CN211583139U - Electrocardiograph based on smart phone - Google Patents

Abstract

The utility model discloses a portable electrocardio appearance based on smart mobile phone, its characterized in that: the electrocardiograph comprises an electrocardiograph sensor, a USB interface and a shell, wherein the shell is provided with an exposed driving knob and a containing cavity used for containing the electrocardiograph sensor and the USB interface, a transmission mechanism is arranged in the shell, the transmission mechanism is provided with a driving part fixed with the driving knob, a first driven part connected with the electrocardiograph sensor and a second driven part connected with the USB interface, and the first driven part and the second driven part are synchronously far away from each other or close to each other. The utility model discloses break through traditional heart electrograph instrument heavy, the health needs the tie to lie, detects inconvenient drawback, makes portable instrument, is favorable to family and individual to use, fills market blank.

Description

A smartphone-based electrocardiograph

technical field

The utility model relates to an electrocardiograph based on a smart phone.

Background technique

The heart is one of the most important organs of the human body. Heart diseases have invaded human life, such as coronary heart disease, myocardial infarction, myocarditis and so on. Therefore, the monitoring of the heart has become an indispensable means of disease prevention and early examination. Conventional ECG monitoring equipment is bulky, expensive and inconvenient to carry. However, with the improvement of social living standards, the familyization of medical devices has gradually entered our daily life. The functions of family-based ECG instruments do not have professional large-scale medical equipment, but they have the advantages of small size and simple operation. At the same time, they can be used in To a certain extent, it satisfies the basic application of people.

Smartphones have gradually penetrated into and are widely used in people's daily life, and people's requirements for smart phones have become higher and higher. Smartphones have become a new smart device that is loved by the public after PCs. It turns out that the charging interface on the mobile phone has gradually evolved into a data communication interface, and its functions have become more and more powerful. It is completely the same as the USB interface on the computer.

At present, most of ECG detection still relies on large-scale ECG instruments in hospitals, which are bulky, expensive and inconvenient to carry. The market application of portable ECG instruments is basically blank. The conventional electrocardiograph can only record the electrical activity of the heart when the patient is still lying down due to its bulkiness. The duration is short and the amount of information obtained is very small, so the probability of some abnormal situations being discovered within a limited time is also very low. The recorded ECG information is limited and the processing function of ECG signals is not perfect. After the ECG information is uploaded to the server of the ECG center, it is difficult for doctors to obtain more comprehensive ECG information, which in turn affects the doctor's treatment of the disease. correct diagnosis. Most of the digital signal processors are used as the core device for processing and analyzing ECG data. For functions such as data communication and program storage, additional corresponding devices are generally required, so the structure is relatively complex, the volume and power consumption are relatively large, and the price is also high. higher, which is unbearable for most patients. In addition to the above-mentioned technical shortcomings, most electrocardiogram detectors on the market use micro-displays on the display, which is far inferior to the personal experience brought by mobile phones in human-computer interaction, and it is difficult to optimize human-computer interaction to achieve human-computer interaction on mobile phones Level.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides an electrocardiograph based on a smart phone.

In order to achieve the above purpose, the present utility model adopts the following technical solutions: a portable electrocardiograph based on a smart phone, characterized in that: the electrocardiograph comprises an electrocardiograph, a USB interface and a casing, and the casing has an exposed drive knob and is used for The accommodating cavity for accommodating the ECG sensor and the USB interface, the casing has a transmission mechanism, the transmission mechanism has a driving piece fixed with the drive knob, a first driven piece connected with the ECG sensor and a second driven piece connected with the USB interface , the first follower and the second follower move away from or approach each other synchronously. Compared with the ordinary electrocardiograph on the market at present; the electrocardiograph of the utility model has a simple structure and is easy to carry; The volume of the electrocardiograph is reduced, making the electrocardiograph suitable for home use, smaller in size, and easy to carry.

