CN116440417A

CN116440417A - Multifunctional wearable defibrillator

Info

Publication number: CN116440417A
Application number: CN202310413163.1A
Authority: CN
Inventors: 陈伟力; 陈思敏; 陈思杰; 陈思远; 陈思宇
Original assignee: Shenzhen Ruibo Saien Technology Co ltd
Current assignee: Shenzhen Ruibo Saien Technology Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-18

Abstract

The utility model discloses a multifunctional wearable defibrillator, which comprises: the electrode is electrically connected with the control module and the discharge module, and the control module, the discharge module and the alarm module are packaged in a shell; the control module is used for receiving the electrocardiosignals of the patient collected by the electrodes, analyzing the electrocardiosignals, and sending a first trigger signal to the discharge module and the alarm module after judging arrhythmia of the patient; the alarm module is used for sending out alarm information after receiving the first trigger signal; and the discharging module is used for outputting pulse current to the electrode within preset time after receiving the first trigger signal. The wearable defibrillation system can effectively perform early timely defibrillation rescue on sudden severe arrhythmia users regardless of occasions and time, and improves the survival rate of the users.

Description

Multifunctional wearable defibrillator

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a multifunctional wearable defibrillator.

Background

The defibrillator is a medical instrument for eliminating arrhythmia by using stronger pulse current to pass through the heart, so that the defibrillator recovers sinus rhythm, and is necessary first-aid equipment for various departments in hospitals. Defibrillation is one of the important steps for performing cardiopulmonary resuscitation.

At present, a driver of public transportation such as a bus driver is likely to have cardiac arrest caused by life-threatening arrhythmia in the driving process, and serious danger is caused to passengers and public transportation. The utility model of China with publication number CN215025277U discloses a portable defibrillator, including defibrillator body and electrocardiograph monitor, electrocardiograph monitor sets up in the base, the defibrillator body includes lid, base and electrode slice, the lid rotates to be connected on the base, the electrode slice is pasted and is fixed at the lid internal surface, the electrode slice includes electrode slice main part and patch, the electrode slice main part is pasted and is fixed at the lid internal surface, patch one end is equipped with the bayonet joint, the other end is connected with the electrode slice main part, be equipped with on the base with the pulse socket of bayonet joint grafting complex, the advantage lies in, in having the defibrillation function of traditional defibrillator, portable electrocardiograph monitor has still been compatible simultaneously, body temperature monitor and blood oxygen detector, provide "vital four general sign" parameter for the first aid in-process.

However, the portable defibrillator cannot prevent sudden cardiac arrest of patients, is rarely used in public places, needs to be carried by rescue workers, and has the advantages that the effectiveness of rescue is greatly reduced, and the rescue is extremely likely to miss the golden period of rescue to cause difficult or even ineffective rescue.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a multifunctional wearable defibrillator, which aims to solve the problem of the prior art that early defibrillation is not timely and the survival rate of users is reduced.

A multi-functional wearable defibrillator comprising: the electrode is electrically connected with the control module and the discharge module, and the control module, the discharge module and the alarm module are packaged in a shell;

the control module is used for receiving the electrocardiosignals of the patient collected by the electrodes, analyzing the electrocardiosignals, and sending a first trigger signal to the discharge module and the alarm module after judging arrhythmia of the patient;

the alarm module is used for sending out alarm information after receiving the first trigger signal;

and the discharging module is used for outputting pulse current to the electrode within preset time after receiving the first trigger signal.

Further, the control module analyzes the electrocardiograph signal to determine arrhythmia of the patient, including:

preprocessing the electrocardiosignal;

extracting characteristics of the electrocardiosignals to obtain electrocardiosignal characteristics;

and judging arrhythmia of the patient according to the electrocardiosignal characteristics.

Further, preprocessing the electrocardiosignal, including:

and denoising the electrocardiosignal.

Further, extracting features of the electrocardiograph signal to obtain electrocardiograph signal features, including:

calculating the electrocardiosignal by adopting a differential threshold method, and calculating the current instantaneous heart rate of the patient;

and counting the instantaneous heart rate in a preset time period, and obtaining the electrocardiosignal characteristics.

Further, determining a patient arrhythmia from the electrocardiograph signal features includes:

and if the instantaneous heart rate of the patient in the preset time period is not in the normal threshold range, judging that the patient is abnormal in heart rhythm.

Further, the alarm module comprises a loudspeaker and an audio power amplifier circuit, and the control module drives the loudspeaker to send out preset alarm voice through the audio power amplifier circuit.

