CN112704789A - High-frequency oscillation respiratory airflow generation method and respiratory support equipment - Google Patents
High-frequency oscillation respiratory airflow generation method and respiratory support equipment Download PDFInfo
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- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
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- A—HUMAN NECESSITIES
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- 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
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Abstract
The invention provides a high-frequency oscillation respiratory airflow generation method and respiratory support equipment, wherein in the high-frequency oscillation respiratory airflow generation method, a fan only needs to output constant airflow Q in a given time periodtotalThen the constant air flow is divided by a flow divider, one path of air flow is discharged in a vibration mode under the action of a flow discharge device, and the other path of air flow is a discharge air flow Qvent(ii) a The other path of airflow is output to the patient end through a pipeline, and the path of airflow is respiratory airflow QrepAccording to Qrep＝Qtotal‑Qvent obtaining the oscillating respiratory airflow with the opposite phase of the waveform of the discharge airflow; by the arrangement, the fan is only required to output constant airflow within a given time period, so that the control requirement on the fan driving controller is low, and the calculated amount is small; at the same time due to fan outputThe constant airflow reduces the influence of the fan on the oscillation airflow, and means that the output capacity of the oscillation airflow is improved.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a high-frequency oscillation respiratory airflow generation method and respiratory support equipment.
Background
The effectiveness of ventilators in treating respiratory diseases and the substantial reduction in patient mortality have received considerable attention from the health care sector and patient preference since their advent. In recent years, with the emergence of factors such as air pollution and population aging, patients suffering from respiratory diseases are increasing, and the demand of the market for ventilators is also increasing. Particularly, in 2019, the outbreak of infectious respiratory diseases such as novel coronavirus pneumonia (COVID-19) makes an important contribution in fighting an epidemic situation and saving a patient as an important medical device. However, some serious patients have difficulty in meeting their ventilation requirements even with high-flow and high-pressure ventilation.
Clinical experiments show that the high-frequency oscillation ventilation with low air pressure and low air flow (even lower than the ventilation volume of a respiratory physiological dead space) can not only effectively ventilate a patient, but also reduce the damage of the air pressure to the respiratory tract. The high frequency airflow of the current breathing machine with High Frequency Oscillation Ventilation (HFOV) function is generated by controlling a high power speaker or a reciprocating piston to generate oscillation airflow with certain frequency and amplitude, and the oscillation airflow is filled into a conventional ventilation pipeline. The amplitude and the amplitude of the output oscillating airflow are limited by the vibration of the loudspeaker membrane and the reciprocating stroke of the piston, and a large part of the output oscillating air pressure is absorbed by the oscillating airflow generating device and the breathing pipeline and cannot be effectively conveyed to the respiratory tract of a patient.
Traditionally, one patent application No. CN201280039840.8 discloses a high frequency oscillation ventilator that includes an oscillating piston control system and a mean airway pressure control system. The oscillating piston control system and the mean airway pressure control system are closed loop control systems. The oscillating piston control system is independent of the mean airway pressure control system. Although this patent achieves high frequency oscillation of the gas flow, it still uses an oscillating piston to obtain the oscillating gas pressure, and a large portion of the oscillating gas pressure output by the oscillating gas flow generating device and the breathing circuit is absorbed and cannot be effectively delivered to the respiratory tract of the patient.
Therefore, a need exists for a novel high-frequency oscillation respiratory support device, which can output oscillation airflow satisfying preset frequency and amplitude, and can effectively convey respiratory tract of a ventilated patient to achieve the purpose of ventilation treatment.
Disclosure of Invention
In order to solve the above problems, the present invention provides a high-frequency oscillation respiratory airflow generation method and respiratory support equipment, which can output oscillation airflow satisfying a preset frequency and amplitude, and can control the oscillation airflow to be effectively delivered to the respiratory tract of a ventilated patient, thereby achieving the purpose of ventilation therapy.
In order to achieve the above object, the present invention provides a method for generating a high-frequency oscillating respiratory airflow, comprising the steps of:
s1: in a certain time period, the fan driving controller controls the fan to output constant airflow Qtotal；
S2 constant air flow QtotalOne path of air flow passing through the flow divider is discharged in a vibration mode under the action of the flow discharge device, and the path of air flow is a vibration discharge air flow Qvent；
S3: constant gas flow QtotalThe other path of airflow after passing through the flow divider is output to the patient end through a pipeline, and the path of airflow is respiratory airflow QrepAccording to Qrep＝Qtotal-QventAnd obtaining the oscillating respiratory airflow with the opposite phase of the oscillating discharge airflow waveform.
