公开(公告)号：US20190298179A1

公开(公告)日：2019-10-03

申请号：US16351018

申请日：2019-03-12

Applicant: Nokia Technologies Oy

Inventor： Satu RAJALA ,  Niku OKSALA ,  Harri LINDHOLM

IPC: A61B5/02 ,  A61B5/00 ,  A61B5/11

Abstract: An apparatus and method includes: obtaining a ballistocardiographic signal for a subject; determining an I-J interval from the ballistocardiographic signal, including detecting peaks and troughs in the ballistocardiographic signal; and providing an output indicative of a left ventricular ejection time based on the determined I-J interval.

公开(公告)号：US20170360334A1

公开(公告)日：2017-12-21

申请号：US15528178

申请日：2015-12-14

Applicant: Nokia Technologies Oy

Inventor： Niku OKSALA ,  Antti VEHKAOJA

IPC: A61B5/11 ,  A61B5/0205 ,  A61B5/0402 ,  A61B5/00 ,  A61B5/01 ,  A61B5/145 ,  A61B5/024 ,  A61B5/0245 ,  A61B5/021 ,  A61B5/08

CPC classification number: A61B5/1106 ,  A61B5/01 ,  A61B5/0205 ,  A61B5/021 ,  A61B5/02416 ,  A61B5/0245 ,  A61B5/0402 ,  A61B5/0816 ,  A61B5/1104 ,  A61B5/14542 ,  A61B5/4821 ,  A61B5/6823 ,  A61B5/6824 ,  A61B5/7282 ,  A61B5/7405 ,  A61B5/742 ,  A61B5/7455 ,  A61B2562/0219

Abstract: An arrangement and device for determining a state of consciousness of a patient includes an accelerometer or other feedback detection device for detecting movements or other responses of the patient. In addition the arrangement and device includes visual, auditory and physical stimulus generators, and are configured to emit of a visual, auditory and/or physical stimulus for a given time period. In addition a response signal is provided of the patient to the emitted stimulus, where said response signal is recorded using said accelerometer or said feedback detection device. In addition the response of the patient is determined and the patient is labelled as alert (A), responsive to verbal or auditory stimulus (V), responsive to pain or physical stimulus (P) or unconscious patient (U) based on the response.

公开(公告)号：US20170143216A1

公开(公告)日：2017-05-25

申请号：US15318995

申请日：2015-06-17

Applicant: Nokia Technologies Oy

Inventor： Niku OKSALA ,  Antti VEHKAOJA ,  Sami MELKONIEMI

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/024

Abstract: An arrangement (100) and a device (101) for determining pulse transit time comprise an accelerometer (102) and a pulse wave sensor (103) for sensing a pulse wave. The accelerometer (102) determines a cardiac systole, and the pulse wave sensor (103) determines the pulse wave induced by said cardiac systole ejection. A first trigger signal is determined at the moment of said determined cardiac systole, and a second trigger signal at the moment of said determined pulse wave. The pulse transit time is then determined as a time difference between said first and second trigger signals.