TWM539909U - Device for detecting abnormal blood supply for heart cavity - Google Patents

Description

Device for detecting abnormal blood supply to the ventricle

This creation is about a device for measuring blood flow in the heart to detect abnormal blood supply to the ventricle. In particular, it refers to a measuring device for assisting the examination of cardiovascular diseases. The purpose is to measure the cardiovascular blood supply signal measured by the sphygmomanometer. It can be converted into a corresponding representative value, and can quickly detect whether there is a cardiovascular disease such as abnormal ventricular blood supply in the tested individual.

According to the cardiovascular disease, also known as circulatory diseases, mainly related to heart or blood vessel related diseases. Common cardiovascular diseases include Coronary artery disease, hypertensive heart disease, stroke, cardiac arrhythmia, and the like. Coronary artery disease is the blood supply to the heart due to obstruction in the coronary arteries (such as accumulation of cholesterol). If the partial obstruction is called angina, if it is completely blocked, the blood supply to the heart may be blocked. . Arrhythmia refers to irregular heartbeat (too fast or too slow) caused by abnormalities in the cardiac conduction system. Because mild arrhythmia is not clearly asymptomatic, many patients are not easily aware of whether they have arrhythmia, which can easily lead to continued deterioration of the condition and develop other life-threatening complications such as cardiac arrest, shock, sudden death, and so on.

The heart consists of two atria and two ventricles (Ventricle), in which the left ventricle receives arterial blood from the left atrium, which in turn supplies blood throughout the body. Under normal circumstances, the left ventricle myocardium can be instantaneously relaxed after each contraction, so that the blood from the pulmonary veins is quickly filled, which is the relaxation and filling of the diastolic phase; and rapid and intense contraction to push a large amount of blood into the aorta And transported to the body's arteries, which is the contraction and efflux of the systolic phase. Therefore, if the ventricle supply is abnormal, it will cause the body tissue to lose the nutrients and oxygen of the blood.

In general, the detection of cardiovascular disease can only rely on electrocardiography (ECG) and ultrasound detection. These instruments are not only expensive and complicated, but must be measured by medical personnel. After-the-fact data analysis requires professional training. The personnel can only be read, so the patient must go to the hospital for testing and cannot measure it by himself; therefore, the existing testing method is time-consuming and inconvenient.

In order to address these shortcomings, the industry has developed different devices or methods to provide personal monitoring of cardiovascular health conditions or to prevent or monitor possible cardiovascular disease to reduce mortality. For example, the Republic of China Patent Bulletin No. TW M486395 (U) discloses a "multifunctional non-invasive intelligent cardiovascular monitoring and diagnostic device" comprising: a portable host for receiving and analyzing data thereon. a display unit and an input unit; a sensing device for sensing cardiovascular related diagnostic values; and a data uploading and storage analyzing device for storing and analyzing cardiovascular related diagnostic values, all connected by wire or wirelessly With the host; by this, you can check the heart rate, blood oxygen concentration, vascular sclerosis index, blood pressure value, arrhythmia detection and heart pulse diagnosis in different parts of the body. However, the above case still needs to be provided with an electrode sensor on the left and right hands or even the foot of the subject to form a wireless electrocardiogram measurement system, and the measured result still needs to be judged by artificial wisdom to know whether it is arrhythmia or not. .

In addition, the Republic of China Patent Publication No. TW I336618 (B) discloses a "detection method for applying a health management device to simultaneously perform biometric authentication and measuring arrhythmia", which mainly includes first capturing a two-dimensional barcode image and obtaining a registered image. The user's registered template, features and physician's prescription are stored; compare the user's instant ECG with the registered template, if the correlation coefficient between the two is less than the initial threshold, confirm the user's death by the improved zero-crossing method. If the arrhythmia is irregular, it will automatically dial for help; if the correlation coefficient is greater than the initial threshold, it means that the specific user has no lethal arrhythmia. Obviously, the information obtained in the above case still needs to be interpreted by medical staff, and the detection method is more complicated.

