TWI842506B - Wearable device for detecting patient's activity - Google Patents

Abstract

A wearable device for detecting patient's activity, comprising an inner ring, an outer ring, a light emitting module, a detection module, and a control module. The inner ring is suitable for cincturing on the patient. The outer ring surrounds the inner ring and is rotatably arranged on the inner ring relative to the inner ring. The light emitting module is disposed on one of the inner ring and the outer ring. The detection module is arranged on the other one of the inner ring and the outer ring, and can be opposed to the light emitting module in the radial direction, and is used for detecting the light emitted by the light emitting module and outputting a detection signal. The control module is signal-connected to the detection module to receive the detection signal. In this way, it is convenient to collect the user's activity data, and can maintain a longer measurement time, thereby obtaining more stable and continuous measurement data, which can improve the accuracy of a survival prediction model.

Description

Wearable device to detect patient activity

The present invention relates to a device for measuring a patient's condition, and more particularly to a wearable device for detecting a patient's activity status.

In clinical hospice care, accurate survival prediction can help doctors and patients communicate as early as possible, and provide patients and their families with psychological preparation for death in advance, and help avoid waste of medical resources.

Currently, wearable devices using gyroscopes have been applied to the study of survival prediction. The method is to use the gyroscope to collect the three-dimensional data of the patient's hand movement, such as gravitational acceleration, angle change, and spin change per second within 48 hours (continuous measurement of at least one biological clock (about 25 hours)), and convert it into three statistical parameters of physical activity, angle, and spin to establish a survival prediction model. However, since the gyroscope consumes a lot of power, the measurement must be interrupted at regular intervals during the measurement process to charge the gyroscope, resulting in discontinuity and different data lengths in the measurement data, which will lead to a decrease in the accuracy of the survival prediction model.

Therefore, the purpose of the present invention is to provide a wearable device for detecting the activity status of a patient which can improve the accuracy of a survival prediction model.

Therefore, the wearable device for detecting the activity status of a patient of the present invention comprises an inner ring, an outer ring, a light emitting module, a detection module, and a control module.

The inner ring is adapted to be placed on a patient.

The outer ring surrounds the inner ring and is rotatably disposed on the inner ring relative to the inner ring.

The light emitting module is disposed on one of the inner ring and the outer ring.

The detection module is arranged at the other of the inner ring and the outer ring, and can be radially opposite to the light-emitting module, so as to detect the light emitted by the light-emitting module and output a detection signal.

The control module signal is connected to the detection module to receive the detection signal.

The utility of the present invention is that by arranging the inner ring and the outer ring to be rotatable with each other, and arranging the light-emitting module and the detection module in one of the inner ring and the outer ring respectively, it is not only convenient to collect the user's activity data, but also, compared with the conventional gyroscope, the present invention has lower power consumption and can maintain a longer measurement time, thereby obtaining more stable and continuous measurement data, which can improve the accuracy of the survival prediction model.

Before the present invention is described in detail, it should be noted that similar components are represented by the same reference numerals in the following description.

1 , 2 and 3 , a first embodiment of the wearable device for detecting the activity status of a patient of the present invention comprises an inner ring 2, an outer ring 3, a light emitting module 4, a detection module 5, and a control module 6, and optionally also comprises a wireless module 7 connected to the control module 6 by a signal.

The inner ring 2 is ring-shaped and is suitable for being put on the patient's wrist.

The outer ring 3 is annularly encircled around the inner ring 2, coaxially with the inner ring 2, and can be rotatably disposed on the inner ring 2 with respect to the inner ring 2 and centered on the common axis. The outer ring 3 includes a ring body 31 and a plurality of limit claws 32, the limit claws 32 extending from the ring body 31 and cooperating with the ring body 31 to define a setting space 33 for the inner ring 2 to be rotatably disposed.

In the first embodiment, the outer ring 3 is described as including the ring body 31 and the limiting claws 32, but the inner ring 2 may also be designed to include the ring body 31 and the limiting claws 32, and the outer ring 3 may be rotatably disposed in the disposition space 33. That is, the embedding manner of the inner ring 2 and the outer ring 3 may be interchangeable, as long as the inner ring 2 and the outer ring 3 can be relatively rotated in the two directions of the X arrow in FIG. 1 .

Referring to FIG. 4 , the inner ring 2 and the outer ring 3 may also be rotatably engaged in the form of a cam and a slide groove. For example, the inner ring 2 may be configured to have a slightly I-shaped cross section and include a cam 21 disposed on the outer side in an annular shape. The outer ring 3 may include an annular slide groove 34 disposed on the inner side, and the cam 21 may be slidably embedded in the slide groove 34. Similarly, the cam 21 and the slide groove 34 may be disposed in interchangeable positions, but are not limited thereto.

