169 results about "Patient positioning" patented technology

A computer-implemented method for operating a magnetic resonance device (47), comprising a main magnet unit (26) with a particularly cylindrical patient receptacle (25), wherein a field of view (29) of the magnetic resonance device (47) is located within the patient receptacle (25), which field of view is defined by the homogeneity of a main magnetic field generated by a main magnet (48) of the main magnet unit (26), and a patient bed (2) for positioning the patient (19) in the patient receptacle (25) is movable along a longitudinal direction (3) of the patient bed (2), wherein at least one local coil arrangement (1) with at least one coil element (4) for measuring magnetic resonance data is freely positionable on the patient bed (2) and / or a patient (19) to be measured, at least with respect to the longitudinal direction (3), the method comprising the following steps: - with the patient bed (2) located at least partially outside the patient support (25) and after positioning the local coil arrangement (1), determining position information that describes the position of the local coil arrangement (1) on the patient bed (2) at least in the longitudinal direction (3) with a measuring means (7), wherein a magnetic field sensor, in particular a Hall sensor (8), installed in the local coil arrangement (1) is used as the measuring means (7), wherein the complete three-dimensional position and the complete three-dimensional orientation of the local coil arrangement (1) are determined as position information by the measuring means (7), and wherein a six-dimensional pose of the local coil arrangement (1) is used to select coil elements (4) to be used in the measurement,wherein coil elements (4) lying in the field of view (29) and / or not overlapping in the physical gradient axes and / or logical gradient axes of the magnetic resonance device (47) are selected for measurement, - determining recording information that describes a positioning of the local coil arrangement (1) relative to the field of view (29), and - automatic positioning of the patient couch (2) in the longitudinal direction (3) at an approach position determined from the position information and the recording information.

The invention discloses a radiotherapy body position fixing temperature control device based on artificial intelligence, and relates to the field of medical equipment.The device comprises a main body supporting layer, a gas channel is arranged in the main body supporting layer, and the gas inlet end and the gas outlet end of the gas channel are connected with a gas flow input module; the heat preservation fixing layer is detachably connected with the main body supporting layer, and a thermoplastic film is arranged between the heat preservation fixing layer and the main body supporting layer to form a binding space for fixing a patient; the adjusting module comprises a detection element and a control element, the detection element is used for detecting current state parameters and transmitting the current state parameters to the control element, the control element is connected with the airflow input module, and the control element intelligently adjusts airflow output by the airflow input module based on the state parameters. Autonomous control of the temperature is achieved through the artificial intelligence technology, and the stability of body position fixing of a patient in the treatment process is ensured.

A system for controlling an operating mode of a patient positioning system, comprising: a patient positioning device; a motion and / or touch sensor arrangement (102); a sensor arrangement having at least one sensor (126) that outputs sensor values; and an evaluation unit (128); wherein the system is operable in different operating modes, comprising at least a standby mode and active modes, the active modes comprising at least a normal operating mode and an incognito mode; and wherein, when the motion and / or touch sensor arrangement (102) detects movement and / or touch of the patient positioning device in standby mode, the evaluation unit (128) checks whether the sensor values ​​have a significant change, and the system switches to an active mode if the check reveals that there is a significant change in the sensor values.

A sheet assembly for positioned a patient includes a base sheet a first handle interface, and a second handle interface. The base sheet defines a first axis extending in a direction parallel to a width of the base sheet and a second axis extending in a direction parallel to a length of the base sheet. The base sheet has a first end on a first side of the first axis and a second end on a second side of the first axis. The first handle interface is positioned on the first end of the base sheet. The first handle interface defines a first opening configured to receive a hand of an operator of the sheet assembly. The second handle interface is positioned on the second end of the base sheet. The second handle interface defines a second opening configured to receive the hand.

The magnetic resonance imaging (MRI) device comprises a magnet unit, a patient table, and a patient position detection device. The magnet unit surrounds a patient acquisition area defined by an inner wall of the magnet unit and includes a whole-body coil. The patient table is movable within the patient acquisition area. The patient position detection device comprises a sensor unit, a determination unit, and a verification unit. The sensor unit is designed to determine the patient's position on the patient table. The determination unit is designed to determine the distance between the patient and the inner wall based on this position information. The verification unit is designed to check the patient's positioning against a distance limit based on this distance.

