CN111956929A - Air bag pressure management device used in positive pressure invasive ventilation operation - Google Patents
Air bag pressure management device used in positive pressure invasive ventilation operation Download PDFInfo
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- CN111956929A CN111956929A CN202010981876.4A CN202010981876A CN111956929A CN 111956929 A CN111956929 A CN 111956929A CN 202010981876 A CN202010981876 A CN 202010981876A CN 111956929 A CN111956929 A CN 111956929A
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- Prior art keywords
- air
- carbon dioxide
- concentration
- pressure
- air bag
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- 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
- A61M16/04—Tracheal tubes
- A61M16/0434—Cuffs
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- 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
- A61M16/04—Tracheal tubes
- A61M16/0402—Special features for tracheal tubes not otherwise provided for
-
- 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
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Abstract
The invention discloses a balloon pressure management device for use in positive-pressure invasive ventilation surgery, and belongs to the field of medical equipment. The invention monitors the concentration of carbon dioxide overflowing from the lung above the air bag, when the concentration of the monitored carbon dioxide is higher than the concentration of the carbon dioxide in the air, the air passage is not sealed tightly, the air pump is used for inflating the air bag, so that the air bag is in closer contact with the air passage, the air tightness of the air bag is improved, and when the concentration of the monitored carbon dioxide is lower than the concentration of the carbon dioxide in the air, the electromagnetic valve is opened for a small amount of air leakage, so that the air bag is in loose contact with the air passage and circulates in a reciprocating manner until the optimal pressure value is reached, the pressure value is continuously monitored and maintained, and the air leakage around the air bag is ensured and the mucosa of the air passage is prevented.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to an air bag pressure management device used in a positive-pressure invasive ventilation operation.
Background
The invasive positive pressure ventilation refers to a ventilation mode of performing positive pressure mechanical ventilation by establishing an artificial airway, wherein the artificial airway is a gas channel established by inserting a tracheal catheter into the airway of a patient through the nose or the mouth. The invasive respirator is a mechanical ventilation device capable of carrying out invasive positive pressure ventilation, and has the functions of assisting or controlling the respiratory movement of a patient, achieving the purposes of exchanging air in the lungs and reducing the consumption of a human body, and being beneficial to the recovery of the respiratory function of the patient.
The purpose of artifical air flue gasbag management is gaseous gas leakage when preventing patient's mechanical ventilation, avoids oral secretion mistake to go into the air flue, guarantees effective air-flow, prevents the damage of air flue mucosa. The traditional methods have minimum closure volume (MOV) and Minimum Leakage Technology (MLT), but the former is prone to airway damage, the latter is prone to aspiration and a small amount of leakage affects tidal volume.
The mainstream method at present is an air bag pressure gauge detection method, and a certain pressure (25-35 cm H) is set2O) and then monitoring the balloon pressure every 4 to 6 hours, but uncertainty due to the applicability of the set pressure (individual differences) or too long a monitoring time span may affect the patient's tidal volume or cause airway damage.
Disclosure of Invention
The invention aims to solve the problems and provides an air bag pressure management device used in a positive-pressure invasive ventilation operation, which continuously and repeatedly inflates and deflates an air bag by monitoring the concentration and the pressure of carbon dioxide above the air bag in real time, so that air leakage around the air bag is ensured and the mucosa of an airway is prevented from being damaged.
In order to realize the purpose, the invention adopts the technical scheme that: the utility model provides a gasbag pressure management device for creating malleation ventilation operation, is including inserting air duct and carbon dioxide sampling tube in the air flue, be provided with the gasbag that is used for blockking up the air flue on the air duct, be provided with the pressure regulating pipe on the gasbag, be provided with on the pressure regulating pipe and be used for measuring the pressure sensor of gasbag pressure, the carbon dioxide sampling tube is used for extracting gas between gasbag and glottis, be provided with carbon dioxide sensor on the carbon dioxide sampling tube, carbon dioxide sensor is used for detecting the concentration of carbon dioxide, pressure sensor even has the control unit, control unit and carbon dioxide sensor electric connection, when the carbon dioxide concentration value or the pressure value that record are not at predetermined carbon dioxide concentration or within range, the control unit adjusts the pressure of gasbag.
