BLOOD FLOW CONTROL SYSTEM AND METHODS FOR IN-VIVO IMAGING Russian patent published in 2019 - IPC A61B6/00 A61B5/55 A61B5/08 A61B8/06 A61M16/20 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically to means of controlling blood flow. Method of obtaining in-vivo images of the inner parts of the human body using an imaging system and including operations for positioning the body relative to the imaging system and connecting a respiratory resistance device to the human respiratory system, as well as an operation of obtaining an image in the inhalation phase, during which the body performs air intake, overcoming the resistance created by said device, and / or an operation of obtaining the image in the exhalation phase, during which the body performs exhalation of air, overcoming the resistance created by said device, where a contrast medium is administered via venous access to the upper or lower extremity of the body immediately before and / or during the inhalation or exhalation phase, respectively, where said respiratory resistance device includes a housing that includes a replaceable component with one or more openings for connection to the human body respiratory system, a closed internal volume or internal volume with one or more flow-restricting through holes partially blocking the flow of air entering the respiratory system of the human body, and a generator for generating a control signal. Respiratory resistance device comprises a housing comprising a replaceable component with one or more openings for connection, when using the device, to the respiratory system of the human body and a closed internal volume or internal volume with one or more flow-restricting through holes, partially blocking the flow of air entering the respiratory system of the human body during the inhalation phase or exiting from it during the expiratory phase, and also comprising a generator for generating a control signal. Device is used to create respiratory resistance to influence, through certain respiratory conditions, the distribution and / or reduction to the standard values of blood flow, according to the corresponding requirement, either from the superior vena cava or from the inferior vena cava in order to increase blood flow from the corresponding blood vessel to the right atrium and / or increase the concentration of the contrast medium in the bloodstream to the pulmonary arteries or into the blood vessels behind the pulmonary arteries. System for in-vivo imaging of the inner part of a human body comprises a respiratory resistance device and any of a CT scanner, MRI scanner (MRI), ultrasound system, angiograph, PET/CT and PET/MRI. Image quality improvement kit contains a substance for injecting into the body, in particular a contrast medium, and a respiratory resistance device.

EFFECT: use of inventions allows to improve the properties of images of blood flow with enhanced contrast.

24 cl, 4 dwg