Photoelectric volume pulse wave recording device and optical blood pressure measuring device

Abstract

To provide a photoelectric volume pulse wave recording (PPG) measuring device capable of reducing the pressure applied to the object being measured. [Solution] The present invention provides a photoelectric volume pulse wave recording measuring device comprising: an outer housing; an inner housing coupled to the outer housing and movable relative to the outer housing, wherein the space between the outer housing and the inner housing includes a housing space for housing an object to be measured, the spatial dimensions of the housing space change according to the relative movement between the outer housing and the inner housing; a first magnetic unit provided on the outer surface of the outer housing; a second magnetic unit provided on the inner surface of the inner housing; and an optical signal module coupled to the outer housing and configured to measure an object to be measured, wherein there is a magnetic force between the first magnetic unit and the second magnetic unit, and the spatial dimensions of the housing space are adapted to the object dimensions of the object to be measured by the magnetic force.

Description

Technical Field

[0001] The present invention relates to the field of optical measurement, and more specifically, to the technologies of a photoplethysmography (PPG) measurement device and an optical blood pressure measurement device.

Background Art

[0002] The feature of photoplethysmography (PPG) is a method capable of measuring and calculating blood pressure. However, when performing measurement and calculation using PPG features, when pressure is applied to the measurement object itself or its surroundings, the PPG feature waveform becomes extremely unstable. The PPG feature waveform not only continuously changes, but there are significant differences between each waveform, and in severe cases, there is even a tendency for the PPG feature waveform to gradually disappear. Therefore, how to reduce the pressure applied to the measurement object becomes very important.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention has been made to solve the above problems, and provides a PPG measurement device and an optical blood pressure measurement device.

Means for Solving the Problems

[0004] To solve the above problems, in a first embodiment of the present invention, the PPG measurement module includes an outer housing, an inner housing coupled to the outer housing and movable relative to the outer housing, the inner housing having a housing space for accommodating an object to be measured, the spatial dimensions of the housing space changing in accordance with the relative movement between the outer housing and the inner housing, a first magnetic unit provided on the outer surface of the outer housing, a second magnetic unit provided on the inner surface of the inner housing, and an optical signal module coupled to the outer housing and configured to measure an object to be measured, wherein there is a magnetic force between the first magnetic unit and the second magnetic unit, and the spatial dimensions of the housing space are adapted to the object dimensions of the object to be measured by the magnetic force.

[0005] In some embodiments of the first aspect of the present invention, an optical signal module is used to receive detection light after measuring an object to be measured with emitted light, or to emit emitted light, the emitted light having an emission wavelength, the emission wavelength being selected based on the effect of blood oxygen concentration on light absorption.

[0006] In some embodiments of the first aspect of the present invention, the emission wavelength is selected from a low-influence light wavelength band where the light absorption rate is not affected by the blood oxygen concentration.

[0007] In some embodiments of the first aspect of the present invention, the present invention further includes an outer cover coupled to an outer housing to form a first element assembly, and an inner cover coupled to an inner housing to form a second element assembly and to form a housing space between itself and the inner housing.

[0008] In some embodiments of the first aspect of the present invention, the inner housing further includes an inner housing base coupled to an inner cover, wherein a housing space is formed by the inner housing base and the inner cover, and a first element assembly covers the inner housing base and the inner cover; and an elastic vane portion projecting outward from one of the two sides of the inner housing base and extending along the outer surface of the outer housing to cover the outer housing, wherein a second magnetic unit is provided on the inner surface of the vane portion of the elastic vane portion, and by either the elastic force or the magnetic force of the elastic vane portion, the outer housing approaches the outer cover, so that the spatial dimensions of the housing space are adapted to the object dimensions of the object to be measured, and the interaction between the magnetic force and the elastic force reduces the pressure that the inner cover applies to the object to be measured.

[0009] In some embodiments of the first aspect of the present invention, the outer housing includes a first sliding part, and the outer cover includes a second sliding part, and the first sliding part and the second sliding part are slidably coupled, allowing relative movement between the first sliding part and the second sliding part to adjust the spatial dimensions of the housing space.

[0010] In some embodiments of the first aspect of the present invention, the connecting shaft is coupled to an outer cover and further includes a connecting shaft in which a first sliding portion includes a first sliding shaft and a first slide rail, a second sliding portion includes a second slide rail, the first sliding shaft and the second slide rail are slidably coupled so that the first sliding shaft is slidable on the second slide rail along a first sliding direction, and the first slide rail is slidably coupled to the first slide rail so that it is slidable on the first slide rail along a second sliding direction.

[0011] In some embodiments of the first aspect of the present invention, the second element assembly has an opening and a joint, and the inner surface of the inner housing has an inclination angle along the front-to-back direction from the opening to the joint, thereby making the opening cross-sectional area of ​​the housing space larger than the joint cross-sectional area of ​​the joint.

[0012] In some embodiments of the first aspect of the present invention, the joint portion has a joint surface, the central part of the inner surface of the inner housing has a central diagonal line along the front-rear direction, and the angle of inclination between the central diagonal line and the normal to the joint surface is 3 to 7 degrees.

[0013] In some embodiments of the first aspect of the present invention, there is an inner housing friction portion adjacent to the housing space on the inner surface of the inner housing, and the inner housing friction portion has a higher coefficient of friction than other parts of the inner surface of the inner housing.

[0014] To solve the above problems, in a second embodiment of the present invention, the optical blood pressure measuring device includes a magnetic levitation measuring device which is a PPG measuring device described in some embodiments of the first aspect of the present invention, and a calculation module coupled to the magnetic levitation measuring device which calculates blood pressure data based on the measurement signal acquired by the magnetic levitation measuring device. [Brief explanation of the drawing]

[0015] Each aspect of the present invention can be best understood by the following detailed disclosure and corresponding drawings. Each feature is not necessarily depicted to scale. For clarity in the description, the dimensions of each feature may be arbitrarily enlarged or reduced.

