CN107096104B - Oxygen therapy instrument and nasal pipeline thereof - Google Patents
Oxygen therapy instrument and nasal pipeline thereof Download PDFInfo
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- CN107096104B CN107096104B CN201710426922.2A CN201710426922A CN107096104B CN 107096104 B CN107096104 B CN 107096104B CN 201710426922 A CN201710426922 A CN 201710426922A CN 107096104 B CN107096104 B CN 107096104B
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- 238000002640 oxygen therapy Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 44
- 239000001301 oxygen Substances 0.000 claims abstract description 36
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims description 9
- 241001631457 Cannula Species 0.000 claims 1
- 210000003928 nasal cavity Anatomy 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 4
- 210000001331 nose Anatomy 0.000 description 13
- 230000029058 respiratory gaseous exchange Effects 0.000 description 7
- 208000023504 respiratory system disease Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010007556 Cardiac failure acute Diseases 0.000 description 1
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 206010067775 Upper airway obstruction Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 206010001053 acute respiratory failure Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013276 bronchoscopy Methods 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000001797 obstructive sleep apnea Diseases 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000009423 ventilation Methods 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
-
- 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
- A61M2202/0208—Oxygen
-
- 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
-
- 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
- A61M2205/3368—Temperature
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a nasal pipeline for an oxygen therapy instrument, which comprises an air supply pipe and two nasal inlet pipes; the nasal cavity inhalation device also comprises an air outlet return pipe arranged at the periphery of the nasal cavity inhalation pipe, an air outlet channel which is communicated up and down is arranged between the air outlet return pipe and the nasal cavity inhalation pipe, oxygen enters nostrils from the nasal cavity inhalation pipe during inhalation, and air is discharged from the channel between the air outlet return pipe and the nasal cavity inhalation pipe during exhalation; a main sensor for detecting whether gas passes through is arranged in an air outlet channel between the air inlet pipe and the air outlet return pipe; the main sensor is in signal connection with the processor, and the main sensor sends a signal to the processor when detecting that the gas passes, and the processor controls the corresponding components to reduce the gas flow. When the air exhales outwards, the air can only be discharged from the air outlet channel, the main sensor detects the air flow, the air flow is considered to be in an exhale state, the flow of the mixed air of oxygen supply is reduced, the energy-saving effect is achieved, and the use efficiency of pure oxygen is improved. The invention also provides an oxygen therapy instrument comprising the nasal catheter, which can achieve the same technical effect.
Description
Technical Field
The application relates to the technical field of medical equipment, and further relates to a nasal pipeline. In addition, the application also provides an oxygen therapy instrument comprising the nasal pipeline.
Background
The high-flow humidifying oxygen therapy instrument is an oxygen therapy mode for directly delivering high-flow air-oxygen mixed gas with certain oxygen concentration to a patient through a nasal catheter without sealing, is used for treating various respiratory diseases, can improve oxygenation conditions of patients with acute respiratory failure and acute heart failure, improve upper airway obstruction conditions of patients with obstructive sleep apnea, and reduce respiratory disorder indexes of patients with acute cerebral apoplexy accompanied with respiratory disorder; as an oxygen therapy for extension therapy, bronchoscopy, etc.
High flow humidified oxygen therapy apparatus uses nasal catheters to provide humidified, warmed, high concentration oxygen to a patient. The current high flow humidifying oxygen therapy instrument adopts a continuous ventilation mode to continuously convey mixed gas to a patient, and the patient can inhale or exhale to keep the same air supply amount, so that the waste of oxygen is caused to a certain extent, the power consumption of the equipment is improved, and the humidifying capacity is reduced.
Disclosure of Invention
The invention provides a nasal pipeline, which can detect the expiration and inspiration states of a patient, and a processor controls the supply of gas according to different states to achieve the effects of saving energy, and the specific scheme is as follows:
the nasal pipeline is used for an oxygen therapy instrument and comprises an air supply pipe, two nasal inlet pipes and an air outlet return pipe arranged on the periphery of the nasal inlet pipes, wherein an air outlet channel which is vertically communicated is arranged between the air outlet return pipe and the nasal inlet pipes; a main sensor for detecting whether gas passes through is arranged in an air outlet channel between the air inlet pipe and the air outlet return pipe; the main sensor is in signal connection with the processor, and the processor reduces the gas flow when the main sensor detects the signal of the gas passing.
Optionally, the main sensor is a pressure sensor or a flow sensor, and the main sensor is arranged on the inner walls of the two air outlet return pipes.
