公开(公告)号：US20170113055A1

公开(公告)日：2017-04-27

申请号：US15344979

申请日：2016-11-07

申请人： Medtronic, Inc.

发明人： Raja N. GHANEM ,  Robert W. STADLER ,  Xusheng ZHANG

IPC分类号： A61N1/39 ,  A61B5/00 ,  A61N1/362 ,  A61B5/046 ,  A61B5/0464 ,  A61N1/05 ,  A61B5/042 ,  A61B5/04

CPC分类号： A61N1/3987 ,  A61B5/04011 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/0468 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/7203 ,  A61B5/7221 ,  A61B5/7239 ,  A61N1/05 ,  A61N1/3621 ,  A61N1/3925 ,  A61N1/3956 ,  Y10S128/901 ,  Y10S128/902

摘要： A method and apparatus for detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector, initiating charging of an energy storage device in response to the sensed cardiac signals, and determining whether a predetermined number of morphologies associated with cardiac signals sensed along the first sensing vector and the second sensing vector during corresponding sensing windows are indicative of the cardiac event.

公开(公告)号：US09629565B2

公开(公告)日：2017-04-25

申请号：US14819851

申请日：2015-08-06

申请人： CAMERON HEALTH, INC.

发明人： Krzysztof Z. Siejko

IPC分类号： A61B5/04 ,  A61B5/0456 ,  A61B5/042 ,  A61B5/00 ,  A61N1/39 ,  A61B5/0452 ,  G06F17/16 ,  A61N1/37 ,  A61B5/0245 ,  A61B5/046 ,  A61B5/0464

CPC分类号： A61B5/04012 ,  A61B5/0245 ,  A61B5/04011 ,  A61B5/04014 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/0456 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/4836 ,  A61B5/686 ,  A61B5/7246 ,  A61N1/3704 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3987 ,  G06F17/11 ,  G06F17/16 ,  G06F19/3418 ,  G16H10/60 ,  G16H40/67

摘要： Self-correlation enhancements and implementations are described. In particular, certain examples demonstrate the use of a peak selector to identify peaks of a self-correlation function which serve as candidate cardiac rates for an implantable medical device. The approach may enable an alternative calculation of cardiac rate in an implantable medical device as a stand-alone rate detector or as a double-check of other rate calculations.

公开(公告)号：US20170100592A1

公开(公告)日：2017-04-13

申请号：US15274919

申请日：2016-09-23

申请人： CYBERONICS, INC.

发明人： Imad Libbus ,  Badri Amurthur ,  Bruce H. KenKnight

IPC分类号： A61N1/36 ,  A61B5/00 ,  A61B5/0456 ,  A61B5/0464 ,  A61B5/0245 ,  A61B5/042

CPC分类号： A61N1/36114 ,  A61B5/0245 ,  A61B5/042 ,  A61B5/0456 ,  A61B5/0464 ,  A61B5/4836 ,  A61B5/686 ,  A61N1/36053 ,  A61N1/36139 ,  A61N1/3621

摘要： An implantable neurostimulator-implemented method for managing tachyarrhythmias through vagus nerve stimulation is provided. An implantable neurostimulator, including a pulse generator, is configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation (in both afferent and efferent directions) of action potentials within neuronal fibers of a patient's cervical vagus nerve. Operating modes of the pulse generator are stored. A maintenance dose of the electrical therapeutic stimulation is delivered to the vagus nerve via the pulse generator to restore cardiac autonomic balance through continuously-cycling, intermittent and periodic electrical pulses. A restorative dose of the electrical therapeutic stimulation is delivered to prevent initiation of or disrupt tachyarrhythmia through periodic electrical pulses delivered at higher intensity than the maintenance dose. The patient's normative physiology is monitored via a physiological sensor, and upon sensing a condition indicative of tachyarrhythmia, is switched to delivering the restorative dose to the vagus nerve.

公开(公告)号：US20170095665A1

公开(公告)日：2017-04-06

申请号：US15382853

申请日：2016-12-19

申请人： Medtronic, Inc.

发明人： Wade M. DEMMER ,  Troy E. JACKSON ,  Paul A. BELK

IPC分类号： A61N1/362 ,  A61B5/042 ,  A61B5/0456 ,  G06F19/00 ,  A61N1/368 ,  A61N1/39 ,  A61M5/172 ,  A61M5/142 ,  A61B5/00 ,  A61N1/365

CPC分类号： A61N1/3621 ,  A61B5/0031 ,  A61B5/0422 ,  A61B5/0456 ,  A61B5/4836 ,  A61B5/7282 ,  A61M5/142 ,  A61M5/14276 ,  A61M5/1723 ,  A61M2005/14208 ,  A61M2230/04 ,  A61M2230/40 ,  A61N1/365 ,  A61N1/368 ,  A61N1/3684 ,  A61N1/3962 ,  G06F19/00 ,  G06F19/3456 ,  G06F19/3468 ,  G06F19/3481 ,  G16H20/17

摘要： A medical device performs a method for computing an estimate of a physiological variable. The method includes sensing a physiological signal and measuring an event of the physiological signal. The device initializes a value of a long-term metric of the event measurement, wherein the long-term metric corresponds to a time interval correlated to a response time of the physiological variable to changes in the event. The estimate of the long-term metric is updated in a memory of the medical device using a previous long-term metric and a current measurement of the event. The device detects a need for computing the physiological variable and computes an estimate of the physiological variable using the updated long-term metric.

