CN114177467A - Breathing machine - Google Patents
Breathing machine Download PDFInfo
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- CN114177467A CN114177467A CN202111460717.0A CN202111460717A CN114177467A CN 114177467 A CN114177467 A CN 114177467A CN 202111460717 A CN202111460717 A CN 202111460717A CN 114177467 A CN114177467 A CN 114177467A
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
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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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
- A61M16/16—Devices to humidify the respiration air
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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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
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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
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1025—Respiratory system
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the technical field of medical equipment, and discloses a breathing machine which comprises a breathing mask, an air source, a machine body, an air-oxygen mixing mechanism, a humidifying mechanism, a drug delivery mechanism and a drug mixing mechanism, wherein a first air suction pipeline is connected between the drug mixing mechanism and the breathing mask; the medicine mixing mechanism comprises a second air suction pipeline, a first sleeve, a second sleeve, a medicine inlet pipeline, a medicine recovery pipeline and a driving motor, the second air suction pipeline is connected with the humidifying mechanism, the first sleeve is coaxially sleeved on the second air suction pipeline, and the end part of the first sleeve is provided with a stopping inclined plane; the second sleeve is coaxially arranged on the outer peripheral side of the first sleeve, the first end of the second sleeve is connected with the first air suction pipeline, the second end of the second sleeve is connected to the second air suction pipeline in a sliding mode, and the driving motor is in transmission connection with the second sleeve; a medicine mixing cavity is formed between the first sleeve and the second sleeve, and the medicine inlet pipeline and the medicine recovery pipeline are respectively connected between the second sleeve and the medicine feeding mechanism.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a breathing machine.
Background
A ventilator is a medical device capable of artificially replacing an autonomous ventilation function, and has been commonly used in respiratory failure due to various causes, anesthetic breathing management during major surgery, respiratory support therapy, and emergency resuscitation. When the patient uses the respirator, the gas processed by the respirator enters the breathing mask through the connecting pipeline for the patient to breathe. When the patient uses the breathing machine, can be generally along with the device of dosing, directly act on the trachea with the medicine through the breathing machine, can make the more direct of medicine effect, and make things convenient for the patient to use medicine. At present, in the existing breathing machine, different pipelines are generally used for respectively conveying gas and medicine, then the medicine is collected in a connecting pipeline for conveying the gas, and then the mixture of the medicine and the gas is conveyed to a breathing mask through the connecting pipeline for a patient to use. However, the gas and the medicine processed by the respirator are easy to be condensed into liquid drops at the collection position, the liquid drops are attached to the inner wall of the connecting pipeline for conveying the gas, the subsequent gas conveying is not facilitated, and the liquid drops contain part of the medicine, so that the medication time and the medicine dosage are difficult to control.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a ventilator, so as to solve the problems that in the existing ventilator, the gas and the drug processed by the ventilator are easily condensed into liquid drops at the collection position, the liquid drops adhere to the inner wall of the connecting pipeline for transporting the gas, which is not favorable for transporting the subsequent gas, and the liquid drops contain a part of the drug, so that the medication time and the dosage of the drug are difficult to control.
In order to achieve the purpose, the invention adopts the following technical scheme:
the breathing machine comprises a breathing mask, an air source, a machine body, and an air-oxygen mixing mechanism, a humidifying mechanism, a drug delivery mechanism and a drug mixing mechanism which are arranged in the machine body, wherein the air source, the air-oxygen mixing mechanism and the humidifying mechanism are sequentially connected, the humidifying mechanism and the drug delivery mechanism are both connected with the drug mixing mechanism, and a first air suction pipeline is connected between the drug mixing mechanism and the breathing mask;
the medicine mixing mechanism comprises a second air suction pipeline, a first sleeve, a second sleeve, a medicine inlet pipeline, a medicine recovery pipeline and a driving motor, wherein the first end of the second air suction pipeline is connected to the air outlet of the humidifying mechanism, the first sleeve is coaxially sleeved on the second air suction pipeline and is close to the second end, and the end part of the first sleeve is provided with a stopping inclined surface; the second sleeve is coaxially arranged on the outer peripheral side of the first sleeve, a first end of the second sleeve is connected with the first air suction pipeline, a second end of the second sleeve is connected onto the second air suction pipeline in a sliding mode, and the driving motor is in transmission connection with the second sleeve; a medicine mixing cavity is formed between the first sleeve and the second sleeve, and the medicine inlet pipeline and the medicine recovery pipeline are respectively connected between the second sleeve and the medicine feeding mechanism;
when air is sucked, the second end of the second air suction pipeline is inserted into the first air suction pipeline, the end part of the first air suction pipeline is abutted against the stopping inclined surface, and the medicine mixing cavity is closed; when medicine is fed, the driving motor drives the second sleeve to slide, the second end of the first air suction pipeline is separated from the second end of the second air suction pipeline, and the medicine mixing cavity is communicated with the first air suction pipeline.