[0016] [Figure 1] This is a block diagram of an optical biosignal measuring device relating to one or more technologies of the present disclosure. [Figure 2] This is a schematic diagram showing the absorption spectra of the emitted light in HbO2 and Hb, respectively, relating to one or more of the technologies of this disclosure. [Figure 3A] This diagram shows schematic representations of PPG signal waveforms, respectively, for one or more technologies of the present disclosure, when no pressure is applied to the object being measured and when pressure is applied to its surroundings. [Figure 3B] This diagram shows schematic representations of PPG signal waveforms, respectively, for one or more technologies of the present disclosure, when no pressure is applied to the object being measured and when pressure is applied to its surroundings. [Figure 4A]A perspective view when the optical biological signal measurement device illustrated in FIG. 1 measures a measurement object according to one or more technologies of the present disclosure. [Figure 4B] A perspective view of a clip-type measurement device illustrated in FIG. 4A according to one or more technologies of the present disclosure. [Figure 5] An exploded view along the assembly direction of the clip-type measurement device illustrated in FIG. 4B according to one or more technologies of the present disclosure. [Figure 6A] A perspective view showing an outer cover, an outer housing, and a connecting portion, respectively, illustrated in FIG. 5 according to one or more technologies of the present disclosure. [Figure 6B] A perspective view showing an outer cover, an outer housing, and a connecting portion, respectively, illustrated in FIG. 5 according to one or more technologies of the present disclosure. [Figure 6C] A perspective view showing an outer cover, an outer housing, and a connecting portion, respectively, illustrated in FIG. 5 according to one or more technologies of the present disclosure. [Figure 7A] A top view of the clip-type measurement device illustrated in FIG. 4B according to one or more technologies of the present disclosure. [Figure 7B] A cross-sectional view of the clip-type measurement device cut along line C1-C1 of FIG. 7A according to one or more technologies of the present disclosure. [Figure 7C] An enlarged view of region E1 illustrated in FIG. 7B according to one or more technologies of the present disclosure. [Figure 7D] A cross-sectional view after the inner cover and the inner housing of the clip-type measurement device illustrated in FIG. 7B move relative to each other along the assembly direction according to one or more technologies of the present disclosure. [Figure 8A] A cross-sectional view of the clip-type measurement device cut along line C2-C2 of FIG. 7A according to one or more technologies of the present disclosure. [Figure 8B] A schematic view when the accommodation space of the clip-type measurement device illustrated in FIG. 8A expands according to one or more technologies of the present disclosure. [Figure 9] A perspective view of another clip-type measurement device 500 according to one or more technologies of the present disclosure. [Figure 10A]A perspective view of a ring-shaped measuring device according to one or more techniques of the present disclosure. [Figure 10B] A schematic diagram when the ring-shaped measuring device illustrated in FIG. 10A measures a measurement object according to one or more techniques of the present disclosure. [Figure 11A] A schematic diagram showing a developed state of the ring element illustrated in FIG. 10A according to one or more techniques of the present disclosure. [Figure 11B] A perspective view showing a ring state of the ring element illustrated in FIG. 10A according to one or more techniques of the present disclosure. [Figure 11C] A perspective view of the optical signal module illustrated in FIG. 10A according to one or more techniques of the present disclosure. [Figure 12] A schematic diagram of the material of the ring element illustrated in FIG. 10A according to one or more techniques of the present disclosure. [Figure 13] An enlarged view of region E2 illustrated in FIG. 10B according to one or more techniques of the present disclosure. [Figure 14A] A perspective view of another ring-shaped measuring device according to one or more techniques of the present disclosure. [Figure 14B] A perspective view from above of the ring-shaped measuring device illustrated in FIG. 14A according to one or more techniques of the present disclosure. [Figure 15A] A perspective view from above of the ring-shaped measuring device illustrated in FIG. 14A according to one or more techniques of the present disclosure. [Figure 15B] A cross-sectional view of the ring-shaped measuring device cut along line C3-C3 of FIG. 15A according to one or more techniques of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

[0017] The following disclosure includes certain information relating to exemplary embodiments in this disclosure. The drawings and detailed disclosure thereof are intended only for exemplary embodiments. However, this disclosure is not limited to these exemplary embodiments. Other variations and embodiments of this disclosure will be conceivable to those skilled in the art. Unless otherwise specified, similar or corresponding elements in the drawings may be indicated by similar or corresponding reference numerals. Also, the drawings and illustrations in this disclosure are not generally to scale and do not necessarily correspond to actual relative dimensions.

[0018] For consistency and ease of understanding, similar features are indicated by numbers in the illustrative drawings (although not in some examples). However, features in different embodiments may differ in other respects and should not be narrowly limited to what is shown in the drawings.

[0019] As used in this disclosure, terms such as “in one embodiment” and “in some embodiments” may each refer to one or more of the same or different embodiments. The term “joined” is defined as being connected directly or indirectly through intervening components, and is not necessarily limited to physical connections. The term “includes” means “includes, but not limited to,” and specifically refers to open-ended inclusions or members of the above combinations, groups, series, and equivalents.

[0020] Furthermore, for descriptive and non-limiting purposes, specific details such as functional entities, technologies, protocols, and standards are included to facilitate understanding of the described technology. In other instances, detailed disclosures of known methods, technologies, systems, and architectures are omitted to avoid obscuring the disclosure with unnecessary details.

[0021] Figure 1 is a block diagram of an optical biosignal measuring device 1 relating to one or more of the technologies of this disclosure. The optical biosignal measuring device 1 includes a computing module 110 and an optical module 120. The computing module 110 and the optical module 120 may be connected by wire or wireless. Figure 1 shows an example of the optical biosignal measuring device 1. The optical biosignal measuring device 1 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used without departing from the spirit of this disclosure.

[0022] In some embodiments, the optical biosignal measuring device 1 can be used to measure various biological data. These biological data may include at least one of the following: blood pressure data, blood oxygen concentration data, blood flow velocity data, blood viscosity data, and other biological data. In some embodiments, when the biological data is blood pressure data, the optical biosignal measuring device 1 can be an optical blood pressure measuring device. In some embodiments, the optical biosignal measuring device 1 can measure various biological data by photoplethysmography (PPG) measurement. Therefore, the optical biosignal measuring device 1 can function as a PPG measuring device.

[0023] The calculation module 110 may be an electronic device that includes any device configured to control the optical module 120 and receive measurement results. The optical module 120 may be an optical device that emits light having an emission wavelength, receives detection light after PPG measurement using the emitted light, and transmits the measurement results to the calculation module 110. The calculation module 110 can calculate biological data, including blood pressure data, based on the detection light by communicating with the optical module 120 via a communication medium, either by wire or wirelessly.

[0024] The arithmetic module 110 may be a mobile phone, tablet computer, desktop computer, notebook computer, server, network computing system, or other electronic device. The arithmetic module 110 may contain more or fewer elements than those shown, or may have a different configuration from those shown.

[0025] The arithmetic module 110 can be implemented as one or more suitable processing circuits, such as one or more microprocessors, a central processing unit (CPU), a graphics processing unit (GPU), a system-on-a-chip (SoC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), discrete logic, software, hardware, firmware, or any combination thereof. When partially implemented as software, the device can perform the disclosed method by storing a program having computer-executable instructions for the software in a suitable non-temporary computer-readable medium and executing the computer-executable instructions in hardware using one or more processors.

[0026] The arithmetic module 110 and the optical module 120 may utilize custom protocols or conform to existing standards or de facto standards, including, but not limited to, Ethernet®, IEEE 802.11 or IEEE 802.15 series, Wireless USB, or telecommunications standards such as GSM® (Global System for Mobile Communications), CDMA2000 (Code-Division Multiple Access 2000), TD-SCDMA (Time Division Synchronous Code Division Multiple Access), WiMAX (Worldwide Interoperability for Microwave Access), 3GPP®-LTE (Third Generation Partnership Project Long-Term Evolution), or TD-LTE (Time-Division LTE). The arithmetic module 110 and the optical module 120 may be configured to transmit and / or store measurement results and receive measurement results via a communication medium, respectively.

[0027] The arithmetic module 110 may include a computer system interface that enables the storage of multiple detection images in a storage device or the reception of images from a storage device. For example, the arithmetic module 110 may include a chipset that supports PCI (Peripheral Component Interconnect) and PCIe (Peripheral Component Interconnect Express) bus protocols, proprietary bus protocols, USB (Universal Serial Bus) protocols, I2C (Inter-Integrated Circuit) protocols, or any other logical and physical structures that can be used for interconnecting peer devices.

[0028] The optical module 120 may further include a light source module 121 and an optical measurement module 122. In some embodiments, when the optical biosignal measurement device 1 functions as a PPG measurement device, the optical module 120 may also function as a PPG measurement module. Thus, the light source module 121 may be a PPG light source module for emitting light to perform PPG measurement, and the optical measurement module 122 may be a PPG optical measurement module for receiving detection light. The detection light may be an optical signal that has changed after the emitted light has performed PPG measurement.

[0029] The emitted light has an emission wavelength. To ensure that the biometric data of the detection light after PPG measurement is not affected by changes in blood oxygen concentration, and to avoid changes in blood oxygen concentration causing unwanted deviations in the biometric data, the emission wavelength of the emitted light may be selected from a low-impact light wavelength band for blood oxygen concentration. In some embodiments, the low-impact light wavelength band for blood oxygen concentration includes multiple wavelengths in which the emitted light has the same or approximate light absorption coefficient for multiple measurement targets with different blood oxygen concentrations. Therefore, when the emission wavelength is selected from a low-impact light wavelength band for blood oxygen concentration, the emitted light has the same or approximate light absorption coefficient for different measurement targets with different blood oxygen concentrations. In some embodiments, the measurement targets may include fingertips, phalanges, wrists, arms, foreheads, temples, ears, or other body parts of the subject.

