CN116808369B - Sleep breathing machine capable of automatically supplementing and adjusting carbon dioxide as breathing air source - Google Patents
Sleep breathing machine capable of automatically supplementing and adjusting carbon dioxide as breathing air source Download PDFInfo
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- CN116808369B CN116808369B CN202310211639.3A CN202310211639A CN116808369B CN 116808369 B CN116808369 B CN 116808369B CN 202310211639 A CN202310211639 A CN 202310211639A CN 116808369 B CN116808369 B CN 116808369B
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 274
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 137
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 133
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 42
- 230000007958 sleep Effects 0.000 title claims description 16
- 230000001502 supplementing effect Effects 0.000 title description 4
- 230000000241 respiratory effect Effects 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 43
- 230000001276 controlling effect Effects 0.000 claims abstract description 6
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000000153 supplemental effect Effects 0.000 claims description 2
- 244000144985 peep Species 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004936 stimulating effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 73
- 239000003814 drug Substances 0.000 description 8
- 229940079593 drug Drugs 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000000884 Airway Obstruction Diseases 0.000 description 1
- 206010049816 Muscle tightness Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- 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
- A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
-
- 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
- A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
- A61M16/022—Control means therefor
-
- 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
-
- 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
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
- A61M16/202—Controlled valves electrically actuated
-
- 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
-
- 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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/02—Gases
- A61M2202/0225—Carbon oxides, e.g. Carbon dioxide
-
- 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
- A61M2205/3327—Measuring
-
- 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
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/43—Composition of exhalation
- A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)
Abstract
The invention discloses a sleeping respirator with automatic supplementary carbon dioxide regulation as a respiratory air source, which comprises the following components: the device comprises a breathing air source, a carbon dioxide air source, a host machine and a wearing part; the breathing air source is used for conveying breathing air to the wearing part through the host, the host is communicated with the wearing part through the one-way valve, a carbon dioxide concentration sensor is arranged on the wearing part, the carbon dioxide concentration sensor is connected with a carbon dioxide regulating device in the host, and the carbon dioxide regulating device is communicated with a carbon dioxide air source. The carbon dioxide concentration sensor can detect the concentration of the last carbon dioxide in the wearing part in real time, and can take the concentration as an input parameter to adjust the partial pressure value of the carbon dioxide in the respiratory gas through the carbon dioxide adjusting and controlling device. The effect of stimulating breathing is achieved by delivering carbon dioxide to the person as part of the breathing gas.
Description
Technical Field
The invention relates to the technical field of respirators, in particular to a sleeping respirator capable of automatically supplementing and adjusting carbon dioxide as a breathing air source.
Background
The sleeping respirator delivers pressurized, filtered air to the patient. After the pressurized air enters the respiratory tract, the lung tissue of the patient still has more air volume (namely, functional residual air volume) even at the end of expiration. The existence of the partial air volume can stimulate the upper airway tissue, increase the upper airway muscle tension and prevent the upper airway from collapsing during sleep, so that the upper airway maintains a sufficient open caliber at the same time of sleep as in a wake state, and periodic airway collapse during sleep is avoided. Thereby reducing the airway resistance of the upper respiratory tract and eliminating airway obstruction.
Currently, the automatic adjusting function of the sleep breathing machine for the positive end respiratory pressure (PEEP) is usually adjusted in a timed or manual mode. Therefore, how to monitor the carbon dioxide of the end call and make carbon dioxide replenishment to adjust PEEP in real time and how to control the replenishment amount is one of the technical problems to be solved by the invention. Accordingly, there is a need for a sleep ventilator that automatically supplements and regulates carbon dioxide as a source of breathing gas to at least partially address the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a sleep ventilator that automatically supplements and regulates carbon dioxide as a respiratory gas source, comprising: the device comprises a breathing air source, a carbon dioxide air source, a host machine and a wearing part; the breathing air source is used for conveying breathing air to the wearing part through the host, the host is communicated with the wearing part through the one-way valve, a carbon dioxide concentration sensor is arranged on the wearing part, the carbon dioxide concentration sensor is connected with a carbon dioxide regulating device in the host, and the carbon dioxide regulating device is communicated with a carbon dioxide air source.