The utility model relates to the technical field of medical image auxiliary diagnosis equipment, and discloses medical image auxiliary diagnosis equipment which comprises image examination equipment, a base is arranged on one side of the image examination equipment, an examination table is arranged on the top of the base, a first limiting shaft is fixedly connected in the examination table, and a second limiting shaft is fixedly connected in the first limiting shaft. A first limiting groove is formed in the first limiting shaft, wedge-shaped clamping blocks which are symmetrically arranged are slidably connected to the outer wall of the first limiting shaft, second limiting grooves are formed in the wedge-shaped clamping blocks, and a supporting rod is fixedly connected to the top of the first limiting shaft. A first connecting rod drives a V-shaped connecting rod to press downwards, a first clamping plate drives a second clamping plate to bend towards the middle to position the head of a patient, meanwhile, the second clamping plate is pushed to be attached to the head of the patient through tension of a second spring, the effects of automatic positioning and adaptation to different patients are achieved, and the problem that the head of the patient is inconvenient to position is solved; and the convenience of the medical image auxiliary diagnosis equipment is improved.

The invention provides a target focus identification method, system and device based on a medical image, a computer storage medium and a computer program product, and the method comprises the steps: generating an MPR feature vector and a DICOM metadata feature vector which are aligned in dimension based on medical image coding, the MPR feature vector comprises the form and spatial position information of an anatomical structure, and the DICOM metadata feature vector comprises the form and spatial position information of the anatomical structure; the DICOM metadata feature vector comprises scanning parameters, equipment information and patient body position information; the MPR feature vector and the DICOM metadata feature vector are fused through a bidirectional cross attention mechanism, and a comprehensive feature vector containing lesion semantics and space details is generated; and processing the comprehensive feature vector by using a neural network model based on a Transform architecture, and outputting an identification result of the target focus. By adopting the scheme provided by the invention, the complementation of semantic information such as anatomical morphological characteristics and scanning parameters is realized, and the recognition precision of the target focus is improved.

A patient positioning system includes an inflatable patient support device having a width, and a positioning apparatus. The positioning apparatus including a wedge-shaped body, the wedge-shaped body configured to be placed under the inflatable patient support device to support a patient in a desired position, and a tail comprising an elongated piece of material extending from a front end of the wedge-shaped body, wherein a length of the tail is greater than the width of the inflatable patient support device.

The present application relates to the technical field of three-dimensional point cloud registration, and discloses a three-dimensional point cloud registration method and apparatus, a computer device, and a storage medium. The method comprises: acquiring a first source point cloud and a target point cloud; obtaining sub-point clouds on the basis of the center point of a bounding box of the first source point cloud, and selecting a second source point cloud from among the sub-point clouds; determining a third source point cloud on the basis of the distances from vertexes of the second source point cloud to a fitting plane and the second source point cloud; and determining six degrees-of-freedom values on the basis of the third source point cloud and the target point cloud. The deviation values of the patient pose in six degrees of freedom can be calculated on the basis of the first source point cloud and the target point cloud. The automated registration process reduces manual operations by doctors, reduces the workload, reduces the risk of human errors, and improves the accuracy and consistency of positioning. By means of efficient registration and positioning adjustment, the patient positioning time is shortened, the uncomfortable experience caused by maintaining fixed postures for long times is reduced, and the comfort in treatment processes is improved.

A cone beam breast computer tomographic scanning system includes a vertical plane gantry and a patient support subsystem, where the patient support subsystem has a patient support saddle for patient positioning during imaging.

A cone beam breast computed tomography scanning system includes a vertical plane gantry subsystem pivotally connected to a foundation element for ergonomic patient positioning.

The utility model relates to the technical field of medical instruments, and discloses a body position keeping device for patient CT (Computed Tomography) detection, which comprises a bed board, a first cavity is formed in the bed board, the inner side wall of the first cavity is connected with a connecting plate in a sliding manner, and the two ends of the connecting plate are fixedly connected with sliding blocks; a mounting block is fixedly connected to one side of the bed board, a sliding groove is formed in the top of the mounting block, the sliding block is slidably connected to the interior of the sliding groove, and a motor is fixedly connected to the inner bottom wall of the first cavity. According to the body position keeping device for CT detection of the patient, through the arrangement of connecting plates, a motor, a threaded rod, a movable block and a connecting rod, when the body position keeping device is used, firstly, the motor is started to drive the threaded rod to rotate, so that the movable block is driven to move, the angle of the connecting rod is changed, and the two connecting plates are driven to get close; therefore, the two baffles are driven by the sliding blocks to clamp the patient, and the stability of the patient at the side position is guaranteed.

