Ring for detecting physiological information of a user

By designing a ring-shaped area and a recessed area inside the ring to fix the finger, and combining penetrating and reflective detection modules, the problem of inaccurate detection caused by the displacement of traditional rings is solved, achieving stable and accurate blood oxygen detection.

CN115469738BActive Publication Date: 2025-12-19PIXART IMAGING INC
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Patent Information

Application Number
CN202210481440.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-06-11
Filing Date
2022-05-05
Publication Date
2025-12-19
Estimated Expiration
2042-05-05

AI Technical Summary

Technical Problem

Traditional smart rings tend to shift off the finger, causing the optical sensor to fail to accurately align with blood vessels, thus affecting blood oxygenation test results.

Method used

Design a ring with an internal space including a ring-shaped area and a recessed area. The recessed area fixes the fingertip, ensuring that the detection module is accurately aligned with the finger's blood vessels. It uses penetrating and reflective detection modules to perform blood oxygen detection alternately or simultaneously, and uses light signals of different wavelength ranges to be emitted and received alternately.

Benefits of technology

It achieves stable positioning of the ring on the finger, ensuring the accuracy and precision of blood oxygen detection and providing optimal blood oxygen saturation detection results.

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Abstract

The application discloses a ring for detecting physiological information of a user, comprising a shell and a detection assembly. The shell has an internal space for accommodating a user's finger. The internal space comprises a ring-shaped area and a concave area. The concave area has a first side, a lower abdomen and a second side connected in sequence. The first side and the second side are respectively connected to both sides of the ring-shaped area. The ring-shaped area covers the back of the user's finger. The lower abdomen of the concave area contacts the palm of the user's finger, and the first side and the second side of the concave area respectively contact the sides of the user's finger. The detection assembly is arranged in the shell. The detection assembly comprises a first detection module and a second detection module, which are respectively arranged on the first side and the second side. The user's finger cannot be rotated and offset relative to the ring, ensuring that the detection assembly of the ring can be accurately aligned with the lateral artery of the user's finger, thereby obtaining an optimal blood oxygen saturation.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a ring, in particular, to a ring capable of accurately detecting physiological information of a user. BACKGROUND

[0002] Conventional physiological information sensing devices are mainly installed on the surface of a mobile phone or a watch. However, some application environments may not allow a user to carry a mobile phone or wear a watch, such as when the user is sleeping. In addition to mobile phones and watches, existing wearable electronic products provide a smart ring. The smart ring is internally provided with an optical sensor and a light source for blood oxygen level detection. The light source alternately emits red light and infrared light to the user's finger, and the light penetrates the skin and is reflected and absorbed by the blood in the blood vessels. Since the absorption amount of red light and infrared light by oxyhemoglobin is different, the optical sensor can determine the absorption amount ratio of red light and infrared light generated by oxyhemoglobin according to the received light intensity of red light and infrared light to obtain the blood oxygen level. However, the ring is often easily shifted on the finger, and the optical sensor is not aligned with the blood vessels, which will significantly affect the detection results of the smart ring. Therefore, how to provide a mechanism design that can comfortably position the smart ring on the user's finger is the key development goal of the related optical wearable industry. SUMMARY

[0003] The present invention relates to a ring capable of accurately detecting physiological information of a user.

[0004] The present invention further discloses a ring for detecting physiological information of a user. The ring includes a shell and a detection assembly. The shell has an internal space for accommodating a user's finger. The internal space includes a ring-shaped area and a concave area. The concave area has a first side, a lower abdomen, and a second side connected in sequence. The first side and the second side are respectively connected to both sides of the ring-shaped area. The ring-shaped area covers the back of the user's finger. The lower abdomen of the concave area contacts the palm of the user's finger, and the first side and the second side of the concave area respectively contact the sides of the user's finger. The detection assembly is arranged in the shell. The detection assembly includes a first detection module and a second detection module, which are respectively arranged at the first side and the second side.