As a further improvement of the above solution, in step S2, the bleed device includes a bleed valve and a bleed valve driving controller, and the bleed air is an oscillating bleed air with a preset frequency and a preset amplitude generated by the bleed valve driving controller controlling the bleed valve.
As a further improvement of the scheme, the drain valve is an electric control one-way proportional drain valve, and the drain valve driving controller controls the electric control by changing the control of the electric control one-way proportional drain valveThe opening degree O of the valve is controlled by the pressure V, thereby controlling the discharge air flow QventThe size of (2).
As a further improvement of the above solution, the oscillating airflow includes, but is not limited to, a sine waveform, a pulse waveform, or a triangle waveform, and correspondingly, the respiratory airflow is an oscillating respiratory airflow with a phase opposite to that of the oscillating airflow waveform.
As a further improvement of the above, in step S1, the predetermined time period is the inspiration time period TinOr expiration time period TexIn, fan drive controller control fan output inhale invariable air current Q of looksTotal is inhaledOr expiratory phase constant flow QTotal call。
The invention also provides a respiratory support device adopting the high-frequency oscillation respiratory airflow generation method, which comprises a fan, a fan drive controller and a splitter, wherein the fan drive controller is used for controlling the fan to output constant airflows with different flow values in different time periods; and the second air outlet of the flow divider is connected with a drainage device, and the drainage device is used for draining oscillating drainage airflow with preset frequency and preset amplitude.
As a further improvement of the above scheme, the drain device includes a drain valve and a drain valve driving controller, and the drain valve driving controller is configured to control the drain valve to generate an oscillating airflow with a preset frequency and a preset amplitude.
As a further improvement of the scheme, the drain valve is an electrically-controlled one-way proportional drain valve.
As a further improvement of the scheme, the drainage port of the drainage device is communicated with the atmosphere or connected with a recovery device.
As a further improvement of the scheme, the breathing pipeline comprises a safety throttle valve, a safety pressure limiting valve and a breathing support equipment output pipeline interface, and the safety throttle valve, the safety pressure limiting valve and the breathing support equipment output pipeline interface are sequentially connected from the airflow conveying direction of the first air outlet.
As a further improvement of the scheme, the flow divider is a three-way flow divider.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the high-frequency oscillation respiratory airflow generation method, the fan only needs to output constant airflow Q within a given time periodtotalThen the constant air flow is divided by a flow divider, one path of air flow is discharged in a vibration mode under the action of a flow discharge device, and the other path of air flow is a discharge air flow Qvent(ii) a The other path of airflow is output to the patient end through a pipeline, and the path of airflow is respiratory airflow QrepAccording to Qrep＝Qtotal-QventObtaining oscillating respiratory airflow with opposite phase to the waveform of the discharge airflow; according to the arrangement, firstly, the fan is only required to output constant airflow within a given time period, so that the control requirement on the fan driving controller is low, and the calculated amount is small; meanwhile, because the fan outputs constant airflow, the influence of the fan on the oscillating airflow is reduced, which means that the output capacity of the oscillating airflow is improved. Therefore, in order to obtain the oscillating respiratory airflow, only the bleeder device needs to be controlled to output the bleeder airflow with the preset frequency and the preset amplitude, so that the oscillating respiratory airflow with the opposite phase to the waveform of the bleeder airflow can be obtained, the computation amount of the control output of the whole device is small, the resource of the controller is saved, and the improvement of the performance of the respiratory support equipment is facilitated.
