公开(公告)号：US20200288997A1

公开(公告)日：2020-09-17

申请号：US16803672

申请日：2020-02-27

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  Sunipa Saha ,  Pramodsingh Hirasingh Thakur

IPC: A61B5/024 ,  A61B5/0205 ,  A61B5/08 ,  A61B5/00

Abstract: Systems and methods for detecting cardiac arrhythmia are discussed. An exemplary medical-device system includes an arrhythmia detector circuit that receives physiologic information, including respiration and heart beat information a patient, and determines whether a respiratory sinus arrhythmia (RSA) is present or absent using the respiration and the heart beat information. An indication of the presence or absence of RSA may be stored in a memory. The arrhythmia detector circuit can detect an AT episode using the indication of RSA.

公开(公告)号：US20250160665A1

公开(公告)日：2025-05-22

申请号：US18938967

申请日：2024-11-06

Applicant: Cardiac Pacemakers, Inc.

Inventor： Mojgan Goftari ,  Viktoria A. Averina ,  Jonathan Bennett Shute

IPC: A61B5/024 ,  A61B5/00

Abstract: Systems and methods for recognizing and tracking heart sound components are disclosed. An exemplary medical-device system includes a data receiver to receive heart sound information, and a heart sound recognition circuit to generate a representative heart sound segment such as an ensemble average of a selected portion of heart sound segments. The heart sound recognition circuit recognizes a heart sound component from the representative heart sound segment using a time-based tracking algorithm, and evaluates a performance index of the time-based heart sound tracking algorithm. Based on the performance index, a decision can be made whether or not to switch to a spectral-based tracking algorithm to recognize the heart sound component from the representative heart sound segment. A physiologic event detector can detect a cardiac event using the recognized heart sound component.

公开(公告)号：US12245876B2

公开(公告)日：2025-03-11

申请号：US18140056

申请日：2023-04-27

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  John D. Hatlestad ,  Scott R. Vanderlinde

IPC: A61B5/00 ,  A61B5/06 ,  A61N1/365

Abstract: A medical device includes a processor, an acceleration sensor, and memory. The acceleration sensor is configured to generate acceleration data that comprises a plurality of acceleration measurements. The memory comprises instructions that when executed by the processor, cause the processor to: obtain the acceleration data from the acceleration sensor; and determine, based on the acceleration data, that the medical device has flipped.

公开(公告)号：US12144591B2

公开(公告)日：2024-11-19

申请号：US17190277

申请日：2021-03-02

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  John D. Hatlestad ,  John H. Tangren

IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/024 ,  A61B5/08

Abstract: Embodiments herein relate to body vibration analysis systems and methods. In an embodiment, a body vibration analysis system is included having a first light source configured to illuminate a surface of the body from a first angle with a first set of lighted features and a second light source configured to illuminate a surface of the body from a second angle with a second set of lighted features, wherein the second set of lighted features are optically distinguishable from the first set of lighted features. The system further includes a camera configured to detect light reflected from the surface of the body and a control circuit configured to receive an input from the camera and assess spatial vibration as a function of location on the surface of the body. Other embodiments are also included herein.

公开(公告)号：US20240225557A1

公开(公告)日：2024-07-11

申请号：US18391571

申请日：2023-12-20

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  Bin Mi ,  John D. Hatlestad ,  Kevin Chu ,  Viktoria A. Averina

IPC: A61B5/00 ,  A61B5/11 ,  A61B5/113

CPC classification number: A61B5/7275 ,  A61B5/1116 ,  A61B5/1118 ,  A61B5/113 ,  A61B5/6823 ,  A61B5/7264 ,  A61B5/7282 ,  A61B2560/0223 ,  A61B2562/0219 ,  A61N1/36031

Abstract: Systems and methods for recognizing and classifying breathing patterns based on spatial analysis of chest wall or abdominal movement or acceleration are described. A medical-device system comprises a receiver circuit to receive respiration information of a patient, and a breath analyzer circuit to determine from the respiration information two or more spatial respiration components, such as accelerations of chest wall or abdominal movement in respective directions along the anatomical axes. The breath analyzer circuit can classify a breathing pattern as one of either chest breathing or diaphragmatic breathing based on the determined spatial respiration components. The classified breathing pattern can be used for detecting a physiological event such as worsening heart failure or for assessing the patient's risk of having metabolic disorders.