Methods and systems for positioning and positioning a patient for irradiation therapy without fiducial markers. Platform settings including parameters of the patient support platform are obtained. Platform position data is obtained in which a patient is placed on a platform for imaging without fiducial markers, the platform position data including 3D coordinates of the platform relative to an imager coordinate system calibrated to a predefined fixed set of initialized coordinates in a treatment room. Target tissue is imaged with the patient on the platform. A treatment plan is generated based on the target tissue imaging. The treatment plan comprises a treatment radiation field of a treatment angle, and the treatment angle comprises a platform positioning parameter. When treatment is initiated, the patient is placed on the platform without fiducial markers according to the platform settings. In accordance with the treatment plan, the platform position data, and a coordinate system transformation of the imager coordinate system to the treatment room coordinate system, the platform is adjusted to position the patient at the placement position in the treatment room such that the target tissue is positioned at the isocenter of the treatment room.

Presented is an invention in which visible light is substituted for damaging radiation, enabling students to learn about radiology through active learning (e.g. by manipulation of a study's subject and seeing, in real time, the resulting changes in the generated image) but without exposure to damaging radiation. The invention also allows student and senior practitioners to practice radiological techniques (e.g. patient positioning, fluoroscopy) without radiation exposure. The invention also allows demonstration of the relationship between a three-dimensional object and its two-dimensional depictions, such as between a machine part and that part's views on a technical drawing.

Provided herein are techniques related to medical imaging and radiotherapy, methods and systems, in particular (but not limited to) methods and systems for monitoring safe movement of a patient positioning system, for validating settings of a patient positioning system, for validating settings of a patient on a patient positioning system, and for monitoring patient position during medical imaging and / or radiotherapy.

A lateral patient positioning system may include a pelvic bolster assembly and a thoracic bolster assembly. Each of the assemblies may be attached to a conventional surgical table frame by the surgical table frame’s longitudinal rails. A plurality of adjustment mechanisms and components are provided to allow for easy and safe manipulation of a patient before and during surgery, including sagittal and / or coronal adjustment of a patient in a lateral position.

This application discloses a position adjustment method, a head-mounted display device, and a radiotherapy system, belonging to the field of medical technology. The method includes: acquiring a first image of a target area of ​​a patient, and generating a three-dimensional surface reference image of the target area based on the first image; after the wearer wears the head-mounted display device, displaying the three-dimensional surface reference image at a preset position on the radiotherapy device, so that the wearer can adjust the patient's position according to the observed actual position of the target area and the three-dimensional surface reference image. In this way, patient positioning can be achieved without the use of laser lights, effectively improving the accuracy of patient positioning and thus improving the subsequent treatment effect using this radiotherapy device.

The application discloses a rotating motion mechanism of a proton treatment patient positioning system, which comprises a supporting assembly, a rotating assembly and an auxiliary function assembly, wherein the supporting assembly comprises a base and a slewing bearing, the inner ring of the slewing bearing is fixed to the base, the rotating assembly is arranged on the top of the supporting assembly and comprises a rotating body, a fixed flange, a gear assembly and a driving part, the bottom of one end of the rotating body is provided with the fixed flange, the fixed flange is connected between the rotating body and the outer ring of the slewing bearing, the driving part is arranged in the rotating body and connected with the gear assembly, the gear assembly is arranged eccentrically in the inner ring and engaged with the inner ring, and the auxiliary function assembly is arranged between the supporting assembly and the rotating assembly. The rotating motion mechanism has the advantages of simple and compact structure, high load capacity, and the ability to realize the rotating motion of the rotating assembly in the proton treatment patient positioning system. Meanwhile, the auxiliary function assembly can determine and / or limit the motion position of the rotating body, thereby improving the motion accuracy and safety performance.