[0030] In some embodiments, when the optical module 120 is used as a PPG measurement module to measure blood pressure data, if the emission wavelength of the emitted light is selected from the low-influence light wavelength band for blood oxygen concentration, the emitted light can reduce the influence that the light absorption coefficients of multiple measurement targets are affected by multiple blood oxygen concentrations. Therefore, regardless of the level of blood oxygen concentration, the detection light is less likely to absorb different amounts of light energy from measurement targets with different blood oxygen concentrations. Thus, by selecting the emission wavelength, deviations in blood pressure data can be reduced.

[0031] In the optical module 120, blood oxygen concentration data can be calculated based on the difference in absorption rates of different types of hemoglobin in the blood to emitted light having different emission wavelengths. In normal blood, hemoglobin mainly consists of oxyhemoglobin (HbO2) and deoxygenated hemoglobin (Hb). Figure 2 is a schematic diagram showing the absorption spectra of emitted light for HbO2 and Hb, respectively, according to one or more of the technologies of this disclosure. As shown in Figure 2, at different light wavelengths, the emitted light has different light absorption coefficients for HbO2 and Hb. The higher the light absorption coefficient, the higher the light absorption rate of the object being measured relative to the emitted light.

[0032] At several specific wavelengths of light, multiple isosbestic points arise between the absorption spectra of HbO2 and Hb. At these isosbestic points, the light absorption coefficient of HbO2 in the emitted light is exactly equal to the light absorption coefficient of Hb. Therefore, the light absorption rate of HbO2 in the emitted light is also exactly equal to the light absorption rate of Hb. In some embodiments, these isosbestic points may include, but are not limited to, wavelengths of 390 nm, 422 nm, 452 nm, 500 nm, 530 nm, 546 nm, 570 nm, 584 nm, and 796 nm.

[0033] If the optical absorption coefficient in HbO2 and Hb of an emitted light having one specific optical wavelength from a plurality of specific optical wavelengths are equal, then the dicomponent concentration ratio of HbO2 and Hb in multiple spectroscopy samples does not affect the optical absorption coefficient of the emitted light in those samples. In other words, if the emission wavelength of the emitted light is one specific optical wavelength from a plurality of specific optical wavelengths, then the level of blood oxygen concentration does not affect the optical absorption coefficient of the emitted light in those samples. This eliminates the influence of the blood oxygen concentration's effect on the optical absorption coefficient from the detection light, thus reducing the accuracy of the measurement of biological data. Therefore, if the emission wavelength of the emitted light is one specific optical wavelength from a plurality of specific optical wavelengths, the emitted light has the same optical absorption coefficient in multiple spectroscopy samples with different blood oxygen concentrations. In some embodiments, the plurality of specific optical wavelengths may be wavelengths unaffected by multiple blood oxygen concentrations. In some embodiments, these isosbestic points may also include several isosbestic points clustered in an optical wavelength band between 260 nm and 344 nm. In other words, in the optical wavelength band between 260 nm and 344 nm, the emitted light has an optical absorption coefficient that shows very little difference across multiple measurement targets with different blood oxygen concentrations.

[0034] In certain wavelength ranges, the absorption spectrum of HbO2 is higher than that of Hb. In these specific wavelength ranges, the optical absorption coefficient of HbO2 in the emitted light is greater than that of Hb. In some embodiments, these specific wavelength ranges may include, but are not limited to, the wavelength ranges of 390 nm to 422 nm, 452 nm to 500 nm, 530 nm to 546 nm, 570 nm to 584 nm, and 796 nm to 1000 nm.

[0035] In some other wavelength bands, the absorption spectrum of HbO2 is lower than that of Hb. In some other wavelength bands, the optical absorption coefficient of HbO2 in the emitted light is smaller than that of Hb. In some embodiments, the other wavelength bands may include, but are not limited to, the 422nm–452nm, 500nm–530nm, 546nm–570nm, and 584nm–796nm wavelength bands.

[0036] When performing PPG measurement, the emitted light as the PPG signal is affected by the different light absorption coefficients of Hb and HbO2. Therefore, to reduce the change in the PPG signal due to changes in blood oxygen concentration, the emission wavelength of the emitted light can be selected from the blood oxygen concentration low-influence light wavelength band, i.e., from the isosbestic points of Hb and HbO2 in their absorption spectra, or from light wavelengths close to these isosbestic points. Since the number of these isosbestic points is greater than one, the blood oxygen concentration low-influence light wavelength band may include multiple sub-blood oxygen concentration low-influence light wavelength bands. Each sub-blood oxygen concentration low-influence light wavelength band includes one corresponding blood oxygen concentration no-influence wavelength and multiple blood oxygen concentration low-influence wavelengths that approximate the one corresponding blood oxygen concentration no-influence wavelength. In some embodiments, since these isosbestic points are these blood oxygen concentration no-influence wavelengths, the light wavelengths close to these isosbestic points may each be blood oxygen concentration low-influence wavelengths.

[0037] In some embodiments, the multiple low-impact wavelengths for blood oxygen concentration may include multiple approximate light wavelengths obtained by adding or subtracting a single wavelength offset value relative to these isosbestic points. In other words, in some embodiments, the multiple low-impact wavelengths for blood oxygen concentration may include multiple approximate light wavelengths obtained by adding or subtracting wavelength offset values ​​relative to these no-impact wavelengths for blood oxygen concentration. In some embodiments, the wavelength offset value may be any number between 1 and 5 nm. In some embodiments, the light wavelength offset value is 30 nm or less.

[0038] In some embodiments, a plurality of low-impact wavelengths for blood oxygen concentration may include a plurality of approximate light wavelengths in which the emitted light has a plurality of approximate absorption coefficients for a plurality of measurement targets with different blood oxygen concentrations. In other words, in some embodiments, a plurality of low-impact wavelengths for blood oxygen concentration may include a plurality of approximate light wavelengths that approximate these unimpactable wavelengths for blood oxygen concentration and have a plurality of approximate absorption coefficients. In some embodiments, if the difference in absorption coefficients between different light absorption coefficients for a plurality of measurement targets with different blood oxygen concentrations is below a deviation threshold, the emitted wavelength of the emitted light can be considered to belong to a plurality of approximate light wavelengths. In some embodiments, the difference in absorption coefficients may be expressed by the difference rate of light absorption coefficients for a plurality of measurement targets with different blood oxygen concentrations. In some embodiments, the difference in absorption coefficients may be expressed by the difference rate between the light absorption coefficient of HbO2 and the light absorption coefficient of Hb. In some embodiments, the deviation threshold may be 5% to 30%. Therefore, if the deviation threshold can be 10%, the emission wavelength belongs to a group of approximate light wavelengths, as long as the difference between the light absorption coefficient in HbO2 and the light absorption coefficient in Hb of the emitted light having the emission wavelength is 10% or less. In some embodiments, the difference between the light absorption coefficient of HbO2 and the light absorption coefficient of Hb can directly determine a group of approximate light wavelengths that exist around the wavelength in which blood oxygen concentration is ineffective.

[0039] For example, the emitted light has a first light absorptivity and a first light absorption coefficient in a first object having a first blood oxygen concentration, and a second light absorptivity and a second light absorption coefficient in a second object having a second blood oxygen concentration. The first and second blood oxygen concentrations are different. In some embodiments, if the difference between the first and second light absorptivity is below an absorption coefficient deviation threshold, the emitted wavelength belongs to a plurality of approximate light wavelengths. The absorption coefficient deviation threshold may be 3% to 10%. In another embodiment, if the difference between the first and second light absorption coefficients is below an absorption coefficient deviation threshold, the emitted wavelength belongs to a plurality of approximate light wavelengths. The absorption coefficient deviation threshold may be 5% to 30%. In another example, the emitted light has a third light absorptivity and a third light absorption coefficient in HbO2, and a fourth light absorptivity and a fourth light absorption coefficient in Hb. In some embodiments, if the difference between the third and fourth light absorption coefficients is below an absorption coefficient deviation threshold, the emission wavelength belongs to one of several approximate light wavelengths. In other embodiments, if the difference between the third and fourth light absorption coefficients is below an absorption coefficient deviation threshold, the emission wavelength belongs to one of several approximate light wavelengths.

