CN115120882A

CN115120882A - Wearable external defibrillator and operation method

Info

Publication number: CN115120882A
Application number: CN202210774676.0A
Authority: CN
Inventors: 杨圣均; 廖亚
Original assignee: Nanjing Superstar Medical Equipment Co ltd; Chongqing Shubo Medical Technology Co ltd
Current assignee: Nanjing Superstar Medical Equipment Co ltd; Chongqing Shubo Medical Technology Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-30
Also published as: CN219700833U

Abstract

The invention discloses a wearable external defibrillator and an operation method, the defibrillator comprises a defibrillator body, the defibrillator body is provided with a monitoring module, a rechecking module and a treatment module, the detection content of the monitoring module comprises a heart rhythm signal, a respiration signal and a posture signal, the rechecking module runs a heart ventricular fibrillation and/or a heart ventricular rapid judgment program, and the treatment module is contacted with the skin of a human body through a conductive foil; the method of operation is based on defibrillator settings. By adopting the invention, the monitoring module detects and compares the heart rhythm signal, the respiration signal and the posture signal of the human body, the rechecking module runs a heart fibrillation and/or heart fast ventricular quick judging program, and the data obtained by the monitoring module is processed again; the invention monitors a plurality of data, analyzes and processes the data obtained by synthesis, and performs recheck analysis, thereby analyzing the data more comprehensively, improving the accuracy of heart rhythm analysis and improving the accuracy of electric shock.

Description

Wearable external defibrillator and operation method

Technical Field

The present invention relates to a wearable defibrillator, and more particularly to a wearable external defibrillator and method of operation.

Background

The wearable external defibrillator (WCD) can be used for wearing the automatic defibrillator and the electrodes on a patient body, does not need external assistance, automatically monitors the cardiac rhythm signal of the patient in real time, and automatically performs electric shock defibrillation to realize the transfer of the cardiac rhythm if the cardiac rhythm signal endangering the life of the patient appears. Passively applied, conductive gel-containing therapeutic electrode pads used by rescuers in Automated External Defibrillators (AEDs) are not suitable for use in wearable external defibrillators (WCDs). Because the non-hermetic storage of the conductive gel can quickly fail, the current technology is to store the conductive gel in a hermetic container and arrange the conductive gel between the electrode pads and the human skin by a conductive gel releasing device in response to a relevant signal before defibrillation shock is required, so as to reduce the contact resistance. But solves the impedance problem at the same time. Also poses new problems, the conductive gel storage device is configured to release the conductive gel, i.e., may be undesirably released under external pressure, resulting in treatment failure; the system structure of the conductive gel storage device and the release device is complex, the volume is large, the wearing comfort of a human body is seriously influenced, and the compliance of a patient is reduced; after each release of the conductive gel, the remaining gel is difficult to clean, and the gel can cause skin allergy to human body when contacting the skin for a long time.

In addition, the existing wearable defibrillator judges whether the patient has cardiac arrest only by means of cardiac rhythm identification, and is highly dependent on a cardiac rhythm identification algorithm, and the motion, respiration, sleep, living environment and the like of the patient can generate great influence and interference on cardiac rhythm analysis, so that the accuracy of cardiac rhythm analysis is seriously reduced, and further electric shock or electric shock leakage is caused.

Disclosure of Invention

The invention aims to: aiming at the problem that the data is too single when the wearable defibrillator judges the state of a patient in the prior art, the multi-module wearable external defibrillator integrates various data of the patient to process and has strong reliability and an operation method.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a wearing formula external defibrillator, includes the defibrillator body, is equipped with monitoring module, recheck module, treatment module on the defibrillator body, and monitoring module's detection content includes rhythm of the heart signal, respiratory signal, gesture signal, and the recheck module operation heart room quivers to and/or the fast judgement procedure of heart room, and treatment module contacts with human skin through the conducting foil.