公开(公告)号：US09610035B2

公开(公告)日：2017-04-04

申请号：US12920876

申请日：2009-03-05

申请人： Ronaldus Maria Aarts ,  Mark Thomas Johnson

发明人： Ronaldus Maria Aarts ,  Mark Thomas Johnson

IPC分类号： A61M21/00 ,  A61B5/18 ,  A61B5/0205 ,  A61B5/024 ,  A61B5/0245 ,  A61B5/0456 ,  A61B5/16 ,  A61B5/00

CPC分类号： A61B5/18 ,  A61B5/0205 ,  A61B5/02405 ,  A61B5/0245 ,  A61B5/0456 ,  A61B5/165 ,  A61B5/486 ,  A61M21/00 ,  A61M2021/0022 ,  A61M2021/0055 ,  A61M2021/0066 ,  A61M2021/0083 ,  A61M2230/06 ,  A61M2230/42 ,  G06F19/00

摘要： A method of maintaining a state in a subject includes measuring one or more physiological parameters of the subject, calculating, using the measured parameter(s), a value, determining if the calculated value is below a lower threshold or above an upper threshold, and generating an output to the subject if the calculated value is determined to be below the lower threshold or above the upper threshold. In one embodiment, the generating an output to the subject includes generating a first output if the calculated value is determined to be below the lower threshold and generating a second output if the calculated value is determined to be above the upper threshold, the second output being different from the first output.

公开(公告)号：US20170086707A1

公开(公告)日：2017-03-30

申请号：US15295102

申请日：2016-10-17

申请人： University of Virginia Patent Foundation

发明人： Srijoy Mahapatra ,  George T. Gillies ,  Jason M. Tucker-Schwartz

IPC分类号： A61B5/06 ,  A61B5/00 ,  A61B5/04 ,  A61B5/0215 ,  A61B5/0402

CPC分类号： A61B5/065 ,  A61B5/02154 ,  A61B5/03 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0456 ,  A61B5/06 ,  A61B5/6848 ,  A61B5/7257

摘要： Systems and methods for epicardial electrophysiology and other procedures are provided in which the location of an access needle may be inferred according to the detection of different pressure frequencies in separate organs, or different locations, in the body of a subject. Methods may include inserting a needle including a first sensor into a body of a subject, and receiving pressure frequency information from the first sensor. A second sensor may be used to provide cardiac waveform information of the subject. A current location of the needle may be distinguished from another location based on an algorithm including the pressure frequency information and the cardiac waveform information.

公开(公告)号：US20170079552A1

公开(公告)日：2017-03-23

申请号：US15365872

申请日：2016-11-30

申请人： Bard Access Systems, Inc.

发明人： Sorin Grunwald

IPC分类号： A61B5/06 ,  A61B5/044 ,  A61B5/0408 ,  A61M25/09 ,  A61M25/00 ,  A61B5/00 ,  A61B5/04 ,  A61B5/042 ,  A61B5/0456 ,  A61M25/01

CPC分类号： A61B5/063 ,  A61B5/0006 ,  A61B5/04017 ,  A61B5/0408 ,  A61B5/042 ,  A61B5/044 ,  A61B5/0452 ,  A61B5/0456 ,  A61B5/06 ,  A61B5/7203 ,  A61B2034/2046 ,  A61B2034/2053 ,  A61M25/0026 ,  A61M25/003 ,  A61M25/0102 ,  A61M25/0147 ,  A61M25/0194 ,  A61M25/09 ,  A61M2025/0166 ,  A61M2025/09116

摘要： Devices and methods obtain and use endovascular electrograms (or electrocardiograms/ECGs) in a number of clinical applications and settings. In one embodiment, a method for locating an indwelling medical device within a vasculature of a patient includes identifying an endovascular ECG waveform complex from an endovascular ECG signal associated with the indwelling medical device, then calculating an absolute value of the energy of the endovascular ECG waveform complex over a predetermined segment thereof. A position of the medical device within the vasculature is then determined by observation of the absolute value of the energy of the predetermined segment of the endovascular ECG waveform complex.

公开(公告)号：US20170071523A1

公开(公告)日：2017-03-16

申请号：US15183484

申请日：2016-06-15

申请人： Samsung Electronics Company, Ltd.