Preferably, the wearing part is further provided with a PEEP valve, and the PEEP valve is connected with a PEEP adjusting module arranged in the host machine.
Preferably, a respiratory airflow generating device is further arranged in the host, the respiratory airflow source is communicated with the one-way valve through the respiratory airflow generating device, and the PEEP adjusting module is arranged between the respiratory airflow generating device and the respiratory airflow source and used for adjusting and controlling the PEEP.
Preferably, a humidifier is further disposed in the host, and the humidifier is disposed between the respiratory airflow generating device and the one-way valve, and is used for humidifying the airflow.
Preferably, the carbon dioxide regulating device adopts a FiCO regulating system, an air outlet end of the carbon dioxide regulating device is positioned between an air outlet end of the host and the one-way valve, and the carbon dioxide air source is communicated with an air inlet end of the carbon dioxide regulating device.
Preferably, the air outlet end of the main machine is provided with a pressure-combining air-collecting tube and a mixer, the air outlet end of the respiratory air flow generating device, the air outlet end of the humidifier and the air outlet end of the carbon dioxide regulating device are all communicated with the pressure-combining air-collecting tube, the mixer is arranged at the air outlet end of the pressure-combining air-collecting tube, and the pressure-combining air-collecting tube is communicated with the one-way valve through the mixer.
Preferably, one end of the pressure-combining gas-collecting tube is respectively communicated with the air outlet end of the humidifier and the air outlet end of the carbon dioxide regulating device through a split plug, the other end of the pressure-combining gas-collecting tube is communicated with the air inlet end of the mixer, and a main tube is arranged in the pressure-combining gas-collecting tube; the side wall of the pressure-combining gas collecting tube is provided with a first through hole, the gas outlet end of the respiratory gas flow generating device is communicated with the main tube through the first through hole, the inner wall of the pressure-combining gas collecting tube is provided with a carbon dioxide flow passage, and the split plug is respectively communicated with the main tube and the carbon dioxide flow passage.
Preferably, the split plug is provided with a plug, the plug is plugged with the end part of the pressure-closing gas collecting tube and extends to the inside of the main tube, the split plug is further provided with a second through hole and a third through hole, the second through hole penetrates through the split plug and the plug, the air outlet end of the humidifier is communicated with the main tube through the second through hole, the third through hole penetrates through the split plug and is communicated with the carbon dioxide flow channel, the air outlet end of the carbon dioxide regulating device is communicated with the carbon dioxide flow channel through the third through hole, the inner diameter of the carbon dioxide flow channel is matched with the aperture of the third through hole, the aperture of the first through hole is larger than that of the second through hole, the aperture of the second through hole is larger than that of the third through hole, and the aperture of the second through hole is smaller than the inner diameter of the main tube.
Preferably, the mixer comprises a screw sleeve, a threaded pipe, a limiting pipe and a mixing bucket; the mixing bucket is arranged at the end part of the threaded pipe and extends into the threaded pipe, the limiting pipe is arranged at the end part of the threaded pipe and sleeved outside the mixing bucket, the end part of the pressure-closing gas collecting pipe is communicated with the limiting pipe, the threaded sleeve is sleeved outside the threaded pipe and the limiting pipe and is in threaded connection with the threaded pipe, and a limiting piece is arranged in the limiting pipe and selectively abuts against the mixing bucket.
Preferably, the side wall of the mixing bucket is provided with a chuck, the chuck is selectively abutted to the top surface of the threaded pipe or the inner bottom surface of the limiting pipe through an elastic ring, the chuck is provided with a wind collecting ring, the mixing bucket is positioned in the wind collecting ring, the limiting piece is positioned between the wind collecting ring and the mixing bucket, the top of the mixing bucket is composed of at least three wind guiding plates spirally arranged, and the inner wall of the wind guiding plate forms a horn-shaped opening of the mixing bucket.
