Method and device for monitoring blood pressure measurement by arterial catheterization of a patient

A technology for arterial pressure and patients, applied in the direction of catheterization, cardiac catheterization, diagnostic recording/measurement, etc., can solve problems such as difficult calibration parameters, complex superimposed signals, and no consideration of artifacts, etc., to enhance safety and ensure redundant processing Effect

Active Publication Date: 2014-11-05
约瑟夫福理埃大学(格勒诺布尔1) +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0079] However, the superimposed signal is complex, so the extraction of correction parameters is tricky
[0080] In addition, pressure pulses can hardly define the damping coefficient of the connection
[0081] Furthermore, this method does not take into account artifacts that may arise during the measurement, nor the fact that the pipes will contain air bubbles, leading to necessary corrections over time
[0082] Now, said pulses are generated only by the manipulation of clinical personnel, and although the measured signal is correctly corrected for a short time after the pulse is applied, there is no guarantee that this correction will remain valid for a long time

Method used

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  • Method and device for monitoring blood pressure measurement by arterial catheterization of a patient
  • Method and device for monitoring blood pressure measurement by arterial catheterization of a patient
  • Method and device for monitoring blood pressure measurement by arterial catheterization of a patient

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Embodiment Construction

[0164] image 3 Is a schematic illustration of an embodiment of a device for measuring arterial pressure with a radial artery catheter, into which a monitoring module is inserted and, if required, the previously described calibration device is inserted.

[0165] pair and reference figure 1 Components that perform the same function as those already described have the same reference numerals.

[0166] The monitoring and correcting device mainly includes a monitoring and correcting module 100 and an actuator module 200 which are sequentially described below.

[0167] Monitoring and Correction Module

[0168] Functions implemented by monitoring and correction modules

[0169] The monitoring and correction module 100 includes electronic components and embedded computer applications for implementing the functions of monitoring and, if necessary, correcting arterial blood pressure measurements in real time.

[0170] One function consists of characterizing the dynamic parameters...

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Abstract

The invention relates to a method for continuously monitoring a blood pressure measurement using a sensor (3) connected by a hydraulic link (2) to an arterial catheter (1), said method comprising the steps of: - determining the dynamic parameters of said link (2), - analyzing the frequency content of the incident signal, - detecting one of the following situations: (a) ability of said link (2) to transmit the incident signal with a distortion below a threshold, (b) ability of said link (2) to transmit the incident signal with a distortion above said threshold and possibility of correcting the measured signal, (c) inability of said link (2) to transmit the incident signal with a distortion below said threshold and impossibility of correcting the measured signal, - periodic application of a mechanical action to the tubing providing the hydraulic link (2).

Description

technical field [0001] The present invention relates to a method and apparatus for monitoring and, if necessary, continuous correction of arterial blood pressure measurements through a patient's arterial catheter. Background technique [0002] Measurement of a patient's arterial blood pressure, particularly radial artery blood pressure, via an arterial catheter is currently used in intensive care units, major surgical theaters, and interventional cardiology. [0003] Indeed, this technique on the one hand allows continuous monitoring of the arterial blood pressure, which may vary significantly and to a large extent due to the pathology of the patient. [0004] Furthermore, this technique is compatible with routine sampling of arterial blood for blood gas analysis and blood bioanalysis. [0005] figure 1 A currently widely used device for measuring arterial blood pressure through a radial artery catheter is shown. [0006] The device comprises a catheter 1 introduced into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0215
CPCA61B2562/0247A61B5/0215A61B2560/0266A61B2560/066A61B2562/225A61B5/0004A61B5/6852A61B5/7203A61B5/743A61B5/746
Inventor 弗朗西斯·格兰贝尔伊夫·拉瓦乌特
Owner 约瑟夫福理埃大学(格勒诺布尔1)
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