公开(公告)号：US20080021289A1

公开(公告)日：2008-01-24

申请号：US11780903

申请日：2007-07-20

Applicant: Cheng Zhang ,  Thomas Piaget ,  Abhijeet Chavan ,  Keith Maile ,  Ron Balczewski

Inventor： Cheng Zhang ,  Thomas Piaget ,  Abhijeet Chavan ,  Keith Maile ,  Ron Balczewski

IPC: A61B5/00

CPC classification number: A61N1/37217 ,  A61B5/0028 ,  A61B5/0031 ,  A61B5/021 ,  A61B5/14532 ,  A61B8/4281

Abstract: An implantable medical device is adapted for implantation into body tissue. The implantable medical device comprises a housing and a header coupled to the housing. A cavity is located in the header. An ultrasonic transducer adapted to transmit acoustic waves at a communication frequency is located in the cavity, and a coupling surface is interposed between the ultrasonic transducer and the body tissue and is acoustically coupled with the body tissue.

Abstract translation: 可植入医疗装置适于植入人体组织。 可植入医疗装置包括壳体和联接到壳体的头部。 一个空腔位于头部。 适于以通信频率传输声波的超声波换能器位于空腔中，并且耦合表面插入在超声换能器和身体组织之间并与身体组织进行声学耦合。

公开(公告)号：US20060131495A1

公开(公告)日：2006-06-22

申请号：US10905151

申请日：2004-12-17

Applicant: James Logsdon ,  Pedro Castillo-Borelly ,  Abhijeet Chavan ,  Michael Donahue ,  Deron Slaughter

Inventor： James Logsdon ,  Pedro Castillo-Borelly ,  Abhijeet Chavan ,  Michael Donahue ,  Deron Slaughter

IPC: G01D18/00

CPC classification number: G01J5/12

Abstract: A method and apparatus for evaluating the functionality and sensitivity of an infrared sensor to infrared radiation. The method and apparatus are adapted for testing an infrared sensor having a diaphragm containing a heating element and a transducer that generates an output responsive to temperature. The method entails placing the infrared sensor in a controlled environment, and then exposing the diaphragm of the sensor to different levels of thermal radiation so as to obtain outputs of the transducer at different output levels. In the absence of exposure of the diaphragm to thermal radiation, flowing current through the heating element at different input levels so that the output of the transducer returns to the different output levels obtained using thermal radiation, the input difference between the input levels can be computed and used to assess the functionality and the sensitivity of the sensor.

Abstract translation: 一种用于评估红外传感器对红外辐射的功能和灵敏度的方法和装置。 该方法和装置适于测试具有包含加热元件的振动膜和产生响应于温度的输出的换能器的红外传感器。 该方法需要将红外传感器放置在受控的环境中，然后将传感器的膜片暴露于不同的热辐射水平，以便获得不同输出电平的换能器的输出。 在没有将隔膜暴露于热辐射的情况下，流过不同输入电平的加热元件的电流，使得换能器的输出返回到使用热辐射获得的不同输出电平，可以计算输入电平之间的输入差 并用于评估传感器的功能和灵敏度。

公开(公告)号：US20070250126A1

公开(公告)日：2007-10-25

申请号：US11380112

申请日：2006-04-25

Applicant: Keith Maile ,  Abhijeet Chavan ,  Jeffrey Von Arx ,  Cheng Zhang

Inventor： Keith Maile ,  Abhijeet Chavan ,  Jeffrey Von Arx ,  Cheng Zhang

IPC: A61N1/362

CPC classification number: A61N1/37252 ,  A61B5/0031 ,  A61B2560/0209 ,  A61N1/3706 ,  A61N1/37217 ,  A61N1/37264 ,  A61N1/37288

Abstract: A system and method for waking up an implantable medical device (“IMD”) from a sleep state in which power consumption by the IMD is essentially zero. The IMD may be adapted to perform one or more designated measurement and/or therapeutic functions. In one embodiment, the IMD includes a wake-up sensor that is adapted to sense the presence or absence of a wake-up field generated by another IMD or an external device. The wake-up field may, in some embodiments, be an electromagnetic field, a magnetic field, or a physiologically sub-threshold excitation current (i.e., E-field). Upon sensing by the wake-up sensor of the wake-up field, other components of the IMD, which may include a controller, a sensing and/or therapy module, and/or a communications module, are awakened to perform one or more designated functions.

