Medical-grade transmission-method blood oxygen ring

By setting up a transmitter and receiver tube with an angle of 110° in a ring-type pulse oximeter, and using a dual-light source transmission method to measure blood oxygen saturation, the problem of interference from bone tissue and subcutaneous fat layer in reflective measuring instruments is solved, and higher measurement accuracy is achieved.

CN120788573APending Publication Date: 2025-10-17DAWEI HEALTH MEDICAL TECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202511171609.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

Existing ring-type pulse oximeters, when using a reflective measurement method, are easily affected by scattering interference from bone tissue and subcutaneous fat layer, resulting in large measurement errors.

Method used

Employing a transmitter and receiver tube with an angle of 110°, the dual-source transmission method penetrates the fingertip to emit red and infrared light, avoiding scattering interference from bone tissue and subcutaneous fat layer on the optical signal and improving measurement accuracy.

Benefits of technology

Measuring blood oxygen saturation using the transmission method reduces interference from bone tissue and subcutaneous fat layer on the signal, thus improving the accuracy of the measurement results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a medical-grade transmission method blood oxygen ring which comprises a main board used for monitoring human body blood oxygen saturation data and a lithium battery used for providing a power source, the main board and the lithium battery are packaged on the inner side of an upper ring body and the inner side of a lower ring body respectively, and a power line is arranged at the output end of the lithium battery. The power line penetrates through the upper ring, the lower ring is installed on a power supply interface of the main board, a transmitting tube and a receiving tube are arranged at the two ends of the main board respectively, the transmitting tube is used for transmitting red light and infrared light to penetrate through a finger pulp to detect the oxyhemoglobin saturation, the receiving tube is used for receiving transmission light signals after penetrating through finger pulp tissue, and the transmitting tube and the receiving tube are distributed at an included angle of 110 degrees. According to the medical-grade transmission-method blood oxygen ring, a transmission-type method is adopted for penetrating through the finger pulp, the blood oxygen saturation degree is measured according to the intensity of transmission light attenuated after penetrating through the skin, the fat layer and the capillary bed, scattering interference of an optical signal by bone tissue and the subcutaneous fat layer is avoided, and the accuracy of a measurement result is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blood oxygen monitoring devices, in particular to a medical-grade transmission method blood oxygen ring. BACKGROUND

[0002] The blood oxygen saturation is the percentage of hemoglobin combined with oxygen in the blood, which is an important indicator for assessing the oxygenation capacity of the body and whether it is hypoxic, and is also one of the key physiological parameters in clinical practice.

[0003] At present, there are two types of instruments for long-term continuous measurement: a monitor with a separate measurement host and a photoelectric sensor, and a handheld blood oxygen saturation measurement instrument, but they are large in size and inconvenient to wear, so a finger clip type blood oxygen saturation measurement instrument appears, but this type of device is easy to fall off, in order to solve the problem of falling off, the market has launched a ring type blood oxygen saturation measurement instrument, which is worn on the finger and is not easy to fall off.

[0004] However, due to the large thickness of the bone in the conventional wearing position of the ring (finger bone area), the optical signal cannot penetrate, and most of the existing ring type blood oxygen saturation measurement instruments use reflective measurement method to monitor blood oxygen saturation, but when using the reflective measurement method to monitor blood oxygen saturation, not only is the effective light intensity attenuated due to bone tissue absorption, but the signal path is also disturbed by the scattering of the subcutaneous fat layer, resulting in measurement result error.

[0005] Therefore, there is an urgent need for a medical-grade transmission method blood oxygen ring with high measurement accuracy. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a medical-grade transmission method blood oxygen ring, which adopts a double-light-source transmission method to penetrate the finger palm part to measure blood oxygen saturation by setting the emitting tube and the receiving tube with an included angle of 110°, avoiding the interference of bone tissue and subcutaneous fat layer scattering on the optical signal, and improving the accuracy of the measurement result, to solve the problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The application discloses a medical-grade transmission blood oxygen ring, which comprises a ring upper ring and a ring lower ring which are rotatable relative to each other, an adjusting mechanism arranged between the ring upper ring and the ring lower ring and used for controlling opening and closing of the ring, and a mainboard used for monitoring blood oxygen saturation data of a human body and a lithium battery used for providing power which are respectively packaged in inner sides of the ring upper ring and the ring lower ring, wherein an output end of the lithium battery is provided with a power line, the power line penetrates through the ring upper ring and the ring lower ring and is installed at a power supply interface of the mainboard, two ends of the mainboard are respectively provided with a transmitting tube and a receiving tube, the transmitting tube is used for transmitting red light and infrared light to penetrate a finger pulp to detect blood oxygen saturation, the receiving tube is used for receiving transmission light signals after penetrating the finger pulp tissue, and the transmitting tube and the receiving tube are distributed at an included angle of 110 degrees.