Preferably, the second end of the second air suction pipe is tapered, and a tapered surface of the second end of the second air suction pipe is coplanar with the inclined stop surface.
Preferably, the first end of the second sleeve is tapered, and an inclination angle of a tapered surface of the first end of the second sleeve is greater than or equal to an inclination angle of the stop inclined surface.
Preferably, the drug recovery conduit is connected at the junction between the tapered surface of the first end of the second sleeve and the wall of the second sleeve.
Preferably, a liquid collecting pipe and a control valve are arranged on the drug recovery pipeline, and the control valve is arranged between the liquid collecting pipe and the drug administration mechanism.
Preferably, empty oxygen mixing mechanism includes the blending tank, be provided with oxygen import, air intlet and gas mixture export on the blending tank, oxygen import air intlet with the gas mixture export all sets up the lateral wall of blending tank, oxygen import is connected with first intake pipe, air intlet is connected with the second intake pipe, first intake pipe with the second intake pipe is arranged perpendicularly.
Preferably, a filter plate is arranged in the mixing tank, a plurality of filter holes are uniformly distributed on the filter plate, the mixed gas outlet is formed above the filter plate, and the oxygen inlet and the air inlet are formed below the filter plate.
Preferably, the breathing machine still includes temperature and humidity control mechanism, temperature and humidity control mechanism includes the controller, sets up first humidity transducer in the humidification mechanism, set up and be in temperature sensor in the humidification mechanism, set up and be in the hot plate of first sleeve inner wall, first humidity transducer temperature sensor the hot plate all with the controller electricity is connected.
Preferably, the breathing mask is further connected with an expiration pipeline, and the expiration pipeline is connected with an exhaust gas storage tank.
Compared with the prior art, the breathing machine provided by the embodiment of the invention has the beneficial effects that:
the respirator provided by the embodiment of the invention is provided with an air-oxygen mixing mechanism, a humidifying mechanism, a drug administration mechanism and a drug mixing mechanism, wherein the drug mixing mechanism comprises a second air suction pipeline, a first sleeve, a second sleeve, a drug inlet pipeline, a drug recovery pipeline and a driving motor, and the driving motor drives the second sleeve to slide so that a drug mixing cavity is closed or communicated with the first air suction pipeline, and a drug conveying channel is communicated or disconnected with the first air suction channel. When the medicine mixing chamber is closed, the medicine conveying channel is disconnected with the first air suction channel, and the air-oxygen mixed gas is conveyed to the breathing mask through the air-oxygen mixing mechanism, the humidifying mechanism, the second air suction pipeline and the first air suction pipeline in sequence, so that the mutual interference of the medicine in the medicine mixing chamber and the conveyed air-oxygen mixed gas is avoided, and the influence of residual liquid drops on the inner wall of the medicine mixing chamber on the conveying of the air-oxygen mixed gas is avoided. When the medicine mixing cavity is communicated with the first air suction pipeline, the medicine conveying channel is opened, and the air-oxygen mixed gas and the medicine are mixed in the medicine mixing cavity and then conveyed to the breathing mask through the first air suction pipeline. The medicine and the air-oxygen mixed gas are collected in the medicine mixing cavity and then are conveyed through the first air suction pipeline, compared with the condition that the conveyed medicine is directly collected in the air suction pipeline, the medicine conveying channel and the air-oxygen mixed gas are not interfered with each other in conveying, and the condition that liquid drops formed by condensation of the air-oxygen mixed gas and the medicine at the collection position influence the conveying of subsequent gas is avoided.
In addition, the drug recovery pipeline is arranged, so that liquid drops condensed at the convergence part of the air-oxygen mixed gas and the drugs flow back to the drug administration mechanism through the drug recovery pipeline for recycling, on one hand, drug waste is avoided, and on the other hand, accurate control of the drug administration time and the drug dosage is facilitated.
