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1. EP3697294 - SYSTEMS, DEVICES AND METHODS FOR NON-INVASIVE HEMATOLOGICAL MEASUREMENTS

Office
European Patent Office
Application Number 18867626
Application Date 16.10.2018
Publication Number 3697294
Publication Date 26.08.2020
Publication Kind A4
IPC
A61B 5/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
02Measuring pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography; Heart catheters for measuring blood pressure
A61B 5/145
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value
G06K 9/46
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
G06T 7/136
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
10Segmentation; Edge detection
136involving thresholding
CPC
A61B 5/0261
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
026Measuring blood flow
0261using optical means, e.g. infra-red light
A61B 5/489
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
48Other medical applications
4887Locating particular structures in or on the body
489Blood vessels
A61B 5/6826
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6801specially adapted to be attached to or worn on the body surface
6813Specially adapted to be attached to a specific body part
6825Hand
6826Finger
A61B 5/7203
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7203for noise prevention, reduction or removal
A61B 5/7267
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7235Details of waveform analysis
7264Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
7267involving training the classification device
A61B 5/14546
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14546for measuring analytes not otherwise provided for, e.g. ions, cytochromes
Applicants MASSACHUSETTS INST TECHNOLOGY
UNIV MADRID POLITECNICA
Inventors CASTRO-GONZALES CARLOS
BUTTERWORTH IAN
BOURQUARD AURELIEN
SANCHEZ-FERRO ALVARO
TUCKER-SCHWARTZ JASON
PABLO-TRINIDAD ALBERTO
LEDMESMA-CARBAYO MARIA J
VETTENBURG TOM
Designated States
Priority Data 201762572738 16.10.2017 US
Title
(DE) SYSTEME, VORRICHTUNGEN UND VERFAHREN FÜR NICHTINVASIVE HÄMATOLOGISCHE MESSUNGEN
(EN) SYSTEMS, DEVICES AND METHODS FOR NON-INVASIVE HEMATOLOGICAL MEASUREMENTS
(FR) SYSTÈMES, DISPOSITIFS ET PROCÉDÉS DE MESURES HÉMATOLOGIQUES NON INVASIVES
Abstract
(EN) A system for non-invasive hematological measurements includes a platform to receive a body portion of a user and an imaging device to acquire a set of images of a capillary bed in the body portion. For each image, a controller detects one or more capillaries in the body portion of the finger to identify a first set of capillaries by estimating one or more attributes of each capillary (e.g., structural attributes, flow attributes, imaging attributes, or combinations thereof), wherein at least one attribute of each capillary meets a predetermined criterion. The controller also identifies a second set of capillaries from the first set of capillaries such that each capillary of the second set of capillaries is visible in a predetermined number of images of the set of images.
(FR) Un système de mesures hématologiques non invasives comprend une plateforme pour recevoir une partie corporelle d'un utilisateur et un dispositif d'imagerie pour acquérir un ensemble d'images d'un lit capillaire dans la partie corporelle. Pour chaque image, un dispositif de commande détecte un ou plusieurs capillaires dans la partie corporelle du doigt pour identifier un premier ensemble de capillaires en estimant un ou plusieurs attributs de chaque capillaire (par exemple, des attributs structurels, des attributs de flux, des attributs d'imagerie, ou des combinaisons de ceux-ci), au moins un attribut de chaque capillaire satisfaisant un critère prédéterminé. Le dispositif de commande identifie également un second ensemble de capillaires à partir du premier ensemble de capillaires de sorte que chaque capillaire du second ensemble de capillaires soit visible dans un nombre prédéterminé d'images de l'ensemble d'images.