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12 条记录 (耗时 0.027 秒)

    Speeding learning in neural networks
    1.
    发明授权
    Speeding learning in neural networks 失效
    加速神经网络学习

    公开(公告)号：US4912651A

    公开(公告)日：1990-03-27

    申请号：US284148

    申请日：1988-12-14

    申请人： Laurence F. Wood ,  Michael J. Grimaldi ,  Eric D. Peterson

    发明人： Laurence F. Wood ,  Michael J. Grimaldi ,  Eric D. Peterson

    IPC分类号： G06N3/08

    CPC分类号： G06N3/084

    摘要： A method of accelerating the training of an artificial neural network uses a computer configured as an artificial neural network with a network input and a network output, and having a plurality of interconnected units arranged in layers including an input layer and an output layer. Each unit has a multiplicity of unit inputs and a set of variables for operating upon a unit inputs to provide a unit output. A plurality of examples are serially provided to the network input and the network output is observed. The computer is programmed with a back propagation algorithm for adjusting each set of variables in response to feedback representing differences between the network output for each example and the desired output. The examples are iterated until the signs of the outputs of the units of the output layer converge. Then each set of variables is multiplied by a multiplier. The examples are reiterated until the magnitude of the outputs of the units of the output layer converge.

    摘要翻译： 一种加速人工神经网络的训练的方法使用配置为具有网络输入和网络输出的人造神经网络的计算机，并且具有布置成包括输入层和输出层的层的多个互连单元。 每个单元具有多个单位输入和一组用于在单位输入上运行以提供单位输出的变量。 将多个示例串行提供给网络输入，并且观察网络输出。 计算机被编程有反向传播算法，用于响应于表示每个示例的网络输出与期望输出之间的差异的反馈来调整每组变量。 迭代示例，直到输出层的单位输出的符号收敛。 然后每组变量乘以乘数。 重复这些示例，直到输出层的单位的输出的大小收敛。

    System and method for accessing the coronary sinus to facilitate insertion of pacing leads
    2.
    发明授权
    System and method for accessing the coronary sinus to facilitate insertion of pacing leads 失效
    用于进入冠状窦以便于插入起搏引线的系统和方法

    公开(公告)号：US07570981B2

    公开(公告)日：2009-08-04

    申请号：US11183050

    申请日：2005-07-15

    申请人： Eric D. Peterson

    发明人： Eric D. Peterson

    IPC分类号： A61B5/04

    CPC分类号： A61N1/056 ,  A61M25/09025 ,  A61M25/1011 ,  A61M2025/0063 ,  A61M2025/09141 ,  A61N2001/0585

    摘要： A guiding catheter system employs an outer jacket with one or more inflation lumens provided along the length of the jacket. The lumens are in fluid communication with one or more fluted balloons mounted at a distal end of the outer jacket. A torquable stylet is movably disposed within an open lumen of the outer jacket. A guidewire is movably disposed in an open lumen of the torquable stylet. The outer jacket can be provided with break-away features allowing the jacket to be peeled off of a pacing lead.

    摘要翻译： 引导导管系统采用具有沿护套长度设置的一个或多个充气腔的外护套。 流体与安装在外护套的远端处的一个或多个凹槽的气囊流体连通。 可旋转的探针可移动地设置在外护套的开口腔内。 导丝可移动地设置在扭转的管心针的开口腔中。 外套可以提供脱离特征，允许护套从起搏导线上剥离。

    Radiation centering catheters
    3.
    发明授权
    Radiation centering catheters 失效
    辐射定心导管