2. The respiratory support equipment comprises a fan, a fan driving controller and a splitter, wherein the fan driving controller is used for controlling the fan to output constant airflows with different flow values in different time periods; the second air outlet of the flow divider is connected with a flow discharge device, the flow discharge device is used for discharging oscillation discharge airflow with preset frequency and preset amplitude, the constant airflow is divided by the flow divider, one divided airflow is discharged with oscillation airflow with preset frequency and preset amplitude through the pressure relief device, the other divided airflow is conveyed to the end of a patient through a breathing pipeline to obtain respiratory airflow, according to the principle that the constant airflow is constant and unchanged, the respiratory airflow is obtained to be equal to the constant airflow minus the discharge oscillation airflow, and the respiratory oscillation airflow with the waveform phase opposite to that of the discharge oscillation airflow can be obtained, the arrangement structure is simple, the control is easy, and compared with the oscillation air pressure obtained by using an oscillation piston mode, the method for obtaining the respiratory airflow is convenient to operate and use, and can control the oscillation airflow to be effectively conveyed to the respiratory tract of the ventilated patient, the purpose of ventilation treatment is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic diagram of the connection of the elements of the respiratory support apparatus of the present invention;
FIG. 2 is a schematic representation of a fan output constant airflow waveform for the respiratory support apparatus of the present invention;
FIG. 3 is a schematic view of a bleed airflow waveform of the respiratory support apparatus of the present invention;
FIG. 4 is a schematic diagram of a patient respiratory airflow waveform of the respiratory support apparatus of the present invention;
the reference numbers are as follows:
1. an air source input port; 2. an air filter; 3. a fan; 4. a fan drive controller; 5. a flow divider; 6. a safety throttle valve; 7. a safety pressure limiting valve; 8. a pipeline interface; 9. an air intake pipeline; 10. a patient-side Y-port; 11. an exhalation line; 12. a drain valve; 13. a vent valve drive control.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators such as the first, second, upper, lower, left, right, front and rear … … in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention will be further described with reference to the following figures:
example 1:
the invention provides a high-frequency oscillation respiratory airflow generation method, which comprises the following steps:
s1: in a certain time period, the fan driving controller 4 controls the fan 3 to output a constant airflow Qtotal；
S2 constant air flow QtotalOne path of air flow passing through the flow divider 5 is discharged in a vibration mode under the action of the flow discharge device, and the path of air flow is a vibration discharge air flow Qvent；
S3: constant gas flow QtotalThe other path of airflow after passing through the flow divider 5 is output to the patient end through a pipeline, and the path of airflow is respiratory airflow QrepAccording to Qrep＝Qtotal-QventAnd obtaining the oscillating respiratory airflow with the opposite phase of the oscillating discharge airflow waveform. The invention is based on a total constant gas flow QtotalKeeping the flow rate of one of the split flows unchanged, and obtaining the high-frequency oscillation respiratory airflow according to the principle that the other split flow rate is correspondingly changed; and is arranged atIn this embodiment, the drainage device includes a drainage valve 12 and a drainage valve driving controller 13, the drainage flow is a shock drainage flow with a preset frequency and a preset amplitude, which is generated by the drainage valve driving controller 13 controlling the drainage valve 12, specifically, the drainage valve 12 is an electrically controlled one-way proportional drainage valve 12, the drainage valve driving controller 13 controls the opening O of the electrically controlled one-way proportional drainage valve 12 by changing the control voltage V of the electrically controlled one-way proportional drainage valve 12, so as to control the size of the drainage flow Qvent, and then the total constant flow Q output by the fan 3totalMinus bleed gas flow QventTo obtain the oscillating respiratory airflow Q delivered to the patient-side Y-interface 10rep. Respiratory airflow QrepThe calculation process of (2) is shown as the following formula:
wherein f (O) is a function of the valve opening of the electrically controlled one-way proportional drain valve 12, and O ═ g (v) represents a function of the valve opening and the control voltage of the drain valve 12, so that the drain flow value Q can be calculated according to the control voltage of the electrically controlled one-way proportional drain valve 12vent。
With the arrangement, firstly, the fan 3 is only required to output constant airflow within a given time period, so that the control requirement on the fan drive controller 4 is low, and the calculation amount is small; meanwhile, because the fan 3 outputs constant airflow, the influence of the fan 3 on the oscillating airflow is reduced, which means that the output capacity of the oscillating airflow is improved; in order to obtain the oscillating respiratory airflow, the oscillating respiratory airflow with the opposite phase to the waveform of the discharge airflow can be obtained only by controlling the discharge device to output the discharge airflow with the preset frequency and the preset amplitude, so that the whole equipment adopting the high-frequency oscillating respiratory airflow generation method has small control output operand, the resource of a controller is saved, and the performance of the respiratory support equipment is favorably improved.
As a preferred embodiment, the oscillating release airflow includes, but is not limited to, a sine waveform, a pulse waveform, or a triangular waveform, and correspondingly, the respiratory airflow is an oscillating respiratory airflow having a phase opposite to that of the oscillating release airflow waveform, and specifically, different oscillating release waveforms may be selected according to the condition of the patient.