According to the invention adopting the technical scheme, the monitoring module detects and compares the heart rhythm signal, the respiration signal and the posture signal of the human body, and when the three data exceed the limit values, the feedback is carried out and the next step is carried out; when the data reported by the monitoring module exceeds the limit, the rechecking module runs a cardiac fibrillation and/or fast ventricular rate judging program, and processes the data obtained by the monitoring module again to perform more accurate judgment; after judging that the conditions of electric shock treatment are met in all the steps, the treatment module carries out electric shock operation and defibrillation treatment; the invention monitors a plurality of data, and analyzes and processes the data obtained by synthesis, thereby analyzing the data more comprehensively, improving the accuracy of the heart rhythm analysis and the accuracy of the electric shock.

Furthermore, the two treatment modules are respectively arranged at the upper part and the lower part of the defibrillator body, the conductive foil is connected with the electrode shell, and the electrode shell can be expanded and fixed on the defibrillator body after being ventilated. The electrode housing is expanded by passing gas, thereby squeezing the conductive foil and causing the conductive foil to cling to the skin.

Further, be fixed with air supply spare on the defibrillator body, air supply spare is connected to the electrode shell through the air duct, still is equipped with the waistband on the defibrillator body, and the waistband is located treatment module's below. The gas source piece is fixed at the position of the waistband, the waistband and the treatment module are arranged separately, the integration degree of parts at the treatment module is reduced, and the influence of the gas source piece on the fitting degree of the treatment module and a human body is reduced; the belt can also be used for installing and fixing a host machine and the like.

Furthermore, still be equipped with the module of warning on the defibrillator body, be equipped with the speaker on the module of warning, can send out warning sound in order to carry out the warning before the electric shock. The warning module sends out warning sound before the electric shock starts so as to remind that the electric shock defibrillation is about to be carried out.

Further, the defibrillator body may be of a single-shoulder type or a double-shoulder type, and each module is detachably fixed on the defibrillator body. The structure of defibrillator body is selected for use as required, and the detachable module makes things convenient for user's regular cleaning.

According to another aspect of the present invention, there is provided a method of operating a wearable external defibrillator, implemented on the basis of the wearable external defibrillator of any one of claims 1 to 5 above, and comprising the steps of:

s1: the monitoring module monitors the state of the human body, judges the obtained data and enters the next step if the electric shock condition is met;

s2: starting a rechecking module, operating a cardiac fibrillation and/or cardiac ventricular rapid judgment program, judging the signals collected by the detection module again, and entering the next step if the signals meet the electric shock condition;

s3: starting an alarm module, sending out an alarm about to be shocked through a patient feedback program, and entering a defibrillation preparation program if the patient does not receive external active feedback information within a set time;

s4: defibrillation is performed.

The operation method is provided with a monitoring module, a rechecking module and a warning module, the monitoring module monitors human body data in sequence and analyzes and judges the human body data, and the rechecking module is started if the human body data meet the electric shock condition; operating a cardiac ventricular fibrillation and/or cardiac ventricular rapid judgment program, performing secondary judgment on the signals collected by the monitoring module, and starting the warning module if the signals meet the electric shock condition; the warning module sends out warning about the fact that electric shock is about to be conducted, reminds a patient or surrounding people about to conduct electric shock defibrillation operation, stops electric shock if the people feed back within the warning set time, enters a defibrillation preparation program if no people feed back, and finally conducts electric shock defibrillation.

Further, in S1, the monitoring content for the human body includes a heart rate signal, a respiration signal, and a posture signal, and when all three signals are abnormal, the condition is met and S2 is entered; and the rechecking module starts a heart chamber fibrillation and/or heart fast chamber speed judging program to process the heart rhythm signal obtained in the step S1 again to judge whether the heart rhythm signal accords with the defibrillation shock heart rhythm or not. In S1, the monitoring module monitors three signals, namely a heart rate signal, a respiration signal, and an attitude signal, and the determination method is that when all three signals are abnormal, the condition is satisfied with an electric shock, and then the operation goes to S2, namely, the rechecking module is started; the rechecking module processes the heart rhythm signal obtained by the monitoring module again to judge whether the data accords with the defibrillation electric shock heart rhythm; the method of rechecking is arranged, so that data can be analyzed more comprehensively, the accuracy of rhythm analysis can be improved, and the accuracy of electric shock is improved.

