CN212394919U - Novel test of two side nose resistances and nose flow device - Google Patents
Novel test of two side nose resistances and nose flow device Download PDFInfo
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- CN212394919U CN212394919U CN202021314445.4U CN202021314445U CN212394919U CN 212394919 U CN212394919 U CN 212394919U CN 202021314445 U CN202021314445 U CN 202021314445U CN 212394919 U CN212394919 U CN 212394919U
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Abstract
本实用新型公开了一种新型双侧鼻阻力与鼻流量测试装置，差压传感器一的两端分别与通气测压口一、通气测压口二相连；差压传感器二的两端分别与通气测压口三、通气测压口四相连；数据处理装置分别与差压传感器一、差压传感器二和差压传感器三电连接；通气测压口一、通气测压口二之间设置有呼吸流量传感器一；通气测压口三、通气测压口四之间设置有呼吸流量传感器二；呼吸流量传感器一和呼吸流量传感器二分别与通气管一、通气管二的另一端连通，且呼吸流量传感器一和呼吸流量传感器二后侧分别设置有气管阀一和气管阀二。本实用新型便捷卫生；操作简单，降低了传统检测通气管道对测试结果的影响；可同时检测双侧鼻腔阻力和鼻流量。
The utility model discloses a novel bilateral nasal resistance and nasal flow testing device. Two ends of a differential pressure sensor 1 are respectively connected with a ventilation pressure measuring port 1 and a ventilation pressure measuring port 2; The third pressure measuring port and the fourth ventilation pressure measuring port are connected; the data processing device is electrically connected with the first differential pressure sensor, the second differential pressure sensor and the third differential pressure sensor; a breathing pressure measuring port is arranged between the first ventilation pressure measuring port and the second ventilation pressure measuring port A flow sensor 1; a breathing flow sensor 2 is arranged between the ventilation pressure measuring port 3 and the ventilation pressure measuring port 4; A tracheal valve 1 and a tracheal valve 2 are respectively arranged on the rear sides of the first sensor and the second respiratory flow sensor. The utility model is convenient and hygienic; the operation is simple, the influence of the traditional detection ventilation pipeline on the test results is reduced; and the bilateral nasal cavity resistance and nasal flow can be simultaneously detected.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to two side nose resistances and nose flow testing arrangement.
Background
Nasal test is a method of detecting resistance to nasal flow. By nasometry, the pressure drop is measured for each nostril and associated nasal cavity (epipharynx) when inhaling and exhaling. These tests may be active or passive. In order to determine the resistance to fogging of the nostrils with their associated nasal cavities, it is necessary to determine the pressure difference that occurs from the nostril opening to the upper nasal edge (septum) simultaneously with the corresponding airflow when inhaling or exhaling.
Since the application of the nasal resistance detection technology in the last century, the nasal resistance diagnosis mainly depends on manual examination and analysis and nasal endoscopy examination, the examination is complex, the detection result is not accurate enough, along with the development of electronic technology, the existing nasal resistance instrument can objectively measure the nasal respiratory resistance, prompt the nasal obstruction part and the severity thereof, greatly help to diagnose the nasal threshold lesion, can be applied to the snore and nasal cavity stimulation experiments and the nasal ventilation research, can effectively evaluate the curative effect of surgery and drug treatment, and is an optimal instrument for measuring the nasal ventilation.
