CN111481786A - Synchronous auxiliary breathing device of air bag inflation and deflation type breathing machine - Google Patents

Synchronous auxiliary breathing device of air bag inflation and deflation type breathing machine Download PDF

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Publication number
CN111481786A
CN111481786A CN202010407008.5A CN202010407008A CN111481786A CN 111481786 A CN111481786 A CN 111481786A CN 202010407008 A CN202010407008 A CN 202010407008A CN 111481786 A CN111481786 A CN 111481786A
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inflation
electromagnetic valve
air bag
pipeline
respirator
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杨建新
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Individual
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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration or heart stimulation, e.g. heart massage
    • 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
    • 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
    • A61M16/0006—Accessories therefor, e.g. sensors, vibrators, negative pressure with means for creating vibrations in patients' airways
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration or heart stimulation, e.g. heart massage
    • A61H2031/003—Artificial respiration or heart stimulation, e.g. heart massage with alternated thorax decompression due to lateral compression
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/165—Wearable interfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/50—Control means thereof
    • A61H2201/5056—Control means thereof pneumatically controlled
    • 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
    • A61M2205/18—General characteristics of the apparatus with alarm

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Emergency Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Cardiology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)

Abstract

The invention discloses an air bag inflation and deflation type synchronous auxiliary breathing device of a breathing machine, which comprises a device body, wherein the device body comprises a chest circumference sheath and a Y-shaped three-way pipe, the chest circumference sheath comprises a fabric layer, the fabric layer is made of flexible materials, the flexible materials have no elasticity or only micro elasticity, and an air bag is arranged on the inner side of the fabric layer; the lower end pipeline of the Y-shaped three-way pipe is communicated with the air bag through a connecting pipe, the other two pipelines of the Y-shaped three-way pipe are respectively an inflation pipeline and an exhaust pipeline, the inflation pipeline is communicated with an inflation source, two-position two-way normally-closed electromagnetic valve and two-position two-way normally-opened electromagnetic valve are respectively arranged on the inflation pipeline and the exhaust pipeline, and power connecting wires of the two-position two-way normally-closed electromagnetic valve and the two-position two-way normally-opened electromagnetic valve are connected in parallel in the same power circuit and controlled by the same relay. The invention solves the problem that the existing breathing machine can not provide power for the exhalation of a user.

Description

Synchronous auxiliary breathing device of air bag inflation and deflation type breathing machine
Technical Field
The invention relates to the field of medical instruments, in particular to a synchronous auxiliary breathing device of an air bag inflation and deflation type breathing machine.
Background
The respirator is a medical device which is commonly used and necessary in critical care units (ICU units) of all levels of hospitals. The breathing machine plays an important role in the treatment of severe patients without replacement. The working process of the existing breathing machine is as follows: when using a ventilator to assist or control breathing of a patient, the entire breathing process is made up of individual breathing cycles, each breathing cycle being divided into an inspiratory phase and an expiratory phase. In the inhalation phase, a certain amount of fresh gas rich in oxygen is sent into the lungs of the patient through a pipeline by a respirator through a certain pressure; in the expiratory phase, the elastic retractive force of the patient's lungs and thorax is used to expel the carbon dioxide-containing gas from the lungs. Thereby completing the gas exchange process within the patient's lungs.
That is, the ventilator is powered by the patient's inhalation, and is not powered by the patient's exhalation, exhaling the gas all by the natural retractive forces of the patient's lungs and thorax, which is quite different from the spontaneous breathing of a person. The intercostal muscles, abdominal muscles and diaphragm muscles of a person can provide motive force for expiration during spontaneous breathing, and particularly, sufficient expiratory motive force is required when sputum in small trachea is eliminated.
