公开(公告)号：US20190150785A1

公开(公告)日：2019-05-23

申请号：US16251146

申请日：2019-01-18

Applicant: ENDOTRONIX, INC.

Inventor： Mohammad Faisal Zaman ,  Jeffrey Fong ,  Julian Chee ,  Tyler Panian ,  Michael Nagy

IPC: A61B5/07 ,  A61B5/0215 ,  A61B5/145 ,  A61B5/03 ,  A61B5/00 ,  A61B5/01

Abstract: Disclosed is an implant and method of making an implant. The implant having a housing that defines a cavity. The housing includes a sensor comprising a base attached to a diaphragm wherein said base may be positioned within said cavity. The sensor may be a capacitive pressure sensor. The diaphragm may be connected to the housing to hermetically seal said housing. The sensor may include electrical contacts positioned on the diaphragm. The attachment between the base and the diaphragm may define a capacitive gap and at least one discontinuity configured to enhance at least one performance parameter of said implant.

公开(公告)号：US20140306807A1

公开(公告)日：2014-10-16

申请号：US13860851

申请日：2013-04-11

Applicant: Endotronix, Inc.

Inventor： Harry D. Rowland ,  Roger Dwight Watkins ,  Balamurugan Sundaram ,  Brian Paul ,  In Soo Ahn ,  Michael Nagy

IPC: G08C19/16

CPC classification number: H04Q9/00

Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits a narrowband, fixed frequency excitation pulse to cause the wireless sensor to generate a ring signal. The ring signal corresponds to the value of the physical parameter being sensed. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The low power, simple circuitry required to generate the excitation pulse allows the reader to be a small, battery operated unit. Alternative methods of frequency determination are also disclosed.

Abstract translation: 提供无线传感器读取器以与无线传感器接口。 无线传感器读取器传输窄带固定频率激励脉冲，使无线传感器产生振铃信号。 振铃信号对应于被感测的物理参数的值。 无线传感器读取器接收并放大振铃信号并将信号发送到锁相环。 锁相环中的压控振荡器锁定在环形信号频率上，并以与环形信号频率相关的频率产生计数信号。 压控振荡器处于保持模式，其中控制电压保持恒定，以允许确定计数信号频率。 产生激励脉冲所需的低功耗，简单的电路允许读取器是一个小的，电池供电的单元。 还公开了频率确定的替代方法。

公开(公告)号：US20140028467A1

公开(公告)日：2014-01-30

申请号：US14041738

申请日：2013-09-30

Applicant: Endotronix, Inc.

Inventor： Michael Nagy ,  Harry D. Rowland ,  Roger Dwight Watkins ,  Balamurugan Sundaram

IPC: G08C17/02

CPC classification number: H04Q9/00 ,  A61B5/0031 ,  A61B5/0215 ,  A61B5/6882 ,  A61B5/7225 ,  G08C17/02 ,  H04Q2209/47

Abstract: A wireless sensor reader is provided to interface with a wireless sensor. The wireless sensor reader transmits an excitation pulse to cause the wireless sensor to generate a ring signal. The wireless sensor reader receives and amplifies the ring signal and sends the signal to a phase-locked loop. A voltage-controlled oscillator in the phase-locked loop locks onto the ring signal frequency and generates a count signal at a frequency related to the ring signal frequency. The voltage-controlled oscillator is placed into a hold mode where the control voltage is maintained constant to allow the count signal frequency to be determined. The reader uses an ambient reading or other information to select a subset of the possible ring signal frequencies, and tunes or adjusts its circuits and algorithms to focus on that subset.

Abstract translation: 提供无线传感器读取器以与无线传感器接口。 无线传感器读取器传送激励脉冲以使无线传感器产生振铃信号。 无线传感器读取器接收并放大振铃信号并将信号发送到锁相环。 锁相环中的压控振荡器锁定在环形信号频率上，并以与环形信号频率相关的频率产生计数信号。 压控振荡器处于保持模式，其中控制电压保持恒定，以允许确定计数信号频率。 阅读器使用环境读数或其他信息来选择可能的环形信号频率的子集，并调整或调整其电路和算法以集中在该子集上。