WO2023075649A1 - Nasal breathing testing device - Google Patents
Nasal breathing testing device Download PDFInfo
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- WO2023075649A1 WO2023075649A1 PCT/SA2021/050023 SA2021050023W WO2023075649A1 WO 2023075649 A1 WO2023075649 A1 WO 2023075649A1 SA 2021050023 W SA2021050023 W SA 2021050023W WO 2023075649 A1 WO2023075649 A1 WO 2023075649A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air flow
- sensor
- nasal
- air
- pressure
- Prior art date
Links
- 230000010352 nasal breathing Effects 0.000 title abstract description 16
- 238000012360 testing method Methods 0.000 title description 9
- 210000002345 respiratory system Anatomy 0.000 claims abstract description 12
- 238000003745 diagnosis Methods 0.000 claims description 8
- 238000002591 computed tomography Methods 0.000 claims 3
- 231100000957 no side effect Toxicity 0.000 claims 1
- 238000013125 spirometry Methods 0.000 claims 1
- 230000002685 pulmonary effect Effects 0.000 abstract 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 10
- 230000029058 respiratory gaseous exchange Effects 0.000 description 8
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 6
- 210000000214 mouth Anatomy 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 210000003928 nasal cavity Anatomy 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000008786 sensory perception of smell Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0803—Recording apparatus specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/087—Measuring breath flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4005—Detecting, measuring or recording for evaluating the nervous system for evaluating the sensory system
- A61B5/4011—Evaluating olfaction, i.e. sense of smell
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
- A61B5/6819—Nose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6814—Head
- A61B5/682—Mouth, e.g., oral cavity; tongue; Lips; Teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
Definitions
- the invention relates to medicine, and to otorhinolaryngology, and can be used in the diagnosis of diseases of the upper respiratory tract.
- Known rhinopneumometer (Pat. Of Ukraine No 50463A, IPC A61V5 / 08, bul. No 10, 2002), consisting of a housing (black box), an air intake tube in the form of a capillary, a pressure sensor, and a recording device.
- the air intake tube is made straight, has a length and diameter of not more than 40 mm and 0.8 mm, respectively, and is rigidly connected to the pressure sensor to which the signal amplifier is connected.
- the closest to the set of features is a device for determining the air conductivity of the nose (AS SRSR No 1076084 A, MPK A61V5 / 08, 1984, bul. No 8), containing a series-connected breathing mask, a sensor of the difference in air flow pressure and mouthpiece, as well as a pressure measuring unit, the inputs of which are connected to the pressure difference sensor, an air flow rate sensor located at the respiratory inlet of the mask, and a two-coordinate recording device, the inputs of which are connected to the pressure measuring unit and air flow sensor.
- the assessment of the aerodynamic drag of the upper respiratory tract can be estimated only approximately, as it does not measure the flow of air passing through the nasal cavity, which reduces the accuracy and efficiency of diagnosis of nasal breathing disorders.
- the invention is based on the task of creating a device for testing nasal breathing, which would allow the use of air flow sensor, check valve and additional air pressure differential pressure sensors to increase the accuracy of measurement of aerodynamic parameters of the upper respiratory tract and increase the efficiency of diagnosis of nasal breathing disorders.
- the device for testing nasal breathing which contains a series-connected breathing mask, air pressure difference sensor and mouthpiece, according to the invention, a check valve, air flow pressure difference sensors, air flow sensor, analog -digital transducer and PC, with non-return valve, air flow pressure difference sensor and air flow sensor connected to the air vent of the breathing mask, the outputs of the air flow pressure difference sensor and the air flow sensor are connected to the first, second, third and the fourth inputs of the analog-to-digital converter, the first output and the fifth input of which are respectively connected to the input and output of the PC.
