1084results about "Foreign body detection" patented technology

Improved novel 3D imaging and reconstruction methods for quantitative and accurate 3D imaging used in multiple industries, segments, and applications within each. Improvement includes methods and hardware configured to improve performance and lower radiation and improve accessibility. Using simplified system matrix and datasets of little scatter interference in tomographic image acquisition and reconstruction, in some cases, using time continuity and spatial continuity to generate parameter data for substances within VOI for a number of key applications in medical and non-medical fields.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

An intravascular ultrasound (IVUS) system having an IVUS catheter, an IVUS console, and a patient interface module are disclosed. A representative IVUS console is configured to generate commands and activation signals according to predetermined activation patterns. A representative IVUS catheter includes an elongated housing; a plurality of ultrasonic transducer elements arranged distally in a circumferential array; and a plurality of ultrasonic transducer controllers, with each ultrasonic transducer controller coupled to a corresponding subset of ultrasonic transducer elements, and each ultrasonic transducer controller configured, in response to one or more commands, to activate one or more ultrasonic transducer elements within a selected sub-aperture of the circumferential array to generate a focused ultrasonic beam, typically having a selected focal point and a selected scan line. In a representative embodiment, each ultrasonic transducer controller is further configured to store one or more portions of the predetermined activation patterns.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

Devices and methods are described for accessing an intracranial extravascular space of a patient. For example, this disclosure describes devices and methods for drainage of a subdural hematoma disposed within an intracranial extravascular space of a patient.

Embodiments of the present invention relate generally to implant placement into bone. More specifically, embodiments of the invention relate to implant placement across the sacroiliac joint. Placement can be facilitated using various CT imaging views that allow the implants to be placed in bone associated with articular cartilage.

The invention relates to the technical field of tumor interventional operations, and discloses a visual navigation method based on a tumor interventional operation robot. The method comprises the following steps: acquiring real-time medical image data of a tumor area containing multi-modal imaging information so as to comprehensively present anatomical details; and performing three-dimensional reconstruction on the image data to generate a tumor area three-dimensional anatomical structure model capable of visually displaying a space structure. Key anatomical feature points are extracted based on the model, space coordinates are calculated, a surgical robot intervention path is planned according to the coordinates, and an initial navigation track is generated; and continuously collecting real-time pose data of the robot in an operation, dynamically matching the real-time pose data with the initial navigation trajectory, adjusting motion parameters according to a matching result, and generating a corrected navigation instruction. The method can reflect the intraoperative anatomy condition in real time, dynamically optimize the path, solve the problems that traditional navigation depends on preoperative static images and lacks real-time adjustment, reduce operative complications and improve the treatment effect of patients.

An imaging system can include a cone beam tomosynthesis imaging system configured to create a 3D image of a patient anatomy upon an initiation input. The system can also include at least one memory device that has instructions that, when executed by at least one processor, cause the tomosynthesis imaging system to execute multiple actions including obtain the 3D image from the tomosynthesis imaging system; obtain a prior 3D image of the patient anatomy; and register the 3D image with the prior 3D image to produce a composite 3D image. The navigation system can further include an interface system which accepts the initiation input to obtain the 3D image and renders at least a portion of the composite 3D image for review by a supervisor.

Described herein are systems and methods for positioning a radiation source with respect to one or more regions of interest in a coordinate system. Such systems and methods may be used in emission guided radiation therapy (EGRT) for the localized delivery of radiation to one or more patient tumor regions. These systems comprise a gantry movable about a patient area, where a plurality of positron emission detectors, a radiation source are arranged movably on the gantry, and a controller. The controller is configured to identify a coincident positron annihilation emission path and to position the radiation source to apply a radiation beam along the identified emission path. The systems and methods described herein can be used alone or in conjunction with surgery, chemotherapy, and / or brachytherapy for the treatment of tumors.

An imaging system and method includes a display, a processor, and a memory storing processor-executable code that causes receiving an image of a patient with a medical device disposed therein, detecting the medical device within the image, detecting one or more reference landmark(s) within the image, and generating a combined image by superimposing an overlay on the image to indicate a position of the medical device relative to the reference landmarks. The processor-executable code further causes the image processing system to generate a checklist for verification by a user of the position of the medical device for presentation with the combined image on the display to help the user to adhere to clinical guidelines for placement of the device. In addition, the processor-executable code can prefill the checklist using an artificial intelligence model, with checklist responses used to train or validate the AI model, or for quality assurance purposes.