公开(公告)号：US11890101B2

公开(公告)日：2024-02-06

申请号：US16940250

申请日：2020-07-27

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  John D. Hatlestad ,  Sunipa Saha ,  David L Perschbacher

IPC: A61B5/333 ,  A61B7/04 ,  A61B5/00 ,  A61B5/283 ,  A61B5/363 ,  A61N1/365

CPC classification number: A61B5/333 ,  A61B5/0022 ,  A61B5/283 ,  A61B5/363 ,  A61B5/746 ,  A61B7/04 ,  A61B2560/0238 ,  A61B2562/0219 ,  A61B2562/0223 ,  A61N1/365

Abstract: Systems and methods for calibrating an orientation of an implantable device in a patient is described. An exemplary system includes a calibration circuit that can receive acceleration information sensed from an implantable medical device (IMD) implanted in a patient, and receive reference acceleration information sensed from a reference device associated with the patient. The acceleration information and the reference acceleration information are acquired when the patient assumes a first posture or in a first position. The calibration circuit determines a spatial relationship between an orientation of the IMD and a reference orientation of the reference device using the received acceleration information and the received reference acceleration information, and calibrate subsequent acceleration information sensed from the IMD using the determined spatial relationship to correct for the orientation of the IMD.

公开(公告)号：US11537702B2

公开(公告)日：2022-12-27

申请号：US16870435

申请日：2020-05-08

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  Bin Mi ,  Andrew Bomett ,  Michael Sheehan Seeberger ,  Grace Ann Wiechman ,  Kenneth P. Hoyme

IPC: G06F21/44 ,  G06F3/01 ,  G16H40/67 ,  A61B5/00 ,  H04W4/38

Abstract: Embodiments herein relate to sensor based authentication between an implantable medical device (IMD) and an external device. In an embodiment, the IMD includes a wireless communication module and an internal inertial measurement unit (IMU) capable of measuring vibrations, movement, or rotation. The IMD is configured to record an internal IMU signal from the internal IMU. The external device includes a wireless communication module and an external IMU. The external device is configured to record an external IMU signal from the external IMU. The system further includes a data processing system to receive a first level communication that can include the internal IMU signal, the external IMU signal, or both, compare data from the internal IMU signal with data from the external IMU signal, and authorize a second level communication based on results of the comparison step.

公开(公告)号：US11311244B2

公开(公告)日：2022-04-26

申请号：US16113438

申请日：2018-08-27

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  Bin Mi ,  Pramodsingh Hirasingh Thakur ,  Qi An

IPC: A61B5/00 ,  A61B7/04 ,  A61N1/37

Abstract: This document discusses, among other things, systems and methods to produce a composite heart sound signal of a patient using a first signal including heart sound information over a first physiologic interval and a second signal including heart sound information over the first physiologic interval.

公开(公告)号：US20220088399A1

公开(公告)日：2022-03-24

申请号：US17480702

申请日：2021-09-21

Applicant: Cardiac Pacemakers, Inc.

Inventor： Jonathan Bennett Shute ,  Kevin G. Wika ,  Michael Sheehan Seeberger ,  James F. Hiebert ,  Andrew Bomett ,  Michael Marxhausen

IPC: A61N1/372 ,  G16H40/67 ,  G16H10/60 ,  H04L29/06 ,  H04L9/32

Abstract: Embodiments herein relate to systems for tracking and maintaining the integrity of patient device data over extended periods of time. In a first aspect, a medical device system is included having an implantable device that can include a control circuit, a communication circuit, and one or more sensors. The system can also include an external device including a control circuit and a communication circuit. The external device can be configured to receive patient data from the implantable device and execute a hashing operation on units of received patient device data and one or more previous digest packets to create new digest packets. The external device can be configured to store the new digest packets and forward digest packets onto another device of the medical device system when requested to allow patient data to be authenticated. Other embodiments are also included herein.

公开(公告)号：US20210370075A1

公开(公告)日：2021-12-02

申请号：US17401123

申请日：2021-08-12

Applicant: Cardiac Pacemakers, Inc.

Inventor： Bin Mi ,  Jonathan Bennett Shute ,  Kenneth P. Hoyme ,  Grace Ann Wiechman ,  Michael Sheehan Seeberger ,  Andrew Bomett

IPC: A61N1/372 ,  A61B5/00 ,  H04W12/04 ,  H04L29/06 ,  H04W12/06 ,  H04W4/80 ,  A61M5/142 ,  A61M5/172 ,  A61B5/117

Abstract: A system and method for communication between an IMD and an external reader includes bringing a portion of a patient's body into contact with a device-body contact surface of an external reader. The reader transmits a first transdermal carrier wave from the contact surface into the patient's body, where the first carrier wave includes a request for communication with the IMD. The transdermal carrier waves are electrical conductive waves, optical waves, or acoustic waves. Upon detection of the first carrier wave, the IMD transmits a second transdermal carrier wave including a request for an access key from the reader and the reader replies by transmitting a third transdermal carrier wave including the access key back to the IMD. If the access key is valid, the IMD transmits information by radio frequency (RF) in an RF communication mode or a fourth transdermal carrier wave including data from the IMD.