172 results about "Fluoroscopy" patented technology

A robotic surgical system includes a robotic manipulator configured to perform surgical procedures under direct surgeon control. A surgical camera system captures real-time intraoperative video. An external imaging interface receives multimodal imaging data, including preoperative and intraoperative data from at least one of magnetic resonance imaging (MRI), computed tomography (CT), ultrasound, and fluoroscopy. An artificial intelligence (AI module has a trained neural network and a deep learning model trained on multi-institutional annotated surgical datasets, The AI module is configured to execute one or more of: fuse acquired video and imaging data into temporally and spatially coherent anatomical visualizations; generate continuously updating overlays aligned with the surgical field, with segmented anatomical features; projected tissue boundaries, proximity indicators for instruments, and predictive deformation trends; provide dynamic predictive trend visualization indicating zones of future anatomical complexity or risk; register and align preoperative imaging data with intraoperative imaging data in real time; adapt overlay presentation in response to tissue deformation without actuating the robotic manipulate or; and passively augment visual feedback without initiating any autonomous actuation of surgical instruments.

The invention relates to the technical field of medical image processing, in particular to an artificial intelligence assisted intraoperative imaging method, which comprises the following steps: S1, preprocessing a multi-modal medical image, segmenting and recognizing an anatomical structure by a deep learning model according to the preprocessed image, measuring anatomical parameters based on a segmentation and recognition result, and generating an operation planning path by artificial intelligence according to the anatomical parameters; s2, collecting a C-shaped arm perspective image stream in real time, dynamically tracking space coordinates of a surgical instrument, comparing the position of the instrument with a surgical planned path, calculating offset, and when the offset is greater than an offset threshold, outputting correction guidance through an AR superposition layer; and S3, monitoring an image quality index in real time, dynamically adjusting exposure parameters through a reinforcement learning model, and when a metal implant is detected, switching a dual-energy-spectrum mode and executing an artifact suppression algorithm. According to the method, preoperative precise planning and intraoperative assistance are realized through artificial intelligence, the problems of poor image quality and high radiation risk are solved through technical optimization, and the method has important clinical application value.

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.

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.

A catheter system can include a tubular body, and at least one of a targeting system coupled to the tubular body, an expandable member, or a fluid injection port. A method of identifying a bifurcation can include inserting a catheter system into a first vessel, positioning the catheter system at a first location, expanding an expandable member to occlude the first vessel, delivering contrast material so the contrast material pooling proximate to the expandable member, and reviewing a shape of the contrast material in the first vessel under fluoroscopy.

A catheter system can include a tubular body, and at least one of a targeting system coupled to the tubular body, an expandable member, or a fluid injection port. A method of identifying a bifurcation can include inserting a catheter system into a first vessel, positioning the catheter system at a first location, expanding an expandable member to occlude the first vessel, delivering contrast material so the contrast material pooling proximate to the expandable member, and reviewing a shape of the contrast material in the first vessel under fluoroscopy.

The utility model discloses a bed body foot support of a digital fluoroscopy X-ray machine, which comprises a bottom plate, an examination bed arranged at the top of the bottom plate and a connecting frame arranged at one end of the examination bed, and further comprises a mounting plate arranged at one end of the connecting frame, a sliding opening is formed in the outer wall of the top of the mounting plate, and a sliding block is connected to the inner wall of the sliding opening in a sliding mode. According to the bed body foot support of the digital fluoroscopy X-ray machine, a patient can put two heels on the two foot supporting assemblies respectively, the fixing plate can be driven to ascend by a certain height through the lifting assembly when the legs need to be lifted, then the foot supporting assemblies and the feet of the patient are driven to ascend, the patient is helped to lift the legs, and therefore the patient can conveniently lift the legs. When the foot needs to be rotated to adjust the position of the ankle joint, the foot supporting assembly can be driven to rotate by a certain angle through the adjusting assembly, then the foot of a patient is driven to rotate by a certain angle, the position of the ankle joint is adjusted, the adjusted posture can be stably kept, and the shooting effect is ensured.

A prosthetic heart valve can include a frame, a valvular structure coupled to the frame, a commissure formed by the valvular structure, and a radiopaque marker fixedly attached to the commissure. The frame can include a plurality of struts that form a plurality of commissure windows spaced circumferentially apart around the frame. The commissure can be secured to a respective one of the plurality of commissure windows. In some examples, the radiopaque marker can include a central longitudinal axis, and the radiopaque marker can be asymmetric about the central longitudinal axis. In some examples, the radiopaque marker can help a user better determine a circumferential position or orientation of the prosthetic heart valve under fluoroscopy without having to mount the prosthetic heart valve onto a delivery apparatus in a specific, predetermined orientation.

