TWI473043B - Device and method for biological monitoring - Google Patents

Description

Biological sensing device and monitoring method thereof

The present invention relates to a biosensing system, and more particularly to providing a biosensing device incorporating a distal care function and a monitoring method thereof.

Because of the relationship between life and diet, modern people are prone to so-called civilized diseases or so-called chronic diseases. For example, the proportion of the population with high blood sugar, high blood pressure or high cholesterol has increased year by year, so more and more people Will take the initiative to buy a blood detector such as a small portable blood glucose machine to keep an eye on its own situation.

In addition, the advancement of medical technology has created a society for the elderly, and more and more medical care-related products have been launched. The instant community remote care system is an example. By providing a sensor for the elderly, it can be worn when a fall accident occurs. At the same time, the sensor can transmit an emergency rescue signal to the person through the wireless transmission to assist the person.

However, the sensor is used to sense whether a user has a fall accident, and most of the acceleration changes caused by the human body. The basis of the judgment is mostly set in advance by a program, and even if some can be designed according to the user, Most of them are based on the user's external conditions (such as height, weight or age) and cannot be dynamically set according to the user's health.

Therefore, is there a mechanism or device that can integrate the remote medical care/monitoring system into the small portable blood detector, so that the user can adjust the setting of the care monitoring dynamically according to his own condition, in addition to being able to pay attention to his or her own situation at any time. To effectively and accurately monitor and care for users.

The invention discloses a biological sensing system, which realizes the function of remote care and monitoring through data transmission and processing.

According to one aspect of the present invention, a biosensing device and a monitoring method thereof, obtain at least one biological data and at least one state data from a subject, and dynamically adjust an effective range value of the alert monitoring according to the biological data of the subject To effectively and accurately monitor and care the subject.

According to an embodiment of the invention, the bio-sensing device is portable to a subject, and includes a bio-detection module, a motion sensing module, a warning module, a transmission module and a controller. The biometric detection module acquires at least one biometric data by detecting the subject. The motion sensing module transmits at least one acceleration change value and an angle change value of the subject to obtain at least one state data of the subject. The warning module is configured to send a sensible signal to remind the subject. The transmission module is configured to transmit at least the biological data and the status data to a near-end or a remote terminal device. The controller is electrically connected to the biological detection module, the motion sensing module, the warning module and the transmission module, and calculates the biological data and the status data through a preset rule, and sends the data according to the calculation result. A control signal to drive the warning module or the transmission module.

According to another embodiment of the present invention, the monitoring method includes the steps of: calculating a center of gravity of a subject, setting a standing reference value; obtaining at least one biological data and at least one status data from the subject, wherein The state data includes at least one acceleration change value and at least one angle change value; calculating at least one dangerous threshold value and a fall occurrence threshold value according to the biological data; and when the angle change value is greater than the dangerous threshold value, alerting the measured When the acceleration change value is greater than the fall occurrence threshold, the subject is set to a fall state; waiting for a preset time, obtaining a new state data according to the standing reference value to determine the subject's Whether the posture is restored; when the posture of the subject is not restored, a remote medical care system is notified and a warning signal is sent to the surrounding neighbors.

Therefore, the present invention can dynamically adjust the effective range value of the warning monitoring through the above-mentioned device and method, in addition to the physiological and state sensing of the subject in real time without time difference, and corresponding to the obtained physiological data. Adjust the scope of alert monitoring to improve the accuracy and effectiveness of care or emergency distress notifications.

Hereinafter, the biosensing device of the present invention and a monitoring method thereof will be disclosed by way of embodiments.

Please refer to FIG. 1, which is a schematic view of the biosensing device of the present invention. In one embodiment, the bio-sensing device 1 is portable and can be worn on a subject, and includes a bio-detection module 10, a motion sensing module 12, a warning module 14, and a transmission module. Group 16 is coupled to a controller 18.

In the embodiment, the biological detection module 10 is a blood detection module (for example, a blood glucose concentration detector, a blood coagulation index detector, or a combination thereof). The biometric detection module 10 detects at least one biological data in the blood of the subject by detecting blood of the subject.