[0009] As a further scheme of the application, the output end of the transmitting tube is integrated with a double-light-source transmitting module, and the double-light-source transmitting module simultaneously emits 660nm red light and 940nm infrared light.

[0010] As a further scheme of the application, the mainboard is a flexible circuit board, and comprises a blood oxygen signal processing module and a Bluetooth communication module, wherein the blood oxygen signal processing module is used for converting the transmission light signals after penetrating the finger pulp tissue into digital signals, and the Bluetooth communication module is used for transmitting the digital signals to a control terminal to display blood oxygen saturation monitoring results through the control terminal.

[0011] As a further scheme of the application, the inner sides of the ring upper ring and the ring lower ring are respectively provided with an upper groove and a lower groove, and the mainboard and the lithium battery are respectively packaged in the inner sides of the upper groove and the lower groove through high-transmittance biocompatible glue.

[0012] As a further scheme of the application, the high-transmittance biocompatible glue forms an encapsulating glue block after solidification, and the encapsulating glue block comprises an annular plate and an annular protrusion, wherein the annular plate covers the inner sides of the ring upper ring and the ring lower ring to close the upper groove and the lower groove, and the annular protrusion is sealed in the upper groove and the lower groove to fix and seal the mainboard and the lithium battery.

[0013] As a further scheme of the application, the inner side of the ring upper ring is provided with an upper communicating groove which is communicated with the upper groove at one side of the upper groove, and the power line extends to the outside of the ring upper ring through the upper communicating groove.

[0014] As a further scheme of the application, the inner side of the ring lower ring is provided with a lower communicating groove at one end of the lower groove, a through hole which is communicated with the lower groove is formed in the bottom of the lower communicating groove, and one end of the power line which is located outside the ring upper ring penetrates through the lower communicating groove and the through hole and is installed at the power supply interface of the mainboard.

[0015] Compared with the prior art, the application has the following advantages:

[0016] By setting the lithium battery and the main board, the emitting tube and the receiving tube distributed at an included angle of 110° on the main board are used to emit and receive 660nm red light and 940nm infrared light, the red light and the infrared light penetrate the thin part of the finger palm, the blood oxygen saturation is measured according to the transmission light intensity after penetrating the skin, the fat layer and the capillary bed, the optical signal is avoided from being interfered by the bone tissue and the subcutaneous fat layer scattering, the accuracy of the measurement result is improved, and the problem of inaccurate reflection measurement is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A perspective view of a medical-grade transmission-type blood oxygen ring according to an embodiment of the present application;

[0019] Figure 2 A perspective view of an upper ring of a ring according to an embodiment of the present application;

[0020] Figure 3 A perspective view of a lower ring of a ring according to an embodiment of the present application;

[0021] Figure 4 A perspective view of a packaging adhesive block according to an embodiment of the present application;

[0022] Figure 5 A perspective view of a main board and a lithium battery according to an embodiment of the present application;

[0023] Figure 6 An assembly view of a main board and a lithium battery according to an embodiment of the present application.

[0024] In the figure: 1, upper ring of the ring; 101, upper groove; 102, upper communication groove; 2, lower ring of the ring; 201, lower groove; 202, lower communication groove; 203, through hole; 3, main board; 31, emitting tube; 32, receiving tube; 4, lithium battery; 5, power line; 6, packaging adhesive block; 61, annular plate; 62, annular protrusion. DETAILED DESCRIPTION

[0025] In the description of the present application, it needs to be understood that the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation to the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, the term "comprising" and any variation thereof is intended to cover non-exclusive inclusion.

[0026] In combination Figures 1-6 As shown in the embodiment, a medical grade transmission method blood oxygen ring, comprising: a ring upper ring 1 and a ring lower ring 2 rotating with each other, an adjusting mechanism for controlling the opening and closing of the ring is arranged between the ring upper ring 1 and the ring lower ring 2, the adjusting mechanism comprises a rotating shaft and a torsional spring, wherein the rotating shaft is arranged between the two vertical plates at one end of the ring lower ring 2, the torsional spring is sleeved on the outer wall of the rotating shaft, one end of the ring upper ring 1 is provided with two supporting plates, the two supporting plates are respectively clamped on the outer side of the two vertical plates, and the two ends of the rotating shaft are respectively penetrated through the vertical plates and rotatably installed on the inner side wall of the supporting plates; the rotating shaft is used to drive the ring upper ring 1 and the ring lower ring 2 to rotate with each other, control the opening and closing of the ring, wear the ring on the finger, and apply an external force to the torsional spring through the torsional arm, at the same time, by controlling the opening size of the ring, the caliber of the ring is adapted to the finger circumference of the user, the wearing of the finger with different size finger circumference is satisfied, finally, the ring upper ring 1 and the ring lower ring 2 are self-locked on the finger of the user under the action of the restoring force of the torsional spring, and the locking after the ring is worn is realized.