Further, a key board is arranged on the shell and is electrically connected with the control module;

the key board is used for sending a first feedback signal or a second feedback signal to the control module after the patient receives the alarm information;

the control module is also used for sending a second trigger signal to the discharging module and the alarm module after receiving the first feedback signal of the patient;

the alarm module is used for stopping sending out alarm information after receiving the second trigger signal;

the discharging module is used for stopping outputting pulse current to the electrode within preset time after receiving the second trigger signal;

the control module is also used for sending a third trigger signal to the discharge module after receiving the second feedback signal of the patient;

and the discharging module is used for outputting pulse current to the electrode immediately after receiving the third trigger signal.

Further, the control module is electrically connected with a positioning module and a wireless communication module, and the control module obtains positioning data through the positioning module and sends the positioning data to the remote monitoring terminal through the wireless communication module.

Further, the discharge module includes a battery and a discharge circuit, the battery being removably mounted within the housing.

Further, the bandage comprises a strap part and a waistline part, and the electrodes are arranged on the inner wall of the strap part and the inner wall of the waistline part;

the shell is connected with the waistline through a wire, and the wire is electrically connected with the electrode.

The beneficial effects of the utility model are as follows:

the multifunctional wearable defibrillation system can control the discharge module to output pulse current to the electrode after the arrhythmia of the patient is judged according to the electrocardiosignal of the patient in an off-line mode, defibrillate the patient, can effectively early and timely defibrillate and rescue sudden severe arrhythmia users without occasion and time, and improves the survival rate of the users.

In addition, the work of the patient is not influenced by the design of the wearing type, and the wearing type electric bicycle is convenient to carry. When the patient is in arrhythmia, the positioning data of the patient is sent to the remote monitoring terminal through the wireless communication module, and relevant personnel are reminded of timely grasping the position information of the patient, so that further treatment is provided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a multifunctional wearable defibrillator according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a housing of a multifunctional wearable defibrillator according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a system architecture of a multifunctional wearable defibrillator according to an embodiment of the present utility model;

fig. 4 is a diagram illustrating an electrocardiograph signal waveform according to an embodiment of the present utility model.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

As shown in fig. 1 to 3, the multifunctional wearable defibrillator provided by the embodiment of the utility model comprises a binding band 2 with a battery 1, a control module, a discharging module and an alarm module, wherein the battery 1 is electrically connected with the control module and the discharging module, and the control module, the discharging module and the alarm module are packaged in a shell 3.

For convenient wearing, the bandage 2 comprises a strap part 21 and a waistline part 22, the electrode 1 is arranged on the inner wall of the strap part 21 and the inner wall of the waistline part 22, after the patient wears the bandage, the electrode 1 is attached to the skin of the patient and used for collecting electrocardiosignals of the patient and outputting high-energy pulse current to the patient for defibrillation when the patient is in arrhythmia. The case 3 and the waistline portion 22 are connected by a lead wire 23, and the lead wire 23 is electrically connected to the electrode 1. Both ends of the wire 23 are provided with quick plugs, and the wire is connected with the shell 3 and the waistline 22 through the quick plugs, so that the wire is convenient to disassemble and store. When in use, the shell 3 can be spanned between the waists or placed on the seat, and the work is not affected.

In this embodiment, the control module is configured to receive an electrocardiograph signal of a patient acquired by the electrode 1, analyze the electrocardiograph signal, and send a first trigger signal to the discharge module and the alarm module after determining arrhythmia of the patient.

Specifically, the control module analyzes the electrocardiosignal to determine arrhythmia of a patient, and the method comprises the following steps: preprocessing an electrocardiosignal; extracting characteristics of the electrocardiosignals to obtain electrocardiosignal characteristics; and judging arrhythmia of the patient according to the characteristics of the electrocardiosignal.

The original electrocardiogram often has a lot of noise, and the noise interference may come from the inside of the heart of the testee, and may also be caused by muscle contraction during exercise, or power frequency interference caused by human body capacitance, and other reasons. Therefore, preprocessing such as denoising is necessary for the electrocardiographic signals, and the complexity of the waveform should be reduced while maintaining the maximum value, minimum value, and width of the waveform, so that the interference of unstable noise is reduced.

In this embodiment, the most common wavelet transform method is adopted, and the signal can be subjected to multi-layer decomposition at low frequency, so that low-frequency interference such as baseline drift is removed, and Daubechies 8 wavelet is adopted in this embodiment. The selection of the threshold and the threshold function also directly affects the denoising effect, and in the embodiment, the max threshold and the hard threshold function are selected, so that the peak value is prevented from being reduced, and the influence on the subsequent R wave crest finding is avoided.

