23 results about "Interventional imaging" patented technology

For interventional surgery, robot-assisted operation and image guidance are urgently required clinically. However, due to limitation of size, magnetic component interference and the like, tracking and positioning of magnetic imaging catheters in IVUS and OCT forms are difficult problems. The interventional imaging catheter, the six-degree-of-freedom positioning method, the six-degree-of-freedom positioning system, the six-degree-of-freedom positioning equipment and the medium are different from a magnetic positioning method of a transmission embedded sensor, and the interventional imaging catheter is compatible with a magnetic part in a permanent magnet rotor form. Meanwhile, in cooperation with a magnetic positioning search strategy for linearly solving an initial value, positioning of the catheter can be rapidly achieved.

The utility model relates to the related technical field of interventional radiography, in particular to a multifunctional connector operation T tube for interventional radiography, which comprises an interventional slim tube, a pushing block, a vent hole, an air outlet tube and an air bag, the inner side surface of the interventional tube is connected with the interventional slim tube, and the outer side surface of the interventional slim tube is provided with the pushing block. According to the multifunctional connector surgical T-tube for interventional radiography, the inflation mechanism is usually used together with a balloon, blood vessels or other channels can be expanded by inflating the instrument so that interventional treatment can be better carried out, the T-tube is particularly useful for treating the situation of blood vessel stenosis or blockage, the stability of the T-tube or a catheter can be improved by using the inflation mechanism, and the T-tube or the catheter can be conveniently used. It is helpful to ensure its accurate positioning in a target area, which is particularly important for interventional procedures requiring accurate positioning and manipulation, providing additional support to maintain the patency of the blood vessel or channel, which may be beneficial in treating vascular stenosis or repairing vascular walls.

This invention relates to an invasive / interventional device or probe, comprising a control handle and an insertion tube operably connected to an imaging system. The control handle includes: a body; a motion control mechanism at least partially disposed within the body and having one or more control elements disposed on the body; one or more gears rotatably disposed within the body and operably connected to the control elements; and one or more cables engaging the gears, the cables extending outward from the body and adapted to engage with the tip of an interventional medical device. The control handle also includes a motion locking mechanism at least partially disposed within the body, the motion locking mechanism having one or more brake levers biased to engage with the gears, and a release switch engaging the brake levers to selectively position the brake levers to engage or disengage with the gears.

The invention relates to the technical field of medical instruments, in particular to a piezoelectric driving miniature optical probe for cerebrovascular interventional imaging, which comprises a glass tube base body, a single piezoelectric ceramic piece and the like, and is characterized in that the glass tube base body is of a hollow cylindrical structure, and an inclined groove is formed in the axial center of the glass tube base body; the single piezoelectric ceramic piece is fixed on the outer side of the glass tube base body. Through a hollow rod type stator structure composed of a single piezoelectric ceramic piece and a glass tube base body with a 10-degree inclined groove, mode conversion from longitudinal vibration to longitudinal-torsional coupling vibration is achieved, an elliptical motion track is formed at the position of a miniature magnetic ring at the front end of the stator, 360-degree optical scanning is achieved through friction driving of a rotor, and the mechanical property of the motor is improved. Compared with a traditional far-end miniature probe with the diameter usually larger than 1.5 mm, the whole outer diameter of the probe is reduced to 0.4 mm, and smooth navigation and passing in tortuous and narrow brain middle artery (the diameter is usually smaller than 0.5 mm) are easier.

The application relates to the technical field of medical image processing, and particularly discloses a cavity image real-time lesion recognition and boundary segmentation system. A cross-sectional image sequence in a cavity is acquired through an interventional imaging catheter, and after shared features are extracted by using a deep network, pixel-level tissue boundary segmentation and overall lesion property recognition are synchronously performed. The core lies in that a dynamic gradient coordination mechanism is introduced, gradient direction conflicts between the segmentation and recognition double tasks are detected and resolved in real time during the training process, and adaptive projection transformation based on the task convergence state is used to fuse the gradients, so that the shared network can learn balanced features which are optimal for both tasks; the method realizes end-to-end real-time processing from image input to synchronous output of the segmentation and recognition results, and significantly improves the synergy, accuracy of lesion analysis and real-time auxiliary efficiency of clinical operation navigation.

