CN220069693U - Metabolic measurement device based on gas concentration and respiratory mechanics parameter fusion - Google Patents
Metabolic measurement device based on gas concentration and respiratory mechanics parameter fusion Download PDFInfo
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- CN220069693U CN220069693U CN202321317158.2U CN202321317158U CN220069693U CN 220069693 U CN220069693 U CN 220069693U CN 202321317158 U CN202321317158 U CN 202321317158U CN 220069693 U CN220069693 U CN 220069693U
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- 238000005259 measurement Methods 0.000 title claims abstract description 182
- 230000000241 respiratory effect Effects 0.000 title claims abstract description 180
- 230000002503 metabolic effect Effects 0.000 title claims abstract description 75
- 230000004927 fusion Effects 0.000 title claims abstract description 32
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 19
- 230000004060 metabolic process Effects 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 251
- 238000005070 sampling Methods 0.000 claims description 26
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 239000003994 anesthetic gas Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 6
- 206010002091 Anaesthesia Diseases 0.000 description 5
- 230000037005 anaesthesia Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 3
- 230000008558 metabolic pathway by substance Effects 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000037323 metabolic rate Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
Abstract
The metabolic measurement device based on the fusion of the gas concentration and the respiratory mechanics parameter comprises a main control module, a gas concentration measurement module, a respiratory mechanics parameter measurement module, a metabolic parameter calculation module and a gas concentration measurement and respiratory mechanics measurement integrated adapter; the sensing part of the respiratory mechanics sensor is arranged inside the hollow adapter main body; the metabolic parameter calculation module acquires real-time gas concentration from the gas concentration measurement module and acquires respiratory mechanics parameters from the respiratory mechanics parameter measurement module; the metabolic parameter calculation module calculates and obtains metabolic parameters based on the gas concentration and the respiratory mechanics parameters. The method can simultaneously complete the measurement of the gas concentration, the respiratory mechanical parameter and the metabolic parameter, improves the measurement efficiency and reduces the comprehensive cost of multi-parameter measurement. The metabolic parameters of the single-breath beat can be obtained, the breathing mechanical parameters and the gas concentration are sampled at the relatively similar positions, the data cooperativity and the consistency are higher, and the accuracy and the consistency of the metabolism synchronous calculation can be improved.
Description
Technical Field
The utility model relates to the field of medical treatment, in particular to a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters.
Background
Clinically, a basic metabolizing instrument is commonly used to measure oxygen consumption per unit time (O) 2 L/h) as one of the parameters for metabolic capacity assessment. The conditions were relatively fixed in the basal state, and the oxygen heat value was 19.3kJ and was substituted into the following formula, whereby the Basal Metabolic Rate (BMR) was obtained. Bmr=o 2 L/h.times.19.3 kJ.s for example, a male aged 30 years, body surface area of 1.5m 2 Oxygen consumption was measured at 12L/h in the basal state. Then its bmr=12L/h×19.3kJ +.1.5m2=154.4 kJ/hm2 is calculated as the normal value of the BMR of the other age group in table 9-3, and the percentage exceeding (+) or falling short (-) is calculated to determine whether it falls within the normal range (typically ±10%).
In the prior art, the measurement of the metabolic parameter is an indirect calculation result and is usually an estimated value, which represents a basic state, and the metabolic parameter cannot be output in real time, so that the application of the metabolic parameter is mostly in daily life state.
In critical situations of patients, real-time monitoring of metabolic states is also very important, but real-time monitoring of metabolic related parameters is difficult to achieve in the prior art, so that monitoring of metabolic related parameters in critical states is not performed.
The concentration of carbon dioxide in medical respiration is one of the key parameters in modern clinical operations and intensive care. Also the measurement of respiratory mechanics parameters is one of the key parameters in intensive care, especially for intubated patients, the management of the respiratory airways is critical for life support.
In the prior art, the respiratory mechanics parameter measurement relied on by respiratory airway management has two cases, wherein one of the cases is that the respiratory mechanics parameter measurement is integrated with a breathing machine or an anesthesia machine, and the breathing machine or the anesthesia machine is used as a reference parameter for the work of the breathing machine or the anesthesia machine; and the second is that the respiratory mechanics parameter measuring module is used as one configuration of the monitor to measure respiratory mechanics parameters.