[0005] The present invention further discloses that the first detection module has a first light source, the second detection module has a second light source and a light receiver, the light receiver receives a first penetrating light signal output by the first light source and penetrating the palm, and receives a second reflected light signal output by the second light source and reflected by the palm.

[0006] The first detection module has a first light receiver, and the second detection module has a second light receiver and a light source. The first light receiver receives a penetrating light signal output by the light source and passing through the finger pulp. The second light receiver receives a reflected light signal output by the light source and reflected by the finger pulp.

[0007] The first detection module has a first light receiver and a first light source, and the second detection module has a second light receiver and a second light source. The first light receiver receives a first reflected light signal output by the first light source and reflected by the finger pulp. The second light receiver receives a second reflected light signal output by the second light source and reflected by the finger pulp.

[0008] The first detection module has a first light receiver and a first light source, and the second detection module has a second light receiver and a second light source. The first light receiver receives a second penetrating light signal output by the second light source and passing through the finger pulp. The second light receiver receives a first penetrating light signal output by the first light source and passing through the finger pulp.

[0009] The first detection module has a first light receiver and a first light source, and the second detection module has a second light receiver and a second light source. The first light receiver receives a second penetrating light signal output by the second light source and passing through the finger pulp. The second light receiver receives a first penetrating light signal output by the first light source and passing through the finger pulp.

[0010] The first detection module has a first light source, and the second detection module has a second light source. The activation time of the first light source does not overlap with the activation time of the second light source.

[0011] The shell further includes a configuration space between the internal space and the outer surface of the shell. The ring further includes a power storage module, a charging module, and an information transmission module arranged in the configuration space.

[0012] The shell further has a first light-transmitting sheet and a second light-transmitting sheet arranged at the first side and the second side of the recessed area, respectively, covering the first detection module and the second detection module.

[0013] The ring further includes an induction module electrically connected to the detection combination and arranged on the inner surface of the internal space. The induction module is used to sense signal changes to determine whether the user's finger is in contact, and accordingly activate or shut down the detection combination.

[0014] The physiological information is blood oxygen saturation, and the first detection module and the second detection module each output multiple light signals of different wavelength ranges.

[0015] The first detection module alternately outputs the light signals of different wavelength ranges, and the second detection module alternately outputs the light signals of different wavelength ranges.

[0016] The present application also discloses that the maximum width of the annular region is greater than the maximum width of the recessed region.

[0017] The present application also discloses that the first detection module and the second detection module each belong to one of a transmissive detection module and a reflective detection module.

[0018] The present application also discloses that the first detection module has a first light source, the second detection module has a second light source, and the wavelength ranges of the first light source and the second light source at least partially do not overlap.

[0019] The present application also discloses that the first detection module has a first light source, and the first light source can switch to emit light signals of different wavelength ranges.

[0020] The present application also discloses that the second detection module has a second light source, and the second light source can switch to emit light signals of different wavelength ranges.

[0021] The ring of the present application designs the internal space as an annular region and a recessed region. The annular region and the recessed region wrap and hold the user's finger, and the recessed region can fix the user's finger pad, so that the user's finger does not rotate and deviate relative to the ring, ensuring that the detection combination of the ring can be accurately aligned with the lateral artery of the user's finger, thereby obtaining the preferred blood oxygen saturation. The two detection modules of the detection combination can be a transmissive detection module and a reflective detection module, or both transmissive detection modules, or both reflective detection modules. The detection result of the detection combination can be displayed through the screen of the ring, or transmitted to an external electronic device for further analysis and display. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the blood vessel distribution of the user's finger for the embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the user's finger wearing the ring for the embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the appearance of the ring for the embodiment of the present application.

[0025] Figure 4 It is a structural side view of the ring for the embodiment of the present application.

[0026] Figure 5 It is a functional block diagram of the detection combination for the first embodiment of the present application.

[0027] Figure 6 It is a functional block diagram of the detection combination for the second embodiment of the present application.

