49 results about "Oesophagram" patented technology

The invention discloses an esophageal endoscope image generation system and method based on an improved StyleGAN2-ADA network. The system comprises a generator and a discriminator. The generator comprises a mapping network and a synthesis network; the discriminator comprises a discrimination network, adopts an adaptive discriminator to enhance an ADA mechanism, and dynamically adjusts the image enhancement intensity according to the training accuracy of the discriminator; the method comprises the following steps: S1, fusing multi-vector features of a mapping network; s2, performing a multi-scale feature guided auxiliary classifier method on the discriminant network; s3, in the generative network, calculating a potential spatial distance loss and a comparison loss method; according to the method, the problems of non-uniform sample types and scarcity of data samples in medical images such as esophageal endoscopes are solved.

A system and method are provided for automatically detecting a two-dimensional standard view in a transesophageal ultrasound image. The method includes acquiring a first ultrasound image at a first depth and a first full-plane angle. The first ultrasound image corresponds to a first standard view. The first full-plane angle is an angle other than zero (0) degrees. The method includes adjusting the first full-plane angle to a second full-plane angle of 0 degrees. The method includes acquiring a second ultrasound image at the first depth and the second full-plane angle. The method includes automatically analyzing the second ultrasound image to identify a second standard view corresponding to the second full-plane angle. The method includes automatically determining the first standard view based on the second standard view and the first full-plane angle. The method includes causing a display system to display the first ultrasound image having a first identifier of the first standard view.

Apparatus and methods of determining a cardiac implant size and methods and system for transesophageal echocardiogram guided implantation of left atrial appendage closure device. The apparatus includes an ultrasonic imaging device, at least a processor, and a memory communicatively connected to the at least a processor, wherein the memory contains instructions configuring the at least a processor to using the ultrasonic imaging device collect a plurality of ultrasonic images using a 3D cardiac model generation machine learning model trained on a training dataset including example ultrasonic images correlated with example 3D cardiac models. The processor is further configured to generate a 3D cardiac model based on the plurality of ultrasonic images, generate at least a cardiac measurement based on the 3D cardiac model, determine a cardiac implant size based on the at least a cardiac measurement, and using a display, display to a user the cardiac implant size.

The invention relates to the technical field of esophageal ultrasound, in particular to an integrated esophageal ultrasound system which comprises an operation end, an insertion tube, a bent section, an end, an ultrasound module and an endoscope module. The insertion tube is mounted at the operating end, the bent section is mounted at one end, away from the operating end, of the insertion tube, and the tip is mounted at one end, away from the insertion tube, of the bent section. An ultrasonic probe of the ultrasonic module is installed on the side wall of the end. The lens end of the endoscope module is mounted on the front end wall of the tip. The device can effectively reduce discomfort and stress response of a patient in the esophageal ultrasound process, and is also suitable for the patient with local damage to the inner wall of the esophagus.

The invention relates to the technical field of medical treatment, and discloses a construction method of a left auricle hemodynamics simulation system, which comprises the following core steps of: firstly, acquiring noninvasive transthoracic echocardiography and cardiac enhancement CT (Computed Tomography) image data of a patient; secondly, through an image fusion technology, an accurate left auricle three-dimensional geometric structure model is constructed; and finally, on the basis of the model, carrying out hemodynamic simulation on the left atrium and the left auricle by utilizing a CFD (Computational Fluid Dynamics) technology, and accurately calculating hemodynamic parameters such as the blood flow velocity at the opening of the left auricle. The method has the advantages that the blood flow state of the left atrial appendage is evaluated completely, noninvasively, accurately and quantitatively, and traditional invasive transesophageal ultrasonic examination can be effectively replaced. According to the method, the comfort level of the patient and the examination safety are remarkably improved, operation related risks are avoided, meanwhile, the screening feasibility and efficiency are improved, and the method has important value for clinical management of the stroke risk of the atrial fibrillation patient.