A catheter system can include a tubular body, and at least one of a targeting system coupled to the tubular body, an expandable member, or a fluid injection port. A method of identifying a bifurcation can include inserting a catheter system into a first vessel, positioning the catheter system at a first location, expanding an expandable member to occlude the first vessel, delivering contrast material so the contrast material pooling proximate to the expandable member, and reviewing a shape of the contrast material in the first vessel under fluoroscopy.

Photoacoustic medical-device navigation systems and methods provide alternatives to those incorporating fluoroscopy for medical-device navigation in patient bodies. A medical-device navigation system can include an optical-fiber stylet, ultrasound transducers, and a console. The stylet can transmit light to an instant location of a distal tip of an elongate medical device in a patient's body and, thereby, irradiate endogenous chromophores to generate ultrasound-frequency photoacoustic pressure waves therefrom. The ultrasound transducers can detect ultrasound signals corresponding to the photoacoustic pressure waves. The console can instantiate medical-device navigation processes for navigating the elongate medical device via the stylet as the elongate medical device is advanced to the target location in the patient's body. The medical-device navigation processes can include acquiring ultrasound-signal data from the ultrasound transducers, reconstructing images from the ultrasound-signal data, and displaying reconstructed images on a display for navigating the elongate medical device to the target location in the patient's body.

Systems and methods for a robotic endoscopy system are provided. The method comprises: (a) receiving instruction to present, at a graphical display, one or both of: one or more tomosynthesis reconstructions or one or more augmented fluoroscopic overlays; and (b) in response to receiving the instruction, causing the graphical display to present one or both of the tomosynthesis reconstructions or the augmented fluoroscopic overlays.

The invention provides a combined arm of a traction bed, and belongs to the field of medical supports. Comprising a first fixing rod, a second fixing rod, a first support and a second support, a rotating seat is arranged between the first fixing rod and the second fixing rod, a clamping assembly is arranged on the lower side of the second fixing rod and comprises a movable rod fixedly connected with the lower end of the first fixing rod, and a movable plate is slidably connected to the outer surface of the movable rod; the outer surface of the movable rod is in threaded connection with a rotating cover, and the outer surface of the movable plate is fixedly connected with a first bag body. By arranging the limiting assembly, an affected limb is lifted and supported through the bracket during an operation, the workload of manual lifting of medical staff can be effectively reduced, so that the labor cost in the operation process can be reduced to a certain extent, meanwhile, the bracket can make a wound of a patient fully exposed so as to facilitate pre-operation disinfection treatment, and the operation is convenient. And when C-arm perspective irradiation is carried out during an operation, the risk of occupational exposure of medical staff can be effectively reduced.

The invention relates to the technical field of image processing, and discloses an interventional navigation method and system based on multi-modal image fusion. The method comprises the following steps: segmenting CT angiography data to form a three-dimensional vascular skeleton model, calculating MRI perfusion data to generate a vascular flow velocity field, and constructing a vascular geometric constraint matrix; performing diffusion reconstruction on the constraint matrix and the instrument position information, and outputting an instrument motion prediction track; estimating the postures of the tips of the X-ray perspective imaging instruments to form instrument-blood vessel space correlation features; safety navigation constraint parameters are generated through distance field calculation; and generating a real-time navigation instruction containing a propulsion distance and a rotation angle by adopting a path planning algorithm. The technical problems that in a traditional interventional navigation system, multi-modal image data fusion is insufficient, instrument motion prediction is inaccurate, and a safety constraint mechanism is incomplete are solved, and the precision, safety and real-time performance of interventional operation navigation are improved.