A system and method combine optical and radiographic data to enhance imaging capabilities. Specifically, the system combines visually obtained patient pose position information and radiographic image information to facilitate calibrated surgical navigation. A reconstruction of a 3D CT volume is generated from biplanar X-ray projections which are back projected into two separate volumes and then concatenated into a single volume along a new dimension and passed through a pretrained deep learning model to decode the concatenated volume into a single 3D volume.

A calibration target for use with a radiographic image detector includes a target body securable to the image detector and a plurality of radiopaque linear markers, e.g. wires, fixed to the target body, wherein access to the image detector by incident radiation is at least partially blocked by the plurality of linear markers. By using the geometric properties of wires and advanced detection techniques, a precise calibration suitable for high-quality, volumetric three-dimensional CT reconstruction from biplanar X-ray images is achieved.

The invention relates to the technical field of medical instruments, and discloses a breast cancer sentinel lymph node positioning system and method, and the system comprises a data collection subsystem, a space positioning subsystem and a central processing subsystem. The method comprises the following steps: acquiring an anatomical structure image, a radioactivity counting rate and fluorescence intensity after performing primary fluorescence, radioactivity and secondary pulse type fluorescence tracer injection in sequence; establishing a global coordinate system and generating an anatomical region of interest; constructing a weighted directed topological graph based on the initial fluorescence data, and obtaining a baseline flow velocity; extracting radionuclide dynamic characteristics based on the radioactive data; a functional flow rate attenuation coefficient is calculated based on the second pulsed fluorescence data. And a multi-factor scoring model is applied, topological information, dynamic characteristics and functional flow velocity attenuation coefficients are fused, and a comprehensive score is calculated to identify the sentinel lymph node. According to the method, the lymphatic flow topological structure, nuclide dynamics and functional flow velocity information are combined, and the positioning accuracy and reliability are improved.

To provide an image processing device, an image processing method, and an image processing program that enable a distance of an inner cannula in which a puncture needle projects to be easily checked as compared to a case of manually measuring the distance.SOLUTION: A control part performs processing of displaying a virtual position 36 that a distal end of an inner cannula reaches so as to be superimposed on a CT image 38 on the basis of predetermined distance information to the distal end of the inner cannula when the inner cannula projects from an outer cannula 32.SELECTED DRAWING: Figure 4

The utility model relates to a digestive tract stenosis detection device which comprises an outer shell layer, an inner shell layer and filler. Wherein the inner shell layer comprises an inner shell and an inner shell cap; the inner shell and the inner shell cap are in butt joint to form a sealed cavity; the filler comprises a plurality of markers which are not mutually adhered, and all the markers are accommodated in the sealed cavity; and the outer shell layer wraps the inner shell layer. The digestive tract stenosis detection device is simple in structure, easy to manufacture and beneficial to reduction of production cost.

The invention discloses a lung deep targeted delivery method and a micro-robot cluster, and the method comprises the following steps: preparing microgel particles containing magnetic particles, developing particles and cargos, and combining the prepared microgel particles to obtain the micro-robot cluster; the micro-robot cluster is controlled to move, climb and reconstruct in a non-fluid environment, so that the micro-robot cluster moves in a pipeline environment with holes; controlling the micro-robot cluster to move in the lung sample under the guidance of X-rays, and delivering the micro-robot cluster to a target bronchus of the lung sample; or the micro-robot cluster is controlled to be delivered in the target lung under the guidance of computed tomography imaging, and the wrapped goods are released in the target bronchus; the micro robot cluster provided by the invention can realize targeted delivery in a lung environment full of air, a lung environment with a mucus layer and a lung deep target bronchus.

Devices and methods for making a polymer with a porous layer from a solid piece of polymer are disclosed. In various embodiments, the method includes heating a surface of a solid piece of polymer to a processing temperature and holding the processing temperature while displacing a porogen layer through the surface of the polymer to create a matrix layer of the solid polymer body comprising the polymer and the porogen layer. In at least one embodiment, the method also includes removing at least a portion of the layer of porogen from the matrix layer to create a porous layer of the solid piece of polymer.

A system includes a processor circuit that receives intravascular imaging data from an intravascular imaging catheter, an x-ray image from an x-ray imaging device, and intravascular pressure data from an intravascular pressure-sensitive guidewire. The processor circuit correlates the intravascular imaging data and the intravascular pressure data with locations along a body lumen shown in the x-ray image. The processor circuit generates a longitudinal view of the body lumen based on the intravascular imaging data and outputs a screen display including the longitudinal view of the body lumen with an overlaid graphic representation corresponding to the intravascular pressure measurements.