In step S1, the predetermined time period is the inspiration time period TinOr expiration time period TexIn the interior, fan drive controller 4 controls fan 3 to output suction phase constant air flow QTotal is inhaledOr expiratory phase constant flow QTotal call. Referring to fig. 2 to 4, during the inspiration period TinIn the interior, the fan 3 outputs the inhalation airflow corresponding to the inhalation, and the inhalation airflow is in the exhalation time period TexThe fan 3 outputs expiratory airflow corresponding to inspiration; meanwhile, the discharge airflow output by the discharge device is controlled to be in the corresponding air suction time period TinThe discharge device discharges corresponding inspiration and discharge airflow during expiration time TexIn the device, the corresponding expiratory and bleeder air flow is discharged by the bleeder device, and correspondingly, the inspiration time T of the patient end can be obtainedinInternal inspiratory respiratory flow and during an expiratory time period TexThe expiratory breathing gas flow inside.
Example 2:
referring to fig. 1, the invention further provides a respiratory support device adopting the high-frequency oscillation respiratory airflow generation method, which includes a fan 3, a fan drive controller 4 and a splitter 5, wherein the fan drive controller 4 is used for controlling the fan 3 to output constant airflows with different flow values in different time periods, an air inlet of the splitter 5 is connected with an air outlet of the fan 3, a first air outlet of the splitter 5 is connected with a respiratory pipeline, and the respiratory pipeline is used for conveying respiratory airflows to a patient end; a second air outlet of the flow divider 5 is connected with a flow discharging device, the flow discharging device is used for discharging oscillation discharge air flow with preset frequency and preset amplitude, specifically, in the embodiment, an air source enters the respiratory support equipment through an air source input port 1 and then sequentially passes through an air flow filter and a fan 3, the air outlet of the fan 3 is connected with a three-way flow divider 5, one path of air flow passing through the three-way flow divider 5 is connected with an electric control one-way proportional discharge valve 12 to discharge air flow, the other path of air flow passing through the three-way flow divider 5 sequentially passes through a safety throttle valve 6, a safety pressure limiting valve 7, a pipeline interface 8, an inhalation pipeline 9 and a patient end Y-shaped interface 10 to be conveyed to a patient end, and the patient end Y-; the constant airflow is divided by the flow divider 5, one divided airflow is discharged into oscillating airflow with preset frequency and preset amplitude through the pressure relief device, the other divided airflow is conveyed to the end of a patient through a breathing pipeline, namely respiratory airflow, according to the principle that the constant airflow is constant, the respiratory airflow is obtained by subtracting the discharged oscillating airflow from the constant airflow, and the respiratory oscillating airflow with the waveform phase opposite to that of the discharged oscillating airflow can be obtained.
As a preferred embodiment, the bleed device includes an electrically controlled one-way proportional bleed valve 12 and a bleed valve drive controller 13, and the bleed valve drive controller 13 is configured to control the electrically controlled one-way proportional bleed valve 12 to generate an oscillating airflow with a preset frequency and a preset amplitude.
In a preferred embodiment, the drain port of the drain valve 12 is connected to the atmosphere or a recovery device is connected to the drain port, and in this embodiment, the drain port of the drain valve 12 is connected to the atmosphere.
The foregoing is a detailed description of the invention, and specific examples are used herein to explain the principles and implementations of the invention, the above description being merely intended to facilitate an understanding of the principles and core concepts of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A method for generating a high-frequency oscillating respiratory airflow, comprising the steps of:
s1: in a certain time period, the fan driving controller controls the fan to output constant airflow Qtotal；
S2 constant air flowQtotalOne path of air flow passing through the flow divider is discharged in a vibration mode under the action of the flow discharge device, and the path of air flow is a vibration discharge air flow Qvent；
S3: constant gas flow QtotalThe other path of airflow after passing through the flow divider is output to the patient end through a pipeline, and the path of airflow is respiratory airflow QrepAccording to Qrep＝Qtotal-QventAnd obtaining the oscillating respiratory airflow with the opposite phase of the oscillating discharge airflow waveform.
2. The method for generating high-frequency oscillating respiratory airflow according to claim 1, wherein in step S2, the vent device comprises a vent valve and a vent valve driving controller, and the vent flow is generated by the vent valve driving controller controlling the vent valve to generate oscillating vent flow with a preset frequency and a preset amplitude.