[0027] In the embodiment, the inner side of the upper ring 1 and the lower ring 2 of the ring is respectively packaged with a mainboard 3 for monitoring the human blood oxygen saturation data and a lithium battery 4 for providing power, wherein the output end of the lithium battery 4 is provided with a power line 5, the power line 5 penetrates the upper ring 1 and the lower ring 2 of the ring, and is installed on the power supply interface of the mainboard 3, both ends of the mainboard 3 are respectively provided with a transmitting tube 31 and a receiving tube 32, the transmitting tube 31 is used for transmitting red light and infrared light to penetrate the finger pulp to detect the blood oxygen saturation, the receiving tube 32 is used for receiving the transmitted light signal after penetrating the finger pulp tissue, and the transmitting tube 31 and the receiving tube 32 are distributed at an included angle of 110°; the transmitting tube 31 and the receiving tube 32 distributed at an included angle of 110° on the mainboard 3 are used for emitting and receiving red light and infrared light, the red light and the infrared light penetrate the thin part of the finger pulp, the blood oxygen saturation is measured according to the transmitted light intensity after penetrating the skin, the fat layer and the capillary bed, the optical signal is prevented from being interfered by the scattering of the bone tissue and the subcutaneous fat layer, and the accuracy of the measurement result is improved.

[0028] In the embodiment, the output end of the transmitting tube 31 is integrated with a double-light-source emitting module, the double-light-source emitting module simultaneously emits 660nm red light and 940nm infrared light; the double-light-source emitting module is used for simultaneously emitting 660nm red light and 940nm infrared light, deoxyhemoglobin preferentially absorbs 660nm red light, and oxyhemoglobin preferentially absorbs 940nm infrared light, the blood oxygen saturation is measured according to the transmitted light intensity after attenuation, and the measurement of the blood oxygen saturation is realized.

[0029] In the embodiment, the mainboard 3 is a flexible circuit board, which comprises a blood oxygen signal processing module and a Bluetooth communication module, wherein the blood oxygen signal processing module is used for converting the transmitted light signal after penetrating the finger pulp tissue into a digital signal, the Bluetooth communication module is used for transmitting the digital signal to a control terminal, and the blood oxygen saturation monitoring result is displayed through the control terminal; the transmitted light signal after attenuation after penetrating the skin, the fat layer and the capillary bed is received through the receiving tube 32, the transmitted light signal is converted into an electric signal, the electric signal is converted into a digital signal by the blood oxygen signal processing module, the digital signal is transmitted to the control terminal through the Bluetooth communication module, and the blood oxygen saturation monitoring result is displayed.

[0030] In the embodiment, the inner side of the upper ring 1 and the lower ring 2 of the ring is respectively provided with an upper groove 101 and a lower groove 201, and the mainboard 3 and the lithium battery 4 are respectively packaged in the inside of the upper groove 101 and the lower groove 201 by high-transmittance biocompatible glue; the mainboard 3 and the lithium battery 4 are packaged by the high-transmittance biocompatible glue, the medical-grade sealing of the mainboard 3 and the lithium battery 4 is realized, and the waterproofness of the ring is improved.

[0031] In this embodiment, the high-transmittance biocompatible glue forms a packaging block 6 after solidification, which includes an annular plate 61 and an annular protrusion 62, wherein the annular plate 61 covers the inside of the upper ring 1 and the lower ring 2 of the ring to close the opening of the upper groove 101 and the lower groove 201, and the annular protrusion 62 blocks the inside of the upper groove 101 and the upper communication groove 102 to fix and seal the main board 3 and the lithium battery 4; since the packaging block 6 formed by the high-transmittance biocompatible glue after solidification is a flexible elastic body, the contact between the packaging block 6 and the finger pulp will not cause the skin of the finger to feel hard compression, thereby improving the wearing comfort.

[0032] In this embodiment, the inside of the upper ring 1 is provided with an upper communication groove 102 connected thereto at one side of the upper groove 101, the power line 5 extends to the outside of the upper ring 1 through the upper communication groove 102, the inside of the lower ring 2 is provided with a lower communication groove 202 at one end of the lower groove 201, the bottom of the lower communication groove 202 is provided with a through hole 203 connected to the lower groove 201, and one end of the power line 5 is installed in the power supply interface of the main board 3 through the lower communication groove 202 and the through hole 203; the power line 5 can be arranged in the upper communication groove 102, the lower communication groove 202 and the through hole 203 to be connected with the lithium battery 4 and the main board 3, so that the opening and closing of the ring will not interfere with the power line 5, thereby ensuring the use of the main board 3.

