CN109966619B - Device for controlling oxygen output concentration - Google Patents
Device for controlling oxygen output concentration Download PDFInfo
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- CN109966619B CN109966619B CN201910333281.5A CN201910333281A CN109966619B CN 109966619 B CN109966619 B CN 109966619B CN 201910333281 A CN201910333281 A CN 201910333281A CN 109966619 B CN109966619 B CN 109966619B
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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
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
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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
- A61M16/122—Preparation of respiratory gases or vapours by mixing different gases with dilution
- A61M16/125—Diluting primary gas with ambient 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
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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
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
- A61M2016/102—Measuring a parameter of the content of the delivered gas
- A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
- A61M2205/3334—Measuring or controlling the flow rate
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Abstract
The invention provides a device for controlling oxygen output concentration, which comprises an air source mechanism, a control mechanism and a control mechanism, wherein the air source mechanism is used for providing air; an oxygen source mechanism for providing oxygen; the air-oxygen mixing mechanism is communicated with the air source mechanism and the oxygen source mechanism, is used for mixing air and oxygen and simultaneously outputs the mixed air and oxygen; the oxygen concentration control device is used for solving the problem that the oxygen concentration cannot be accurately controlled by the conventional oxygen inhalation related equipment.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a device for controlling oxygen output concentration.
Background
Oxygen, as a special medical product, is related to life or health safety of human body, and the use thereof should have strict technical standards. The lagging oxygen inhalation treatment technical mode leads a clinician to be unable to determine the concentration and the flow of the treatment oxygen inhaled by a patient according to the actual condition of the patient, the negative effects are not satisfactory if the negative effects are small, the patient is damaged by overoxidation if the negative effects are serious, and the potential factors causing harm to the mentally unclear patients, especially to newborn and infant patients are larger. The domestic news media report for many times, and the serious consequence of binocular blindness or cerebral palsy caused by excessive clinical oxygen inhalation of infant patients causes doctor-patient disputes with great social influence. Animal experiments and clinical researches preliminarily prove that the accurate oxygen inhalation has better treatment effect and greatly reduces the potential harm to patients when the accurate oxygen inhalation is used for the oxygen inhalation treatment of suffocating or unconscious patients.
Oxygen is widely applied in clinical medical treatment, has the largest dosage in medical gas, is a key substance of human metabolic activity, and can be used for treatment and first aid of patients with oxygen deficiency, oxygen supplementation in oxygen deficiency environment and health care and fatigue recovery of normal people. However, the most widely and generally used oxygen inhalation therapy in clinical first aid, supportive therapy and even home health care still adopts the traditional backward technology, and except for the current oxygen inhalation therapy which uses a high-grade breathing machine to achieve oxygen inhalation concentration control in severe and conditional conditions, the rest is the simplest high-pressure oxygen source, and the patient inhales oxygen by a humidifying bottle after pressure reduction. This method has the disadvantage that the concentration of oxygen inhaled by the patient cannot be controlled quantitatively by the medical staff.
The currently used oxygen inhalation technology is not suitable for clinical requirements, and the difference of subjective judgment or operation scale control of medical staff and the difference of the matching degree of patients can cause the actual oxygen concentration in the gas inhaled by the patients to have larger deviation with the expected value of doctors.
Medically defining: the oxygen absorption concentration (especially the oxygen concentration in alveolus) is lower than 30%; the oxygen absorption concentration is between 30 and 50 percent and is medium concentration; the oxygen absorption concentration is high at more than 50%. The concentration of the inhaled oxygen is more than 50 percent, and oxygen poisoning is possible after 2 days; the concentration of the inhaled oxygen is higher than 80%, and oxygen poisoning is possible within 12 hours. The reasonable oxygen uptake concentration, which is also the concentration most consistent with oxygen exchange in alveoli, is 24% -33%. Oxygen poisoning refers to a plurality of problems of pulmonary alveolar surfactant reduction caused by high-concentration oxygen inhalation, pulmonary alveolar fluid seepage, pulmonary edema, dizziness, pale complexion, accelerated heartbeat and the like. More seriously, oxygen poisoning is not easy to be detected at that time, clinical symptoms often appear after 2-3 days, and time is easy to delay when rescue is carried out at the time.
