150 results about "Target lesion" patented technology

The present invention relates to medical devices and methods for treating a lesion such as a vascular stenosis using non-thermal irreversible electroporation (NTIRE). Embodiments of the present invention provide a balloon catheter type NTIRE device for treating a target lesion comprising a plurality of electrodes positioned along the balloon that are electrically independent from each other so as to be individually selectable in order to more precisely treat an asymmetrical lesion in which the lesion extends only partially around the vessel.

The invention provides a disease monitoring method and system based on medical image data recognition, and relates to the technical field of image processing. The method comprises the following steps: acquiring multi-level prior information related to a target disease from a medical knowledge graph, encoding focus attributes and time sequence attributes in the multi-level prior information into knowledge prior vectors, inputting the knowledge prior vectors into a generator, and enabling the generator to output focus image data based on the knowledge prior vectors; when the lesion image data output by the generator and the knowledge prior vector are subjected to difference evaluation, the discriminator also calls lesion boundaries and staging limitation rules in the medical knowledge graph to perform compliance judgment on the form and staging state of the lesion image data; updating network parameters of the generator based on a difference evaluation and compliance determination result output by the discriminator to obtain target lesion image data; and combining the focus image data with the original medical image, inputting the combined image data into a preset disease monitoring model, and generating a potential focus detection result.

The invention discloses a flexible pulse energy delivery device and an interventional ablation method. The device comprises an electrode assembly, a flexible tube body assembly, a control assembly and an ablation system. The electrode assembly is configured to transmit pulse energy to a target focus in an organ for electroporation ablation, and the flexible tube body assembly is configured to transfer the electrode assembly to a first distance range of the target focus; the electrode assembly is arranged at the head end and / or the surface of the flexible pipe body assembly and moves and abuts against the flexible pipe body assembly. A positioning sensor in the flexible tube body assembly is used for obtaining position information of the electrode assembly, and the ablation system establishes a three-dimensional image according to the position information. According to the scheme, through real-time electromagnetic positioning navigation guidance, the electrode arrangement and conveying difficulty is reduced; unipolar and bipolar mode ablation can be carried out, the influence of tissue impedance on a formed ablation loop is small, and pulse energy is controllable; the conveying direction of the catheter can be flexibly adjusted, and the success rate of the irreversible electroporation ablation operation is increased.

The invention relates to the technical field of image data processing, in particular to an endoscope image intelligent optimization method and system. The method comprises the following steps: acquiring a grayscale image of an endoscope image of a stomach, acquiring an edge image of the grayscale image, and performing region growth on pixel points with gradient values greater than a preset gradient in the edge image to obtain a plurality of first connected domains; according to the area of the minimum enclosing rectangle of the first connected domain and the number of edge pixel points, determining a suspected lesion area in the grayscale image, and taking the minimum grayscale value in the suspected lesion area as an initial segmentation threshold value; and gradually increasing the segmentation threshold value from the initial segmentation threshold value, segmenting the suspected lesion area to obtain a plurality of binary images, and determining a target lesion area according to the difference degree of newly added pixel points between the adjacent binary images in discreteness characteristics. By means of the technical scheme, the accurate focus area in the endoscope image of the stomach can be obtained.

The invention discloses a fuzzy edge enhanced skin lesion image segmentation method and system. The method comprises the steps of S110-S140: S110: collecting clinical skin lesion image data; s120, constructing a fuzzy edge segmentation network ResPDCNet of the residual error pixel differential convolution; s130, carrying out training on the constructed ResPDCNet (Registered Packet Data Convergence Network And S140, according to a network training result, giving a skin lesion region segmentation result. The invention provides a fuzzy edge enhanced skin lesion image segmentation method based on residual pixel difference convolution. According to the method, detail edge details of a target lesion area are extracted through a residual pixel convolution block, the problem that the pixel difference between a foreground area and a background area in a clinical medical image is small is solved, and then space and channel feature extraction is carried out through a residual attention block to perceive the size and position of a lesion part. The problems of different sizes of lesion parts and difficulty in positioning the lesion positions are solved.