The motion sensing module 12 is a set of three-axis acceleration sensors that transmit at least one acceleration change value and an angle change value of the subject to obtain at least one state data of the subject. However, the three-axis acceleration sensor of the motion sensing module 12 is a conventional technique, and its detailed structure or operation mode will not be described herein. The motion sensing module 12 can be expanded to be a sensing module with a step counting function.

The warning module 14 is configured to send a sensible signal to remind the subject, wherein the sensible signal can be a vibration signal, a blinking signal or an audio source signal. The warning module 14 is different according to the type of the sensible signal. For example, when the sensible signal is a vibration signal, the warning module 14 is a motor; when the sensible signal is a flashing signal, the warning mode is The group 14 is a light emitting diode device; when the sensible signal is a sound source signal, the warning module 14 is a bee device.

The transmission module 16 is configured to transmit at least the biological data and the status data to a near-end or a remote terminal device. For example, the transmission module 16 can be a wireless transmission module conforming to the IEEE 802.x specification, and transmitted to a monitoring unit of a medical unit through a network environment in the form of data packets.

The controller 18 is electrically connected to the biological detection module 10, the motion sensing module 12, the warning module 14 and the transmission module 16, and calculates the biological data and the status data through a preset rule. And sending a control signal according to the calculation result to drive the warning module 14 or the transmission module 16.

In general, when the motion sensing module 12 senses that the angle change value of the subject exceeds a certain threshold value, it indicates that the subject's current body stability is poor, and there is a hidden fall. Danger, where the tilt angle threshold for determining stability is defined herein as a "hazard threshold", which is based on the body tilt direction of the subject (before and after the formation of the triaxial acceleration sensor) , left and right planes, and respectively include the forward leaning danger threshold, the backward leaning danger threshold, the left leaning danger threshold and the right leaning danger threshold. For example, when an adult has a forward tilt angle greater than 8.5 degrees, a backward tilt angle greater than 4.25, or both left and right tilt angles greater than 8 degrees, the controller 18 drives the alert module 14 to alert the subject to their body. Posture to avoid falling.

According to the experiment and statistical data of the inventors of the present invention, the tolerable ranges for the angle change of the general adult are: forward tilt 5.5 to 8.25 degrees, backward tilt 2.8 to 4.25 degrees, and left and right inclination 3 to 8 degrees. The controller 18 adjusts the dangerous threshold value adapted to the physiological condition of the subject based on the biological data of the biological detection module 10.

For example, in patients with atrial fibrillation or venous thrombosis, when the international standardized normalized ratio (INR) is less than 2, there may be a risk of stroke. When the INR is greater than 3.9, there may be The risk of cerebral bleeding. Therefore, when the controller 18 obtains the blood data (for example, blood concentration) of the subject from the biological detection module 10, the controller 16 adjusts the tolerance range of the angle change value.

Briefly, if the original subject is tilted more than 8.5 degrees, the controller 18 will send a control signal to drive the warning module 14, but when the blood concentration of the subject is less than 2, the forward tilt angle is When it is reduced to 5.5 degrees, the warning module 14 is notified to warn the subject.

Moreover, when a fall occurs, the motion sensing module 12 can sense an acceleration change value of one of the subjects (hereinafter referred to as a G value (unit: g), and the G value is a Gravitational acceleration value) When the value of G is greater than a certain threshold, that is, the subject is in a falling state, the controller 18 may further evaluate the severity of the subject after the fall based on the G value. The G value threshold used to determine the fall is defined herein as the "fall threshold". Similarly, according to the experiments and statistical data of the inventors of the present invention, the threshold value for the fall of a general adult is 1.8 to 3.6 g. The controller 18 adjusts the fall occurrence threshold adapted to the physiological condition of the subject according to the biological data of the biological detection module 10.

For example, in general, a healthy adult's fall threshold may be 3.5 g for atrial fibrillation or venous thrombosis, and the fall threshold is 1.8 g.

Further, the controller 18 can also determine the severity of the subject after the fall according to the magnitude of the fall threshold. For example, when the fall threshold is between 1.8g and 3.5g, it can be regarded as a general autologous fall. More than 3.5g~10g may be an accident such as an external force collision or a high drop.