The respirator can realize the function of accurately controlling the oxygen concentration, and can provide various breathing modes, various ventilation modes and trigger modes for patients to select, and the high-level performance of the various functional modes necessarily causes the cost of the respirator to be extremely expensive, tens of thousands of yuan is often, and the respirator is difficult to be widely used in large area.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for controlling the output concentration of oxygen, which is used for solving the problem that the oxygen concentration cannot be accurately controlled by the conventional oxygen inhalation related equipment.
The invention provides a device for controlling oxygen output concentration, which comprises an air source mechanism, a control mechanism and a control mechanism, wherein the air source mechanism is used for providing air;
an oxygen source mechanism for providing oxygen;
the air-oxygen mixing mechanism is communicated with the air source mechanism and the oxygen source mechanism, is used for mixing air and oxygen and simultaneously outputs the mixed air and oxygen;
the air source mechanism is an air compressor, the air compressor is communicated with the air-oxygen mixing mechanism through a first air pipe, the first air pipe is sequentially provided with an air storage tank, a pressure regulating valve, a one-way valve and a flow controller along the air conveying direction of the first air pipe, the oxygen source mechanism is an oxygen generator, the oxygen generator is communicated with the air-oxygen mixing mechanism through a second air pipe, and the second air pipe is provided with another flow controller.
In the above technical solution, the present invention may be further modified as follows.
The preferable technical scheme is characterized in that: and the air outlet end of the air-oxygen mixing mechanism is communicated with the oxygen concentration detection mechanism through a third air delivery pipe.
The preferable technical scheme is characterized in that: the oxygen concentration detection mechanism comprises an oxygen concentration sensor, a controller and a display screen, wherein the controller is respectively electrically connected with the oxygen concentration sensor and the display screen.
The preferable technical scheme is characterized in that: and the air outlet end of the oxygen concentration detection mechanism is connected with a humidifier.
The preferable technical scheme is characterized in that: the air-oxygen mixing mechanism comprises a first main box body, a first air baffle plate and a second air baffle plate, the first main box body comprises a bottom shell and a cover plate, the cover plate is arranged on the bottom shell in a sealing manner, a transparent observation window is arranged on the cover plate, the first air baffle plate and the second air baffle plate are both arranged in the first main box body, the first air baffle plate and the second air baffle plate are both C-shaped plates, a certain spacing distance is arranged between the first air baffle plate and the second air baffle plate, an air inlet is arranged on the first air baffle plate, an air outlet is arranged on the second air baffle plate, the air inlet and the air outlet are arranged in a staggered manner, the rear end part of the first air baffle plate is bent towards the center of the first air baffle plate and is close to the second air baffle plate to form a first air flow extrusion port, the front end part of the second air baffle plate is bent towards the center of the second air baffle plate and is close to the first air baffle plate to form a second air flow extrusion port, meanwhile, the rear end part of the first air baffle and the front end part of the second air baffle enclose to form an airflow expansion area, and the airflow expansion area is positioned between the first airflow extrusion opening and the second airflow extrusion opening; the rear end part of the first air baffle is provided with a first bending part, the bending direction of the first bending part is matched with the front end part of the second air baffle, and the first bending part and the front end part of the second air baffle form a first airflow extrusion channel; the front end part of the second air baffle is provided with a second bent part, the bending direction of the second bent part is matched with the rear end part of the first air baffle, and the second bent part and the rear end part of the first air baffle form a second air flow extrusion channel.
The preferable technical scheme is characterized in that: the improved air purifier is characterized in that a rotating shaft is horizontally arranged in the bottom shell, one end of the rotating shaft extends out of the bottom shell, a rotating motor connected with the rotating shaft in a driving mode is fixedly arranged outside the bottom shell, the rotating motor is electrically connected with the controller, a plurality of net layers are annularly arranged on the rotating shaft at equal intervals, the inner portion of each net layer is a cavity structure, the left side and the right side of each net layer are hollow, a filter screen is embedded in each net layer, and the filter screen is located in the air outlet direction of the second air baffle.
The preferable technical scheme is characterized in that: the left and right side ends of the first main box body are symmetrically provided with first sub-box bodies positioned in the air inlet direction of the first air baffle plate, the left and right side ends of the first main box body are symmetrically provided with first openings, the first opening is sealed by an elastic rubber diaphragm, a plurality of air holes are arranged on the rubber diaphragm, each air hole is provided with a valve plate which can only be opened towards the inside of the first main box body, the upper end of the first sub-box body positioned at the left end of the first main box body is provided with a second opening, a fan is fixedly arranged on the second opening, a small oxygen tank communicated with the first primary box body is fixedly arranged at the upper end of the first primary box body positioned at the right side end of the first main box body, an electric air valve is arranged at the air outlet end of the small oxygen tank, electric push rods are fixedly arranged in the two first boxes, the telescopic end of the electric push rod is provided with a contact inductive switch, and the electric push rod is also provided with a travel switch; the upper end of first main box body is equipped with the second time box body, be provided with battery and outage detection switch in the second time box body, the controller respectively with battery, outage detection switch, electric putter, fan and electric air valve electric connection.