[0040] When the optical module 120 measures various biological data by PPG, the optical module 120 may include a reflective optical module and a transmissive optical module. In some embodiments, when the optical module 120 is a reflective optical module, the reflective optical module has a relatively large alternating current (AC) signal for PPG signals with relatively short wavelengths, and the characteristic signal is clear. Also, the distance from the light source module 121 to the optical measurement module 122 of the reflective optical module is usually relatively short, which contributes to reducing the effects of motion artifacts. Therefore, the light source module 121 of the reflective optical module can select an emission wavelength with a relatively short wavelength in the low-impact light wavelength band of blood oxygen concentration changes. For example, in the wavelength band of 620 nm or less, a wavelength in the sub-low-impact light wavelength band of blood oxygen concentration changes surrounding the wavelength with no effect on blood oxygen concentration can be arbitrarily selected as the emission wavelength of the emitted light.

[0041] In some other embodiments, when the optical module 120 is a transmissive optical module, the emitted light may be selected as the emission wavelength because relatively short wavelengths are easily absorbed by multiple objects to be measured. This allows the emitted light to pass through multiple objects to be measured. For example, in the wavelength band of 750 nm or more, a wavelength in the sub-low blood oxygen concentration change wavelength band, which is around the blood oxygen concentration unaffected wavelength band, may be arbitrarily selected as the emission wavelength of the emitted light.

[0042] As shown in Figure 2, there is only one isosbestic point in the wavelength band above 750 nm, and this isosbestic point is at a light wavelength of 796 nm. In other words, the low-impact light wavelength band for blood oxygen concentration may consist of only one sub-low-impact light wavelength band for blood oxygen concentration, mainly at the light wavelength of 796 nm. In some embodiments, the difference between the optical absorption coefficient of HbO2 and the optical absorption coefficient of Hb is very small in the light wavelength band of 796 nm to 800 nm. Furthermore, in different measurement methods, the isosbestic point may be considered to be at a light wavelength of 800 nm after measurement. Therefore, the low-impact light wavelength band for blood oxygen concentration may include the light wavelength of 796 nm as the wavelength with no effect on blood oxygen concentration, and several approximate light wavelengths between 796 nm and 800 nm as the low-impact light wavelength band for blood oxygen concentration. In some embodiments, when the optical module 120 is a transmissive optical module, the effect of blood oxygen concentration is lowest when the low-impact light wavelength band for blood oxygen concentration is in the light wavelength band between 796 nm and 800 nm. Therefore, when measuring various biological data using PPG, deviations due to changes in blood oxygen concentration are minimized, and the transmission optical module achieves the highest accuracy in the optical wavelength band between 796nm and 800nm.

[0043] In some embodiments, when the optical module 120 is a reflective optical module, commercially available light-emitting diode (LED) light sources include green LEDs with emission wavelengths of 530 nm and 550 nm. Many of these light sources are used for heart rate measurement and have relatively good interference resistance, making them suitable as light source modules 121 for blood pressure measurement. In other embodiments, when the optical module 120 is a transmissive optical module, an infrared LED between 796 nm and 800 nm can be selected as the light source module 121. In some embodiments, in addition to LEDs, a laser light source can also be used as the light source module 121 to obtain a narrower and more accurate wavelength range. In some embodiments, the optical measurement module 122 is a photodiode (PD) that can generate an electrical signal through detected detection light to generate desired biological data. In some embodiments, the optical measurement module 122 may be other photodetectors.

[0044] When measuring biological data using the PPG characteristics with the optical module 120, the optical module 120 is installed on the object to be measured. In order to stably install the optical module 120 on the object to be measured and to perform stable measurements, the object to be measured may be compressed by the optical module 120. However, the pressure applied by compression may cause deformation of the PPG signal during biological data measurement.

[0045] Figures 3A and 3B are schematic diagrams showing the PPG signal waveforms, respectively, of the object being measured and its surroundings when no pressure is applied and when pressure is applied, according to one or more technologies of the present disclosure. According to Figure 3A, when no pressure is applied to the object being measured and its surroundings, each PPG waveform generated by the optical module 120 is stable and exhibits small differences. However, according to Figure 3B, when pressure is applied to the object being measured and its surroundings, each PPG waveform generated by the optical module 120 changes continuously, resulting in significant differences, and in severe cases, the PPG waveform even tends to gradually disappear. Therefore, when the optical biosignal measuring device 1 measures biological data, whether it is a transmission or reflection measurement, in addition to considering the emission wavelength of the emitted light, it is also necessary to consider how to reduce the pressure applied to the object being measured by the optical module 120. Therefore, the optical module 120 needs to reduce the pressure generated by the restraining and clamping forces on the object being measured, thereby maintaining a stable biosignal, reducing waveform contamination, deformation, and distortion that occur during measurement, and ensuring that the quality of the biosignal used for measuring biometric data is sufficiently accurate.

[0046] The optical module 120 may be housed in a low-pressure or no-pressure device. The low-pressure or no-pressure device may include additional device space for housing sensing modules such as a light source module 121 and an optical measurement module 122. In some embodiments, the low-pressure or no-pressure device may further include other detection modules such as a motion detector, pressure sensor, high-pass / low-pass filter, normalization waveform filter, and / or sampling rate modulator. The low-pressure or no-pressure device may also further include other sensing modules such as a temperature sensor and / or an electrocardiography (ECG) sensor.

[0047] In some embodiments, the low-pressure device or no-pressure device may include, but is not limited to, clip-type measuring devices and ring-type measuring devices. In some embodiments, the clip-type measuring device may include, but is not limited to, devices that perform measurement by clipping, such as fingertip measuring devices and ear measuring devices. In some embodiments, the ring-type measuring device may include, but is not limited to, devices that perform measurement by wrapping, such as ring-type measuring devices, wristband-type measuring devices, watch-type measuring devices, anklet-type measuring devices, and headband-type measuring devices. In some embodiments, the wristband-type measuring device is not limited to measuring the palm or back of the hand. In some embodiments, the ring-type measuring device is not limited to measuring the fingers or toes.

[0048] In some embodiments, a low-pressure or no-pressure device may be coupled to another measuring device by wire or wireless means to form a measuring device set. In some embodiments, the low-pressure or no-pressure device having the optical module 120 may be one of either a clip-type measuring device or a ring-type measuring device, and the other measuring device may be any other type of clip-type or ring-type measuring device having the optical module 120. For example, the measuring device set may include, but is not limited to, any combination of a fingertip measuring device and a wristband-type measuring device, a ring-type measuring device and a wristband-type measuring device, a fingertip measuring device and a watch-type measuring device, a ring-type measuring device and a watch-type measuring device, an ear measuring device and a headband-type measuring device, or a wristband-type measuring device and an anklet-type measuring device.

[0049] In some embodiments, both measuring devices in a measuring device set can measure biological data using the PPG measurement method, and the two measuring devices may use the same or different emission wavelengths. In some embodiments, the emission wavelengths used by the two measuring devices may be selected from the low-influence light wavelength band for changes in blood oxygen concentration. In some embodiments, if the emission wavelengths of the emitted light from the two measuring devices are not the same, the two measuring devices may simultaneously acquire biological data using the PPG measurement method, perform blood viscosity analysis using two sets of different biological data, and acquire blood viscosity data. In some embodiments, the two measuring devices may simultaneously acquire biological data using the PPG measurement method, perform blood flow velocity analysis using two sets of different biological data, and acquire blood flow velocity data.