Drawings
FIG. 1 is a schematic diagram of a ventilator according to an embodiment of the present invention;
FIG. 2 is a first schematic view of the mixing mechanism of FIG. 1;
FIG. 3 is a second schematic view of the drug mixing mechanism of FIG. 1;
in the figure, 1, a breathing mask; 2. an oxygen storage tank; 3. a body; 4. an air-oxygen mixing mechanism; 41. a mixing tank; 411. an oxygen inlet; 412. an air inlet; 413. a mixed gas outlet; 42. filtering the plate; 421. filtering holes; 5. a humidifying mechanism; 51. a first humidity sensor; 6. a drug delivery mechanism; 7. a drug mixing mechanism; 71. a second suction duct; 711. a temperature sensor; 72. a first sleeve; 721. stopping the inclined surface; 722. heating plates; 73. a second sleeve; 74. a medicine inlet pipeline; 75. a drug recovery conduit; 751. a liquid collecting pipe; 752. a control valve; 8. a first air intake duct.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-3, a breathing machine according to an embodiment of the present invention includes a breathing mask 1, an air source, a machine body 3, and an air-oxygen mixing mechanism 4, a humidifying mechanism 5, a drug administration mechanism 6, and a drug mixing mechanism 7 which are disposed in the machine body 3, wherein the air source, the air-oxygen mixing mechanism 4, and the humidifying mechanism 5 are sequentially connected, the air source includes an air source and an oxygen source, the air source can be stored in an air storage tank, the oxygen source is stored in an oxygen storage tank 2, the air storage tank and the oxygen storage tank 2 are both connected to the air-oxygen mixing mechanism 4, and the air-oxygen mixing mechanism 4 outputs air-oxygen mixed gas; the humidifying mechanism 5 and the dosing mechanism 6 are both connected with the medicine mixing mechanism 7, and a first air suction pipeline 8 is connected between the medicine mixing mechanism 7 and the breathing mask 1; the humidifying mechanism 5 is used for conveying the air-oxygen mixed gas after humidification treatment to the medicine mixing mechanism 7, the administration mechanism 6 is used for conveying the medicine required by the patient to the medicine mixing mechanism 7, and when medicine delivery is not needed, the air-oxygen mixed gas is conveyed to the breathing mask 1 through the first air suction pipeline 8; when a patient needs to deliver medicine, the air-oxygen mixed gas and the medicine are mixed in the medicine mixing mechanism 7 and then are conveyed to the breathing mask 1 through the first air suction pipeline 8 for the patient to use.
Specifically, the medicine mixing mechanism 7 comprises a second air suction pipeline 71, a first sleeve 72, a second sleeve 73, a medicine inlet pipeline 74, a medicine recovery pipeline 75 and a driving motor, wherein a first end of the second air suction pipeline 71 is connected to an air outlet of the humidifying mechanism 5 for conveying the air-oxygen mixed gas output by the humidifying mechanism 5; the first sleeve 72 is coaxially sleeved on the second air suction pipe 71 and is close to the second end, one end of the first sleeve 72 is provided with a stop inclined surface 721, and the end is close to the second end of the second air suction pipe 71; the other end of the first sleeve 72 is arranged at intervals with the air outlet of the humidifying mechanism 5; the second sleeve 73 is coaxially arranged on the outer peripheral side of the first sleeve 72, a first end of the second sleeve 73 is connected with the first air suction pipe 8, a second end of the second sleeve 73 is slidably connected on the second air suction pipe 71, and a second end of the second sleeve 73 is arranged between the other end of the first sleeve 72 and the air outlet of the humidifying mechanism 5; the driving motor is in transmission connection with the second sleeve 73 to drive the second sleeve 73 to move along the second air suction pipeline 71; the first sleeve 72 with form the medicine mixing chamber between the second sleeve 73, advance medicine pipeline 74, medicine recovery pipeline 75 is connected respectively second sleeve 73 with between the mechanism of dosing 6, specifically for the one end and the medicine mixing chamber intercommunication of advancing medicine pipeline 74, the other end mechanism of dosing 6 of advancing medicine pipeline 74 connects, the one end and the medicine mixing chamber intercommunication of medicine recovery pipeline 75, the other end and the mechanism of dosing 6 of medicine recovery pipeline 75 are connected, carry the medicine in the mechanism of dosing 6 to the medicine mixing chamber through advancing medicine pipeline 74, retrieve the remaining medicine in the medicine mixing chamber through medicine recovery pipeline 75 and carry to the mechanism of dosing 6.