The preferable technical scheme is characterized in that: the flow controller comprises a second main box body, an adjusting rod, a limiting nut and a flow meter, wherein an airflow channel which is L-shaped penetrates through the second main box body, the limiting nut is fixedly arranged on the side wall of the second main box body, an external thread which is matched with the internal thread of the limiting nut is arranged on the rod body of the adjusting rod, the length of the rod diameter of one end, which is positioned in the second main box body, of the adjusting rod is gradually reduced to form a frustum part, the frustum part can be inserted into the airflow channel and the bent end for plugging the airflow channel, the flow meter is arranged on the second main box body, and the induction end of the flow meter extends into the airflow channel.
The preferable technical scheme is characterized in that: the side of the second main box body is provided with a third box body, a through screw motor is arranged in the third box body, the output end of the through screw motor is fixedly connected with one end of the adjusting rod, which is positioned outside the third main box body, and the through screw motor is electrically connected with the controller.
The preferable technical scheme is characterized in that: an air cut-off detection switch is arranged in the third air delivery pipe and comprises a pair of foils and a pair of springs, the roots of the foils are fixedly arranged on the inner wall of the third gas transmission pipe, each foil is obliquely arranged in the third gas transmission pipe, the free ends of the two foils face to the same end of the third gas transmission pipe, the single foil is also connected with the inner wall of the third gas transmission pipe through the spring, the foils are electrically connected with a comparator, and the comparator is electrically connected with a controller, when the third gas pipe does not flow out, the capacitance between the pair of foils is recorded as an initial value, when the third gas pipe flows out, the capacitance between the pair of foils is not equal to the initial value, and the comparator is used for controlling the fan and the electric gas valve to be opened when the measured capacitance value is judged to be equal to the capacitance when the gas in the third gas pipe does not flow by the comparator.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the air source mechanism, the oxygen source mechanism and the air-oxygen mixing mechanism are arranged, air is input through the air source mechanism, oxygen is input through the oxygen source mechanism, and the air and the oxygen are mixed in the air-oxygen mixing mechanism, so that the required oxygen concentration (21-100%) can be provided for a patient, the rescue efficiency of the patient is ensured, the whole device has low cost and is convenient to use, and the device is suitable for large-area popularization in primary hospitals.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an apparatus for controlling an output oxygen concentration according to an embodiment of the present invention.
Fig. 2 is a schematic view of the internal structure of the air-oxygen mixing mechanism according to the embodiment of the present invention.
Fig. 3 is an external structural view of the air-oxygen mixing mechanism according to the embodiment of the present invention.
Fig. 4 is a schematic structural view of a rubber valve according to an embodiment of the present invention.
Fig. 5 is a schematic view of the internal structure of the flow controller according to the embodiment of the present invention.
Fig. 6 is a schematic structural view of an oxygen concentration detection mechanism according to an embodiment of the present invention.
Fig. 7 is a schematic view showing the installation of the air cut-off detection switch according to the embodiment of the present invention.
Fig. 8 is a schematic view of the rotation of a foil according to an embodiment of the invention.
Fig. 9 is a partially enlarged schematic view of fig. 8.
FIG. 10 is a schematic diagram of the internal circuit connections of an embodiment of the present invention.