Optionally, the side wall of the air outlet return pipe is arc-shaped and is clung to the inner side of the nostril; the top end of the air outlet return pipe is lower than or equal to the nose inlet pipe.
Optionally, the device further comprises a first auxiliary sensor and a second auxiliary sensor which are arranged between the two nasal inlet pipes, wherein the gas flowing through the air outlet return pipe passes through the first auxiliary sensor, and the types of the first auxiliary sensor and the second auxiliary sensor are the same; the second auxiliary sensor is arranged on the air supply pipe and on the outer surface opposite to the nose inlet pipe.
Optionally, the first auxiliary sensor and the second auxiliary sensor are temperature sensors, or oxygen concentration sensors, or humidity sensors.
Optionally, the connection line of the first auxiliary sensor and the second auxiliary sensor passes through the central axis of the air supply pipe, and the distance between the first auxiliary sensor and the second auxiliary sensor and the two nasal inlet pipes is equal.
Optionally, the nasal cannula further comprises auxiliary nasal valves arranged on the air supply pipes, wherein the two auxiliary nasal valves are arc-shaped surfaces and are positioned on two sides of the two nasal inlet pipes and used for clamping nasal wings.
In addition, the invention also provides an oxygen therapy instrument which comprises the nasal cannula.
Optionally, an air flow sensor and an oxygen flow sensor are also included; and the processor adjusts the rotating speed of the turbine according to the detection value of the air flow sensor, and adjusts the opening of the oxygen adjusting valve according to the detection value of the oxygen flow sensor.
Optionally, a humidifier is further included that is connected to the inlet end of the plenum.
The invention provides a nasal pipeline for an oxygen therapy instrument, which comprises an air supply pipe and two nasal inlet pipes, wherein the two nasal inlet pipes are arranged on the air supply pipe at the same side and are used for inserting into nostrils to supply oxygen; the nasal cavity inhalation device also comprises an air outlet return pipe arranged at the periphery of the nasal cavity inhalation pipe, an air outlet channel which is communicated up and down is arranged between the air outlet return pipe and the nasal cavity inhalation pipe, oxygen enters nostrils from the nasal cavity inhalation pipe during inhalation, and air is discharged from the channel between the air outlet return pipe and the nasal cavity inhalation pipe during exhalation; a main sensor for detecting whether gas passes through is arranged in an air outlet channel between the air inlet pipe and the air outlet return pipe; the main sensor is in signal connection with the processor, and the main sensor sends a signal to the processor when detecting that the gas passes, and the processor controls the corresponding components to reduce the gas flow.
The main sensor is arranged between the nose inlet pipe and the air outlet return pipe and is used for detecting whether air passes through, the air pressure in the air supply pipe is higher, only air can be supplied outwards, and the air pressure of expired air cannot enter the nose inlet pipe, so that oxygen enters the nasal cavity from the nose inlet pipe during inspiration, no air flow exists between the air outlet return pipe and the nose inlet pipe, the main sensor does not detect a signal, and the state is considered as an inspiration state, and the oxygen is normally supplied at the moment; when exhaling outwards, gas can not enter the nose tube and can only be discharged from the channel between the nose tube and the air outlet return tube, at the moment, the main sensor detects air flow and sends signals to the processor, and at the moment, the air is considered to be in an exhaling state, a large amount of oxygen is not needed to supply, so that the flow of mixed gas for supplying oxygen can be reduced, the energy-saving effect is achieved, and the use efficiency of pure oxygen is improved.
The invention also provides an oxygen therapy instrument comprising the nasal catheter, which can achieve the same technical effect.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a nasal cannula according to the present application;
fig. 2 is a partial block diagram of an oxygen therapy apparatus.
The method comprises the following steps:
The device comprises an air supply pipe 1, a nose inlet pipe 2, an air outlet return pipe 3, a main sensor 4, a first auxiliary sensor 5, a second auxiliary sensor 6 and an auxiliary nasal valve 7.
Detailed Description
The invention aims at providing a nasal pipeline which can detect the expiration and inspiration states of a patient, and a processor controls the supply of gas according to different states, so that the effects of saving energy and saving are achieved.
In order to make the technical scheme of the present application better understood by those skilled in the art, the oxygen therapy apparatus and the nasal passages thereof according to the present application will be described in detail with reference to the accompanying drawings and the specific embodiments.