The reason is that the creators have made many defects in the actual implementation of the existing devices for detecting cardiovascular diseases, and have been rich in design and development and practical production experience of the relevant industries for many years, and improved the use of measuring blood flow pulses to detect The device for abnormal blood supply to the ventricle is designed to convert the cardiovascular blood supply pulse signal measured by the sphygmomanometer into a corresponding representative value, and can quickly detect whether the test subject has cardiovascular diseases such as abnormal ventricular blood supply. .

In order to achieve the above-mentioned implementation purpose, the present author proposes a device for detecting abnormal blood supply to the ventricle, which comprises: a sensing unit for measuring the time spectrum of the cardiovascular blood pulse signal of the subject; a signal processor The connection sensing unit has a first microchip control unit, a second microchip control unit and a third microchip control unit, wherein the first microchip control unit analyzes and calculates each cardiovascular blood supply pulse signal. The interval between the corresponding peaks is A value, and the second microchip control unit and the third microchip control unit receive the analysis data of the first microchip control unit, and sequentially convert and calculate the analysis data; a data output unit, The signal processor is electrically connected and the analysis data is output; and a display unit is electrically connected to the data output unit to display the analysis data, thereby providing the subject to determine whether the individual has abnormal ventricular blood supply.

In one embodiment of the present invention, the sensing unit is a cuff with a sensor, which may be, for example, a blood pressure monitoring device, wherein the venous band measures the heart of the subject by a brachial artery. The blood vessel blood supply pulse signal; and wherein the sampling rate of the sensing unit is greater than or equal to 180 times/second.

In one embodiment of the present invention, the second microchip control unit is configured to (a) calculate a power spectral density of a time spectrum of a cardiovascular blood supply pulse signal, and construct (b) calculate the heart one by one. The operation of all single-wavelength power spectral densities of blood vessel blood supply signals.

In an embodiment of the present invention, the second microchip control unit uses a discrete Fourier transform to obtain an energy density value of each cardiovascular blood supply pulse signal, and a reciprocal value of a minimum frequency value is used as a B value. The third microchip control unit takes the inverse value of the minimum frequency value of each wavelet as the C value, and the inverse value of the second small frequency value as the D value, and calculates the variation value as the E value.

In one embodiment of the present invention, if the A value exceeds 600-1200 ms, the B value is less than 100 ms, the C value exceeds 100-300 ms, or the D value is greater than 200 ms, the ventricular blood supply abnormality of the subject is discriminated.

In an embodiment of the present invention, if the E value is greater than or equal to 1/10 of the average value of the A value, the ventricular blood supply abnormality of the subject is discriminated.

In this way, the creation can quickly determine whether the test subject has abnormal ventricular blood supply, and the output of the device is a numerical value rather than a complicated signal, so the subject can perform the self-interpretation without the assistance of the medical staff.

The purpose of this creation and its structural and functional advantages will be explained in accordance with the structure shown in the following figure, in conjunction with specific examples, so that the review committee can have a deeper and more specific understanding of the creation.

First, please refer to the first and second figures, which are respectively a block diagram of a preferred embodiment of the present invention and a schematic diagram of a preferred embodiment of the present invention. The present invention provides a device for detecting abnormal blood supply to the ventricle ( 1), the system includes:

A sensing unit (10) measures the time spectrum of the cardiovascular blood supply pulse signal of the subject (5). Preferably, the sampling rate of the sensing unit (10) is greater than or equal to 180 times/second. ;