Further, extracting features of the electrocardiosignal to obtain the electrocardiosignal features, including: calculating the electrocardiosignal by adopting a differential threshold method, and calculating the current instantaneous heart rate of the patient; and counting the instantaneous heart rate in a preset time period, and obtaining the electrocardiosignal characteristics.

In this embodiment, a differential threshold method is adopted to calculate the heart rate, and the specific processing method is as follows: and (3) differentiating the data acquired by the current serial port from the data acquired before, wherein when the result of the differentiation is larger than a certain preset value and the data of the current serial port is also larger than a certain set threshold value, the current data is likely to be the R wave crest to be detected. In order to prevent the R wave from exceeding the set threshold value in the rising process to cause system misjudgment, the judgment is carried out again after the point which is possibly the R wave crest is found, and if the serial port value starts to fall, the point is exactly the position of the R wave crest. Finally, calculating the time interval between the R wave peaks, and calculating the current instantaneous heart rate by taking the time interval as the time of one heart beat.

In this embodiment, determining arrhythmia of a patient according to characteristics of electrocardiograph signals includes: and if the instantaneous heart rate of the patient in the preset time period is not in the normal threshold range, judging that the patient is abnormal in heart rhythm.

Fig. 4 shows a typical electrocardiographic signal waveform from which the QRS band can be observed. Wherein the R point is the point with the largest electrocardiogram amplitude. The number of occurrences of the QRS wave in the electrocardiograph signal, i.e., the number of heartbeats, can be obtained by identifying the R point and observing an R-R interval (typically 0.6 to 1.2 s). A common unit of heart rate is bpm, the number of beats per minute.

RR interval refers to the time period between two R waves on an electrocardiogram. A normal RR interval should be between 0.6 and 1.0 seconds, less than 0.6 seconds indicating tachycardia and more than 1.0 seconds indicating bradycardia. When the RR intervals are unequal, the arrhythmia is indicated, and obvious RR intervals are unequal in an electrocardiogram with atrial fibrillation. In addition, the RR interval should generally be equal to the PP interval, i.e. the time period between two P-waves, and should also be between 0.6 and 1.0 seconds. RR intervals reflect ventricular rhythms and PP intervals reflect atrial rhythms. Conduction blocks may occur when the atrial and ventricular rhythms are unequal. In an electrocardiogram with three degrees of atrioventricular block, PP and RR intervals will be absolutely unequal. The alarm module is used for sending out alarm information after receiving the first trigger signal. In this embodiment, the alarm module includes a speaker 5 and an audio power amplifier circuit, and the control module drives the speaker 5 to send out a preset alarm voice through the audio power amplifier circuit. The speaker 5 may be mounted on the housing 3.

In this embodiment, a keypad 4 is disposed on the housing 3, and the keypad 4 is electrically connected to the control module. The keypad 4 is used for the patient to send a first feedback signal or a second feedback signal to the control module after receiving the alarm information.

When the control module judges arrhythmia of the patient, the audio power amplifier circuit is triggered to drive the loudspeaker 5 to send out preset alarm voice to remind the patient and people around the patient. And has a short time for the patient to decide whether defibrillation is needed or not, if the patient presses the first button on the key board 4, a first feedback signal is sent to the control module, and the patient decides not to defibrillate at this time; if the patient presses a second button on the keypad 4, a second feedback signal is sent to the control module, indicating that the patient decides to defibrillate immediately.

Of course, if the patient does not respond within a preset time, for example, within 5 seconds, after the alarm voice is sent, that is, neither the first button nor the second button is pressed, the control module defaults to perform shock defibrillation.

After receiving the first trigger signal, the discharge module outputs pulse current to the electrode 1 within preset time. However, if the control module receives the first feedback signal from the patient within the preset time, it sends a second trigger signal to the discharging module and the alarm module, which indicates that the patient decides not to defibrillate. The alarm module is used for stopping sending out alarm information after receiving the second trigger signal. After receiving the second trigger signal, the discharge module stops outputting pulse current to the electrode 1 within a preset time.

Alternatively, the control module, upon receiving the second feedback signal from the patient, sends a third trigger signal to the discharge module indicating that the patient decides to defibrillate immediately. And after receiving the third trigger signal, the discharging module immediately outputs pulse current to the electrode 1 to defibrillate. And the alarm module can continuously send alarm information to remind people around the patient to pay attention to the patient, help is provided for the patient, and when a stop alarm button on the key board 4 is pressed, the control module controls the alarm module to stop alarming. Further, the control module is electrically connected with a positioning module and a wireless communication module, and the control module acquires positioning data through the positioning module and sends the positioning data to the remote monitoring terminal through the wireless communication module.