Systems and methods for controlling a high voltage generator of an interventional imaging system are provided herein. In one example, a method for an interventional imaging system includes generating a plurality of X-ray pulses with an X-ray tube of the interventional imaging system, each X-ray pulse generated by supplying voltage to the X-ray tube from a high voltage generator and opening a gridding electrode of the X-ray tube, and turning off the high voltage generator between each X-ray pulse. In some examples, the high voltage generator may be reactivated prior to each X-ray pulse according to a command signal that anticipates an actual start time of each X-ray pulse.

The invention provides an X-ray imaging apparatus and a method for detecting the position of a device using an X-ray image, which can reduce the influence of non-periodic motion generated in an interventional imaging process and monitor the three-dimensional position of the device with high precision. In interventional imaging, in order to monitor the position of a device, the position of the device is calculated by finding a combination of X-ray images in which the influence of body movement is minimized from among a plurality of X-ray images acquired at different imaging positions. At this time, the orientation of feature points extracted from the plurality of X-ray images is analyzed, the orientation of body movement occurring during the imaging process is classified, a combination of X-ray images for calculating the position of the device is selected on the basis of the classification result, and the position of the device is calculated.

Interventional imaging system comprising an imaging device (3) for recording interventional data of a body, at least two position markers (12, 13) recordable with the imaging device (3) for marking an interventional instrument (11), a display device (8) for displaying recorded interventional data and position markers (12, 13), a navigation device (6) connected to the display device (8) for loading pre-interventional data of the body, including an intervention site (14) of the body, and for mutually registering the pre-interventional data with the interventional data, wherein the navigation device (6) is configured to display the registered pre-interventional data, including the intervention site (14), together with the position markers (12, 13) on the display device. wherein the position markers (12, 13) are designed and can be arranged on an elongated intervention instrument (11) guided by a robot arm (10) such that they mark positions along the longitudinal axis of the intervention instrument (11) such that when the position markers (12, 13) on the display device (8) are aligned with each other and with the intervention site (14), the longitudinal axis of the intervention instrument (11) is aligned with the intervention site (14), characterized by that the navigation device (6) automatically controls the robot arm (10) until the position markers (12, 13) are aligned with each other and with the intervention site (14).

An operation handle (10) includes a handle main body (100); an operation assembly (200) configured to be rotatably connected to the handle main body (100); a first transmission assembly (300) connected with the operation assembly (200) through a first transmission cooperation, and the first transmission assembly (300) is disposed in the handle main body (100); a second transmission assembly (400) connected with the first transmission assembly (300) through a second transmission cooperation. The operation handle (10) is disposed at an end of the insertion tube (20) away from the bending portion (30), and the insertion tube (20) is internally disposed with a pull wire (50) connected with the second transmission assembly (400).

Systems and methods for controlling a high voltage generator (322) of an interventional imaging system are provided herein. In one example, a method for an interventional imaging system includes generating a plurality of X-ray pulses with an X-ray tube of the interventional imaging system, each X-ray pulse generated by supplying (404) a voltage to the X-ray tube from a high voltage generator and opening (406) a gridded electrode of the X-ray tube; and disconnecting (408) the high voltage generator between each X-ray pulse. In some examples, the high voltage generator may be reactivated prior to each X-ray pulse according to a command signal that is earlier than the actual start time of each X-ray pulse.

Vascular intervention imaging devices such as IVUS and OCT can provide clear blood vessel cross section images, and the clinical value of the vascular intervention imaging devices is widely accepted. However, an existing endovascular intervention imaging device is generally assumed to rotate uniformly, and NURD artifacts are caused due to the fact that the rotation is not consistent with the actual situation. The invention provides an interventional imaging catheter and an imaging distortion correction method, device, equipment and medium thereof. The method comprises a real-time sound field scanning angle detection method based on a Hall magnetic field sensor array and an image reconstruction strategy based on a sound field scanning angle and interpolation compensation. According to the scheme provided by the invention, the imaging distortion of the interventional imaging device can be solved, and the imaging quality can be improved.

