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System and apparatus for the non-invasive measurement of blood pressure

A non-invasive, blood pressure technique for diagnostic recording/measurement, application, vascular assessment, etc.

Inactive Publication Date: 2011-09-14
SABIRMEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Said patent, while claiming a system and apparatus for measuring arterial tone without rubber tubes, requires calibration for each user based on oscillatory metrology or the Korotkoff principle

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  • System and apparatus for the non-invasive measurement of blood pressure
  • System and apparatus for the non-invasive measurement of blood pressure
  • System and apparatus for the non-invasive measurement of blood pressure

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Embodiment Construction

[0046] The present invention comprises a system for continuous monitoring of blood pressure (systolic, diastolic and mean) ( figure 2 ), whose data is estimated by means of a plethysmographic signal acquisition device (1) (light, sound, or mechanical signal), a preferred embodiment of the present invention comprises a pulse photoelectric oximeter system (SpO 2 ). The PPG information is combined with other data of the individual, such as, for example, age, sex, height, weight, etc., and it is linked to a digital pre-processing system (2), which implements the physiology of the circulatory system given in the prior art random model. The system acquires all the parameters in a better way, affects the transmission of the pressure pulse and thus the blood pressure in a stochastic way.

[0047] The resulting vector of stochastic models is also associated with the number system (3), which approximates functions based on "random forests", whose main function is to estimate the basi...

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Abstract

The present invention relates to a system for the estimation of the systolic (SBP), diastolic (DBP) and average (MAP) blood pressure. Said system establishes a physiological model of the pulse wave combined with its energy for, afterwards, generating a fixed length vector containing the previous model's values with other variables related to the user like, for example, age, sex, height, weight, etc... This fixed length vector is used as an input of a function estimator system based on "random forests" for the calculation of the three variables of interest. The main advantage of this function estimator lies in that it does not impose any restriction beforehand over the function to be estimated, and it is also very reliable with heterogeneous data, as in the present invention's case.

Description

technical field [0001] The present invention relates to a system for the non-invasive measurement of systolic, diastolic and mean blood pressure, whether oscillometric or Korotkoff methods. To do this, a stochastic model of the physiology of the pressure pulse and its instantaneous energy was developed, combined with a system for approximating functions based on 'random forests'. The input signal is a preprocessed version of the plethysmographic pulse combined with other patient variables. Background technique [0002] The main function of the blood circulation is to meet the needs of the tissues (ie, deliver nutrients to the tissues, remove waste products, deliver hormones and maintain the correct balance of all interstitial fluids). [0003] The relationship between blood flow control related to tissue needs and cardiac control and blood pressure necessary for blood flow is poorly understood. Patents on hemodynamic management of patients, eg critical or stressed patients...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/021
CPCA61B5/021A61B5/14551A61B5/02116A61B5/7267
Inventor V·J·里巴斯里波尔V·M·加西亚罗恩特E·蒙特莫里诺
Owner SABIRMEDICAL
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