    公开(公告)号：US06224535B1

    公开(公告)日：2001-05-01

    申请号：US09024666

    申请日：1998-02-17

    申请人： Jessica G. Chiu ,  Eric D. Peterson

    发明人： Jessica G. Chiu ,  Eric D. Peterson

    IPC分类号： A61N500

    CPC分类号： A61N5/1002 ,  A61M25/10 ,  A61N2005/1003

    摘要： The invention is directed to a radiation delivery catheter assembly for maintaining patency of a body lumen for a period of time sufficient to allow delivery of a radiation source to the body lumen. The catheter utilizes an inflatable region which maintains and centers the catheter in the body lumen. The catheter may include a perfusion lumen for supplying oxygenated blood to tissue located downstream from the catheter when the inflatable region is expanded in the body lumen. The inflatable region can be made up of a plurality of balloon segments which help center the radiation source, even if placed on a curved section of the body lumen. Embodiments of the invention include a catheter design which utilizes “rapid exchange” features and a dual therapeutic catheter which is capable of dilating a stenosed region of the body lumen prior to the administration of the radiation treatment. A two-piece protective sheath is used to protect the radiation source from bodily fluids.

    摘要翻译： 本发明涉及一种辐射递送导管组件，用于维持体腔通畅一段足以使辐射源传送至体腔的时间。 该导管使用可将导管保持并居中在体腔内的可充气区域。 当可膨胀区域在体腔内扩张时，导管可包括用于将氧合血液供应到位于导管下游的组织的灌注腔。 可膨胀区域可以由多个气囊段组成，即使放置在体腔的弯曲部分上也有助于使辐射源居中。 本发明的实施例包括利用“快速交换”特征的导管设计和能够在施用放射治疗之前扩张体腔的狭窄区域的双重治疗导管。 使用两片保护套来保护辐射源免受体液的伤害。

    Radiation shielded catheter for delivering a radioactive source and method of use
    7.
    发明授权
    Radiation shielded catheter for delivering a radioactive source and method of use 失效
    用于放射源的放射屏蔽导管及其使用方法

    公开(公告)号：US6159140A

    公开(公告)日：2000-12-12

    申请号：US24669

    申请日：1998-02-17

    申请人： Joseph P. Loeffler ,  Eric D. Peterson ,  Jon A. Becker

    发明人： Joseph P. Loeffler ,  Eric D. Peterson ,  Jon A. Becker

    IPC分类号： A61F2/958 ,  A61M36/04 ,  A61N5/10 ,  A61N5/00

    CPC分类号： A61N5/1002 ,  A61M25/10 ,  A61N2005/1004 ,  A61N2005/1021

    摘要： A radiation delivery catheter which increases the margin of safety and reduces unintended exposure to radiation dosage during delivery thereof to a target area to reduce the likelihood of the development of restenosis. The catheter includes a shaft comprised of radiation shielding material, to shield the patient and staff from unintended radiation exposure. The catheter further includes a treatment section including a reservoir balloon comprised of radiation trans-parent material, which enables predetermined concentrations of radioactivity in the radiation source to permeate therethrough into the target area in a substantially uniform dosage pattern.

    摘要翻译： 一种辐射输送导管，其增加安全边缘，并减少在将其递送至目标区域期间辐射剂量的意外暴露以减少再​​狭窄发展的可能性。 导管包括由辐射屏蔽材料组成的轴，以屏蔽患者和工作人员免受非预期的辐射照射。 导管还包括处理部分，其包括由辐射反式材料组成的储存器气囊，其使辐射源中的预定浓度的放射性以基本上均匀的剂量模式渗透到目标区域中。

    TRAINING SYSTEM AND METHOD FOR A DYNAMIC FLUID FLOW SYSTEM
    8.
    发明申请
    TRAINING SYSTEM AND METHOD FOR A DYNAMIC FLUID FLOW SYSTEM 审中-公开

    公开(公告)号：US20170213483A1

    公开(公告)日：2017-07-27

    申请号：US15412382

    申请日：2017-01-23

    申请人： Michael J. Free ,  Eric D. Peterson

    发明人： Michael J. Free ,  Eric D. Peterson

    IPC分类号： G09B25/02 ,  G09B19/00

    CPC分类号： G09B25/025

    摘要： A dynamic fluid flow system for training. The system incorporates transparent piping, transparent pump components, transparent valve components, and other components found in most fluid flow systems which provide visual feedback for training purposes when training personnel on the fluid flow system. The fluid flow system of the present invention includes all elements which would typically be found on a fluid flow system used in industrial facilities such as power plants, and allows full training and certification of personnel on a full interactive dynamic system which produces visual feedback not capable on existing training systems or even on actual systems used in industrial applications. An embodiment of the present invention could be in the form of a portable system which can be transported in a standard trailer or even deployed in a vehicle for remote deployment.