A method for imaging a patient's gastrointestinal tract using a capsule camera and a patient positioning system are disclosed. According to the method, the capsule camera is administered to a patient by swallowing the capsule camera through patient's mouth. For each target examination position selected from a set of examination positions: the patient positioning system is adjusted to a target positioner bed position associated with the target examination position with the patient on the positioner be. Adjusting patient positioning system comprises adjusting the positioner bed to tilt at a tilt angle, and wherein the set of examination positions comprises at least two different tilt angles; and the patient positioning system still is held at the target examination position for a pre-defined period of dwelling time to allow the capsule camera to capture stable pictures. Image data captured by the capsule camera are then collected.

With regard to medical imaging and radiotherapy, but in more detail, the following techniques are provided herein: methods and systems for monitoring the safe movement of a patient positioning system, verifying the settings of a patient positioning system, verifying the patient's position on a patient positioning system, and monitoring the patient's position during medical imaging and / or radiotherapy.

An example imaging system includes a detector array arranged in multiple rings defining an axial field of view (AFOV), a patient table configured to translate a subject along the AFOV, wherein the detector array includes one or more detector modules to acquire emission tomography scan data at a first bed position and at a second bed position, and one or more processors to combine scan data from overlapping scan ranges of the first and second bed positions to generate a combined sensitivity profile across a desired scan range and to reconstruct a diagnostic image using the combined data, wherein the combined sensitivity profile exhibits increased sensitivity in a central section of the overlap relative to sensitivity obtained from a single bed position.

The invention provides a medical flatcar with spine maintaining and anti-seismic functions, and belongs to the technical field of medical instruments, the flatcar absorbs vertical oscillation and horizontal jolt in the transfer process through a multi-stage damping structure (buffer springs, air cushions and buffer pads); pavement pre-judgment and self-adaptive damping adjustment are realized through an intelligent sensing system (a laser ranging sensor / laser obstacle avoidance radar, a triaxial accelerometer and a central controller); an ergonomic protection structure (including a spine fixing system, a protection plate and a back cushion) is matched to guarantee the body position safety of the patient; and the equipment management efficiency is improved through a bottom drawing type storage structure. Transfer jolt is remarkably reduced, the device is particularly suitable for patients with spinal injury, cerebral hemorrhage, organ rupture and the like, head displacement is reduced according to clinical actual measurement, and the discomfort rate of the patients is decreased.

A six-degree-of-freedom proton heavy ion radiotherapy bed comprises a bed plate and a base, a Z-axis rotating module is arranged on the base, an XY-axis overturning module is arranged on the Z-axis rotating module, an XY plane moving module is arranged on the XY-axis overturning module, and the bed plate is arranged on the XY plane moving module; in conclusion, the flexibility and precision of the radiotherapy bed can be remarkably improved, and the system can more accurately position the patient to the optimal treatment position by combining the multi-dimensional adjustment capabilities of rotation, overturning, translation and the like, so that the radiotherapy effect is improved.

According to the endocrine-related disease examination guidance app system and method provided by the invention, based on the analysis of the endocrine disease knowledge graph, the recommended examination items are more targeted, the examination required by the endocrine disease possibly suffered by the patient can be accurately covered, the accuracy of disease diagnosis is improved, the unnecessary examination items are reduced, and the examination efficiency is improved. The medical cost of the patient is reduced. The positioning information of the patient is obtained by calling the positioning function of the mobile phone, and the positioning information and the selected examination item are packaged together and sent to the medical institution adaptation module. The adaptive endocrine examination mechanism is recommended according to the positioning information of the patient, so that the patient can conveniently select a professional adaptive mechanism close to the patient, the trouble that the patient finds a proper examination mechanism is solved, and the medical experience of the patient is improved. And risk assessment is performed on the examination result and a report is generated, so that the patient can know own health condition and potential disease risk in the first time, and further measures can be taken in time by the patient.