The application relates to the technical field of ultrasonic probe protection devices, and provides a transesophageal ultrasonic probe protection sleeve, which comprises a bite sleeve, a protection sleeve and an elastic constriction ring, a probe hole is arranged through the bite sleeve, the protection sleeve is coaxially arranged in the probe hole, the protection sleeve has opposite open ends and a closed end, the open end is connected with the bite sleeve, the elastic constriction ring is sleeved on the protection sleeve, and the protection sleeve is constrained by the elastic constriction ring to form a sealed coupling agent cavity for accommodating the coupling agent. The utility model discloses the closed end of the protection sleeve is formed into a sealed coupling agent cavity by arranging the elastic constriction ring sleeve on the protection sleeve, the coupling agent cavity can be pre-filled with the coupling agent before use or in production, pollution caused by manual smearing can be avoided during use, the elastic constriction ring is stretched by being extruded by the probe when the protection sleeve is sleeved, the probe can be inserted into the elastic constriction ring at the moment, a sealed cavity is formed between the probe and the closed end of the protection sleeve, the coupling agent is difficult to disperse, and the image acquisition quality is improved.

A system for a bypass-like, transduodenal passage of stomach contents, comprising: a transduodenal bypass unit (BE), itself comprising a transduodenal assembly (TDG) having a tubular film (7) for the passage of stomach contents into the jejunum, and also comprising a transpyloric assembly (TPG) having a hose-like or tubular shaft component (2); a transesophageal positioning unit (PE) having a tubular shaft component (9), the outer diameter of said shaft component being smaller, at least in a distal region, than the inner diameter of the shaft component (2); and an extracorporeally controllable coupling device (KE) which selectively fixates the shaft component (2) to the shaft component (9) for coupling purposes or releases the same for decoupling purposes.

A system and method for transesophageal echocardiogram-guided implantation of a stent are disclosed. The system includes at least a transesophageal echocardiogram (TEE) system, at least a display and at least a computing device configured to receive a plurality of ultrasound images, generate at least a three-dimensional (3D) cardiac model as a function of the plurality of ultrasound images, receive at least a 3D stent model, determine a view label for each of the plurality of ultrasound images and display the at least a 3D cardiac model and the at least a 3D stent model as a function of the view label.

The invention provides a method for screening left atrial appendage thrombus by using a multi-mode ultrasonic technology, and relates to the technical field of medical ultrasonic diagnosis. According to the method for screening the left atrial appendage thrombus by using the multi-mode ultrasonic technology, through a layered screening process of noninvasive primary screening, precise secondary screening and comprehensive judgment, the technical advantages of four complementary modes of transthoracic ultrasound (TTE), transesophageal ultrasound (TEE), ultrasonic contrast (CEUS) and shear wave elastography (SWE) are integrated, primary risk stratification is completed by using noninvasive TTE, and secondary risk stratification is completed by using noninvasive TTE; tEE is combined with CEUS and SWE to achieve multi-dimensional evaluation of the structure, the blood flow and the hardness of the thrombus for high-risk groups, and finally accurate detection and stability evaluation of the thrombus are achieved based on the judgment standard of multi-modal data fusion. According to the method, the detection rate of the left auricle thrombus can be remarkably increased, the unnecessary invasive operation risk is reduced, meanwhile, thrombus stability basis is provided for formulating a clinical anticoagulation treatment scheme, and the method is suitable for conventional screening of thrombus high-risk groups such as atrial fibrillation and the like.

A system for transesophageal echocardiogram-guided implantation of a valve device, the system including at least a transesophageal echocardiogram system configured to detect at least an ultrasound image and at least a computing device configured to receive at least an ultrasound image, generate at least a 3D cardiac model representative of a heart of the patient as a function of at least an ultrasound image wherein the at least an ultrasound image includes a two-dimensional image of the heart of the patient and wherein the 3D cardiac model includes a three dimensional interpolation of the two-dimensional image, determine a valve model datum as a function of the 3D cardiac model, receive at least valve model representative of at least a cardiovascular device to be placed within the patient as a function of the valve model datum and display the at least a 3D cardiac model and at least a valve model.

The following generally relates to systems and methods for automating transesophageal echocardiography (TEE). Some aspects relate to a TEE probe having an ultrasound transducer at its distal end. In some embodiments, if the target is within the field of view (FOV) of the ultrasound transducer, the electron beam directional adjustment of the probe is adjusted; if the target is at the edge of the FOV, both the electron beam directional adjustment and the mechanical joints of the probe are adjusted; and if the target is not within the FOV, only the mechanical joints of the probe are adjusted.

