Multifunctional portable respiration measuring instrument

Abstract

The multifunctional portable respiration measuring instrument comprises a cross beam, a left supporting rod, a right supporting rod, a controller and a sensor module, the upper end of the left supporting rod is connected with one end of the cross beam, the upper end of the right supporting rod is connected with the other end of the cross beam, the controller is installed on the cross beam, and a chest strap is connected between the lower end of the left supporting rod and the lower end of the right supporting rod; the sensor module comprises a flexible PCB and a piezoelectric film sensor installed on the flexible PCB, the controller comprises a shell and a single-chip microcomputer installed in the shell, and the single-chip microcomputer is provided with a signal processing module, a power module and a communication module. The flexible PCB and the piezoelectric film sensor are adopted and can be tightly attached to the chest, respiration signals are accurately collected, and the monitoring precision is improved; the adjustable cross beam and chest strap structure is suitable for users of different body types, and comfort and stability are both considered. The respiration measuring instrument can be quickly and conveniently mounted on the medical care bed and is suitable for various places and environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical care instruments, and particularly relates to a multi-functional portable respiratory measuring instrument. Background Art

[0002] In the field of medical health, the real-time and accurate monitoring of respiratory parameters is crucial for scenarios such as disease diagnosis, postoperative recovery, and sports health management. Traditional respiratory monitoring devices, such as large ventilators and multi-parameter monitors used in hospitals, are usually bulky and complex in structure, rely on fixed power sources and professional medical staff for operation, and are difficult to meet the portable monitoring needs in scenarios such as home care, outdoor first aid, and sports training. In recent years, although some portable respiratory monitoring products have emerged, such as wearable bracelets or patch sensors, there are many technical bottlenecks. On the one hand, the sensors of such devices mostly adopt rigid structures and are difficult to accurately fit the human body surface, resulting in large errors in respiratory signal acquisition; on the other hand, the adjustment functions of existing portable devices are limited, unable to adapt to the personalized needs of different body types and different usage scenarios, and the wearing comfort and monitoring stability are insufficient. In addition, most portable respiratory monitoring devices have a single communication method and lack a real-time warning mechanism for abnormal situations, making it difficult to achieve rapid response in scenarios such as telemedicine and emergency rescue. Summary of the Invention

[0003] To solve the above technical problems, the technical solution adopted by the present invention is: a multi-functional portable respiratory measuring instrument, including a cross beam, a left support rod, a right support rod, a controller, and a sensor module. The upper end of the left support rod is connected to one end of the cross beam, and the upper end of the right support rod is connected to the other end of the cross beam. The controller is installed on the cross beam. A chest strap is connected between the lower ends of the left support rod and the right support rod. The sensor module includes a flexible PCB and a piezoelectric film sensor installed on the flexible PCB. The controller includes a housing and a single-chip microcomputer installed in the housing. The single-chip microcomputer is provided with a signal processing module, a power module, and a communication module. The power module is connected to a storage battery or mains electricity. The communication module is connected to a mobile terminal through a wireless network. The sensor module is connected to the single-chip microcomputer through a signal line.

[0004] As a preference of the above technical solution, movable openings for the cross beam to pass through are respectively provided at the upper ends of the left support rod and the right support rod, and threaded holes communicating with the movable openings are respectively provided at the upper ends of the left support rod and the right support rod. Adjusting bolts are threadedly connected in the threaded holes.

[0005] As a preferred embodiment of the above technical solution, the inner sides of the left support rod and the right support rod are respectively provided with mounting grooves, and an adjusting rod is provided in the mounting groove. The two ends of the adjusting rod are fixedly connected to the left support rod or the right support rod, and a sliding sleeve is provided on the adjusting rod, and a pull plate is fixedly connected to the sliding sleeve. The pull plate is provided with a strap hole for one end of the chest strap to pass through. After one end of the chest strap passes through the strap hole, it is connected to the chest strap through a buckle. The sliding sleeve is provided with a threaded adjustment hole connected to the inside of the sliding sleeve, and an adjustment screw is threadedly connected in the threaded adjustment hole.

[0006] As a preferred embodiment of the above technical solution, the communication module is a Bluetooth communication module, a WiFi module, an NFC module or a cellular communication module.

[0007] As a preferred embodiment of the above technical solution, an audible and visual alarm is installed on the controller, and the audible and visual alarm is connected to the single chip microcomputer.

[0008] As a preferred embodiment of the above technical solution, the lower ends of the left support rod and the right support rod are respectively fixedly connected to a base.