Preferably, the control unit includes solenoid valve, air pump and singlechip, the solenoid valve sets up on the pressure regulating pipe, air pump and pressure regulating pipe intercommunication, when carbon dioxide sensor detects during gasbag and glottis gaseous carbon dioxide concentration be higher than in the air oxidation carbon concentration, the air pump work is aerifyd the pressure boost to the gasbag, increases the effect that the gasbag blockked the air flue, and when carbon dioxide sensor detected during gasbag and glottis gaseous carbon dioxide concentration and is less than in the air oxidation carbon concentration, the solenoid valve opened a small amount of decompression of losing heart, reduced the effect that the gasbag blockked the air flue.
Preferably, the singlechip is a C8051F005 singlechip.
Preferably, the air duct is communicated with a conveying air source.
Preferably, a flow valve is arranged at the communication position of the pressure regulating pipe and the air pump, and the flow valve controls the flow of the air inflated by the air pump.
Preferably, a gas dryer is further arranged on the carbon dioxide sampling pipe and used for absorbing moisture of gas between the air bag and the glottis so that the gas entering the carbon dioxide sensor is kept dry.
The invention has the beneficial effects that: the utility model provides a gasbag pressure management device for creating in malleation ventilation operation, through the concentration and the pressure of real-time supervision gasbag top carbon dioxide, continuously repeatedly inflate and deflate the gasbag, prevent that the air flue mucosa is not damaged when guaranteeing not letting out gas around the gasbag.
1. According to the invention, the concentration of carbon dioxide overflowing from the lung above the air bag is monitored, and when the concentration of the monitored carbon dioxide is higher than that of carbon dioxide in the air, the air passage is not tightly sealed, and the air bag is inflated by the working of the air pump, so that the air bag is in closer contact with the air passage, and the air bag is more tightly sealed.
2. When the concentration of the carbon dioxide is lower than that of the carbon dioxide in the air, the electromagnetic valve is opened to release a small amount of air, so that the air bag is in contact with the air passage and is relaxed, and the air bag is circulated repeatedly until the optimal pressure value is reached.
3. The device can dynamically and continuously monitor and maintain the pressure value, thereby ensuring that the air is not leaked around the air bag and preventing the mucosa of the air passage from being damaged.
4. The invention has simple and reasonable structure design, convenient and quick use and strong practicability and innovation.
Drawings
Fig. 1 is a schematic diagram of the effect of the present invention in application.
FIG. 2 is a schematic view of a partial structure of the present invention.
FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention.
FIG. 4 is a schematic diagram of the system of the present invention.
The text labels in the figures are represented as: 1. an air duct; 2. a carbon dioxide sampling tube; 3. a pressure regulating pipe; 4. an air bag; 5. a carbon dioxide sensor; 6. a pressure sensor; 7. an electromagnetic valve; 8. an air pump; 9. a single chip microcomputer; 10. an airway.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
For the vast majority of patients, the primary purpose of establishing an artificial airway is to perform mechanical ventilation. However, the establishment of the artificial airway also affects the normal physiological functions of the body to a certain extent, and particularly, after a tracheal catheter is inserted into the airway of a patient, the swallowing of the patient is limited, and oral secretion and gastroesophageal reflux are blocked by the air sac and are retained above the air sac to form retentates on the air sac. If the artificial airway air bag is not tightly closed, the retentate on the air bag leaks to the lower respiratory tract along the air bag wall, so that the patient inhales by mistake and the ventilator-associated pneumonia is caused. If the pressure of the air bag is set to be too high in order to improve the air bag tightness, the air bag can obviously press mucous membrane tissues of the air passage to cause mucous membrane ischemia and necrosis, then the air passage is narrowed or even perforated to form the tracheoesophageal fistula. Therefore, the proper airtightness of the artificial airway air bag is the key for ensuring the effective ventilation volume and preventing high-risk complications such as aspiration, ventilator-associated pneumonia, airway mucosal injury and the like.