When a patient does not need to take medicine and only needs to inhale, as shown in fig. 3, the second end of the second inhalation pipeline 71 is inserted into the first inhalation pipeline 8, the end of the first inhalation pipeline 8 abuts against the blocking inclined surface 721 to block the communication between the medicine mixing cavity and the first inhalation pipeline 8, so that the medicine mixing cavity is closed, and the oxygen-air mixed gas conveyed by the second inhalation pipeline 71 does not enter the medicine mixing cavity any more, but directly enters the first inhalation pipeline 8 and is conveyed to the breathing mask 1 through the first inhalation pipeline 8; as shown in fig. 2, when a patient needs to take a medicine, the driving motor drives the second sleeve 73 to slide along the second inhalation tube 71, the first inhalation tube 8 is separated from the second end of the second inhalation tube 71, the medicine mixing chamber is communicated with the first inhalation tube 8, and the medicine in the administration mechanism 6 and the oxygen-air mixed gas in the second inhalation tube 71 are mixed by the medicine mixing chamber and then are delivered to the breathing mask 1 through the first inhalation tube 8.
The respirator provided by the embodiment of the invention is provided with an air-oxygen mixing mechanism 4, a humidifying mechanism 5, a drug administration mechanism 6 and a drug mixing mechanism 7, wherein the drug mixing mechanism 7 comprises a second inspiration pipeline 71, a first sleeve 72, a second sleeve 73, a drug inlet pipeline 74, a drug recovery pipeline 75 and a driving motor, and the drug mixing cavity is closed or communicated with a first inspiration pipeline 8 by driving the sliding of the second sleeve 73 through the driving motor, so that a drug delivery channel is communicated or disconnected with the first inspiration channel. When the medicine mixing chamber is closed, the medicine conveying channel is disconnected with the first air suction channel, and the air-oxygen mixed gas is conveyed to the breathing mask 1 through the air-oxygen mixing mechanism 4, the humidifying mechanism 5, the second air suction pipeline 71 and the first air suction pipeline 8 in sequence, so that the mutual interference of the medicine in the medicine mixing chamber and the conveyed air-oxygen mixed gas is avoided, and the influence of residual liquid drops on the inner wall of the medicine mixing chamber on the conveying of the air-oxygen mixed gas is avoided. When the medicine mixing cavity is communicated with the first air suction pipeline 8, the medicine conveying channel is opened, and the air-oxygen mixed gas and the medicine are mixed in the medicine mixing cavity and then conveyed to the breathing mask 1 through the first air suction pipeline 8. The medicine and the air-oxygen mixed gas are collected in the medicine mixing cavity and then are conveyed through the first air suction pipeline 8, compared with the condition that the conveyed medicine is directly collected in the air suction pipeline, the medicine conveying channel and the air-oxygen mixed gas are not interfered with each other in conveying, and the condition that liquid drops condensed at the collection position of the air-oxygen mixed gas and the medicine influence the conveying of subsequent gas is avoided. Moreover, the drug recovery pipeline 75 is arranged in the invention, so that liquid drops condensed at the convergence part of the air-oxygen mixed gas and the drugs flow back to the drug administration mechanism 6 through the drug recovery pipeline 75 for recycling, thereby avoiding drug waste and being beneficial to controlling the drug administration time and the drug dosage.
In the present embodiment, the second suction duct 71 is arranged coaxially with the first suction duct 8. Preferably, the second end of the second air suction pipe 71 is tapered, and the tapered surface of the second end of the second air suction pipe 71 is coplanar with the inclined stop surface 721, so that the port of the second end of the second air suction pipe 71 can completely enter the first air suction pipe 8, which is beneficial to better isolating the first air suction pipe 8 from the medicine mixing chamber. Preferably, the inner diameter of the first suction duct 8 is equal to the inner diameter of the second suction duct 71, and the inner diameter of the second end of the second suction duct 71 is gradually reduced from the second suction duct 71 toward the first suction duct 8. In other embodiments, the inclined angle of the stopper inclined surface 721 may be larger than the inclined angle of the tapered surface of the second end of the second air suction duct 71.