Whether integrated in a ventilator or anesthesia machine, or as a separate monitoring device configured respiratory mechanics parameter measurement module, a separate flow sensing device is typically required to cooperate with the respiratory main air path. Such an arrangement increases the measuring costs of the respiratory mechanics on the one hand, its sensors have to be configured separately, and on the other hand the coordination and consistency between the respiratory mechanics parameter measurements and the gas concentration measurements is insufficient, and the data cannot be used in synergy for the subsequent synchronous calculations.
In addition, the prior art does not see the measurement state and method of the metabolic parameters capable of outputting the single-call beat in real time.
Disclosure of Invention
The technical scheme of the utility model overcomes the defect that metabolic parameter measurement is not real-time in the prior art, and provides a metabolic measurement device and a metabolic measurement method based on gas concentration and respiratory mechanics parameter fusion of a gas concentration measurement and respiratory mechanics measurement integrated adapter.
The technical scheme for solving the technical problems is that the metabolic measurement device based on the fusion of the gas concentration and the respiratory mechanics parameters comprises a main control module, a gas concentration measurement module, a respiratory mechanics parameter measurement module, a metabolic parameter calculation module and a gas concentration measurement and respiratory mechanics measurement integrated adapter; the main control module is electrically connected with the gas concentration measuring module; the main control module is electrically connected with the respiratory mechanics parameter measurement module; the main control module is electrically connected with the metabolism parameter calculation module; the gas concentration measurement and respiratory mechanics measurement integrated adapter comprises a main gas path air inlet connecting end A, a main gas path air inlet connecting end B, a respiratory mechanics sensor and a hollow adapter main body; the gas circuit sampling interface is used for being connected with a gas measurement sampling tube; the main air channel air inlet connecting end A and the main air channel air inlet connecting end B are used for installing the adapter main body on a main breathing air channel; the sensing part of the respiratory mechanics sensor is arranged in the hollow adapter main body and is used for measuring respiratory mechanics parameters in the main respiratory gas circuit; the metabolism parameter calculation module obtains real-time gas concentration from the gas concentration measurement module; the metabolic parameter calculation module acquires the respiratory mechanics parameters from the respiratory mechanics parameter measurement module; the metabolic parameter calculation module calculates and obtains metabolic parameters based on the gas concentration and the respiratory mechanics parameters.
The gas concentration measuring module comprises any one or more of a carbon dioxide concentration measuring module, an oxygen measuring module and an anesthetic gas concentration measuring module.
The respiratory mechanics parameters comprise the gas flow rate, the gas pressure and the gas temperature of the main gas path; the respiratory mechanics parameter module comprises a gas flow measuring module, a gas pressure measuring module and a gas temperature measuring module.
The metabolism parameter calculation module calculates a single gas real-time flow = real-time gas path flow x real-time single gas concentration value.
The gas concentration measurement and respiratory mechanics measurement integrated adapter is a bypass flow type gas concentration measurement and respiratory mechanics measurement integrated adapter; the upper part of the adapter body is provided with a gas sampling interface which is used for being connected with a gas measurement sampling tube; the gas sampling interface is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas sampling interface and is closer to the main gas path air inlet connecting end A.
The gas concentration measurement and respiratory mechanics measurement integrated adapter is a main flow type gas concentration measurement and respiratory mechanics measurement integrated adapter, and a gas measurement light path component is arranged on an adapter main body; the gas measuring light path component is used for penetrating light waves for gas measurement; the gas measurement light path component is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas measurement light path component and is closer to the main gas path air inlet connection end A.
The respiratory mechanics sensor comprises a flow sensor based on a heat flow sensing principle, wherein a sensing part of the flow sensor is a flow sensor with a hollow structure and is used for measuring the flow of gas through air flow; the respiratory mechanics sensor is arranged on one side close to the air inlet connecting end A of the main air passage; or the respiratory mechanics sensor is arranged on one side close to the air inlet connecting end B of the main air path.
The upper part of the adapter main body is provided with an opening for assembling the respiratory mechanics sensor into the adapter main body; the upper part of the adapter body is provided with an opening, and an opening sealing device is arranged above the opening.