[0028] Figure 7Functional block diagram of the detection combination of the third embodiment of the present application.

[0029] Figure 8 Functional block diagram of the detection combination of the fourth embodiment of the present application.

[0030] Wherein, the reference signs are explained as follows:

[0031] 10 user finger

[0032] 12 blood vessel

[0033] 14 ring

[0034] 16 shell

[0035] 18 detection combination

[0036] 20 internal space

[0037] 22 ring type area

[0038] 24 recessed area

[0039] 26 first side edge

[0040] 28 lower abdomen

[0041] 30 second side edge

[0042] 32 first detection module

[0043] 34 second detection module

[0044] 36 configuration space

[0045] 38 outer surface

[0046] 40 electricity storage module

[0047] 42 charging module

[0048] 44 information transmission module

[0049] 46 induction module

[0050] 47 first light transmission sheet

[0051] 48 second light transmission sheet

[0052] 50 first light source

[0053] 52 second light source

[0054] 54 light receiver

[0055] 56 first light receiver

[0056] 58 second light receiver

[0057] 60 light source

[0058] 62 first light receiver

[0059] 64 first light source

[0060] 66 second light receiver

[0061] 68 second light source

[0062] 70 first light receiver

[0063] 72 first light source

[0064] 74 second light receiver

[0065] 76 second light source DETAILED DESCRIPTION

[0066] Referring to Figure 1 and Figure 2 . Figure 1 a schematic diagram of the blood vessel distribution of a user's finger 10, Figure 2 a schematic diagram of a user's finger 10 wearing a ring 14 according to an embodiment of the present application. From Figure 1 It can be seen that the blood vessels 12 of a user's finger 10 are mainly distributed on both sides of the finger pulp, i.e. the lateral arteries. In order to measure the physiological information of a user to determine the health status and exercise condition of the user, the absorption ratio of oxygenated hemoglobin to light signals of different wavelength ranges is usually used to determine the oxygenation degree of hemoglobin, so as to obtain the blood oxygen saturation of the user's arteries. Therefore, measuring the lateral arteries of a user's finger 10 (i.e. the blood vessels 12) can obtain preferred data.

[0067] The present application designs a smart ring 14 for detecting the physiological information of a user by using optical detection technology. The appearance of the ring 14 is similar to that of a general ring, which can be a closed circle, or an open ring, or have an appearance with any shaped device. The inside of the ring 14 has a special structural design; when the ring 14 is worn on a user's finger 10, it can effectively limit the rotational displacement of the ring 14 on the user's finger 10, so as to fix the relative angle between the user's finger 10 and the ring 14, and ensure that the optical detection signal of the ring 14 can be stably aligned with the blood vessels 12 of the user's finger 10, so as to obtain accurate blood oxygen saturation.

[0068] Referring to Figure 3 and Figure 4 . Figure 3 a schematic diagram of the appearance of a ring 14 according to an embodiment of the present application, Figure 4FIG. 1 is a perspective view of a finger ring 14 according to an embodiment of the present application. The finger ring 14 can include a housing 16 and a detection assembly 18. An inner space 20 of the finger ring 14 is configured to accommodate a user's finger 10. The inner space 20 can include a ring-shaped region 22 and a concave region 24. The ring-shaped region 22 covers the back of the user's finger 10, and the concave region 24 contacts the palm of the user's finger 10. The maximum width of the ring-shaped region 22 can be greater than that of the concave region 24, so that the palm of the user's finger 10 can be naturally positioned in the concave region 24 when the finger ring 14 is worn. The concave region 24 can be further divided into a first side edge 26, a lower abdomen 28, and a second side edge 30 connected in sequence. The first side edge 26 and the second side edge 30 are located on both sides of the lower abdomen 28 and are connected to two opposite ends of the ring-shaped region 22, respectively. The first side edge 26 and the second side edge 30 can contact the sides of the user's finger 10 and align with the blood vessels 12, respectively.