The application provides a nasal tube for an oxygen therapy instrument, as shown in fig. 1, which is a schematic structural view of the nasal tube provided by the application, wherein arrows represent gas flow. The nasal cavity breathing device comprises an air supply pipe 1 and two nasal inlet pipes 2, wherein the nasal inlet pipes 2 and the air inlet pipe 1 are mutually perpendicular, the nasal inlet pipes 2 are used for being inserted into the nasal cavity, one end of each air supply pipe 1 is used for air inlet, and the air flows out of the nasal inlet pipes 2 into the nasal cavity for breathing.
The utility model also comprises an air outlet return pipe 3 arranged at the periphery of the air inlet pipe 2, the air outlet return pipe 3 and an air outlet channel of the air inlet pipe 2, the upper and lower of the air outlet channel are all communicated, and the air exhaled from the nasal cavity is exhausted from the air outlet channel between the air outlet return pipe 3 and the air inlet pipe 2. The air supply pipe 1 is communicated with an air source, the internal air pressure is high, and oxygen enters the nasal cavity from the nasal inlet pipe 2 during inhalation; the air pressure during exhalation is lower than the air pressure in the air supply pipe 1, and the exhaled air cannot enter the air supply pipe 2 and is exhaled through the air outlet channel between the air outlet return pipe 3 and the air supply pipe 2.
A main sensor 4 for detecting whether gas passes through is arranged in an air outlet channel between the air inlet pipe 2 and the air outlet return pipe 3; the main sensor 4 is in signal connection with the processor, when the main sensor 4 detects that the gas passes, the patient is considered to be in an expiration state, the processor receives the expiration signal and controls corresponding components so as to reduce the flow of the mixed gas of oxygen and air, the content of the oxygen is not changed, the supply quantity of the air is synchronously reduced with the supply quantity of the pure oxygen, the flow of the mixed gas is reduced, the oxygen content is unchanged, and the use experience of the patient is not influenced. When the main sensor 4 does not detect the gas passing, the patient considers to be in an inhalation state, and the normal oxygen supply is kept for the normal use of the patient.
According to the application, the corresponding sensors are arranged to detect different states of expiration and inspiration of a patient, and the oxygen supply flow is changed according to different states of respiration, so that the parameters of the gas to be conveyed are dynamically adjusted, compared with the traditional continuous gas conveying mode, the power consumption of equipment can be reduced, the waste of oxygen is reduced, the gas does not always impact the nasal cavity, and the use comfort of the patient is improved.
On the basis of the scheme, the main sensor 4 provided by the application is a pressure sensor or a flow sensor, and the main sensor is very close to the nasal cavity, so that the gas flow rate is very high, and the main sensor 4 is used for detecting the dynamic index of the expired gas, so that the obtained structure is more accurate and reliable; specifically, the main sensor 4 is disposed on the inner walls of the two air-out return pipes 3, and of course, may be disposed on the outer wall of the air-in nasal tube 2 or on the connection structure of the air-out return pipe 3 and the air-in nasal tube 2, as long as the position of blowing of the exhaled air can be directly received.
Taking the main sensor 4 as an example, when the patient exhales, the nasal air pressure is increased due to the conflict between the patient exhales and the flow output by the nasal catheter, and when the patient inhales, the nasal air pressure is reduced, so that the breathing state is determined. If the primary sensor 4 is a flow sensor, the patient breathing state is determined based on the direction of the patient's breathing gas flow change.
Preferably, the side wall of the air outlet return pipe 3 is arc-shaped, is made of soft materials, can be clung to the inner side of nostrils, and exhaled air can only be exhausted through the space between the air outlet return pipe 3 and the nose inlet pipe 2 and acts on the main sensor 4 completely, so that the detection result of the main sensor 4 is more accurate and reliable. In addition, the top end of the air outlet return pipe 3 is flush with the height of the nose inlet pipe 2 or lower than the height of the nose inlet pipe 2 so as to play a role in guiding the exhaled air.
On the basis of any of the above technical solutions, the nasal catheter further comprises a first auxiliary sensor 5 and a second auxiliary sensor 6, both of which are disposed at a position between the two nasal feeding tubes 2, preferably on the outer wall of the air feeding tube 1, and of course, the first auxiliary sensor 5 may be disposed at the bottom end of the nasal feeding tube 2, so long as the air flowing through the air outlet return tube 3 passes through the first auxiliary sensor 5, and these specific embodiments are included in the protection scope of the present application.