[0009] As a preferred embodiment of the above technical solution, the lower ends of the left support rod and the right support rod are respectively fixedly connected to sleeves, and the sleeves are connected to clamps.

[0010] The beneficial effects of the present invention are as follows: The multifunctional portable respirometer utilizes a flexible PCB and piezoelectric film sensor, allowing for a close fit on the chest, accurately capturing respiratory signals and improving monitoring accuracy. The adjustable crossbar and chest strap accommodate users of varying body shapes, ensuring both comfort and stability. The communication module supports multiple modes, including Bluetooth and WiFi, enabling real-time data transmission and remote monitoring. The audible and visual alarms provide timely responses to respiratory abnormalities, ensuring user safety. The respirometer can be quickly and easily installed on a medical bed, making it suitable for a variety of environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0012] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0013] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0014] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0015] The multifunctional portable respiratory measurement instrument includes a cross beam 1, a left support rod 2, a right support rod 3, a controller 4, and a sensor module 5. The upper end of the left support rod 2 is connected to one end of the cross beam 1, and the upper end of the right support rod 3 is connected to the other end of the cross beam 1. The controller 4 is installed on the cross beam 1. A chest strap 7 is connected between the lower ends of the left support rod 2 and the right support rod 3. The sensor module 5 includes a flexible PCB and a piezoelectric film sensor installed on the flexible PCB. The controller 4 includes a housing and a single-chip microcomputer installed in the housing. The single-chip microcomputer is provided with a signal processing module, a power module, and a communication module. The power module is connected to a storage battery or the mains. The communication module is connected to a mobile terminal through a wireless network. The sensor module 5 is connected to the single-chip microcomputer through a signal line. Place the respiratory measurement instrument on the hospital bed, fix the left support rod 2 and the right support rod 3, and press the chest strap 7 against the patient's chest or abdomen. When the patient breathes, the chest / abdomen rises and falls to stretch the film, and the piezoelectric film sensor generates a charge signal. The signal frequency corresponds to the breathing frequency. The signal processing module is provided with an instrumentation amplifier, a band-pass filter, and an ADC chip. The instrumentation amplifier is used to amplify the weak signal of the piezoelectric film. The band-pass filter removes environmental noise. The ADC chip further converts the signal into a digital signal. The communication module transmits data to the mobile phone APP or the monitoring host (mobile terminal) in real time. The specific working process of the signal processing module is as follows: perform FFT spectrum analysis on the piezoelectric film signal, extract the main peak frequency (corresponding to the breathing frequency, normal range: 12 - 20 times / minute); combine the pressure signal of the differential pressure sensor and the deformation data of the strain sensor, and fit the tidal volume through a calibration model (formula: V T=k·ΔP·ΔL, where k is the calibration coefficient). Set a threshold (such as respiratory rate < 8 breaths / min or > 30 breaths / min), and trigger an audible and visual alarm or push a notification.

[0016] Further, the upper ends of the left support rod 2 and the right support rod 3 are respectively provided with movable openings 8 for the cross beam 1 to pass through. The upper ends of the left support rod 2 and the right support rod 3 are respectively provided with threaded holes communicating with the movable openings 8, and adjusting bolts 9 are threadedly connected in the threaded holes. By loosening or tightening the adjusting bolts 9, the distance between the left support rod 2 and the right support rod 3 can be adjusted to adapt to different bodies.

[0017] Further, mounting grooves 10 are respectively arranged on the inner sides of the left support rod 2 and the right support rod 3. Adjusting rods are arranged in the mounting grooves 10. The two ends of the adjusting rods are fixedly connected to the left support rod 2 or the right support rod 3. Sliding sleeves are sleeved on the adjusting rods. A pull plate 12 is fixedly connected to the sliding sleeves. A belt passing hole 13 for one end of the chest strap 7 to pass through is arranged on the pull plate 12. After one end of the chest strap 7 passes through the belt passing hole 13, the chest strap 7 is connected by a day buckle. A threaded adjusting hole communicating with the inside of the sliding sleeve is arranged on the sliding sleeve, and an adjusting screw rod 14 is threadedly connected in the threaded adjusting hole. The length of the chest strap 7 can be adjusted by the day buckle. By loosening or tightening the adjusting screw rod 14, the heights of both ends of the chest strap 7 are adjusted. The installation method of the chest strap 7 enables the measurement to be completed without moving the patient while the chest strap 7 is being tied.