[0069] The detection assembly 18 can be disposed in the housing 16 and can be made of a cushioning material (e.g., rubber or adhesive) or a hard material (e.g., plastic or metal) to maintain the position of the detection assembly 18 in the housing 16. The detection assembly 18 can include a first detection module 32 and a second detection module 34 disposed on the first side edge 26 and the second side edge 30, respectively. The first detection module 32 and the second detection module 34 can each have a light receiver and / or a light source, and various possible variations of the present application will be described below. The light source of the detection assembly 18 can output red light signals having a wavelength range of 600-750 nm and infrared light signals having a wavelength range of 760-900 nm. In addition, the detection assembly 18 can use an image sensor, a photodiode, or a photoresistor as the light receiver, which can absorb light signals and convert them into energy signals. The red light and the infrared light are alternately emitted to the user's finger 10 and penetrate the skin to be reflected and absorbed by the blood in the blood vessels. Since the amount of absorption of light signals of different wavelength ranges by oxyhemoglobin is different, the detection assembly 18 can analyze the absorption ratio of red light and infrared light obtained by the light receiver to obtain the blood oxygen saturation.

[0070] The shell 16 also has a configuration space 36 between the internal space 20 and the outer surface 38 of the shell 16. The ring 14 can further include a power storage module 40, a charging module 42, an information transmission module 44, and an induction module 46, which are electrically connected to the detection combination 18. The power storage module 40 can supply power to the detection combination 18. The charging module 42 can supplement power to the power storage module 40 by wired or wireless means. The information transmission module 44 can send the detection results of the detection combination 18 to an external electronic device for recording or analysis by wired or wireless transmission. The induction module 46 can be disposed on the inner surface of the internal space 20. The induction module 46 can be a capacitive sensor or a more power-saving type of sensor. The induction module 46 can serve as a switch for the ring 14; when the user's finger 10 wears the ring 14, the induction module 46 can sense the signal change to determine whether it is in contact with the user's finger 10, thereby corresponding to start or stop the detection combination 18.

[0071] The power storage module 40, the charging module 42, and the information transmission module 44 can be disposed in the configuration space 36. However, if there is enough space on both sides or above the ring-shaped area 22, that is, in the range between the ring-shaped area 22 and the outer surface 38, the power storage module 40, the charging module 42, and the information transmission module 44 can also be disposed in the range on both sides or above the ring-shaped area 22.

[0072] The shell 16 can also optionally have a first light-transmitting sheet 47 and a second light-transmitting sheet 48 disposed on the first side edge 26 and the second side edge 30 of the recessed area 24, respectively, to cover the first detection module 32 and the second detection module 34, allowing the light signals emitted or received by the first detection module 32 and the second detection module 34 to pass through. The first light-transmitting sheet 47 and the second light-transmitting sheet 48 can be made of general light-transmitting materials or optical elements with light-concentrating functions, such as concave lenses, convex lenses, light pipes, prism sheets, or micro-lens combinations.

[0073] Please refer to Figure 5 , Figure 5 is a functional block diagram of the detection combination 18 of the first embodiment of the present application. The first detection module 32 of the detection combination 18 can have a first light source 50, and the second detection module 34 can have a second light source 52 and a light receiver 54. The first light source 50 and the second light source 52 can be red light sources and infrared light sources, respectively. The light receiver 54 receives a first penetrating light signal (red light signal and infrared light signal) output by the first light source 50 and penetrating the user's finger 10, and a second reflected light signal (infrared light signal and red light signal) output by the second light source 52 and reflected by the user's finger 10.

[0074] Please refer to Figure 6 , Figure 6A functional block diagram of the detection assembly 18 of the second embodiment of the present application is shown in FIG. 4. The first detection module 32 of the detection assembly 18 has a first light receiver 56, and the second detection module 34 has a second light receiver 58 and a light source 60. The first light receiver 56 receives a first transmitted light signal (red light signal and infrared light signal) outputted from the light source 60 and transmitted through the user's finger 10, and the second light receiver 58 receives a second reflected light signal (infrared light signal and red light signal) outputted from the light source 60 and reflected by the user's finger 10.

