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13 条记录 (耗时 0.014 秒)

    Method, system and apparatus for real-time classification of muscle signals from self-selected intentional movements
    1.
    发明授权
    Method, system and apparatus for real-time classification of muscle signals from self-selected intentional movements 有权
    用于从自选故意运动中实时分类肌肉信号的方法，系统和装置

    公开(公告)号：US08437844B2

    公开(公告)日：2013-05-07

    申请号：US11506786

    申请日：2006-08-21

    申请人： Kaveh Syed Momen ,  Tom Tak Kin Chau

    发明人： Kaveh Syed Momen ,  Tom Tak Kin Chau

    IPC分类号： A61B5/04

    CPC分类号： A61F2/68 ,  A61B5/04888 ,  A61B5/6824 ,  A61B5/7267 ,  A61F2/583 ,  A61F2/72 ,  A61F2002/704 ,  A61F2002/705

    摘要： A new method, system and apparatus is provided that enables muscle signals that correspond to muscle contractions to be mapped to one or more functions of an electronic device such as a prosthetic device or gaming apparatus. Muscle signals are classified in real-time from self-selected intentional movements. A self-training protocol allows users to select and label their own muscle contractions, and is operable to automatically determine the discernible and repeatable muscle signals generated by the user. A visual display means is used to provide visual feedback to users illustrating the responsiveness of the system to muscle signals generated by the user.

    摘要翻译： 提供了一种新的方法，系统和装置，其使得对应于肌肉收缩的肌肉信号被映射到诸如假肢装置或游戏装置的电子装置的一个或多个功能。 肌肉信号可以通过自主选择的有意移动实时分类。 自我训练协议允许用户选择和标记自己的肌肉收缩，并且可操作以自动确定用户产生的可识别和可重复的肌肉信号。 视觉显示装置用于向用户提供视觉反馈，说明系统对用户生成的肌肉信号的响应性。

    Topic Word Generation Method and System
    2.
    发明申请
    Topic Word Generation Method and System 有权
    主题词生成方法与系统

    公开(公告)号：US20110231411A1

    公开(公告)日：2011-09-22

    申请号：US13058062

    申请日：2008-11-07

    申请人： Fraser Shein ,  Tom Nantais ,  Dan Li

    发明人： Fraser Shein ,  Tom Nantais ,  Dan Li

    IPC分类号： G06F17/30

    CPC分类号： G06F17/3071

    摘要： A method of, and system for, extracting topic words from a collection of documents across multiple and potentially very large number of domains. Documents are selected and ranked based on similarity with at least one seed word, which defines a topic. Seed words may be entered directly by a user or provided by another application. Keywords are extracted from documents determined to be a sufficiently good match to the topic and may be displayed to the user or used as input into word prediction or word analysis and display software. Documents are determined to be a sufficiently good match to the topic using an iterative algorithm starting with the best match and selecting documents containing keywords sufficiently similar to the previously selected documents.

    摘要翻译： 一种用于从跨越多个可能非常大数量的域的文档集合中提取主题词的方法和系统。 基于与定义主题的至少一个种子词的相似性来选择和排序文档。 种子字可以由用户直接输入或由另一应用提供。 从确定为与该主题足够好的匹配的文档中提取关键字，并且可以向用户显示或用作词预测或词分析和显示软件的输入。 文档被确定为与主题的足够好的匹配，使用从最佳匹配开始的迭代算法，并选择包含与先前选择的文档充分相似的关键字的文档。

    Procedure for denoising dual-axis swallowing accelerometry signals
    4.
    发明授权
    Procedure for denoising dual-axis swallowing accelerometry signals 有权
    去除双轴吞咽加速度信号的步骤

    公开(公告)号：US08992446B2

    公开(公告)日：2015-03-31

    申请号：US12819216

    申请日：2010-06-20

    申请人： Tom Chau ,  Ervin Sejdic

    发明人： Tom Chau ,  Ervin Sejdic

    IPC分类号： A61B5/103 ,  G06F17/18 ,  A61B5/00

    CPC分类号： G06F17/18 ,  A61B5/4205 ,  A61B5/7203 ,  A61B5/726

    摘要： Dual-axis swallowing accelerometry is an emerging tool for the assessment of dysphagia (swallowing difficulties). These signals however can be very noisy as a result of physiological and motion artifacts. A novel scheme for denoising those signals is proposed, i.e., a computationally efficient search for the optimal denoising threshold within a reduced wavelet subspace. To determine a viable subspace, the algorithm relies on the minimum value of the estimated upper bound for the reconstruction error. A numerical analysis of the proposed scheme using synthetic test signals demonstrated that the proposed scheme is computationally more efficient than minimum noiseless description length (MNDL) based de-noising. It also yields smaller reconstruction errors (i.e., higher signal-to-noise (SNR) ratio) than MNDL, SURE and Donoho denoising methods. When applied to dual-axis swallowing accelerometry signals, the proposed scheme improves the SNR values for dry, wet and wet chin tuck swallows. These results are important to the further development of medical devices based on dual-axis swallowing accelerometry signals.