The existing breathing machine can not provide power for expiration, so that the ineffective residual capacity in the lung of patients suffering from expiratory dyspnea with narrow small airway, such as chronic obstructive pulmonary disease, persistent asthma and the like, is increased when the breathing machine is used, and the improvement of ventilation effect and blood oxygen saturation is seriously influenced. Because a constant volume type breathing mode is generally adopted when the breathing machine is used, the air volume delivered to the lung each time is a set fixed value, namely the tidal volume. The increase in ineffective residual volume in the lungs, coupled with the fixed amount of tidal volume delivered by the ventilator under pressure, necessitates excessive gas in the lungs of the patient, which for patients with severe emphysema, even with bullous lungs, is likely to cause increased lung pathology and even lung rupture. Meanwhile, due to insufficient expiratory power, secretions in the small trachea of the patient are difficult to remove, and then are accumulated to form a phlegm plug to block the small trachea. These all affect the effectiveness of the ventilator, which may even be fatal to some patients.
Disclosure of Invention
The invention aims to provide a synchronous auxiliary breathing device of an air bag inflation and deflation type breathing machine, which solves the problem that the existing breathing machine cannot provide breathing power for a user.
The invention is realized by the following technical scheme:
the synchronous auxiliary breathing device of the air bag inflation and deflation type respirator comprises a device body, wherein the device body comprises a chest circumference sheath and a Y-shaped three-way pipe, and the chest circumference sheath is communicated with the Y-shaped three-way pipe through a connecting pipe;
the bra sheath comprises a fabric layer, the fabric layer is made of flexible materials, the flexible materials are non-stretchable or have micro-stretchability, the fabric layer is of a strip-shaped structure, two ends of the strip-shaped structure are detachably connected through a connecting piece, and an air bag is arranged on the inner side of the fabric layer;
the lower end pipeline of the Y-shaped three-way pipe is communicated with the air bag through a connecting pipe, the other two pipelines of the Y-shaped three-way pipe are respectively an inflation pipeline and an exhaust pipeline, the inflation pipeline is communicated with an inflation source, two-position two-way normally-closed electromagnetic valve and two-position two-way normally-opened electromagnetic valve are respectively arranged on the inflation pipeline and the exhaust pipeline, and power connecting wires of the two-position two-way normally-closed electromagnetic valve and the two-position two-way normally-opened electromagnetic valve are connected in parallel in the same power circuit and are controlled by a relay. When the breathing machine is in an expiration phase, the two-position two-normally closed electromagnetic valve is opened, and the two-position two-normally open electromagnetic valve is closed; when the breathing machine is in the inspiration phase, the two-position two-normal open type electromagnetic valve is opened, and the two-position two-normal closed type electromagnetic valve is closed.
Preferably, one end of the connecting pipe is communicated with the end part of the air bag, namely when the chest circumference sheath is used, the connecting end of the connecting pipe and the air bag is positioned at the left or right position of the chest of a user, so that the problem of the human body being shriveled due to back connection is avoided.
The bra sheath can be made into an adult type and a child type, wherein the adult type can be made into a large size, a medium size and a small size; the fabric layer is made of flexible materials, the flexible materials are non-stretchable or slightly stretchable, the air bag can be well matched with the chest outline of a user (patient) to avoid discomfort, the air bag can be inflated and deflated through the Y-shaped three-way pipe, and the air bag can be made of rubber and coated with fabrics (such as cotton and spandex blended fabrics) with good flexibility, and is soft and elastic; the inflation source is compressed air (compressed air in a central air supply system pipeline in a hospital and compressed air in a steel cylinder for containing compressed air); the inner side is particularly the side close to the chest circumference of the patient when in use. Because the air bag with rich elasticity is in flexible contact with the chest wall of the patient, the fitting of the lead electrode plate of the ECG monitor and the chest wall of the patient is not hindered.
The working principle of the invention is as follows:
the bra protective sleeve is enclosed to the front of the chest from the back of a patient and then two ends of the bra protective sleeve are connected through the connecting piece, when the air bag is inflated, the air bag can only expand inwards to extrude the thorax inwards from the periphery because the outer fabric layer has no elasticity or only has micro-elasticity, so that the volume of the thorax is reduced, and the air in the lung is forced to be discharged.