The invention discloses a multiplex PCR (Polymerase Chain Reaction) detection primer group for sheep alimentary canal nematode eggs, a kit and application, and relates to the technical field of molecular detection. The primer group comprises the following three pairs of primers: a haemonchus contortus detection primer, an oesophagus nematode detection primer and a hair head nematode detection primer. The multiplex PCR detection kit comprises the primer group, ultrapure water (ddH2O) and 2 * Rapid Taq Master Mix, wherein the primer group is used for detecting the three pairs of multiplex PCR detection primers, and the ultrapure water (ddH2O) and the 2 * Rapid Taq Master Mix are used. The multiplex PCR detection kit and the detection method have the beneficial effects that the multiplex PCR detection kit and the detection method which can be used for simultaneously detecting eggs of haemonchus contortus, oesophagus nematode and hair head nematode are established, and the multiplex PCR detection kit and the detection method have the characteristics of economy, rapidness, high efficiency, strong specificity and good repeatability and can be applied to rapid detection of infection conditions of main digestive tract nematodes of sheep.

The invention relates to an intelligent intervention system for preventing aspiration in cerebral apoplexy, which belongs to the technical field of medical instruments and comprises a throat fixing and supporting structure, a swallowing power propulsion device, a negative pressure protection module and a central control unit. All the modules form a closed-loop control system through mechanical linkage and data interaction, the fixed supporting structure adopts a memory material framework capable of fitting the physiological curve of the neck, and a flexible myoelectricity sensing network is integrated to collect swallowing muscle group electric signals in real time; the swallowing propelling device realizes dynamic angle adjustment of an esophageal catheter through pneumatic driving, and cooperates with an inner wall structure to enhance the food mass pushing efficiency; the central control unit analyzes electromyographic signals and catheter deformation data through an intelligent algorithm, and synchronously regulates and controls power output and negative pressure intensity. By means of the system, the aspiration risk can be recognized in real time, the reflux path is blocked through cooperative intervention of mechanical propulsion and negative pressure protection, intelligent safety protection in the swallowing process is achieved, and the feeding safety and rehabilitation comfort of a stroke patient are effectively improved.

This invention discloses an esophageal cancer lesion image assessment system, comprising a basic image processing module for generating initial lesion area focus data from input esophageal images; a doctor interaction acquisition module for collecting doctor's correction operations on the initial lesion area focus data; a preference learning module for learning individual preference parameters corresponding to the doctor based on the correction operations; and a personalized output module for calibrating the initial lesion area focus data based on the individual preference parameters and outputting personalized lesion area focus data. This esophageal cancer lesion image assessment system improves the assessment process for esophageal cancer lesions, reducing repetitive correction operations for doctors in handling consecutive cases, decreasing the additional workload as the number of cases increases, and making the initial output more aligned with the doctor's interpretation methods, thereby improving the overall efficiency of the assessment task.

The application discloses a method for calculating the actual stress area range of an ultrasonic probe based on unilateral local stress, and particularly relates to the technical field of a transesophageal ultrasonic probe. The method comprises the following steps: S01, acquiring stress size and stress direction through a plurality of mechanical sensors arranged at the front end of the ultrasonic probe; S02, splitting the stress on the plurality of mechanical sensors into XYZ coordinate components; S03, calculating and combining the XYZ coordinate components to obtain the total force in the XYZ coordinate direction; S04, calculating the distance between the resultant force and each mechanical sensor according to the interval of the known mechanical sensors and the total force in the XYZ coordinate direction of the mechanical sensors, so as to simulate the actual stress area range; and S05, feeding back the actual stress area range to a surgical operating table. The method realizes simulation analysis of the actual stress point of the transesophageal ultrasonic probe through the arrangement of the mechanical sensors, and further gives the doctor contact force feedback in the surgical process.