The invention discloses an acoustic intervention image platform commonly used for a natural orifice and a vascular system. In the platform, a signal processing reconstruction and man-machine interaction module transmits an in-vivo intervention control instruction; the multi-channel multi-mode dynamic electromechanical module provides power and transmits rotation torque; the multi-channel multi-mode dynamic electromechanical module adjusts the form of the multifunctional catheter module through dynamic electromechanical control. The catheter body is of a multi-section flexible structure, moves based on power, and changes in form under the control of the dynamic electromechanical unit. A transducer of the in-vivo intervention acoustic sensing module rotates under the action of the rotation torque and detects the current in-vivo environment to generate a detection signal; the signal processing reconstruction and man-machine interaction module carries out signal processing and visual reconstruction according to a detection signal provided by the in-vivo intervention acoustic sensing module to generate acoustic image data, and carries out visual display. The platform has strong scene versatility, supports the intervention in the natural orifice, and is also suitable for the intervention in the vascular system.

Various methods and systems for medical imaging are provided. In one embodiment, a method for an interventional imaging procedure includes: identifying a medical device during insertion of the medical device into a subject based on real-time images of the insertion; inferring a trajectory of the medical device during the insertion in real-time based on the real-time images of the insertion; and displaying the inferred trajectory of the medical device on the real-time images.

To provide, in various embodiments, systems and methods to assist or guide an arthroscopic surgery or other surgical procedure e.g., surgery of the shoulder, knee or hip.SOLUTION: The method comprises steps of receiving an image from an interventional imaging device, identifying a feature in the image using an image recognition algorithm, overlaying the features on a video feed on a display device, and making recommendations or suggestions to an operator based on the identified feature in the image.SELECTED DRAWING: Figure 1

Various embodiments of the present disclosure encompass a visual image sequence controller (40) for controlling an augmentation of a visual imaging sequence acquisition of an interventional imaging sequence in a rendered augmented view of an image-guided intervention by an augmented reality device (30). The visual imaging sequence acquisition (42) includes, for each interventional image of the interventional imaging sequence (23), an interactive virtual indicator of a sequence number of a corresponding interventional image within the interventional imaging sequence (23) and an imaging parameter of the imaging modality (20) (e.g., a direction, a rotation and / or an angulation of the imaging modality (20)) during an acquisition of the corresponding interventional image 10 by the imaging modality (20). The controller (40) interfaces with the imaging modality (20) and / or a display (24, 31) responsive to a user interaction with at least one of the interactive virtual indicators.

The invention relates to a medical interventional imaging device (1) for monitoring an interventional procedure, the medical interventional imaging device (1) comprising: a temporary data buffer (10) configured to temporarily store medical interventional fluoroscopic image data; a signal processor (20) configured to detect whether an abnormal state has occurred during the intervention, and configured to record a time at which the abnormal state has occurred; and a persistent data memory (30) configured to persistently store at least part of the medical interventional fluoroscopic image data temporarily stored before and / or at the recorded time in the event that the abnormal state is detected.

Provided is a technique capable of reducing an influence of aperiodic motion that has occurred during interventional imaging and of monitoring a three-dimensional position of a device with high accuracy.In order to monitor a device position in interventional imaging, a combination of X-ray images with a minimum influence of body motion is obtained from a plurality of X-ray images acquired at different imaging positions, and the device position is calculated. In this case, movements of feature points extracted from the plurality of X-ray images are analyzed to classify a movement of body motion that has occurred during imaging, a combination of X-ray images to be used for calculating the device position is selected based on classification results, and the device position is calculated.

The present invention relates to a device for guiding an interventional imaging device. In order to minimize the use of modalities like X-ray or CT, a device (10) for guiding an interventional imaging device is provided. The device comprises a data input (12), a data processor (14) and an output interface (16). The data input is configured to provide first image data as first data from a first imaging device. The first image data comprises a representation of the interventional imaging device inserted within a vessel structure of a subject. The first image data comprises image data relating to a first point in time. The data input is also configured to provide second data relating to a movement of the interventional imaging device. The second data relates to the first point in time and to at least a second point in time. The data processor is configured to estimate a pose of the interventional imaging device in the first image data. The data processor is also configured to track a relative motion of the interventional imaging device based on the second data. The data processor is further configured to compute an updated pose estimate of the interventional imaging device based on the estimated pose and the tracked relative motion. The data processor is furthermore configured to generate an updated indicator of the interventional imaging device based on the computed updated pose estimate. The data processor is also configured to augment the first image data with the updated indicator. The output interface is configured to provide the augmented first image data. In an example, the first imaging device is an X-ray imaging device and the second imaging device is a bronchoscopy imaging device.