Through the analysis to relevant nose resistance detection product at home and abroad, discover present nose resistance detecting instrument, there are a great deal of problems, if detect complicacy, the patient detects and all must put into oral cavity or nasal cavity with sensor probe, there is the potential safety hazard in this operation, sensor probe contacts with tongue, saliva etc. in the oral cavity easily in the measurement process, factors such as oral cavity closure inseparable all can cause the measured data inaccurate, and children can not cooperate the doctor well moreover, detect children's nasal cavity condition of ventilating a bit of difficulty. Because conventional mask-type detection devices are relatively inefficient in their operation, there is a need for a nasal resistance device that is simple to detect, reliable in data, suitable for all ages, and simple to operate.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
An object of the utility model is to provide a two side nose resistance and nose flow testing arrangement to propose present nose resistance detecting instrument in solving above-mentioned background art, there are a great deal of problems, if detect complicacy, there is the potential safety hazard, measured data is inaccurate, and children can not cooperate the doctor well moreover, detects the problem of children's nasal cavity condition of ventilating difficulty a bit.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a bilateral nasal resistance and nasal flow testing device comprises a gas circuit connecting device, a pressure detecting device, a respiratory flow detecting device, a trachea conduction and blockage control device and a data processing device, wherein the gas circuit connecting device is connected with the respiratory flow detecting device, a front measuring hole and a rear measuring hole of the respiratory flow detecting device are connected with the pressure detecting device, the pressure detecting device is connected with the data processing device, wherein,
the air path connecting device comprises a first nasal olive head, a second nasal olive head, a first air pipe and a second air pipe, wherein the first nasal olive head is arranged at one end of the first air pipe, and the second nasal olive head is arranged at one end of the second air pipe; the respiratory flow detection device comprises a respiratory flow sensor I and a respiratory flow sensor II; the pressure detection device comprises a first differential pressure sensor, a second differential pressure sensor and a third differential pressure sensor; the air pipe conduction and blockage control device comprises an air pipe valve I and an air pipe valve II;
two ends of the first differential pressure sensor are respectively connected with the first ventilation pressure measuring port and the second ventilation pressure measuring port; two ends of the differential pressure sensor II are respectively connected with a ventilation pressure measuring port III and a ventilation pressure measuring port IV; the data processing device is electrically connected with the first differential pressure sensor, the second differential pressure sensor and the third differential pressure sensor respectively;
a first respiratory flow sensor is arranged between the first ventilation pressure measuring port and the second ventilation pressure measuring port; a second respiratory flow sensor is arranged between the third ventilation pressure measuring port and the fourth ventilation pressure measuring port; the first respiratory flow sensor and the second respiratory flow sensor are respectively communicated with the other ends of the first vent pipe and the second vent pipe, and a first air pipe valve and a second air pipe valve are respectively arranged on the rear sides of the first respiratory flow sensor and the second respiratory flow sensor.
As a further improvement, the joint of the first ventilating pipe, the second ventilating pipe and the first respiratory flow sensor and the second respiratory flow sensor is respectively provided with a first filtering gasket and a second filtering gasket.
As a further improvement of the utility model, the first filtering pad and the second filtering pad are disposable filtering pads.
As a further improvement, the testing arrangement when measuring the nasal resistance, survey two side nasal flows simultaneously, when detecting unilateral nasal resistance, unilateral nasal airflow flows through flow sensor, flow sensor record this respiratory cycle's flow value when surveying this velocity of flow to the nasal flow value who calculates in data processing device.
As the utility model discloses a further improvement, tracheal intercommunication and the jam of trachea valve two control pipes, the nasal cavity that automatic switch detected, the user need not to change nasal cavity and complicated switching flow can record two side nasal cavity resistances and nasal flow.
(III) advantageous effects
Compared with the prior art, after the technical scheme is adopted, the utility model discloses beneficial effect does:
1. the patient directly carries out nasal cavity resistance detection through the olive head of nose, need not equipment such as sensor probe, nose subsides, save material, risk-free, testing process is simple, check-out time is short, and can real-time detection, detection data are reliable, stable, and extremely inside sequential control need not the whole testing process of manual intervention simultaneously.