Further; the transmission mechanism is a rack and pinion mechanism, the driving member is a gear, the first driven member is a first rack, the second driven member is a second rack, and the first driven member and the second driven member are symmetrical Arrangement, the USB interface and the ECG sensor are located on both sides of the gear. The transmission mechanism can realize the telescopic performance of the ECG sensor and the USB interface in the accommodating cavity, so that the ECG sensor and the USB interface of the ECG can be effectively protected, and at the same time, it can also make the ECG more convenient to carry and store. The transmission of the rack and pinion can achieve good synchronization performance.

Further; the first end of the first rack is connected to the USB interface, and the second end of the first rack is provided with a limit block; the first end of the second rack is provided with a limit block, and the second end of the second rack is connected ECG sensor; the two first ends are located on the same side; the first rack can drive the USB interface, and the second rack can drive the ECG sensor; the limit block can play the role of initializing the first rack or the second rack Position or end position limit action.

Further; there is at least one set of ECG sensors, a set of ECG sensors includes two probes arranged symmetrically, the edge of the casing is provided with a probe guide channel for guiding the movement of the probe, and the casing has a USB guide channel for guiding the movement of the USB interface; the ECG sensor It is mainly used for finger signal acquisition, and can collect ECG data signals by finger pressing.

Further; the center line of the USB guide channel is aligned with the symmetry axis of the two probe guide channels; the symmetrical design is more ergonomic, and can make the user feel more comfortable when using.

Further; the shell is oval, the probe guide channels are symmetrically arranged on both sides of the short axis of the ellipse, the first rack and the second rack are parallel to the short axis, the gear and the shell are centered; the oval shell design can save more energy space.

Further, a guide plate parallel to the first follower and the second follower is also arranged in the casing, and the guide plate can be clearance fit with the first follower and the second follower.

Further; the length of the guide plate is greater than the length of the first follower or the second follower.

Further; the extension line of the probe guide channel forms an included angle of 45 degrees with the first follower.

Further; the USB interface is located on the short diameter of the case.

To sum up, the utility model breaks through the disadvantages of the traditional electrocardiogram instrument, which is cumbersome, the body needs to lie flat, and the detection is inconvenient. The electrocardiogram is prone to accidental phenomena and cannot be used as a description of the regularity of the electrocardiogram. At the same time, it solves the problem that the conventional ECG information processing is not perfect, and the fluctuation of ECG information between the peaks is not clear enough, thus affecting the doctor's judgment on heart disease and easily causing misdiagnosis. In addition, it also solves the problems of inconvenient use and unsightly appearance after connection with mobile phone external devices caused by the different positions of the data transmission interfaces of different models of mobile phones; it also solves the problem that the power module of the traditional electrocardiogram detection instrument must have a battery for its operation. The problem of normal use only requires power supply. Whether traditional instruments use button batteries, dry batteries or rechargeable batteries, they will pollute the environment in the process of production, use and disposal, and will increase the cost of use during use.

Description of drawings

FIG. 1 is a schematic diagram of the structure of the utility model in use state.

Figure 2 is a schematic diagram of the internal structure of the utility model.

3 is a schematic structural diagram of the transmission mechanism of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in Figure 1-3, a portable electrocardiograph based on a smartphone, the electrocardiograph includes an electrocardiograph sensor 1, a USB interface 2 and a housing 3, the housing 3 has an exposed drive knob 4 and is used for accommodating the electrocardiographic sensor 1 and the accommodating cavity 31 of the USB interface 2, the casing 3 has a transmission mechanism, and the transmission mechanism has a driving member 41 fixed with the driving knob 4, a first driven member 51 connected with the ECG sensor 1, and connected with the USB interface 2. For the second follower 52, the first follower 51 and the second follower 52 move away from or approach each other synchronously. Compared with the ordinary electrocardiograph on the market at present; the electrocardiograph of the utility model has a simple structure and is easy to carry; The volume of the electrocardiograph is reduced, making the electrocardiograph suitable for home use, smaller in size, and easy to carry. The present invention can control the ECG sensor 1 and the USB interface 2 to move at the same time through the driving knob 4, that is, when in use, the driving knob 4 can simultaneously extend the ECG sensor 1 and the USB interface 2 to the outside of the casing 3; when using After completion, turning the drive knob 4 in the opposite direction can simultaneously receive the ECG sensor 1 and the USB interface 2 into the housing 3 .