[0075] Referring to FIG. 5, Figure 7 , Figure 7 A functional block diagram of the detection assembly 18 of the third embodiment of the present application is shown in FIG. 6. The first detection module 32 of the detection assembly 18 has a first light receiver 62 and a first light source 64, and the second detection module 34 has a second light receiver 66 and a second light source 68. The first light receiver 62 receives a first reflected light signal (red light signal and infrared light signal) outputted from the first light source 64 and reflected by the user's finger 10, and the second light receiver 66 receives a second reflected light signal (infrared light signal or red light signal) outputted from the second light source 68 and reflected.

[0076] Referring to FIG. 7, Figure 8 , Figure 8 A functional block diagram of the detection assembly 18 of the fourth embodiment of the present application is shown in FIG. 8. The first detection module 32 of the detection assembly 18 has a first light receiver 70 and a first light source 72, and the second detection module 34 has a second light receiver 74 and a second light source 76. The first light receiver 70 receives a second transmitted light signal (red light signal and infrared light signal) outputted from the second light source 76 and transmitted through the user's finger 10, and the second light receiver 74 receives a first transmitted light signal (red light signal and infrared light signal) outputted from the first light source 72 and transmitted through the user's finger 10.

[0077] Referring to the above-mentioned embodiments, the ring 14 of the present application is not limited to the configuration of the receivers and light sources of the first detection module 32 and the second detection module 34, and the practical application state is not limited to the four embodiments disclosed in the present application. As long as the ring 14 is applied to the inner space 20 of the shell 16 composed of the ring-shaped area 22 and the recessed area 24, it is within the design scope of the present application. The first detection module 32 and the second detection module 34 can be a transmission type detection module and / or a reflection type detection module, depending on the design requirements.

[0078] In the present application, the detection combination 18 can first start the reflective detection module to perform the detection of the reflective blood oxygen saturation; if the quality of the detection result meets the requirements, the detection result can be directly used as the final detection output value, or the detection result of the transmissive detection module is started and obtained, and is compared with the detection result of the reflective detection module to determine. If the quality of the detection result of the reflective blood oxygen saturation does not meet the requirements, the detection result of the transmissive detection module is started and obtained, and the detection result of the transmissive detection module is used as the final detection output value. Alternatively, the detection combination 18 can also select to alternately start the transmissive detection module and the reflective detection module, for example, the starting time of the first light source of the first detection module 32 and the starting time of the second light source of the second detection module 34 do not overlap, or the starting time of the receiver of the first detection module 32 and the starting time of the receiver of the second detection module 34 do not overlap, and then the noise quality of the two detection results is analyzed to select one of the detection results as the final detection output value.

[0079] It should be mentioned that the first light source of the first detection module 32 alternately outputs light signals of different wavelength ranges, such as red light signals with a wavelength range of 600-750 nm and infrared light signals with a wavelength range of 760-900 nm, through manual or automatic switching; the second light source of the second detection module 34 also alternately outputs light signals of different wavelength ranges, which can be approximately or the same as the wavelength range of the light signal output by the first detection module, or at least partially not overlapping with the wavelength range of the first detection module 32. The light output path provided by the first detection module 32 does not intersect the light output path provided by the second detection module 34, so that the detection combination 18 has a preferred detection quality.

[0080] In summary, the ring of the present application designs the internal space into a ring-shaped area and a recessed area. The ring-shaped area and the recessed area wrap and hold the user's finger, and the recessed area can fix the user's finger, so that the user's finger does not rotate and deviate relative to the ring, ensuring that the detection combination of the ring can accurately align with the lateral artery of the user's finger, thereby obtaining a preferred blood oxygen saturation. The two detection modules of the detection combination can be a transmissive detection module and a reflective detection module, or both transmissive detection modules, or both reflective detection modules. The detection result of the detection combination can be displayed through the screen of the ring (not drawn in the drawings) or transmitted to an external electronic device for further analysis and display.