Abstract translation: 一种用于将可植入医疗装置（“IMD”）从睡眠状态唤醒的系统和方法，其中IMD的功率消耗基本为零。 IMD可以适于执行一个或多个指定的测量和/或治疗功能。 在一个实施例中，IMD包括适于感测由另一IMD或外部设备产生的唤醒场的存在或不存在的唤醒传感器。 在一些实施例中，唤醒场可以是电磁场，磁场或生理学亚阈值激励电流（即，电场）。 唤醒传感器感应唤醒场后，可以包括控制器，感测和/或治疗模块和/或通信模块的IMD的其他部件被唤醒以执行一个或多个指定的 功能。

公开(公告)号：US5649149A

公开(公告)日：1997-07-15

申请号：US284347

申请日：1994-08-01

Applicant: Charles D. Stormon ,  Abhijeet Chavan ,  Nikos B. Troullinos ,  Raymond M. Leong

Inventor： Charles D. Stormon ,  Abhijeet Chavan ,  Nikos B. Troullinos ,  Raymond M. Leong

IPC: G06F17/30 ,  G06F12/02 ,  G06F13/00

CPC classification number: G06F17/30982

Abstract: An associative processing memory system for concurrent data searching or processing includes a content addressable memory (CAM) array, a general register block, an interface register logic block, and a general control block. The CAM array is accessed for read or write by a select vector generated by the general register logic block. The select vector is selected through a multiplexer from at least four sources: the match latch, the multiple response resolver, the general purpose logic block and a supplies one unit. The interface register logic block provides input/output data registers, mask register, command register, and control/status register. The general control block generates control signals to the CAM system in response to bus signals. The match operation for the CAM array can be performed on all words in a single operation. A set of CAM instructions is used to control CAM operations including data movement, shifting, read/write, and match.

Abstract translation: 用于并行数据搜索或处理的关联处理存储器系统包括内容可寻址存储器（CAM）阵列，通用寄存器块，接口寄存器逻辑块和通用控制块。 通过由通用寄存器逻辑块生成的选择向量来访问CAM阵列以进行读取或写入。 通过多路复用器从至少四个源选择选择向量：匹配锁存器，多响应解析器，通用逻辑块和供应一个单元。 接口寄存器逻辑块提供输入/输出数据寄存器，掩码寄存器，命令寄存器和控制/状态寄存器。 一般控制块响应于总线信号产生到CAM系统的控制信号。 可以在单个操作中对所有单词执行CAM阵列的匹配操作。 一组CAM指令用于控制CAM操作，包括数据移动，移位，读/写和匹配。

公开(公告)号：US20050064619A1

公开(公告)日：2005-03-24

申请号：US10955128

申请日：2004-09-30

Applicant: Abhijeet Chavan ,  James Logsdon ,  Dan Chilcott ,  John Christenson ,  Robert Speck

Inventor： Abhijeet Chavan ,  James Logsdon ,  Dan Chilcott ,  John Christenson ,  Robert Speck

IPC: H01L27/16 ,  H01L21/00

CPC classification number: B81B3/0072 ,  B81B2201/0278 ,  B81B2203/0127 ,  G01J5/02 ,  G01J5/024 ,  G01J5/12 ,  H01L27/16 ,  H01L2224/48463

Abstract: A process using integrated sensor technology in which a micromachined sensing element and signal processing circuit are combined on a single semiconductor substrate to form, for example, an infrared sensor. The process is based on modifying a CMOS process to produce an improved layered micromachined member, such as a diaphragm, after the circuit fabrication process is completed. The process generally entails forming a circuit device on a substrate by processing steps that include forming multiple dielectric layers and at least one conductive layer on the substrate. The dielectric layers comprise an oxide layer on a surface of the substrate and at least two dielectric layers that are in tension, with the conductive layer being located between the two dielectric layers. The surface of the substrate is then dry etched to form a cavity and delineate the diaphragm and a frame surrounding the diaphragm. The dry etching step terminates at the oxide layer, such that the diaphragm comprises the dielectric layers and conductive layer. A special absorber is preferably fabricated on the diaphragm to promote efficient absorption of incoming infrared radiation.

