公开(公告)号：US11202582B2

公开(公告)日：2021-12-21

申请号：US16323560

申请日：2017-08-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Simone Cornelia Maria Anna Ordelman ,  Cristian Nicolae Presura ,  Rick Bezemer ,  Calina Ciuhu

IPC: A61B5/1455 ,  A61B5/026 ,  A61B5/00

Abstract: The present invention relates to a device (10), system (1) and method (200) for use in blood oxygen saturation measurement of a subject. To enable blood oxygen saturation measurements with improved reliability, a processing device (10) is presented comprising an input (11) for receiving first and second detection data of a tissue region of the subject, said first detection data being data acquired over time by detecting radiation at a first wavelength (λ1) and at a second wavelength (λ2) received from said tissue region; said second detection data being data acquired over time by detecting radiation at the first wavelength and at the second wavelength received from said tissue region in response to coherent light at the first wavelength and coherent light at the second wavelength being emitted towards the tissue region; a PPG unit (12) for deriving, from said first detection data, a first PPG signal indicative of an absorption of light within the tissue region at the first wavelength, and a second PPG signal indicative of an absorption of light within the tissue region at the second wavelength; a flow unit (13) for deriving, from said second detection data, a first flow signal indicative of a flow of light scattering particles within the tissue region probed at the first wavelength, and a second flow signal indicative of a flow of light scattering particles within the tissue region probed at the second wavelength; and a processing unit (14) for correcting said PPG signals based on said flow signals and/or for providing a feedback signal based on a comparison of the first and second flow signals.

公开(公告)号：US10987008B2

公开(公告)日：2021-04-27

申请号：US16060567

申请日：2016-12-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Mukul Julius Rocque ,  Mohammed Meftah

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/1171 ,  G06K9/00

Abstract: A wearable device for continuous health monitoring, the device comprising: a band for conforming to a first body part of a subject; an imaging unit, the imaging unit being connected in the band, wherein the imaging unit is configured to acquire a sequence of images from the subject's body, wherein the device is operable in a contact mode and in a non-contact mode, i. wherein in the contact mode the imaging unit is in substantial close 5 proximity to the first body part of the subject so as to acquire the sequence of images of an area of the first body part; wherein in the non-contact mode the imaging unit is in a remote position to acquire the sequence of images of a second body part of the subject; a controller unit configured to derive a PPG signal from the acquired sequence of images according to a first process when the device is in the contact mode and according to a second process when 10 the device is in the non-contact mode, the PPG signal being indicative of the health of the subject; wherein the controller unit, during operation of the wearable device, is configured to check at least one pre-determined condition in order to determine if the PPG signal is to be derived according to the first process or the second process.

公开(公告)号：US10687851B2

公开(公告)日：2020-06-23

申请号：US15513174

申请日：2015-09-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Linda Goverdina Maria Beijens ,  Martin Jurna ,  Willem Verkruijsse ,  Hendrik Halling Van Amerongen

IPC: A61B17/54 ,  A61B17/00 ,  A61B17/30

Abstract: The present application relates to a treatment head (30) for performing a microdermabrasion procedure on a subject's skin (40). The treatment head (30) has a skin contact surface (32) which is positionable against the subject's skin (40) and at least one vacuum aperture (50) at the skin contact surface (32). The at least one vacuum aperture (50) defines a path (52) at which a vacuum is generatable. The at least one vacuum aperture (50) has an abrasive edge (56) defined by a juncture of the vacuum aperture and the skin contact surface. The abrasive edge is configured to act on the subject's skin (40). The present application also relates to a skin care device (10) for performing a microdermabrasion procedure on a subject's skin (40).

公开(公告)号：US09750575B2

公开(公告)日：2017-09-05

申请号：US14407972

申请日：2013-06-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Haytham Elhawary ,  Aleksandra Popovic ,  Willem Verkruijsse

IPC: A61B5/00 ,  A61B19/00 ,  A61B5/0295 ,  A61B1/00 ,  A61B5/06 ,  A61B5/026 ,  A61B5/1459 ,  A61B34/30

CPC classification number: A61B34/30 ,  A61B1/0005 ,  A61B5/0084 ,  A61B5/0261 ,  A61B5/0295 ,  A61B5/061 ,  A61B5/1459 ,  A61B5/4851 ,  A61B5/7285 ,  A61B2034/301

Abstract: A system for evaluating patency includes a light sensor (128) positionable relative to a blood vessel to receive light from the blood vessel and convert the light into an image signal. A photo-plethysmography (PPG) interpretation module (115) is configured to receive the image signal and output pixel values in an image representing PPG information. An image generation module (148) is coupled to the PPG interpretation module to receive the pixel values and generate a PPG map to be output to a display for analysis.

公开(公告)号：US11964404B2

公开(公告)日：2024-04-23

申请号：US18030312

申请日：2022-07-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Johannes Dirk Wierstra ,  Marinus Arnoldus Martinus Vugts ,  Nikolaj Vasiljevitsj Zjiroecha ,  Arend Hinderikus Bakker ,  Oedilius Johannes Bisschop ,  Babu Varghese ,  Marco Baragona ,  Jonathan Alambra Palero ,  Yannyk Parulian Julian Bourquin ,  Willem Verkruijsse ,  Boamfa Marius Iosif Boamfa

IPC: B26B19/46 ,  B26B19/38 ,  B26B19/48 ,  B26B19/14

CPC classification number: B26B19/46 ,  B26B19/3813 ,  B26B19/3873 ,  B26B19/48 ,  B26B19/14

Abstract: A shaving unit and/or electric shaver having a lighting module for providing an optical heating function at a skin-contacting surface of the shaving unit is disclosed. An encapsulation arrangement for components of the lighting module using a potting material is described. The potting material encapsulates, on both an upper and lower side, a carrier to one or more lighting elements are mounted.

