公开(公告)号：US20080020362A1

公开(公告)日：2008-01-24

申请号：US11573109

申请日：2005-08-10

申请人： Stephane Cotin ,  Xunlei Wu ,  Paul Neumann ,  Julien Lenoir ,  Christian Duriez ,  Rayn Bradsley ,  Vincent Pegoraro ,  Steven Dawson

发明人： Stephane Cotin ,  Xunlei Wu ,  Paul Neumann ,  Julien Lenoir ,  Christian Duriez ,  Rayn Bradsley ,  Vincent Pegoraro ,  Steven Dawson

IPC分类号： G09B23/30

CPC分类号： G09B23/285 ,  G16H50/50

摘要： Methods and apparatus provide realistic training in endovascular and endoluminal procedures. One embodiment includes modeling accurately the tubular anatomy of a patient to enable optimized simulation. One embodiment includes simulating the interaction between a flexible device and the anatomy and optimizing the computation. One embodiment includes replicating the functionality of therapeutic devices, e.g. stents, and simulating their interaction with anatomy. One embodiment includes computing hemodynamics inside the vascular model. One embodiment includes reproducing visual feedback, using synthetic X-ray imaging and/or or visible light rendering. One embodiment includes generating contrast agent injection and propagation through a tubular network. One embodiment includes reproducing aspects of the physical environment of an operating room by simulating or tracking, such as C-arm control panel, foot pedals, monitors, real catheters and guidewires, etc. One embodiment includes tracking instrument position and mimicking haptic feedback experienced when manipulating certain medical devices.

摘要翻译： 方法和手段为血管内和腔内手术提供了现实的训练。 一个实施例包括精确地建模患者的管状解剖结构以实现优化的模拟。 一个实施例包括模拟柔性装置与解剖结构之间的相互作用并优化计算。 一个实施例包括复制治疗装置的功能，例如。 支架，并模拟与解剖学的相互作用。 一个实施例包括计算血管模型内的血液动力学。 一个实施例包括使用合成X射线成像和/或可见光渲染来再现视觉反馈。 一个实施方案包括产生造影剂注射和通过管状网络传播。 一个实施例包括通过模拟或跟踪例如C臂控制面板，脚踏板，监视器，实际导管和导线等来再现手术室的物理环境的方面。一个实施例包括跟踪仪器的位置并模拟所经历的触觉反馈 操纵某些医疗设备。

公开(公告)号：US20070268288A1

公开(公告)日：2007-11-22

申请号：US10593834

申请日：2005-03-23

申请人： Christian Duriez ,  Claude Andriot

发明人： Christian Duriez ,  Claude Andriot

IPC分类号： G06T17/00 ,  G06T15/00

CPC分类号： G06T19/00 ,  G06F17/5018 ,  G06T13/20 ,  G06T2210/21

摘要： The invention relates to a method of interactively simulating contact between objects. The inventive method comprises the following steps, namely: the parameters describing the physical characteristics of each of the objects are computed; at the beginning of each simulated model sampling time step, each object is subjected to a real-time analysis of the specific behavior thereof according to a free movement that does not take account of possible subsequent contacts, and, subsequently, at an overall scene level, pairs of detected intersecting objects are subjected to real-time analysis; a list of collision groups is established; for each collision group, parameters representing the physical characteristics of the objects and the description of the collisions are repatriated in real time, to characterize the contact between two objects in the case of a pure relative sliding movement; and, for each object, the specific behavior of the object following the collision is displayed in real time and the set of real-time processes is performed with a calculation time step shorter than the sampling time step.

摘要翻译： 本发明涉及交互地模拟对象之间的接触的方法。 本发明的方法包括以下步骤：计算描述每个物体的物理特征的参数; 在每个模拟模型采样时间步长的开始，每个对象根据自由运动对其具体行为进行实时分析，该自由运动不考虑可能的后续接触，并且随后在总体场景级别 ，检测到的相交对象对进行实时分析; 建立了碰撞组列表; 对于每个碰撞组，表示物体的物理特征的参数和碰撞的描述被实时地返回，以表征在纯粹的相对滑动运动的情况下两个物体之间的接触; 并且对于每个对象，冲突后的对象的特定行为被实时显示，并且以比采样时间步长更短的计算时间步长执行实时处理集合。