Wearable device

Abstract

The utility model discloses a wearable device, and the device comprises a watchcase which is provided with a detection port; the laser light source is arranged in the meter shell, and the laser light source is used for emitting initial laser; the detection head is arranged in the watch shell and is arranged at the detection port, the laser light source is connected with the detection head so that the initial laser can be transmitted to the detection head, and the detection head is used for emitting the initial laser to the skin through the detection port so as to excite a Raman signal; the spectrum detector is arranged in the meter shell, the spectrum detector is connected with the detection head, the detection head is further used for collecting a Raman signal so as to transmit the Raman signal to the spectrum detector, and the spectrum detector is used for converting the Raman signal into an electric signal so as to obtain a Raman spectrum; the output module is arranged on the watch shell, and the output module is used for outputting the blood glucose information obtained through the Raman spectrum. According to the application, the Raman detection system can be conveniently used, and the application of the Raman detection system is not limited.

Description

Technical Field

[0001] The present application relates to the technical field of Raman testing systems, and in particular to a wearable device. Background Art

[0002] Diabetes is a metabolic disease characterized by high blood sugar levels, which can easily induce various tissue dysfunctions in the later stages and endanger human life. At present, there is no way to completely cure diabetes, so blood sugar monitoring has become an important part of diabetes management. Frequent monitoring of blood sugar concentrations to guide medication is an effective measure to prevent diabetic complications.

[0003] In the related art, the commonly used blood sugar detection method is based on the electrochemical method. Specifically, blood is obtained by pricking the fingertips, and the size of the chemical current generated by the enzyme-catalyzed redox reaction is detected to calculate blood sugar. This method requires the user to prick the finger several times a day for blood sugar measurement, and the test strips are consumables, which adds pain and economic burden to the patient.

[0004] Since non-invasive blood glucose detection technology does not require piercing the skin to draw blood, it solves the pain and economic burden of frequent blood draws on patients. Among non-invasive blood glucose detection technologies, Raman spectroscopy technology has become the preferred solution for non-invasive blood glucose detection due to its advantages such as high resolution, good reproducibility, simplicity and speed. However, in related technologies, since the entire Raman detection system using Raman spectroscopy technology is relatively large in size and cannot be moved according to the user's needs, the user needs to go to a specific location to measure blood glucose every time he uses it. This not only greatly limits the application of the Raman detection system, but is also extremely inconvenient for users to use. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the related art, the present application provides a wearable device to solve the problem that the Raman detection system in the related art is inconvenient to use.

[0006] In order to solve the above technical problems, in a first aspect, the present application provides a wearable device, which includes:

[0007] A watch case, wherein a detection port is provided on the watch case;

[0008] A laser light source, which is disposed in the watch case and is used to emit an initial laser;

[0009] A detection head, the detection head is arranged in the watch case and at the detection port, the laser light source is connected to the detection head through a laser transmission optical fiber, so that the initial laser is transmitted to the detection head through the laser transmission optical fiber, and the detection head is used to emit the initial laser through the detection port to the skin to stimulate a Raman signal;

[0010] A spectrum detector, the spectrum detector is arranged in the watch case, the spectrum detector is connected to the detection head through a signal transmission optical fiber, the detection head is also used to collect the Raman signal, so as to transmit the Raman signal to the spectrum detector through the signal transmission optical fiber, and the spectrum detector is used to convert the Raman signal into an electrical signal to obtain a Raman spectrum;

[0011] An output module is arranged on the watch case, and is used to output blood sugar information obtained through the Raman spectrum.

[0012] In a possible implementation manner of the first aspect, the laser light source includes a plurality of vertical cavity surface emitting lasers.

[0013] In a possible implementation of the first aspect, the laser transmission optical fiber includes a plurality of laser transmission sub-optical fibers, each of the laser transmission sub-optical fibers is connected to each vertical cavity surface emitting laser one by one, and each of the laser transmission sub-optical fibers is combined into a bundle.

[0014] In a possible implementation of the first aspect, the laser transmission optical fiber includes a laser transmission optical fiber segment arranged near the detection head, the signal transmission optical fiber includes a signal transmission optical fiber segment arranged near the detection head, the laser transmission optical fiber segment and the signal transmission optical fiber segment are combined into a bundle of combined optical fibers, and the combined optical fiber is connected to the detection head.