The invention discloses an invasive ventilator esophageal pressure waveform denoising method. The method comprises the following steps: acquiring an esophageal pressure signal; signal decomposition: decomposing the esophageal pressure signal on different scales, and extracting an approximation coefficient representing low-frequency information of the signal and a detail coefficient representing high-frequency information of the signal; zero setting is carried out on elements with absolute values smaller than a set threshold value in the detail coefficients; and signal reconstruction: performing reconstruction recovery on the signal according to the approximation coefficient and the detail coefficient to obtain a denoised esophageal pressure signal. An esophageal pressure waveform denoising device for an invasive ventilator comprises a sensor for collecting esophageal pressure signal data; the memory is used for receiving and storing esophageal pressure signal data and programs; and the processor is used for executing a program to realize the esophageal pressure waveform denoising method. The innovative esophageal pressure waveform denoising engineering implementation technology is provided on the basis of the wavelet analysis theory and the core thought of the Mallat algorithm, heartbeat interference on the esophageal pressure waveform can be effectively restrained, and meanwhile the basic characteristics of the waveform can be reserved to the maximum extent.

The invention discloses a gastroesophageal reflux AI auxiliary typing method based on esophageal function and morphological characteristics, and belongs to the technical field of gastroesophageal reflux, a first index parameter is acquired, esophageal functional characteristics are evaluated by using a pre-training model according to the first index parameter, and a functional score is calculated; wherein the first index parameter comprises a high-resolution esophageal power index parameter and an esophageal pH-impedance combined index parameter; obtaining esophageal endoscopic image index parameters, and according to the esophageal endoscopic image index parameters, evaluating the severity of the foraminal hernia defect and cardia relaxation by using the deep learning convolutional neural network prediction model, and calculating a morphological score; comprehensively evaluating the severity of the gastroesophageal reflux according to the functional score and the morphological score, and completing the precise typing of the gastroesophageal reflux. The severity of esophageal dysfunction and morphological defect is effectively evaluated based on a comprehensive index evaluation system, and precise typing of gastroesophageal reflux disease is completed.

The utility model discloses an esophageal ultrasonic probe cleaning device which comprises hanging hook supporting rods arranged above the two sides of a cleaning and disinfecting pool which is arranged in a corresponding room of a hospital, is located outside and is provided with a plurality of cavities, and rail rods are arranged at the lower ends of the hanging hook supporting rods. A cleaning suspension structure capable of sliding along the track rod to adjust the suspension position of the track rod is arranged on the track rod; the lower end of the cleaning suspension structure is provided with a limiting basket structure which is used for carrying out layered limiting on a wading part and a non-wading part of an external ultrasonic probe so as to safely clean and disinfect the wading part of the ultrasonic probe. The ultrasonic probe cleaning and disinfecting device has the advantage that the ultrasonic probe can be efficiently and conveniently cleaned and disinfected and meets the sanitary and safe requirements.

The invention discloses a support for an esophageal ultrasonic probe, and relates to the technical field of medical equipment.The key point of the technical scheme is that the support comprises a base (1), a rotating column (2), an outer ring (3), a movable column (7) and a horizontal adjusting assembly (5), a rotating protruding block is arranged at the end, close to the base (1), of the rotating column (2), and the rotating column (2) is rotationally connected with the base (1) through the rotating protruding block; the rotating column (2) is rotationally connected with the outer ring (3), a connecting piece (203) is arranged at the end, away from the base (1), of the rotating column (2), external threads (204) are arranged on the outer surface of the connecting piece (203), the connecting piece (203) is in threaded connection with a movable column (7), a movable groove (9) is formed in the movable column (7), a groove (8) is formed in the outer surface of the movable column (7), and a limiting block (301) is arranged at the position, corresponding to the groove (8), of the outer ring (3). The movable column (7) is fixedly connected with the horizontal adjusting assembly (5). The height of the support can be conveniently adjusted, the horizontal direction can be conveniently adjusted, and workers can conveniently use the support.

The present application belongs to the technical field of gastroscopy, and particularly relates to an auxiliary device for gastroesophageal reflux examination, which comprises an expandable sleeve assembly and a gastroscope assembly. The diameter of the expandable sleeve assembly can be changed. When the diameter of the expandable sleeve assembly is at a minimum value, the diameter of the expandable sleeve assembly is smaller than that of the gastroscope assembly. When the diameter of the expandable sleeve assembly is at a maximum value, the gastroscope assembly can be slidably inserted into the inside of the expandable sleeve assembly. The present application adopts a double-layer sleeve insertion structure. First, the expandable sleeve assembly in a contracted state with a smaller diameter is inserted into the esophagus to reduce the discomfort of the patient. Then, the expandable sleeve assembly is unfolded from the folded and contracted state to a hollow tube structure with a larger diameter. Then, the gastroscope assembly is inserted into the inside of the expandable sleeve assembly to complete the insertion of the gastroscope.