In conclusion, the bra sheath which is arranged at the bra of the patient and can be worn comprises the fabric layer on the outer layer and the air bag on the inner layer, the fabric layer has no elasticity or only micro-elasticity, the air bag can only expand inwards to extrude the thorax from the periphery inwards, so that the volume of the thorax is reduced, the gas in the lung is forced to be discharged, and the expiration power is provided for the patient during the expiration phase of the breathing machine, thereby solving the problem that the existing breathing machine can not provide the expiration power for the user.
Further, the breathing machine control system also comprises a control system for controlling the auxiliary expiration device to be synchronous with the breathing machine, and the control system comprises a second Central Processing Unit (CPU)2A second inverse driver IC2And a relay;
the second central processing unit CPU2The input end of the second central processing unit CPU is electrically connected with the output end of a photoelectric coupler of the respirator2And the second inversion driver IC2Is electrically connected to the input terminal of the second inverter driver IC2The output end of the relay is electrically connected with the input end of the relay, and the output end of the relay is electrically connected with the two-position two-normally closed type electromagnetic valve and the two-position two-normally open type electromagnetic valve.
To safely and effectively use the auxiliary exhalation device, the air bag must be inflated in synchronization with the exhalation of the respirator, and the exhaust must be synchronized with the inhalation of the respirator.
The invention realizes the working principle of synchronizing the auxiliary expiration device and the breathing machine as follows:
when the ventilator starts the expiratory phase process, the first central processing unitCPU of device1The output terminal of the first inverter driver IC automatically outputs a high level or low level command potential according to the program1Is conducted to a second central processing unit CPU through a photoelectric coupler2Input terminal of the second central processing unit CPU2Then through the second inverse driver IC2The driving relay is connected; because the two-position two-normal closed electromagnetic valve of the gas charging pipeline and the two-position two-normal open electromagnetic valve of the exhaust pipeline of the device are connected in parallel in the same power circuit and are controlled by the relay, the two electromagnetic valves are simultaneously electrified. At the moment, the valve of the two-position two-normally closed type electromagnetic valve of the inflation pipeline is opened (the valve is normally closed), the valve of the two-position two-normally open type electromagnetic valve of the exhaust pipeline is closed (the valve is normally open), and the air bag of the device is inflated; when the breathing machine starts the inhalation phase process, the first central processing unit CPU1The output end of the electromagnetic valve sends out a low level or high level instruction potential, then the relay is disconnected through the same path, and the two electromagnetic valves lose power at the same time. At the moment, the valve of the two-position two-normally closed type electromagnetic valve of the inflation pipeline is closed, the valve of the two-position two-normally open type electromagnetic valve of the exhaust pipeline is opened, and the gas in the device airbag can be smoothly exhausted. Therefore, the first central processing unit CPU enables the air bag of the inflatable and deflatable bra sheath to be inflated and deflated in the respirator1The synchronous control of the breathing machine is realized under the control of the output command potential.
To sum up, the control system of the present invention is combined with the device body to realize: when the respirator is in an expiration phase, a valve of a two-position two-normally closed electromagnetic valve of an inflation pipeline of the device is opened, a valve of a two-position two-normally open electromagnetic valve of an exhaust pipeline is closed, pressure gas is filled into an air bag through the inflation pipeline, and the air bag expands to press the thorax of a patient to force the gas in the lungs to be exhaled; when the breathing machine is in the inspiration phase, the breathing machine sends gas into the lungs of the patient, the thorax of the patient expands, at the moment, the valve of the two-position two-normally closed electromagnetic valve of the inflation pipeline of the device is closed, the valve of the two-position two-normally open electromagnetic valve of the exhaust pipeline is opened, the air bag capable of inflating and deflating the thorax smoothly and timely exhausts the gas under the action of elastic retraction force, and the volume is reduced, so that a space is vacated for the expansion of the thorax.
Furthermore, the control system also comprises a safety valve and a second Central Processing Unit (CPU)2And the safety valve and the pressure sensor are arranged on the Y-shaped three-way pipe.