[0050] In some other embodiments, one measuring device in the measuring device set may be a low-pressure or no-pressure device including the optical module 120, and the other measuring device may be a low-pressure or no-pressure device not including the optical module 120. In some further embodiments, one measuring device in the measuring device set may be a low-pressure or no-pressure device including the optical module 120, and the other measuring device may not be a low-pressure or no-pressure device. However, the other measuring device may still include other detection modules such as a motion detector, pressure sensor, high-pass / low-pass filter, normalization waveform filter, and / or sampling rate modulator, and / or other sensing modules such as a temperature sensor and / or ECG sensor.

[0051] In some embodiments, when a low-pressure or no-pressure device including an optical module 120 functions as a blood pressure measuring device, the low-pressure or no-pressure device can be calibrated during the initial measurement. At this time, cuff-type blood pressure measurement can be performed on the application site using an additional cuff-type device, and a PPG cutoff signal can be used as the signal for blood pressure measurement. Furthermore, after obtaining the first blood pressure value, subsequent PPG blood pressure measurements can be performed without requiring additional pressurization by air injection by evacuating the cuff to a no-pressure state and maintaining the low-pressure or no-pressure device in close contact with the application site.

[0052] Figure 4A is a perspective view of the optical biosignal measuring device 1 illustrated in Figure 1, relating to one or more technologies of the present disclosure, measuring an object 4. The optical biosignal measuring device 1 in Figure 4A includes a computing module 110, a clip-type measuring device 400, and a connection unit 401. The computing module 110 in Figure 4A is a wearable device and is coupled to the clip-type measuring device 400 via a wired connection unit 401. In some embodiments, the computing module 110 is not limited to a wearable device and may be a mobile phone, tablet computer, desktop computer, notebook computer, server, network computing system, or other electronic device. In some embodiments, the computing module 110 may be coupled to the clip-type measuring device 400 wirelessly, so that a physical connection unit 401 may not be present between the computing module 110 and the clip-type measuring device 400. Figure 4A shows an example of the optical biosignal measuring device 1. The optical biosignal measuring device 1 may include more or fewer elements than those shown, or may have a different configuration from the elements shown. Additional elements may be added or fewer elements may be used, as long as this does not deviate from the spirit of this disclosure.

[0053] Referring together to Figures 1 and 4A, the clip-type measuring device 400 may include an optical module 120. The clip-type measuring device 400 can be used to clamp a subject's object 4 and measure the object 4's biological data using the optical module 120 in the clip-type measuring device 400. In Figure 4, the object 4 may be one of the subject's fingertips. Therefore, the clip-type measuring device 400 is a fingertip measuring device for clamping a subject's fingertip, and can measure the fingertip using the optical module 120 in the clip-type measuring device 400 to acquire the subject's biological data.

[0054] In some embodiments, the optical biosignal measuring device 1 can be used to measure various biological data. These biological data may include at least one of the following: blood pressure data, blood oxygen concentration data, blood flow velocity data, blood viscosity data, and other biological data. In some embodiments, if the biological data is blood pressure data, the optical biosignal measuring device 1 can be an optical blood pressure measuring device. In some embodiments, the optical biosignal measuring device 1 can measure various biological data by photoplethysmography (PPG) measurement. Therefore, the optical biosignal measuring device 1 can also function as a PPG measuring device.

[0055] Figure 4B is a perspective view of the clip-type measuring device 400 illustrated in Figure 4A, relating to one or more of the technologies of the present disclosure. The clip-type measuring device 400 in Figure 4B may include an outer cover 410, an inner housing 420, an inner cover 430, an outer housing 440, and a connecting portion 450. Figure 4B shows an example of the clip-type measuring device 400. The clip-type measuring device 400 may include more or fewer elements than those shown, or may have a different configuration from those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of the present disclosure.

[0056] The outer cover 410 and the outer housing 440 can be coupled to form a first element assembly. The inner cover 430 and the inner housing 420 can be coupled to form a second element assembly. Referring together to Figures 4A and 4B, a housing space 402 for accommodating the object to be measured 4 is formed between the inner cover 430 and the inner housing 420.

[0057] The connecting portion 450 is used to connect one side of the outer cover 410 and the outer housing 440, thereby connecting the outer cover 410 and the outer housing 440 to each other and allowing them to slide relative to each other via the connecting portion 450. The space between the outer cover 410 and the outer housing 440 can be moved relative to each other via the connecting portion 450 in order to adjust the spatial dimensions of the housing space 402.

[0058] The inner housing 420 may further include an inner housing base 421 and elastic vane portions 422. The inner housing base 421 is coupled to the inner cover 430 to form a housing space 402. The first element assembly, consisting of the outer cover 410 and the outer housing 440, can cover the inner housing base 421 and the inner cover 430, but does not cover the elastic vane portions 422 that protrude outward from both sides of the inner housing base 421. If there is one elastic vane portion 422, the elastic vane portion 422 protrudes outward from one of the two sides of the inner housing base 421. If there are two or more elastic vane portions 422, each elastic vane portion 422 protrudes outward from a different side of the inner housing base 421. The elastic vane portion 422 protrudes outward from the inner housing base portion 421, then extends along the outer surface of the outer housing 440, covering the outer housing 440 in the reverse direction. In other words, the first element assembly consisting of the outer cover 410 and the outer housing 440 can cover the inner housing base portion 421 and the inner cover 430, but the inner housing 420 can also, conversely, cover the inner cover 430 and the outer housing 440 by the inner housing base portion 421 and the outwardly protruding elastic vane portion 422.

[0059] Figure 5 is an exploded view of a clip-type measuring device 400 illustrated in Figure 4B, relating to one or more of the technologies of the present disclosure, along the assembly direction Da. Referring together to Figures 4B and 5, the clip-type measuring device 400 may include an outer cover 410, an inner housing 420, an inner cover 430, an outer housing 440, a connecting portion 450, a first magnetic unit 460, a first optical signal module 470, and a second optical signal module 480. Figure 5 shows an example of the clip-type measuring device 400. The clip-type measuring device 400 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of the present disclosure.

[0060] The inner housing 420 may further include an inner housing base 421, an elastic vane portion 422, and a second magnetic unit 423. The inner housing 420 has an inner housing inner surface 4200, and the second magnetic unit 423 is provided on the inner housing inner surface 4200 of the inner housing 420. In some embodiments, the second magnetic unit 423 may be provided in a region of the inner housing inner surface 4200 that belongs to the elastic vane portion 422. In other words, the elastic vane portion 422 may have a vane inner surface (not shown), the vane inner surface is part of the inner housing inner surface 4200, and the second magnetic unit 423 is provided on the vane inner surface. In some embodiments, the elastic vane portion 422 protrudes outward from one of the two sides of the inner housing base 421, and the second magnetic unit 423 is provided on the other side of the elastic vane portion 422 that faces the inner housing base 421. In other words, one end of the elastic vane portion 422 is connected to the inner housing base portion 421, and the other end is provided with a second magnetic unit 423. The second magnetic unit 423 may be a strip-shaped magnetic unit that is attached to or mounted on the inner surface of the vane portion.

[0061] Referring together to Figures 4A, 4B, and 5, a storage space 402 for accommodating the object to be measured 4 is formed between the inner cover 430 and the inner housing 420. Furthermore, the inner housing base 421 of the outer housing 440 and the inner housing 420 enclose the storage space 402 and the inner cover 430 inside. In other words, the storage space 402 is included between the outer housing 440 and the inner housing 420. Also, the inner housing 420, with its inner housing base 421 and elastic vane portion 422, encloses the storage space 402, the inner cover 430, and the outer housing base 441 of the outer housing 440 inside. Therefore, the storage space 402 may be located between the inner housing base 421 and the elastic vane portion 422 of the inner housing 420.