The invention discloses a drug eluting stent, which comprises a stent main body and a plurality of thorn-shaped components, the stent main body has a radially compressible contraction state and a radially self-expanding expansion state to support blood vessels, and the plurality of thorn-shaped components are arranged on the outer surface of the stent main body and coated with a drug coating for inhibiting vascular restenosis. The spine-shaped components are arranged on the stent body and are configured to protrude towards the outer side of the stent body from the outer surface of the stent body to penetrate into calcified lesions on the inner wall of a blood vessel when the stent body is switched from the contraction state to the expansion state, each spine-shaped component is provided with a part capable of generating elastic deformation, and the spine-shaped components are configured to be capable of generating deformation in a self-adaptive mode according to the thickness of the contacted calcified lesions. Therefore, the medicine can be uniformly distributed in a target lesion area, and the utilization rate of the medicine and the treatment effect are remarkably improved.

The invention discloses a breast surgery puncture positioning system, which relates to the technical field of image positioning, and is characterized in that a preoperative medical image and an intraoperative ultrasonic image of a patient are acquired to generate a three-dimensional model, an optimal puncture path is planned by receiving a needle insertion point of a user, and the spatial pose of a puncture needle is tracked; the optimal puncture path and the position and posture of the puncture needle are displayed on the real-time ultrasonic image in an overlapped mode, real-time deviation is calculated, the puncture needle is guided and adjusted to the target focus, and real-time compensation is carried out based on the respiratory signal and / or the displacement of the reference datum. Through the multi-modal image fusion and real-time dynamic tracking technology, the puncture precision and hit rate are remarkably improved, meanwhile, the system intelligently plans a safe path and provides an AR navigation interface, the operation difficulty and dependence on doctor experience are greatly reduced, physiological displacement interference is overcome through respiratory gating and a motion compensation mechanism, and the system has the advantages of being high in accuracy and high in reliability. Accuracy and reliability in the whole operation process are guaranteed, and finally standardized and safe mammary gland puncture diagnosis and treatment operation is achieved.

Methods and systems for identifying a region of interest in breast tissue utilize artificial intelligence to confirm that a target lesion identified during imaging the breast tissue using a first imaging modality (e.g. x-ray imaging) has been identified using a second imaging modality (e.g. ultrasound imaging). A computing system operating a lesion matching engine utilizes a machine learning classifier algorithm trained on cases of x-ray images and corresponding ultrasound images in which lesions were identified for further analysis. The lesion matching engine analyzes a target lesion identified with x-ray imaging and a potential lesion identified with ultrasound imaging to determine a likelihood that the target lesion is the same as the potential lesion. A confidence level indicator for the lesion match is presented on a display of a computing device to aid a healthcare provider in locating a lesion in breast tissue.

The invention discloses a focus auxiliary analysis method, device and equipment and a computer readable storage medium, and the method comprises the steps: obtaining a plurality of stages of medical images collected in a target examination period; focus detection is carried out on the multi-stage medical images, and focus information of a target focus in a target examination period is determined; determining analysis information of the target focus according to the focus information of the target focus; determining a target medical image according to the analysis information and the multiple medical images in the target examination period; acquiring a reference medical image corresponding to the target medical image in a reference examination period; and outputting lesion analysis information of the target lesion according to the analysis information corresponding to the multiple stages of target medical images and the analysis information corresponding to the corresponding reference medical images. The method can effectively improve the lesion auxiliary analysis efficiency.