The utility model discloses living body imaging equipment which comprises a box body, a living body fluorescence imaging module, an ultrasonic / photoacoustic imaging module, an optical intervention imaging module, a multi-wavelength laser, a fiber optic spectrometer and a control module, the two sides of the box body are each provided with a first opening, and each first opening is provided with a rotary cover or a sliding cover. The living body fluorescence imaging module, the ultrasonic / photoacoustic imaging module and the optical intervention imaging module are arranged in the box body and are respectively connected with the control module through cables penetrating through the first opening; the multi-wavelength laser and the optical fiber spectrometer are positioned on the periphery of the box body; the multi-wavelength laser and the optical fiber spectrometer are connected with the control module. The living body imaging equipment adopts a modular design, each functional module is relatively independent and easy to assemble and maintain, various imaging functions such as living body fluorescence imaging, opto-acoustic / ultrasonic imaging and optical intervention imaging are integrated, and the requirements of different fields can be met.

The invention relates to an intrusive imaging method and device, an imaging system, equipment and a storage medium. The method comprises the following steps: acquiring scanning data of the interventional equipment according to the frequency of a marker on the interventional equipment, and acquiring information of a surrounding environment where the interventional equipment is located according to the center frequency of H protons; the frequency of the marker is different from the center frequency of the H protons; navigating a moving path of the interventional device based on the scanning data and the surrounding environment information; and imaging tissues in a preset range around the intervention equipment according to the center frequency of the H protons under the condition that the intervention equipment moves to the target position. By adopting the method, the intervention equipment can be tracked in real time.

The invention discloses a self-adaptive multi-angle ultrasonic interventional imaging guiding device, and relates to the technical field of ultrasonic imaging, the self-adaptive multi-angle ultrasonic interventional imaging guiding device comprises a base, an electric box is fixedly mounted above the base, a workbench is arranged above the electric box, and a display is mounted on the workbench; a rotating mechanism is arranged in the electric box and comprises an annular ring, the annular ring is rotationally connected to the bottom of the workbench, a connecting rod is fixedly connected to the annular ring, a rotating mechanism is arranged on the connecting rod, a probe is connected to the rotating mechanism, and the rotating mechanism is used for driving the probe to rotate in the circumferential direction. The rotating mechanism is used for driving the probe to rotate up and down, the probe is further provided with a release mechanism, the release mechanism can automatically release a lubricant when the probe is in contact with a patient, the probe is connected with an acoustic lens, and the acoustic lens is in direct contact with the patient. And the imaging operation can be automatically and adaptively completed at multiple angles.

A controller (522) for live annotation of interventional imagery includes a memory (52220) that stores software instructions and a processor (52210) that executes the software instructions. When executed by the processor (52210), the software instructions cause the controller (522) to implement a process that includes receiving (S210) interventional imagery during an intraoperative intervention and automatically analyzing (S220) the interventional imagery for detectable features. The process executed when the processor (52210) executes the software instructions also includes detecting (S230) a detectable feature and determining (S240) at add an annotation to the interventional imagery for the detectable feature. The processor further includes identifying (S250) a location for the annotation as an identified location in the interventional imagery and adding (S260) the annotation to the interventional imagery at the identified location to correspond to the detectable feature. During the intraoperative intervention, a video is output (S270) as video output based on interventional imagery and the annotation, including the annotation overlaid on the interventional imagery at the identified location.

The invention relates to a device for guiding an interventional imaging device. In order to minimize the use of modalities such as X-ray or CT, a device (10) for guiding an interventional imaging device is provided. The device comprises a data input (12), a data processor (14) and an output interface (16). The data input is configured to provide first image data as first data from a first imaging device. The first image data includes a representation of an interventional imaging device inserted within a vascular structure of a subject. The first image data includes image data related to a first point in time. The data input is further configured to provide second data relating to movement of the interventional imaging device. The second data relates to a first point in time and at least a second point in time. The data processor is configured to estimate a pose of an interventional imaging device in the first image data. The data processor is further configured to track relative motion of the interventional imaging device based on the second data. The data processor is further configured to calculate an updated pose estimate of the interventional imaging device based on the estimated pose and the tracked relative motion. The data processor is further configured to generate an updated indicator of the interventional imaging device based on the calculated updated pose estimate. The data processor is further configured to enhance the first image data with the updated indicator. The output interface is configured to provide enhanced first image data. In an example, the first imaging device is an X-ray imaging device, and the second imaging device is a bronchoscopy imaging device.