Referring to FIG. 1 and FIG. 2 , the light emitting module 4 is disposed in one of the inner ring 2 and the outer ring 3. In the first embodiment, the light emitting module 4 is disposed in the inner side of the outer ring 3 for illustration, but it may also be disposed in the outer side of the inner ring 2. The light emitting module 4 is disposed in a ring shape and extends about 1/2 of a circle, and is used to emit light. For example, infrared light (wavelength between 750 nanometers (nm) and 1 millimeter (mm)) is emitted, or further disposed as near infrared light (wavelength between 750 nanometers (nm) and 1400 nanometers).

The detection module 5 is arranged on the other of the inner ring 2 and the outer ring 3. In the first embodiment, it is arranged on the outer side of the inner ring 2 for illustration, but it can also be arranged on the inner side of the outer ring 3. It only needs to be radially opposite to the light-emitting module 4 so that the detection module 5 can receive the light of the light-emitting module 4 during the process of rotating relative to the light-emitting module 4 (the inner ring 2 rotates relative to the outer ring 3). The detection module 5 is arranged along a ring shape and extends about 1/2 of a circle, and is used to detect the light emitted by the light-emitting module 4 to output a detection signal. The detection signal is related to whether the light emitted by the light-emitting module 4 is detected. The detection module 5 includes a plurality of detection elements 51 disposed in a ring shape. The detection elements 51 are, for example, infrared photodiodes.

The control module 6 includes a control circuit 61 and a battery pack 62. The control circuit 61 is signal-connected to the light-emitting module 4 and is used to control the light-emitting module 4 to emit light, and is signal-connected to the detection module 5 to receive the detection signal. The control circuit 61 records the detection signal and the corresponding time information and transmits it to an external processing device (e.g., a mobile phone, a computer, etc.) for subsequent analysis. The transmission method is, for example, that the control circuit 61 first stores the information, and then transmits the data via an interface such as USB, or Micro USB, or USB Type-C, or cooperates with the wireless module 7 to wirelessly output the detection signal and the corresponding time information to an external processing device. The control circuit 61 is implemented, for example, using an integrated circuit. The wireless module 7 is implemented using short-range wireless communication technologies such as Bluetooth and Wi-Fi.

The battery pack 62 is electrically connected to the light emitting module 4, the detection module 5, the control circuit 61 and the wireless module 7, and is used to provide power. The storage capacity of the battery pack 62 is preferably designed to provide the operating power of the above modules and circuits for at least 48 hours (greater than one physiological clock of the human body).

Referring to FIG. 1 , FIG. 2 and FIG. 5 , in actual application, since the wearable device is set on the patient's wrist, when the patient's hand moves, the inner ring 2 and the outer ring 3 will rotate relative to each other. In this way, the detection elements 51 of the detection module 5 will change between fully detecting light and only partially detecting light. In this way, the patient's activity state can be deduced based on the relationship between the number of the detection elements 51 that detect light (or do not detect light) and the change in time. For example, since the magnitude and frequency of the misalignment between the inner ring 2 and the outer ring 3 are proportional to the magnitude and frequency of the patient's activity, the magnitude and frequency of the misalignment between the inner ring 2 and the outer ring 3 can be derived from the above-mentioned relationship between the quantity and time, and the survival prediction model can be further evaluated based on this.

Through the above description, the effects of the first embodiment are as follows:

1. By setting the inner ring 2 and the outer ring 3 to be rotatable with each other, and setting the light-emitting module 4 and the detection module 5 on one of the inner ring 2 and the outer ring 3 and the other, not only is it convenient to collect the user's activity data, but also, compared with the conventional gyroscope, the first embodiment consumes less power. Since wearable devices cannot carry large-capacity batteries, the first embodiment can maintain a longer measurement time than the conventional gyroscope under the same power supply, and can solve the problem that the measurement time of the conventional technology cannot last for at least one biological clock, thereby obtaining more stable and continuous measurement data, so as to improve the accuracy of the survival prediction model.

Second, by setting the light emitted by the light emitting module 4 to near-infrared light and setting the detection elements 51 to infrared photodiodes, it is possible to prevent visible light in the ambient lighting from affecting the detection results of the detection module 5. In other words, using near-infrared light that is different from the visible light band can effectively remove the noise caused by the ambient light source, thereby obtaining more accurate measurement data.