[0081] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A ring for detecting a user's physiological information, characterized in that, The ring includes: a shell having an inner space for accommodating a user's finger, the inner space including a ring region and a concave region, the concave region having a first side, a lower abdomen and a second side connected in sequence, the first side and the second side being respectively connected to two sides of the ring region, the ring region covering the back of the user's finger, the lower abdomen of the concave region contacting the finger pulp of the user's finger, and the first side region and the second side region respectively contacting the sides of the user's finger; and a detection assembly arranged in the shell, the detection assembly including a first detection module and a second detection module respectively arranged at the first side and the second side.

2. The finger ring of claim 1, wherein The first detection module has a first light source, the second detection module has a second light source and a light receiver, the light receiver receives a first penetrating light signal output by the first light source and penetrating the finger pulp, and a second reflected light signal output by the second light source and reflected by the finger pulp.

3. The ring of claim 1, wherein The first detection module has a first light receiver, the second detection module has a second light receiver and a light source, the first light receiver receives a penetrating light signal output by the light source and penetrating the finger pulp, and the second light receiver receives a reflected light signal output by the light source and reflected by the finger pulp.

4. The ring of claim 1, wherein The first detection module has a first light receiver and a first light source, the second detection module has a second light receiver and a second light source, the first light receiver receives a first reflected light signal output by the first light source and reflected by the finger pulp, and the second light receiver receives a second reflected light signal output by the second light source and reflected by the finger pulp.

5. The ring of claim 1, wherein The first detection module has a first light receiver and a first light source, the second detection module has a second light receiver and a second light source, the first light receiver receives a second penetrating light signal output by the second light source and penetrating the finger pulp, and the second light receiver receives a first penetrating light signal output by the first light source and penetrating the finger pulp.

6. The ring of claim 1, wherein The light output path provided by the first detection module does not intersect the light output path provided by the second detection module.

7. The ring of claim 1, wherein The first detection module has a first light source, the second detection module has a second light source, and the activation time of the first light source and the activation time of the second light source do not overlap.

8. The ring of claim 1, wherein The shell further includes a configuration space between the inner space and the outer surface of the shell, the ring further includes a power storage module, a charging module and an information transmission module arranged in the configuration space.

9. The ring of claim 8, wherein The shell further has a first light-transmitting sheet and a second light-transmitting sheet, the first light-transmitting sheet and the second light-transmitting sheet are respectively arranged at the first side and the second side of the concave region, and cover the first detection module and the second detection module respectively.

10. The ring of claim 1, wherein The ring further includes an induction module electrically connected to the detection assembly and arranged on the inner surface of the inner space, the induction module is used to sense signal changes to determine whether the user's finger is contacted, and to start or stop the detection assembly accordingly.

11. The ring of claim 1, wherein The physiological information is blood oxygen saturation, and the first detection module and the second detection module each output multiple light signals of different wavelength ranges.

12. The finger ring of claim 11, wherein The first detection module alternately outputs the light signals of different wavelength ranges, and the second detection module alternately outputs the light signals of different wavelength ranges.

13. The ring of claim 1, wherein The maximum width of the annular region is greater than the maximum width of the recessed region.

14. The ring of claim 1, wherein The first detection module and the second detection module each belong to one of a transmission detection module and a reflection detection module.

15. The ring of claim 1, wherein The first detection module has a first light source, the second detection module has a second light source, and the wavelength ranges of the first light source and the second light source at least partially do not overlap.

16. The ring of claim 1, wherein The first detection module has a first light source, and the first light source can switch to emit light signals of different wavelength ranges.

17. The ring of claim 1, wherein The second detection module has a second light source, and the second light source can switch to emit light signals of different wavelength ranges.

Citation Information

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