The transmission mechanism is a rack and pinion mechanism, the driving element is the gear 43, the first driven element is the first rack 51, the second driven element is the second rack 52, and the first driven element and the second driven element are symmetrical Arrangement, the USB interface 2 and the ECG sensor 1 are respectively located on both sides of the gear 43; the first end of the first rack 51 is connected to the USB interface 2, and the second end of the first rack 51 is provided with a limit block 53; the second tooth The first end of the rack 52 is provided with a limit block 53 , the second end of the second rack 52 is connected to the ECG sensor 1 ; the first ends of the first rack 51 and the second rack 52 are located on the same side. The first rack 51 and the second rack 52 are located on the left and right sides of the gear 43; the ECG sensor 1 and the USB interface 2 are located on the upper and lower sides of the gear 43; The drive knob 4 is rotated in the form of artificial rotation, thereby causing the rotation of the gear 43, thereby driving the first rack 51 and the second rack 52 to move in the vertical direction. In addition, in order to ensure that the first rack 51 and the second rack 52 always keep moving in the vertical direction, a guide plate 54 parallel to the first follower and the second follower is also provided in the casing 3, and the guide plate 54 can be The first follower and the second follower are in clearance fit. That is to say, the outer sides of the first rack 51 and the second rack 52 are in clearance fit with the inner sides of the two guide plates 54, and the guide plates 54 play a guiding role. Preferably, the length of the guide plates 54 is greater than that of the first follower or the second follower. The length of the piece is designed in this way, no matter how many times the first follower or the second follower moves, it can ensure that the movement direction of the first follower or the second follower is always in the vertical direction.

Specifically, when the gear 43 rotates counterclockwise, the distance between the two limit blocks 53 becomes smaller and smaller, that is, the ECG sensor 1 and the USB interface 2 are received inside the casing 3; when the gear 43 rotates clockwise, the two limit blocks 53 become smaller and smaller. The distance between the blocks 53 becomes larger and larger; that is, the ECG sensor 1 and the USB interface 2 are extended to the outside of the housing 3 . The limit block 53 mainly acts as a limit, that is, when the ECG sensor 1 and the USB interface 2 are received into the casing 3, one side of the limit block 53 is in contact with the gear 43, at this time, the ECG sensor 1 and the USB interface 2 are received into the final position inside the casing; when the ECG sensor 1 and the USB interface 2 are extended to the outside of the casing 3; the other side of the limit block 53 can be in contact with the inner wall of the casing That is, the final position where the ECG sensor 1 and the USB interface 2 are extended to the outside of the casing 3 .

The ECG sensor 1 has at least one set, and the set of ECG sensor 1 includes two probes 11 arranged symmetrically. The edge of the housing 3 is provided with a probe guide channel 32 that guides the movement of the probe, and the housing 3 has a USB guide channel that guides the movement of the USB interface 2 . 33; The center line of the USB guide channel 33 is aligned with the symmetry axis of the two probe guide channels 32; the housing 3 is oval, and the probe guide channel 32 is symmetrically arranged on both sides of the short axis of the ellipse. The extension line of the channel 32 forms an included angle of 45 degrees with the first follower, and the design of the included angle of 45 degrees is mainly designed for the comfort of two human fingers during testing. In addition, the first rack 51 and the second rack 52 are both parallel to the short axis, and the gear 43 is aligned with the housing 3 . The shell 3 is oval, and the oval design can make the whole electrocardiograph smaller, and can also meet the motion trajectory of the electrocardiograph 1. The gear 43 is aligned with the shell 3, that is, at the center of the ellipse, and the USB interface 2 It is located on the short diameter of the casing and on the upper part of the casing 3 ; a group of ECG sensors 1 are located at the lower part of the casing, and the oval casing can save space for the USB interface 2 or the ECG sensor 1 .