The invention discloses a wide-neck aneurysm mechanical release embolism spring ring device and a using method thereof, and belongs to the technical field of medical instruments. The device comprises a catheter, a catheter channel is arranged on the inner wall of the catheter, and a thrombus removal mechanism and a protection mechanism are arranged in the channel. The bolt releasing mechanism realizes quick bolt releasing of the spring ring through cooperation of a sliding shaft, a clamping plate and other parts; the protection mechanism can prevent the spring ring from being popped up accidentally due to the fact that the releasing wire falls accidentally. When in use, the catheter is pushed to a cerebrovascular segment where an aneurysm is located under the guidance of X-ray fluoroscopy and a contrast agent, a proper spring ring is selected and pushed to a preset position, the spring ring is released through a series of operations to complete embolism, and the catheter is withdrawn after the position is determined to be stable. The problems that when a spring ring is released through traditional electrolytic fusing, the position is difficult to adjust accurately, the packing effect is affected, and the recurrence risk is increased are solved, the spring ring can be released rapidly and accurately, an operation can be completed in time, and the operation risk is reduced.

The invention relates to the technical field of radiation protection devices, in particular to a radiation protection device capable of moving along with a bulb tube under perspective of a C-shaped arm, which comprises an assembly ring, two adjusting screw rods are screwed around the outer side of the assembly ring, connecting blocks are movably connected around the lower end of the assembly ring, and a plurality of connecting plates are arranged on the lower sides of the connecting blocks. The multiple connecting plates are movably connected with one another, two third mounting holes are formed in the lower end of each connecting block, and two second mounting rings are fixedly connected to the upper ends of the connecting plates; the assembling ring is connected to the outer side of the bulb tube in a sleeving mode, a square structure formed by the multiple connecting plates and the L-shaped connecting plates is arranged on the outer side of the bulb tube, and when X-ray irradiation is carried out, the first unfolding mechanism and the second unfolding mechanism are pushed to move through the two-way micro air pump, so that the radiation protection cloth and the L-shaped radiation protection cloth are synchronously unfolded outwards; soft rays are effectively blocked, and it is ensured that medical staff cannot be exposed in radiation.

The present invention enables more efficient positioning control of a bed on which a patient is placed. A bed position control device that controls a position of a bed on which a patient is placed includes: an image acquisition unit that acquires a fluoroscopic X-ray image obtained by imaging the patient by X-ray fluoroscopy; a pseudo fluoroscopic X-ray image acquisition unit that acquires a pseudo fluoroscopic X-ray image created from a three-dimensional image of the patient; a second region-of-interest creation unit that, from a first region-of-interest set in the pseudo fluoroscopic X-ray image so as to include a region of a target structure, creates a second region-of-interest including the region of the target structure in accordance with a positional deviation of the patient; and an image matching unit that matches an image in the second region-of-interest in the pseudo fluoroscopic X-ray image with an image in the second region-of-interest in the fluoroscopic X-ray image, determines a position of the bed necessary for aligning the position of the patient in the fluoroscopic X-ray image, and moves the bed to the determined position of the bed.

This invention provides a detachable, interchangeable imaging diagnostic device that allows for the use of various sizes of scopes, enabling easy image diagnosis of various affected areas. [Solution] The interchangeable imaging diagnostic device comprises a scope module including a fluoroscopy tube 110, a scope body 120 surrounding the rear of the fluoroscopy tube, an LED 130 providing light into the fluoroscopy tube, a heat sink 140, and an LED connection jack 150 protruding from the rear surface; a main body including a focus lens 210 for observing the condition of the affected area through the fluoroscopy tube, an adjustment lever 220 for magnifying or reducing the condition of the affected area as seen by the focus lens, a camera 230 for saving images of the body cavity, and an imaging trigger 240 for capturing images of the captured images. The main body has an LED power jack into which the LED connection jack is inserted and a coupling groove into which the rear end of the fluoroscopy tube is inserted, and is characterized by a structure that allows for the selection of scope modules with different fluoroscopy tube sizes and their detachable connection to the main body.

Disclosed herein are spinal fixtures, a robotic system including the spinal fixtures, and related methods for performing spinal procedures including fixing and tracking fixture devices to register patient anatomy in a three-dimensional tracking space.

The invention relates to the technical field of intervertebral foramen endoscope operation washing and drainage, in particular to an intervertebral foramen endoscope lesion washing and drainage device which comprises a drainage tube body, a liquid inlet groove is formed in the outer side of the top of the drainage tube body, a washing guide tube body is arranged in the center of the interior of the drainage tube body, and a washing hole is formed in the curved surface of the top end of the drainage tube body. A protective thin tube is arranged on the outer surface of the drainage tube body, a lead wire is installed in the protective thin tube, a connecting rod is fixedly installed at the bottom end of the lead wire, and a through hole is formed in the connecting rod. According to the focus flushing and drainage device under the foramen intervertebrale endoscope, the positioning accuracy is improved through built-in lead wire development, the lead wire in the protection thin tube is subjected to whole-process development in the operation, the top end position of the drainage tube body is directly confirmed through X-ray fluoroscopy, and the risk of insufficient drainage or mistaken injury caused by a positioning blind area is eliminated; and the protection thin tube and the protection thin tube are located above the top end point of the drainage tube body, so that the accuracy of the overall position of development is improved.

