Processing

Please wait...

Settings

Settings

Goto Application

1. CN109788937 - BLOOD FLOW DETERMINATION APPARATUS

Office
China
Application Number 201780059994.6
Application Date 18.09.2017
Publication Number 109788937
Publication Date 21.05.2019
Grant Number 109788937
Grant Date 29.04.2022
Publication Kind B
IPC
A61B 8/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
06Measuring blood flow
A61B 8/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
12in body cavities or body tracts, e.g. by using catheters
A61B 8/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
CPC
A61B 8/12
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
12in body cavities or body tracts, e.g. by using catheters
A61B 8/445
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
44Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
4444related to the probe
445Details of catheter construction
A61B 8/06
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
06Measuring blood flow
A61B 5/026
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
Applicants KONINKLIJKE PHILIPS NV
皇家飞利浦有限公司
Inventors HAASE CHRISTIAN
C·哈泽
GRASS MICHAEL
M·格拉斯
Agents 永新专利商标代理有限公司 72002
永新专利商标代理有限公司 72002
Priority Data 16191056.7 28.09.2016 EP
Title
(EN) BLOOD FLOW DETERMINATION APPARATUS
(ZH) 血流确定装置
Abstract
(EN) The invention relates to a blood flow determination apparatus (5) comprising a speckle density determination unit (7) for determining a speckle density value being indicative of a level of a speckle density in an ultrasound image of an inner lumen of a blood vessel, which has been generated at an imaging location being behind an introduction location at which a fluid has been introduced into the blood vessel (20) with a known volumetric fluid flow rate. A blood flow rate determination unit (8) determines a blood flow value being indicative of a volumetric blood flow rate based on the determined speckle density value and the volumetric fluid flow rate. This allows determining the intravascular blood flow with an improved accuracy.
(ZH) 本发明涉及一种血流确定装置(5),包括:斑点密度确定单元(7),其用于确定斑点密度值,所述斑点密度值指示血管的内腔的超声图像中的斑点密度的水平,所述超声图像是在成像位置处生成的,所述成像位置在引入位置后面,在所述引入位置处,已经以已知的流体体积流速将流体引入所述血管(20);血液流速确定单元(8),其基于所确定的斑点密度值和所述流体体积流速来确定指示血液体积流速的血流值。这允许以提高的准确度确定血管内血流。