In the figure, the respective symbols have the following meanings:
1. an air source mechanism; 2. an oxygen source mechanism; 21. a first gas delivery pipe; 3. an air-oxygen mixing mechanism; 31. a first main box body; 311. a bottom case; 312. a cover plate; 313. a rotating shaft; 314. a mesh layer; 315. filtering with a screen; 316. rotating the motor; 32. a first air baffle; 321. a first bent portion; 33. a second gas baffle; 331. a second bent portion; 34. a first cartridge body; 341. a rubber flap; 342. a fan; 343. a small oxygen tank; 3431. an electric air valve; 344. an electric push rod; 3441. an inductive switch; 3442. a travel switch; 345. a storage battery; 346. a power-off detection switch; 347. a second box body; 4. a first gas delivery pipe; 41. a flow controller; 411. a second box body; 412. adjusting a rod; 413. a limit nut; 414. a flow meter; 415. an air flow channel; 416. a third box body; 417. a through type screw motor; 42. a gas storage tank; 43. a pressure regulating valve; 44. a one-way valve; 5. a second gas delivery pipe; 6. a third gas delivery pipe; 61. a gas cut-off detection switch; 611. a foil; 612. a comparator; 7. an oxygen concentration detection mechanism; 71. an oxygen concentration sensor; 72. a controller; 73. a display screen; 8. a humidifier.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following examples are illustrated and described in detail as follows:
referring to fig. 1 to 10, the present embodiment provides an apparatus for controlling oxygen output concentration, including an air source mechanism 1 for providing air;
an oxygen source mechanism 2 for supplying oxygen;
and the air-oxygen mixing mechanism 3 is used for being communicated with the air source mechanism 1 and the oxygen source mechanism 2, mixing the air and the oxygen and outputting the mixed air and oxygen.
This embodiment is through setting up air source mechanism 1, oxygen source mechanism 2 and empty oxygen mixing mechanism 3, through 1 input air of air source mechanism, through 2 input oxygen of oxygen source mechanism, air and oxygen mix in empty oxygen mixing mechanism 3 again, and this embodiment can provide required oxygen concentration (21-100%) for the patient, has guaranteed patient's rescue efficiency to whole device cost is lower, and the use is convenient, is fit for promoting in the primary hospital large tracts of land.
Referring to fig. 1, the air source mechanism 1 is an air compressor, the oxygen source mechanism 2 is an oxygen generator, the air compressor is communicated with the air-oxygen mixing mechanism 3 through a first air pipe 4, the oxygen generator is communicated with the air-oxygen mixing mechanism 3 through a second air pipe 5, the first air pipe 4 is sequentially provided with an air storage tank 42, a pressure regulating valve 43, a one-way valve 44 and a flow controller 41 along the air conveying direction of the first air pipe 4, and the second air pipe 5 is provided with another flow controller 41.
The flow controller 41 provided in this embodiment is used for controlling and adjusting the flow of air and oxygen, the air storage tank 42 is used for collecting air from the air compressor, the pressure regulating valve 43 is used for regulating the air pressure in the first air delivery pipe 4, and the check valve 44 is used for preventing air from being sucked backwards and damaging the air compressor.
Referring to fig. 1, the air outlet end of the air-oxygen mixing mechanism 3 is communicated with the oxygen concentration detection mechanism 7 through a third air pipe 6.
The oxygen concentration detection means 7 is provided for detecting the oxygen concentration from the air-oxygen mixing means 3.
Referring to fig. 1 and 6, the oxygen concentration detecting mechanism 7 includes an oxygen concentration sensor 71, a controller 72 and a display 73, and the controller 72 is electrically connected to the oxygen concentration sensor 71 and the display 73, respectively.
The oxygen concentration sensor 71 is provided for detecting the oxygen concentration in the oxygen concentration detection mechanism 7, and transmits an electric signal to the controller 72, and the controller 72 displays the oxygen concentration on the display screen 73.
Referring to fig. 1, the outlet end of the oxygen concentration detecting mechanism 7 is connected to a humidifier 8.
The humidifier 8 that sets up is used for carrying out the humidification heating to mist, avoids in cold time, and too much cold air of patient's incoming call, wherein the end connection of giving vent to anger of the inlet end oxygen concentration detection mechanism 7 of humidifier 8, and humidifier 8 can add water to humidifier 8 with the external water tank.
