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Title:
A HANDHELD ECG MONITERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/220451
Kind Code:
A1
Abstract:
The present invention discloses a handheld ECG monitoring device that is completely leadless and provides accurate and reliable readings as and when required. This is achieved by using three sensors in the ECG device. The two sensors are placed at the top of the ECG device and the third sensor is located sidewise of the ECG device. The ECG devices gets activated by pressing a switch on the device. In operation, when the user touches the top sensors with his/her thumbs, a single lead ECG is obtained by measuring voltage generated by his/her heart muscles. The third side sensor is then used to take and record readings from chest to obtain a full 12-lead ECG. This ECG device can be used in an in-home environment without the need for any expert assistance, free from complicated wiring and transmits sufficient recorded data for therapeutic or diagnostic use by health care personnel.

Inventors:
RASTOGI RAHUL (IN)
RASTOGI NEHA (IN)
Application Number:
PCT/IN2019/050365
Publication Date:
November 21, 2019
Filing Date:
May 08, 2019
Export Citation:
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Assignee:
RASTOGI RAHUL (IN)
RASTOGI NEHA (IN)
International Classes:
A61B5/0402
Foreign References:
KR101012810B12011-02-08
US20100204552A12010-08-12
Attorney, Agent or Firm:
MEWAR, Sonali et al. (IN)
Download PDF:
Claims:
The claims:

1. A portable Electro Cardio Gram (ECG) monitoring device comprising:

a housing having at least two surfaces;

a first and a second sensor integrally placed on an upper surface of the housing, the first and the second sensors configured to record measurements of two thumbs of a user;

a third sensor integrally placed on a surface other than the upper surface of the housing, said third sensor in combination with any of the first or the second sensor, configured to record sequential measurements at locations VI, V2, V3, V4, V5, V6, LL on a body of the user;

a processor located within the housing and coupled to the first, second and the third sensors, the processor configured to process measurements received from the three sensors; and

a memory located within said housing and coupled to the processor, the memory configured to store data for measurements recorded by the three sensors. 2. The device of claim 1, wherein the device gets initialized by pressing an on/off switch on the device or by touching any combination of two sensors out of the first, second and third sensors.

3. The device of claim 1, wherein the device is initialized by sensing human touch on one of the first, second or third electrodes.

4. The device of claim 1, further comprising a wireless communication unit coupled to said processor for transmitting processed measurements to a remote processing device.

5. The device of claim 1, wherein the device is configured to take measurements at locations VI, V2, V3, V4, V5, V6, LL by sequentially moving the third sensor over these locations while simultaneously holding the device either at the first or the second sensor.

6. A device for processing ECG readings comprising:

a memory;

a processor coupled to the memory, said processor configured to: receive ECG measurements from an ECG monitoring device;

process received ECG measurements; and

generate an ECG report for the review of a user; 7. The device of claim 7, further comprises a display unit to display the ECG report.

8. The device of claim 7, wherein the processor is configured to provide visual indications to guide the user of plurality of locations on body of the user.

9. The device of claim 7, wherein said processor is comprised in a computing device selected from a group consisting of a smartphone, a laptop, a cellular telephone, PDA.

Description:
“A HANDHELD ECG MONITERING DEVICE” FIELD OF THE INVENTION

[0001] The present invention relates to heart monitoring devices and particularly to a handheld ECG monitoring device.

BACKGROUND

[0002] The information in this section merely provide background information related to the present disclosure and may not constitute prior art(s). Cardiovascular disease (CVD) still remains a main cause of morbidity and mortality and consequently early diagnosis is of paramount importance. However, many cardiovascular diseases are preventable through early detection and treatment (e.g., of arrhythmia or atrial fibrillation), attention to genetic predisposition, nutrition, and activities of daily living. The early detection of cardiovascular disease can be a difference between life and death. For example, early ECG recordings during first hour of chest pain not only influence time of transport to nearest hospital with the catheterization laboratory but also increase the effectiveness of treatment and improve patients’ survival ratio.

[0003] Sometimes such early detection of CVD is not possible due considerable distance of hospital or diagnostics center from patient’s home. This may cause a delay in reaching hospital or diagnostics center. Due to this late arrival at hospital, possible early symptoms of the CVD may lost completely, and ECG recording machine/device may provide either a normal reading or a misinterpreted reading of the CVD. Another factor is that, most of the ECG recording devices located at the hospitals/ diagnostics center are large machines which are quite bulky and complex, and require an expert assistance to operate them.