- the device for testing nasal breathing comprises a series-connected breathing mask 1, a sensor 2 of the difference in air flow pressure and a mouthpiece 3, while the check valve 4, the sensors 5, 6 of the difference in air flow pressure and the sensor 7 air flow are connected to the air vent mask 1, the outputs of the sensors 2, 5, 6 of the pressure difference of the air flow and the air flow sensor 7 are respectively connected to the first, second, third and fourth inputs of the analog-to-digital converter 8, the first output and fifth input of which are connected respectively with PC input and output 9.
- the device works as follows: the breathing mask 1 (see and 2.) tightly (hermetically) put on the patient's face, the mouthpiece 3 is installed in the oral cavity.
- Differential pressure sensors Motorola MPX5010DP are used as sensors 2, 5 and 6 of a difference of pressure of a stream of air.
- Positive differential air inlets of air flow pressure sensors 2 and 5 and negative differential air inlet of air flow pressure sensor 6 are connected to the external air opening of the breathing mask 1 through the tube, while the negative differential air inlet of the sensor 2 is connected to the mouthpiece 3.
- air flow pressure difference measures the difference between the pressure at the entrance to the nasal passages and the pressure in the oral cavity during the inhalation cycle.
- the air flow pressure difference sensors 5 and 6 are indicators of the exhalation and inspiration cycles, respectively.
- the sensor 7 air flow connected to the outer air hole of the breathing mask 1, allows you to measure the air flow during the inspiratory cycle (in l / s) and implemented as a diffuser with an inlet diameter of approximately 6 ⁇ 8 mm, to which is connected a negative differential air inlet differential pressure sensor MPX5010DP. Also, to the outer air hole of the breathing mask 1 is connected a check valve 4, the use of which allows the patient to facilitate the exhalation cycle with high aerodynamic resistance of the sensor 7 air flow.
- the electrical outputs of the sensors 2, 5 and 6, the pressure difference between the air flow and the air flow sensor 7 are connected to the inputs of the analog-to-digital converter 8 LCard E-14-140, in which the output of digital 14-bit signals transfer via USB to PC 9 in asynchronous mode.
- the PC 9 performs data analysis to determine the relationship between the pressure difference at the entrance to the nasal passages and the pressure in the oral cavity during the cycle of inspiration from air flow :
- the values of aerodynamic drag R of the upper respiratory tract ranged from 150 Pa / (l / s) to 350 Pa / (l / s) (a total of 76 patients with various forms were examined nasal breathing disorders and without disorders).
- the value of aerodynamic drag R increased with complicated nasal breathing.
- the use of this device allows to objectively assess the aerodynamic properties of the nasal cavity and increase the efficiency of diagnosis of diseases of the upper respiratory tract.
- the exact influence of the type of pathology of the upper respiratory tract on the characteristics of their aerodynamic drag requires further research.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Physiology (AREA)
- Pulmonology (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Otolaryngology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Dentistry (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Nasal pulmonary manometer, consisting of housing, capillary intake tube, pressure sensor and recording device. In this case, the air intake pipe is straight, with a length and diameter of no more than 40 mm and 0.8 mm, respectively, and precisely and tightly connected to the pressure sensor to which the signal amplifier is connected. However, in this rhinometry, it is impossible to measure air velocity and flow and determine the aerodynamic resistance of the upper respiratory tract, which reduces the effectiveness of diagnosing nasal breathing disorders.
Description
The invention relates to medicine, and to otorhinolaryngology, and can be used in the diagnosis of diseases of the upper respiratory tract.
It is a diagnostic device to measure the efficiency and nature of the human respiratory system and its disorders and to test the sense of smell.
Known rhinopneumometer (Pat. Of Ukraine № 50463A, IPC A61V5 / 08, bul. № 10, 2002), consisting of a housing (black box), an air intake tube in the form of a capillary, a pressure sensor, and a recording device. In this case, the air intake tube is made straight, has a length and diameter of not more than 40 mm and 0.8 mm, respectively, and is rigidly connected to the pressure sensor to which the signal amplifier is connected.