Further, the first end of the second sleeve 73 is tapered, the tapered large-caliber end is close to the wall of the second sleeve 73, the tapered small-caliber end is connected with the first air suction pipe 8, and the inclination angle of the tapered surface of the first end of the second sleeve 73 is greater than or equal to the inclination angle of the stop inclined surface 721. Preferably, the inclination angle of the tapered surface of the first end of the second sleeve 73 is equal to the inclination angle of the stop inclined surface 721, and is equal to the inclination angle of the tapered surface of the second end of the second air suction pipe 71, so that the second end of the second air suction pipe 71 can completely enter the first air suction pipe 8, and when the second end of the second air suction pipe 71 completely enters the first air suction pipe 8, the tapered surface of the first end of the second sleeve 73 completely fits the stop inclined surface 721, which is beneficial to better sealing the medicine mixing cavity and avoiding the residual medicine from entering the first air suction pipe 8. The first end of the second sleeve 73 is tapered, the tapered surface of the second sleeve 73 and the inclined stop surface 721 form an inclined drug delivery channel, and the drug delivery channel is inclined towards the first air suction pipe 8, so that drug delivery is facilitated, and the drug and the air-oxygen mixed gas output through the second air suction pipe 71 are fully mixed.
Preferably, the drug recycling pipe 75 is connected to a connection portion between a tapered surface of the first end of the second sleeve 73 and a wall of the second sleeve 73, so that the drug recycling pipe 75 is connected to a lowest position of the tapered surface, and liquid drops formed by condensation after the drug is mixed with the air-oxygen mixed gas conveniently flow downwards along the tapered surface to the drug recycling pipe 75.
Further, a liquid collecting pipe 751 and a control valve 752 are arranged on the drug recovery pipeline 75, the control valve 752 is arranged between the liquid collecting pipe 751 and the drug administration mechanism 6, the liquid collecting pipe 751 is used for collecting residual liquid drops, and the control valve 752 is used for controlling the connection and disconnection between the liquid collecting pipe 751 and the drug administration mechanism 6. Further, a liquid level sensor is arranged in the liquid collecting pipe 751, the liquid level sensor and the control valve 752 are in electrical signal connection with the same controller, the controller is represented by a first controller, the liquid level sensor is used for monitoring the liquid level in the liquid collecting pipe 751 and transmitting a liquid level signal to the first controller, the first controller controls the on-off of the control valve 752 according to the liquid level signal, when the liquid level in the liquid collecting pipe 751 reaches a preset threshold value, the control valve 752 is opened, the liquid in the liquid collecting pipe 751 is transmitted to the dosing mechanism 6, more liquid is prevented from accumulating in the liquid collecting pipe 751, and the control valve 752 is prevented from being opened too frequently.
In this embodiment, a third sleeve is sleeved on the outer peripheral side of the second air suction pipe 71, the third sleeve is connected between the first sleeve 72 and the humidifying mechanism 5, a slide rail is arranged on the third sleeve, and the second end of the second sleeve 73 is slidably connected to the third sleeve.
It should be pointed out that, the gliding mode of driving motor drive second sleeve 73 has the multiple, in this embodiment, the tip of second sleeve 73 can set up the connecting plate, set up the screw hole on the connecting plate, the screw hole internal thread is equipped with the pivot, the pivot is connected with driving motor's output shaft transmission, when driving motor's output shaft rotated, drive the synchronous rotation of pivot, in the time of the pivot pivoted, drive the connecting plate for rotating horizontal migration, the connecting plate drives second sleeve 73 horizontal migration, be close to or keep away from humidification mechanism 5, the moving direction of second sleeve 73 is controlled through driving motor's positive and negative rotation.
It should be noted that in the present embodiment, the drug inlet conduit 74 and the drug recovery conduit 75 are both flexible tubes, so as to avoid interference with the sliding of the second sleeve 73.
In this embodiment, the air-oxygen mixing mechanism 4 includes a mixing tank 41, the mixing tank 41 is provided with an oxygen inlet 411, an air inlet 412 and a mixed gas outlet 413, the oxygen inlet 411, the air inlet 412 and the mixed gas outlet 413 are all arranged on the side wall of the mixing tank 41, the oxygen inlet 411 is connected with a first air inlet pipe, the air inlet 412 is connected with a second air inlet pipe, the first air inlet pipe and the second air inlet pipe are vertically arranged, so that gas entering through the first air inlet pipe is prevented from being sprayed into the second air inlet pipe. Further, preferably, the central axis of the first air inlet pipe and the central axis of the second air inlet pipe are on the same horizontal plane, so that the air flow direction of air inlet in the first air inlet pipe is perpendicular to the air flow direction of air inlet in the second air inlet pipe in the positive direction, and oxygen entering the first air inlet pipe collides with air entering the second air inlet pipe in an air flow manner, thereby being beneficial to the sufficient mixing of the oxygen and the air.