The technical scheme for solving the technical problems can also be a metabolic measurement method based on the fusion of the gas concentration and the respiratory mechanics parameters, wherein the acquisition of the respiratory mechanics parameters comprises the real-time gas path flow; calculating the real-time flow of the single gas in the integral gas circuit according to the acquired real-time gas concentration value; and calculating corresponding substance metabolism parameters according to the real-time flow of the single gas.
The metabolism parameter calculation module calculates the real-time flow = real-time gas path flow x real-time single gas concentration value of the single gas; and calculating the single gas metabolism in each breathing beat according to the single gas real-time flow.
Based on the metabolic measurement device based on the fusion of the gas concentration and the respiratory mechanics parameters; the single gas real-time flow comprises carbon dioxide gas flow, oxygen gas flow and anesthetic gas flow; carbon dioxide gas flow = real-time gas path flow x real-time carbon dioxide gas concentration value; oxygen gas flow = real-time gas path flow x real-time oxygen gas concentration value; anesthetic gas flow = real-time gas path flow x real-time anesthetic gas concentration value.
Compared with the prior art, the utility model has the beneficial effects of 1: the gas concentration and the respiratory mechanics parameters are fused in one metabolic parameter measuring device, so that the metabolic parameter efficiency is greatly improved, and the metabolic parameters corresponding to each breathing beat can be obtained.
Compared with the prior art, the utility model has the beneficial effects of 2: the method can acquire various gas concentration parameters and various respiratory mechanics parameters at one time, can acquire gas concentration data, respiratory mechanics parameter data and metabolic parameter data very synchronously, and provides a basis for subsequent fusion calculation. The metabolic parameters of critical patients, especially those of cannulas, can be evaluated according to the breathing beats, and more physiological parameter references are provided for the evaluation of sudden conditions.
Compared with the prior art, the utility model has the beneficial effects of 3: the integrated adapter for measuring the gas concentration and measuring the respiratory mechanics can simultaneously finish the measurement of the gas concentration and the respiratory mechanics parameters, a supporting component of a respiratory mechanics sensing component is not required to be independently arranged, the measurement of the gas concentration, the respiratory mechanics parameters and the metabolic parameters can be cooperatively finished, the measurement efficiency is improved, the comprehensive cost of multi-parameter acquisition is reduced, and one component can finish the measurement of multiple parameters.
Compared with the prior art, the utility model has the beneficial effects of 4: the gas concentration measurement and respiratory mechanics measurement integrated adapter can sample respiratory mechanics parameters and gas concentration at a relatively similar position, so that data cooperativity and consistency are higher, subsequent synchronous calculation is convenient, and accuracy and consistency of synchronous calculation can be improved.
Compared with the prior art, the utility model has the beneficial effects of 5: the gas concentration measurement and respiratory mechanics measurement integrated adapter comprises a bypass type gas concentration measurement and respiratory mechanics measurement integrated adapter and a main flow type gas concentration measurement and respiratory mechanics measurement integrated adapter, and the synchronous measurement of gas concentration and respiratory mechanics can be carried out in any measurement mode, so that the adaptability of measurement application scenes is good. In any measuring mode, three groups of measuring parameters, namely gas concentration parameters, respiratory mechanics parameters and metabolic parameters, can be obtained simultaneously.
Compared with the prior art, the utility model has the beneficial effects of 6: the respiratory mechanics sensor is arranged at the front end of the gas measuring light path component and is closer to the air inlet connecting end A of the main gas path, so that the influence of flow disturbance caused by the air flow passing through the adapter on respiratory mechanics measuring parameters can be reduced.
Compared with the prior art, the utility model has the beneficial effects of 7: the respiratory mechanics sensor is arranged close to the air inlet connecting end A of the main air passage and/or the respiratory mechanics sensor is arranged close to the air outlet connecting end B of the main air passage; the integration of a plurality of respiratory mechanics sensors is flexibly carried out, finer respiratory mechanics parameter detection is conveniently carried out, and air flow disturbance brought by the adapter can be reduced.
Compared with the prior art, the utility model has the beneficial effects of 8: the flow sensor based on the heat flow sensing principle can accurately measure flow and obtain temperature related parameters for subsequent calculation.
