable robotic couch to position the target tumor of the patient at a known isocenter location. A biopsy needle is guided with a laser alignment mechanism towards the isocenter at the determined depth using a needle positioning apparatus and an Optical Distance Indicator, and a biopsy sample of the target tumor is obtained.

A positioning system, device, and method are provided to facilitate the in-flight positioning of two aircraft relative to one another such that a second aircraft is guided to an in-flight refueling position relative to a first aircraft. The system, device, and method of the present invention provide a signal emitted from a positioning device carried by the first aircraft, wherein the signal defines a signal envelope containing the in-flight refueling position. The signal is adapted to be receivable by the second aircraft such that the signal may guide the second aircraft to the in-flight refueling position relative to the first aircraft.

The invention provides a system and a method for preventing teenagers from addicting to network. The system comprises three parts, namely a network strategy management unit, a strategy service setting unit and an edge acquisition control unit which are arranged at a core network server end of a telecom operator; the system is matched with an addicting preventing method to ensure that the addicting preventing system can operate without installing any client on a computer of a user and the system can be prevented from being broken; meanwhile, the user can manage the whole addicting preventing process and set functions of the system by adopting a web mode very conveniently and realize the addicting preventing control; and the user can set the system according to the personal requirement at any time and any place, so that a larger space for the user is provided. According to the system and the method disclosed by the invention, after the net playing behavior of the user is recorded, the comprehensive analysis can be carried out, the net playing conditions of the teenagers are fully learned and the correct guidance for the growth of children is realized.

The present invention relates to a method for the registration and superimposition of image data when taking serial radiographs in medical imaging, wherein a plurality of image data sets for a region of a patient (17) that is being investigated are constructed at time intervals using an imaging system (1) and are referenced with a first image data set for the region that is being investigated that was constructed previously using said imaging system (1). In the above method, a location system (2) is used during the production of serial radiographs constantly, or at least at a respective proximity in time to the construction of individual data sets, to determine a current spatial position of the region being investigated in a reference system that is firmly connected to the imaging system (1), whereby in the construction of the first image data set, a first spatial position of the region that is being investigated is recorded. In the construction of some or all further image data sets, the respective current spatial position of the region that is being investigated is determined and an image content of each first image data set is geometrically adapted on the basis of the difference between the first and the current spatial position, such that compensation is made for a different spatial position of the region that is being investigated. The geometrically adapted first image data set or an image data set derived therefrom, or an image data set that is positionally connected thereto by registration is then displayed superimposed with the respective further image data set.