The invention discloses a radiation protection device capable of moving along with a bulb tube under perspective of a C-shaped arm, which belongs to the field of medical instruments and comprises a bed body, a C-shaped arm frame, a bulb tube part and an image acquisition part, and the bulb tube part and the image acquisition part are respectively fixed at two ends of the C-shaped arm frame; the anti-radiation bed further comprises an anti-radiation cover body, one end of the anti-radiation cover body is fixedly connected to the outer portion of the bulb tube part in a sleeving mode, and the other end of the anti-radiation cover body is fixedly connected to the lower end of the bed body. The anti-radiation bed is provided with the anti-radiation cover body, one end of the anti-radiation cover body is mounted at the bottom of the bed body, and the other end of the anti-radiation cover body is mounted outside the bulb tube, so that a flexible connection channel is formed; no matter how the bulb tube swings back and forth or left and right, the radiation-proof cover body can stretch and deform along with the bulb tube, the radiation-proof cover body is like a protective shield which always follows a hand, and most of primary scattered rays are limited in the radiation-proof cover body when being just generated, so that the environmental radiation background value in the operating room is remarkably reduced, and the radiation-proof effect of the operating room is improved. Particularly, the lower limbs of a doctor standing close to the operating bed are protected from being hit by lateral scattering.

The utility model discloses an in-vitro sighting device for femoral trochanter fracture, and relates to the technical field of fracture surgical instruments. Comprising a matching frame, an extension structure, a guide cylinder and a developing needle, the matching frame is U-shaped, the corner of the matching frame is of a right-angle structure, the opening of the matching frame is placed towards one of two sides, a matching hole is formed in a middle plate between two side plates of the matching frame, the extension structure is arranged on the upper side of the matching frame, and the guide cylinder is arranged on the extension structure. The extending structure extends in the direction away from the matching frame, a guide cylinder is arranged on the extending structure and is arranged in the opening direction of the matching frame, a sliding hole is formed in the central axis of the guide cylinder, and a developing needle is slidably connected into the sliding hole of the guide cylinder; through cooperation of the matching frame and the sighting device and the height of the extension structure, the developing needle in the guide cylinder is higher than the front side of the thigh and corresponds to the position of the guide needle to be placed through the sighting device, the position of the guide needle is prompted in a perspective mode, and damage to a patient caused by wrong position and repeated placement of the guide needle is avoided.

Described herein are systems, methods, and apparatuses associated with using deep learning techniques to denoise medical images, such as fluoroscopy images. A first artificial neural network (ANN) is trained to denoise input medical images according to a provided target noise level. The training of the first ANN is performed by pairing noisy input images with target denoised images that include different noise levels. During different training iterations, these target denoised images are generated using a second ANN as an intermediate output of the second ANN. As such, the first ANN can learn to perform the denoising task in an unsupervised manner without requiring noise-free training images as a gold standard.

The invention discloses a preparation process, an oak barrel and an application of an oak barrel. The preparation process comprises selecting oak raw material and cutting it into oak boards; performing multispectral imaging scanning and X-ray fluoroscopy on each oak board, constructing a 3D model according to the multispectral imaging and X-ray fluoroscopy results, and then testing the density, moisture content and chemical composition content of each oak board; classifying the oak boards according to the test results according to the density, moisture content and chemical composition content within 5%; and processing different types of oak boards into oak barrels respectively. The preparation process of the invention selects specific oak raw material and classifies the oak boards according to a specific classification method, so that oak boards of the same type have similar quality, and thus the whiskey brewed in oak barrels prepared from oak boards of the same type has the same aroma and flavor. In addition, the preparation process can also determine which wood grade is higher or lower, so that different grades of whiskey can be manufactured.