发明人： Jawahar Jain ,  James Young ,  Cody Wortham ,  Sajid Sadi ,  Pranav Mistry

IPC分类号： A61B5/16 ,  A61B5/00 ,  A61B5/024

CPC分类号： A61B5/7278 ,  A61B5/0006 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/02405 ,  A61B5/02416 ,  A61B5/02438 ,  A61B5/0456 ,  A61B5/0533 ,  A61B5/165 ,  A61B5/486 ,  A61B5/4884 ,  A61B5/681 ,  A61B5/6833 ,  A61B5/7203 ,  A61B5/7225 ,  A61B5/7257 ,  A61B5/7275 ,  A61B5/7282 ,  A61B5/7405 ,  A61B5/742 ,  A61B5/7455 ,  A61B5/746 ,  A61B5/7475 ,  A61B2503/10 ,  A61B2560/0209 ,  G06F19/3418 ,  G16H40/63

摘要： A method for monitoring a stress level of a user may include determining, based on biological measurements on one or more physiological markers received in a first sampling mode, the stress level of the user, and then dynamically switching to a second sampling mode when it is determined that one or more of the physiological markers are above a threshold level, the second sampling mode being different from the first sampling mode.

摘要翻译： 用于监测用户的压力水平的方法可以包括基于在第一采样模式中接收的一个或多个生理标记上的生物测量来确定用户的压力水平，然后当它们是动态切换到第二采样模式时 确定一个或多个生理标记物高于阈值水平，第二采样模式与第一采样模式不同。

公开(公告)号：US09591988B2

公开(公告)日：2017-03-14

申请号：US13287268

申请日：2011-11-02

申请人： Shigehide Kuhara ,  Shuhei Nitta ,  Tomoyuki Takeguchi ,  Nobuyuki Matsumoto

发明人： Shigehide Kuhara ,  Shuhei Nitta ,  Tomoyuki Takeguchi ,  Nobuyuki Matsumoto

IPC分类号： A61B5/055 ,  A61B5/00 ,  G01R33/483 ,  G01R33/54 ,  A61B5/0456 ,  G01R33/567

CPC分类号： A61B5/055 ,  A61B5/0037 ,  A61B5/0044 ,  A61B5/0456 ,  G01R33/385 ,  G01R33/4833 ,  G01R33/543 ,  G01R33/5673

摘要： According to one embodiment, a MRI apparatus includes an acquisition unit, a reference section information calculating unit, a positioning unit and an imaging unit. The acquisition unit acquires frames of section image data including a heart from an object with use of magnetic resonance. The reference section information calculating unit calculates spatial positional information of a reference section of the heart based on the frames of the section image data. The positioning unit displays a reference section image of the heart on a display unit and performs positioning of an imaging part for imaging through the displayed reference section image of the heart. The reference section image is calculated from the frames of the section image data based on the positional information of the reference section. The imaging unit images the imaging part set by the positioning.

摘要翻译： 根据一个实施例，MRI装置包括获取单元，参考部分信息计算单元，定位单元和成像单元。 采集单元使用磁共振从物体获取包括心脏的区域图像数据的帧。 参考部分信息计算单元基于截面图像数据的帧来计算心脏的基准部分的空间位置信息。 定位单元在显示单元上显示心脏的参考部分图像，并且通过所显示的心脏的参考部分图像执行用于成像的成像部件的定位。 基于参考部分的位置信息，根据截面图像数据的帧计算参考部分图像。 成像单元通过定位对成像部件进行成像。

公开(公告)号：US20170055869A1

公开(公告)日：2017-03-02

申请号：US14840154

申请日：2015-08-31

申请人： SEUNG CHUL SHIN ,  HYUNG JONG KO ,  JUNG SU KIM ,  YONG IN PARK ,  WON HYUK JUNG ,  YUN CHEOL HAN

发明人： SEUNG CHUL SHIN ,  HYUNG JONG KO ,  JUNG SU KIM ,  YONG IN PARK ,  WON HYUK JUNG ,  YUN CHEOL HAN

IPC分类号： A61B5/0428 ,  A61B5/00

CPC分类号： A61B5/04288 ,  A61B5/0404 ,  A61B5/04325 ,  A61B5/0456 ,  A61B5/6803 ,  A61B5/681 ,  A61B5/6824 ,  A61B5/6833 ,  A61B5/7225 ,  A61B5/746

摘要： An ECG sensor chip used in a wearable appliance includes; a switch controlled by a switching signal, an amplifier that amplifies a difference between first and second ECG signals, and a location indicator that generates the switching signal. The switch passes either a first ECG signal or second ECG signal in response to the switching signal.

摘要翻译： 用于可穿戴式器具的ECG传感器芯片包括： 由开关信号控制的开关，放大第一和第二ECG信号之间的差异的放大器以及产生开关信号的位置指示器。 开关响应于开关信号而通过第一ECG信号或第二ECG信号。