    Stepped centering balloon for optimal radiation delivery
    9.
    发明授权
    Stepped centering balloon for optimal radiation delivery 有权
    步进的定心气球，以获得最佳的辐射输送

    公开(公告)号：US06605031B1

    公开(公告)日：2003-08-12

    申请号：US09505340

    申请日：2000-02-16

    申请人： Firas Mourtada ,  Eric D. Peterson

    发明人： Firas Mourtada ,  Eric D. Peterson

    IPC分类号： A61M3604

    CPC分类号： A61M25/1002 ,  A61M2025/1047 ,  A61N5/1002 ,  A61N2005/1003

    摘要： A stepped centering catheter for delivery of intravascular radiation therapy including a central segment of a first effective diameter and smaller, offset segments of second effective diameters to each side of the central segment. The first effective diameter of the central segment substantially centers a portion of a radiation source within the lumen of a vessel along a therapeutic treatment length. The second effective diameters of the offset segments constrain portions of the radioactive source that extend beyond the therapeutic treatment length within a region having a minimum offset distance from the vessel wall. The first effective diameter of the central segment is gradually tapered to the second effective diameter of the offset segments across first steps. The second effective diameters of the offset segments are gradually tapered to the diameter of the catheter shaft across second steps. The smaller diameter offset segments and tapered change in diameters mitigates further injury to vessel walls located outside the therapeutic treatment length.

    摘要翻译： 一种用于递送血管内放射治疗的阶梯式定心导管，包括第一有效直径的中心段和较小的第二有效直径的偏移段到中心段的每一侧。 中心段的第一有效直径基本上使辐射源的一部分沿着治疗处理长度居中在容器的腔内。 偏移段的第二有效直径将放射源的部分限制在距离血管壁最小偏移距离的区域内延伸超过治疗处理长度。 中心段的第一有效直径在第一步骤中逐渐变细到偏移段的第二有效直径。 偏移段的第二有效直径在第二步骤中逐渐变细到导管轴的直径。 较小的直径偏移段和直径的锥形变化减轻了位于治疗治疗长度之外的血管壁的进一步损伤。

    Proximal catheter shaft design and catheters incorporating the proximal shaft design
    10.
    发明授权
    Proximal catheter shaft design and catheters incorporating the proximal shaft design 有权
    近端导管轴设计和导管结合近轴设计

    公开(公告)号：US06579221B1

    公开(公告)日：2003-06-17

    申请号：US09872305

    申请日：2001-05-31

    申请人： Eric D. Peterson

    发明人： Eric D. Peterson

    IPC分类号： A61N500

    CPC分类号： A61N5/1002 ,  A61M25/1006 ,  A61M2025/0004 ,  A61M2025/006 ,  A61N2005/1003

    摘要： A novel proximal shaft design used for the manufacture of a catheter. In particular, the proximal shaft design provides excellent stiffness and kink resistance with a reduced outer catheter shaft diameter for improved catheter performance. The proximal shaft design incorporates a shaft with radially extending ridges that have inset regions positioned between adjacent ridges. The catheter may be used in delivering and maintaining a radiation source in a patient's body lumen, such as a coronary artery, for a specified period of time. The proximal shaft design can be applied to other treatments and treatment sources, as well as, other catheter designs.

    摘要翻译： 用于制造导管的新型近轴设计。 特别地，近侧轴设计提供优异的刚度和扭结阻力，减少外导管轴直径以改善导管性能。 近轴设计包括具有径向延伸的脊的轴，其具有位于相邻脊之间的插入区域。 导管可以用于在患者的体腔（例如冠状动脉）中输送和维持辐射源一段指定的时间。 近轴设计可以应用于其他治疗和治疗源，以及其他导管设计。