6 results about "Parent vessel" patented technology

The present invention discloses a method for simulating aneurysm virtual stent implantation based on a spring analogy method. The method comprises: reconstructing a three-dimensional model of the preoperative parent vessel and the parent vessel after aneurysm restoration based on clinical imaging data; extracting the centerline of the first vessel to construct a virtual stent initialization model; deploying the virtual stent initialization model using a spring analogy virtual stent fast algorithm to determine the three-dimensional model of the virtual stent after deployment in the individualized vessel; and calculating efficacy evaluation parameters using a fast algorithm based on the arc surface porosity of the virtual stent neck. The present invention can simulate the actual motion of stent deployment and significantly shorten the simulation calculation time and efficacy evaluation time of simulated stent deployment within a vessel, thereby achieving real-time guidance during virtual aneurysm intervention.

A self-expandable occluding device can both cover the neck of an outpouching and serve as a permanent embolic plug thereby immediately stabilizing the outpouching. The self-expandable device effectively covers the neck of an outpouching with, for example, a mesh, or other at least partially occluding component, in a desired orientation across the neck of the outpouching without projecting into the parent vessel. The device incorporates elements which immediately stabilize the device in the outpouching, in effect, functioning as a permanent embolic plug. An embolic disc is combined with retention arms of flexible material, which deploy within the outpouching and provide immediate stabilization thereby retaining the occluding component or mesh across the neck of the outpouching. In illustrative embodiments, the arms are in the form of coils configured to deploy into three dimensional structures.

Method of endovascular treatment of an aneurysm having a sac with a neck in fluid communication with a parent vessel. A delivery catheter is navigated through the vasculature to the aneurysm. Next, a delivery system is advanced through the delivery catheter to the aneurysm. A liquid metal embolic is injected via the delivery system into the aneurysm with the injected liquid metal embolic at least partially filling the aneurysm. Optionally, a liquid metal embolic seepage preventative element (e.g., radially self-expanding braided structure or plurality of radially self-expanding coils) may be deployed in the aneurysm prior to the injection of the liquid metal embolic prohibiting the liquid metal embolic injected in the aneurysm from entering the parent vessel.

A self-expandable occluding device can both cover the neck of an outpouching and serve as a permanent embolic plug thereby immediately stabilizing the outpouching. The self-expandable device effectively covers the neck of an outpouching with, for example, a mesh, or other at least partially occluding component, in a desired orientation across the neck of the outpouching without projecting into the parent vessel. The device incorporates elements which immediately stabilize the device in the outpouching, in effect, functioning as a permanent embolic plug. An embolic disc is combined with retention arms of flexible material, which deploy within the outpouching and provide immediate stabilization thereby retaining the occluding component or mesh across the neck of the outpouching. In illustrative embodiments, the arms are in the form of coils configured to deploy into three dimensional structures.

Systems and methods provide a novel computational approach to planning the endovascular treatment of cardiovascular diseases. In particular, the invention simulates medical device deployment and hemodynamic outcomes using a virtual patient-specific anatomical model of the area to be treated, high-fidelity finite element medical device models and computational fluid dynamics (CFD). In an embodiment, the described approach investigates the effects of coil packing density, coil shape, aneurysmal neck size and parent vessel flow rate on aneurysmal hemodynamics. A processor may receive patient clinical data used to construct the relevant anatomical structure model. The processor may access medical device models constructed using finite element analysis and three dimensional beam analysis, and simulates the deployment of selected medical devices in the anatomical structure model. The selected medical device models and the anatomical structure model mesh, allowing the processor to simulate hemodynamic outcomes using computational fluid dynamics.

The application discloses a method for selecting an intratumoral turbulence device and a product thereof. The method comprises: obtaining medical image data of a target object, wherein the target object at least comprises an aneurysm and a parent vessel; segmenting and three-dimensionally reconstructing the medical image data to obtain a segmentation model of the target object; and inputting the segmentation model into a selection model based on deep learning to perform model recommendation; wherein the selection model comprises: a geometric feature extraction module configured to extract geometric features of the target object from the segmentation model, the geometric features being explicit measurable parameter features; and a classifier configured to output a prediction result of each candidate model of the intratumoral turbulence device based on at least the geometric features. According to the method, end-to-end automatic prediction from image data to model recommendation is realized.