Further, a filter plate 42 is arranged in the mixing tank 41, a plurality of filter holes 421 are uniformly distributed on the filter plate 42, the mixed gas outlet 413 is arranged above the filter plate 42, and the oxygen inlet 411 and the air inlet 412 are arranged below the filter plate 42. An air-oxygen mixing chamber is formed below the filter plate 42, so that air and oxygen are fully mixed in the air-oxygen mixing chamber, enter the upper part of the filter plate 42 through the filter holes 421 and are discharged through the mixed gas outlet 413.
In this embodiment, air intlet still is connected with the third intake pipe, and the inner wall at the blending tank is connected to the one end of third intake pipe, and the other end of third intake pipe extends to the center of blending tank by the inner wall of blending tank, and a plurality of air vents have been arranged to the pipe wall of third intake pipe. Air from the second intake pipe entering gets into in the third intake pipe, gets into the inside of blending tank through a plurality of air vents to make the air of entering wider in the blending tank distribution range, more be favorable to fully mixing with the oxygen that gets into. Furthermore, a plurality of fan blade groups are arranged on the pipe wall of the third air inlet pipe at intervals along the axial direction, each fan blade group is provided with a plurality of fan blades which are uniformly distributed along the circumferential direction of the pipe wall, the end part of the third air inlet pipe is rotationally connected with the inner wall of the mixing tank, and when the third air inlet pipe rotates, the plurality of fan blade groups are driven to synchronously rotate to accelerate the mixing of air and oxygen in the mixing tank. It should be noted that the third air inlet pipe is driven to rotate by a motor, and the driving mode of the motor is the prior art, and the detailed description of the invention is omitted.
In this embodiment, respirator 1 still is connected with exhale the pipeline, exhale the pipeline and be connected with waste gas storage jar, utilize waste gas storage tube to save the waste gas of exhalation.
In this embodiment, the breathing machine further includes a temperature and humidity control mechanism, the temperature and humidity control mechanism includes a controller, a first humidity sensor 51 arranged in the humidification mechanism 5, a temperature sensor 711 arranged in the humidification mechanism 5, and a heating plate 722 arranged on the inner wall of the first sleeve 72, wherein the first humidity sensor 51, the temperature sensor 711 and the heating plate 722 are electrically connected to the controller. Wherein the controller is represented as a second controller, the first humidity sensor 51 is used for measuring the humidity of the gas in the humidifying mechanism 5 and transmitting a humidity signal to the second controller, and the second controller controls the operation of the humidifying mechanism 5 according to the humidity signal and the required humidity; the temperature sensor 711 measures the temperature of the gas in the humidification mechanism 5 and transmits a temperature signal to the second controller, which controls the heating plate 722 according to the temperature signal and the required gas temperature. In the present embodiment, the humidifying mechanism 5 is an ultrasonic humidifier. Compared with the heating device arranged in the humidifying mechanism 5, the heating plate 722 is arranged on the inner wall of the first sleeve 72, so that on one hand, the heating plate 722 is positioned in a dry environment, scaling caused by the fact that the heating plate 722 is in water for a long time is avoided, and maintenance cost is reduced; on the other hand, utilize the hot plate 722 to heat the gas in the second pipeline 71 of breathing in, be favorable to carrying out more accurate control to the temperature of air oxygen gas mixture to, can use medicine temperature according to the patient, adjust the temperature of air oxygen gas mixture, avoid with the temperature of the air oxygen gas mixture of medicine mixture too high or low excessively.