Further, in S3, the warning mode is to sound a warning sound and/or the light flashes, and the setting time of the warning is not more than 30 seconds. The specific warning mode can be changed according to the requirement, and the warning time can be adjusted adaptively.

Further, in S3, the active feedback information is provided by pressing the stop button, and the defibrillation operation in S4 is not performed. The warning module is used for sending a warning to prompt that electric shock is about to be carried out before defibrillation is started, and a person receiving a warning signal can feed back information within a set time and stop an electric shock program in a key pressing mode; the electric shock program can be carried out according to the setting without information feedback.

Further, defibrillation comprises the steps of:

s4-1: ventilating the electrode shell, expanding the electrode shell and pressing the conductive foil to be attached to the skin;

s4-2: and (4) data detection and judgment, and when the impedance between the skin and the conductive foil is reduced to a set value or the air pressure in the electrode shell is increased to a set value, electric shock defibrillation is immediately carried out.

When in defibrillation, the conductive foil is required to be tightly attached to the skin, and ventilation can be conducted into the electrode shell, so that the conductive foil meets the condition of being tightly attached to the skin; in order to ensure that the defibrillation effect is better, two data of the impedance between the skin and the conductive foil and the air pressure in the electrode shell are monitored, and the electric shock is started to defibrillate as long as at least one of the two data reaches a set value.

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

the monitoring module detects and compares a heart rhythm signal, a respiration signal and an attitude signal of a human body, and when the three data exceed limit values, the monitoring module feeds back and enters the next step; when the data reported by the monitoring module exceeds the limit, the rechecking module runs a cardiac ventricular fibrillation and/or fast ventricular rate judging program, and processes the data obtained by the monitoring module again to judge more accurately; after judging that the conditions of electric shock treatment are met in all the steps, the treatment module carries out electric shock operation and defibrillation treatment; the invention monitors a plurality of data, analyzes and processes the data obtained by synthesis, and performs recheck analysis, thereby analyzing the data more comprehensively, improving the accuracy of heart rhythm analysis and improving the accuracy of electric shock. The operation method comprises the steps that a monitoring module, a rechecking module and a warning module are arranged, the monitoring module monitors human body data in sequence and analyzes and judges the human body data, and the rechecking module is started if the human body data meet an electric shock condition; running a cardiac fibrillation and/or cardiac ventricular rapid judgment program, performing secondary judgment on the signals collected by the monitoring module, and starting a warning module if the signals meet the electric shock condition; the warning module sends out the warning of about to carry out the electric shock, reminds the patient or people around to carry out the electric shock defibrillation operation, if in the warning set time, someone feeds back and then stops the electric shock, and nobody feeds back and then enters the defibrillation preparation program, finally, carries out the electric shock defibrillation.

Description of the drawings:

the accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a wearable external defibrillator of the present invention.

Fig. 2 shows a partial block diagram of fig. 1.

Figure 3 illustrates various connections of the defibrillator body.

Fig. 4 shows a schematic view of a first embodiment of the installation position of the air supply unit.

Fig. 5 is a schematic view showing a second embodiment of the installation position of the air supply unit.

Figure 6 shows a partial schematic view of the shoulders configuration of the wearable external defibrillator of the present invention.

Wherein the figures include the following reference numerals:

10 a defibrillator body; 20 a therapy module; 21 a conductive foil; 22 an electrode housing; 31 a gas supply member; 32 an airway tube; 40 waistband.

Detailed Description

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, a wearable external defibrillator comprises a defibrillator body 10, wherein a monitoring module, a rechecking module and a treatment module 20 are arranged on the defibrillator body 10, the detection content of the monitoring module comprises a heart rhythm signal, a respiration signal and a posture signal, the rechecking module runs a heart ventricular fibrillation and/or a heart ventricular rapid-rate judgment program, and the treatment module 20 is in contact with the skin of a human body through a conductive foil 21.