Referring to fig. 2, the air-oxygen mixing mechanism 3 includes a first main box 31, a first air baffle 32 and a second air baffle 33, the first main box 31 includes a bottom shell 311 and a cover plate 312, the cover plate 312 is hermetically disposed on the bottom shell 311, a transparent observation window is disposed on the cover plate 312, the first air baffle 32 and the second air baffle 33 are both disposed in the first main box 31, the first air baffle 32 and the second air baffle 33 are both C-shaped, a certain distance is disposed between the first air baffle 32 and the second air baffle 33, an air inlet is disposed on the first air baffle 32, an air outlet is disposed on the second air baffle 33, the air inlet and the air outlet are staggered and arranged, a rear end of the first air baffle 32 is bent toward a center of the first air baffle 32 and is close to the first air baffle 33 to form a first air flow extrusion port, a front end of the second air baffle 33 is bent toward a center of the second air baffle 33 and is close to the first air baffle 33 to form a second air flow extrusion port, meanwhile, the rear end part of the first air baffle 32 and the front end part of the second air baffle 33 enclose to form an airflow expansion area, and the airflow expansion area is positioned between the first airflow extrusion opening and the second airflow extrusion opening; a first bent part 321 is arranged at the rear end of the first air baffle 32, the bending direction of the first bent part 321 is matched with the front end of the second air baffle 33, and a first airflow extrusion channel is formed by the first bent part 321 and the front end of the second air baffle 33; the front end of the second air baffle 33 is provided with a second bending part 331, the bending direction of the second bending part 331 is matched with the rear end of the first air baffle 32, a second air flow extrusion channel is formed by the second bending part 331 and the rear end of the first air baffle 32, a rotating shaft 313 is horizontally arranged in the bottom shell 311, one end of the rotating shaft 313 extends out of the bottom shell 311, a rotating motor 316 in driving connection with the rotating shaft 313 is fixedly arranged outside the bottom shell 311, the rotating motor 316 is electrically connected with the controller 72, a plurality of net layers 314 are annularly arranged on the rotating shaft 313 at equal intervals, the inside of each net layer 314 is hollow and is hollow on the left and right sides, a filter screen 315 is embedded in each net layer 314, and the filter screen 315 is located in the air outlet direction of the second air baffle 33.
Medical personnel start the air compressor and the oxygen generator, the air compressor inputs compressed air into the air-oxygen mixing mechanism 3 through the first air pipe 4, the oxygen generator inputs oxygen into the air-oxygen mixing mechanism 3 through the second air pipe 5, in order to ensure the sufficient mixing of the air and the oxygen, after the oxygen and the air are input into the air-oxygen mixing mechanism 3, the oxygen and the air can be more contacted with the first air baffle plate 32 and the second air baffle plate 33 because the widths of the air inlet, the first air flow extrusion port, the second air flow extrusion port and the air outlet are narrower when the oxygen and the air are input into the first air flow extrusion port → the second air flow extrusion port → the air outlet, and in addition, the intangible oxygen and the air are extruded into a shaped thin plate invisibly in each extrusion; the flow velocity of the water is obviously accelerated as wide water flow passes through a relatively narrow part during each extrusion; each time the first air baffle 32 or the second air baffle 33 squeezes oxygen and air, a relatively open space is left; when the extruded thin plate-shaped oxygen and air with fast and powerful flow rates enter the open space, like a wane torrent injected into the open pond, vortexes are inevitably formed to drive water in the whole pond to rotate rapidly, so that the oxygen and the air are fully mixed, and the oxygen concentration can be adjusted according to the state of an illness (the oxygen concentration is between 21 and 100 percent). Through setting up the observation window, the observation window is used for the user to let medical personnel observe the operating condition of the inside of box body. The controller 72 turns on the rotation motor 316, which drives the filter 315 to rotate toward the air outlet direction of the second air baffle 33, so as to accelerate the air circulation and make the air contact with the filter 315 in a larger area.
Referring to fig. 2 and 3, the left and right sides of the first main box 31 are symmetrically provided with first sub-box 34 located in the air inlet direction of the first air baffle 32, the left and right sides of the first main box 31 are symmetrically provided with first openings, the first openings are sealed by an elastic rubber diaphragm 341, the rubber diaphragm 341 is provided with a plurality of air holes, each air hole is provided with a valve plate capable of opening only towards the inside of the first main box 31, the upper end of the first sub-box 34 located at the left side of the first main box 31 is provided with a second opening, the second opening is fixedly provided with a fan 342, the upper end of the first sub-box 34 located at the right side of the first main box 31 is fixedly provided with a small oxygen tank 343 communicated with the first sub-box 34, the air outlet end of the small oxygen tank 343 is provided with an electric air valve 3431, and electric push rods 344 are fixedly provided in the two first sub-boxes 34, a contact induction switch 3441 is arranged at the telescopic end of the electric push rod 344, and a travel switch 3442 is also arranged on the electric push rod 344; the upper end of the first main box body 31 is provided with a second box body 347, a storage battery 345 and a power-off detection switch 346 are arranged in the second box body 347, and the controller 72 is respectively electrically connected with the storage battery 345, the power-off detection switch 346, the electric push rod 344, the fan 342 and the electric air valve 3431.