In this embodiment, the positioning module, the wireless communication module, and the control module may be integrated on a circuit board and installed in the housing 3. When the control module judges arrhythmia of a patient, positioning data are acquired in real time through the positioning module, the positioning data are longitude and latitude data, the positioning data are sent to the remote monitoring terminal through the wireless communication module to be recorded, and the remote monitoring terminal sends the data to corresponding monitoring personnel after receiving the data, so that the monitoring personnel are reminded of timely taking rescue measures.

In this embodiment, the control module may be a processor, such as a CPU (Central Processing Unit ) of a computer, an ARM (Advanced RISC Machine, microprocessor), or the like. The positioning module can adopt a Beidou module and/or a GPS module, and the wireless communication module can adopt a 4G module, a 5G module and/or a WiFi module.

In this embodiment, the discharging module includes a battery 6 and a discharging circuit, and the battery 6 is detachably mounted in the housing 3. The discharging circuit can be a discharging circuit of a conventional portable defibrillator, the battery 6 is used for providing electric energy of pulse current, and the control module outputs the pulse current to the electrode 1 by controlling the discharging circuit. The battery 6 can be provided with a plurality of batteries, and the battery 6 can be replaced immediately when the electric quantity is insufficient, so that the system can work for a long time. In addition, the weight and the size of the single battery 6 are not too large because the battery can be conveniently replaced, so that the whole shell 3 is small and exquisite enough, light and convenient, and has low cost and convenient carrying.

In summary, the multifunctional wearable defibrillation system can control the discharge module to output pulse current to the electrode after the arrhythmia of the patient is judged offline according to the electrocardiosignal of the patient, defibrillate the patient, can effectively early and timely defibrillate and rescue sudden severe arrhythmia users regardless of occasions and time, and improves the survival rate of the users.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims

1. A multi-functional wearable defibrillator comprising: the electrode (1) is electrically connected with the control module and the discharge module, and the control module, the discharge module and the alarm module are packaged in a shell (3);

the control module is used for receiving the electrocardiosignals of the patient acquired by the electrode (1), analyzing the electrocardiosignals, and sending a first trigger signal to the discharge module and the alarm module after judging arrhythmia of the patient;

the discharging module is used for outputting pulse current to the electrode (1) within preset time after receiving the first trigger signal.

2. The multifunctional wearable defibrillator of claim 1 wherein the control module analyzes the electrocardiograph signal for patient arrhythmia, comprising:

preprocessing the electrocardiosignal;

3. The multifunctional wearable defibrillator of claim 2 wherein preprocessing the electrocardiographic signal comprises:

and denoising the electrocardiosignal.

4. The multifunctional wearable defibrillator of claim 2 wherein the feature extraction of the electrocardiograph signal to obtain electrocardiograph signal features comprises:

5. The multifunctional wearable defibrillator of claim 4 wherein determining a patient arrhythmia from the electrocardiographic signal characteristics comprises:

6. A multifunctional wearable defibrillator according to claim 1, wherein the alarm module comprises a speaker (5) and an audio power amplifier circuit, and wherein the control module drives the speaker (5) to emit a preset alarm voice through the audio power amplifier circuit.

7. A multifunctional wearable defibrillator according to claim 1, characterized in that the housing (3) is provided with a key pad (4), the key pad (4) being electrically connected to the control module;

the key board (4) is used for sending a first feedback signal or a second feedback signal to the control module after the patient receives the alarm information;

the discharging module is used for stopping outputting pulse current to the electrode (1) within preset time after receiving the second trigger signal;

the discharging module is used for outputting pulse current to the electrode (1) immediately after receiving the third trigger signal.

8. The multifunctional wearable defibrillator of claim 1 wherein the control module is further electrically connected to a positioning module and a wireless communication module, wherein the control module obtains positioning data via the positioning module and transmits the positioning data to a telemonitoring terminal via the wireless communication module.

9. A multifunctional wearable defibrillator according to claim 1, wherein the discharge module comprises a battery (6) and a discharge circuit, the battery (6) being detachably mounted in the housing (3).

10. A multi-functional wearable defibrillator according to claim 1, wherein the strap (2) comprises a strap portion (21) and a waistline portion (22), the electrode (1) being mounted on an inner wall of the strap portion (21) and an inner wall of the waistline portion (22);

the shell (3) is connected with the waistline (22) through a wire (23), and the wire (23) is electrically connected with the electrode (1).