公开(公告)号：US20220240859A1

公开(公告)日：2022-08-04

申请号：US17726272

申请日：2022-04-21

Applicant: Apple Inc.

Inventor： Tyler S. Bushnell ,  Steven J. Martisauskas ,  Erik G. de Jong ,  Andrzej T. Baranski ,  Serhan O. lsikman ,  Steven J. Banaska ,  Todd K. Whitehurst ,  Ming L. Sartee

IPC: A61B5/00 ,  G01L1/14

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

公开(公告)号：US20220151560A1

公开(公告)日：2022-05-19

申请号：US17592917

申请日：2022-02-04

Applicant: Apple Inc.

Inventor： Sorin V. Dusan ,  Daniel J. Culbert ,  Todd K. Whitehurst

IPC: A61B5/00 ,  A61B5/024 ,  A61B5/0533 ,  A61B5/318

Abstract: A wearable device that attaches to a body part of a user via an attachment member operates in at least a connected and a disconnected state. One or more sensors located in the wearable device and/or the attachment member detect the user's body part when present. Such detection may only be performed when the attachment member is in a connected configuration and may be used to switch the wearable device between the connected and disconnected states. In this way, the wearable device operates in the connected state when worn by a user and in the disconnected state when not worn by the user.

公开(公告)号：US20200367767A1

公开(公告)日：2020-11-26

申请号：US16990650

申请日：2020-08-11

Applicant: Apple Inc.

Inventor： Thomas J. Sullivan ,  Wren Nancy Dougherty ,  Richard C. Kimoto ,  Erno Klaassen ,  Ravi K. Narasimhan ,  Stephen J. Waydo ,  Todd K. Whitehurst ,  Derek Park-Shing Young ,  Santiago Quijano ,  Zijing Zeng

IPC: A61B5/021 ,  A61B5/0408 ,  A61B5/1455 ,  A61B5/00

Abstract: A pulse transit time is measured non-invasively and used to calculate a blood pressure value. A method of determining one or more blood pressure values includes propagating an alternating drive current through a thorax of a subject via electrodes located on a wrist-worn device. Resulting voltage levels of the subject are sensed by the wrist-worn device. The voltage levels are processed to detect when a volume of blood is ejected from the left ventricle. Output from a pulse arrival sensor coupled to the wrist-worn device is processed to detect when a blood pressure pulse generated by ejection of the volume of blood from the left ventricle arrives at the wrist. A pulse transit time (PTT) for transit of the blood pressure pulse from the left ventricle to the wrist is calculated. One or more blood pressure values for the subject are determined based on the PTT.

公开(公告)号：US10772512B2

公开(公告)日：2020-09-15

申请号：US15680931

申请日：2017-08-18

Applicant: Apple Inc.

Inventor： Erno H. Klaassen ,  Wren Nancy Dougherty ,  Richard C. Kimoto ,  Ravi Narasimhan ,  Thomas J. Sullivan ,  Stephen J. Waydo ,  Todd K. Whitehurst ,  Santiago Quijano ,  Derek Park-Shing Young ,  Zijing Zeng

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/11 ,  A61B5/1455 ,  G06F19/00

Abstract: The present invention provides non-invasive devices, methods, and systems for determining a pressure of blood within a cardiovascular system of a user, the cardiovascular system including a heart and the user having a wrist covered by skin. More particularly, the present invention discloses a variety of wrist-worn devices having a variety of sensors configured to non-invasively engage the skin on the wrist of the user for sensing a variety of user signals from the cardiovascular system of the user. Generally, approaches disclosed herein may passively track blood pressure values without any interaction required on the part of the user or may allow for on demand or point measurements of blood pressure values by having a user actively interact with the sensors of the wrist-worn device. Approaches disclosed herein further allow for absolute blood pressure values to be determined directly without the requirement for any periodic calibrations or for relative blood pressure values to be tracked so as to provide relative blood pressure indices.

公开(公告)号：US10285645B2

公开(公告)日：2019-05-14

申请号：US14867311

申请日：2015-09-28

Applicant: Apple Inc.

Inventor： Tyler S. Bushnell ,  Steven J. Martisauskas ,  Erik G. de Jong ,  Andrzej T. Baranski ,  Serhan O. Isikman ,  Steven J. Banaska ,  Todd K. Whitehurst ,  Ming L. Sartee

IPC: A61B5/00 ,  G01L1/14 ,  A43C7/00 ,  A61B5/021

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

公开(公告)号：US20170086743A1

公开(公告)日：2017-03-30

申请号：US14867311

申请日：2015-09-28

Applicant: Apple Inc.

Inventor： Tyler S. Bushnell ,  Steven J. Martisauskas ,  Erik G. de Jong ,  Andrzej T. Baranski ,  Serhan O. Isikman ,  Steven J. Banaska ,  Todd K. Whitehurst ,  Ming L. Sartee

IPC: A61B5/00 ,  A61B5/022 ,  A61B5/0205 ,  G01L1/22 ,  G01L1/14

CPC classification number: A61B5/6843 ,  A61B5/021 ,  A61B5/412 ,  A61B5/4872 ,  A61B5/681 ,  A61B2562/0261 ,  G01L1/142

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.