[0004] With the advent of technology, many solutions in the form of portable ECG recording devices are available in the market that aids a person to capture early detection of CVD. With the help of these, a person may be treated well in time depending on the type and nature of the CVD detected, provided a result/report for the same is shared with the doctor/hospital in time also. However, such existing solutions for recording ECG are unable to provide accuracy and reliability of the ECG record/measurement.

[0005] Therefore, it is highly desirable to provide an improved and efficient device for heart-rate and ECG determination with reliable accuracy.

SUMMARY OF THE INVENTION

[0006] One or more shortcomings of the prior art are overcome, and additional advantages are provided by the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the disclosure.

[0007] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.

[0008] In an aspect, the present disclosure provides a portable Electro Cardio Gram (ECG) monitoring device. The device comprises a housing having at least two surfaces; a first and a second sensor integrally placed on an upper surface of the housing, the first and the second sensors configured to record measurements of two thumbs of a user; a third sensor integrally placed on a surface other than the upper surface of the housing, said third sensor in combination with any of the first or the second sensor, configured to record sequential measurements at locations VI, V2, V3, V4, V5, V6, LL on a body of the user; a processor located within the housing and coupled to the first, second and the third sensors, the processor configured to process measurements received from the three sensors; and a memory located within said housing and coupled to the processor, the memory configured to store data for measurements recorded by the three sensors.

[0009] In another aspect, the present disclosure provides a device, wherein the device gets initialized by pressing an on/off switch on the device or by touching any combination of two sensors out of the first, second and third sensors. [0010] In yet another aspect, the present disclosure provides a device, wherein the device is initialized by sensing human touch on one of the first, second or third electrodes.

[0011] In another aspect, the present disclosure provides a device that further comprises a wireless communication unit coupled to said processor for transmitting processed measurements to a remote processing device.

[0012] In yet another aspect, the present disclosure provides a device, wherein the device is configured to take measurements at locations VI, V2, V3, V4, V5, V6, LL by sequentially moving the third sensor over these locations while simultaneously holding the device either at the first or the second sensor.

[0013] In an aspect, the present disclosure provides a device for processing ECG readings. The device comprising a memory; a processor coupled to the memory, said processor configured to receive ECG measurements from an ECG monitoring device; process received ECG measurements; and generate an ECG report for the review of a user;

[0014] In another aspect, the present disclosure provides a device that further comprises a display unit to display the ECG report.

[0015] In yet another aspect, the present disclosure provides a device, wherein the processor is configured to provide visual indications to guide the user of plurality of locations on body of the user.

[0016] In yet another aspect, the present disclosure provides a device, wherein said processor is comprised in a computing device selected from a group consisting of a smartphone, a laptop, a cellular telephone, PDA.

OBJECTIVE

[0017] It is an objective of the present disclosure to provide a handheld l2-lead ECG monitoring device that can be used to obtain accurate and reliable readings.

[0018] Another objective of the present disclosure is to provide a handheld l2-lead ECG monitoring device that can used with ease, without any expert assistance anywhere. [0019] Another object of the present disclosure is to a handheld l2-lead ECG monitoring device that provides an interpreted ECG report which can be transmitted to a doctor/ diagnostics center immediately to treat patient in time.

BREIF DESCRIPTION OF DRAWINGS

[0020] Further aspects and advantages of the present invention will be readily understood from the following detailed description with reference to the accompanying drawings. Reference numerals have been used to refer to identical or similar functionally similar elements. The figures together with a detailed description below, are incorporated in and form part of the specification, and serve to further illustrate the embodiments and explain various principles and advantages, in accordance with the present invention wherein:

[0021] Fig. 1 illustrates an exemplary embodiment of the handheld l2-lead ECG monitoring device according to an aspect of the present disclosure.

[0022] Fig. 2 illustrates a complete process of 12 lead ECG recording by the handheld l2-lead ECG monitoring device according to an embodiment of the present disclosure.

[0023] Fig. 3a illustrates a user interface of the mobile application at user’s smartphone according to an embodiment of the present disclosure.

[0024] Fig. 3b illustrates an exemplary architecture of user’s smartphone or mobile device 300.