[0062] The outer housing 440 has an outer housing outer surface 4400. The first magnetic unit 460 is provided on the outer housing outer surface 4400 of the outer housing 440. In some embodiments, the first magnetic unit 460 may be provided in a region of the outer housing outer surface 4400 that belongs to the outer housing base 441. In other words, the outer housing base 441 may have a base outer surface (not shown), which is part of the outer housing outer surface 4400, and the first magnetic unit 460 is provided on the base outer surface. The first magnetic unit 460 may be a sheet-like magnetic unit that is attached to or mounted on the base outer surface.

[0063] The outer housing 440 may further include a first sliding portion 442, and the outer cover 410 may further include a second sliding portion 411. The first sliding portion 442 and the second sliding portion 411 are slidably connected by a connecting portion 450. The first sliding portion 442 and the second sliding portion 411 can move relative to each other along the sliding direction to adjust the distance between the outer housing 440 and the outer cover 410. In some embodiments, the sliding direction is the same as the assembly direction Da. When the object to be measured 4 is inserted into the housing space 402, the sliding between the first sliding portion 442 and the second sliding portion 411 can achieve the effect of adjusting the distance between the outer housing 440 and the outer cover 410. The greater the distance between the outer housing 440 and the outer cover 410, the greater the space between the inner housing 420 covered by the outer cover 410 and the outer housing 440 and inner cover 430. In other words, the greater the distance between the outer housing 440 and the outer cover 410, the greater the distance between the inner housing 420 and the outer housing 440, and the greater the accommodation space 402 formed between the inner cover 430 and the inner housing 420. The smaller the distance between the outer housing 440 and the outer cover 410, the smaller the distance between the inner housing 420 and the outer housing 440, and the smaller the distance between the inner cover 430 and the inner housing 420. In other words, the smaller the distance between the outer housing 440 and the outer cover 410, the smaller the distance between the inner housing 420 and the outer housing 440, and the smaller the accommodation space 402 formed between the inner cover 430 and the inner housing 420. Therefore, the spatial dimensions of the accommodation space 402 also change according to the relative movement between the inner housing 420 and the outer housing 440.

[0064] On the other hand, when the object to be measured 4 is inserted into the housing space 402, the sliding between the first sliding part 442 and the second sliding part 411 can adjust the distance between the outer housing 440 and the outer cover 410. The greater the distance between the outer housing 440 and the outer cover 410, the more space the inner housing base 421 and the inner cover 430, which are covered between the outer housing 440 and the outer cover 410, can have to move away from each other. In other words, the greater the distance between the outer housing 440 and the outer cover 410, the more the housing space 402 formed between the inner cover 430 and the inner housing 420 can be expanded. The smaller the distance between the outer housing 440 and the outer cover 410, the more the inner housing base 421 and the inner cover 430, which are covered between the outer housing 440 and the outer cover 410, are pressed together and move closer to each other. In other words, the smaller the distance between the outer housing 440 and the outer cover 410, the smaller the accommodation space 402 formed between the inner cover 430 and the inner housing 420 can be. Therefore, the relative movement of the first sliding part 442 and the second sliding part 411 along the sliding direction not only adjusts the distance between the outer housing 440 and the outer cover 410, but also adjusts the spatial dimensions of the accommodation space 402.

[0065] In some embodiments, only one of the first magnetic unit 460 and the second magnetic unit 423 is a magnetic unit, while the other is a magnetic unit that is not magnetic but can be attracted by magnetism. For example, the first magnetic unit 460 is a magnetic unit that is not magnetic but can be attracted by magnetism, and the second magnetic unit 423 is a magnetic unit. Therefore, the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic attractive force. In some other embodiments, both the first magnetic unit 460 and the second magnetic unit 423 are magnetic units that are themselves magnetic. Because the polarity of the magnetic pole of the first magnetic unit 460 facing the second magnetic unit 423 is different from the polarity of the magnetic pole of the second magnetic unit 423 facing the first magnetic unit 460, the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic attractive force. In some other embodiments, both the first magnetic unit 460 and the second magnetic unit 423 are magnetic units themselves. Since the polarity of the magnetic pole of the first magnetic unit 460 facing the second magnetic unit 423 and the magnetic pole of the second magnetic unit 423 facing the first magnetic unit 460 are the same, the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic repulsive force.

[0066] In order to reliably generate one of the magnetic forces, either magnetic attraction or magnetic repulsion, one of the first magnetic unit 460 and the second magnetic unit 423 must be a magnetic unit, while the other may be a magnetic unit or a magnetic unit that is not magnetic but can be attracted by magnetism. A magnetic unit may include, but is not limited to, a magnetic material such as a permanent magnet or an electromagnet. A magnetic unit that is not magnetic but can be attracted by magnetism may include, but is not limited to, ferromagnetic metal materials such as iron, cobalt, and nickel, and their alloys, as well as mixtures of these metals or alloys with other substances.

[0067] In some embodiments, when the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic attraction force, the magnetic attraction force between the first magnetic unit 460 and the second magnetic unit 423 pulls the elastic vane portion 422 and pushes the outer housing 440 back, thereby bringing the outer housing 440 closer to the outer cover 410 and adjusting the spatial dimensions of the housing space 402 to match the dimensions of the object being measured 4. In these embodiments, the initial position of the elastic vane portion 422 is relatively far from the outer housing 440, or even directly away. When the outer housing 440 is pushed outwards and approaches the elastic vane portion 422, the elastic vane portion 422 is pulled in by the magnetic attraction force and displaced from its initial position, and the resulting elastic force causes the elastic vane portion 422 to move away from the outer housing 440 in the opposite direction, loosening the housing space 402. Therefore, the interaction between the magnetic attraction force and the elastic force can reduce the pressure that the inner cover 430 applies to the object being measured 4. Therefore, the clip-type measuring device 400 can reduce the pressure generated by the restraining and clamping forces of the optical module 120 on the object to be measured 4, thereby maintaining a stable biosignal, reducing waveform contamination, deformation, and distortion that occur during measurement, and ensuring that the quality of the biosignal is sufficiently accurate for use in measuring biological data.

[0068] The magnetic force between the first magnetic unit 460 and the second magnetic unit 423 can be a magnetic attraction force that brings the elastic vane portion 422 closer to the outer housing base 441. Therefore, when the object to be measured 4 is inserted into the housing space 402, the object to be measured 4 expands the housing space 402 according to the dimensions of the object, and pushes the outer housing base 441 toward the elastic vane portion 422, increasing the magnetic attraction force on the elastic vane portion 422. However, to avoid the magnetic attraction force excessively biasing the elastic vane portion 422 and pushing the outer housing 440 toward the outer cover 410, resulting in pressure on the inner cover 430 and generating unnecessary pressure on the object to be measured 4, the elastic vane portion 422, attracted by the magnetic attraction force, is displaced from its initial position, generating an elastic force that pulls the elastic vane portion 422 in the opposite direction. Therefore, this elastic force can reduce or avoid the pressure applied to the object to be measured 4 caused by the magnetic attraction force.

[0069] The elastic force controls the magnetic attractive force that the elastic vane portion 422 receives toward the outer housing base portion 441, preventing the magnetic attractive force from excessively pulling the elastic vane portion 422 inward and compressing it, thereby reducing the pressure applied to the object to be measured 4 due to inward compression by the magnetic attractive force. For example, when the object to be measured 4 is inserted into the housing space 402, the object to be measured 4 expands the housing space 402 according to the dimensions of the object. As a result, both the inner cover 430 and the outer housing 440 move away from the outer cover 410, and the first magnetic unit 460 also moves away from the outer cover 410 along with the outer housing 440. When the housing space 402 is expanded, the magnetic attractive force pulls the elastic vane portion 422, but the elastic force of the elastic vane portion 422 counteracts a portion of the magnetic attractive force in the opposite direction. This prevents the magnetic attraction force from excessively bringing the elastic vane portion 422 closer to the outer cover 410, causing the elastic vane portion 422 to compress the inner cover 430 and generate unnecessary pressure on the object being measured 4. Therefore, the elastic force of the elastic vane portion 422 can reduce or avoid the pressure applied to the object being measured 4 by the magnetic attraction force.