Compared with the prior art, the invention at least comprises the following beneficial effects:
the carbon dioxide concentration sensor can detect the concentration of the last carbon dioxide in the wearing part in real time, and can take the concentration as an input parameter to adjust the partial pressure value of the carbon dioxide in the respiratory gas through the carbon dioxide adjusting and controlling device. The effect of stimulating breathing is achieved by delivering carbon dioxide to the person as part of the breathing gas.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of a sleep ventilator with automatic supplemental regulation of carbon dioxide as a source of breathing gas according to the present invention.
Fig. 2 is a schematic airflow diagram of the wearing part in fig. 1.
FIG. 3 is a schematic diagram of FiCO according to the present invention 2 A flow chart of the conditioning system.
Fig. 4 is a schematic structural view of a pressure-combined gas collecting tube in the present invention.
Fig. 5 is a cross-sectional view of fig. 4.
Fig. 6 is a schematic view (top view) of the splitter plug of fig. 4.
Fig. 7 is a schematic view of the splitter plug of fig. 4 (bottom view).
Fig. 8 is a schematic view of the structure of the mixer of the present invention.
Fig. 9 is an exploded view of fig. 8.
Fig. 10 is a cross-sectional view of fig. 8 (the screw sleeve is not shown).
Fig. 11 is an enlarged view of a (first embodiment of the stopper) and B (second embodiment of the stopper) when the elastic ring of fig. 10 is of the first embodiment, and an enlarged view of C (corresponding to a) and D (corresponding to B) when the elastic ring is of the second embodiment.
FIG. 12 is a partial cross-sectional view (top view) of the top of the mixing bucket of the present invention.
Fig. 13 is a partial cross-sectional view of the mixing bucket of fig. 10 (the elastomeric ring is not shown).
In the figure: 1 respiratory air source, 2 carbon dioxide air source, 3 host computer, 31 carbon dioxide regulation and control device, 32PEEP regulating module, 33 respiratory air flow generating device, 34 humidifier, 4 wearing part, 41 carbon dioxide concentration sensor, 42PEEP valve, 5 check valve, 6 pressure collecting pipe that closes, 61 split plug, 611 bayonet joint, 612 second through hole, 613 third through hole, 62 main pipe, 63 first through hole, 64 carbon dioxide runner, 7 blender, 71 swivel nut, 72 screwed pipe, 73 spacing pipe, 731 spacing piece, 74 mixing bucket, 75 elastic ring, 76 chuck, 77 wind gathering ring, 78 induced air board.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 13, the present invention provides a sleep ventilator for automatically adjusting carbon dioxide as a respiratory air source, comprising: a breathing gas source 1, a carbon dioxide gas source 2, a host 3 and a wearing part 4; the breathing gas source 1 is used for conveying breathing gas to the wearing part 4 through the host computer 3, the host computer 3 is communicated with the wearing part 4 through the one-way valve 5, a carbon dioxide concentration sensor 41 is arranged on the wearing part 4, the carbon dioxide concentration sensor 41 is connected with a carbon dioxide regulating device 31 in the host computer 3, and the carbon dioxide regulating device 31 is communicated with the carbon dioxide gas source 2.
The working principle of the technical scheme is as follows: when the breathing machine is used, the breathing air source 1 enters the host computer 3, then enters the wearing part 4 through the one-way valve 5 on the breathing pipe, and is inhaled by a user. After the gas exhaled by the user enters the wearing part 4, the one-way valve 5 limits the backflow, and the exhaled gas is exhausted from the wearing part 4 to the atmosphere.
When the host computer 3 works, the carbon dioxide regulating device 31 introduces a certain flow of carbon dioxide gas into the breathing pipeline at the air outlet end of the host computer 3 according to a set value and enters a user along with the breathing gas. In this process, the carbon dioxide concentration sensor 41 on the wearing part 4 feeds back the carbon dioxide concentration to the carbon dioxide regulating device 31 in real time. The carbon dioxide regulating device 31 regulates the flow rate of carbon dioxide in real time, and thus regulates the partial pressure value of carbon dioxide of the respiratory gas entering the wearing part 4.