2. The design of the nasal olive head adopts various style design schemes, and the nasal plug heads with different sizes are suitable for people at all ages, so that convenience is provided for the nasal cavity detection of children, and the problem of inaccurate detection data caused by air leakage is solved;
3. the differential pressure sensor is integrated in the testing device, so that the interference of an external testing environment on an experimental result is avoided;
4. the tracheal valve can control the communication and blockage of the trachea, and the nasal cavity can be automatically switched and detected, so that the resistance and the nasal flow of the nasal cavity at two sides can be detected without replacing the nasal cavity and a complex switching process by a user; the method is simple to operate and easy to use in the perception of the tested person;
5. by adopting the new four-phase nasal resistance testing method, the defect of inaccurate fixed point testing is avoided, and the peak nasal resistance VR and the effective nasal resistance Reff are calculated to more accurately display the nasal resistance value.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a diagram of a method for testing peak resistance according to a curve of flow velocity V, pressure difference Δ P and time t in nasal cavity according to an embodiment of the present invention;
FIG. 3 is a diagram of a method for testing effective resistance according to a curve of nasal flow velocity V, differential pressure Δ P and time t provided by the present invention;
fig. 4 is a graph showing the resistance test of the four-phase nose according to the embodiment of the present invention;
description of reference numerals:
1. first nasal olive head; 2. a second nasal olive head; 3. a first vent pipe; 4. a second vent pipe; 5. a first filtering gasket; 6. a second filtering gasket; 7. a first ventilation pressure measuring port; 8. a third ventilation pressure measuring port; 9. a first respiratory flow sensor; 10. a second respiratory flow sensor; 11. a second ventilation pressure measuring port; 12. a fourth ventilation pressure measuring port; 13. a first air pipe valve; 14. a second air pipe valve; 15. a first differential pressure sensor; 16. a second differential pressure sensor; 17. a third differential pressure sensor; 18. a data processing apparatus.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: a novel bilateral nasal resistance and nasal flow testing device comprises a first nasal olive head 1, a second nasal olive head 2, a first air pipe 3, a second air pipe 4, a first filtering gasket 5, a second filtering gasket 6, a first ventilating pressure measuring port 7, a third ventilating pressure measuring port 8, a first respiratory flow sensor 9, a second respiratory flow sensor 10, a second ventilating pressure measuring port 11, a fourth ventilating pressure measuring port 12, a first tracheal valve 13, a second tracheal valve 14, a first differential pressure sensor 15, a second differential pressure sensor 16, a third differential pressure sensor 17 and a data processing device 18. The first nasal olive head 1 is arranged at one end of the first ventilating pipe 3, and the second nasal olive head 2 is arranged at one end of the second ventilating pipe 4; two ends of the first differential pressure sensor 15 are respectively connected with the first ventilation pressure measuring port 7 and the second ventilation pressure measuring port 11; two ends of the second differential pressure sensor 16 are respectively connected with a third ventilation pressure measuring port 8 and a fourth ventilation pressure measuring port 12; the data processing device 18 is electrically connected with the first differential pressure sensor 15, the second differential pressure sensor 16 and the third differential pressure sensor 17 respectively; a first respiratory flow sensor 9 is arranged between the first ventilation pressure measuring port 7 and the second ventilation pressure measuring port 11; a second respiratory flow sensor 10 is arranged between the third ventilation pressure measuring port 8 and the fourth ventilation pressure measuring port 12; the first respiratory flow sensor 9 and the second respiratory flow sensor 10 are respectively communicated with the other ends of the first ventilation pipe 3 and the second ventilation pipe 4, the connection positions of the first ventilation pipe 3 and the second ventilation pipe 4 with the first respiratory flow sensor 9 and the second respiratory flow sensor 10 are respectively provided with a first filter gasket 5 and a second filter gasket 6, and the rear sides of the first respiratory flow sensor 9 and the second respiratory flow sensor 10 are respectively provided with a first air pipe valve 13 and a second air pipe valve 14.
The first filter pad 5 and the second filter pad 6 are disposable filter pads designed to filter and trap a wide variety of dust, pollen and air polluting particles. Can effectively filter fine particles with the diameter of 0.1 micron, including tobacco smoke, bacteria, viruses and the like, is a disposable consumable product and cannot be cleaned, and has the advantages of simple replacement and prevention of cross infection of testers.