To sum up, the utility model adopts the low-power MSP430 single-chip microcomputer as the main control chip, uses the electrocardiogram sensor 1 to collect electrocardiogram data, and the sampled analog signal is amplified and A/D converted inside the sensor, and then the analog signal is converted. The digital signal is sent to the single-chip microcomputer, and the final data is obtained after the operation of the single-chip computer. Then, the final data is transmitted to the mobile phone APP through the USB output interface 2 for further processing, display and other operations, and then the APP sends the test results to the remote server through the mobile phone network for data statistics. The power used in the working process of the utility model is provided by the OTG reverse charging function of the mobile phone. Compared with the common electrocardiograph, the electrocardiograph of the utility model has a reduced power supply module and a display module; the volume of the electrocardiograph can be greatly reduced, thereby making the electrocardiograph easy to carry.

During the diagnostic test, firstly, the device of the present invention is inserted into the data transmission interface of the mobile phone, the red LED on the device will light up, and the supporting APP in the mobile phone will be automatically awakened. When you are ready to perform ECG measurement, press the "Start Detection" button on the mobile phone interface, put the index fingers of both hands on the ECG sensor 1, and then you will hear the sound of "di" to prompt the instrument to start detection. The curve is gradually stabilized and the countdown is completed in 20 seconds. The current ECG curve real-time data and the test results of the displayed heart rate value are sent by the instrument to the mobile APP. The mobile APP displays the test result data, and then sends the test results to the server through the mobile network. Complete Test, the mobile phone APP prompts to pull out the tester, and the mobile phone enters the state before the test.

Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Claims (9)

1. An electrocardiograph based on a smart phone is characterized in that; the electrocardiograph comprises an electrocardiograph sensor, a USB interface and a shell, wherein the shell is provided with an exposed driving knob and a containing cavity used for containing the electrocardiograph sensor and the USB interface, a transmission mechanism is arranged in the shell, the transmission mechanism is provided with a driving part fixed with the driving knob, a first driven part connected with the electrocardiograph sensor and a second driven part connected with the USB interface, and the first driven part and the second driven part are synchronously far away from each other or close to each other.

2. The smartphone-based electrocardiograph of claim 1, wherein: the transmission mechanism is a gear rack mechanism, the driving part is a gear, the first driven part is a first rack, the second driven part is a second rack, the first driven part and the second driven part are symmetrically arranged, and the USB interface and the electrocardio sensor are respectively positioned at two sides of the gear.

3. The smartphone-based electrocardiograph of claim 1, wherein: the first end of the first rack is connected with the USB interface, and the second end of the first rack is provided with a limiting block; a first end of the second rack is provided with a limiting block, and a second end of the second rack is connected with the electrocardio sensor; the two first ends are located on the same side.

4. The smartphone-based electrocardiograph of claim 3, wherein: the electrocardio-sensor has at least one group, one group of electrocardio-sensor comprises two probes which are symmetrically arranged, the edge of the shell is provided with a probe guide channel for guiding the probe to move, and the shell is provided with a USB guide channel for guiding the USB interface to move.

5. The smartphone-based electrocardiograph of claim 3, wherein: the midline of the USB guide channel is aligned with the symmetry axis of the two probe guide channels.

6. The smartphone-based electrocardiograph of claim 3, wherein: the shell is oval, and probe guide channel symmetry sets up in the both sides of oval minor axis, and first rack and second rack are all on a parallel with the minor axis, and the gear is to the shell centering.

7. The smartphone-based electrocardiograph of claim 5, wherein: and a guide plate parallel to the first driven part and the second driven part is further arranged in the shell and can be in clearance fit with the first driven part and the second driven part.

8. The smartphone-based electrocardiograph of claim 7, wherein: the length of the guide plate is greater than the length of the first driven piece or the second driven piece.

9. The smartphone-based electrocardiograph of claim 4, wherein: the extension line of the probe guide channel and the first driven piece form an included angle of 45 degrees.

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