The pressure sensor is used for collecting the pressure in the Y-shaped tee pipe in real time, the safety valve plays a role in limiting the pressure, and when the pressure exceeds a certain value, the valve is opened to discharge pressure gas so as to reduce the pressure:
the pressure sensor transmits the collected pressure signal to the second CPU2A second central processing unit CPU2Comparing with the pressure value set in the Y-shaped tee pipe to judge whether the pressure of the pipeline is in an overpressure state, namely when the pressure in the Y-shaped tee pipe is higher than a certain value, the CPU2The alarm gives an alarm sound and can control the relay to be disconnected, so that the pipeline is in an exhaust state under the power-off state. When the pressure in the Y-shaped three-way pipe is reduced to be below a certain value, the CPU2The pipeline system is returned to the working state again by controlling the relay to be switched on.
Furthermore, the junction of the three pipelines of the Y-shaped three-way pipe is expanded to form an air chamber, and the safety valve and the pressure sensor are arranged in the air chamber.
The space of the air chamber is relatively large, and a safety valve and a pressure sensor are favorably mounted.
Further, the control system also comprises a display and an alarm which are electrically connected with the second central processing unit.
The pressure sensor transmits the pressure signal to the second CPU2Input terminal of the second central processing unit CPU2The pressure value can be displayed on a display electrically connected with the pressure value in real time; if the pressure exceeds the set value, the second CPU2An alarm can be given out through an alarm; if the pressure rises further than the upper limit value, the second CPU2Also sends out command potential and passes through the second inverse driver IC2The relay is controlled to be disconnected, and at the moment, the two-position two-normally closed type electromagnetic valve of the gas charging pipelineThe two-position two-normal open type electromagnetic valve of the valve closing and exhaust pipeline is opened, and the gas in the chest circumference air bag is exhausted (the gas needs to be exhausted in a second central processing unit CPU in advance)2Set the corresponding pressure limit).
Furthermore, the inflation source of the device is designed to be compressed air, and the device can be used after being decompressed by a decompression valve because the pressure in a central air supply system pipeline in a hospital or the pressure in a steel cylinder containing compressed air is very high. The invention is provided with a pressure reducing valve at the inlet end of the inflation pipeline. The pressure of the pressure reducing valve is adjustable and can display the pressure value. If the compressed air pressure that gets into the admission line is too high flow too big, the gasbag can be filled with at the excessive speed, and if the pressure is too low flow undersize, the gasbag still aerifys inadequately when aerifing to the expiration phase end, and this two kinds of circumstances all influence the supplementary effect of exhaling of this device, and accessible relief pressure valve is adjusted this moment. Because the compressed air absorbs heat when reducing pressure and the air in the pipeline takes away heat, an electric heating element can be additionally arranged in the air inlet pipeline for preventing the excessive loss of the body temperature of the human body.
Further, the relay is a contactless relay.
Because the breathing machine is a device which is communicated with high-concentration oxygen, the device uses a non-contact relay to avoid fire safety hidden trouble caused by electric arc generated when a contact relay works and electromagnetic interference on sensitive circuit components.
Furthermore, the middle part of the outer side of the fabric layer is provided with 2 braces, and the end parts of the 2 braces are detachably connected with the outer sides of the two ends of the fabric layer respectively.
2 straps are detachably connected to the chest around the shoulders respectively to avoid sliding downwards.
Furthermore, the end of the strap and the outer sides of the two ends of the fabric layer are provided with magic tapes, and the connecting piece is a hasp.
The ends of the straps and the outer sides of the two ends of the fabric layer may also be connected by a snap.
Furthermore, the fabric layer is made of double-layer cotton canvas, and the connecting pipe is a bendable transparent plastic threaded pipe.
The transparent plastic threaded pipe is non-toxic and bendable, can bear certain pressure, is not easy to collapse, and can meet the requirements of a connecting pipe; the inner diameter of the adult-type connecting pipe is not less than 1.5 cm, so that smooth and timely air flow passing is guaranteed.