[0015] In a possible implementation manner of the first aspect, the signal transmission optical fiber segment includes a plurality of signal transmission sub-optical fiber segments, and each of the signal transmission sub-optical fiber segments is arranged outside the laser transmission optical fiber segment along the circumference of the laser transmission optical fiber segment.

[0016] In a possible implementation manner of the first aspect, a band-stop film is coated on the signal transmission optical fiber, so that the Raman signal enters the signal transmission optical fiber through the band-stop film.

[0017] In a possible implementation manner of the first aspect, a bandpass film is coated on the laser transmission optical fiber, so that the initial laser enters the detection head through the bandpass film.

[0018] In a possible implementation of the first aspect, the detection head is a confocal detection head, which is used to focus the initial laser to a set depth in the skin, and the confocal detection head is also used to focus the Raman signal on the end face of the signal transmission optical fiber arranged close to the detection head.

[0019] In a possible implementation manner of the first aspect, the set depth is 300-500 μm.

[0020] In a possible implementation manner of the first aspect, the spectral detector is a miniature spectrometer.

[0021] Compared with the related art, this application has at least the following beneficial effects:

[0022] In the present application, when a wearable device is used to detect blood sugar, first, the laser light source will emit an initial laser, and the initial laser can be transmitted to the detection head via a laser transmission optical fiber connecting the laser light source and the detection head. Subsequently, the detection head can emit the initial laser through the detection port to the inside of the skin at the detection port to stimulate a Raman signal. The Raman signal can enter the detection head after being reflected on the skin, so that the detection head can collect the Raman signal. Afterwards, the Raman signal entering the detection head will enter the spectrum detector via a signal transmission optical fiber connecting the detection head and the spectrum detector, and the spectrum detector will convert the Raman signal into an electrical signal, so that a Raman spectrum can be obtained. Finally, the output module can output the blood sugar information obtained by Raman spectroscopy.

[0023] Compared with the related art, the present application can not only detect blood sugar information through a wearable device, but also because the laser light source, the detection head and the spectral detector are all integrated inside the watch case, and because the watch case size is usually small, the wearable device in the present application is small in size, that is, the miniaturization of the wearable device can be achieved, so that the user can carry the wearable device at any time, and can use the wearable device to detect blood sugar information anytime and anywhere, which greatly facilitates the user's use and does not limit the application of the Raman detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a wearable device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the internal structure of a watch case provided in an embodiment of the present application;

[0027] Figure 3 A diagram showing the connection relationship between the laser light source, the detection head and the spectrum detector provided in the embodiment of the present application;

[0028] Figure 4 A schematic diagram of a laser light source provided in an embodiment of the present application;

[0029] Figure 5A schematic cross-sectional view of a combined optical fiber provided in an embodiment of the present application;

[0030] Figure 6 A diagram showing the working principle of the detection head provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1- case; 11- detection port;

[0033] 2-laser light source; 21-vertical cavity surface emitting laser;

[0034] 3-Detection head;

[0035] 4- Spectral detector;

[0036] 5- Output module;

[0037] 6-laser transmission optical fiber; 61-laser transmission sub-optical fiber; 62-laser transmission optical fiber segment;

[0038] 7- Skin;

[0039] 8-signal transmission optical fiber; 81-signal transmission optical fiber segment; 811-signal transmission sub-optical fiber segment;

[0040] 9-Bundle optical fiber. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0043] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0044] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0046] As described in the background technology of this application, diabetes is a metabolic disease characterized by high blood sugar, which can easily induce various tissue dysfunctions in the later stage and endanger human life safety. At present, since there is no method that can completely cure diabetes, blood sugar monitoring has become an important part of diabetes management. Frequent monitoring of blood sugar concentration to guide medication is an effective measure to prevent diabetic complications.

[0047] In the related art, the commonly used blood sugar detection method is based on the electrochemical method. Specifically, blood is obtained by pricking the fingertips, and the size of the chemical current generated by the enzyme-catalyzed redox reaction is detected to calculate blood sugar. This method requires the user to prick the finger several times a day for blood sugar measurement, and the test strips are consumables, which adds pain and economic burden to the patient.