The embodiment of the invention provides a beauty instrument control method and device, electronic equipment and a storage medium, and belongs to the technical field of medical electronic equipment. The method comprises the following steps: acquiring a skin image of a target object, and performing focus detection on the skin image to obtain a target focus area; and obtaining the area of the target lesion region according to the target lesion region to obtain the lesion region area. And determining a target pixel value according to the pixel value of the target focus area. And adjusting a preset initial gear according to the focus region area and the target pixel value to obtain a target gear. And adjusting a preset initial mode according to the focus type to obtain a target mode. And controlling the beauty instrument to output the light energy to the target focus area according to the target mode and the target gear, thereby selecting the most suitable target mode according to the focus type, selecting the most suitable target gear according to the focus area area and the target pixel value, realizing automatic accurate mode and gear adjustment for the beauty instrument, and improving the treatment efficiency.

The invention provides an insertion part and an endoscope, relates to the technical field of endoscopes, and solves the problem of large displacement of the insertion part relative to a target focus due to respiratory movement in the prior art. The endoscope is provided with an insertion part, and a working channel, a first fluid channel and a second fluid channel which are mutually independent and extend from the near end to the far end are arranged in a front end assembly of the insertion part; a to-be-fixed area integrally adjacent to the front end assembly is arranged on the outer peripheral wall of the insertion part; the first fluid channel conveys the hydrogel to an outlet located in a to-be-fixed area to be discharged; the second fluid channel conveys the hydrogel degradation agent to an outlet located in a to-be-fixed area to be discharged; an outlet of the working channel is located in the far end face of the insertion part and used for instrument penetrating and negative pressure suction. The space between the insertion part and the bronchus can be filled with hydrogel through the first fluid channel so that the insertion part can be temporarily fixed to the position, adjacent to the focus, in the bronchus, and therefore the displacement degree between the insertion part and the focus can be reduced in the breathing process of a patient.

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

The present invention relates to an image navigation method and system for a surgical microscope. The method includes: first, after fixing a surgical object and markers, radiographing the surgical object and markers to obtain a three-dimensional digital image; then, positioning the markers in the three-dimensional digital image to form a three-dimensional coordinate system and obtain the relative position between the target lesion and the markers; then, plotting a surgical instrument entry point and path guidance points on the three-dimensional digital image to form a navigation path, and transmitting the navigation path data to a media signal processing device; then, positioning the target lesion and markers within the field of view of the surgical microscope and transmitting the image within the field of view of the surgical microscope to the media signal processing device; the media signal processing device recognizing the markers to form a three-dimensional space corresponding to the image within the field of view of the surgical microscope; and real-time navigation is achieved by superimposing the navigation path image at predetermined coordinates on the image within the field of view of the surgical microscope in the three-dimensional space. The system includes a surgical microscope, a media signal processing device, and markers, and the surgical microscope includes a microscope tube and an image enhancement device. By accurately positioning the surgical instrument entry point and path guidance point, the present invention can guide a doctor or related personnel in completing dental treatment and surgery, thereby improving the precision of surgery.

To provide a method for measuring changes in the size of a target lesion in an X-ray image.SOLUTION: The present disclosure comprises the steps of: receiving a first X-ray image including a target lesion and a second X-ray image including the target lesion; calculating an occupancy rate of a region corresponding to the target lesion in each of the reference regions in the first X-ray image and the second X-ray image; and measuring changes in the size of the target lesion based on the calculated occupancy rate.SELECTED DRAWING: Figure 1

Systems and methods for planning a medical procedure and / or navigating during a medical procedure are described. In one aspect, an expected trajectory of a treatment tool extendable from a flexible elongate device is determined based on a pose of the flexible elongate device. A planned ablation zone is determined relative to a model representing the internal patient anatomy and the target lesion based on the insertion distance of the treatment tool and the expected trajectory. A display device is caused to display a graphical user interface depicting the expected tool trajectory and the planned ablation zone. In another aspect, the position of the flexible elongate device is determined relative to a model representing a target lesion. A trajectory along which the treatment tool is accessible to the target lesion is determined based on the location of the target lesion and the location of the flexible elongate device.

