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Device, system and method for monitoring of peripheral arterial perfusion of a subject

An object, peripheral technology, used in applications, diagnostic recording/measurement, medical science, etc., to solve problems such as inability to distinguish low pulsatility

Active Publication Date: 2019-04-02
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Therefore, PPG monitoring for peripheral perfusion cannot distinguish hypopulsatility caused by low vascular compliance (due to centralization and / or vessel stiffness) or by low cardiac output

Method used

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  • Device, system and method for monitoring of peripheral arterial perfusion of a subject
  • Device, system and method for monitoring of peripheral arterial perfusion of a subject
  • Device, system and method for monitoring of peripheral arterial perfusion of a subject

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Embodiment Construction

[0050] figure 1 A schematic diagram of a first embodiment of a system 10 for monitoring peripheral arterial perfusion of a subject 14 and a processing device 12 according to the invention is shown. In the following, the processing device 12 may be simply referred to as device 12 . The subject 14, in this example a patient, is hiding in a bed 16, for example in a hospital or other medical institution, but could also be a newborn or premature baby, as lying in an incubator, or at home or in a different environment people.

[0051] In addition to the device 12, the system 10 includes detectors 18, 19 for acquiring first detection data of a tissue region 13 (e.g., forehead, cheek, hand, etc.) of the subject 14 and for acquiring first detection data of a skin region 15 of the subject 14. The second detection data (e.g., forehead, cheek, hand, etc., i.e., the same area as the tissue region) is obtained by detecting reflections from and / or transmission through the tissue of the sub...

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Abstract

The present invention relates to a device, system and method for monitoring of peripheral arterial perfusion of a subject. To enable distinguishing between low pulsatility caused by centralization orlow cardiac output, the proposed device comprises an input (30) for receiving first detection data of a tissue region of a subject, said first detection data being acquired over time by detecting radiation reflected from and / or transmitted through tissue of the subject, and for receiving second detection data of a skin region of a subject, said second detection data being acquired over time by detecting radiation received from said tissue region in response to coherent light being emitted towards said skin region, a PPG unit (32) for deriving a photoplethysmography, PPG, signal from said firstdetection data, a flow unit (34) for deriving, from said second detection data, a flow signal indicative of a flow of light scattering particles within the skin region, and an evaluation unit (36) for evaluating said PPG signal and said flow signal to obtain information on the peripheral arterial perfusion, wherein the evaluation unit is adapted to determine a state of low vascular compliance and / or a state of low cardiac output based on a combined evaluation of said PPG signal and said flow signal.

Description

technical field [0001] The present invention relates to processing devices, systems and methods for monitoring peripheral arterial perfusion of a subject. Background technique [0002] Peripheral perfusion is a common hemodynamic aspect that needs to be measured in critically ill patients. Photoplethysmography (PPG) is a known technique that can be used to monitor perfusion. PPG is an optical measurement technique that evaluates time-varying changes in light reflectance or transmission of a region or volume of interest. PPG is based on the principle that blood absorbs more light (than surrounding tissue), so changes in blood volume with each heartbeat affect the transmission or reflection accordingly. In addition to information about heart rate, the PPG waveform can include information attributable to additional physiological phenomena such as respiration. Blood oxygen saturation can be determined by evaluating the transmittance and / or reflectance at different wavelengths...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0295G02B27/48
CPCA61B5/02007A61B5/0261A61B2562/0233A61B5/0295A61B5/02028A61B5/7221
Inventor W·韦尔克鲁杰塞R·拜泽梅尔C·丘胡
Owner KONINKLJIJKE PHILIPS NV
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