[0048] Since non-invasive blood glucose detection technology does not require piercing the skin to draw blood, it solves the pain and economic burden of frequent blood draws on patients. Among non-invasive blood glucose detection technologies, Raman spectroscopy technology has become the preferred solution for non-invasive blood glucose detection due to its advantages such as high resolution, good reproducibility, simplicity and speed. However, in related technologies, since the entire Raman detection system using Raman spectroscopy technology is relatively large in size and cannot be moved according to the user's needs, the user needs to go to a specific location to measure blood glucose every time he uses it. This not only greatly limits the application of the Raman detection system, but is also extremely inconvenient for users to use.

[0049] In view of the above-mentioned problems, the present application provides a wearable device to solve the problem that the Raman detection system in the related art is inconvenient to use.

[0050] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings:

[0051] like Figure 1 and Figure 2 As shown, the wearable device includes a watch case 1, a laser light source 2, a detection head 3, a spectrum detector 4 and an output module 5. Figure 1 As shown, the watch case 1 is provided with a detection port 11. Figure 2 As shown, the laser light source 2 is disposed in the watch case 1, and the laser light source 2 is used to emit an initial laser. Figure 2 As shown, the detection head 3 is arranged in the watch case 1 and at the detection port 11. Figure 2 and Figure 3 As shown, the laser light source 2 is connected to the detection head 3 through the laser transmission optical fiber 6 so that the initial laser is transmitted to the detection head 3 through the laser transmission optical fiber 6, and the detection head 3 is used to emit the initial laser through the detection port 11 to the skin 7 to stimulate the Raman signal.

[0052] like Figure 2 As shown, the spectrum detector 4 is arranged in the watch case 1, and the spectrum detector 4 is connected to the detection head 3 through the signal transmission optical fiber 8. The detection head 3 is also used to collect Raman signals, so as to transmit the Raman signals to the spectrum detector 4 through the signal transmission optical fiber 8. The spectrum detector 4 is used to convert the Raman signals into electrical signals to obtain Raman spectra. The output module 5 is arranged in the watch case 1, and the output module 5 is used to output the blood sugar information obtained through the Raman spectrum.

[0053] In the present application, when a wearable device is used to detect blood sugar, first, the laser light source 2 will emit an initial laser, and the initial laser can be transmitted to the detection head 3 via the laser transmission optical fiber 6 connecting the laser light source 2 and the detection head 3. Subsequently, the detection head 3 can emit the initial laser through the detection port 11 to the inside of the skin 7 located at the detection port 11 to stimulate a Raman signal. The Raman signal can enter the detection head 3 after being reflected on the skin 7, so that the detection head 3 can collect the Raman signal. Afterwards, the Raman signal entering the detection head 3 will enter the spectrum detector 4 via the signal transmission optical fiber 8 connecting the detection head 3 and the spectrum detector 4, and the spectrum detector 4 will convert the Raman signal into an electrical signal, so that a Raman spectrum can be obtained. Finally, the output module 5 can output the blood sugar information obtained by Raman spectroscopy.

[0054] Compared with the related art, the present application can not only detect the blood sugar value through the wearable device, but also because the laser light source 2, the detection head 3 and the spectral detector 4 are all integrated inside the case 1, and because the case 1 is usually small in size, the wearable device in the present application is small in size, that is, the miniaturization of the wearable device can be achieved, so that the user can carry the wearable device at any time, and can use the wearable device to detect blood sugar information anytime and anywhere, which greatly facilitates the user's use and does not limit the application of the Raman detection system.

[0055] Regarding the detected skin 7, in the embodiment of the present application, the skin 7 may be the skin at the web of the index finger or the fishtail part of the palm. On the one hand, the individual differences of the skin at these two parts are relatively small, for example, the skin colors of these two parts of people with different skin colors are basically the same; on the other hand, the skin at these two parts has abundant capillaries and a thinner epidermis, which makes the measurement more convenient and accurate than that at other parts.

[0056] For blood sugar information, in the embodiment of the present application, the blood sugar information can be a specific blood sugar value, or blood sugar level, or of course a specific blood sugar value and blood sugar level. The output type of blood sugar information is relatively flexible, and can be determined according to actual usage requirements.