[0070] The magnetic attraction force changes depending on the distance between the first magnetic unit 460 and the second magnetic unit 423. The closer the first magnetic unit 460 and the second magnetic unit 423 are, the greater the magnetic attraction force. The further apart the first magnetic unit 460 and the second magnetic unit 423 are, the smaller the magnetic attraction force. Similarly, the elastic force also changes depending on the distance between the outer housing 440 and the outer cover 410. Since the initial position of the elastic vane portion 422 is relatively far from the outer housing 440, the closer the distance between the outer housing 440 and the outer cover 410 is, the greater the distance the elastic vane portion 422 is pulled and displaced from its initial position, and the greater the elastic force. The further apart the distance between the outer housing 440 and the outer cover 410 is, the smaller the distance the elastic vane portion 422 is displaced from its initial position, and the smaller the elastic force.

[0071] Before the object to be measured 4 is inserted into the containment space 402 (i.e., when the magnetic attraction force and the elastic force are in long-term equilibrium), the magnetic attraction force and the elastic force are equal, or there may be a slight difference due to other forces. After the object to be measured 4 is gradually inserted into the containment space 402, the distance from the inner housing base 421 of the outer housing 440 increases, so the distance between the outer housing 440 and the elastic vane portion 422 decreases, and the magnetic attraction force increases. As a result, the elastic vane portion 422 approaches the outer housing 440 and generates pressure on the object to be measured 4. At this time, the elastic force also increases as the elastic vane portion 422 is attracted, resisting the magnetic attraction force and mitigating its effect. In other words, after the object to be measured 4 is inserted into the containment space 402, different magnitudes of magnetic attraction and elastic force are generated depending on the distance between the first magnetic unit 460 and the second magnetic unit 423, and the pressure that the elastic force and magnetic attraction force may exert on the object to be measured 4 can be adjusted in a manner similar to magnetic levitation. Therefore, the clip-type measuring device 400 can be a magnetic levitation measuring device and is coupled to the calculation unit 112. The calculation unit 112 then calculates various biological data, such as blood pressure data, based on the measurement signals acquired by the magnetic levitation measuring device.

[0072] In some other embodiments, when the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic repulsion force, the magnetic repulsion force between the first magnetic unit 460 and the second magnetic unit 423 biases the outer housing 440 to spread the elastic vane portion 422, and consequently loosens the housing space 402. In these other embodiments, the initial state of the elastic vane portion 422 is relatively close to the outer housing 440. When the outer housing 440 spreads the elastic vane portion 422 due to the magnetic repulsion force, the elastic force generated by the elastic vane portion 422 can push the outer housing 440 back. Therefore, the magnetic repulsion force also indirectly brings the outer housing 440 closer to the outer cover 410, thereby conforming the spatial dimensions of the housing space 402 to the dimensions of the object being measured 4. Thus, the interaction between the magnetic repulsion force and the elastic force can reduce the pressure that the inner cover 430 applies to the object being measured 4. Therefore, the clip-type measuring device 400 can reduce the pressure generated by the restraining and clamping forces applied by the optical module 120 to the object 4, thereby maintaining a stable biosignal, reducing waveform contamination, deformation, and distortion that occur during measurement, and ensuring that the quality of the biosignal is sufficiently accurate for use in measuring biological data.

[0073] The elastic force may be a minute elastic force that brings the elastic blade portion 422 closer to the outer housing base portion 441. Therefore, when the object to be measured 4 is inserted into the housing space 402, the object to be measured 4 expands the housing space 402 according to the dimensions of the object, and consequently pushes the elastic blade portion 422 outward. However, the outwardly pushed elastic blade portion 422 generates an elastic force that pushes the outer housing 440 back, preventing the housing space 402 between the outer housing 440 and the inner housing 420 from expanding excessively. Thus, the elastic force of the elastic blade portion 422 brings the outer housing 440 closer to the outer cover 410, and adjusts the spatial dimensions of the housing space 402 to match the dimensions of the object to be measured 4.

[0074] The magnetic repulsive force controls the elastic force that the elastic vane portion 422 applies to the outer housing base 441, preventing the elastic force from excessively compressing the object being measured 4 and reducing the pressure the elastic force applies to the object being measured 4. For example, when the object being measured 4 is inserted into the housing space 402, the object being measured 4 expands the housing space 402 according to the dimensions of the object. As a result, both the inner cover 430 and the outer housing 440 move away from the outer cover 410, and the first magnetic unit 460 also moves away from the outer cover 410 along with the outer housing 440. As the housing space 402 is expanded, the elastic force of the elastic vane portion 422 pushes the outer housing 440 back slightly, but the magnetic repulsive force between the first magnetic unit 460 and the second magnetic unit 423 counteracts a portion of the elastic force in the opposite direction. This prevents the elastic force of the elastic vane portion 422 from excessively bringing the outer housing 440 too close to the outer cover 410, and the elastic force from excessively compressing the inner cover 430, thereby preventing the generation of unnecessary pressure on the object being measured 4. Therefore, the magnetic repulsion force can reduce the pressure that the elastic force applies to the object being measured 4.

[0075] The magnetic repulsive force changes depending on the distance between the first magnetic unit 460 and the second magnetic unit 423. The closer the first magnetic unit 460 and the second magnetic unit 423 are, the greater the magnetic repulsive force. The further apart the first magnetic unit 460 and the second magnetic unit 423 are, the smaller the magnetic repulsive force. Similarly, the elastic force also changes depending on the distance between the outer housing 440 and the outer cover 410. Since the initial state of the elastic vane portion 422 is relatively close to the outer housing 440, when the distance between the outer housing 440 and the outer cover 410 is small, the elastic vane portion 422 is not pushed relatively far outward, and the smaller the distance displaced from the inner housing base 421, the smaller the elastic force. When the distance between the outer housing 440 and the outer cover 410 is large, the elastic vane portion 422 is pushed far outward by the outer housing 440, and the larger the distance displaced from the inner housing base 421, the larger the elastic force.

[0076] Before the object to be measured 4 is inserted into the containment space 402 (i.e., when the magnetic repulsion force and elastic force are in long-term equilibrium), the magnetic repulsion force and elastic force are equal, or there may be a slight difference due to other forces. After the object to be measured 4 is gradually inserted into the containment space 402, the distance the elastic vane portion 422 is displaced from the inner housing base portion 421 increases, so the elastic force increases, and as a result, the inner cover 430 generates pressure on the object to be measured 4. At this time, the magnetic repulsion force also increases due to the movement of the outer housing 440, resisting the elastic force and reducing the pressure. In other words, after the object to be measured 4 is inserted into the containment space 402, different magnitudes of magnetic repulsion and elastic forces are generated depending on the distance between the first magnetic unit 460 and the second magnetic unit 423, and the pressure that the magnetic repulsion force and elastic force may exert on the object to be measured 4 can be adjusted in a manner such as magnetic levitation. Therefore, the clip-type measuring device 400 can be a magnetic levitation measuring device and is coupled to the calculation unit 112. As a result, the calculation unit 112 calculates various biological data, such as blood pressure data, based on the measurement signals acquired by the magnetic levitation measuring device.

[0077] In some embodiments, the clip-type measuring device 400 can measure various biological data from the object to be measured 4 by the PPG measurement method. Therefore, the clip-type measuring device 400 can function as a PPG measuring device. The outer housing 440 may further include a first optical signal module housing 4410 located at the base 441 of the outer housing. The first optical signal module housing 4410 is coupled to the outer housing 440 and may be used to house a first optical signal module 470 for measuring the object to be measured 4. The inner housing base 421 may further include a second optical signal module housing 4210. The second optical signal module housing 4210 may be used to house a second optical signal module 480 for measuring the object to be measured 4.