In this embodiment, the method for testing the bilateral nasal resistance and nasal flow testing device includes the following steps:
(1) before working, a test patient needs to sit still for 20min before diagnosis can be carried out, and the patient can only breathe through the nose in the diagnosis test process;
(2) respectively placing the first nasal olive head 1 and the second nasal olive head 2 of the gas circuit connecting device in the left nostril and the right nostril, and simultaneously starting the nasal resistance testing device to work;
(3) measuring the resistance value of the left nasal cavity:
firstly, when the resistance of the left nasal cavity is measured, the second tracheal valve 14 blocks the right nasal cavity air vent;
secondly, the air flow in the left nasal cavity passes through the olive head I1, is connected with the differential pressure sensor III 17 through the air pressure measuring port I7 along the air vent pipe I3 to measure the pressure difference P1；
Thirdly, the air pressure for blocking the air flow in the right nasal cavity passes through the second nasal olive head 2, along the second vent pipe 4, and is connected with the third differential pressure sensor 17 through the third vent pressure measuring port 8 to measure the pressure P2；
P measured by (c) and (c)1And P2Value according to Δ P ═ P1-P2；
The left airflow passes through the first respiratory flow sensor 9 and is connected with the first differential pressure sensor 15 through the second air pressure measuring port 11 to measure the nasal cavity pressure P3According to ΔP2＝P1-P3Thereby calculating the flow velocity V.
Further calculating the relation between the pressure difference and the flow, calculating the pressure difference value delta P, thereby calculating the respiratory airflow of the nasal cavity, and calculating the peak resistance VR and the effective resistance Reff of 3-5 respiratory cycles; and (4) according to the nasal resistance quantitative grading table, judging the degree of nasal obstruction of the patient. The right nasal test method is similar to the left.
The peak nasal resistance VR and the effective nasal resistance Reff in the above steps are further described by taking a breath as an example:
(1) nasal flow with a pressure difference of 150Pa is taken as the intersection point of the four phases of the respiratory cycle in FIG. 4. Marked "! "is the only point used as diagnostic information in classical rhinography, and is the residue of graphical evaluation used before introduction of computer rhinography after 1983. Until now, all information on the curve could not be evaluated graphically.
(2) Apical resistance (VR) on inspiration and expiration (fig. 2) and logarithmic apical resistance (LVR). VR is the linear quotient of differential pressure and flow at the highest nasal airflow. In pulmonary function testing, VR is associated with the peak blood flow resistance, which is determined when inspiratory flow is maximal, while VR in 4PR is measured during normal resting respiratory activity. At this point in a breathing cycle, the airflow is by definition stable, and the resistance is linearly defined by the relationship R ═ Δ P/V, since there is no influence of acceleration and deceleration. The vertex of the curve is the only mathematically correct point for this linear relationship. In contrast, the "150 Pa drag" parameter, which is still used by some researchers, must be objected to because it is physically and mathematically wrong and therefore an unacceptable calculation in an unusually accelerating or decelerating gas flow.
(3) Effective resistance (Reff) (fig. 3) and Log Effective Resistance (LER) for inhalation, exhalation and the whole respiratory cycle. The resistivity, which is used for a long time in electrical engineering, can be calculated by any one computer by summing all measurements over a given time, which is consistent with the calculation of the integral under the pressure and flow curves. Reff is calculated after averaging the 3-5 breathing curve. The information may be derived for inspiration, expiration phase or for the whole breath. Like VR, Reff is a measured parameter representing the energy of the whole breath; it replaces rough estimation and insufficient conclusions after one measurement point, which is not always measurable.
The methods for calculating the peak nasal resistance and the effective nasal resistance are given below:
by apex resistance, the apex resistance VR is meant the resistance of the nasal airflow at the point of maximum flow (differential pressure divided by flow) when breathing in (VRin) or out (VRex) at normal breath length or depth. The advantage of the peak resistance is that it is measured during the steady phase of nasal airflow, where there is no acceleration. As already indicated by Cole, this is the longest part of the respiratory cycle. This is when the pressure and flow curves run parallel to each other, reflecting a linear relationship. It follows that it is both physically and mathematically correct to calculate the resistance in the form of a linear quotient in this region. It can be measured on inspiration and expiration, but does not represent the entire breath.