[0057] As for the output module 5, in a preferred embodiment, the output module 5 is a display screen. Displaying the blood sugar information on the display screen makes the output of the blood sugar information more intuitive, which is conducive to conveniently viewing the blood sugar information.

[0058] In other embodiments, the output module 5 may also be a speaker or a combination of a speaker and a display screen. The type of the output module 5 is relatively flexible, and can be determined according to actual use requirements, and will not be elaborated in detail in the embodiments of the present application.

[0059] For the wearable device, in a preferred embodiment, the wearable device further includes a processing system, and the processing system is used to calculate the corresponding blood sugar information according to the Raman spectrum, so that the output module 5 can output the blood sugar information calculated by the processing system.

[0060] With this arrangement, the laser light source 2, detection head 3, spectral detector 4 and processing system for obtaining blood sugar information are all integrated inside the watch case 1. In this way, in the process of obtaining blood sugar information, the user no longer needs to use other devices besides the wearable device, which further facilitates the user's use.

[0061] In other embodiments, the wearable device further includes a communication module, the communication module is used to send the Raman spectrum to a terminal device outside the wearable device, the terminal device is used to calculate the corresponding blood sugar information according to the Raman spectrum, and the communication module is also used to receive the blood sugar information calculated by the terminal device, so that the output module 5 is used to output the blood sugar information calculated by the terminal device. Such a setting can simplify the wearable device to a certain extent, facilitate the manufacture of the wearable device, and reduce the manufacturing cost of the wearable device to a certain extent.

[0062] Further, in a preferred embodiment, Figure 4 As shown, the laser light source 2 includes a plurality of vertical cavity surface emitting lasers (VCSEL) 21 .

[0063] The energy requirements and pulse width requirements of the laser light source 2 are both relatively high. The energy of the laser light source 2 is generally required to be about 100mW, and the pulse width is required to be less than 1nm. Since the energy of a single vertical cavity surface emitting laser 21 can reach about 10mW, the use of multiple vertical cavity surface emitting lasers 21 is conducive to meeting the higher energy requirements of the laser light source 2. Since the pulse width of the vertical cavity surface emitting laser 21 is very narrow, which can be less than 1nm, the use of vertical cavity surface emitting lasers 21 is also conducive to meeting the higher pulse width requirements of the laser light source 2.

[0064] Regarding the number of vertical cavity surface emitting lasers 21, in the embodiment of the present application, the vertical cavity surface emitting lasers 21 can be provided with ten, eleven or more. The specific number of the vertical cavity surface emitting lasers 21 is relatively flexible and can be specifically determined according to actual usage requirements. The embodiment of the present application will not be elaborated in detail.

[0065] In other embodiments, the laser light source 2 may also include a CAN (Metal Can Package, CAN for short) packaged laser. Since the CAN packaged laser has the characteristics of simple structure, compactness, easy processing and installation, the laser light source 2 is configured to include a CAN packaged laser, which can make the laser light source 2 simple, compact, easy processing and installation.

[0066] Further, in a preferred embodiment, Figure 4 As shown, the laser transmission optical fiber 6 includes a plurality of laser transmission sub-optical fibers 61, each of the laser transmission sub-optical fibers 61 is connected to each of the vertical cavity surface emitting lasers 21, and each of the laser transmission sub-optical fibers 61 is combined into a bundle.

[0067] In this way, the laser transmission optical fiber 6 is conveniently connected to each vertical cavity surface emitting laser 21 through multiple laser transmission sub-optical fibers 61. The laser transmission sub-optical fibers 61 are combined into a bundle, so that the energy of each vertical cavity surface emitting laser 21 can be superimposed together, which is conducive to increasing the initial laser energy of the final output.

[0068] In a preferred embodiment, Figure 2 and Figure 3 As shown, the laser transmission optical fiber 6 includes a laser transmission optical fiber segment 62 arranged near the detection head 3, and the signal transmission optical fiber 8 includes a signal transmission optical fiber segment 81 arranged near the detection head 3. The laser transmission optical fiber segment 62 and the signal transmission optical fiber segment 81 are combined into a bundle of combined optical fibers 9, and the combined optical fibers 9 are connected to the detection head 3.

