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

A technology for patients and arteries, applied in catheters, cardiac catheters, diagnostic recording/measurement, etc., can solve problems such as difficult calibration parameters, complex superimposed signals, pressure pulses that cannot be limited by damping coefficients, etc., to enhance safety and ensure redundant processing Effect

Active Publication Date: 2017-10-13
约瑟夫福理埃大学(格勒诺布尔1) +1
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  • Abstract
  • Description
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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] Match 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 parameter...

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Abstract

The invention relates to a method for continuous monitoring of blood pressure measurements using a sensor (3) connected to an arterial catheter (1) via a hydraulic connection (2), said method comprising the following steps: determining the dynamic parameters of said connection (2); analyzing the frequency content of an incident signal; detecting one of the following: (a) said connection (2) is capable of transmitting said incident signal with a distortion below a threshold value, (b) said said connection (2) is able to transmit said incident signal with a distortion above said threshold and possibly correct the signal under test, (c) said connection (2) cannot transmit said incident signal with a distortion below said threshold And it is not possible to correct said measured signal; periodically a mechanical action is applied to the pipe providing said hydraulic connection (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 Patents(China)
IPC IPC(8): A61B5/0215
CPCA61B2560/0266A61B2560/066A61B2562/0247A61B2562/225A61B5/0215A61B5/0004A61B5/6852A61B5/7203A61B5/743A61B5/746
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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