The invention is suitable for patients with various dyspnea and respiratory failure and needing to use a breathing machine to assist breathing or control breathing, in particular to patients with expiratory dyspnea, including patients with chronic obstructive pulmonary disease and the like with small airway stenosis and excessive ineffective residual capacity in lungs, patients with severe emphysema and pulmonary bullae, patients with old or various pathological changes causing obvious reduction of compliance of lungs and chest walls, patients in asthma persistent state and patients with sputum blockage and weak discharge of small airway. Particularly, when the patient uses the respirator to perform high-concentration oxygen mechanical ventilation and the blood oxygen saturation is still seriously low, the synchronous auxiliary exhalation device of the air bag inflation and deflation type respirator can be added in time to improve the ventilation efficiency of the patient and improve the blood oxygen saturation of the patient. Contraindications are severe chest wall fractures, extensive malignant tumors of the chest wall and severe soft tissue injuries or infections of the chest wall.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the chest circumference sheath which is arranged at the chest circumference of the patient and can be worn comprises the outer fabric layer and the inner air bag, the fabric layer is not stretched or has micro-stretching property, the air bag can only expand inwards to extrude the thorax from the periphery inwards, so that the volume of the thorax is reduced, the gas in the lung is forced to be discharged, and the expiration power is provided for the patient when the respirator is in an expiration phase.
2. The auxiliary expiration device of the invention belongs to non-invasive medical equipment, has no matter to enter the body of a patient in use, is provided with a pressure reducing valve, a pressure sensor and a safety valve, and has high safety coefficient.
3. When the auxiliary exhalation device is powered off, the valve of the two-position two-normally closed type electromagnetic valve of the inflation pipeline is in a naturally closed state, and the valve of the two-position two-normally open type electromagnetic valve of the exhaust pipeline is in a naturally open state, so that the safety coefficient is further improved.
4. Even if the pressure in the safety protection system in the whole failure air bag is continuously increased and not reduced under the most extreme condition, the patient can automatically compensate by abdominal respiration due to the limited expansion of the thorax, and the life of the patient can not be endangered in a short time; and at the moment, the pressure of the breathing machine can be triggered to alarm due to the rise of the airway pressure of the patient until the air bag is burst or the connection buckle of the bust is burst so as to release the constraint on the thorax of the patient.
5. The power supply of the auxiliary expiration device and the power supply of the breathing machine are two completely independent power supplies which are not connected with the ground, and the air circuit systems of the two are not connected. The only connection point of the two is that the breathing machine transmits out a breathing pace signal in a photoelectric coupling mode and then transmits the breathing pace signal to the auxiliary exhalation device through two leads. As shown in fig. 2, only the portion within the dashed line box in the figure is the portion belonging to the ventilator. When in manufacturing, the device can be made into independent medical equipment, only a socket needs to be designed and installed or additionally installed on a matched respirator, and the two signal wires are connected with the device through the socket when in use; therefore, the synchronous auxiliary breathing device of the inflation and deflation type breathing machine is easy to popularize.
6. Because the respirator is isolated from the respirator through the photoelectric coupler, the power supply of the respirator cannot enter a circuit system of the respirator due to the isolation. Therefore, no matter what kind of faults occur in the device, the device cannot affect the breathing machine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a synchronous auxiliary exhalation device;
fig. 2 is a schematic diagram of the control circuit of the present invention.
Reference numbers and corresponding part names in the drawings:
the system comprises a fabric layer 1, a fabric layer 2, an air bag 3, a connecting pipe 4, a connecting piece 5, a strap 6, a magic tape 7, a Y-shaped three-way pipe 8, an air chamber 9, a safety valve 10, a pressure sensor 11, a two-position two-way normally-open electromagnetic valve 12, a two-position two-way normally-closed electromagnetic valve 13, a pressure reducing valve 14, an alarm 15, a display 16, a relay 17 and a photoelectric coupler.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.
