Device and method for determining regional compliance of lungs

A regional and regional technology, applied in the fields of application, drug equipment, medical science, etc., can solve problems such as excessive lung extension and high pressure

Pending Publication Date: 2022-02-18
DRAGERWERK AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] - The pressure applied is too great and stretches the lungs too much

Method used

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  • Device and method for determining regional compliance of lungs
  • Device and method for determining regional compliance of lungs
  • Device and method for determining regional compliance of lungs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] In this embodiment, the present invention is implemented by means of means, including

[0087] -Ventilator,

[0088] -Eit measuring equipment,

[0089] - Other sensors, and

[0090] - Super - level data processing control device. The upper level control device receives the signal of the EIT measuring device and other sensors and controls the ventilator of these signals, especially the actuator of the ventilator of the BEATMungshübe.

[0091] figure 1 The patient P is schematically showed artificial breathing of the patient. Show the esophageal SP, gastric mA and diaphragm of the patient P. In addition, it is shown

[0092] - ventilator 9,

[0093] - Flexible measurement catheter 14,

[0094] - The connecting member 11 in the mouth of the patient P,

[0095] -Eit with 7,

[0096] - Multiple exemplary sensors, and

[0097] - The superior control device 16, which will be described below.

[0098] Fluid connections not shown will connect the patient P to the ventilator 9. Gas ...

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PUM

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Abstract

The invention relates to a device and method to determine a value indicative of a respective regional compliance of lungs of a patient (P) in a plurality of different regions of the lungs. An airway pressure sensor (3) measures a value indicative of the pressure (Paw), which is variable over time, at the airway of the patient (P). A difference between the end-inspiratory transpulmonary pressure and the end-expiratory transpulmonary pressure is determined. An EIT measuring device (17) measures by electrical impedance tomography (EIT) a change in volume of a lung region. The difference between the end-inspiratory volume and the end-expiratory volume of the lung region is determined with the use of signals of the EIT measuring device (17). A quotient of the volume difference for the region in question and the pressure difference present at the lungs is calculated as the value indicative of the regional compliance of the lung region.

Description

Technical field [0001] The present invention relates to an apparatus and method for determining a measure of the respective regional ductility of the patient's lung in a plurality of different regions of the patient. Dehnbarkeit is also known as "Compliance". Background technique [0002] The "respiratory system" using the patient below. The respiratory system includes its lung and its chest. [0003] If the patient spontanes breathes and / or performs artificial breathing to the patient, the following two undesirable situations should be avoided, which may damage the patient's lung: [0004] - The aerodynamic pressure applied to the lungs is too low, and thus the lungs are contained (atrophy). [0005] - The applied pressure is too large and excessively extended. [0006] In Zhanqi Zhao et al., "Positive End-Expiratory Pressure Titration withElectrical Impedance Tomography and Pressure-Volume Curve in Severe AcuteRespiratory Distress Syndrome", Annals of Intensive Care 9, No. 1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0536A61B5/08A61M16/00A61M16/01
CPCA61B5/0536A61B5/0809A61M16/0003A61M16/01A61M16/024A61M2202/0208A61M2202/0241A61M2230/46A61M2202/0007A61M2230/005A61B5/085A61M2016/0027A61M2205/502A61M2205/3344A61M2210/105A61M2209/084A61M2016/0036A61M2230/04A61M2230/60A61M2230/65A61M2210/1053A61M2210/1039
Inventor E·特施纳F·拉尔夫斯
Owner DRAGERWERK AG
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