According to the ultrasonic imaging equipment and the lesion distribution presentation method provided by the invention, the volume data is firstly obtained, then the target tissue and the target lesion are identified from the volume data to obtain the three-dimensional contours of the target tissue and the target lesion, and then the three-dimensional schematic diagram is generated based on the two three-dimensional contours. The three-dimensional schematic diagram is used for presenting the form of the target tissue and the form and the position of the target focus in the target tissue, so that a user can intuitively know the distribution condition of the focus in space, the distribution of the focus is easier to understand and master compared with an ultrasonic image, and the working efficiency of a doctor is improved. And generating a two-dimensional diagram corresponding to at least one target section according to the three-dimensional contour of the target tissue and the focus, wherein the two-dimensional diagram corresponding to the target section comprises a target tissue graph used for presenting the form of the target tissue and a target focus graph used for presenting the form and the position of the target focus. Therefore, the user can know the distribution of the focus through the two-dimensional schematic diagram.

The invention provides an image detection method and device, equipment and a storage medium, and the method comprises the steps: obtaining a detection image obtained through plain-scan CT, and extracting a target body part image from the detection image; performing first image classification segmentation processing on the target body part image through a first image detection model to determine that a first target lesion type and a lesion area corresponding to the first target lesion type exist in the target body part image; and performing second image classification segmentation processing on the target body part image through a second image detection model to determine a second target lesion type and a lesion area existing in the target body part image, the second target lesion type being a sub-category of the first target lesion type. Through cooperation of the two image detection models, refined detection of an image containing a lesion type and a lesion area can be realized.

The utility model provides a C-shaped curved stepped balloon catheter, which relates to the technical field of kidney intervention.The C-shaped curved stepped balloon catheter comprises a first balloon head end, the side end of the first balloon head end is integrally communicated with a concave bent wrinkled edge, and the side end of the concave bent wrinkled edge is integrally communicated with a second balloon tail end. In a non-working state, the wall of the balloon in the whole structure is folded to be in a straight column shape, a guide wire can conveniently pass through the balloon to reach a diseased region, in a working state, the whole balloon is in a C shape and is divided into two sections, the diameter of the head end of the first balloon ranges from 4 mm to 5 mm, the first balloon crosses an internal fistula anastomotic stoma to be placed in an artery, the diameter of the tail end of the second balloon ranges from 6 mm to be placed in a vein, and after the whole balloon is placed into a target lesion through the guide wire, the whole balloon is placed into the target lesion through the guide wire. The bending direction is adjusted, a pressure pump is connected, pressurization is conducted, the head end of the first balloon, the concave bending wrinkled edge and the tail end of the second balloon are expanded, arteries and veins with different inner diameters are expanded at the same time through radial force, and fracture caused by tearing of anastomotic stoma is avoided.

An artificial intelligence-based lesion analysis device and method utilizing the characteristics of blood vessels surrounding a lesion are disclosed. An artificial intelligence-based lesion analysis method utilizing the characteristics of blood vessels surrounding a lesion according to one embodiment of the present invention may include: (a) acquiring a medical image of a subject; (b) inputting the medical image into a pre-established segmentation model to segment a lesion region included in the medical image and a blood vessel region surrounding the lesion region; (c) extracting blood vessel feature information from the segmented blood vessel region; and (d) inputting the blood vessel feature information into a pre-established analysis model to generate analysis information associated with a target lesion of the subject.

The application discloses a self-expanding balloon catheter and relates to the technical field of medical devices, which comprises a main pipe body, a self-expanding balloon and an outer sheath pipe, the outer sheath pipe is sleeved on the main pipe body and is in sliding connection with the main pipe body, the self-expanding balloon is provided with two groups and is located at the proximal end and the distal end of the main pipe body, the main pipe body comprises a medicine injection channel with a medicine release side hole, and the side hole is located between the two groups of self-expanding balloons, and the outer sheath pipe is used for restraining the self-expanding balloon. Through the arrangement, the self-expanding balloon is adopted, the balloon can be self-inflated and expanded, and it is not necessary to rely on external injection of gas or liquid, which is favorable for simplifying the operation process and shortening the operation time; in a non-working state, the balloon is restrained by the outer sheath pipe and is in a contracted state, so that the overall diameter of the catheter is reduced, and it is favorable for sending the catheter to a target lesion position; the outer sheath pipe is withdrawn, the restriction of the balloon is released, the double balloons are self-inflated in a cavity and form a closed medicine perfusion treatment cavity, and it is favorable for realizing local and accurate treatment of non-blood vessel cavity lesions.

