10 results about "Interventional imaging" patented technology

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.

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).

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 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.