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Liver reserving function analyzer

A functional analysis and liver technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of inconvenient development, inconvenient repeated, time-consuming, etc.

Inactive Publication Date: 2012-07-11
BEIJING HUAGEN ANBANG TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Routine liver function tests, such as aminopyrine breath test (ABT), aminogalactic acid clearance test (GEC), lidocaine clearance test, etc. cannot accurately and quickly reflect the status of liver function reserve. Traditional indocyanine green The traditional method of (ICG) excretion test also has the following shortcomings: manual operation, laboratory determination of ICG concentration, difficult to unify methods and standards; point measurement instead of continuous automatic recording, manual calculation of liver reserve function indicators R15 and K; It is time-consuming and laborious, which is not conducive to large-scale development; it is inconvenient to carry out clinically, and special laboratories and equipment are required; repeated blood draws, poor patient acceptance; it is inconvenient to repeat multiple times

Method used

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Experimental program
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Embodiment Construction

[0014] The Liver Reserve Function Analyzer is based on spectral analysis technology, detects and analyzes the indocyanine green (ICG) injected into the body, and uses the principle of pulse photometry to measure the pigment density.

[0015] Specifically, indocyanine green (ICG) was injected into a vein, and then the pigment density in arterial blood was continuously measured to obtain a pigment density spectrum (DDG). The area of ​​the first cycle on the pigment density spectrum is calculated from the first descending curve. The amount of pigment injected was divided by the area of ​​the first circulation to obtain the cardiac output.

[0016] According to the detection principle of pulse oximeter, a pigment concentration detection circuit with LPC2132 as the core is designed, including LED drive circuit, program control gain adjustment circuit, low-pass filter and amplifier circuit, DC bias circuit, etc.

[0017] like figure 1 As shown, the liver reserve function analyzer ...

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Abstract

The invention discloses a liver reserving function analyzer, which comprises a control circuit module and an industrial personal computer, wherein the control circuit module is used for detecting arterial blood endochrome density, and the industrial personal computer is used for calculating pigment density spectrum and cardiac output according to the arterial blood endochrome density. The liver reserving function analyzer uses a pulse dye densitogram method, performs detection analysis on indocyanine green (ICG) injected into bodies with the spectrum analysis technology as the basis, is a detection device for detecting loop parameters by using a pigment dilution method, can correctly estimate the reserving function of livers before operation, and can estimate recover conditions of the liver reserving function after operation.

Description

technical field [0001] The invention relates to medical equipment, in particular to a liver reserve function analyzer. Background technique [0002] Routine liver function tests, such as aminopyrine breath test (ABT), aminogalactic acid clearance test (GEC), lidocaine clearance test, etc. cannot accurately and quickly reflect the status of liver function reserve. Traditional indocyanine green The traditional method of (ICG) excretion test also has the following shortcomings: manual operation, laboratory determination of ICG concentration, difficult to unify methods and standards; point measurement instead of continuous automatic recording, manual calculation of liver reserve function indicators R15 and K; It is time-consuming and laborious, which is not conducive to large-scale development; it is inconvenient to carry out clinically, and special laboratories and equipment are required; repeated blood draws are not acceptable to patients; it is inconvenient to repeat it many ...

Claims

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Application Information

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IPC IPC(8): A61B5/00
Inventor 龚爱华刘彦昌
Owner BEIJING HUAGEN ANBANG TECH CO LTD
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