The present invention discloses an endoscope-based digital image enhancement method and system, which aims to solve the imaging limitations of traditional endoscopes in multi-lesion positioning and targeted intervention. The endoscope-based digital image enhancement method can perform endoscopic image acquisition, wireless transmission, abnormal anchor point identification and controllable terminal targeted intervention operations. The enhancement system for implementing the endoscope-based digital image enhancement method identifies suspected lesions through image analysis, the control unit issues a release instruction, causes the endoscope to release the controllable terminal and establish communication, the scheduling system navigates the controllable terminal to the abnormal anchor point according to the position information, acquires and transmits the digitally enhanced lesion image, and the judgment unit analyzes whether there is a target lesion with intervention value. This method can enhance the digital image in the human body cavity and improve the accuracy of lesion identification and intervention efficiency.

A guide extension catheter (300) positionable within a guide catheter (302) and configured to receive an interventional device for insertion into the vasculature. The guide extension conduit includes a pushing member (322), a first reinforcing member (306) in contact with the pushing member, and a radially collapsible tubular membrane (310) in contact with the pushing member and the first reinforcing member. A tubular membrane is positioned distal to the first reinforcing member and radially collapses or wraps around the pushing member prior to receiving the interventional device. The urging member provides sufficient columnar strength to prevent longitudinal collapse of the tubular membrane during use. The guide extension catheter may access a target lesion in the vasculature and optionally provide a lower friction, larger diameter pathway (for a given compatible guide catheter size) through the target lesion in the vasculature, thereby reducing microscopic and macroscopic vasculature damage caused by delivery of the interventional device.

The present invention provides a retractable drug perfusion stent system, which belongs to the field of medical device technology, and includes: an inner tube and an outer tube slidably sleeved on the inner tube, the proximal ends of the inner tube and the outer tube are connected with a pushing device; the distal end of the inner tube has a tip; a perfusion microtube, which is spiral-shaped and has micropores; a perfusion tube; and a drug delivery device. The retractable drug perfusion stent system provided by the present invention is provided with micropores on the perfusion microtube. After the perfusion microtube reaches the lesion position, the perfusion microtube is switched from a retracted state to an expanded state. At this time, the perfusion microtube is freed from the restriction of the outer tube, and expands itself to fit with the blood vessel wall and expand the target lesion. The drug delivery device inputs the drug into the perfusion microtube through the perfusion tube, and delivers the drug to the target lesion through the micropores of the perfusion microtube. This drug perfusion stent will not remain in the body. At the same time, this method will not block blood flow, and can also continuously deliver drugs and control the drug delivery time. The entire operation process is simple and easy to operate.

The present invention provides a method and system for reconstruction error assessment of an interventional tool used in an image-guided interventional procedure. In one example, an error model based on a target lesion location within a tissue, one or more interventional tool parameters, and imaging system parameters can be used to estimate the expected reconstruction error of the interventional tool. In another example, when the interventional tool is within the tissue, the expected reconstruction error together with the observed tool shape and size can be used to infer the actual tool position and shape within the tissue.

The application discloses a kind of indoor light control method, system, equipment and medium, the control method includes: determining the target lesion area of patient;According to the angle information between target lesion area and lighting device, the lighting weight information corresponding to lighting device is calculated;Control lighting device emits light in line with corresponding lighting weight information to target lesion area.The application controls lighting device to emit light according to the lighting weight information calculated according to the angle information between target lesion area and lighting device, can automatically adjust the power or brightness of each lighting device, avoids user manually adjusting the lighting parameter of each lighting device in operating room, solves the problem that composite operating room relies on artificial adjustment shadowless lamp;It improves the intelligent degree of operating room shadowless lamp;Enhance the experience of user.