    摘要翻译： 双轴吞咽加速度测量是评估吞咽困难（吞咽困难）的新兴工具。 然而，由于生理和运动伪像，这些信号可能非常嘈杂。 提出了一种用于去噪这些信号的新颖方案，即在减小的小波子空间内对最佳去噪阈值进行计算有效的搜索。 为了确定一个可行的子空间，该算法依赖于重建误差的估计上限的最小值。 使用合成测试信号的所提出的方案的数值分析表明，所提出的方案在计算上比基于最小无噪声描述长度（MNDL）的去噪更有效。 它还产生比MNDL，SURE和Donoho去噪方法更小的重建误差（即更高的信噪比（SNR））。 当应用于双轴吞咽加速度测量信号时，所提出的方案提高了干，湿和湿下巴吞咽吞咽的SNR值。 这些结果对于基于双轴吞咽加速度测量信号的医疗设备的进一步开发是重要的。

    Stable wheeled walker device
    5.
    发明授权
    Stable wheeled walker device 有权
    稳定的轮式步行器装置

    公开(公告)号：US08061376B2

    公开(公告)日：2011-11-22

    申请号：US12136882

    申请日：2008-06-11

    申请人： Stephen Ryan ,  Susan Hardy ,  William Johnson ,  Michael Doell

    发明人： Stephen Ryan ,  Susan Hardy ,  William Johnson ,  Michael Doell

    IPC分类号： A61H3/04 ,  B62B7/00

    CPC分类号： A61H3/04 ,  A61H2003/002 ,  A61H2003/046 ,  A61H2201/0161

    摘要： A posterior walker is disclosed comprising: a foldable, tubular frame; adjustable handles; wheels including anti-rollback wheels in the back and pivoting wheels in the front; a flexible, adjustable lower back support strap; features to adjust the handling and stability of the walker, to meet the mobility and standing needs of persons with unsteady gait and standing posture, namely an adjustable weighting means; and optionally backpack storage. In one embodiment, the adjustable weighting means is provided by use of weighted stability cuffs.

    摘要翻译： 公开了一种后行走器，包括：可折叠的管状框架; 可调手柄 车轮包括后部的防倒车轮和前部的回转轮; 柔软可调的下背支撑带; 调整步行者的处理和稳定性的特点，以适应不稳定步态和站立姿势的人的流动性和站立需求，即可调加权装置; 和可选的背包存储。 在一个实施例中，通过使用加权的稳定性袖带来提供可调加权装置。

    Signal trimming and false positive reduction of post-segmentation swallowing accelerometry data
    6.
    发明授权
    Signal trimming and false positive reduction of post-segmentation swallowing accelerometry data 有权

    公开(公告)号：US11147502B2

    公开(公告)日：2021-10-19

    申请号：US16074577

    申请日：2017-02-09

    申请人： HOLLAND BLOORVIEW KIDS REHABILITATION HOSPITAL

    发明人： Helia Mohammadi ,  Tom Chau

    IPC分类号： A61B5/00 ,  G16H50/20 ,  A61B7/00

    摘要： A method for quantifying swallowing function can include subjecting swallowing segments and non-swallowing segments of vibrational data to processing selected from the group consisting of adaptive trimming, false positive reduction, and a combination thereof. Preferably the vibrational data represents swallowing activity, is from a sensor positioned on the throat of a patient, and is associated with at least one axis selected from the group consisting of an anterior-posterior axis and a superior-inferior axis. Preferably a processing module operatively connected to the sensor performs the processing of the swallowing segments and the non-swallowing segments of the vibrational data. A device comprising a processing module and a sensor such as a single-axis accelerometer or a dual axis accelerometer can perform one or more steps of the method.

    System and method for detecting swallowing activity
    8.
    发明授权
    System and method for detecting swallowing activity 有权
    用于检测吞咽活动的系统和方法

    公开(公告)号：US09138171B2

    公开(公告)日：2015-09-22

    申请号：US11570740

    申请日：2005-06-17

    申请人： Thomas T. K. Chau ,  David J. Kenny ,  Michael J. Casas ,  Glenn Berall

    发明人： Thomas T. K. Chau ,  David J. Kenny ,  Michael J. Casas ,  Glenn Berall

    IPC分类号： A61B5/11 ,  A61B5/00

    CPC分类号： A61B5/11 ,  A61B5/4205 ,  A61B5/6822 ,  A61B5/7264 ,  A61B2562/0219

    摘要： A system and method for detecting swallowing activity is provided. In an embodiment, a method includes receiving an electronic signal from an acceleronic signal from an accelerometer that represents swallowing activity, extracting at least two features from the signal, classifying the signal as a type of swallowing activity based on the extracted features, and generating an output of the classification. Exemplary activities include swallows, aspirations, movement and vocal artifacts. By indicating whether an activity is a swallow or an aspiration, the manner in which a patient afflicted with an increased likelihood for aspirations is fed can be adjusted to increase the likelihood of achieving a swallow instead of an aspiration during feeding. In turn this could reduce hospitalizations for aspiration pneumonia in patients with acute or chronic injury.

    摘要翻译： 提供了一种用于检测吞咽活动的系统和方法。 在一个实施例中，一种方法包括从来自代表吞咽活动的加速度计的加速度信号接收电子信号，从信号中提取至少两个特征，基于所提取的特征将信号分类为吞咽活动类型，并产生 输出分类。 典型的活动包括燕子，愿望，运动和声乐文物。 通过指示活动是否是吞咽或吸入，可以调整患有增加的愿望可能性的患者的方式，以增加在进食期间实现吞咽而不是抽吸的可能性。 反过来，这可能会减少急性或慢性损伤患者的吸入性肺炎住院。