According to the invention adopting the technical scheme, the monitoring module detects and compares the heart rhythm signal, the respiration signal and the posture signal of the human body, and when the three data exceed the limit values, the feedback is carried out and the next step is carried out; when the data reported by the monitoring module exceeds the limit, the rechecking module runs a cardiac ventricular fibrillation and/or fast ventricular rate judging program, and processes the data obtained by the monitoring module again to judge more accurately; after each step judges that the condition of electric shock treatment is met, the treatment module 20 performs electric shock operation to perform defibrillation treatment; the invention monitors a plurality of data, analyzes and processes the data obtained by synthesis, and performs recheck analysis, thereby analyzing the data more comprehensively, improving the accuracy of heart rhythm analysis and improving the accuracy of electric shock.

Further, the therapy module 20 is provided with two parts which are respectively arranged at the upper part and the lower part of the defibrillator body 10, the conductive foil 21 is connected with an electrode shell 22, and the electrode shell 22 can be expanded and fixed on the defibrillator body 10 after being ventilated. The electrode housing 22 is inflated by passing a gas, thereby pressing the conductive foil 21 and bringing the conductive foil 21 into close contact with the skin.

Further, an air source part 31 is fixed on the defibrillator body 10, the air source part 31 is connected to the electrode shell 22 through an air duct 32, a belt 40 is further arranged on the defibrillator body 10, and the belt 40 is located below the therapy module 20. The air source piece 31 is fixed at the position of the waistband 40, the waistband 40 and the treatment module 20 are separately arranged, the integration degree of parts at the treatment module 20 is reduced, and the influence of the air source piece 31 on the fitting degree of the treatment module 20 and a human body is reduced; the belt 40 may also be used to mount a stationary host or the like.

Further, a warning module is further arranged on the defibrillator body 10, and a loudspeaker is arranged on the warning module and can give out warning sound to remind people before electric shock. The warning module sends out warning sound before the electric shock starts so as to remind that the electric shock defibrillation is about to be carried out.

Further, the defibrillator body 10 may be of a single-shoulder type or a double-shoulder type, and the respective modules are detachably fixed to the defibrillator body 10. The structure of defibrillator body 10 is selected for use as required, and the module of detachable makes things convenient for user's regular washing.

According to another aspect of the present invention, there is provided an operation method of a wearable external defibrillator, which is implemented based on the wearable external defibrillator of any one of claims 1 to 5 above, and comprises the steps of:

s4: defibrillation is performed.

The operation method is provided with a monitoring module, a rechecking module and a warning module, the monitoring module monitors human body data in sequence and analyzes and judges the human body data, and the rechecking module is started if the human body data meet the electric shock condition; running a cardiac fibrillation and/or cardiac ventricular rapid judgment program, performing secondary judgment on the signals collected by the monitoring module, and starting a warning module if the signals meet the electric shock condition; the warning module sends out the warning of about to carry out the electric shock, reminds the patient or people around to carry out the electric shock defibrillation operation, if in the warning set time, someone feeds back and then stops the electric shock, and nobody feeds back and then enters the defibrillation preparation program, finally, carries out the electric shock defibrillation.

Further, in S1, the monitoring content for the human body includes a heart rate signal, a respiration signal, and an attitude signal, and when all three signals are abnormal, the conditions are met and the process proceeds to S2; and the rechecking module starts a heart chamber fibrillation and/or heart fast chamber speed judging program to process the heart rhythm signal obtained in the step S1 again to judge whether the heart rhythm signal accords with the defibrillation shock heart rhythm or not. In S1, the monitoring module monitors three signals, i.e., a cardiac rhythm signal, a respiration signal, and an attitude signal, and determines that the three signals are all abnormal and meet the condition of electric shock, and then the method goes to S2, i.e., the rechecking module is started; the rechecking module processes the heart rhythm signal obtained by the monitoring module again to judge whether the data accords with the defibrillation electric shock heart rhythm; the method of rechecking is arranged, so that data can be analyzed more comprehensively, the accuracy of rhythm analysis can be improved, and the accuracy of electric shock is improved.

Further, in S3, the active feedback information is provided by pressing the stop button, and the defibrillation operation in S4 is not performed. The warning module is used for sending a warning to prompt that electric shock is about to be carried out before defibrillation is started, and a person receiving a warning signal can feed back information within a set time and stop an electric shock program in a key pressing mode; the electric shock program can be set without information feedback.