However, in this rhinopneumometer it is impossible to measure the speed and flow of air and determine the aerodynamic resistance of the upper respiratory tract, which reduces the effectiveness of the diagnosis of nasal breathing disorders.
The closest to the set of features is a device for determining the air conductivity of the nose (AS SRSR № 1076084 A, MPK A61V5 / 08, 1984, bul. № 8), containing a series-connected breathing mask, a sensor of the difference in air flow pressure and mouthpiece, as well as a pressure measuring unit, the inputs of which are connected to the pressure difference sensor, an air flow rate sensor located at the respiratory inlet of the mask, and a two-coordinate recording device, the inputs of which are connected to the pressure measuring unit and air flow sensor.
However, in this device, the assessment of the aerodynamic drag of the upper respiratory tract can be estimated only approximately, as it does not measure the flow of air passing through the nasal cavity, which reduces the accuracy and efficiency of diagnosis of nasal breathing disorders.
The invention is based on the task of creating a device for testing nasal breathing, which would allow the use of air flow sensor, check valve and additional air pressure differential pressure sensors to increase the accuracy of measurement of aerodynamic parameters of the upper respiratory tract and increase the efficiency of diagnosis of nasal breathing disorders.
This technical result can be achieved if in the device for testing nasal breathing, which contains a series-connected breathing mask, air pressure difference sensor and mouthpiece, according to the invention, a check valve, air flow pressure difference sensors, air flow sensor, analog -digital transducer and PC, with non-return valve, air flow pressure difference sensor and air flow sensor connected to the air vent of the breathing mask, the outputs of the air flow pressure difference sensor and the air flow sensor are connected to the first, second, third and the fourth inputs of the analog-to-digital converter, the first output and the fifth input of which are respectively connected to the input and output of the PC.
Thus, due to the use in the device for testing nasal breathing air flow sensor, check valve and additional air pressure differential pressure sensors, the accuracy of measuring the aerodynamic parameters of the upper respiratory tract and increase the efficiency of diagnosis of nasal breathing disorders.
In shows a block diagram of a device for testing nasal breathing; in is a photographic image of a prototype device for testing nasal breathing.
The device for testing nasal breathing comprises a series-connected breathing mask 1, a sensor 2 of the difference in air flow pressure and a mouthpiece 3, while the check valve 4, the sensors 5, 6 of the difference in air flow pressure and the sensor 7 air flow are connected to the air vent mask 1, the outputs of the sensors 2, 5, 6 of the pressure difference of the air flow and the air flow sensor 7 are respectively connected to the first, second, third and fourth inputs of the analog-to-digital converter 8, the first output and fifth input of which are connected respectively with PC input and output 9. The device works as follows: the breathing mask 1 (see and 2.) tightly (hermetically) put on the patient's face, the mouthpiece 3 is installed in the oral cavity. Differential pressure sensors Motorola MPX5010DP are used as sensors 2, 5 and 6 of a difference of pressure of a stream of air. Positive differential air inlets of air flow pressure sensors 2 and 5 and negative differential air inlet of air flow pressure sensor 6 are connected to the external air opening of the breathing mask 1 through the tube, while the negative differential air inlet of the sensor 2 is connected to the mouthpiece 3.