Drawings
FIG. 1 is a schematic block diagram of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters;
FIG. 2 is a schematic block diagram of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters;
FIG. 3 is a schematic block diagram of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters;
FIG. 4 is a schematic block diagram of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters;
FIG. 5 is a schematic block diagram of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters;
FIG. 6 is a schematic diagram of an application scenario in which a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters includes a mainstream gas concentration measurement and respiratory mechanics measurement integrated adapter; reference numeral 600 in the figure is a main flow adapter, and reference numeral 500 is a metabolic measurement device which is matched with the main flow adapter and is based on the fusion of gas concentration and respiratory mechanics parameters;
FIG. 7 is a schematic diagram of an application scenario in which a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters includes an integrated adaptor for by-pass gas concentration measurement and respiratory mechanics measurement;
FIG. 8 is a perspective schematic view of a combined state of a mainstream gas concentration measurement and respiratory mechanics measurement integrated adapter;
FIG. 9 is a schematic cross-sectional view of a combination of mainstream gas concentration measurement and respiratory mechanics measurement adaptor;
FIG. 10 is a schematic diagram of a respiratory mechanics sensor;
FIG. 11 is a schematic diagram of an exploded view of a bypass flow gas concentration measurement and respiratory mechanics measurement integrated adapter;
FIG. 12 is a perspective schematic view of a combined state of a bypass flow gas concentration measurement and respiratory mechanics measurement integrated adapter;
FIG. 13 is a schematic cross-sectional view of a combination of mainstream gas concentration measurement and respiratory mechanics measurement adaptor;
FIG. 14 is a schematic illustration of a plurality of respiratory gas concentration parameters obtained from gas concentration measurements;
fig. 15 is a schematic diagram of flow waveforms of various breathing gases.
Detailed Description
The present utility model is further described in detail below in conjunction with the examples.
Referring to fig. 1, an embodiment of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters includes a main control module, a gas concentration measurement module, a respiratory mechanics parameter measurement module, a metabolic parameter calculation module, and a gas concentration measurement and respiratory mechanics measurement integrated adapter; the main control module is electrically connected with the gas concentration measuring module; the main control module is electrically connected with the respiratory mechanics parameter measurement module; the main control module is electrically connected with the metabolism parameter calculation module; the gas concentration measurement and respiratory mechanics measurement integrated adapter comprises a main gas path air inlet connecting end A, a main gas path air inlet connecting end B, a respiratory mechanics sensor and a hollow adapter main body; the gas circuit sampling interface is used for being connected with a gas measurement sampling tube; the main air channel air inlet connecting end A and the main air channel air inlet connecting end B are used for installing the adapter main body on a main breathing air channel; the sensing part of the respiratory mechanics sensor is arranged in the hollow adapter main body and is used for measuring respiratory mechanics parameters in the main respiratory gas circuit; the metabolism parameter calculation module obtains real-time gas concentration from the gas concentration measurement module; the metabolic parameter calculation module acquires the respiratory mechanics parameters from the respiratory mechanics parameter measurement module; the metabolic parameter calculation module calculates and obtains metabolic parameters based on the gas concentration and the respiratory mechanics parameters.
In one embodiment of a metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters, as shown in fig. 2, the gas concentration measurement module comprises any one or more of a carbon dioxide concentration measurement module, an oxygen measurement module, and an anesthetic gas concentration measurement module.
In one embodiment of a metabolic measurement device based on the fusion of gas concentration and respiratory mechanics parameters, as shown in fig. 3, the respiratory mechanics parameters include gas flow, gas pressure and gas temperature of the main gas circuit. The respiratory mechanics parameter module correspondingly comprises a gas flow measurement module, a gas pressure measurement module and a gas temperature measurement module.
The metabolism parameter calculation module calculates a single gas real-time flow = real-time gas path flow x real-time single gas concentration value.
As shown in fig. 4, the integrated adaptor for gas concentration measurement and respiratory mechanics measurement is an integrated adaptor for by-pass gas concentration measurement and respiratory mechanics measurement; the upper part of the adapter body is provided with a gas sampling interface which is used for being connected with a gas measurement sampling tube; the gas sampling interface is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas sampling interface and is closer to the main gas path air inlet connecting end A.
