阅读说明：本技术 一种基于电阻应变式传感器的便携式鼻呼吸状态监测装置 (Portable nasal breathing state monitoring device based on resistance strain sensor ) 是由 刘偲奇 于 2020-06-02 设计创作，主要内容包括：一种基于电阻应变式传感器的便携式鼻呼吸状态监测装置,属于呼吸监测技术领域。本发明包括电阻式应变传感器、软鼻夹、动态采集系统、监测主机及报警器；监测主机上集成有控制器、扬声器、显示器和电源模块；电阻式应变传感器与软鼻夹一外侧面的前端可拆卸固定连接,电阻式应变传感器通过导线与动态采集系统连接,动态采集系统通过导线与控制器连接,控制器分别连接显示器、扬声器和报警器,电源模块为监测主机、报警器及动态采集系统供电。本发明结构简单,使用方便,且软鼻夹可为一次性用品,通过软鼻夹上的可拆卸电阻式应变传感器,使得本装置在更换新的软鼻夹后可重复性使用,从而使本装置不会出现交叉感染的情况,提高了本装置使用的安全性。(A portable nose breathing state monitoring device based on a resistance strain sensor belongs to the technical field of breathing monitoring. The invention comprises a resistance-type strain sensor, a soft nose clip, a dynamic acquisition system, a monitoring host and an alarm; the monitoring host is integrated with a controller, a loudspeaker, a display and a power supply module; fixed connection can be dismantled with the front end of soft nose clamp lateral surface to resistance-type strain sensor, and resistance-type strain sensor passes through the wire and is connected with dynamic acquisition system, and dynamic acquisition system passes through the wire and is connected with the controller, and display, speaker and alarm are connected respectively to the controller, and power module is monitoring host computer, alarm and the power supply of dynamic acquisition system. The soft nose clip is simple in structure and convenient to use, the soft nose clip can be a disposable product, and the device can be repeatedly used after a new soft nose clip is replaced through the detachable resistance-type strain sensor on the soft nose clip, so that the device cannot be subjected to cross infection, and the use safety of the device is improved.)

1. The utility model provides a portable nose breathing state monitoring devices based on resistance strain transducer which characterized in that: the device comprises a resistance-type strain sensor (1), a soft nose clip (2), a dynamic acquisition system (5), a monitoring host (6) and an alarm (11); the monitoring host (6) is integrated with a controller (7), a loudspeaker (8), a display (9) and a power module (14); fixed connection can be dismantled with the front end of soft nose clamp (2) a lateral surface in resistance-type strain sensor (1), and resistance-type strain sensor (1) passes through wire (4) and is connected with dynamic acquisition system (5), dynamic acquisition system (5) pass through wire (4) and are connected with controller (7), controller (7) are connected respectively display (9), speaker (8) and alarm (11), power module (14) are monitoring host computer (6), alarm (11) and dynamic acquisition system (5) power supply.

2. The portable nasal breathing state monitoring device based on the resistance strain gauge sensor as claimed in claim 1, wherein:

the resistance type strain sensor (1) is used for transmitting an electric signal generated by nasal cavity temperature change to the dynamic acquisition system (5) through the lead (4);

the dynamic acquisition system (5) is used for storing electric signals generated by nasal cavity temperature change and information processed by the controller (7) and is extracted by the controller (7) at any time;

the controller (7) is used for processing and displaying a respiration volume and respiration frequency curve according to an electric signal generated by storing the temperature change of the nasal cavity and received from the dynamic acquisition system (5) and displaying the curve on the display (9), inverting the correlation between respiration and heartbeat according to the temperature change of a patient after operation through Pearson correlation coefficient processing and monitoring, and giving a threshold value for early warning; the pearson correlation coefficient formula is as follows:

wherein: ρ represents the correlation result, cov represents the covariance, σ represents the standard deviation, X and Y represent the observed values of respiration and heartbeat, respectively, μ X and μ Y represent the observed mean values of respiration and heartbeat, respectively, and E represents the mean value of the product after calculation of the sign, i.e., the covariance;

developing a visual man-machine interaction interface based on a Labwindows/CVI interactive C language development platform, and outputting a respiration volume and a respiration frequency curve of a patient on a display (9);

the display (9) is used for displaying the respiratory volume and the respiratory frequency curve of the patient;

the loudspeaker (8) is used for broadcasting the breathing state of the patient under the instruction of the controller (7);

and the alarm (11) is used for receiving the instruction of the controller (7) to alarm when the controller (7) judges that the state of the patient is abnormal.

3. The portable nasal breathing state monitoring device based on the resistance strain gauge sensor as claimed in claim 1, wherein: the soft nose clip (2) comprises a nose clip (15) and two silica gel material layers (13); the nose clip (15) is made of medical plastics, and the front ends of the two inner surfaces of the nose clip (15) are fixed with silica gel material layers (13).

4. The portable nasal respiratory state monitoring device based on the resistance strain gauge sensor according to claim 1 or 3, wherein: the soft nose clip (2) is characterized in that a fixing gasket (10) is fixedly connected to the outer side face in a detachable mode, and the resistance type strain sensor (1) is fixedly connected with the fixing gasket (10) in a detachable mode.