Example 1:
as shown in fig. 1, the synchronous auxiliary breathing device of the air bag inflation and deflation type breathing machine comprises a device body, wherein the device body comprises a chest circumference sheath and a Y-shaped three-way pipe 7, and the chest circumference sheath is communicated with the Y-shaped three-way pipe 7 through a connecting pipe 3;
the bra sheath comprises a fabric layer 1, the fabric layer 1 is made of double-layer cotton woven canvas, the fabric layer has certain softness and no elasticity or micro elasticity, the fabric layer 1 is of a strip-shaped structure, two ends of the strip-shaped structure are detachably connected through a connecting piece 4, the connecting piece 4 is a hasp, and an air bag 2 is arranged on the inner side of the fabric layer 1; the connecting pipe 3 is a bendable transparent plastic threaded pipe.
The lower end pipeline of the Y-shaped three-way pipe 7 is communicated with the air bag 2 through the connecting pipe 3, the other two pipelines of the Y-shaped three-way pipe 7 are respectively an inflation pipeline and an exhaust pipeline, and the inflation pipeline is communicated with an inflation source. The two-position two-normally closed type electromagnetic valve 12 and the two-position two-normally open type electromagnetic valve 11 are respectively arranged on the inflation pipeline and the exhaust pipeline, power connecting lines of the two-position two-normally closed type electromagnetic valve 12 and the two-position two-normally open type electromagnetic valve 11 are connected in parallel in the same power circuit and are controlled by the same relay 16, when the breathing machine is in an expiration phase, the two-position two-normally closed type electromagnetic valve 12 is opened, and the two-position two-normally open type electromagnetic valve 11 is closed; when the respirator is in the inspiration phase, the two-position two-normally-open type electromagnetic valve 11 is opened, and the two-position two-normally-closed type electromagnetic valve 12 is closed.
The working principle of the embodiment is as follows:
when the breathing machine is used for assisting breathing or controlling breathing of a patient, when the breathing machine starts an expiratory phase process, the inflation pipe fills gas into the air bag 2 and expands the air bag; because the fabric layer 1 is made of fabric without or with slight elasticity, the air bag 2 can only expand inwards, thereby generating a centripetal extrusion force from the periphery inwards to the thorax of the patient, and forcing the air in the lung in the thorax to be exhaled; when the breathing machine starts the inhalation phase process, the inflation pipeline is closed, the exhaust pipeline is opened, the gas in the air bag 2 is smoothly and timely discharged under the action of the elastic retraction force of the air bag 2, the volume of the air bag is reduced, and a space is left for the expansion of the thorax. The air charging and exhausting processes are carried out alternately and repeatedly, so that the auxiliary exhalation device can provide certain exhalation power for a patient using the respirator, and the auxiliary exhalation device has the effects of reducing invalid residual air in the lung, increasing tidal volume, promoting sputum excretion, increasing the ventilation effect of the respirator and improving the blood oxygen saturation of the patient.
Example 2:
as shown in fig. 1 and fig. 2, this embodiment is based on embodiment 1, and further includes a control system for controlling the auxiliary exhalation device to be synchronized with the ventilator, where the control system includes a second central processing unit CPU2A second inverse driver IC2And a relay 16;
the second central processing unit CPU2Is electrically connected with the output end of a photoelectric coupler 17 of the respirator, and the second central processing unit CPU2And the second inversion driver IC2Is electrically connected to the input terminal of the second inverter driver IC2Is electrically connected to the input of the relay 16, the output of the relay 16 is electrically connected to the two-position two-normally closed solenoid valve 12 and the two-position two-normally open solenoid valve 11.