The invention discloses a sample anti-pollution sampler for gynecological detection, which relates to the technical field of sampling devices, and comprises a mounting part, a grip and a stretching tube, the air exhaust sliding pipe is arranged in the extending pipe in a penetrating manner; the driving mechanism is arranged on the mounting part and used for driving the air exhaust sliding pipe to move and driving the air exhaust sliding pipe to rotate around the axis of the air exhaust sliding pipe in the moving process; the cutting executing mechanism is connected with the stretching-in end of the air exhaust sliding pipe, contracts in the radial direction along with the axial movement of the air exhaust sliding pipe and rotates along with the rotation of the air exhaust sliding pipe so as to conduct girdling on the target tissue; and the sample absorbing mechanism is communicated with an internal channel of the air exhaust sliding pipe, is used for absorbing and accommodating target tissues under the action of negative pressure, and moves along with the axial movement of the air exhaust sliding pipe. According to the device, negative pressure is generated through external air exhaust equipment, target pathological tissues are adsorbed and pulled into the sample adsorption mechanism, and the problems that the pathological tissues do not protrude out of the surface of normal tissues, and positioning and clamping are difficult in a traditional clamping mode are effectively solved.

This information processing system comprises at least one processor. The at least one processor acquires one or more target images indicating one or more target pelvic organs of a subject, and inputs each of the one or more target images to an image analysis model, which is trained so as to identify the pelvic organ and at least one lesion related to the pelvic organ from the input image, to generate one or more analysis result images indicating the result of processing by the image analysis model in a format in which each of the one or more target pelvic organs and a target lesion that is the lesion of the subject are distinguished from each other.

The present disclosure relates to an oral cavity detection method, device and equipment, comprising: obtaining a three-dimensional tooth model by scanning; detecting a target lesion area of the tooth and its confidence level based on an oral cavity detection model under a current detection view angle; back-projecting the target lesion area to the three-dimensional tooth model to obtain a current lesion position of the three-dimensional tooth model; judging whether the area overlap degree of the current lesion position and a historical lesion position is higher than a preset threshold; if yes, selecting the one with high confidence level as the target lesion position from the current lesion position and the historical lesion position, and updating the mark of the target lesion position; if no, determining the current lesion position as a new lesion position, and adding a mark of the new lesion position; determining a next detection view angle and performing the above operation again until the operation under the last detection view angle is completed, and obtaining multiple lesion positions of the three-dimensional tooth model. The present disclosure can improve the oral cavity detection efficiency and lesion marking accuracy.

The utility model discloses a medicine carrying support and a conveying system, the medicine carrying support comprises a support body and a recycling part, the surface of the support body is provided with a plurality of acting parts and tip parts located at the tail ends of the acting parts; at least one of the stent body, the acting part and the tip part is provided with a coating part; one end of the support body is provided with a recycling part, and the marking part is embedded into or installed in the recycling part. The support body comprises a plurality of support composition parts and connecting rods located at the ends of the support composition parts, and the support composition parts comprise one of a rhombus shape, a quadrangle shape, a W shape and a V shape. For treating diseases such as vascular atherosclerosis, vascular obstruction and narrow spill, the problems of inflammation, endothelialization disorder, advanced thrombus and the like caused by implantation of a medicine-carrying stent are solved, meanwhile, the medicine transfer amount is increased, and the diffusion of the medicine at a target lesion position is increased; compared with traditional treatment methods such as medicine balloons, the device can provide a stable and lasting treatment effect.

A target positioning method is provided to include: determining, in response to determining that a video frame image including a target lesion is detected from a video stream, location information of the target lesion on the video frame image; tracking the target lesion according to the location information of the target lesion on the video frame image, and determining location information of the target lesion on a video frame image in the video stream.