A signal processor (20) is electrically connected to the sensing unit (10) and has a first microchip control unit (21), a second microchip control unit (22) and a third microchip control unit ( 23), wherein the first microchip control unit (21) analyzes and calculates an interval value corresponding to a peak of each cardiovascular blood pulse signal, and a second microchip control unit (22) and a third microchip control unit. (23) receiving the analysis data of the first microchip control unit (21), and sequentially converting and calculating the analysis data; preferably, the second microchip control unit (22) is constructed with (a) a calculation heart The power spectral density of the time spectrum of the vascular blood supply pulse signal, and the operation of (b) calculating the single spectral power spectral density of the cardiovascular blood supply pulse signal one by one; more specifically, the second microchip The control unit (22) obtains the energy density value of each cardiovascular blood supply pulse signal by using a discrete Fourier transform, and uses a reciprocal value of a minimum frequency value as a B value; the third microchip control unit (23) Take the minimum frequency value of each split wave Value as C value, and the inverted value of the second frequency smaller value as the D value, and the value of E calculated variation value;

a data output unit (30) electrically connected to the signal processor (20) for outputting the analysis data;

a display unit (40) electrically connected to the data output unit (30) for displaying the analysis data, thereby determining whether the subject (5) is abnormal in ventricular blood supply; preferably, according to the above A value and B value , C value, D value, E value; if the A value exceeds 600-1200 ms, the B value is less than 100 ms, the C value exceeds 100-300 ms or the D value is greater than 200 ms, the subject (5) ventricular blood supply abnormality is discriminated; In addition, if the E value is greater than the average value of the sum of the A values by more than 1/10, it is determined that the ventricular blood supply is abnormal.

Preferably, the sensing unit (10) may be, for example, a cuff (11) having a sensor, and may be, for example, a blood pressure monitoring device, mainly measuring a subject by a brachial artery ( 5) Cardiovascular blood supply pulse signal, and the technology of the sensing unit (10) has been well known in the art, for example, the Republic of China Patent Case No. M509630 "Heart Spectrum Sphygmomanometer" The detection unit of the functional structure, or the structure of the venous zone of the "Measurement System for Assisted Detection of Cardiovascular Diseases" No. M505914 is implemented, and therefore, it is not described in this creation.

In the actual implementation of the above preferred embodiment, firstly, a blood pressure monitoring device is used to measure the cardiovascular blood supply pulse signal of the sacral artery of the 6 subjects (5), and the sampling rate is greater than or equal to 180 times/ Second; to obtain the time spectrum of the cardiovascular blood supply pulse signal and the interval between the peaks of each cardiovascular blood supply pulse signal is A value, the 6 subjects (5) are known ventricular blood supply is normal (No. 1~3 ) 3 people with abnormal ventricular blood supply (numbers 4 to 6). Then, the signal processor (20) electrically connected to the blood pressure monitoring device sequentially analyzes and calculates the total pulse wave and the single partial wave of all the cardiovascular blood supply pulse signals, and takes the time spectrum of the collected cardiovascular blood supply pulse signal as a time spectrum. A Discrete Fourier Transform (DFT), and calculate the power spectral density of the time spectrum of the cardiovascular blood supply pulse signal to obtain the energy density value of each cardiovascular blood supply pulse signal, and take a minimum frequency The value, and thus the inverse of the minimum frequency value, is taken as the B value.

Next, the power spectral density is calculated one by one from all the single partial waves of the cardiovascular blood supply pulse signal, and the inverted value of the minimum frequency value of each partial wave is taken as the C value, and the inverted value of the second small frequency value is taken as the D value; Finally, the total value of each B, C, and D value is calculated to calculate the variation value as the E value, and the data output unit (30) of the electrical connection signal processor (20) analyzes the data A, B, C, D, and E values. The output is displayed on the display unit (40), and the A, B, C, D, and E values can be used to determine whether the subject (5) is abnormal in ventricular blood supply. The value of A may indicate the interval between two adjacent heart beats; the value of B is related to the function of ventricular function; if the value of C is too low, it may represent ischemia of the myocardium; the value of D may indicate the atrioventricular transmission. The time required, when the D value is too high may indicate transient myocardial ischemia, if the D value is unstable, it may indicate that the heart chamber transmission is blocked or coronary atherosclerosis.