The working principle of the embodiment is as follows:
when the breathing machine starts the expiratory phase process, the first central processing unit CPU1The output end of the controller automatically outputs a high level or low level command potential according to the program, and the command potential is driven by the first reverse directionActuator IC1Is conducted to the second central processing unit CPU through the photoelectric coupler 172Input terminal of the second central processing unit CPU2Then through the second inverse driver IC2The drive relay 16 is switched on; because the two-position two-normally closed type electromagnetic valve 12 of the gas charging pipeline and the two-position two-normally open type electromagnetic valve 11 of the exhaust pipeline of the device are connected in parallel in the same power circuit and are controlled by the relay 16, the two electromagnetic valves are simultaneously electrified. At the moment, the valve of the two-position two-way normally closed electromagnetic valve 12 of the inflation pipeline is opened, the valve of the two-position two-way normally open electromagnetic valve 11 of the exhaust pipeline is closed, and the air bag of the device is inflated; when the breathing machine starts the inhalation phase process, the first central processing unit CPU1The output of which sends a low or high level command potential and then disconnects the relay 16 through the same path, the two solenoid valves are de-energized simultaneously. At the moment, the valve of the two-position two-normally closed electromagnetic valve 12 of the inflation pipeline is closed, the valve of the two-position two-normally open electromagnetic valve 11 of the exhaust pipeline is opened, and the gas in the airbag of the device can be smoothly discharged; thus, the first central processing unit CPU in the respirator makes the air bag 2 of the inflatable and deflatable bra sheath inflate and deflate1The synchronous control of the breathing machine is realized under the control of the output instruction potential. (of course, this requires that the CPU be preceded by a CPU1Programmed to output a breath cadence signal).
Example 3:
as shown in fig. 1 and 2, in this embodiment, based on embodiment 2, the control system further includes a safety valve 9 and a second CPU2An electrically connected pressure sensor 10; the junction of the three pipelines of the Y-shaped three-way pipe 7 is expanded to form an air chamber 8, and the safety valve 9 and the pressure sensor 10 are arranged in the air chamber 8; the control system also comprises a CPU (central processing unit) connected with the second central processing unit2A display 15 and an alarm 14 electrically connected; the control system also comprises a pressure reducing valve 13, and the pressure reducing valve 13 is connected in series with the inflation pipeline; the relay 16 is a contactless relay.
Example 4:
as shown in fig. 1 and 2, in this embodiment, based on any one of embodiments 1 to 3, 2 straps 5 are provided in the middle of the outer side of the fabric layer 1, and the end portions of the 2 straps 5 are respectively connected to the outer sides of both ends of the fabric layer 1 by hook and loop fasteners 6.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The synchronous auxiliary breathing device of the air bag inflation and deflation type respirator is characterized by comprising a device body, wherein the device body comprises a chest circumference sheath and a Y-shaped three-way pipe (7), and the chest circumference sheath is communicated with the Y-shaped three-way pipe (7) through a connecting pipe (3);
the bra sheath comprises a fabric layer (1), the fabric layer (1) is made of flexible materials, the flexible materials are non-stretchable or slightly stretchable, the fabric layer (1) is of a strip-shaped structure, two ends of the strip-shaped structure are detachably connected through a connecting piece (4), and an air bag (2) is arranged on the inner side of the fabric layer (1);
the lower end pipeline of the Y-shaped three-way pipe (7) is communicated with the air bag (2) through a connecting pipe (3), the other two pipelines of the Y-shaped three-way pipe (7) are respectively an inflation pipeline and an exhaust pipeline, the inflation pipeline is communicated with an inflation source, the inflation pipeline and the exhaust pipeline are respectively provided with a two-position two-normal closed electromagnetic valve (12) and a two-position two-normal open electromagnetic valve (11), the power supply connecting wires of the two-position two-normal closed type electromagnetic valve (12) and the two-position two-normal open type electromagnetic valve (11) are connected in parallel in the same power supply circuit, when the respirator is in the expiration phase, the two-position two-normal closed electromagnetic valve (12) is opened and the two-position two-normal open electromagnetic valve (11) is closed, when the respirator is in the inspiration phase, the two-position two-normal open type electromagnetic valve (11) is opened and the two-position two-normal closed type electromagnetic valve (12) is closed.
2. The synchronous auxiliary breathing device of an airbag inflation and deflation type respirator of claim 1, further comprising a control system for controlling the synchronous auxiliary breathing device and the respirator, wherein the control system comprises a second Central Processing Unit (CPU)2A second inverse driver IC2And a relay (16);
the second central processing unit CPU2The input end of the second central processing unit CPU is electrically connected with the output end of a photoelectric coupler (17) of the respirator2And the second inversion driver IC2Is electrically connected to the input terminal of the second inverter driver IC2The output end of the relay (16) is electrically connected with the input end of the relay (16), and the output end of the relay (16) is electrically connected with the two-position normally closed electromagnetic valve (12) and the two-position normally open electromagnetic valve (11).