When oxygen and air are introduced into the first main box body 31, the rubber diaphragm 341 expands towards the outside of the first opening and enters the first box body 34, when the rubber diaphragm 341 expands to a certain size, the rubber diaphragm 341 contacts with the contact inductive switch 3441, so that the electric push rod 344 is started, the telescopic end of the electric push rod 344 extends towards the inside of the first main box body 31, the telescopic end of the electric push rod 344 contacts with the rubber diaphragm 341 and presses the rubber diaphragm 341, the compression of the air and the oxygen is realized, the oxygen inhalation effect of a patient is enhanced, and the cardiopulmonary resuscitation is ensured. The power failure detection switch 346 that sets up is used for detecting whether outage, when outage, power failure detection switch 346 gives controller 72 with outage signal transmission, controller 72 supplies power to fan 342 through battery 345, open electric pneumatic valve 3431 simultaneously, fan 342 is with leading-in to first box body 34 in with external gas, and enter into first main box body 31 through the valve block, controller 72 control simultaneously rotates motor 316 and rotates, further make air and oxygen in the first box body 34 inhaled first main box body 31 in, and mix in first main box body 31, the effectual problem of having avoided under the condition of outage, patient's oxygen deficiency.
Referring to fig. 5, the flow controller 41 includes a second main box 411, an adjusting rod 412, a limiting nut 413 and a flow meter 414, an L-shaped airflow channel 415 is formed through the second main box 411, the limiting nut 413 is fixedly disposed on a sidewall of the second main box 411, an external thread matched with an internal thread of the limiting nut 413 is disposed on a shaft of the adjusting rod 412, a tapered portion is formed at one end of the adjusting rod 412 located in the second main box 411, the diameter of the rod is gradually reduced, the tapered portion can be inserted into the airflow channel 415 and blocks a bent end of the airflow channel 415, the flow meter 414 is disposed on the second main box 411, and an induction end of the flow meter 414 extends into the airflow channel 415.
The flow rate of the flow rate controller 41 is adjusted by rotating the adjusting lever 412 so that the adjusting lever 412 rotates toward the inside of the second main case 411, the frustum portion is close to and blocks the bent end of the airflow channel 415, thereby reducing the air or oxygen output, and the medical staff can observe the flow rate through the flow meter 414.
Referring to fig. 5, a third box 416 is disposed at a side end of the second main box 411, a through screw motor 417 is disposed in the third box, an output end of the through screw motor 417 is fixedly connected to an end of the adjusting lever 412 outside the third main box 411, and the through screw motor 417 is electrically connected to the controller 72.
In order to increase the sensitivity of flow adjustment, the controller 72 is used to control the through-type screw motor 417 to rotate, and the output end of the through-type screw motor 417 further drives the adjusting rod 412 to rotate, so as to rotate the adjusting rod 412 and adjust the air or oxygen output.
Referring to fig. 7 to 10, a gas cut-off detection switch 61 is disposed in the third gas pipe 6, the gas cut-off detection switch 61 includes a pair of foils 611 and a pair of springs, the root of the foils 611 is fixedly disposed on the inner wall of the third gas pipe 6, each foil 611 is disposed in the third gas pipe 6 in an inclined manner, the free ends of the two foils 611 face the same end of the third gas pipe 6, the single foil 611 is connected to the inner wall of the third gas pipe 6 via the springs, the foils 611 are electrically connected to a comparator 612, the comparator 612 is electrically connected to the controller 72, when the third gas pipe 6 has no gas flowing out, the capacitance between the pair of foils 611 is marked as an initial value, when the third gas pipe 6 has gas flowing out, the capacitance between the pair of foils 611 is not equal to the initial value, the comparator 612 is configured to measure a capacitance value when the comparator 612 determines that the capacitance value is equal to the capacitance value when the pair of foils 611 has no gas flowing in the third gas pipe 6, at this time, the controller 72 controls the fan 342 and the electric gas valve 3431 to be opened.