As shown in fig. 5, the gas concentration measurement and respiratory mechanics measurement integrated adapter is a main flow type gas concentration measurement and respiratory mechanics measurement integrated adapter, and a gas measurement light path component is arranged on an adapter main body; the gas measuring light path component is used for penetrating light waves for gas measurement; the gas measurement light path component is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas measurement light path component and is closer to the main gas path air inlet connection end A.
The upper part of the adapter main body is provided with an opening for assembling the respiratory mechanics sensor into the adapter main body; the upper part of the adapter body is provided with an opening, and an opening sealing device is arranged above the opening.
As shown in fig. 8 to 13, the respiratory mechanics sensor includes a flow sensor 300 based on a heat flow sensing principle, wherein a sensing part 310 is a hollow flow sensor for measuring a gas flow through a gas flow; the respiratory mechanics sensor is arranged on one side close to the air inlet connecting end A of the main air passage; or the respiratory mechanics sensor is arranged on one side close to the air outlet connection end B of the main air path.
As shown in fig. 11 and 12, the upper portion of the adapter body is provided with an opening 220 for the respiratory mechanics sensor 300 to be fitted into the interior of the adapter body 210; in embodiments not shown in some of the figures, an opening seal is provided over the opening.
As shown in fig. 8 to 10, in the embodiment of the mainstream gas concentration measurement and respiratory mechanics measurement integrated adaptor 100, a gas measurement optical path component 130 is provided on the adaptor body 110; the gas measuring light path component is used for penetrating light waves for gas measurement. The gas measuring light path assembly 130 is disposed in the middle of the adapter body 110, and the respiratory mechanics sensor 300 is disposed at the front end of the gas measuring light path assembly, closer to the main gas path inlet connection end a111.
As shown in fig. 8-10, in the illustrated embodiment, a sensor interface 320 is provided inside the hollow adapter body 110 for wireless connection with an external measurement module. For separately outputting the respiratory mechanics parameters.
11-13, in one embodiment of an integrated gas concentration measurement and respiratory mechanics measurement adapter, is a bypass flow integrated gas concentration measurement and respiratory mechanics measurement adapter 200; the adapter body 210 is provided at an upper portion thereof with a gas sampling port 230, and the gas sampling port 230 is adapted to be connected with a gas measurement sampling tube. The gas measurement sampling tube is shown as 900 in fig. 7, and 800 in fig. 7 is a gas path connection interface between the gas sampling tube 900 and a host such as a monitor anesthesia machine. The gas sampling interface 230 is disposed in the middle of the adapter body 210, and the respiratory mechanics sensor 300 is disposed at the front end of the gas sampling interface 230, closer to the main gas path inlet connection a211. The influence of the by-pass gas sampling on the measurement of the respiratory mechanics parameters is avoided, and the accuracy of the respiratory mechanics measurement is enhanced.
As shown in fig. 10-13, in an embodiment of the integrated gas concentration measurement and respiratory mechanics measurement adapter, a sensor interface 320 is further included; the sensor interface 320 is electrically connected to the sensing portion 310 of the respiratory mechanics sensor 300; the sensor interface 320 is disposed outside the hollow adapter body 210 for wired or wireless electrical connection with an external measurement module. Sensor interface 320 and sensor portion 310 may be integral to form respiratory mechanics sensor 300. The sensor interface 320 may also be a separate component that is not integrated with the sensing portion 310 as a single component. In other embodiments, the sensor interface 320 is disposed inside the hollow adapter body 210 for wireless connection with an external measurement module. For separately outputting the respiratory mechanics parameters. The sensor interface 320, when disposed inside the hollow adapter body 210, may also be part of an adapter measurement control module; the adapter measurement control module may be integrated with the adapter. The sensor interface 320 may not be integral with the adapter.