The vertex resistance calculation formula is as follows: peak nasal resistance-pressure difference/maximum flow rate (calm breathing)
The term "effective resistance" (Reff) was introduced as effective resistance in clinical nasal measurements performed by Vogt and Hoffrichter in 1993. In electrical engineering, the "effective value" is calculated by using an equation for calculating the energy of the alternating current. The effective value is the integral of the measured value over the time interval of interest:
in this equation, W may be the differential pressure Δ P or the flow rate v. By dividing these effective values by each other, the effective resistance is obtained:
for example, in a four-phase nasal test, each mean breath contains 2000 flow and pressure differential measurements. These values are added and divided. The effective resistance may be calculated during the inspiratory portion of the breathing cycle, or during the expiratory and total breathing portions. (average of the measurement data directly to obtain effective nasal resistance)
By integrating the measurements over the time interval, the time element required to deliver the necessary air into the lungs is included as a necessary diagnosis. A factor of international capital movement. Not only is this important sensory compromised nasal breathing, whether the resistance of the nose is outside a comfortable level, but the time of breathing is within an audible range.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. A novel bilateral nasal resistance and nasal flow testing device comprises an air path connecting device, a pressure detecting device, a respiratory flow detecting device, an air pipe conduction and blockage control device and a data processing device, wherein the air path connecting device is connected with the respiratory flow detecting device; the respiratory flow detection device comprises a respiratory flow sensor I and a respiratory flow sensor II; the pressure detection device comprises a first differential pressure sensor, a second differential pressure sensor and a third differential pressure sensor; the air pipe conduction and blockage control device comprises an air pipe valve I and an air pipe valve II;
two ends of the first differential pressure sensor are respectively connected with the first ventilation pressure measuring port and the second ventilation pressure measuring port; two ends of the differential pressure sensor II are respectively connected with a ventilation pressure measuring port III and a ventilation pressure measuring port IV; the data processing device is electrically connected with the first differential pressure sensor, the second differential pressure sensor and the third differential pressure sensor respectively;
a first respiratory flow sensor is arranged between the first ventilation pressure measuring port and the second ventilation pressure measuring port; a second respiratory flow sensor is arranged between the third ventilation pressure measuring port and the fourth ventilation pressure measuring port; the first respiratory flow sensor and the second respiratory flow sensor are respectively communicated with the other ends of the first vent pipe and the second vent pipe, and a first air pipe valve and a second air pipe valve are respectively arranged on the rear sides of the first respiratory flow sensor and the second respiratory flow sensor.
2. The novel double-sided nasal resistance and nasal flow testing device according to claim 1, wherein a first filtering gasket and a second filtering gasket are respectively arranged at the joints of the first ventilating pipe and the second ventilating pipe with the first respiratory flow sensor and the second respiratory flow sensor.
3. The novel bilateral nasal resistance and nasal flow testing device of claim 2, wherein the first filter pad and the second filter pad are disposable filter pads.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111643086A (en) * | 2020-07-07 | 2020-09-11 | 安徽中科医疗器械有限公司 | Bilateral nasal resistance and nasal flow testing device and testing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111643086A (en) * | 2020-07-07 | 2020-09-11 | 安徽中科医疗器械有限公司 | Bilateral nasal resistance and nasal flow testing device and testing method |
| CN111643086B (en) * | 2020-07-07 | 2024-11-29 | 安徽中科医疗器械有限公司 | Bilateral nasal resistance and nasal flow testing device and testing method |
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Address after: 230041 Anhui Province Hefei City Baohe Economic Development Zone Liantong U Valley Medical and Health Industry Park Building 8 1-4 floors Patentee after: Anhui Zhongke Medical Equipment Co.,Ltd. Country or region after: China Address before: 230041, Anhui Province, Hefei City, Economic and Technological Development Zone, Furong Road No. 268, Hefei Innovation and Entrepreneurship Park, Building 13 (Chuang B), 4th Floor, Room 401 Patentee before: Anhui Zhongke Medical Equipment Co.,Ltd. Country or region before: China |