3. A method as claimed in claim 2, wherein the bleed valve is an electrically controlled one-way proportional bleed valve, and the bleed valve driving controller controls the opening O of the electrically controlled one-way proportional bleed valve by varying the control voltage V of the valve, thereby controlling the bleed flow QventThe size of (2).
4. A method according to any one of claims 1-3, wherein the oscillatory bleed airflow includes but is not limited to a sine waveform, a pulse waveform, or a triangle waveform, and the respiratory airflow is correspondingly in phase opposition to the oscillatory bleed airflow waveform.
5. A respiratory support device adopting the high-frequency oscillation respiratory airflow generation method of any one of claims 1 to 4, characterized by comprising a blower, a blower driving controller and a splitter, wherein the blower driving controller is used for controlling the blower to output constant airflows with different flow values in different time periods, an air inlet of the splitter is connected with an air outlet of the blower, a first air outlet of the splitter is connected with a respiratory pipeline, and the respiratory pipeline is used for delivering respiratory airflows to a patient end; and the second air outlet of the flow divider is connected with a drainage device, and the drainage device is used for draining oscillating drainage airflow with preset frequency and preset amplitude.
6. A respiratory support apparatus according to claim 5, wherein the drain device includes a drain valve and a drain valve drive controller configured to control the drain valve to produce an oscillating airflow of a predetermined frequency and a predetermined magnitude.
7. The respiratory support apparatus according to claim 6, wherein the drain valve is an electrically controlled one-way proportional drain valve.
8. A respiratory support apparatus according to any one of claims 5-7, wherein the vent port of the venting means is vented to atmosphere or a recovery means is connected.
9. The respiratory support apparatus according to any one of claims 5-7, wherein the respiratory conduit comprises a safety throttle valve, a safety pressure limiting valve, and a respiratory support apparatus output conduit interface, and the safety throttle valve, the safety pressure limiting valve, and the respiratory support apparatus output conduit interface are connected in sequence from the first air outlet in the air flow conveying direction.
10. A respiratory support apparatus according to any one of claims 5-7, wherein the flow diverter is a three-way flow diverter.
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| CN202011596781.7A CN112704789B (en) | 2020-12-29 | 2020-12-29 | High-frequency oscillation respiratory airflow generation method and respiratory support equipment |
| PCT/CN2021/117961 WO2022142468A1 (en) | 2020-12-29 | 2021-09-13 | High-frequency oscillation respiratory airflow generation method and respiratory support device |
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| CN202011596781.7A CN112704789B (en) | 2020-12-29 | 2020-12-29 | High-frequency oscillation respiratory airflow generation method and respiratory support equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142468A1 (en) * | 2020-12-29 | 2022-07-07 | 湖南明康中锦医疗科技发展有限公司 | High-frequency oscillation respiratory airflow generation method and respiratory support device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1282313A (en) * | 1968-09-16 | 1972-07-19 | Georges Beaumont | Respirator device |
| CN1045036A (en) * | 1989-02-27 | 1990-09-05 | 重庆大学 | High-frequency oscillation breath machine |
| JP2001170178A (en) * | 1999-12-21 | 2001-06-26 | Suzuki Motor Corp | High frequency respirator |
| FR2887776A1 (en) * | 2005-06-29 | 2007-01-05 | Taema Sa | Ventilator for generating inspiratory gas flow to patient, has pneumatic detection unit connected to pneumatic actuators and detecting inspiratory effort of patient for allowing generation of anticipated inspiratory flow |
| CN103751897A (en) * | 2014-01-10 | 2014-04-30 | 东华大学 | Device and method for generating high-frequency sinusoidal airflow for ventilator |
| CN203829278U (en) * | 2013-10-24 | 2014-09-17 | 皇家飞利浦有限公司 | Device for assisting in cleaning out respiratory tract secreta |