As shown in fig. 8 to 13, the respiratory mechanics sensor 300 is disposed near the main air passage intake connection end a side. In embodiments not shown in the other figures, the respiratory mechanics sensor is disposed on the side near the main gas path outlet connection B. For detecting a disturbance of the gas flow in the gas sample. In some non-illustrated embodiments, a respiratory mechanics sensor is respectively arranged at two ends close to the inlet connection end A of the main gas path and close to the outlet connection end B of the main gas path, and respiratory mechanics parameter measurement of two points is performed, so that finer airflow disturbance information is obtained, and subsequent synchronous calculation is facilitated.
As in the embodiment of fig. 13, the upper portion of the adapter body 210 is provided with an opening 220 for the respiratory mechanics sensor 300 to fit into the interior of the adapter body 210; in embodiments not shown in some of the figures, an opening seal is provided over the opening 220. In other embodiments, the respiratory mechanics sensor 300 is equipped with a self-contained sealing device to ensure the tightness of the airway adapter.
In embodiments not shown in some of the figures, the respiratory mechanics sensor comprises a flow sensor based on the principle of heat flow sensing, the sensing part of which is a hollow flow sensor for measuring the flow of gas through the gas flow. The respiratory mechanics sensor may also be other forms of flow sensors or other different types of pressure sensors, temperature sensors, etc. as known in the art.
In embodiments not shown in some figures, a metabolic measurement method based on fusion of gas concentration and respiratory mechanics parameters obtains respiratory mechanics parameters including real-time gas circuit flow; calculating the real-time flow of the single gas in the integral gas circuit according to the acquired real-time gas concentration value; and calculating corresponding substance metabolism parameters according to the real-time flow of the single gas. The metabolism parameter calculation module calculates the real-time flow = real-time gas path flow x real-time single gas concentration value of the single gas; and calculating the single gas metabolism in each breathing beat according to the single gas real-time flow. Based on the metabolic measurement device based on the fusion of the gas concentration and the respiratory mechanics parameters; the single gas real-time flow comprises carbon dioxide gas flow, oxygen gas flow and anesthetic gas flow; wherein carbon dioxide gas flow = real-time gas path flow x real-time carbon dioxide gas concentration value; oxygen gas flow = real-time gas path flow x real-time oxygen gas concentration value; the gas metabolism of the expiratory phase and the inspiratory phase can be obtained by integrating the anesthetic gas flow = real-time gas path flow x real-time anesthetic gas concentration value with time, and the metabolism of a plurality of time periods such as each minute, 1 hour and the like can be further calculated, so that objective various gas metabolism quantification parameters are provided.
As shown in fig. 14, the respiratory gas concentration waveforms and the real-time airway Flow waveforms Flow for 3 different gases are shown, with 4 different gases being carbon dioxide CO2, oxygen O2, fluoroether DES of anesthetic gas, respectively. As shown in fig. 15, the real-time Flow and real-time airway Flow waveform Flow of breathing gas concentrations for 3 different gases are shown. According to the real-time gas concentration waveform in each breathing beat, the corresponding breathing mechanical parameters and metabolic parameters of each breathing beat can be calculated, so that the metabolic parameters can be evaluated in real time according to the breathing beats; provides richer metabolic parameter data for critical clinical monitoring.
The metabolic measurement device based on the fusion of the gas concentration and the respiratory mechanics parameter comprises a main control module, a gas concentration measurement module, a respiratory mechanics parameter measurement module, a metabolic parameter calculation module and a gas concentration measurement and respiratory mechanics measurement integrated adapter; the sensing part of the respiratory mechanics sensor is arranged inside the hollow adapter main body; the metabolic parameter calculation module acquires real-time gas concentration from the gas concentration measurement module and acquires respiratory mechanics parameters from the respiratory mechanics parameter measurement module; the metabolic parameter calculation module calculates and obtains metabolic parameters based on the gas concentration and the respiratory mechanics parameters. The method can simultaneously complete the measurement of the gas concentration, the respiratory mechanical parameter and the metabolic parameter, improves the measurement efficiency and reduces the comprehensive cost of multi-parameter measurement. The metabolic parameters of the single-breath beat can be obtained, the breathing mechanical parameters and the gas concentration are sampled at the relatively similar positions, the data cooperativity and the consistency are higher, and the accuracy and the consistency of the metabolism synchronous calculation can be improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.