5. The portable nasal breathing state monitoring device based on the resistance strain gauge sensor as claimed in claim 2, wherein: the dynamic acquisition system (5) comprises an adjuster (16) and a data acquisition module (17), electric signals transmitted by the resistance type strain sensor (1) are amplified and filtered by the adjuster (16) and then stored in the data acquisition module (17), and main control software in the controller (7) is used for calling data in the data acquisition module (17), processing and monitoring the temperature change of a postoperative patient through the Pearson correlation coefficient, inverting the correlation of respiration and heartbeat, and giving a threshold value to perform early warning.

Technical Field

The invention belongs to the technical field of respiration monitoring, and particularly relates to a portable nasal respiration state monitoring device based on a resistance strain type sensor.

Background

Postoperative monitoring of a patient after an operation is guarantee of life safety of the patient, strict monitoring and nursing of a patient resuscitated after the operation are carried out, complications after general anesthesia can be effectively reduced, the patient can safely pass an anesthesia period, and the life safety of the patient after the general anesthesia is guaranteed.

At present, patients after operation all adopt strict monitoring and nursing, but the patient who is subjected to the first-level operation is not necessary, on the contrary, the burden and complexity are increased, the operation is not very critical, time and labor are consumed, resources are wasted, and the treatment cost of the patient is increased. Most of the existing respiration detection devices are expensive. Or the influence of the environment is large, the misjudgment is easy to cause, and the carrying of the patient is inconvenient. Based on this, in order to discover through the breathing detection device when patient apnea, breathing interval are great, respiratory rate, respiratory capacity appear great fluctuation to in time report to the police, need design a portable respiratory state monitor comparatively simple and easy and have sensitivity, stability, with real-time detection patient's breathing condition.

Disclosure of Invention

The invention aims to provide a portable nasal breathing state monitoring device based on a resistance strain type sensor, which can monitor the temperature of nasal breathing and the inspiration and expiration.

The technical scheme adopted by the invention is as follows:

a portable nose breathing state monitoring device based on a resistance strain sensor comprises the resistance strain sensor, a soft nose clip, a dynamic acquisition system, a monitoring host and an alarm; the monitoring host is integrated with a controller, a loudspeaker, a display and a power supply module; fixed connection can be dismantled with the front end of soft nose clamp lateral surface to resistance-type strain sensor, and resistance-type strain sensor passes through the wire and is connected with dynamic acquisition system, dynamic acquisition system passes through the wire and is connected with the controller, the controller is connected respectively display, speaker and alarm, power module is monitoring host computer, alarm and the power supply of dynamic acquisition system.

Compared with the prior art, the invention has the beneficial effects that:

1. the portable nose breathing state monitoring device based on the resistance strain type sensor has high precision and high sensitivity, can cause the change of the resistance value through the temperature change generated in the nose breathing process, further collects the nose breathing temperature and the inspiration and expiration volume of a monitored person through the breathing state monitoring device, and can more accurately reflect the breathing state of a patient.

2. The portable nose breathing state monitoring device based on the resistance strain type sensor has long service life and can keep sensitive state monitoring for a longer time.

3. The portable nasal breathing state monitoring device based on the resistance strain type sensor has good frequency response characteristic, and can enable the breathing state monitoring device to monitor various nasal breathing states.

4. The portable nose breathing state monitoring device based on the resistance strain type sensor has a simple structure, is easy to realize miniaturization, integration and variety diversification, and is more convenient for patients to carry.

The invention also has the following advantages:

1. the invention has the advantages of light weight, convenient carrying, high precision and convenient operation, has obvious advantages especially in the moving of patients from operating rooms to wards, overcomes the complexity and inconvenience of the traditional monitoring, improves the working efficiency and saves resources.

2. The soft nose clip is simple in structure and convenient to use, the soft nose clip can be a disposable product, and the device can be repeatedly used after a new soft nose clip is replaced through the detachable resistance-type strain sensor on the soft nose clip, so that the device cannot be subjected to cross infection, and the use safety of the device is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of a portable nasal breathing state monitoring device based on a resistance strain gauge sensor according to the present invention;

FIG. 2 is a schematic view of the connection of the soft nose clip with the resistive strain sensor and the fixing pad;

FIG. 3 is a block diagram of the connection of the controller to the power module, the resistive strain sensor, the speaker, the display and the alarm;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

fig. 5 is a dynamic acquisition system workflow block diagram.

The names and reference numbers of the components referred to in the above figures are as follows:

the device comprises a resistance type strain sensor 1, a soft nose clip 2, a fixing head 3, a lead 4, a dynamic acquisition system 5, a monitoring host 6, a controller 7, a loudspeaker 8, a display 9, a fixing gasket 10, an alarm 11, a hose 12, a silica gel material layer 13, a power supply module 14, a nose clip 15, an adjuster 16 and a data acquisition module 17.

Detailed Description