| US20140290659A1 (en) * | 2011-12-14 | 2014-10-02 | Koninklijke Philips N.V. | Reversing valve and high frequency oscillation airflow generator |
| CN104640590A (en) * | 2012-09-21 | 2015-05-20 | 马奎特紧急护理公司 | Valve controlled high frequency oscillatory ventilation |
| CN106237467A (en) * | 2016-08-26 | 2016-12-21 | 深圳市安保科技有限公司 | The vent method of a kind of breathing apparatus and device |
| CN106267493A (en) * | 2016-08-26 | 2017-01-04 | 苏州凯迪泰医学科技有限公司 | Medical breathing machine and continuously measuring and calculating airway resistance and the method for compliance |
| US20190151581A1 (en) * | 2017-11-03 | 2019-05-23 | Loewenstein Medical Technology S.A. | Device for respiratory therapy |
| CN110464951A (en) * | 2019-08-29 | 2019-11-19 | 宁波戴维医疗器械股份有限公司 | A kind of high frequency respirator system and control method of ventilating |
| US20200157090A1 (en) * | 2014-11-20 | 2020-05-21 | Koninklijke Philips N.V. | Non-invasive ventilation with high frequency oscillations |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011866A (en) * | 1965-02-05 | 1977-03-15 | Automatic Breathing Apparatus Co., Inc. | Electronically controlled pulmonary ventilator |
| NZ588682A (en) * | 2008-04-10 | 2012-06-29 | Seattle Childrens Hospital Dba Seattle Childrens Res Inst | A pressure regulating breathing assistance apparatus for CPAP in infants |
| US20130042868A1 (en) * | 2011-08-17 | 2013-02-21 | Yong Liu | High frequency oscillation ventilator control system |
| AU2016206534A1 (en) * | 2015-01-16 | 2017-07-13 | The Board Of Trustees Of Western Michigan University | Dual pressure respiratory assistance device |
| US10004872B1 (en) * | 2015-03-06 | 2018-06-26 | D R Burton Healthcare, Llc | Positive expiratory pressure device having an oscillating valve |
| CN206325088U (en) * | 2016-08-26 | 2017-07-14 | 深圳市安保科技有限公司 | A kind of closed loop aerating system and lung ventilator |
| CN112704789B (en) * | 2020-12-29 | 2023-06-13 | 湖南明康中锦医疗科技发展有限公司 | High-frequency oscillation respiratory airflow generation method and respiratory support equipment |
-
2020
- 2020-12-29 CN CN202011596781.7A patent/CN112704789B/en active Active
-
2021
- 2021-09-13 WO PCT/CN2021/117961 patent/WO2022142468A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1282313A (en) * | 1968-09-16 | 1972-07-19 | Georges Beaumont | Respirator device |
| CN1045036A (en) * | 1989-02-27 | 1990-09-05 | 重庆大学 | High-frequency oscillation breath machine |
| JP2001170178A (en) * | 1999-12-21 | 2001-06-26 | Suzuki Motor Corp | High frequency respirator |
| FR2887776A1 (en) * | 2005-06-29 | 2007-01-05 | Taema Sa | Ventilator for generating inspiratory gas flow to patient, has pneumatic detection unit connected to pneumatic actuators and detecting inspiratory effort of patient for allowing generation of anticipated inspiratory flow |
| US20140290659A1 (en) * | 2011-12-14 | 2014-10-02 | Koninklijke Philips N.V. | Reversing valve and high frequency oscillation airflow generator |
| CN104640590A (en) * | 2012-09-21 | 2015-05-20 | 马奎特紧急护理公司 | Valve controlled high frequency oscillatory ventilation |
| CN203829278U (en) * | 2013-10-24 | 2014-09-17 | 皇家飞利浦有限公司 | Device for assisting in cleaning out respiratory tract secreta |
| CN103751897A (en) * | 2014-01-10 | 2014-04-30 | 东华大学 | Device and method for generating high-frequency sinusoidal airflow for ventilator |
| US20200157090A1 (en) * | 2014-11-20 | 2020-05-21 | Koninklijke Philips N.V. | Non-invasive ventilation with high frequency oscillations |
| CN106237467A (en) * | 2016-08-26 | 2016-12-21 | 深圳市安保科技有限公司 | The vent method of a kind of breathing apparatus and device |
| CN106267493A (en) * | 2016-08-26 | 2017-01-04 | 苏州凯迪泰医学科技有限公司 | Medical breathing machine and continuously measuring and calculating airway resistance and the method for compliance |
| US20190151581A1 (en) * | 2017-11-03 | 2019-05-23 | Loewenstein Medical Technology S.A. | Device for respiratory therapy |
| CN110464951A (en) * | 2019-08-29 | 2019-11-19 | 宁波戴维医疗器械股份有限公司 | A kind of high frequency respirator system and control method of ventilating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142468A1 (en) * | 2020-12-29 | 2022-07-07 | 湖南明康中锦医疗科技发展有限公司 | High-frequency oscillation respiratory airflow generation method and respiratory support device |
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| CN112704789B (en) | 2023-06-13 |
| WO2022142468A1 (en) | 2022-07-07 |
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