The beneficial effects of the technical scheme are that: by the above-described configuration, the carbon dioxide concentration sensor 41 can detect the concentration of the last-breath carbon dioxide in the wearing part 4 in real time, and can adjust the partial pressure value of carbon dioxide in the respiratory gas by the carbon dioxide control device 31 using this as an input parameter. The effect of stimulating breathing is achieved by delivering carbon dioxide to the person as part of the breathing gas.
In one embodiment, a PEEP valve 42 is further provided on the wearing part 4, and the PEEP valve 42 is adjusted with the PEEP provided in the host computer 3The modules 32 are connected. The main machine 3 is also internally provided with a respiratory airflow generating device 33, the respiratory airflow source 1 is communicated with the one-way valve 5 through the respiratory airflow generating device 33, and the PEEP regulating module 32 is arranged between the respiratory airflow generating device 33 and the respiratory airflow source 1 and used for regulating and controlling PEEP. A humidifier 34 is further disposed in the main unit 3, and the humidifier 34 is disposed between the respiratory airflow generating device 33 and the one-way valve 5, for humidifying the airflow. The carbon dioxide regulating and controlling device 31 adopts FiCO 2 And the regulating system, the air outlet end of the carbon dioxide regulating device 31 is positioned between the air outlet end of the host 3 and the one-way valve 5, and the carbon dioxide air source 2 is communicated with the air inlet end of the carbon dioxide regulating device 31.
The technical scheme has the working principle and beneficial effects that: the source of breathing gas 1 enters a breathing gas flow generating device 33. The breathing air flow generating device 33 adjusts the partial pressure of oxygen, and makes part of the air flow humidified by the humidifier 34 to form a tidal air flow, and then enters the user body after entering the wearing part 4 through the one-way valve 5 on the breathing tube. After the gas exhaled by the user enters the wearing part 4, the exhaled gas is exhausted to the atmosphere from the PEEP valve 42 on the wearing part 4 due to the restriction of the back flow by the one-way valve 5. PEEP valve 42 is coupled to PEEP adjustment module 32 within host 3 and PEEP valve 42 is adjusted in real time based on a set point to control PEEP. Thereby increasing PEEP regulation function of the sleep ventilator.
When the host computer 3 works, the carbon dioxide regulating device 31 introduces carbon dioxide gas with certain flow into the breathing pipeline at the air outlet end of the humidifier 34 according to a set value and enters the user body along with the tidal current. In this process, the carbon dioxide concentration sensor 41 on the wearing part 4 feeds back the carbon dioxide concentration to the carbon dioxide regulating device 31 in real time. The carbon dioxide regulating device 31 regulates the flow of the entering carbon dioxide in real time, and further regulates the partial pressure value of the carbon dioxide of the tidal current entering the user.
FiCO 2 The regulating system is controlled in the following way
S1: carbon dioxide partial pressure value set value FiCO 2 And FiCO 2 A safety threshold;
S2: the carbon dioxide regulating device 31 outputs a carbon dioxide gas flow rate Q CO2 ；
S3: collecting the carbon dioxide concentration C in the wearing part 4 CO2，mask ；
S4：FiCO 2 Comparing the safety threshold, if the safety is high, executing the step S5, and if the safety is low, starting an alarm system, and stopping supplying carbon dioxide;
S5：FiCO 2 the comparison algorithm executes the step S6 if compensation is needed, and repeatedly executes the step S2 if compensation is not needed;
S6：QCO 2 self-adaptive adjusting algorithm according to set value FiCO 2 And C CO2，mask Obtaining Q required by next air supply CO2 And repeatedly executing step S2.
