9 results about "Parent artery" patented technology

The invention discloses an automatic microcatheter shaping method and device, electronic equipment and a storage medium. The microcatheter automatic shaping method comprises the following steps: acquiring craniocerebral image data containing aneurysm, and performing three-dimensional reconstruction processing on the craniocerebral image data to obtain a blood vessel model; performing aneurysm segmentation on the blood vessel model to obtain an aneurysm segmentation result; a tumor-carrying artery center line is obtained based on the blood vessel model and the aneurysm segmentation result, wherein the tumor-carrying artery center line refers to the center line of the artery where the aneurysm is located; the aneurysm is measured based on the aneurysm-carrying artery center line, the aneurysm segmentation result and the blood vessel model, and an aneurysm measurement result is obtained; the aneurysm measurement result is used for representing morphological information of the aneurysm; and obtaining a target microcatheter shaping scheme based on the aneurysm segmentation result, the aneurysm measurement result and the aneurysm-carrying artery center line. By means of the micro-catheter shaping device, automatic and accurate shaping of the micro-catheter is achieved, the micro-catheter shaping efficiency is improved, and the success rate of an interventional operation is increased.

The application discloses an aneurysm segmentation landing zone positioning and identifying method and system based on an optimal blood flow guiding model, and the method comprises the following steps: collecting image data of a target blood vessel region, and pre-processing the image data to obtain a blood vessel enhanced image; performing binaryzation on the blood vessel enhanced image to obtain a blood vessel cavity binary mask; extracting a tree-shaped blood vessel center line from the blood vessel enhanced image by using a blood vessel center line extraction algorithm; analyzing the tree-shaped blood vessel center line to obtain a multi-modal fusion feature vector; predicting a neck aneurysm probability value of the multi-modal fusion feature vector by using a pre-constructed neck aneurysm detection deep learning model, and screening a candidate neck aneurysm region and a parent artery region; and performing membrane membrane on the candidate neck aneurysm region and the parent artery region by using a blood vessel cavity three-dimensional binary mask, and extracting a device anchoring landing zone. According to the scheme, the neck aneurysm precisely positioned by the membrane membrane is taken as a starting point, and an anchoring landing zone section can be accurately screened out by searching upstream and downstream along the parent artery center line.

The present invention provides an aneurysm neck embolization member with flexibility in the neck region, and a method for manufacturing the aneurysm neck embolization member. [Solution] The device has a main body (collectively referred to as a body 52, neck 53, head 54, etc.) made of a tubular mesh material knitted by weft knitting to be flexible, and the main body includes a neck 53 that can fit into the neck of the aneurysm from the inside, and a body 52 knitted continuously with the neck 53 and inserted into the inside of the aneurysm, with the neck 53 interposed between one end in the axial direction and the other end of the neck 53, and the other end of the neck facing the neck N of the aneurysm from the side of the parent artery located outside the aneurysm and locked to the neck N of the aneurysm.

A method of treating a hemorrhage with a treatment fluid includes delivering the treatment fluid to targeted vasculature including the hemorrhage to modulate blood flow to the targeted vasculature. The treatment fluid includes a viscosifying polymer, a hemostatic agent, a vasoconstrictor, or a combination thereof. A flow guide device including a cylindrical structure with a low porosity wall, wherein the flow guide device is configured to be deployed in a parent artery including ostia of targeted vasculature. The flow guide device can facility the delivery of a treatment fluid to targeted vasculature.

An aneurysm occlusion apparatus and a system for occluding an aneurysm. The occlusion apparatus is configured to have an elongated configuration and an expanded configuration elastically transformed from the elongated configuration to radial expansion. The expanded configuration comprises a gathering portion, an extension section (3), and an expansion section (4), which are connected in sequence, the expansion section being connected to a tail end of the extension section (3). The extension section (3) is circumferentially enclosed to form an inner cavity (A). The extension section (3) comprises at least one inflection unit. The inflection unit comprises a first section (31) extending in a direction away from the axis, and a second section (32) extending in an inflection manner from a far end of the first section (31) to the axial direction. The expansion section (4) extends from a tail end of the second section (32) to the direction away from the axis. The second section (32) and the axis are arranged at intervals, so that a turning part (41) connected to the second section (32) on the expansion section (4) is circumferentially enclosed to form an annular opening (42), and the annular opening (42) is in communication with the inner cavity (A). The extension section (3) can occlude an aneurysm neck opening and is tightly attached to a tumor wall, and the expansion section (4) fills a tumor cavity, thereby reducing blood flow from a parent artery to an aneurysm top, facilitating thrombosis and aneurysm healing, and preventing the occlusion apparatus from falling off from the aneurysm neck opening.