A system for transesophageal echocardiogram-guided implantation of a valve device, the system including at least a transesophageal echocardiogram system configured to detect at least an ultrasound image and at least a computing device configured to receive at least an ultrasound image, generate at least a 3D cardiac model representative of a heart of the patient as a function of at least an ultrasound image wherein the at least an ultrasound image includes a two-dimensional image of the heart of the patient and wherein the 3D cardiac model includes a three dimensional interpolation of the two-dimensional image, determine a valve model datum as a function of the 3D cardiac model, receive at least valve model representative of at least a cardiovascular device to be placed within the patient as a function of the valve model datum and display the at least a 3D cardiac model and at least a valve model.

The invention provides a novel transesophageal ultrasound double-plane probe and an operation visual imaging navigation system thereof, and relates to the technical field of ultrasonic medical imaging. The near end of the probe handle is connected with the far end of the probe connecting cable; the forward-backward flexion adjusting knob and the leftward-rightward flexion adjusting knob are arranged on the probe handle; the near end of the tube body is connected with the far end of the probe handle; the tube body bending section is a flexible joint, and the near end of the tube body bending section is connected with the far end of the tube body; the probe transducer is arranged at the far end of the bent section of the tube body; the custom shortcut key is arranged on the probe handle; wherein the forward-backward bending adjusting knob and the leftward-rightward bending adjusting knob are used for controlling the bending direction of the bent section of the pipe body; the probe transducer comprises two planar ultrasonic array elements, and the two planar array elements are arranged in a 90-degree orthogonal crossing mode. And the imaging accuracy and timeliness are greatly improved.

The invention relates to the technical field of atrial shunts, and particularly discloses an atrial shunt in-vitro simulation model which comprises an esophageal ultrasonic probe, a pipeline and an ultrasonic probe, the tail ends of the esophageal ultrasonic probe and the pipeline are connected with a pleuroperitoneal cavity simulator, and monitoring cameras are symmetrically arranged in the pleuroperitoneal cavity simulator; an individualized 3D printing heart model established based on patient imaging data is installed in the thoracic and abdominal cavity simulator, and a vein pipeline is installed on one side of the surface of the 3D printing heart model. According to the in-vitro simulation model for the atrial shunt, the 3D printing heart model and the pleuroperitoneal cavity simulator are arranged, a highly-reduced individualized and repeatable operation training scene is provided for surgeons, medical students and engineers, the actual clinical operation risk is remarkably reduced, the core operation process of atrial shunt implantation can be completely simulated, and the operation efficiency is improved. Meanwhile, a monitoring camera in the pleuroperitoneal cavity simulator, an esophageal ultrasonic probe and a pipeline can feed back operation details in real time, and the operation success rate is increased.

The utility model discloses a visual pharyngeal cavity cold and hot stimulator, which comprises a liquid injection hose, the water bag is an elastic component, and the water bag is communicated with the front end of the liquid injection hose; the endoscope assembly comprises a lighting structure, an endoscope structure and a signal transmission structure, the signal transmission structure is electrically connected with the endoscope structure, and the signal transmission structure is used for transmitting images; the illumination structure and the endoscope structure are arranged at the foremost end of the water bag. According to the visual pharyngeal cavity cold and hot stimulator, the visual function is added into treatment, the position where the water bag reaches can be clearly observed, the situation that the water bag enters the trachea by mistake is avoided, by adding the visual function, the esophageal reaction of a patient can be observed during cold and hot stimulation treatment, and medical staff can judge the disease condition of the patient conveniently.