In one embodiment, the air outlet end of the main unit 3 is provided with a pressure-combining air-collecting tube 6 and a mixer 7, the air outlet end of the respiratory airflow generating device 33, the air outlet end of the humidifier 34 and the air outlet end of the carbon dioxide regulating device 31 are all communicated with the pressure-combining air-collecting tube 6, the mixer 7 is arranged at the air outlet end of the pressure-combining air-collecting tube 6, and the pressure-combining air-collecting tube 6 is communicated with the one-way valve 5 through the mixer 7. One end of the pressure-combining gas-collecting tube 6 is respectively communicated with the gas outlet end of the humidifier 34 and the gas outlet end of the carbon dioxide regulating device 31 through a split plug 61, the other end of the pressure-combining gas-collecting tube 6 is communicated with the gas inlet end of the mixer 7, and a main tube 62 is arranged in the pressure-combining gas-collecting tube 6; the side wall of the pressure-combining gas collecting tube 6 is provided with a first through hole 63, the gas outlet end of the respiratory gas flow generating device 33 is communicated with the main tube 62 through the first through hole 63, the inner wall of the pressure-combining gas collecting tube 6 is provided with a carbon dioxide flow passage 64, and the split plug 61 is respectively communicated with the main tube 62 and the carbon dioxide flow passage 64. The split-flow plug 61 is provided with an insertion head 611, the insertion head 611 is inserted into the end of the pressure-combining gas collecting pipe 6 and extends to the inside of the main pipe 62, the split-flow plug 61 is further provided with a second through hole 612 and a third through hole 613, the second through hole 612 penetrates through the split-flow plug 61 and the insertion head 611, the gas outlet end of the humidifier 34 is communicated with the main pipe 62 through the second through hole 612, the third through hole 613 penetrates through the split-flow plug 61 and is communicated with the carbon dioxide flow channel 64, the gas outlet end of the carbon dioxide regulating device 31 is communicated with the carbon dioxide flow channel 64 through the third through hole 613, the inner diameter of the carbon dioxide flow channel 64 is matched with the aperture of the third through hole 613, the aperture of the first through hole 63 is larger than the aperture of the second through hole 612, the aperture of the second through hole 612 is larger than the aperture of the third through hole 613, and the aperture of the second through hole 612 is smaller than the inner diameter of the main pipe 62.
The technical scheme has the working principle and beneficial effects that: from the above embodiment, it can be found that the gas delivered from the gas outlet end of the main engine 3 can be practically divided into three types: the respiratory gas which is not humidified by the humidifier 34, the tidal current which is generated by the humidification of the humidifier 34 and the carbon dioxide gas which are divided by the respiratory gas flow generating device 33; the respiratory gas in the above three gases is mainly used for oxygen supply and PEEP pressure maintenance, the tidal current is used for preventing the user from drying mouth and nose, the carbon dioxide gas is used for stimulating respiration, so the air pressure and flow rate of the three gases are different during supply, the respiratory gas is high flow rate, the tidal current is medium flow rate, and the carbon dioxide is low flow rate, the three gases are combined through the pressure combining gas collecting pipe 6 at first, namely the three gases are combined to maintain the air pressure entering the wearing part 4 not to be disturbed, meanwhile, the three gases are uniformly mixed through the mixer 7 after being combined, because the tidal current contains more moisture, if not timely diffused, sedimentation can be caused, water is likely to be accumulated in the respiratory pipeline, when the user sleeps side-over, the water is likely to enter the wearing part 4 along the pipeline to affect the sleeping and use of the user, meanwhile, the carbon dioxide gas is required to be quickly mixed with the respiratory gas uniformly, because the air flow rate of the main machine 3 is relatively fast, if the carbon dioxide is not timely mixed, the carbon dioxide concentration sensor 41 can not accurately measure the concentration of the user's final carbon dioxide concentration in the wearing part 4, and the relatively high concentration carbon dioxide also can affect the user.
The three gases are respectively communicated with the first through hole 63, the second through hole 612 and the third through hole 613 of the pressure-combining gas collecting pipe 6. With the sequential reduction of the aperture, the pressurizing effect can be provided for the middle and low flow gases while the reverse flow of the breathing gas is avoided.
Because the moisture content in the tidal current is high, in order to accelerate the diffusion, the tidal current enters through the second through holes 612 and is discharged from the main pipe 62, and the discharged tidal current can be directly combined with the high-flow respiratory gas entering from the first through holes 63, so that the rapid diffusion of the tidal current is realized, and the sedimentation is avoided. Meanwhile, the flow of the breathing gas and the flow of the tidal current separated from the breathing gas flow generating device 33 may be joined to be not smaller than the air pressure value provided by the breathing gas source 1 (because the aperture of the second through hole 612 may be set to be much smaller than the aperture of the first through hole 63, thereby achieving the effect of pressurizing the flow of the tidal current).