Further, defibrillation comprises the steps of:

s4-1: ventilating the electrode shell 22, and expanding the electrode shell 22 and pressing the conductive foil 21 to be attached to the skin;

s4-2: data detection and judgment, when the impedance between the skin and the conductive foil 21 is reduced to a set value or the air pressure in the electrode shell 22 is increased to a set value, electric shock defibrillation is immediately carried out.

When in defibrillation, the conductive foil 21 needs to be attached to the skin, and ventilation can be conducted into the electrode shell 22, so that the conductive foil 21 meets the condition of attaching to the skin; in order to achieve better defibrillation effect, two data, namely impedance between the skin and the conductive foil 21 and air pressure in the electrode shell 22, are monitored, and when at least one of the two data reaches a set value, an electric shock is started to defibrillate.

The therapy modules 20 are provided in two parts and are respectively provided at the upper and lower parts of the defibrillator body 10.

Referring to fig. 3, the defibrillator body 10 may be fixed to the human body by (1) a strap, or (2) nylon, or (3) a hook or a snap, or (4) a button or a snap, which is specifically selected and can be adjusted adaptively according to the habit of the patient. The defibrillator body 10 can be made of leather, textile materials, rubber or plastics; and each module can be designed to meet the water sealing condition so as to achieve the waterproof effect.

Referring to fig. 4, the gas supply member 31 may be directly disposed in the flexible electrode housing 22, which is a schematic view of the mounting position of the gas supply member 31 taken in two different directions.

As shown in fig. 5, the gas supply 31 may be disposed directly outside the flexible electrode housing 22.

Referring to fig. 6, there is shown a defibrillator body 10 in a double shoulder harness configuration in which two upper therapy modules 20 may be provided, which conforms to a back configuration to avoid failure on a side.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an external defibrillator of wearing formula, its characterized in that, includes the defibrillator body, be equipped with monitoring module, rechecking module, treatment module on the defibrillator body, monitoring module's detected content includes rhythm of the heart signal, respiratory signal, gesture signal, the chamber of the heart is quivered in the operation of rechecking module and/or the fast judgement procedure in heart ventricle, treatment module contacts through conducting foil and human skin.

2. The wearable external defibrillator of claim 1 wherein the therapy module is provided in two and separated upper and lower portions of the defibrillator body, and the conductive foil is connected to an electrode housing that is inflatable and securable to the defibrillator body after ventilation.

3. The wearable external defibrillator of claim 2, wherein the defibrillator body is fixed with an air supply component, the air supply component is connected to the electrode housing through an air duct, and the defibrillator body is further provided with a belt, the belt being located below the therapy module.

4. The wearable external defibrillator of claim 1, wherein the defibrillator body is further provided with a warning module, and the warning module is provided with a speaker capable of emitting warning sound to remind people before electric shock.

5. The wearable external defibrillator of claim 1 wherein the defibrillator body can be one-shoulder or two-shoulder and each module is removably secured to the defibrillator body.

6. A method of operating a wearable external defibrillator, the method being implemented based on the wearable external defibrillator of any of claims 1-5 and comprising the steps of:

s4: defibrillation is performed.

7. The method of operating a wearable external defibrillator of claim 6 wherein in S1, the monitoring content of the human body comprises heart rate signal, respiration signal, posture signal, when all three signals are abnormal, the condition is satisfied and the process proceeds to S2; and the rechecking module starts a heart chamber fibrillation and/or heart fast chamber speed judging program to process the heart rhythm signal obtained in the step S1 again to judge whether the heart rhythm signal accords with the defibrillation shock heart rhythm or not.

8. The method of operating a wearable external defibrillator of claim 6 wherein the alerting is by sounding an alarm and/or flashing a light at S3, and wherein the set time of the alerting is no longer than 30 seconds.

9. The method of operating a wearable external defibrillator of claim 6 wherein the active feedback information is provided by pressing a stop button at S3 without entering defibrillation operation at S4.

10. The method of operating a wearable external defibrillator of claim 6 wherein defibrillation comprises the steps of:

s4-2: and (4) data detection and judgment, when the impedance between the skin and the conductive foil is reduced to a set value or the air pressure in the electrode shell is increased to a set value, electric shock defibrillation is immediately carried out.