In order to solve the above problem, the following embodiments are provided, as shown in fig. 1 to 4, the specific structure of the embodiment is: the utility model provides a gasbag pressure management device for creating among malleation operation, is including inserting air duct 1, carbon dioxide sampling pipe 2 and the pressure regulating pipe 3 in air flue 10, and when using, air duct 1 and conveying gas source intercommunication, conveying gas source sets up on the breathing machine. Wherein, the air duct 1 is provided with an air bag 4 for blocking the air duct 10, one end of the pressure regulating pipe 3 is arranged on the air bag 4, the pressure regulating pipe 3 is provided with a pressure sensor 6 for measuring the pressure of the air bag 4, and the pressure sensor 6 is positioned outside the air duct 10. The carbon dioxide sampling tube 2 is used for extracting gas between the air bag 4 and the glottis, namely monitoring the concentration of carbon dioxide overflowing from the lung above the air bag 4.
Be provided with carbon dioxide sensor 5 on the carbon dioxide sampling pipe 2, carbon dioxide sensor 5 is used for detecting the concentration of the carbon dioxide that the gasbag 4 top spilled over from the lung, and pressure sensor 6 even has the control unit, and the control unit and carbon dioxide sensor 5 electric connection, the control unit is used for adjusting the pressure of gasbag 4 when the carbon dioxide concentration value or the pressure value that measure are not in predetermined carbon dioxide concentration or scope.
This embodiment is preferred, the control unit includes solenoid valve 7, air pump 8 and singlechip 9, this embodiment is preferred, singlechip 9 is C8051F005 singlechip, solenoid valve 7 sets up on pressure regulating pipe 3, air pump 8 and pressure regulating pipe 3 intercommunication, when carbon dioxide sensor 5 detects that carbon dioxide concentration is higher than the carbon oxide concentration in the air in gasbag 4 and the glottis gas, air pump 8 work is aerifyd gasbag 4, increase the effect that gasbag 4 blocks air flue 10, when carbon dioxide sensor 5 detects that carbon dioxide concentration is less than the carbon oxide concentration in the air in gasbag 4 and the glottis gas, solenoid valve 7 opens a small amount and loses heart, reduce the effect that gasbag 4 blocks air flue 10.
When the device is used, the air duct 1, the carbon dioxide sampling tube 2 and the pressure regulating tube 3 are inserted into the air passage 10, the air bag 4 is used for blocking the air passage 10, the air duct 1 is communicated with a conveying air source, positive pressure mechanical ventilation can be carried out, then the carbon dioxide sensor 5 detects the concentration of carbon dioxide in air between the air bag 4 and a glottis, the electromagnetic valve 7 detects the pressure in the air bag 4, when the carbon dioxide sensor 5 detects that the concentration of carbon dioxide in air between the air bag 4 and the glottis is higher than the concentration of carbon oxide in air, the air pump 8 works to inflate the air bag 4, the effect of the air bag 4 for blocking the air passage 10 is increased, the pressure of the air bag 4 is increased, when the carbon dioxide sensor 5 detects that the concentration of carbon dioxide in air between the air bag 4 and the glottis is lower than the concentration of carbon oxide in air, the electromagnetic valve, the pressure value is continuously monitored and maintained until the optimal pressure value is reached, so that air leakage around the air bag is ensured and the air passage mucosa is prevented from being damaged.
In the preferred embodiment, a flow valve is arranged at the communication position of the pressure regulating pipe 3 and the air pump 8, and the flow valve controls the flow rate of the air filled by the air pump 8.
In the preferred embodiment, the carbon dioxide sampling tube 2 is further provided with a gas dryer, and the gas dryer is used for absorbing moisture in the gas between the air bag 4 and the glottis so as to keep the gas entering the carbon dioxide sensor 5 dry.