[0033] The working principle of the present application is as follows: the medical-grade transmission method blood oxygen ring proposed in the present application is provided with an emission tube 31 and a receiving tube 32 distributed at an included angle of 110° on the main board 3 of the lower ring 2, the integrated double-light-source emission module at the output end of the emission tube 31 simultaneously emits 660nm red light and 940nm infrared light to penetrate the finger pulp, deoxyhemoglobin preferentially absorbs 660nm red light, and oxyhemoglobin preferentially absorbs 940nm infrared light, then the receiving tube 32 receives the transmission light signal attenuated after penetrating the skin, fat layer and capillary bed, converts the transmission light signal into an electric signal, the blood oxygen signal processing module converts the electric signal into a digital signal, the digital signal is transmitted to the control terminal through the Bluetooth communication module, the blood oxygen saturation monitoring result is displayed, the blood oxygen saturation is monitored, the blood oxygen saturation is measured according to the transmission light intensity attenuated after penetrating the skin, fat layer and capillary bed, the optical signal is prevented from being interfered by bone tissue and subcutaneous fat layer scattering, the accuracy of the measurement result is improved, and the problem of inaccurate reflection type measurement is solved.

[0034] The above description is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A medical-grade transmissive blood oxygen ring, comprising: An upper ring (1) and a lower ring (2) are provided between the upper ring (1) and the lower ring (2) for controlling the opening and closing of the ring. The invention is characterized in that the inner sides of the upper ring (1) and the lower ring (2) are respectively encapsulated with a mainboard (3) for monitoring human blood oxygen saturation data and a lithium battery (4) for providing power, wherein the output end of the lithium battery (4) is provided with a power line (5), the power line (5) passes through the power supply interface of the upper ring (1) and the lower ring (2) and is installed on the mainboard (3), and the two ends of the mainboard (3) are respectively provided with a transmitting tube (31) and a receiving tube (32), the transmitting tube (31) is used to transmit red light and infrared light to penetrate the finger pulp to detect blood oxygen saturation, and the receiving tube (32) is used to receive the transmitted light signal after penetrating the finger pulp tissue, and the transmitting tube (31) and the receiving tube (32) are distributed at an angle of 110 degrees.

2. The medical-grade transmissive blood oxygen ring according to claim 1, characterized in that: The output end of the transmitting tube (31) is integrated with a dual-light source transmitting module, and the dual-light source transmitting module simultaneously emits 660nm red light and 940nm infrared light.

3. The medical-grade transmissive blood oxygen ring according to claim 1, characterized in that: The main board (3) is a flexible circuit board, comprising a blood oxygen signal processing module and a Bluetooth communication module, wherein the blood oxygen signal processing module is used to convert the transmitted light signal after penetrating the fingertip tissue into a digital signal, and the Bluetooth communication module is used to transmit the digital signal to the control terminal, and the blood oxygen saturation monitoring result is displayed through the control terminal.

4. The medical-grade transmissive blood oxygen ring according to claim 1, characterized in that: An upper groove (101) and a lower groove (201) are respectively provided on the inner sides of the upper ring (1) and the lower ring (2); the mainboard (3) and the lithium battery (4) are respectively encapsulated in the upper groove (101) and the lower groove (201) by highly permeable biocompatible glue.

5. The medical-grade transmissive blood oxygen ring according to claim 4, characterized in that: The highly permeable biocompatible glue forms a packaging glue block (6) after solidification, and the packaging glue block (6) comprises an annular plate (61) and an annular protrusion (62), wherein the annular plate (61) covers the inner side of the ring upper ring (1) and the ring lower ring (2) to close the openings of the upper groove (101) and the lower groove (201), and the annular protrusion (62) blocks the interior of the upper groove (101) and the upper connecting groove (102) to fix and seal the main board (3) and the lithium battery (4).

6. The medical-grade transmissive blood oxygen ring according to claim 4, characterized in that: An upper connecting groove (102) communicating with the upper groove (101) is provided on the inner side of the ring upper ring (1), and the power line (5) passes through the upper connecting groove (102) and extends to the outside of the ring upper ring (1).

7. The medical-grade transmissive blood oxygen ring according to claim 4, characterized in that: The inner side of the ring lower ring (2) is provided with a lower connecting groove (202) at one end of the lower groove (201), and the bottom of the lower connecting groove (202) is provided with a through hole (203) connected to the lower groove (201), and the end located outside the ring upper ring (1) passes through the lower connecting groove (202), and the through hole (203) is installed on the power supply interface of the mainboard (3).