In this embodiment, be provided with second humidity transducer in respirator 1, second humidity transducer and second controller electrical signal connection, second humidity transducer is used for monitoring the humidity in respirator 1 to provide comfortable respiratory environment for the patient. The second controller controls the humidifying mechanism according to humidity signals monitored by the first humidity sensor and the second humidity sensor. Specifically, when a first humidity value obtained by monitoring by the first humidity sensor is larger than a second humidity value obtained by monitoring by the second humidity sensor, and a difference value between the first humidity value and the second humidity value is larger than a preset threshold value, the second controller controls the humidifying mechanism to lower a humidity gear, and lowers the humidity in the humidifying mechanism until the difference value between the first humidity value and the second humidity value is smaller than the preset threshold value; and when the first humidity value is smaller than the second humidity value and the difference value is larger than a preset threshold value, controlling the humidification mechanism to increase the humidity gear and enhance the humidity in the humidification mechanism until the difference value between the first humidity value and the second humidity value is smaller than the preset threshold value.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A breathing machine is characterized by comprising a breathing mask, an air source, a machine body, an air-oxygen mixing mechanism, a humidifying mechanism, a drug delivery mechanism and a drug mixing mechanism, wherein the air source, the air-oxygen mixing mechanism and the humidifying mechanism are arranged in the machine body and are sequentially connected, the humidifying mechanism and the drug delivery mechanism are both connected with the drug mixing mechanism, and a first air suction pipeline is connected between the drug mixing mechanism and the breathing mask;
the medicine mixing mechanism comprises a second air suction pipeline, a first sleeve, a second sleeve, a medicine inlet pipeline, a medicine recovery pipeline and a driving motor, wherein the first end of the second air suction pipeline is connected to the air outlet of the humidifying mechanism, the first sleeve is coaxially sleeved on the second air suction pipeline and is close to the second end, and the end part of the first sleeve is provided with a stopping inclined surface; the second sleeve is coaxially arranged on the outer peripheral side of the first sleeve, a first end of the second sleeve is connected with the first air suction pipeline, a second end of the second sleeve is connected onto the second air suction pipeline in a sliding mode, and the driving motor is in transmission connection with the second sleeve; a medicine mixing cavity is formed between the first sleeve and the second sleeve, and the medicine inlet pipeline and the medicine recovery pipeline are respectively connected between the second sleeve and the medicine feeding mechanism;
when air is sucked, the second end of the second air suction pipeline is inserted into the first air suction pipeline, the end part of the first air suction pipeline is abutted against the stopping inclined surface, and the medicine mixing cavity is closed; when medicine is fed, the driving motor drives the second sleeve to slide, the second end of the first air suction pipeline is separated from the second end of the second air suction pipeline, and the medicine mixing cavity is communicated with the first air suction pipeline.
2. The ventilator of claim 1 wherein the second end of the second inspiratory conduit is tapered, the tapered surface of the second end of the second inspiratory conduit being disposed coplanar with the stop inclined surface.
3. The ventilator of claim 1 or 2, wherein the first end of the second sleeve is tapered, and wherein the angle of inclination of the tapered surface of the first end of the second sleeve is greater than or equal to the angle of inclination of the stop inclined surface.
4. The ventilator of claim 3, wherein the drug recovery conduit is connected at a junction between the tapered surface of the first end of the second sleeve and the wall of the second sleeve.
5. The ventilator of claim 1, wherein the drug recovery conduit is provided with a liquid collection tube and a control valve, the control valve being disposed between the liquid collection tube and the administration mechanism.
6. The respirator of claim 1, wherein the air-oxygen mixing mechanism comprises a mixing tank, the mixing tank is provided with an oxygen inlet, an air inlet and a mixed gas outlet, the oxygen inlet, the air inlet and the mixed gas outlet are all arranged on the side wall of the mixing tank, the oxygen inlet is connected with a first air inlet pipe, the air inlet is connected with a second air inlet pipe, and the first air inlet pipe and the second air inlet pipe are vertically arranged.
7. The respirator of claim 6, wherein a filter plate is arranged in the mixing tank, a plurality of filter holes are uniformly distributed in the filter plate, the mixed gas outlet is arranged above the filter plate, and the oxygen inlet and the air inlet are both arranged below the filter plate.
8. The respirator of claim 1, further comprising a temperature and humidity control mechanism, wherein the temperature and humidity control mechanism comprises a controller, a first humidity sensor arranged in the humidification mechanism, a temperature sensor arranged in the humidification mechanism, and a heating plate arranged on the inner wall of the first sleeve, and the first humidity sensor, the temperature sensor and the heating plate are all electrically connected with the controller.
9. The ventilator of claim 1 wherein an exhalation conduit is further coupled to the respiratory mask, the exhalation conduit being coupled to an exhaust gas storage tank.
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| CN114177467B (en) | 2023-06-27 |
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