3. The synchronous auxiliary exhalation device of airbag inflation/deflation type respirator of claim 2, wherein the control system further comprises a safety valve (9) and a second CPU (central processing unit)2And the safety valve (9) and the pressure sensor (10) are arranged on the Y-shaped three-way pipe (7).
4. The synchronous auxiliary exhalation device of the air bag inflation and deflation type respirator of claim 3, wherein the junction of the three pipes of the Y-shaped tee pipe (7) is expanded to form an air chamber (8), and the safety valve (9) and the pressure sensor (10) are arranged in the air chamber (8).
5. The synchronous auxiliary exhalation device of the airbag inflation and deflation type respirator of claim 3, wherein the control system further comprises a second CPU (central processing unit)2A display (15) and an alarm (14) which are electrically connected.
6. The synchronous auxiliary breathing device of an airbag inflation and deflation type respirator of claim 2, wherein the control system further comprises a pressure reducing valve (13), and the pressure reducing valve (13) is arranged on the inflation pipeline.
7. The synchronous auxiliary exhalation device of an airbag inflation/deflation type respirator of claim 2, wherein the relay (16) is a contactless relay.
8. The synchronous auxiliary breathing device of the air bag inflation and deflation type respirator of claim 1, wherein the middle part of the outer side of the fabric layer (1) is provided with 2 braces (5), and the ends of the 2 braces (5) are respectively detachably connected with the outer sides of the two ends of the fabric layer (1).
9. The synchronous auxiliary breathing device of an air bag inflation and deflation type respirator of claim 8, wherein the ends of the straps (5) and the outer sides of the two ends of the fabric layer (1) are provided with magic tapes (6), and the connecting piece (4) is a hasp.
10. The synchronous auxiliary breathing device of an air bag inflation and deflation type respirator of any one of claims 1 to 9, wherein the fabric layer (1) is made of double-layer cotton canvas, and the connecting pipe (3) is a transparent plastic threaded pipe.
CN202010407008.5A 2020-05-14 2020-05-14 Synchronous auxiliary breathing device of air bag inflation and deflation type breathing machine Pending CN111481786A (en)

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TWI822207B (en) * 2022-07-26 2023-11-11 睿德輔具股份有限公司 breathing assistance device
CN117282047A (en) * 2023-11-24 2023-12-26 四川省肿瘤医院 Intelligent auxiliary system for tumor target area radiotherapy

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CN1185101A (en) * 1995-03-15 1998-06-17 约翰斯霍普金斯大学 Improved vest design for cardiopulmonary resuscitation system
CN2519668Y (en) * 2001-12-07 2002-11-06 李国荣 Thorax moving asistant physical therapy instrument
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CN107126610A (en) * 2017-06-08 2017-09-05 青岛大学附属医院 A kind of intelligent breathing machine
CN111068156A (en) * 2019-12-30 2020-04-28 河南利诺医疗科技有限公司 Air bag pressure adjusting system for respirator and using method thereof

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Publication number Priority date Publication date Assignee Title
CN1185101A (en) * 1995-03-15 1998-06-17 约翰斯霍普金斯大学 Improved vest design for cardiopulmonary resuscitation system
CN2519668Y (en) * 2001-12-07 2002-11-06 李国荣 Thorax moving asistant physical therapy instrument
CN203965102U (en) * 2013-12-10 2014-11-26 中煤科工集团重庆研究院有限公司 Respirator intelligent checking instrument
CN104840351A (en) * 2015-05-29 2015-08-19 韩锋 Wearable external chest compression respirator synchronous to expiratory phase
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CN117282047A (en) * 2023-11-24 2023-12-26 四川省肿瘤医院 Intelligent auxiliary system for tumor target area radiotherapy
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