When the gas in the third gas pipe 6 flows, the gas pressure in the third gas pipe 6 decreases, and particularly, the gas pressure decreases as the flow rate at a position closer to the center of the third gas pipe 6 increases, so that when the gas flows, the pair of foils 611 approach each other while the spring is placed in tension, and the capacitance between the two changes. This can be used to monitor whether there is a flow of gas in the third gas line 6. When the third gas pipe 6 is cut off, the spring pulls the foils 611 to return to the original position, the capacitance between the foils 611 is equal to the capacitance of the pair of foils 611 when the gas in the third gas pipe 6 does not flow, the foils 611 are electrically connected with the comparator 612, the comparator 612 is electrically connected with the controller 72, the comparator 612 is used for indicating that the whole device is in a gas cut-off state when the measured capacitance value is judged by the comparator 612 to be equal to the capacitance of the pair of foils 611 when the gas in the third gas pipe 6 does not flow, and at the moment, the controller 72 controls the fan 342 and the electric air valve 3431 to be opened to supply oxygen to the patient.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. An apparatus for controlling oxygen output concentration, comprising: comprises an air source mechanism for providing air;
an oxygen source mechanism for providing oxygen;
the air-oxygen mixing mechanism is communicated with the air source mechanism and the oxygen source mechanism, is used for mixing air and oxygen and simultaneously outputs the mixed air and oxygen;
the air source mechanism is an air compressor, the air compressor is communicated with the air-oxygen mixing mechanism through a first air pipe, the first air pipe is sequentially provided with an air storage tank, a pressure regulating valve, a one-way valve and a flow controller along the air conveying direction of the first air pipe, the oxygen source mechanism is an oxygen generator, the oxygen generator is communicated with the air-oxygen mixing mechanism through a second air pipe, and the second air pipe is provided with another flow controller;
the air outlet end of the air-oxygen mixing mechanism is communicated with the oxygen concentration detection mechanism through a third air delivery pipe;
the oxygen concentration detection mechanism comprises an oxygen concentration sensor, a controller and a display screen, wherein the controller is respectively electrically connected with the oxygen concentration sensor and the display screen;
the air outlet end of the oxygen concentration detection mechanism is connected with a humidifier;
the air-oxygen mixing mechanism comprises a first main box body, a first air baffle plate and a second air baffle plate, the first main box body comprises a bottom shell and a cover plate, the cover plate is arranged on the bottom shell in a sealing manner, a transparent observation window is arranged on the cover plate, the first air baffle plate and the second air baffle plate are both arranged in the first main box body, the first air baffle plate and the second air baffle plate are both C-shaped plates, a certain spacing distance is arranged between the first air baffle plate and the second air baffle plate, an air inlet is arranged on the first air baffle plate, an air outlet is arranged on the second air baffle plate, the air inlet and the air outlet are arranged in a staggered manner, the rear end part of the first air baffle plate is bent towards the center of the first air baffle plate and is close to the second air baffle plate to form a first air flow extrusion port, the front end part of the second air baffle plate is bent towards the center of the second air baffle plate and is close to the first air baffle plate to form a second air flow extrusion port, meanwhile, the rear end part of the first air baffle and the front end part of the second air baffle enclose to form an airflow expansion area, and the airflow expansion area is positioned between the first airflow extrusion opening and the second airflow extrusion opening; the rear end part of the first air baffle is provided with a first bending part, the bending direction of the first bending part is matched with the front end part of the second air baffle, and the first bending part and the front end part of the second air baffle form a first airflow extrusion channel; the front end part of the second air baffle is provided with a second bent part, the bending direction of the second bent part is matched with the rear end part of the first air baffle, and the second bent part and the rear end part of the first air baffle form a second air flow extrusion channel.
2. The apparatus of claim 1, wherein the oxygen output concentration is controlled by: the improved air purifier is characterized in that a rotating shaft is horizontally arranged in the bottom shell, one end of the rotating shaft extends out of the bottom shell, a rotating motor connected with the rotating shaft in a driving mode is fixedly arranged outside the bottom shell, the rotating motor is electrically connected with the controller, a plurality of net layers are annularly arranged on the rotating shaft at equal intervals, the inner portion of each net layer is a cavity structure, the left side and the right side of each net layer are hollow, a filter screen is embedded in each net layer, and the filter screen is located in the air outlet direction of the second air baffle.
3. The apparatus of claim 2, wherein the oxygen output concentration is controlled by: the left and right side ends of the first main box body are symmetrically provided with first sub-box bodies positioned in the air inlet direction of the first air baffle plate, the left and right side ends of the first main box body are symmetrically provided with first openings, the first opening is sealed by an elastic rubber diaphragm, a plurality of air holes are arranged on the rubber diaphragm, each air hole is provided with a valve plate which can only be opened towards the inside of the first main box body, the upper end of the first sub-box body positioned at the left end of the first main box body is provided with a second opening, a fan is fixedly arranged on the second opening, a small oxygen tank communicated with the first primary box body is fixedly arranged at the upper end of the first primary box body positioned at the right side end of the first main box body, an electric air valve is arranged at the air outlet end of the small oxygen tank, electric push rods are fixedly arranged in the two first boxes, the telescopic end of the electric push rod is provided with a contact inductive switch, and the electric push rod is also provided with a travel switch; the upper end of first main box body is equipped with the second time box body, be provided with battery and outage detection switch in the second time box body, the controller respectively with battery, outage detection switch, electric putter, fan and electric air valve electric connection.
