CN114404755A - Tidal volume monitoring method - Google Patents
Tidal volume monitoring method Download PDFInfo
- Publication number
- CN114404755A CN114404755A CN202210089311.4A CN202210089311A CN114404755A CN 114404755 A CN114404755 A CN 114404755A CN 202210089311 A CN202210089311 A CN 202210089311A CN 114404755 A CN114404755 A CN 114404755A
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- CN
- China
- Prior art keywords
- hose
- tidal volume
- time
- patient
- expiration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 abstract description 7
- 210000003128 head Anatomy 0.000 description 8
- 210000005077 saccule Anatomy 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002680 cardiopulmonary resuscitation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M16/0009—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
Abstract
The invention discloses a tidal volume monitoring method, which comprises the steps of 1) arranging a breathing pipeline; 2) sampling a detection signal of the gas flow sensor according to a set frequency, and fitting a curve equation v ═ f (t) of flow changing along with time according to coordinate points obtained by continuous monitoring; 3) finding out the initial time t of expiration according to the detection signalnAnd expiration end time tpAnd calculate from tnTo tpTidal volume V during this time; 4) during continuous monitoring, the tidal volume of each exhalation is displayed via a display. According to the tidal volume monitoring method, the tidal volume of the patient can be monitored in the process of rescuing the patient by using the simple respirator, so that a doctor can adjust the operation of extruding the simple respirator according to the monitoring result, and the technical problem of insufficient ventilation or over ventilation of the patient can be better solved.
Description
Technical Field
The invention relates to the technical field of tidal volume monitoring, in particular to a tidal volume monitoring method.
Background
The simple respirator is also called a saccule or a breathing bag, is the simplest first-aid device for establishing artificial ventilation when a critical patient is rescued, and is mainly used for basic life support during cardio-pulmonary resuscitation, transfer of the critical patient, anesthesia/intubation preparation, short-time replacement of a respirator and the like. The common simple respirator generally comprises a pressurizing mask, a saccule, an oxygen storage bag, an air suction one-way valve and the like, and the aim of artificial respiration is achieved by utilizing the compression and the relaxation of the saccule.
However, in the process of rescuing patients by using the simple respirator, the tidal volume of the patients cannot be intuitively known, medical staff can only operate the simple respirator by experience, and the medical staff cannot adjust the operation of extruding the simple respirator according to actual conditions due to the lack of accurate tidal volume feedback information, so that the patients are easily ventilated insufficiently or excessively, the expected rescue effect cannot be achieved, and even the lives of the patients are threatened.
Disclosure of Invention
In view of the above, the present invention provides a tidal volume monitoring method to solve the technical problem of monitoring the tidal volume of a patient during rescue of the patient with a simple ventilator.
The tidal volume monitoring method comprises the following steps:
1) the method comprises the following steps of arranging a breathing pipeline, wherein the breathing pipeline comprises a first hose, a left nostril sealing connector head arranged at the front end of the first hose, a second hose, a right nostril sealing connector head arranged at the front end of the second hose, a collecting cavity connected with the first hose and the second hose, a third hose connected with the collecting cavity, a one-way air inlet valve arranged on the third hose, a fourth hose connected with the collecting cavity and a one-way exhaust valve arranged on the fourth hose, and the fourth hose is provided with an air flow sensor; inserting the left nostril sealing connector head and the right nostril sealing connector head into the left nostril and the right nostril of the patient respectively;
2) sampling the detection signal of the gas flow sensor according to a set frequency to obtain a plurality of coordinate points (v) corresponding to the flow and the timei，ti) Wherein v isiAt a time point tiThe subscript i is a sequence number; in a rectangular coordinate system with time t as an abscissa and flow v as an ordinate, fitting a curve equation v (f) (t) of flow changing along with time according to coordinate points obtained by continuous monitoring;
3) finding out the initial time t of expiration according to the detection signalnAnd expiration end time tpAnd calculate from tnTo tpTidal volume V during this time:
calculating the obtained V, namely the tidal volume of the patient in one expiration process;
4) during continuous monitoring, the tidal volume of each exhalation is displayed via a display.
The invention has the beneficial effects that:
according to the tidal volume monitoring method, the tidal volume of the patient can be monitored in the process of rescuing the patient by using the simple respirator, so that a doctor can adjust the operation of extruding the simple respirator according to the monitoring result, and the technical problem of insufficient ventilation or over ventilation of the patient can be better solved.