It is worth noting that the controller 18 further adjusts the threshold of the dangerous threshold and the fall threshold and the severity of the fall according to the age, height and weight of the subject, for example, the controller 18 For a young person who is subject to a 2g drop acceleration, it may be judged as an unimpeded fall state, but for an elderly person over 80 years old, a drop of 1.8g may cause the subject to be fatal. Dangerous injury.

In addition, the above-mentioned determination criterion is written in a firmware manner in a memory unit (not shown) of the controller 18. The controller 18 is a programmable controller, and the memory unit is a memory unit. Read-Only Memory (ROM).

Therefore, compared with the conventional general biosensor and motion sensor, the controller 18 of the present invention can dynamically adjust the threshold of the threshold and the threshold of the fall to accurately evaluate and monitor the biological data and the state data. The status of the subject.

Please refer to FIG. 2, which is a schematic view of another embodiment of the biosensing device of the present invention. The bio-sensing device of this embodiment is similar to the above embodiment, and the main difference is that the transmission module 16 is a USB transmitter 20 (also referred to as USB Dongle) having a wireless transmission function, and the USB transmitter 20 has a storage. A unit (eg, flash memory) 202 and a wireless transmission module 204. The controller 18 accesses the biometric data and the status data in the storage unit 202 via a USB interface 206.

The USB transmitter 20 has the advantages of large access space and detachability. For example, when the subject goes to the hospital, the USB transmitter 20 can be removed from the bio-sensing device and transmitted through a USB device of the terminal device 22. The interface is directly connected to the terminal device 22 (for example, on a computer host of a hospital), eliminating the need to access historical sensing data or to save a large amount of power required for wireless transmission.

The wireless transmission module 204 can be an IEEE 802.x compliant wireless transmission module, a Bluetooth transmission module, a Zigbee transmission module, a near-end sensing transmission module, or a 3G network. Transmission module.

Please refer to FIG. 3, which is a flow chart of the biological monitoring method of the present invention. The biological monitoring method includes the following steps:

S300 calculates the center of gravity of a subject and sets it as a standing reference value;

S302: obtaining at least one biometric data and at least one state data from the subject, wherein the state data includes at least one acceleration change value and at least one angle change value;

S304 calculates, according to the biometric data, at least one dangerous threshold value and a fall occurrence threshold value;

S306, when the angle change value is greater than the dangerous threshold value, alerting the subject;

S308, when the acceleration change value is greater than the fall occurrence threshold, setting the subject to a fall state;

S310 waits for a preset time, and obtains a new state data according to the standing reference value to determine whether the posture of the subject is restored;

S312 When the subject's posture is not restored, a remote medical care system is notified and a warning signal is sent to the neighboring neighbors.

The center of gravity of the subject described in step S300 is set as a standing reference value, and the center of gravity of the subject refers to the center of gravity of the subject in the normal standing state, and the body is balanced, and is used as the subject. Reference basis when standing.

Wherein, the biological data can be a blood glucose concentration or an international normalized prothrombin time ratio.

Among them, the threshold value of the danger includes 5.5~8.25 degrees forward tilting, 2.8~4.25 degrees backward tilting and 3~8 degrees tilting left and right; the threshold value of the fall can be 1.8~3.6g.

The remote medical care system disclosed in step S312 is transmitted through a wireless transmission mechanism, which utilizes a wireless transmission module of the IEEE 802.x specification, a Bluetooth transmission module, and a Zigbee (Zigbee). A transmission module, a near-end inductive transmission module or a 3G network transmission module.

Therefore, the present invention can dynamically adjust the effective range value of the warning monitoring through the above-mentioned device and method, in addition to the physiological and state sensing of the subject in real time without time difference, and corresponding to the obtained physiological data. Adjust the scope of alert monitoring to improve the accuracy and effectiveness of care or emergency distress notifications.

However, the above-mentioned preferred embodiments of the present invention are not intended to limit the scope of the invention, and any changes and modifications apparent to those skilled in the art should be considered as not The substance of the invention is removed.

1. . . Biosensing device

10. . . Biological detection module

12. . . Motion sensing module

14. . . Warning module

16. . . Transmission module

18. . . Controller

20. . . USB transmitter

twenty two. . . Terminal device

202. . . Storage unit

204. . . Wireless transmission module

206. . . USB transfer interface

Figure 1 is a schematic illustration of a biosensing device of the present invention.