Abstract translation: 使用集成传感器技术的方法，其中微机械感测元件和信号处理电路组合在单个半导体衬底上以形成例如红外传感器。 该方法基于在电路制造过程完成之后修改CMOS工艺以产生改进的分层微加工构件，例如隔膜。 该方法通常需要通过处理步骤在衬底上形成电路器件，该步骤包括在衬底上形成多个电介质层和至少一个导电层。 电介质层包括在衬底的表面上的氧化物层和处于张力的至少两个电介质层，导电层位于两个电介质层之间。 然后将基板的表面干蚀刻以形成空腔并描绘膜片和围绕隔膜的框架。 干蚀刻步骤终止于氧化物层，使得隔膜包括电介质层和导电层。 优选地在隔膜上制造特殊的吸收体以促进进入的红外辐射的有效吸收。

公开(公告)号：US07742815B2

公开(公告)日：2010-06-22

申请号：US11223398

申请日：2005-09-09

Applicant: Rodney Salo ,  Abhijeet Chavan

Inventor： Rodney Salo ,  Abhijeet Chavan

IPC: A61N1/36

CPC classification number: A61N1/36564 ,  A61N1/3621 ,  A61N1/3925

Abstract: A system and method for administering a therapeutic treatment to the heart, includes a pressure sensor positioned in the pulmonary artery, an implantable medical device located remotely from the sensor, and communication means for communicating pressure data from the pressure sensor to the implantable medical device. The system includes a control module operatively coupled to the implantable medical device. The control module is adapted for comparing the pulmonary arterial pressure data to a pre-programmed value, adjusting an operating parameter of the implantable medical device based on the relationship of the pulmonary arterial pressure to the pre-programmed value, and repeating this process until the relationship between the pulmonary arterial pressure data and the pre-programmed value is such that no adjustment is necessary.

Abstract translation: 用于向心脏施用治疗性治疗的系统和方法包括定位在肺动脉中的压力传感器，远离传感器定位的可植入医疗装置以及用于将压力数据从压力传感器传送到可植入医疗装置的连通装置。 该系统包括可操作地耦合到可植入医疗装置的控制模块。 控制模块适于将肺动脉压数据与预编程值进行比较，基于肺动脉压与预编程值的关系来调整可植入医疗装置的操作参数，并重复该过程直到 肺动脉压数据与预编程值之间的关系使得不需要调整。

公开(公告)号：US20080021510A1

公开(公告)日：2008-01-24

申请号：US11781023

申请日：2007-07-20

Applicant: Bin Mi ,  Abhijeet Chavan ,  John Tangren

Inventor： Bin Mi ,  Abhijeet Chavan ,  John Tangren

IPC: A61N1/362

CPC classification number: A61N1/37217

Abstract: An implantable medical device comprising a housing and a limiting structure defining a resonant region in the housing. An acoustic transducer is connected to the limiting structure and extends into the resonant region so that the resonant region mechanically amplifies the deformation of the acoustic transducer at a resonant frequency. An implantable medical device comprising a housing and a limiting structure defining a resonant region in the housing. An acoustic transducer having the shape of a beam is mechanically coupled to the limiting structure and partially extends into the resonant region so that the resonant region mechanically amplifies the deformation of the acoustic transducer at a resonant frequency. An implantable medical device comprising a housing, an acoustic transducer coupled to the housing, and a means for mechanically amplifying the deformation of the acoustic transducer at a resonant frequency. The means defines a resonant region in the housing.

Abstract translation: 一种可植入医疗装置，其包括壳体和限定壳体中的谐振区域的限制结构。 声学换能器连接到限制结构并延伸到谐振区域，使得谐振区域以谐振频率机械放大声学换能器的变形。 一种可植入医疗装置，其包括壳体和限定壳体中的谐振区域的限制结构。 具有光束形状的声换能器机械耦合到限制结构，并且部分地延伸到谐振区域中，使得谐振区域以谐振频率机械放大声换能器的变形。 一种可植入医疗装置，包括壳体，耦合到壳体的声换能器，以及用于以谐振频率机械放大声换能器的变形的装置。 该装置限定壳体中的谐振区域。