[0018] Further, the communication module is a Bluetooth communication module, a WiFi module, an NFC module or a cellular communication module.

[0019] Further, an audible and visual alarm 15 is installed on the controller 4, and the audible and visual alarm 15 is connected to the single-chip microcomputer. The audible and visual alarm 15 gives an audible and visual alarm after the measured value exceeds the threshold.

[0020] Further, the lower ends of the left support rod 2 and the right support rod 3 are respectively fixedly connected with bases 11. The bases facilitate the stable installation of the left support rod 2 and the right support rod 3 on the hospital bed.

[0021] Further, the lower ends of the left support rod 2 and the right support rod 3 are respectively fixedly connected with sleeves 16, and a hoop 17 is connected to the sleeves 16. The hoop 17 is used to tightly hold the bed frame of the hospital bed, so that the respiratory measuring instrument is fixed to the hospital bed. The hoop 17 is hinged to the sleeve 16 and can hold the bed frame at multiple angles. The sleeve 16 can also be connected to the left support rod 2 or the right support rod 3 by means of bolt locking, so that the height of the hoop 17 is adjustable to adapt to different hospital bed frames.

[0022] The applicable scenarios of the multifunctional portable respiratory measuring instrument of the present invention include: postoperative patient respiratory monitoring, screening for sleep apnea syndrome (SAS); optimizing respiratory efficiency during fitness and monitoring athlete load; monitoring the correlation between fetal movement and maternal respiration in pregnant women, and home respiratory monitoring for the elderly.

[0023] It is worth mentioning that the technical features such as flexible PCB and piezoelectric film sensors involved in this invention patent application should be regarded as prior art. The specific structures, working principles, and possible control methods and spatial arrangement methods of these technical features can be selected conventionally in the art and should not be regarded as the inventive points of this invention patent. This invention patent will not be further specifically elaborated.

[0024] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. Multifunctional portable respiratory measuring instrument, characterized in that, It includes a cross beam, a left support rod, a right support rod, a controller, and a sensor module. The upper end of the left support rod is connected to one end of the cross beam, and the upper end of the right support rod is connected to the other end of the cross beam. The controller is installed on the cross beam. A chest strap is connected between the lower ends of the left support rod and the right support rod. The sensor module includes a flexible PCB and a piezoelectric film sensor installed on the flexible PCB. The controller includes a housing and a single-chip microcomputer installed in the housing. The single-chip microcomputer is provided with a signal processing module, a power supply module, and a communication module. The power supply module is connected to a storage battery or the mains. The communication module is connected to a mobile terminal through a wireless network. The sensor module is connected to the single-chip microcomputer through a signal line.

2. The multifunctional portable respiratory measurement instrument according to claim 1, wherein, Activity openings for the cross beam to pass through are respectively provided at the upper ends of the left support rod and the right support rod. Threaded holes communicating with the activity openings are respectively provided at the upper ends of the left support rod and the right support rod. Adjusting bolts are threadedly connected in the threaded holes.

3. The multifunctional portable respiratory rate measuring device according to claim 1, characterized in that, Installation grooves are respectively provided on the inner sides of the left support rod and the right support rod. Adjusting rods are provided in the installation grooves. The two ends of the adjusting rod are fixedly connected to the left support rod or the right support rod. A sliding sleeve is sleeved on the adjusting rod. A pulling plate is fixedly connected to the sliding sleeve. A strap-passing hole for one end of the chest strap to pass through is provided on the pulling plate. After one end of the chest strap passes through the strap-passing hole, it is connected to the chest strap through a day buckle. A threaded adjusting hole communicating with the inside of the sliding sleeve is provided on the sliding sleeve. An adjusting screw rod is threadedly connected in the threaded adjusting hole.

4. The multifunctional portable respiratory measuring instrument according to claim 1, characterized in that The communication module is a Bluetooth communication module, a WiFi module, an NFC module, or a cellular communication module.

5. The multi-functional portable respiratory rate measuring device according to claim 1, wherein An audible and visual alarm is installed on the controller. The audible and visual alarm is connected to the single-chip microcomputer.

6. The multifunctional portable respiratory rate measuring device according to claim 1, wherein, Bases are respectively fixedly connected to the lower ends of the left support rod and the right support rod.

7. The multifunctional portable respiratory measuring instrument according to claim 6, characterized in that, Sleeves are respectively fixedly connected to the lower ends of the left support rod and the right support rod. A hoop is connected to the sleeve.

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