When supplementing carbon dioxide gas, carbon dioxide can enter the carbon dioxide flow channel 64 through the third through hole 613, so that carbon dioxide supply is realized, because the carbon dioxide supply is regulated and controlled by the carbon dioxide regulating device 31 and is not continuously supplied, the carbon dioxide flow channel 64 is required to be supplied independently, and because the aperture of the carbon dioxide flow channel 64 and the aperture of the third through hole 613 are matched and smaller than the aperture of the second through hole 612, and meanwhile, the carbon dioxide flow channel 64 is arranged in parallel with the main pipe 62, so that the merged tidal current and respiratory gas can be effectively prevented from flowing backwards along the carbon dioxide flow channel 64 when carbon dioxide supply is not performed.
In one embodiment, the mixer 7 comprises a screw sleeve 71, a threaded tube 72, a limiting tube 73 and a mixing bucket 74; the mixing bucket 74 is arranged at the end part of the threaded pipe 72 and extends into the threaded pipe 72, the limiting pipe 73 is arranged at the end part of the threaded pipe 72 and sleeved outside the mixing bucket 74, the end part of the pressure-closing gas collecting pipe 6 is communicated with the limiting pipe 73, the threaded sleeve 71 is sleeved outside the threaded pipe 72 and the limiting pipe 73 and is in threaded connection with the threaded pipe 72, a limiting piece 731 is arranged in the limiting pipe 73, and the limiting piece 731 is selectively abutted to the mixing bucket 74. The side wall of the mixing bucket 74 is provided with a chuck 76, the chuck 76 is selectively abutted to the top surface of the threaded pipe 72 or the inner bottom surface of the limiting pipe 73 through an elastic ring 75, the chuck 76 is provided with an air collecting ring 77, the mixing bucket 74 is positioned in the air collecting ring 77, a limiting piece 731 is positioned between the air collecting ring 77 and the mixing bucket 74, the top of the mixing bucket 74 is composed of at least three air guiding plates 78 which are spirally arranged, and the inner wall of the air guiding plate 78 forms a horn-shaped opening of the mixing bucket 74.
The technical scheme has the working principle and beneficial effects that: the threaded tube 72 and the threaded sleeve 71 are mutually matched to limit and fix the limiting tube 73 and the mixing bucket 74. Meanwhile, the effects of convenient disassembly, maintenance and cleaning are realized.
To further increase the range of application of the sleep ventilator, the function of the stopper 731 is changed by adding the stopper 731 to the stopper tube 73 and adjusting the mounting position of the elastic ring 75 on the chuck 76. This embodiment provides two embodiments for the stop 731 and two mounting positions for the resilient ring 75.
In the case where the sleep ventilator is used for medical treatment and an inhaled medicine is required to be additionally added, the stopper 731 is formed as shown in A, C of fig. 11, wherein a corresponds to the mounting position of the elastic ring 75 when the inhaled medicine is required to be additionally added, and C corresponds to the position of the elastic ring 75 when the stopper 731 is temporarily closed.
In medical treatment, the limiting piece 731 is hollow and tubular, and extends to the upper side of the mixing bucket 74 through the limiting pipe 73, when additional medicines are to be added, the embodiment shown in fig. 11 a is adopted, the elastic ring 75 is placed in abutment with the bottom surface of the limiting pipe 73, so that a gap is left between the limiting piece 731 and the mixing bucket 74, medicines can enter the upper side of the mixing bucket 74 through the limiting piece 731, and are mixed with breathing gas and the like through the mixing bucket 74 and then sent to the wearing part 4, and a plurality of limiting pieces 731 can be arranged to meet the requirement of simultaneously dispensing multiple medicines.
The elastic ring 75 may be adjusted to the underside of the cartridge 75 so that the stop 731 may be sealed when inhalation of medication is temporarily not required.