[0069] Such a configuration optimizes the arrangement of the laser transmission fiber segment 62 and the signal transmission fiber segment 81 in the watch case 1, making the arrangement between the laser transmission fiber segment 62 and the signal transmission fiber segment 81 more compact. To a certain extent, it is helpful to reduce the space occupied by the laser transmission fiber segment 62 and the signal transmission fiber segment 81 in the watch case 1, thereby facilitating the arrangement of the laser transmission fiber segment 62 and the signal transmission fiber segment 81 in the watch case 1.

[0070] In other embodiments, the laser transmission fiber segment 62 and the signal transmission fiber segment 81 are spaced apart from each other. This arrangement simplifies the arrangement relationship between the laser transmission fiber segment 62 and the signal transmission fiber segment 81, thereby facilitating the arrangement between the laser transmission fiber 6 and the signal transmission fiber 8.

[0071] Further, in a preferred embodiment, Figure 5 As shown, the signal transmission optical fiber segment 81 includes a plurality of signal transmission sub-optical fiber segments 811 , and each signal transmission sub-optical fiber segment 811 is arranged outside the laser transmission optical fiber segment 62 along the circumferential direction of the laser transmission optical fiber segment 62 .

[0072] Such an arrangement optimizes the arrangement between the laser transmission fiber segment 62 and the signal transmission fiber segment 81, so that the laser transmission sub-fibers 61 at the laser transmission fiber segment 62 can still be concentrated together, and then on the basis of combining the laser transmission fiber segment 62 and the signal transmission fiber segment 81 into a combined fiber 9, the final output energy of the initial laser can still be guaranteed, and at the same time, the distribution range of the signal transmission sub-fiber segment 811 can be expanded, which is conducive to facilitating the Raman signal to enter the signal transmission sub-fiber segment 811.

[0073] In other embodiments, each signal transmission sub-fiber segment 811 is combined into a bundle of signal transmission fiber segments 81, and the laser transmission fiber segment 62 is also a bundle of optical fibers, and the signal transmission fiber segment 81 and the laser transmission fiber segment 62 are intertwined. Such an arrangement simplifies the arrangement between each signal transmission sub-fiber segment 811 and the laser transmission fiber segment 62, which is conducive to the processing of the combined optical fiber 9.

[0074] In a preferred embodiment, the signal transmission optical fiber 8 is coated with a band-stop film, so that the Raman signal can enter the signal transmission optical fiber 8 through the band-stop film.

[0075] In fact, the Raman signal energy is very weak, only 10% of the initial laser energy as the incident light. -7Therefore, if the initial laser light as the light source enters the signal transmission optical fiber 8, the useful Raman signal in the signal transmission optical fiber 8 will be completely submerged. Since the band-stop width of the band-stop film is larger than the band-stop width of the laser light source 2, the band-stop film is plated on the signal transmission optical fiber 8, which can not only ensure that the Raman signal can smoothly enter the signal transmission optical fiber 8, but also block the initial laser light as the light source from entering the signal transmission optical fiber 8.

[0076] In a preferred embodiment, the laser transmission optical fiber 6 is coated with a bandpass film, so that the initial laser can enter the detection head 3 through the bandpass film.

[0077] Since the wavelength of the Raman signal excited by the laser is strongly related to the wavelength of the light source, that is, the larger the wavelength of the light source, the larger the wavelength of the excited Raman signal. When the wavelength range of the Raman signal is very large, the obtained Raman spectrum will overlap with the Raman spectrum of other substances, and the Raman spectrum of the substance we need cannot be obtained. Since the band-stop width of the band-pass film is very narrow, generally less than 0.5nm, the band-pass film is plated on the laser transmission optical fiber 6 to block light of other wavelengths and prevent the wavelength range of the excited Raman signal from being very wide.

[0078] For the detection head 3, further, in a preferred embodiment, the detection head 3 is a confocal detection head, such as Figure 6 As shown, the confocal probe is used to focus the initial laser to a set depth h in the skin 7 , and the confocal probe is also used to focus the Raman signal on the end face of the signal transmission optical fiber 8 arranged close to the probe 3 .