The first auxiliary sensor 5 and the second auxiliary sensor 6 are the same in type, detection results of the first auxiliary sensor and the second auxiliary sensor are compared, and the breathing state is judged through the difference value of the first auxiliary sensor and the second auxiliary sensor. The second auxiliary sensor 6 is arranged on the air supply pipe 1 and on the outer surface opposite to the nasal tube 2, the exhaled air cannot be directly blown onto the second auxiliary sensor 6, namely, the parameter of the surrounding environment is detected by the second auxiliary sensor 6, the parameter of the exhaled air is detected by the first auxiliary sensor 5, and the difference value of the parameter and the parameter is the variation caused by the exhaled air. Of course, the application sets a group of two sensors for comparison, the types of the two sensors are the same, and also sets a plurality of groups of corresponding sensors, wherein each group of two or more sensors has the same type, thereby playing an auxiliary judging role, and synchronously comparing and analyzing with the detection value of the main sensor 4 to obtain a more accurate structure.
In the present application, the first auxiliary sensor 5 and the second auxiliary sensor 6 are temperature sensors, oxygen concentration sensors, or humidity sensors, and the first auxiliary sensor 5 and the second auxiliary sensor 6 may be any one of the three sensors, or may be other sensors capable of detecting gas parameters. The gas flow rate is slow when flowing through the first auxiliary sensor 5, and the gas flow rate can be used for analyzing components and corresponding indexes in the gas, and is mainly used for detecting the content in the gas and complementing the physical dynamic parameters detected by the main sensor 4.
Preferably, the connection line between the first auxiliary sensor 5 and the second auxiliary sensor 6 passes through the central axis of the air supply pipe 1, and the air supply pipe 1 is generally cylindrical, and the central axis is the central line of the air supply pipe 1; the first auxiliary sensor 5 and the second auxiliary sensor 6 are equally spaced from the two nasal inlet tubes 2 so that the first auxiliary sensor 5 receives the exhaled air from the two nasal return tubes 3 evenly. Of course, it is also possible to provide a first auxiliary sensor 5 at a position close to the two nasal passages 2, respectively, and compare the detected values with the detected values of the second auxiliary sensors 6, respectively.
Taking the first auxiliary sensor 5 and the second auxiliary sensor 6 as temperature sensors, and detecting the ambient temperature around the nose by the first auxiliary sensor 5 and the second auxiliary sensor 6 to be basically the same when the patient inhales; as the patient begins to exhale, the high-temperature and humid gas changes the temperature value of the first auxiliary sensor 5, and the temperature feedback difference of the two relative to the temperature of the second auxiliary sensor 6 is continuously increased; similarly, when the patient starts inhaling, the feedback difference amounts of the first auxiliary sensor 5 and the second auxiliary sensor 6 are continuously reduced; to determine whether the patient is in an expiratory or inspiratory state.
Furthermore, the nasal catheter also comprises auxiliary nasal valves 7 arranged on the air supply pipe 1, wherein the two auxiliary nasal valves 7 are arc-shaped surfaces and are positioned on two sides of the two nasal inlet pipes 2 and are attached to the shape of the nasal wings, and the nasal catheter is used for clamping the nasal wings to play a role in fixing.
In addition, the application also provides an oxygen therapy instrument which comprises the nasal pipeline and can achieve the same technical effect.
Further, the oxygen therapy machine also comprises an air flow sensor and an oxygen flow sensor; as shown in fig. 2, a partial block diagram of the oxygen therapy apparatus is shown, in which black arrows indicate signal transmission and hollow tubes indicate air flow lines. The air flow sensor and the oxygen flow sensor are transmitted to the processor, the processor adjusts the rotating speed of the turbine according to the detection value of the air flow sensor, and the opening of the oxygen adjusting valve is adjusted according to the detection value of the oxygen flow sensor. The turbine is used for conveying air, the oxygen regulating valve is used for controlling the supply of pure oxygen, the normal supply amount is kept when inhaling, the rotating speed of the turbine is correspondingly reduced when exhaling, the opening degree of the oxygen regulating valve is reduced, the flow of the mixed gas is reduced, and the oxygen content is kept unchanged and is the same as the oxygen content when inhaling.