2 is a schematic view of another embodiment of the biosensing device of the present invention.

Figure 3 is a flow chart of the biological monitoring method of the present invention.

1. . . Biosensing device

10. . . Biological detection module

12. . . Motion sensing module

14. . . Warning module

16. . . Transmission module

18. . . Controller

Claims (18)

A biological sensing device is worn on a subject, comprising: a biological detecting module, which acquires at least one biological data from the blood of the subject; and a motion sensing module senses the At least one gravity acceleration change value and an angle change value of the subject to obtain at least one state data of the subject; a warning module sends a sensible signal to remind the subject; a transmission mode The group is configured to transmit at least one of the biometric data and the at least one status data to a near end or a remote terminal device; and a controller electrically connected to the biometric detection module and the motion sensing module The warning module and the transmission module calculate the biological data and the status data through a preset rule, and send a control signal according to a calculation result to correspondingly drive the warning module or the transmission module. The bio-sensing device of claim 1, wherein the preset rule comprises a dangerous threshold value and a fall occurrence threshold value. The bio-sensing device of claim 2, wherein the calculation result is a comparison result of comparing the magnitude of the state data with the hazard threshold or the fall threshold. The biological sensing device of claim 2, wherein the dangerous threshold value comprises: a forward leaning danger threshold value, a backward leaning danger threshold value, and a left leaning danger threshold according to the subject's body tilt direction. The value and the right threshold are dangerous. A biosensing device according to claim 4, wherein The threshold value of the forward leaning danger is between 5.5 and 8.25 degrees, and the threshold value of the backward tilting threshold is between 2.8 and 4.25 degrees. The left threshold of the threshold is between 3 and 8 degrees. The bio-sensing device of claim 2, wherein the fall threshold is 1.8 to 3.6 gravitational acceleration. The biological sensing device of claim 1, wherein the biological detecting module is a blood detecting module, and the biological data is a blood glucose concentration. The biological sensing device of claim 1, wherein the biological detecting module is a blood detecting module, and the biological data is an international standardized prothrombin time ratio. The bio-sensing device of claim 1, wherein the motion sensing module is a three-axis accelerometer. The bio-sensing device of claim 1, wherein the transmission module is a USB transmitter having a transmission function. The bio-sensing device of claim 10, wherein the USB transmitter has a storage unit and a wireless transmission module, and the controller stores the biological data and the status data in the storage through a USB transmission interface. Access within the unit. A biological monitoring method includes: obtaining at least one biological data and at least one state data from a blood of a subject, wherein the state data includes at least one gravity acceleration change value and at least one angle change value; Calculating at least one dangerous threshold value and a fall occurrence threshold according to the biological data correspondence; when the angle change value is greater than the dangerous threshold value, alerting the subject; when the gravity acceleration change value is greater than the fall occurrence threshold value Setting the subject to a fall state; waiting for a preset time, obtaining a new state data according to a standing reference value to determine whether the subject's posture is restored; and when the subject's posture is not restored , to notify a remote medical care system and send a warning signal to neighboring neighbors. The biological monitoring method of claim 12, before the obtaining the biological data and the status data from the subject, further comprising: calculating a center of gravity of the subject, and setting the standing reference value. The biological monitoring method according to claim 12, wherein the biological data is a blood glucose concentration. The biological monitoring method according to claim 12, wherein the biological data is an international standardized prothrombin time ratio. The biological monitoring method according to claim 12, wherein the dangerous threshold value according to the body tilting direction of the subject includes: a forward leaning danger threshold value, a backward leaning danger threshold value, and a left leaning dangerous threshold value. With a right leaning danger threshold. The biological monitoring method according to claim 16, wherein the forward tilting threshold is between 5.5 and 8.25 degrees, and the backward tilting threshold is between 2.8 and 4.25 degrees, and the left leaning threshold is The right threshold is between 3 and 8 degrees. The biological monitoring method according to claim 12, wherein the fall threshold value is 1.8 to 3.6 gravitational acceleration.