Claims (9)
1. A metabolic measurement device based on the fusion of gas concentration and respiratory mechanics parameters is characterized in that,
the device comprises a main control module, a gas concentration measurement module, a respiratory mechanics parameter measurement module, a metabolic parameter calculation module and a gas concentration measurement and respiratory mechanics measurement integrated adapter;
the main control module is electrically connected with the gas concentration measuring module;
the main control module is electrically connected with the respiratory mechanics parameter measurement module;
the main control module is electrically connected with the metabolism parameter calculation module;
the gas concentration measurement and respiratory mechanics measurement integrated adapter comprises a main gas path air inlet connecting end A, a main gas path air inlet connecting end B, a respiratory mechanics sensor and a hollow adapter main body;
the gas circuit sampling interface is used for being connected with a gas measurement sampling tube;
the main air channel air inlet connecting end A and the main air channel air inlet connecting end B are used for installing the adapter main body on a main breathing air channel;
the sensing part of the respiratory mechanics sensor is arranged in the hollow adapter main body and is used for measuring respiratory mechanics parameters in the main respiratory gas circuit;
the metabolism parameter calculation module obtains real-time gas concentration from the gas concentration measurement module;
the metabolic parameter calculation module acquires the respiratory mechanics parameters from the respiratory mechanics parameter measurement module;
the metabolic parameter calculation module calculates and obtains metabolic parameters based on the gas concentration and the respiratory mechanics parameters.
2. A metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters according to claim 1, characterized in that,
the gas concentration measuring module comprises any one or more of a carbon dioxide concentration measuring module, an oxygen measuring module and an anesthetic gas concentration measuring module.
3. A metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters according to claim 1, characterized in that,
the respiratory mechanics parameters comprise the gas flow rate, the gas pressure and the gas temperature of the main gas path; the respiratory mechanics parameter module comprises a gas flow measuring module, a gas pressure measuring module and a gas temperature measuring module.
4. A metabolic measurement apparatus based on fusion of gas concentration and respiratory mechanics parameters according to claim 3,
the metabolism parameter calculation module calculates a single gas real-time flow = real-time gas path flow x real-time single gas concentration value.
5. A metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters according to claim 1, characterized in that,
the gas concentration measurement and respiratory mechanics measurement integrated adapter is a bypass flow type gas concentration measurement and respiratory mechanics measurement integrated adapter;
the upper part of the adapter body is provided with a gas sampling interface which is used for being connected with a gas measurement sampling tube; the gas sampling interface is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas sampling interface and is closer to the main gas path air inlet connecting end A.
6. A metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters according to claim 1, characterized in that,
the gas concentration measurement and respiratory mechanics measurement integrated adapter is a main flow type gas concentration measurement and respiratory mechanics measurement integrated adapter, and a gas measurement light path component is arranged on an adapter main body; the gas measuring light path component is used for penetrating light waves for gas measurement; the gas measurement light path component is arranged in the middle of the adapter body, and the respiratory mechanics sensor is arranged at the front end of the gas measurement light path component and is closer to the main gas path air inlet connection end A.
7. The metabolic measurement device according to claim 6 based on fusion of gas concentration and respiratory mechanics parameters, characterized in that,
the respiratory mechanics sensor comprises a flow sensor based on a heat flow sensing principle, wherein a sensing part of the flow sensor is a flow sensor with a hollow structure and is used for measuring the flow of gas through air flow;
the respiratory mechanics sensor is arranged on one side close to the air inlet connecting end A of the main air passage.
8. The metabolic measurement device according to claim 6 based on fusion of gas concentration and respiratory mechanics parameters, characterized in that,
the respiratory mechanics sensor comprises a flow sensor based on a heat flow sensing principle, wherein a sensing part of the flow sensor is a flow sensor with a hollow structure and is used for measuring the flow of gas through air flow;
or the respiratory mechanics sensor is arranged on one side close to the air inlet connecting end B of the main air path.
9. A metabolic measurement device based on fusion of gas concentration and respiratory mechanics parameters according to claim 1, characterized in that,
the upper part of the adapter main body is provided with an opening for assembling the respiratory mechanics sensor into the adapter main body;
the upper part of the adapter body is provided with an opening, and an opening sealing device is arranged above the opening.
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