A method and system of correcting alignment of catheter relative to a target including receiving signals from an inertial measurement unit located at a distal end of a catheter, determining movement of the distal end of the catheter caused by physiological forces, receiving images depicting the distal end of the catheter and the target, identifying the distal end of the catheter and the target in the images, determining an orientation of the distal end of the catheter relative to the target and articulating the distal tip of the catheter in response to the detected movement to achieve and maintain an orientation towards the target such that a tool extended from an opening at the distal end of the catheter would intersect the target.

Various methods and systems are provided for x-ray imaging. In one embodiment, a method includes acquiring a plurality of fluoroscopic images depicting an interventional tool positioned relative to an anatomy of interest of a patient, segmenting the interventional tool in the plurality of fluoroscopic images, measuring motion of the patient in the plurality of fluoroscopic images, correcting the plurality of fluoroscopic images to remove the motion of the patient, registering the segmented interventional tool to the anatomy of interest in the corrected plurality of fluoroscopic images, and displaying images with the segmented interventional tool registered to the anatomy of interest. In this way, a practitioner may view the position and movement of an interventional tool located within a patient relative to static images of the anatomy without motion artifacts or errors induced by patient motion such as respiratory motion or cardiac motion.

A method for molecular image acquisition includes beginning acquisition of a molecular image via a molecular imaging system, performing one or more analyses of the molecular image during acquisition of the molecular image to determine whether at least one hot spot is present in the image, and if it is determined that it is statistically significant that there is either at least one hot spot present or there is not at least one hot spot present in the image in any one of the one or more analyses of the molecular image, performing at least one of providing a recommendation that the acquisition be stopped or stopping the acquisition automatically.

Tracked mobile X-ray imaging equipment is used to produce single or stereo long calibrated views of the anatomy of a patient on the operating table. The system estimates the position and orientation of the anatomical planes, virtually places measurement grids over these reference planes, and transforms any radiographic views taking by the X-ray imaging system onto these calibrated planes. The system may apply information about the depth of the anatomy to remove parallax artifacts. This system enables displaying and evaluation of the entire radiographic length of the anatomical planes using a mobile X-ray equipment. It also provides a platform for overlaying the real time X-ray images taken during operation with radiographic images of the patient or schematic of the surgical plan developed before the surgery for quick evaluation of a surgical plan.

A method and a system assisting in monitoring the health condition of persons. A security body scanner is configured for a scan of a body of a person for security reasons with the further feature of comprising a communication component that is configured for providing health data of the person on the basis of the body scan.

Disclosed are a method and device for analyzing human tissue on the basis of a medical image. A tissue analysis device generates training data including a two-dimensional medical image and volume information of tissue by using a three-dimensional medical image, and trains, by using the training data, an artificial intelligence model that obtains a three-dimensional size, volume, or weight of tissue by dividing at least one or more normal or diseased tissues from a two-dimensional medical image in which a plurality of tissues are displayed overlapping on the same plane. In addition, the tissue analysis device obtains a three-dimensional size, volume, or weight of normal or diseased tissue from an X-ray medical image by using the artificial intelligence model.

A method for automatic registration of a robotic endoscopic instrument is provided. The method includes: (a) generating a first transformation between an orientation of the robotic endoscopic instrument and an orientation of the position sensor based at least in part on a first sensor data set acquired using the position sensor; (b) generating a second transformation between a coordinate system of the robotic endoscopic instrument and a coordinate system of the model representative of the anatomical lumen network based at least in part on the first transformation and the second set of sensor data; and (c) updating the second transformation using an update algorithm based at least in part on the third sensor data set.

A radiological imaging device comprises a source defining an acquisition axis, a detector, a power supply, a control unit to control at least the source and the detector, and a connector for an additional source to the power supply and the control unit.

An imaging system is provided comprising an imaging probe and at least one delivery device. The imaging probe comprises an elongate shaft, a rotatable optical core and an optical assembly. The elongate shaft comprises a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion. The rotatable optical core is positioned within the lumen of the elongate shaft and comprises a proximal end and a distal end. The rotatable optical core is configured to optically and mechanically connect with an interface unit. The optical assembly is positioned in the elongate shaft distal portion and proximate the rotatable optical core distal end. The optical assembly is configured to direct light to tissue and collect reflected light from the tissue. The imaging probe is constructed and arranged to collect image data from a patient site. The at least one delivery device is constructed and arranged to slidingly engage the imaging probe. Methods of introducing the imaging probe and the at least one delivery catheter into a patient are also provided.

A method and system is disclosed for acquiring image data of a subject. The image data can be collected with an imaging system with at least two different energy characteristics. The image data can be reconstructed using reconstruction techniques.