The invention discloses a radiotherapy body position fixing plate and a forming method thereof. The method comprises the steps that a body frame plate used for being fixedly arranged on a radiotherapy treatment bed is formed; three spaced positioning parameter selection areas are formed on one side of the body frame plate, and each positioning parameter selection area comprises at least four hollow sub-areas; a positioning parameter display device used for displaying positioning parameters of the body frame plate under the image is formed in each sub-region, and the positioning parameter display device comprises a positioning parameter card capable of displaying positioning parameter information of the body frame plate under the image. According to the radiotherapy body position fixing plate, positioning parameters used when a patient is positioned can be displayed on an image, a treatment plan is prevented from being made again, the treatment positioning error rate is reduced, a therapist can manually modify the specific parameter value of the positioning parameters during positioning, the value can be displayed on a positioning image, and the positioning accuracy is improved. The real positioning parameters of the body position fixing plate used by the current patient can be truly reflected, and the radiotherapy effect is improved.

The invention relates to a spine puncture positioner, and relates to the technical field of medical auxiliary instruments, the spine puncture positioner comprises an operation plate and connecting arc rods symmetrically and rotatably mounted on the operation plate through connecting columns, and the operation plate is symmetrically provided with rotating holes for rotatably mounting the connecting columns; an arc-shaped clamping plate is rotationally installed at the end, away from the operation plate, of the connecting arc rod through a rotating connecting rod, and a control positioning device used for controlling the connecting arc rod to rotate and positioning a puncture point of a patient is arranged on the operation plate. The spinal puncture positioning device has the advantages that medical staff can be assisted in positioning a puncture position when a spinal puncture operation is performed on a patient, and the situation that the precise positioning of the puncture operation is affected due to the fact that the skin of the patient at the puncture positioning position is gathered together can be avoided; meanwhile, the skin at the punctured position can be automatically and accurately disinfected, and waste caused by manual smearing of excessive disinfection liquid is avoided.

Arrangement (1) comprising: - a patient positioning device (9) with a positioning table (35) and a transfer plate (37) for positioning a patient (7), wherein the transfer plate (37) is arranged on the positioning table (35) so as to be movable relative to the positioning table (35) in a longitudinal direction (41) of the transfer plate (37), and - a support device (47) with a support area (49), - wherein the patient positioning device (9) has at least one connecting element (51, 53, 55, 57) for connection with the support device (47), - wherein in an operating state of the arrangement (1) in which the support device (47) is connected to the patient positioning device (9), the support area (49) can be arranged at least temporarily offset next to the transfer plate (37) with respect to a transverse direction (43) which is horizontal and perpendicular to the longitudinal direction (41), wherein the at least one connecting element (51, 53, 55, 57) is arranged on the storage table (35).

Disclosed herein is a method of positioning a patient for radio-therapy treatment using a radiotherapy device. The method comprises determining an identity of a treatment beam that is to be used to treat the patient, determining an offset between a reference location and an isocentre location for the identified treatment beam that is to be used to treat the patient, and changing a spatial relationship between the patient and at least a part of the radiotherapy device, according to the determined offset.

A system and method for a lidar guided patient positioning are described. An example imaging system includes a gantry having a bore, a table to move a subject relative to the bore, a radiation source mounted on the gantry and to emit an X-ray beam, and a detector to detect the X-ray beam. The system further includes a light detection and ranging (LiDAR) scanning system to acquire data of the subject. The system further includes processing circuitry to process the LiDAR data to generate a 3D point cloud representing a topography of the subject, estimate a center of a region of interest of the subject, calculate an offset of the center of the region of interest relative to an isocenter of the gantry, and adjust a height of the table based on the offset to align the center of the region of interest with the isocenter of the gantry.

The application provides a kind of image positioning sticker marking method based on iodine-gallium complex chelate, through chelation reaction to prepare excellent stability iodine-gallium complex developer, non-woven fabric substrate is modified by chitosan coating, combined with screen printing process to prepare high-precision positioning sticker, and establish standardized clinical marking process. The method uses iodine-gallium double element synergistic development mechanism, so that the CT value of the marking area is 350-400HU, the contrast of the surrounding tissue is improved by 40%, the development clarity retention rate is more than 92% after 48 hours of sticking, the positioning error is stable within 0.3mm, solves the pain points of traditional marking easy diffusion and poor adhesion. The application has excellent biocompatibility, the skin allergy rate is only 0.8%, the single patient positioning operation time is shortened to 5-10 minutes, the production cost is reduced by 40%, can be widely used in precise medical positioning scenes such as tumor radiotherapy and interventional surgery, has significant clinical popularization value.