The invention provides an intracranial blood vessel blood pressure detection method, and relates to the technical field of blood pressure detection methods, the intracranial unruptured cranial aneurysm volume of a detected object is judged according to a medical image of the detected object, and if it is judged that the volume is large and / or huge, the average arterial pressure M1 of a tumor-carrying artery is measured, and a micro catheter is placed into an aneurysm cavity; the micro catheter is connected with the invasive arterial pressure monitoring sensor; measuring the average arterial pressure P1 of the aneurysm cavity after the micro-catheter is placed; placing the dense net stent at the intracranial artery, covering the neck of the aneurysm, and respectively measuring the average arterial pressure M2 of the artery carrying the aneurysm and the average arterial pressure P2 in the aneurysm cavity; spring ring filling is conducted on the aneurysm cavity, and the average arterial pressure M3 of the aneurysm-carrying artery and the average arterial pressure P3 of the aneurysm cavity after spring ring filling are measured respectively; and obtaining an intracranial blood vessel blood pressure value change curve of the detected object according to the measurement result. A patient and a doctor can directly obtain the change condition of the blood pressure value in a mode that the micro-catheter extends into the measurement position for direct measurement.

The present invention discloses a real-time virtual implantation device for stent-assisted coils, which includes acquiring a three-dimensional vascular image sequence and constructing a diseased vascular model containing an aneurysm and the parent artery; extracting parent artery parameters according to the diseased vascular model and recommending stent specifications, and generating point cloud data for the stent based on the stent specifications, parent artery parameters, and a pre-designed stent cross-section; acquiring coil parameters, determining the starting point of the coil based on the aneurysm cavity, iteratively generating a set of candidate points for each time step of the coil based on the starting point and the coil parameters, and screening the candidate points according to the energy of each candidate point to determine the unique confirmed point for each time step. The unique confirmed points of all time steps constitute the point cloud data of the coil; generating a stent model based on the point cloud data of the stent and generating a coil model based on the point cloud data of the coil, which can improve the real-time virtual implantation effect of stent-assisted coils and reduce computational consumption.

This application discloses a device and storage medium for auxiliary diagnosis and treatment decision-making for aneurysms. The device includes a processor and a memory, enabling the following operations: segmenting the aneurysm region and the parent artery region based on original three-dimensional vascular images; calculating key morphological parameters of the aneurysm based on the aneurysm region and the parent artery region; determining the aneurysm neck type based on the key morphological parameters, obtaining a neck classification result; dividing the aneurysm region into a main region and sub-regions; calculating three-dimensional spatial geometric parameters between the main region and the sub-regions; and determining the decision result for auxiliary diagnosis and treatment of the aneurysm based on the neck classification result and the three-dimensional spatial geometric parameters. Using the solution of this application, the aneurysm and parent artery can be automatically segmented, key morphological parameters can be accurately calculated, the neck type can be intelligently classified, complex substructures can be analyzed, and treatment suggestions can be output, providing objective and quantitative decision support for clinicians.

The invention provides an intracranial aneurysm hemodynamic parameter and wall stress prediction method based on magnetic resonance angiography, which comprises the following steps of: obtaining magnetic resonance angiography three-dimensional imaging data information of an intracranial aneurysm patient, and performing geometrical shape processing on a three-dimensional data model by adopting 3-matic Medical13.0 software to obtain an aneurysm and aneurysm-carrying artery model; a one-dimensional blood flow solver is used for obtaining the blood flow state of the brain of the patient, wherein the blood flow state comprises the blood flow and pressure of main artery segments around the aneurysm; and internal flow characteristics and wall surface structure parameters of the aneurysm are obtained through bidirectional fluid-solid coupling calculation. According to the method, the blood vessel model based on the focus is constructed, the intratumor hemodynamics and the wall stress are obtained through the fluid mechanics theory and the solid mechanics theory, a more scientific diagnosis basis can be provided for clinicians, and the treatment method is optimized.