Table 1 shows the average of the sum of the E and A values of the normal ventricular blood supply group (No. 1~3) and the ventricular blood supply abnormality group (abbreviated as the average value); the E value/average of the subjects with normal ventricular blood supply. All were less than 0.1; in the case of subjects with abnormal ventricular blood supply, the "number of E values/average value" was greater than 0.1.

Table I         <TABLE border="1" borderColor="#000000" width="_0001"><TBODY><tr><td> </td><td> Subject number</td><td> A total value Average value</td><td> E value</td><td> E value/average</td></tr><tr><td> Normal group</td><td> 1 </ Td><td> 135.781 </td><td> 4.05998 </td><td> 0.0299 </td></tr><tr><td> 2 </td><td> 134.852 </td>< Td> 3.48227 </td><td> 0.0258 </td></tr><tr><td> 3 </td><td> 139.917 </td><td> 3.90424 </td><td> 0.0279 </td></tr><tr><td> ventricular abnormal blood supply group</td><td> 4 </td><td> 123.615 </td><td> 24.4934 </td><td> 0.1981 </td></tr><tr><td> 5 </td><td> 146.243 </td><td> 40.413 </td><td> 0.2763 </td></tr><tr> <td> 6 </td><td> 169.379 </td><td> 46.2575 </td><td> 0.2731 </td></tr></TBODY></TABLE>

The first microchip control unit (21), the second microchip control unit (22) and the third microchip control unit (23) constructed with the fixed arithmetic conversion type in the present invention can be built in and combined with the sphygmomanometer. Therefore, the subject (5) will be able to quickly determine whether the current ventricular blood supply is normal or not by reading the "E value/average value" on the sphygmomanometer when the blood pressure is measured.

In addition, please refer to Table 2 for the A, C, and D values of the normal blood supply group (No. 7~9) and the ventricular blood supply abnormal group (No. 10~12) in the central embodiment of the present creation; The normal range value, that is, the A value is between 600-1200 ms, the C value is between 100-300 ms, and the D value is less than or equal to 200 ms. It can be seen that the case can be determined by the A, C, and D values to determine the ventricle supply of the subject. Is it normal?

Table 2: A, C, and D values for detecting normal and abnormal ventricular blood supply         <TABLE border="1" borderColor="#000000" width="_0002"><TBODY><tr><td> </td><td> Subject number</td><td> A value (600 -1200 ms) </td><td> C value (100-300 ms) </td><td> D value (≦200 ms) </td></tr><tr><td> Normal group< /td><td> 7 </td><td> 733 </td><td> 263.922 </td><td> 122.222 </td></tr><tr><td> 8 </td> <td> 750 </td><td> 262.963 </td><td> 125 </td></tr><tr><td> 9 </td><td> 788 </td><td> 290.556 </td><td> 131.481 </td></tr><tr><td> ventricular abnormal blood supply group</td><td> 10 </td><td> 1205 </td><td> 446.508 </td><td> 200.926 </td></tr><tr><td> 11 </td><td> 1216 </td><td> 464.444 </td><td> 202.778 </ Td></tr><tr><td> 12 </td><td> 1361 </td><td> 524.444 </td><td> 226.852 </td></tr></TBODY>< /TABLE>

From the above description of the device for detecting abnormal blood supply to the ventricle, the present invention has the following advantages:

1. This creation only needs to measure the brachial artery of the arm by sphygmomanometer, etc., not only need to go to the medical clinic to seek professional assistance, nor need to place the electrode on the skin for electrocardiography for a long time, which can enhance the individual's cardiovascular The convenience of monitoring health conditions.

2. The creative department has converted the complex signal corresponding to the electrocardiogram into an easily understandable numerical value (variation number) and calculated it so that the tested individual can quickly know whether there is abnormal ventricular blood supply.