The invention discloses an esophagus local photosensitizer infiltration device for photodynamic targeted therapy, and relates to the technical field of photosensitizer infiltration, the esophagus local photosensitizer infiltration device comprises a tube body, an air supply tube is fixed in the tube body, and a liquid guide tube is fixed at one end, close to the air supply tube, of the tube body; the infiltrating part comprises an elastic bag, and the elastic bag is fixed at the unoccupied end of the tube body; the elastic bag is a hollow rubber bag with micropores formed in the side face and is communicated with the interior of the tube body, the elastic bag is inflated through the air supply pipe, so that the side face of the elastic bag is attached to a lesion area, a photosensitizer solution enters the elastic bag through the liquid guide pipe, and a micro camera is fixed to the side face, close to the infiltration part, of the tube body. The micro camera is used for transmitting images; a lighting source is fixed to the position, close to the micro camera, of the side face of the tube body and provides lighting for the micro camera. The photosensitizer solution can be reasonably utilized and is not prone to dripping in a healthy area, and the safety and efficiency of infiltration treatment are improved.

A system for and method of transesophageal echocardiogram-guided implantation of a stent are disclosed. The system includes at least a transesophageal echocardiogram (TEE) system, at least a display and at least a computing device configured to receive a plurality of ultrasound images, generate at least a three-dimensional (3D) cardiac model as a function of the plurality of ultrasound images, receive at least a 3D stent model, determine a view label for each of the plurality of ultrasound images and display the at least a 3D cardiac model and the at least a 3D stent model as a function of the view label. A system for and method of transesophageal echocardiogram-guided implantation of a valve device are also disclosed.

The utility model relates to a visual transesophageal echocardiography diagnostic apparatus in the technical field of medical instruments, which comprises a main body, a display screen is arranged at the top of the main body, supporting columns are symmetrically arranged at the bottom end of the main body, a connecting frame is fixedly connected to the front surface of the main body, an operating table is fixedly connected to the top of the connecting frame, and a visual visual transesophageal echocardiography diagnostic apparatus is arranged on the operating table. A detection operation wire harness is arranged on the lower portion of the front surface of the main body, a supporting adjustment moving mechanism is fixedly connected to the bottom end of the main body, and a fixing guide groove is formed in the side, close to the supporting adjustment moving mechanism, of a supporting column. The supporting and adjusting moving mechanism is quickly adjusted, so that the supporting and adjusting moving mechanism supports the whole, the supporting column is separated from the ground, the whole can be quickly moved under the action of the supporting and adjusting moving mechanism, and operation is convenient and quick.

The utility model provides a kind of with towline capsule endoscope, it is related to medical instrument field, including capsule endoscope and the towline being set on capsule endoscope, the outer surface of towline is provided with first coating, and first coating is used to enhance the mechanical strength of towline, the outer surface of capsule endoscope is equipped with second coating, and second coating is used to reduce the resistance of capsule endoscope with patient esophagus in use process.The first coating (including high molecular composite coating and / or fiber reinforced coating) of the outer surface of towline is set to strengthen the mechanical strength of towline;The second coating (including hydrophilic polymer coating and / or polytetrafluoroethylene PTFE coating) of the outer surface of capsule endoscope is set to reduce the resistance that capsule endoscope is received in patient esophagus, avoids the risk of towline fracture of with towline capsule endoscope.

The invention discloses a three-axis transesophageal ultrasonic probe remote control device which comprises a probe and a connecting pipe and further comprises a first driving part, and the first driving part drives the connecting pipe to move so as to drive the probe to enter a detected part in a human body. The second driving part drives the connecting pipe to rotate so as to drive the probe to perform circumferential detection on the detected part; the third driving piece drives the connecting pipe to move so as to drive the probe to move at the detected part; the control panel is used for controlling the first driving piece, the second driving piece and the third driving piece; the first driving piece, the second driving piece and the third driving piece are controlled through the control panel, the probe can move forwards, backwards and rotationally on a detected part in a small space after being fed into the detected part in a human body, so that remote, stable, convenient and accurate detection is carried out, and the detection efficiency is improved. A doctor can sit for operation in an operation and is far away from a radioactive source in a cardiac interventional operation.

A system for coordinate positioning of an ultrasound probe relative to a patient surface of a procedure table is provided. The system includes a robotic transesophageal echocardiography imaging (TEE) system. The robotic TEE system includes a support arm and an actuator. The support arm is coupled to an imaging system support. The support arm is configured to support the ultrasound probe. The actuator is configured to adjust at least one degree of freedom of the ultrasound probe relative to the support arm. The robotic TEE system is responsive to initiation of movement of the patient surface by constraining a change in relative position of the support arm relative to the patient surface.