公开(公告)号：US20230035959A1

公开(公告)日：2023-02-02

申请号：US17786584

申请日：2020-12-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Christiaan Varekamp

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

Abstract: The present invention relates to a device (100) for determining a vital sign of a subject by use of PPG. The device comprises a processing unit (110) configured to obtain multiple first detection signals derived from electromagnetic radiation (90) from multiple measurement spots (30) on a skin region (12) of the subject illuminated by one or more illumination spots (20), wherein the electromagnetic radiation (90) enters the skin region (12) at the one or more illumination spots (20) and exits the skin region (12) at the multiple measurement spots (30). The processing unit (110) further obtains 3D image information (130) of the skin region (12) which allows determining the actual spot distance (15) between the measurements spots (30) and an illumination spot (20), respectively. This information can be used to interpret the PPG signal more precisely as without having the 3D image information only a projected distance can be determined if the skin surface is tilted. Additionally, this allows averaging PPG signals derived from a homogenous skin area to improve PPG signal strength and reduce noise. A system (500) comprising such a device and a corresponding method are further described.

公开(公告)号：US20230015851A1

公开(公告)日：2023-01-19

申请号：US17786837

申请日：2020-12-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Wang Wenjin ,  Andreia Moco ,  Nicolaas Lambert ,  Maria Estrella Mena Benito

IPC: A61B5/00 ,  A61B5/1455

Abstract: The present invention relates to a device (100), system (500) and method for determining SpO2 (160) of a subject. Two types of PPG measurements, widefield PPG with a homogenous illumination and/or a spot pattern and radial PPG with a spot illumination, are used to quantify the discrepancy in penetration depths for electromagnetic radiation in the red spectral range and infrared spectral range. This discrepancy in penetration depth is then used to find a more stable ratio signals of ratios, RR, and thus a more accurate SpO2 (160).

公开(公告)号：US11033189B2

公开(公告)日：2021-06-15

申请号：US15777252

申请日：2016-11-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Ihor Olehovych Kirenko ,  Alexander Dubielczyk ,  Marcus Schwenk ,  Gerard De Haan

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/024 ,  A61B5/0295 ,  A61B5/0205

Abstract: The present invention relates to a wearable device for acquiring physiological information of a subject. To combine the advantages of a contact sensor and a contactless sensor, the wearable device comprises an optical emitter (10) for emitting light into the subject's skin, an optical sensor (20) for receiving light scattered back from the subject's skin in response to the emission of light into the subject's skin, the received light representing or allowing the derivation of physiological information of the subject, and a carrier (30) for being held at the subject's skin and for carrying said emitter (10) and said sensor (20) such that a light receiving area (12), at which the emitted light enters the subject's skin, substantially corresponds to a light reflecting area (22), at which at least part of the scattered light leaves the subject's skin and is received by said optical sensor, the optical sensor (20) is arranged between the optical emitter (10) and the light receiving area (12) and is at least partially transparent for the light emitted by the optical emitter or the optical emitter (10) is arranged between the optical sensor (20) and the light reflecting area (22) and is at least partially transparent for the light reflected from the light reflecting area.

公开(公告)号：US10893814B2

公开(公告)日：2021-01-19

申请号：US15285559

申请日：2016-10-05

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Gerard De Haan ,  Andreas Wolfgang Schlack

IPC: A61B5/00 ,  A61B5/11 ,  A61B5/024 ,  A61B5/08 ,  A61B5/01 ,  A61B5/021 ,  A61B5/113

Abstract: The present invention relates to a device, system and method for obtaining vital sign related information of a living being. The proposed device comprises an input unit for receiving an input signal generated from light received in at least one wavelength interval reflected from a skin region of a living being, said input signal representing vital sign related information from which a vital sign of the living being can be derived, a processing unit for processing the input signal and deriving vital sign related information of said living being from said input signal, an orientation estimation unit for estimating the orientation of said skin region, and a control unit for controlling an illumination unit for illuminating said skin region with light to illuminate said skin region based on the estimated orientation of said skin region and/or for controlling said processing unit to derive vital sign related information from said input signal obtained during time intervals selected based on the estimated orientation of said skin region.

公开(公告)号：US20240032810A1

公开(公告)日：2024-02-01

申请号：US18267932

申请日：2021-12-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Willem Verkruijsse ,  Mark Josephus Henricus van Gastel ,  Age Jochem van Dalfsen

IPC: A61B5/026 ,  A61B5/024 ,  A61B5/107 ,  A61B5/00 ,  G16H30/40

CPC classification number: A61B5/0261 ,  A61B5/02427 ,  A61B5/1075 ,  A61B5/489 ,  G16H30/40

Abstract: The present invention relates to a device (100), systems (500, 500′, 500″) and a method for providing imaging of one or more aspects of blood perfusion induced by cardiac induced blood motion in a skin region (12) of a subject. Current perfusion imaging systems use either photoplethysmography (PPG) or speckle contrast (SC), but a problem of both techniques is that considerable ambiguity exists because the source of the signal (volume pulsatility in PPG or blood flow in SC) is unknown. The present invention is based on the idea of combining two different types of measurement, namely widefield imaging and radial imaging, in order to estimate the source depth (20) of the signal to provide more accurate PPG imaging and SC imaging.