[0025] Fig. 4 illustrates a block diagram of the ECG device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

[0026] Referring now to the drawings, there is shown an illustrative embodiment of the invention a handheld l2-lead ECG monitoring device. It should be understood that the invention is susceptible to various modifications and alternative forms; specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It will be appreciated as the description proceeds that the invention may be realized in different embodiments. [0027] Before describing in detail embodiments, it may be observed that the novelty and inventive step that are in accordance with the present invention reside in construction of the handheld l2-lead ECG monitoring device, accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

[0028] The present disclosure is an advanced handheld ECG monitoring device or sensing device that records and sends recorded ECG data by means of a wireless data link to an associated external device having a display for viewing the ECG data. This external device for example, could be a mobile communication device, a personal computer or laptop etc., but not limited to such devices. The ECG device transmits filtered raw data to the associated external device display device where the raw data is processed, analyzed and displayed. The external communication device prepares a full l2-lead report for user’s review. Immediately or later, this report can be shared with a remote data receiving device of a recipient (e. g. a doctor or a diagnostics center) for further consultation and treatment.

[0029] The device of the present disclosure is intended for both home-based ECG monitoring and in a clinic/diagnostics center. The ECG device of the present disclosure is intended for self-testing by healthy people, who wish to develop a self testing long term routine and, for users who have already experienced transient symptoms indicating cardiac abnormality. Associated software/mobile application at user’s mobile device, allows the users to download the recorded data stored at the cloud. The user may download the data to a variety of devices having storage capabilities (including personal computer, laptops, palmtops, smart phones etc.) for the purpose of storing it for personal use or to make it available to their physicians/doctors retrospectively. The present invention achieves these advantage(s) in a manner as described below.

[0030] Fig. 1 refers to an embodiment of the presently disclosed ECG device 100. Broadly, the ECG device includes three sensors to record l2-leads. The two sensors, namely a first sensor 101 and a second sensor 102 are at the top of the ECG device 100 and the third sensor 103 is located sidewise of the ECG device 100. The ECG device 100 gets activated by pressing a switch on the device or by sensing human touch or by touching any combination of two sensors out of the first, second and third sensors. At any given point of time only two sensors are used. Further, it may be noted that the three sensors can be silver/silver chloride or Ag/AgCl coated on Plastic or Cloth or Metallic Surface capable of transmitting current AC/DC or both.

[0031] In operation, when the user touches the top sensors with his/her thumbs, a single lead ECG is obtained by measuring voltage generated by his/her heart muscles. The third side sensor 103 is then used, in combination with right/second sensor 102 to take and record readings from chest to obtain leads namely VI, V2, V3, V4, V5, V6, LL. Post this, a processor of the ECG device will process the captured leads to full 12 Lead ECG In one embodiment, the third sensor 103 may be used in combination with any one of the first and second sensors to obtain a full 12 lead ECG.

[0032] Fig. 2 illustrates a complete process of 12 lead ECG recording by the handheld l2-lead ECG monitoring device according to an aspect of the present disclosure. The full l2-lead recording is completed in 8 steps as shown.

[0033] As indicated in above paragraphs, after the ECG device 100 is activated, the device gets connected to the mobile application at user’s smartphone. The non limiting examples of the mobile application may be an Android or iphone or Windows Mobile application. The connection is established via the NFC-protocol, Bluetooth or other short-range wireless data transmission protocols. Every time the ECG device 100 is ready to record an ECG lead, a screen is presented at the user’s smartphone to indicate that each lead measurement will last for a duration of 15 seconds and then a next screen will start. In a first step, when a user places his/her thumbs on the two top sensors, namely the first sensor 101 and the second sensor 102, a single lead ECG is obtained. As indicated in this figure, to take full l2-lead ECG, the third sensor 103 is placed at various points of user’s chest, while a thumb of the user is placed at any of the first sensor 101 or the second sensor 102. For example, the third sensor 103 at the ECG device is placed at seven different places of the user’s chest and the readings are sent to the user’s smartphone for display. Thus, by sequentially following said 8 steps, a full l2-lead ECG can be recorded and transmitted to the user’s smartphone. Such l2-lead ECG data is then processed and analyzed by the user’s smartphone and a complete report is generated and stored. This report can then be transmitted immediately to a doctor for his review and consultation.

[0034] Fig. 3a represents a user interface of the mobile application at user’s smartphone. The user can interactively manage his/her recording session using this application. For example, while taking ECG recording, each for 15 seconds, the user may skip/exit any screen and may continue to the next. In this way, desirable number of ECG leads can be recorded and reported. Since, the ECG recordings are stored over a cloud network, the user may anytime download it for review and sharing if needed, via the mobile application.