[0079] The detection head 3 as an optical lens is set as a confocal detection head, so that the detection head 3 can collect Raman signals at a specific depth based on the basic principle of confocal, for example Figure 6 As shown, the front focal length of the detection head 3 is d1, and the back focal length is d2. Only the Raman signal at d1 can be focused by the detection head 3 to the end face of the signal transmission optical fiber 8 at d2, and then coupled into the signal transmission optical fiber 8. As for the Raman signals at other positions, only very few Raman signals can be coupled into the signal transmission optical fiber 8. Therefore, the Raman signal at d1 is mainly collected, which can improve the signal-to-noise ratio of the entire wearable device.

[0080] Furthermore, in a preferred embodiment, the depth h is set to 300-500 μm.

[0081] Such a setting can improve the practicality of the entire wearable device and facilitate the use of the entire wearable device.

[0082] In the embodiment of the present application, the depth h can be set to 300 μm, 500 μm, 400 μm or any value within the range of 300-500 μm. The specific numerical value of the depth h can be selected flexibly and can be determined according to actual specific needs.

[0083] As for the spectral detector 4, in a preferred embodiment, the spectral detector 4 is a miniature spectrometer.

[0084] Since the micro-spectrometer is directly prepared using existing semiconductor processes and the detection accuracy of the micro-spectrometer can be very high, the use of the micro-spectrometer is not only conducive to the miniaturization of wearable devices, but also conducive to improving the detection accuracy of wearable devices. In addition, since the pulse width of the micro-spectrometer is less than 0.1nm, it can also meet higher pulse width requirements.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wearable device, characterized in that: include: A watch case, wherein a detection port is provided on the watch case; A laser light source, which is disposed in the watch case and is used to emit an initial laser; A detection head, the detection head is arranged in the watch case and at the detection port, the laser light source is connected to the detection head through a laser transmission optical fiber, so that the initial laser is transmitted to the detection head through the laser transmission optical fiber, and the detection head is used to emit the initial laser through the detection port to the skin to stimulate a Raman signal; A spectrum detector, the spectrum detector is arranged in the watch case, the spectrum detector is connected to the detection head through a signal transmission optical fiber, the detection head is also used to collect the Raman signal, so as to transmit the Raman signal to the spectrum detector through the signal transmission optical fiber, and the spectrum detector is used to convert the Raman signal into an electrical signal to obtain a Raman spectrum; An output module is arranged on the watch case, and is used to output blood sugar information obtained through the Raman spectrum.

2. The wearable device according to claim 1, characterized in that: The laser light source includes a plurality of vertical cavity surface emitting lasers.

3. The wearable device according to claim 2, characterized in that: The laser transmission optical fiber includes a plurality of laser transmission sub-optical fibers, each of which is connected to each vertical cavity surface emitting laser one by one, and each of which is combined into a bundle.

4. The wearable device according to any one of claims 1 to 3, characterized in that: The laser transmission optical fiber includes a laser transmission optical fiber segment arranged near the detection head, and the signal transmission optical fiber includes a signal transmission optical fiber segment arranged near the detection head. The laser transmission optical fiber segment and the signal transmission optical fiber segment are combined into a bundle of combined optical fibers, and the combined optical fiber is connected to the detection head.

5. The wearable device according to claim 4, characterized in that: The signal transmission optical fiber segment includes a plurality of signal transmission sub-optical fiber segments, and each of the signal transmission sub-optical fiber segments is arranged outside the laser transmission optical fiber segment along the circumference of the laser transmission optical fiber segment.

6. The wearable device according to any one of claims 1 to 3, characterized in that: The signal transmission optical fiber is coated with a band-stop film, so that the Raman signal can enter the signal transmission optical fiber through the band-stop film.

7. The wearable device according to any one of claims 1 to 3, characterized in that: The laser transmission optical fiber is coated with a bandpass film, so that the initial laser can enter the detection head through the bandpass film.

8. The wearable device according to any one of claims 1 to 3, characterized in that: The detection head is a confocal detection head, which is used to focus the initial laser to a set depth in the skin. The confocal detection head is also used to focus the Raman signal on the end face of the signal transmission optical fiber arranged close to the detection head.

9. The wearable device according to claim 8, characterized in that: The set depth is 300-500 μm.

10. The wearable device according to any one of claims 1 to 3, characterized in that: The spectrum detector is a miniature spectrometer.

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