When the sleeping respirator is used for home use, a solid limiting piece 731 as shown in B, D can be adopted, and a hollow and solid mixed mode can be adopted, so that emergency medication is facilitated.
The mixed gas can strike on the chuck 75 after entering through the limiting pipe 73, because the existence of the wind gathering ring 77 can avoid the mixed gas entering to disperse all around, the gas entering can form rotary air flow under the action of the wind guiding plate 78 and is discharged through the horn-shaped opening of the mixing hopper 74, and the wind guiding plate 78 can enable the mixed gas entering to effectively form a cyclone, so that the uniform and rapid mixing of three gases and additional medicines is realized.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (4)
1. A sleep ventilator for automatically supplemental conditioning carbon dioxide as a source of breathing gas, comprising: a respiratory air source (1), a carbon dioxide air source (2), a host machine (3) and a wearing part (4); the breathing gas source (1) is used for conveying breathing gas to the wearing part (4) through the host machine (3), the host machine (3) is communicated with the wearing part (4) through a one-way valve (5), a carbon dioxide concentration sensor (41) is arranged on the wearing part (4), the carbon dioxide concentration sensor (41) is connected with a carbon dioxide regulating device (31) in the host machine (3), and the carbon dioxide regulating device (31) is communicated with the carbon dioxide gas source (2);
the wearing part (4) is also provided with a PEEP valve (42), and the PEEP valve (42) is connected with a PEEP regulating module (32) arranged in the host machine (3);
a respiratory airflow generating device (33) is further arranged in the host (3), the respiratory airflow source (1) is communicated with the one-way valve (5) through the respiratory airflow generating device (33), and the PEEP regulating module (32) is arranged between the respiratory airflow generating device (33) and the respiratory airflow source (1) and used for regulating and controlling PEEP;
a humidifier (34) is further arranged in the host (3), and the humidifier (34) is arranged between the respiratory airflow generating device (33) and the one-way valve (5) and is used for humidifying airflow;
the air outlet end of the main machine (3) is provided with a pressure-combining air-collecting pipe (6) and a mixer (7), the air outlet end of the respiratory air flow generating device (33), the air outlet end of the humidifier (34) and the air outlet end of the carbon dioxide regulating device (31) are all communicated with the pressure-combining air-collecting pipe (6), the mixer (7) is arranged at the air outlet end of the pressure-combining air-collecting pipe (6), and the pressure-combining air-collecting pipe (6) is communicated with the one-way valve (5) through the mixer (7);
one end of the pressure-combining gas-collecting tube (6) is respectively communicated with the gas outlet end of the humidifier (34) and the gas outlet end of the carbon dioxide regulating device (31) through a split plug (61), the other end of the pressure-combining gas-collecting tube (6) is communicated with the gas inlet end of the mixer (7), and a main tube (62) is arranged in the pressure-combining gas-collecting tube (6); the side wall of the pressure-combining gas collecting pipe (6) is provided with a first through hole (63), the gas outlet end of the respiratory gas flow generating device (33) is communicated with the main pipe (62) through the first through hole (63), the inner wall of the pressure-combining gas collecting pipe (6) is provided with a carbon dioxide flow passage (64), and the split plug (61) is respectively communicated with the main pipe (62) and the carbon dioxide flow passage (64);
be provided with bayonet joint (611) on reposition of redundant personnel plug (61), bayonet joint (611) with the tip grafting of closing pressure gas collecting tube (6) is and extend to the inside of being responsible for (62), still be provided with second through-hole (612) and third through-hole (613) on reposition of redundant personnel plug (61), second through-hole (612) run through reposition of redundant personnel plug (61) with bayonet joint (611), the air outlet end of humidifier (34) is passed through second through-hole (612) with be responsible for (62) intercommunication, third through-hole (613) run through reposition of redundant personnel plug (61) with carbon dioxide runner (64) intercommunication, the air outlet end of carbon dioxide regulation and control device (31) is passed through third through-hole (613) and carbon dioxide runner (64) intercommunication, the internal diameter of carbon dioxide runner (64) with the aperture of third through-hole (613) is suitable for, the aperture of first through-hole (63) is greater than the aperture of second through-hole (612) and the aperture of second through-hole (612) is greater than the internal diameter of main pipe (62).
