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Method and arrangement for determining a vetilation need specific for a patient

A patient-needs technique applied in the field of determining patient-specific ventilation needs and placements, capable of addressing issues of inauthenticity, non-inclusion, etc.

Active Publication Date: 2016-08-24
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this determination is that anatomical dead space measurements require flow sensors at the connection between the subject and the ventilation breathing system, and such measurements are not included in the anesthesia standard
This is not true when anesthesia ventilator sensors measure flow through resistance and in high volume anesthesia ventilation systems

Method used

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  • Method and arrangement for determining a vetilation need specific for a patient
  • Method and arrangement for determining a vetilation need specific for a patient
  • Method and arrangement for determining a vetilation need specific for a patient

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Embodiment Construction

[0018] In the following detailed description, specific embodiments are explained with reference to the figures. These detailed examples can naturally be modified and should not limit the scope of the invention as set forth in the claims.

[0019] This embodiment is directed to an arrangement and method that is commonly used in intensive care or in connection with mechanical ventilation therapy during anesthesia. More particularly, the method can be used in connection with target-controlled ventilation, where the method can be adapted to determine patient-specific ventilation requirements, such as initial ventilation settings.

[0020] figure 1 The middle diagram shows an arrangement 10 utilizing a rebreathing system to provide inspired gas to a patient's lungs 12 . The arrangement 10 comprises a mechanical ventilator circuit 14 for assisting the patient's breathing function and gas exchange within the lungs, a breathing circuit 16 for connecting the patient's lungs, and a co...

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Abstract

A method (199) for determining a ventilation need specific for a patient is disclosed herein. The method includes providing (200) a breath gas with a machine ventilator circuit (14) from a starting pressure to lungs (12) of a patient to start inspiration, and filling said lungs to a predetermined breath gas pressure level. The method also includes determining (202) in a control unit (21) a filling volume of the breath gas needed to achieve the predetermined breath gas pressure level from the starting pressure, and determining (203) in the control unit a lung elastic property, such as compliance or elastance, based on a relationship between the determined filling volume of the breath gas and differences in the starting pressure and the predetermined breath gas pressure level. The method also includes determining (206) in the control unit a respiration rate exploiting at least the lung elastic property. A corresponding arrangement (10) is also provided.

Description

technical field [0001] The present invention generally relates to methods and arrangements for determining patient-specific ventilation needs. Background technique [0002] Ventilation provides the patient's lungs with oxygen from the breathing gas and removes carbon dioxide (CO2) mixed with the exhaled gas during inspiration 2 ). The rate of oxygen consumption is closely related to the rate of CO2 production and depends on the body's metabolism. [0003] During intensive care and anesthesia, subjects may not be able to maintain ventilation to meet metabolic demands, and mechanical ventilation is used to support or replace the subject's spontaneous breathing. [0004] The clinician controls the ventilation rate to keep the subject's CO2 at an appropriate physiological level. The measured end-tidal CO2 (EtCO2) concentration was used as an indicator of CO2 levels. Typical EtCO2 values ​​are around 5%, but the optimal value in some cases may vary from this. [0005] Metabo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00A61M16/10A61M16/12A61B5/083A61B5/085A61B5/091
CPCA61M2202/0208A61M2205/3334A61M2205/502A61M16/18A61M2016/0039A61M2016/0042A61M2202/0275A61M2230/432A61M16/107A61M16/204A61M16/205A61M16/206A61M16/208A61M16/024A61B5/0816A61B5/085A61B5/4836A61B5/091A61B5/0836A61M16/12A61M2016/0027A61M2230/46A61M2230/005
Inventor E·海诺宁T·哈格布隆
Owner GENERAL ELECTRIC CO
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