In addition, the oxygen therapy instrument also comprises a humidifier connected to the inlet end of the air supply pipe 1, so that the oxygen therapy instrument is humidified before being used by a patient, and the use comfort is improved. The nasal catheter sensor in fig. 2 is the various sensors of the present application disposed on the nasal catheter.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The nasal pipeline is used for an oxygen therapy instrument and comprises an air supply pipe (1) and two nasal inlet pipes (2), and is characterized by further comprising an air outlet return pipe (3) arranged at the periphery of the nasal inlet pipes (2), wherein an air outlet channel which is vertically communicated is arranged between the air outlet return pipe (3) and the nasal inlet pipes (2); a main sensor (4) for detecting whether gas passes through is arranged in an air outlet channel between the air inlet pipe (2) and the air outlet return pipe (3); the main sensor (4) is in signal connection with the processor, and the processor is used for reducing the gas flow when the main sensor (4) detects the signal of the gas passing through;
The main sensor (4) is a pressure sensor or a flow sensor, and the main sensor (4) is arranged on the inner walls of the two air outlet return pipes (3);
The nasal cannula also comprises a first auxiliary sensor (5) and a second auxiliary sensor (6) which are arranged between the two nasal cannulas (2), wherein the gas flowing through the nasal cannula (3) passes through the first auxiliary sensor (5), and the types of the first auxiliary sensor (5) and the second auxiliary sensor (6) are the same; the second auxiliary sensor (6) is arranged on the air supply pipe (1) and on the outer surface opposite to the nose inlet pipe (2);
the first auxiliary sensor (5) and the second auxiliary sensor (6) are temperature sensors, or oxygen concentration sensors, or humidity sensors;
The expired gas cannot be blown directly onto the second auxiliary sensor (6), the second auxiliary sensor (6) being used to detect a parameter of the surrounding environment; the gas flowing through the gas outlet return pipe (3) passes through the first auxiliary sensor (5), the first auxiliary sensor (5) detects the parameter of the exhaled gas, and the difference value of the parameter and the parameter is the variation caused by the exhaled gas.
2. Nasal tubing according to claim 1, characterized in that the side wall of the outlet-return tube (3) is circular arc-shaped, being in close contact with the inner side of the nostril; the top end of the air outlet return pipe (3) is lower than or equal to the nose inlet pipe (2).
3. Nasal cannula according to claim 2, characterized in that the line of the first auxiliary sensor (5) and the second auxiliary sensor (6) passes through the central axis of the aspiration tube (1), the distance between the first auxiliary sensor (5) and the second auxiliary sensor (6) and the two aspiration tubes (2) being equal.
4. A nasal duct according to claim 3, further comprising auxiliary nasal valves (7) provided on the air supply tube (1), the two auxiliary nasal valves (7) having arcuate surfaces and being located on both sides of the two nasal inlet tubes (2) for clamping the nasal wings.
5. An oxygen therapy device comprising a nasal cannula according to any one of claims 1 to 4.
6. The oxygen therapy apparatus of claim 5, further comprising an air flow sensor and an oxygen flow sensor; and the processor adjusts the rotating speed of the turbine according to the detection value of the air flow sensor, and adjusts the opening of the oxygen adjusting valve according to the detection value of the oxygen flow sensor.
7. The oxygen therapy apparatus according to claim 6, further comprising a humidifier connected to an inlet end of said air supply pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426922.2A CN107096104B (en) | 2017-06-08 | 2017-06-08 | Oxygen therapy instrument and nasal pipeline thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426922.2A CN107096104B (en) | 2017-06-08 | 2017-06-08 | Oxygen therapy instrument and nasal pipeline thereof |
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| CN107096104A CN107096104A (en) | 2017-08-29 |
| CN107096104B true CN107096104B (en) | 2024-05-24 |
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| CN201710426922.2A Active CN107096104B (en) | 2017-06-08 | 2017-06-08 | Oxygen therapy instrument and nasal pipeline thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126261B (en) * | 2017-12-11 | 2023-01-24 | 青岛大学附属医院 | Breathing device |
| CN109303959A (en) * | 2018-10-26 | 2019-02-05 | 北京怡和嘉业医疗科技股份有限公司 | The control method of ventilation therapy equipment and ventilation therapy equipment |
| CN112156297A (en) * | 2018-10-26 | 2021-01-01 | 北京怡和嘉业医疗科技股份有限公司 | Ventilation treatment equipment and control method |
| CN110960763A (en) * | 2019-09-16 | 2020-04-07 | 温州医科大学 | Medical oxygen inhalation flow detection method and device based on temperature difference measurement principle |
| CN115282427A (en) * | 2022-06-30 | 2022-11-04 | 天津大学 | High-flow humidification oxygen therapy system based on RT-Thread system |
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