2. Sleep ventilator with automatic supplementary regulation of carbon dioxide as a respiratory air source according to claim 1, characterized in that the carbon dioxide regulating device (31) adopts FiCO 2 And the air outlet end of the carbon dioxide regulating device (31) is positioned between the air outlet end of the host (3) and the one-way valve (5), and the carbon dioxide air source (2) is communicated with the air inlet end of the carbon dioxide regulating device (31).
3. The sleeping respirator with automatic supplementary regulation of carbon dioxide as a respiratory gas source according to claim 1, wherein the mixer (7) comprises a screw sleeve (71), a threaded tube (72), a limiting tube (73) and a mixing bucket (74); the mixing bucket (74) is arranged at the end part of the threaded pipe (72) and extends into the threaded pipe (72), the limiting pipe (73) is arranged at the end part of the threaded pipe (72) and sleeved outside the mixing bucket (74), the end part of the pressure-closing gas collecting pipe (6) is communicated with the limiting pipe (73), the threaded sleeve (71) is sleeved outside the threaded pipe (72) and the limiting pipe (73) and is in threaded connection with the threaded pipe (72), a limiting piece (731) is arranged in the limiting pipe (73), and the limiting piece (731) is selectively abutted with the mixing bucket (74).
4. A sleeping respirator with automatic supplementary regulation of carbon dioxide as a respiratory air source according to claim 3, characterized in that a chuck (76) is arranged on the side wall of the mixing bucket (74), the chuck (76) is selectively abutted with the top surface of the threaded pipe (72) or the inner bottom surface of the limiting pipe (73) through an elastic ring (75), a wind gathering ring (77) is arranged on the chuck (76), the mixing bucket (74) is positioned in the wind gathering ring (77), the limiting piece (731) is positioned between the wind gathering ring (77) and the mixing bucket (74), the top of the mixing bucket (74) is composed of at least three air guiding plates (78) which are spirally arranged, and the inner wall of the air guiding plates (78) forms a horn-shaped opening of the mixing bucket (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310211639.3A CN116808369B (en) | 2023-03-07 | 2023-03-07 | Sleep breathing machine capable of automatically supplementing and adjusting carbon dioxide as breathing air source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310211639.3A CN116808369B (en) | 2023-03-07 | 2023-03-07 | Sleep breathing machine capable of automatically supplementing and adjusting carbon dioxide as breathing air source |
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| Publication Number | Publication Date |
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| CN116808369A CN116808369A (en) | 2023-09-29 |
| CN116808369B true CN116808369B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310211639.3A Active CN116808369B (en) | 2023-03-07 | 2023-03-07 | Sleep breathing machine capable of automatically supplementing and adjusting carbon dioxide as breathing air source |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000279519A (en) * | 1999-03-30 | 2000-10-10 | Suzuki Motor Corp | High frequency artificial respiratory apparatus |
| CN103386162A (en) * | 2012-05-09 | 2013-11-13 | 广西南宁科威华医疗科技有限公司 | Mixed gas proportion oxygen system with ultrasonic atomization function |
| CN114733024A (en) * | 2022-04-26 | 2022-07-12 | 广州蓝仕威克医疗科技有限公司 | Breathing device with carbon dioxide compensation function |
-
2023
- 2023-03-07 CN CN202310211639.3A patent/CN116808369B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000279519A (en) * | 1999-03-30 | 2000-10-10 | Suzuki Motor Corp | High frequency artificial respiratory apparatus |
| CN103386162A (en) * | 2012-05-09 | 2013-11-13 | 广西南宁科威华医疗科技有限公司 | Mixed gas proportion oxygen system with ultrasonic atomization function |
| CN114733024A (en) * | 2022-04-26 | 2022-07-12 | 广州蓝仕威克医疗科技有限公司 | Breathing device with carbon dioxide compensation function |
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|---|---|
| CN116808369A (en) | 2023-09-29 |
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