In conclusion, the concentration of carbon dioxide overflowing from the lung above the air bag 4 is monitored, when the concentration of the carbon dioxide is higher than that of carbon dioxide in the air, the air passage is proved to be not tight, the air pump is used for inflating the air bag 4, so that the air bag 4 is in closer contact with the air passage, the airtightness of the air bag 4 is improved, when the concentration of the carbon dioxide is monitored to be lower than that of the carbon dioxide in the air, the electromagnetic valve 7 is opened for a small amount of air leakage, so that the air bag 4 is in loose contact with the air passage and circulates in a reciprocating mode until the optimal pressure value is reached, the pressure value is continuously monitored and maintained, and the air passage mucosa is prevented from being damaged while the air bag is kept from leaking air.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (6)
1. The utility model provides a gasbag pressure management device for creating among malleation ventilation operation, its characterized in that, is including inserting air duct and the carbon dioxide sampling pipe in the air flue, be provided with the gasbag that is used for blocking the air flue on the air duct, be provided with the pressure regulating pipe on the gasbag, be provided with on the pressure regulating pipe and be used for measuring the pressure sensor of gasbag pressure, the carbon dioxide sampling pipe is used for extracting gas between gasbag and glottis, be provided with carbon dioxide sensor on the carbon dioxide sampling pipe, carbon dioxide sensor is used for detecting the concentration of carbon dioxide, pressure sensor even has the control unit, control unit and carbon dioxide sensor electric connection, when the carbon dioxide concentration value or the pressure value that record are not in predetermined carbon dioxide concentration or scope, the control unit adjusts the pressure of gasbag.
2. The device as claimed in claim, wherein the control unit comprises a solenoid valve, an air pump and a single-chip microcomputer, the solenoid valve is disposed on the pressure regulating tube, the air pump is connected to the pressure regulating tube, when the carbon dioxide sensor detects that the concentration of carbon dioxide in the gas between the air bag and the glottis is higher than the concentration of carbon oxide in the air, the air pump is operated to pressurize the air bag by inflating, so as to increase the effect of the air bag on blocking the air passage, and when the carbon dioxide sensor detects that the concentration of carbon dioxide in the gas between the air bag and the glottis is lower than the concentration of carbon oxide in the air, the solenoid valve opens a small amount of air leakage for pressure reduction, so as to reduce the effect of the air.
3. The device of claim, wherein the single-chip microcomputer is a C8051F005 single-chip microcomputer.
4. The device of claim, wherein the airway tube is in communication with a source of delivery gas.
5. The device as claimed in claim, wherein a flow valve is disposed at the connection between the pressure regulating tube and the air pump, and the flow valve controls the flow rate of the air pumped by the air pump.
6. The device of claim, wherein a gas dryer is further disposed on the carbon dioxide sampling tube, the gas dryer is configured to absorb moisture from the gas between the balloon and the glottis to keep the gas entering the carbon dioxide sensor dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010981876.4A CN111956929A (en) | 2020-09-17 | 2020-09-17 | Air bag pressure management device used in positive pressure invasive ventilation operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010981876.4A CN111956929A (en) | 2020-09-17 | 2020-09-17 | Air bag pressure management device used in positive pressure invasive ventilation operation |
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| Publication Number | Publication Date |
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| CN111956929A true CN111956929A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010981876.4A Pending CN111956929A (en) | 2020-09-17 | 2020-09-17 | Air bag pressure management device used in positive pressure invasive ventilation operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112618899A (en) * | 2021-01-13 | 2021-04-09 | 广西医科大学附属武鸣医院 | Tracheal catheter with pressure stabilizing, anti-skidding and anti-folding functions for prone position operation |
-
2020
- 2020-09-17 CN CN202010981876.4A patent/CN111956929A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112618899A (en) * | 2021-01-13 | 2021-04-09 | 广西医科大学附属武鸣医院 | Tracheal catheter with pressure stabilizing, anti-skidding and anti-folding functions for prone position operation |
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