Referring to FIG. 6 , a second embodiment of the wearable device for detecting the activity status of a patient of the present invention is shown. The second embodiment is similar to the first embodiment. The difference between the second embodiment and the first embodiment is that:

The light-emitting module 4 includes a plurality of light-emitting elements 41 arranged at intervals along a ring. The number of the light-emitting elements 41 is two, which are arranged at equal intervals along the ring and each extends approximately 1/4 of a circle.

The detection module 5 cooperates with the light emitting elements 41 to extend along a ring shape for about 1/4 of a circle.

Thus, the second embodiment can also achieve the same purpose and effect as the first embodiment.

Referring to FIG. 7 , a third embodiment of the wearable device for detecting the activity status of a patient according to the present invention is shown. The third embodiment is similar to the first embodiment, and the difference between the third embodiment and the first embodiment is that:

The light emitting module 4 is arranged in a ring shape and extends approximately 1/4 of a circle.

The detection members 51 are divided into a plurality of groups and arranged at intervals along a ring. In the third embodiment, the detection members 51 are divided into two groups and arranged at equal intervals along a ring, each extending about 1/4 of a circle.

Thus, the third embodiment can also achieve the same purpose and effect as the first embodiment.

In summary, the wearable device for detecting the activity status of a patient of the present invention can indeed achieve the purpose of the present invention.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

2: Inner ring 21: Convex rail 3: Outer ring 31: Ring body 32: Limit claw 33: Setting space 34: Slide groove 4: Light-emitting module 41: Light-emitting element 5: Detection module 51: Detection element- 6: Control module 61: Control circuit 62: Battery pack 7: Wireless module X: Arrow

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a longitudinal section diagram of a first embodiment of the wearable device for detecting the activity state of a patient of the present invention; FIG. 2 is a circuit block diagram of the first embodiment; FIG. 3 is a cross-sectional diagram of the first embodiment; FIG. 4 is another cross-sectional diagram of the first embodiment, illustrating another arrangement of an inner ring and an outer ring; FIG. 5 is another longitudinal section diagram of the first embodiment, illustrating the rotation of the inner ring relative to the outer ring; FIG. 6 is a longitudinal section diagram of a second embodiment of the wearable device for detecting the activity state of a patient of the present invention; and FIG. 7 is a longitudinal section diagram of a third embodiment of the wearable device for detecting the activity state of a patient of the present invention.

2: Inner ring

3: Outer Ring

31: Ring body

32: Limit claw

4: Light-emitting module

41: Luminous parts

5: Detection module

51: Detection device

X:arrow

Claims (7)

A wearable device for detecting the activity status of a patient comprises: an inner ring, suitable for being put on a patient; an outer ring, surrounding the inner ring and rotatably arranged on the inner ring relative to the inner ring; a light-emitting module, arranged on one of the inner ring and the outer ring; a detection module, arranged on the other of the inner ring and the outer ring, and radially opposite to the light-emitting module, for detecting The light emitting module emits light and outputs a detection signal; and a control module, which is connected to the detection module to receive the detection signal; wherein, one of the inner ring and the outer ring includes a ring body and a plurality of limit claws, and the limit claws extend from the ring body and cooperate with the ring body to define a setting space for the other of the inner ring and the outer ring to be rotatably set. A wearable device for detecting the activity status of a patient as described in claim 1, wherein the light emitted by the light-emitting module is near-infrared light. A wearable device for detecting the activity status of a patient as described in claim 2, wherein the detection module includes a plurality of infrared photodiodes. A wearable device for detecting the activity status of a patient as described in claim 1, wherein the light-emitting module includes a plurality of light-emitting elements arranged at intervals along a ring. A wearable device for detecting the activity status of a patient as described in claim 1, wherein the detection module includes a plurality of detection elements arranged along a ring, and the detection elements are divided into a plurality of groups and arranged at intervals along the ring. The wearable device for detecting the patient's activity status as described in claim 1 also includes a wireless module, the wireless module signal is connected to the control module to wirelessly output the detection signal. A wearable device for detecting the activity status of a patient comprises: an inner ring, suitable for being put on a patient; an outer ring, surrounding the inner ring and rotatably arranged on the inner ring relative to the inner ring; a light-emitting module, arranged on one of the inner ring and the outer ring; a detection module, arranged on the other of the inner ring and the outer ring, and radially opposite to the light-emitting module, for detecting the light emitted by the light-emitting module and outputting a detection signal; and a control module, signal-connected to the detection module to receive the detection signal; wherein, one of the inner ring and the outer ring comprises an annular slide groove, and the other comprises an annular convex track slidably embedded in the slide groove.

Images