In summary, the device for detecting abnormal blood supply to the ventricle of the present invention can achieve the intended use effect by the above disclosed embodiments, and the creation has not been disclosed before the application, and the company has fully complied with the patent law. Regulations and requirements. If you apply for a new type of patent in accordance with the law, you are welcome to review it and grant a patent.

However, the illustrations and descriptions disclosed above are only preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention; those who are familiar with the skill are otherwise characterized by the scope of the creation. Equivalent changes or modifications shall be considered as not departing from the design of this creation.

(1) ‧‧‧Detecting devices for abnormal ventricular blood supply

(10)‧‧‧Sensor unit

(11) ‧‧‧Curve belt

(20)‧‧‧Signal Processor

(21)‧‧‧First microchip control unit

(22)‧‧‧Second microchip control unit

(23) ‧‧‧ Third microchip control unit

(30) ‧‧‧data output unit

(40)‧‧‧Display unit

(5) ‧ ‧ Dependents

First Figure: A block diagram of a preferred embodiment of the present invention.

Second Figure: A schematic diagram of a preferred embodiment of the present invention.

(10)‧‧‧Sensor unit

(20)‧‧‧Signal Processor

(21)‧‧‧First microchip control unit

(22)‧‧‧Second microchip control unit

(23) ‧‧‧ Third microchip control unit

(30) ‧‧‧data output unit

(40)‧‧‧Display unit

Claims (8)

A device for detecting ventricular blood supply abnormality includes: a sensing unit for measuring a time spectrum of a cardiovascular blood supply pulse signal of a test subject; a signal processor electrically connecting the sensing unit and having a first a microchip control unit, a second microchip control unit and a third microchip control unit, wherein the first microchip control unit analyzes and calculates the interval value of each corresponding peak of the cardiovascular blood supply pulse signal A value, the second microchip control unit and the third microchip control unit receive the analysis data of the first microchip control unit, and sequentially convert and calculate the analysis data; a data output unit, which is electrically The signal processor is connected to output the analysis data, and a display unit is electrically connected to the data output unit to display the analysis data, thereby determining whether the subject is abnormal in ventricular blood supply. The device for detecting abnormality of ventricular blood supply according to claim 1, wherein the sensing unit is a cuff with a sensor, wherein the cuff is measured by a brachial artery. Cardiovascular blood supply pulse signal. The device for detecting abnormality of ventricular blood supply according to item 2 of the patent application scope, wherein the sensing unit is a blood pressure monitoring device. The apparatus for detecting ventricular blood supply abnormality according to the first aspect of the patent application, wherein the sampling unit has a sampling rate of greater than or equal to 180 times/second. The apparatus for detecting ventricular blood supply abnormality according to claim 1, wherein the second microchip control unit is configured to (a) calculate a power spectral density of a time spectrum of the cardiovascular blood supply pulse signal. And, constructing (b) calculating the individual spectral power spectral densities of the cardiovascular blood supply pulse signals one by one. The apparatus for detecting ventricular blood supply abnormality according to claim 5, wherein the second microchip control unit obtains an energy density value of each of the cardiovascular blood supply pulse signals by using a discrete Fourier transform (Discrete Fourier Transform). A reciprocal value of a minimum frequency value is taken as a B value; the third microchip control unit takes a reciprocal value of each of the demultiplexed minimum frequency values as a C value, and a reciprocal value of the second small frequency value as a D Value and calculate the variance value as the E value. The device for detecting ventricular blood supply abnormality according to the first or sixth aspect of the patent application, wherein the A value exceeds 600-1200 ms, the B value is less than 100 ms, the C value exceeds 100-300 ms or the D A value greater than 200 ms indicates that the subject's ventricular blood supply is abnormal. According to the apparatus for detecting ventricular blood supply abnormality according to the first or sixth aspect of the patent application, wherein the E value is greater than 1/10 of the average value of the total value of the A value, the ventricular blood supply abnormality of the subject is discriminated.