公开(公告)号：US20060262829A1

公开(公告)日：2006-11-23

申请号：US11130978

申请日：2005-05-17

Applicant: Gregory Manlove ,  Pedro Castillo-Borelly ,  James Logsdon ,  Jack Johnson ,  Timothy Vas ,  Abhijeet Chavan

Inventor： Gregory Manlove ,  Pedro Castillo-Borelly ,  James Logsdon ,  Jack Johnson ,  Timothy Vas ,  Abhijeet Chavan

IPC: G01K1/16

CPC classification number: G01J5/16

Abstract: An infrared temperature sensing device is provided for sensing temperature of a target object. The sensing device includes a semiconductor substrate, a thermopile infrared sensor mounted to the substrate for sensing temperature of a remote target object, and temperature sensing circuitry mounted to the substrate. The temperature sensing circuitry generates a temperature dependent signal substantially linearly related to ambient temperature of the substrate. The sensing device further includes summing circuitry for generating a signal indicative of infrared sensed temperature as a function of the ambient temperature.

Abstract translation: 提供一种用于感测目标物体的温度的红外温度检测装置。 感测装置包括半导体衬底，安装到衬底的热电堆红外传感器，用于感测远程目标物体的温度，以及安装到衬底的温度感测电路。 温度感测电路产生与衬底的环境温度基本线性相关的温度相关信号。 感测装置还包括用于产生指示作为环境温度的函数的红外感测温度的信号的求和电路。

公开(公告)号：US20060122667A1

公开(公告)日：2006-06-08

申请号：US11186245

申请日：2005-07-21

Applicant: Abhijeet Chavan ,  Jeffrey Von Arx ,  Scott Mazar

Inventor： Abhijeet Chavan ,  Jeffrey Von Arx ,  Scott Mazar

IPC: A61N1/08

CPC classification number: A61M5/14276 ,  A61M2205/3523 ,  A61M2205/3569 ,  A61M2205/8212 ,  A61N1/37276 ,  A61N1/378 ,  A61N1/3962 ,  A61N1/3975

Abstract: A method carried out by an implantable medical device (IMD) for coordinating performance of one or more designated functions includes waiting in a low-power state for a predetermined event, detecting the predetermined event, and, responsive to detecting the predetermined event, searching for a wake-up command from a coordinating device implanted in the human body. The method further includes, receiving the wake-up command, and responsive to receiving the wake-up command, performing the one or more designated functions, and returning to the low-power state. A system includes a network of one or more implantable medical devices (IMDs) implanted in a human body. The system includes a satellite IMD operable to change between a plurality of power states, search for a wake-up command, and transmit an identification signal. The system may include a primary unit operable to receive the signal and coordinate a wake-up time based on the signal.

公开(公告)号：US20100222833A1

公开(公告)日：2010-09-02

申请号：US12778779

申请日：2010-05-12

Applicant: Rodney Salo ,  Abhijeet Chavan

Inventor： Rodney Salo ,  Abhijeet Chavan

IPC: A61N1/39 ,  A61B5/02 ,  A61M5/00 ,  A61N1/365

CPC classification number: A61N1/36564 ,  A61N1/3621 ,  A61N1/3925

Abstract: A system and method for administering a therapeutic treatment to the heart includes a pressure sensor positioned in the pulmonary artery, an implantable medical device located remotely from the sensor, and communication means for communicating pressure data from the pressure sensor to the implantable medical device. The system includes a control module operatively coupled to the implantable medical device. The control module is adapted for comparing the pulmonary arterial pressure data to a pre-programmed value, adjusting an operating parameter of the implantable medical device based on the relationship of the pulmonary arterial pressure to the pre-programmed value, and repeating this process until the relationship between the pulmonary arterial pressure data and the pre-programmed value is such that no adjustment is necessary.

Abstract translation: 用于向心脏施用治疗性治疗的系统和方法包括定位在肺动脉中的压力传感器，远离传感器定位的可植入医疗装置，以及用于将来自压力传感器的压力数据传送到可植入医疗装置的连通装置。 该系统包括可操作地耦合到可植入医疗装置的控制模块。 控制模块适于将肺动脉压数据与预编程值进行比较，基于肺动脉压与预编程值的关系来调整可植入医疗装置的操作参数，并重复该过程直到 肺动脉压数据与预编程值之间的关系使得不需要调整。