The invention discloses a dynamic tracheal stenosis diagnosis system based on dynamic DR combined with deep learning, which relates to the technical field related to medical image intelligent analysis and comprises a dynamic DR imaging module, a time sequence data processing module, a deep learning analysis module and a visual report module. The invention further discloses a tracheal stenosis dynamic diagnosis method based on dynamic DR combined with deep learning. The tracheal stenosis dynamic diagnosis method comprises the steps of dynamic DR imaging, data processing, deep learning analysis and report generation. According to the method, 3D convolution and time sequence modeling are fused, real-time segmentation and tracking of a dynamic image are achieved, the performance is superior to that of a traditional 2DCNN or an independent time sequence model, data collection is optimized through a pulse perspective mode, respiratory gating and motion correction are combined, double challenges of dynamic image quality and algorithm robustness are solved, key data in a structured report can be filed in batches, and real-time segmentation and tracking of the dynamic image are achieved. A standardized database is provided for tracheal stenosis cause distribution, a thermodynamic diagram and a curve graph generated by the system provide high-quality annotation data, and iterative optimization of an algorithm is promoted.

The application relates to the technical field of image processing, and discloses an interventional navigation method and system based on multi-modal image fusion. The method comprises the following steps: CT angiography data is segmented to form a three-dimensional vascular skeleton model, MRI perfusion data is calculated to generate a vascular flow field, and a vascular geometric constraint matrix is constructed; the constraint matrix and instrument position information are diffused and reconstructed, and an instrument motion prediction trajectory is output; an X-ray fluoroscopy image instrument tip posture is estimated, and instrument-vascular spatial correlation features are formed; safe navigation constraint parameters are calculated and generated through a distance field; and a path planning algorithm is used to generate real-time navigation instructions containing a pushing distance and a rotation angle. The application solves the technical problems of insufficient multi-modal image data fusion, inaccurate instrument motion prediction and imperfect safety constraint mechanism in a traditional interventional navigation system, and improves the precision, safety and real-time performance of interventional surgery navigation.

To provide a medical stent and a stent delivery device capable of easily grasping the position of a distal end under radioscopy.SOLUTION: A medical stent includes a main body having a tubular member and a reinforcing member wound in a spiral shape and embedded between an inner peripheral surface and an outer peripheral surface of the tubular member, a first locking member having a first fixed end fixed to a distal end side of the main body and a first free end located outside the tubular member and extending from the first fixed end to the first free end, a second fixed end fixed to a proximal end side of the main body, and a second free end located outside the tubular member. A second locking member extending from a second fixed end to a second free end, The main body has a first region, a second region, and a third region in which winding pitches of the reinforcing material are different from each other, the first region is a region located between the distal end of the main body and the first fixed end, the second region is a region in which the reinforcing material is wound at a winding pitch larger than that of the first region, and the third region is a region in which the reinforcing material is wound at a winding pitch larger than that of the second region.SELECTED DRAWING: Figure 3

The present application relates to a TAVR teaching model based on blood flow simulation and multi-modal image fusion and use method. The model comprises a simulated thoracic and abdominal cavity with a built-in heart wave beat simulation part that drives fluid to generate pulsatile blood flow, a simulated thoracic and abdominal body with pre-set vascular access, a bionic heart assembly with structures such as a ventricular cavity, a pathological valve module that can be detachably fitted to the aortic valve ring and contains a pressure sensor array and simulated calcification, a coronary circulation monitoring module that monitors the perfusion state of the coronary artery opening, a virtual fluoroscopy positioning module that generates real-time fluoroscopy images, and a central control console that electrically cooperates with each module. The scheme simulates the tactile sensation of calcification through the pathological valve module, the heart wave beat simulation part reproduces the physiological pressure difference with a closed loop blood flow, realizes image navigation training with non-radiation virtual fluoroscopy, integrates real-time simulation of complications with coronary monitoring and annulus pressure sensing, and solves the problems of existing models such as distorted hand feeling, inaccurate dynamics, dependence on radiation, and lack of complication training.

The present invention provides a radiation shield and radiation protective eyewear that can reduce the amount of X-rays absorbed by the lens of the eye of the operator performing the X-ray fluoroscopy examination during the examination process. [Solution] The radiation shield 100 of the present invention is a radiation shield to be attached to eyeglasses, and comprises a flexible sheet 101 containing a material that absorbs radiation, a shape-retaining member 102 that holds the sheet 101 in a predetermined three-dimensional shape, and a fixing means 103 that allows the sheet 101 to be attached and fixed to one temple of the eyeglasses.