Thus 2 air flow pressure difference measures the difference between the pressure at the entrance to the nasal passages and the pressure in the oral cavity during the inhalation cycle. The air flow pressure difference sensors 5 and 6 are indicators of the exhalation and inspiration cycles, respectively. The sensor 7 air flow, connected to the outer air hole of the breathing mask 1, allows you to measure the air flow during the inspiratory cycle (in l / s) and implemented as a diffuser with an inlet diameter of approximately 6 ÷ 8 mm, to which is connected a negative differential air inlet differential pressure sensor MPX5010DP. Also, to the outer air hole of the breathing mask 1 is connected a check valve 4, the use of which allows the patient to facilitate the exhalation cycle with high aerodynamic resistance of the sensor 7 air flow. The electrical outputs of the sensors 2, 5 and 6, the pressure difference between the air flow and the air flow sensor 7 are connected to the inputs of the analog-to-digital converter 8 LCard E-14-140, in which the output of digital 14-bit signals transfer via USB to PC 9 in asynchronous mode. The PC 9 performs data analysis to determine the relationship between the pressure difference 
at the entrance to the nasal passages and the pressure in the oral cavity during the cycle of inspiration from air flow
:
and determining the aerodynamic drag of the upper respiratory tract:
(
)
When using this device for the diagnosis of nasal breathing disorders in the otorhinolaryngological department of the Kharkiv Regional Clinical Hospital, the values of aerodynamic drag R of the upper respiratory tract ranged from 150 Pa / (l / s) to 350 Pa / (l / s) (a total of 76 patients with various forms were examined nasal breathing disorders and without disorders). The value of aerodynamic drag R increased with complicated nasal breathing.
The use of this device allows to objectively assess the aerodynamic properties of the nasal cavity and increase the efficiency of diagnosis of diseases of the upper respiratory tract. The exact influence of the type of pathology of the upper respiratory tract on the characteristics of their aerodynamic drag requires further research.
Claims (3)
- As a diagnostic device for the sinus and upper respiratory tract, the best options were CT scans, but the obstacle was that it was too dangerous for patients to have CT scans frequently so we developed this device that can safely repeat the diagnosis at any time and without any risk.
- This diagnostic combination between the results of CT scans and nasal spirometry is the first of its kind and has proven its effectiveness, success, and accuracy of results.
- There are no side effects of using the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020227039331A KR102591250B1 (en) | 2021-10-29 | 2021-11-20 | nasal breathing test device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SA121430282 | 2021-10-29 | ||
| SA121430282 | 2021-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023075649A1 true WO2023075649A1 (en) | 2023-05-04 |
Family
ID=86158339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SA2021/050023 WO2023075649A1 (en) | 2021-10-29 | 2021-11-20 | Nasal breathing testing device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR102591250B1 (en) |
| WO (1) | WO2023075649A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA50463A (en) | 2002-01-17 | 2002-10-15 | Національний Медичний Університет Ім О.О. Богомольця | Rhinopneumometer |
| US20160120441A1 (en) * | 2013-11-01 | 2016-05-05 | Xiaoran Zhu | Portable Device for Direct Nasal Respiration Measurement |
| US20190038858A1 (en) * | 2012-03-02 | 2019-02-07 | Breathe Technologies, Inc. | Dual pressure sensor continuous positive airway pressure (cpap) therapy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU756994B2 (en) * | 1998-07-29 | 2003-01-30 | Rhinometrics A/S | Apparatus and methods for rhinomanometry |
| KR102022181B1 (en) * | 2018-02-21 | 2019-09-17 | 서울과학기술대학교 산학협력단 | Electric dustproof mask with differential pressure sensor |
| KR20220024026A (en) * | 2019-05-15 | 2022-03-03 | 앱센트 메디컬 엘티디. | Devices and methods for selectively providing odor stimulation |
-
2021
- 2021-11-20 KR KR1020227039331A patent/KR102591250B1/en active IP Right Grant
- 2021-11-20 WO PCT/SA2021/050023 patent/WO2023075649A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA50463A (en) | 2002-01-17 | 2002-10-15 | Національний Медичний Університет Ім О.О. Богомольця | Rhinopneumometer |
| US20190038858A1 (en) * | 2012-03-02 | 2019-02-07 | Breathe Technologies, Inc. | Dual pressure sensor continuous positive airway pressure (cpap) therapy |
| US20160120441A1 (en) * | 2013-11-01 | 2016-05-05 | Xiaoran Zhu | Portable Device for Direct Nasal Respiration Measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102591250B1 (en) | 2023-10-19 |
| KR20230062475A (en) | 2023-05-09 |
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