[0035] Fig. 3b illustrates an exemplary architecture of user’s smartphone or mobile device 300. The mobile device 300 may include an application programming interface for building software applications, a memory 303 to store data related to its processing and recorded ECG data 304, a processing unit and a communication unit connected to a bus (not shown in the fig.). A processing unit may further comprise a processor 302 and a plurality of processing subsystems.

[0036] Typically, data recorded at the ECG device 300 is received and may be stored in the memory 303. For the purposes of this description, the term memory refers to all memory accessible by the mobile device 300. The memory may be volatile or nonvolatile memory, such as flash memory, or a mixture of both. The mobile device may comprise various modules 305 that comprises other modules such as registration module 310 to register the user when the mobile application is used for the first time, a monitoring module 308 to monitor the time duration of each lead recorded at the ECG device, a processing module 309 and a report generation module 306, to process raw recorded ECG data and to generate a report out of it. The mobile device 300 may comprise other modules 307 as well to support functioning of the mobile device. The various embodiments described above may be implemented on a typical mobile device for example but not limited there to, cellular phones, laptops, desktops, PDAs to execute the embodiment methods described herein.

[0037] Referring to FIG. 4, a block diagram of the ECG device 400 according to an embodiment of the present invention is illustrated. The device 400 comprises a processor 402, a power supply 401, filter/amplifier unit or amplifier 403, a wireless communication unit 406, memory unit 404, electrodes/sensors 405a, 405b, 405c. A suitable filter for use in the present disclosure is typically a basic analog low pass anti-aliasing filter to reduce A/D sampling artifacts. More advanced filtering can be done by the user’s smartphone processor to keep the ECG device complexity down.

[0038] In the exemplified embodiment, the processor of the ECG device 400 comprises signal-conditional means, data processing means, data acquisition means, and analog-to-digital converter (A/D) 402a, and an internal clock 402b. The processor 402 is operably coupled to and configured to control the interaction of the power supply 401, filter/amplifier unit 403, the wireless communication unit 406, memory 404, electrodes/sensors 405a, 405b, 405c. Specifically, processor 402 must be configured to the ECG reading specifics of electrodes/sensors 405a, 405b and 405c configured within the ECG device 400. The clock 402b is configured to provide time-keeping means to allow each measurement of the ECG device 400 to be time-stamped and stored in the memory unit. The power supply 401 is operably coupled to and configured to supply power to the processor 402, amplifier unit 403, the wireless communication unit 406, memory 404, electrodes 405a, 405b and 405c. The memory unit 404 is operably coupled to the processor 402 and configured to store data and to transfer data to wireless communications unit 406 via processor 402. After performing necessary filtering and conversion operations on input data received from electrodes/sensors, the wireless communication unit 406 transfers the data to the user’s smartphone for further filtering and analysis.

[0039] The processor 402 may comprise a plurality of processing subsystems. The processor 402 may be any programmable microprocessor, microcomputer or multiple processor chip or chips or an ASIC that can be configured to perform a variety of functions, including the functions of the various embodiments described above.

[0040] A processor may have an internal memory or an external memory to store related data. Typically, data may be stored in the memory before they are accessed and loaded into the processor. For the purposes of this description, the term memory refers to all memory accessible by the processor, including external memory and memory within the processor itself. The memory may be volatile or nonvolatile memory, such as flash memory, or a mixture of both.

[0041] According to another embodiment of this disclosure, this ECG device may include various other complex electronic circuitry/module (s) to perform above discussed and other related functions/embodiments of the present disclosure.

[0042] Accordingly, from the above disclosure, it may be worth noted that the present invention provides a handheld ECG recording device and a related smart phone mobile application for data processing, analysis, display and reporting. Thus, the present ECG device provides early detection of ECG at ease of the user and by transmitting data related to ECG records increase the chances of survival and effectiveness of treatment of a patient.

[0043] The foregoing description of the various embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, and instead the claims should be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0044] While the invention has been described with reference to a preferred embodiment, it is apparent that variations and modifications will occur without departing the spirit and scope of the invention. It is therefore contemplated that the present disclosure covers any and all modifications, variations or equivalents that fall within the scope of the basic underlying principles disclosed above.