Drawings
Fig. 1 is a schematic structural diagram of a tidal volume monitoring device.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in the figure, the tidal volume monitoring method of the present embodiment includes the following steps:
1) the method comprises the following steps of arranging a breathing pipeline, wherein the breathing pipeline comprises a first hose 1, a left nostril sealing connector head 2 arranged at the front end of the first hose, a second hose 2, a right nostril sealing connector head 4 arranged at the front end of the second hose, a collecting cavity 5 connected with the first hose and the second hose, a third hose 6 connected with the collecting cavity, a one-way air inlet valve 7 arranged on the third hose, a fourth hose 8 connected with the collecting cavity and a one-way exhaust valve 9 arranged on the fourth hose, and the fourth hose is provided with an air flow sensor 10; the left nostril sealing connector head and the right nostril sealing connector head are respectively inserted into the left nostril and the right nostril of a patient.
2) Sampling the detection signal of the gas flow sensor according to a set frequency to obtain the result ifCoordinate point (v) of each flow rate corresponding to timei，ti) Wherein v isiAt a time point tiThe subscript i is a sequence number; in a rectangular coordinate system with time t as an abscissa and flow v as an ordinate, fitting a curve equation v (f) (t) of flow changing along with time according to coordinate points obtained by continuous monitoring;
3) finding out the initial time t of expiration according to the detection signalnAnd expiration end time tpAnd calculate from tnTo tpTidal volume V during this time:
calculating the obtained V, namely the tidal volume of the patient in one expiration process;
4) during continuous monitoring, the tidal volume of each exhalation is displayed via a display.
According to the tidal volume monitoring method in the embodiment, the tidal volume of the patient can be monitored in the process of rescuing the patient by using the simple respirator, so that a doctor can adjust the operation of extruding the simple respirator according to the monitoring result, and the technical problem of insufficient ventilation or over ventilation of the patient can be better solved.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (1)
1. A tidal volume monitoring method is characterized in that: the method comprises the following steps:
1) the method comprises the following steps of arranging a breathing pipeline, wherein the breathing pipeline comprises a first hose, a left nostril sealing connector head arranged at the front end of the first hose, a second hose, a right nostril sealing connector head arranged at the front end of the second hose, a collecting cavity connected with the first hose and the second hose, a third hose connected with the collecting cavity, a one-way air inlet valve arranged on the third hose, a fourth hose connected with the collecting cavity and a one-way exhaust valve arranged on the fourth hose, and the fourth hose is provided with an air flow sensor; inserting the left nostril sealing connector head and the right nostril sealing connector head into the left nostril and the right nostril of the patient respectively;
2) sampling the detection signal of the gas flow sensor according to a set frequency to obtain a plurality of coordinate points (v) corresponding to the flow and the timei，ti) Wherein v isiAt a time point tiThe subscript i is a sequence number; in a rectangular coordinate system with time t as an abscissa and flow v as an ordinate, fitting a curve equation v (f) (t) of flow changing along with time according to coordinate points obtained by continuous monitoring;
3) finding out the initial time t of expiration according to the detection signalnAnd expiration end time tpAnd calculate from tnTo tpTidal volume V during this time:
calculating the obtained V, namely the tidal volume of the patient in one expiration process;
4) during continuous monitoring, the tidal volume of each exhalation is displayed via a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210089311.4A CN114404755A (en) | 2022-01-25 | 2022-01-25 | Tidal volume monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210089311.4A CN114404755A (en) | 2022-01-25 | 2022-01-25 | Tidal volume monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114404755A true CN114404755A (en) | 2022-04-29 |
Family
ID=81278127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210089311.4A Pending CN114404755A (en) | 2022-01-25 | 2022-01-25 | Tidal volume monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114404755A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6273088B1 (en) * | 1997-06-13 | 2001-08-14 | Sierra Biotechnology Company Lc | Ventilator biofeedback for weaning and assistance |
| CN101310678A (en) * | 2008-05-07 | 2008-11-26 | 上海力申科学仪器有限公司 | Measuring method of anesthesia apparatus tidal volume |
| CN208726471U (en) * | 2017-11-29 | 2019-04-12 | 本乐乐 | The adjustable visual manual resuscitation bag of tidal volume |
| CN111658918A (en) * | 2020-05-27 | 2020-09-15 | 山东大学 | Multi-respiration index synchronous measurement system and method |
-
2022
- 2022-01-25 CN CN202210089311.4A patent/CN114404755A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6273088B1 (en) * | 1997-06-13 | 2001-08-14 | Sierra Biotechnology Company Lc | Ventilator biofeedback for weaning and assistance |
| CN101310678A (en) * | 2008-05-07 | 2008-11-26 | 上海力申科学仪器有限公司 | Measuring method of anesthesia apparatus tidal volume |
| CN208726471U (en) * | 2017-11-29 | 2019-04-12 | 本乐乐 | The adjustable visual manual resuscitation bag of tidal volume |
| CN111658918A (en) * | 2020-05-27 | 2020-09-15 | 山东大学 | Multi-respiration index synchronous measurement system and method |
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