4. An apparatus for controlling output concentration of oxygen as defined in claim 3, wherein: the flow controller comprises a second main box body, an adjusting rod, a limiting nut and a flow meter, wherein an airflow channel which is L-shaped penetrates through the second main box body, the limiting nut is fixedly arranged on the side wall of the second main box body, an external thread which is matched with the internal thread of the limiting nut is arranged on the rod body of the adjusting rod, the length of the rod diameter of one end, which is positioned in the second main box body, of the adjusting rod is gradually reduced to form a frustum part, the frustum part can be inserted into the airflow channel and the bent end for plugging the airflow channel, the flow meter is arranged on the second main box body, and the induction end of the flow meter extends into the airflow channel.
5. The apparatus of claim 4, wherein the oxygen output concentration is controlled by: the side of the second main box body is provided with a third box body, a through screw motor is arranged in the third box body, the output end of the through screw motor is fixedly connected with one end of the adjusting rod, which is positioned outside the third main box body, and the through screw motor is electrically connected with the controller.
6. The apparatus of claim 5, wherein the oxygen output concentration is controlled by: an air cut-off detection switch is arranged in the third air delivery pipe and comprises a pair of foils and a pair of springs, the roots of the foils are fixedly arranged on the inner wall of the third gas transmission pipe, each foil is obliquely arranged in the third gas transmission pipe, the free ends of the two foils face to the same end of the third gas transmission pipe, the single foil is also connected with the inner wall of the third gas transmission pipe through the spring, the foils are electrically connected with a comparator, and the comparator is electrically connected with a controller, when the third gas pipe does not flow out, the capacitance between the pair of foils is recorded as an initial value, when the third gas pipe flows out, the capacitance between the pair of foils is not equal to the initial value, and the comparator is used for controlling the fan and the electric gas valve to be opened when the measured capacitance value is judged to be equal to the capacitance when the gas in the third gas pipe does not flow by the comparator.
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| CN200991483Y (en) * | 2006-12-26 | 2007-12-19 | 北京谊安医疗***股份有限公司 | Venturi mode oxygen-concentration compensation device |
| CN201350274Y (en) * | 2009-01-22 | 2009-11-25 | 杭州利华科技有限公司 | Multifunctional air oxygen mixer |
| WO2019070712A1 (en) * | 2017-10-03 | 2019-04-11 | Enrico Brambilla | Patient interface with integrated jet pump |
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| JPH08503643A (en) * | 1993-09-22 | 1996-04-23 | トラドテック エス アー | Method and apparatus for producing an insufficient oxygen-deficient gas mixture |
| CN1309235A (en) * | 2000-10-18 | 2001-08-22 | 罗固事 | Carburetor |
| US20060042632A1 (en) * | 2004-08-31 | 2006-03-02 | Bishop Gregory D | Apparatus for monitoring a patient during drug delivery |
| CN201192518Y (en) * | 2007-12-29 | 2009-02-11 | 叶贞志 | Medical intelligent air-oxygen mixing device |
| CN201481950U (en) * | 2009-03-10 | 2010-05-26 | 王天成 | Simple air-oxygen mixing CPAP generator |
| CN206621629U (en) * | 2016-12-20 | 2017-11-10 | 袁曼 | A kind of Multifunctional mask respirator |
| CN109568744A (en) * | 2018-11-16 | 2019-04-05 | 泗水县人民医院 | A kind of Pediatric Clinic breathing equipment with uninterrupted regulatory function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200991483Y (en) * | 2006-12-26 | 2007-12-19 | 北京谊安医疗***股份有限公司 | Venturi mode oxygen-concentration compensation device |
| CN201350274Y (en) * | 2009-01-22 | 2009-11-25 | 杭州利华科技有限公司 | Multifunctional air oxygen mixer |
| WO2019070712A1 (en) * | 2017-10-03 | 2019-04-11 | Enrico Brambilla | Patient interface with integrated jet pump |
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