[0078] Referring together to Figures 1, 4A, and 5, one of the first optical signal module 470 and the second optical signal module 480 can function as the light source module 121 in the optical module 120 and can therefore be used to emit light. The emitted light has an emission wavelength, which is selected based on the effect of blood oxygen concentration on the light absorption coefficient. The emission wavelength is selected from the low blood oxygen concentration-affected light wavelength band, in which the light absorption coefficient is hardly affected by blood oxygen concentration. The other of the first optical signal module 470 and the second optical signal module 480 can function as the light measurement module 122 in the optical module 120 and can therefore be used to receive detection light after measuring the object 4 with the emitted light. Referring further to Figure 4B, since the first optical signal module 470 and the second optical signal module 480 are located above and below the housing space 402, respectively, the optical module 120 consisting of the first optical signal module 470 and the second optical signal module 480 can be a transmissive optical module. The emitted light is emitted from one of the first optical signal module 470 and the second optical signal module 480, passes through the object to be measured 4 located in the housing space 402, and is then received by the other of the first optical signal module 470 and the second optical signal module 480, completing the measurement of the optical module 120. In some embodiments, the first optical signal module 470 may be a light source module 121, and the second optical signal module 480 may be an optical measurement module 122. In other embodiments, the first optical signal module 470 may be an optical measurement module 122, and the second optical signal module 480 may be a light source module 121.

[0079] In some other embodiments, one of the first optical signal module 470 and the second optical signal module 480 may simultaneously include the light source module 121 and the optical measurement module 122 in the optical module 120. In other words, the clip-type measuring device 400 may not include the other of the first optical signal module 470 and the second optical signal module 480. In some embodiments, the clip-type measuring device 400 may include only the first optical signal module 470 as the light source module 121 and the optical measurement module 122, and the clip-type measuring device 400 may not include the second optical signal module 480. In some other embodiments, the clip-type measuring device 400 may include only the second optical signal module 480 as the light source module 121 and the optical measurement module 122, and the clip-type measuring device 400 may not include the first optical signal module 470. Since the clip-type measuring device 400 may include only one of the optical signal modules, the first optical signal module 470 and the second optical signal module 480, when emitted light is emitted from the optical signal module, it is reflected by the object to be measured 4 located in the containment space 402, and then received again by the optical signal module, completing the measurement of the optical module 120. Therefore, the single optical signal module in the clip-type measuring device 400 functions as a reflective optical module and can simultaneously function as a light source module 121 and an optical measurement module 122.

[0080] In some embodiments, if the clip-type measuring device 400 has a first optical signal module 470, the inner cover 430 may include a central hole 431 in the inner cover. When the first optical signal module 470 functions as a light source module 121, the emitted light can pass through the central hole 431 in the inner cover and irradiate the object to be measured 4. When the first optical signal module 470 functions as an optical measuring module 122, the detection light can pass through the central hole 431 in the inner cover and be received by the first optical signal module 470. In some embodiments, if the clip-type measuring device 400 has a second optical signal module 480, the center of the second optical signal module housing 4210 may include a central hole (not shown) in the inner housing. When the second optical signal module 480 functions as a light source module 121, the emitted light can pass through the central hole in the inner housing and irradiate the object to be measured 4. When the second optical signal module 480 functions as an optical measuring module 122, the detection light can pass through the central hole in the inner housing and be received by the second optical signal module 480.

[0081] Figures 6A to 6C are perspective views illustrating the outer cover 410, outer housing 440, and connecting portion 450 illustrated in Figure 5, respectively, relating to one or more technologies of the present disclosure. Figures 6A to 6C show examples of the outer cover 410, outer housing 440, and connecting portion 450, respectively. The outer cover 410, outer housing 440, and connecting portion 450 may each contain more or fewer elements than those shown, or may have a different configuration from those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of the present disclosure.

[0082] The first sliding portion 442 of the outer housing 440 may further include a first sliding shaft 4421 and a first slide rail 4422, the second sliding portion 411 of the outer cover 410 may further include a connecting hole 4111, a second slide rail 4112, and a plurality of first fixing portions 4113, and the connecting portion 450 may further include a connecting shaft 451 and a plurality of second fixing portions 452. In order to fix the connecting portion 450 and the outer cover 410 to each other, the plurality of first fixing portions 4113 are each coupled to the corresponding of the plurality of second fixing portions 452, so that there is no relative movement between the connecting portion 450 and the outer cover 410.

[0083] The first sliding shaft 4421 of the outer housing 440 and the second slide rail 4112 of the outer cover 410 are slidably coupled, thereby allowing the first sliding shaft 4421 to slide along the second slide rail 4112 in a first sliding direction. The connecting shaft 451 not only passes through the connecting hole 4111 of the outer cover 410, but is also slidably coupled to the first slide rail 4422 of the outer housing 440, thereby allowing the connecting shaft 451 to slide along the first slide rail 4422 in a second sliding direction. In some embodiments, the first sliding direction of the first sliding shaft 4421 in the second slide rail 4112 and the second sliding direction of the connecting shaft 451 in the first slide rail 4422 are opposite to each other. Referring together to Figures 5 and 6A to 6C, both the first and second sliding directions may be parallel to the assembly direction Da.

[0084] The sliding motion between the first sliding part 442 and the second sliding part 411 allows the clip-type measuring device 400 to conform to the dimensions of the object to be measured 4. If the object to be measured 4 is a fingertip, the dimensions of the object may be the circumference of the finger (e.g., the width and / or thickness of the fingertip).

[0085] Figure 7A is a top view of the clip-type measuring device 400 illustrated in Figure 4B, relating to one or more of the technologies of this disclosure. Figure 7B is a cross-sectional view of the clip-type measuring device 400 cut along the line C1-C1 in Figure 7A, relating to one or more of the technologies of this disclosure. Figure 7C is an enlarged view of region E1 illustrated in Figure 7B, relating to one or more of the technologies of this disclosure.

[0086] Referring together to Figures 4A, 7A, and 7B, the external structure of the clip-type measuring device 400 may consist mainly of a first element assembly comprising an outer cover 410 and an outer housing 440. The internal structure of the clip-type measuring device 400 may consist mainly of a second element assembly comprising an inner cover 430 and an inner housing 420. The inner housing base 421 of the inner housing 420 is coupled to the inner cover 430, forming a housing space 402 between them. The elastic vane portion 422 of the inner housing 420 protrudes from the first element assembly and can cover the outer housing 440 in the opposite direction. Since the first optical signal module 470 may be located between the inner cover 430 and the outer housing 440, and the second optical signal module 480 may be located between the outer cover 410 and the inner housing 420, the first optical signal module 470 and the second optical signal module 480 may be located on opposite sides of the housing space 402.

[0087] The second element assembly formed by the inner cover 430 and the inner housing 420 may have an opening 4021 and a joint 4022. The opening 4021 may be the entrance to the housing space 402, and the object to be measured 4 is inserted into the housing space 402 through the opening 4021. The joint 4022 may be the closing opening of the housing space 402. After the object to be measured 4 is inserted into the housing space 402 through the opening 4021, the object to be measured 4 can only enter up to the joint 4022 and cannot enter any further inside.

[0088] The inner housing 420 has an inner housing surface 4200. Referring together to Figures 7A and 7C, the portion of the inner housing surface 4200 at the inner housing base 421 of the inner housing 420 is cut along the line C1-C1 and shown in Figure 7C as a first central diagonal line 4024 along the front-rear direction Df. The inner cover 430 and the inner housing 420 also have a joint plane 4023 at the joint 4022. There is a first inclination angle θ between the first central diagonal line 4024 and the normal to the joint plane 4023. In other words, the inner housing surface 4200 has a first inclination angle θ along the front-rear direction Df from the opening 4021 to the joint 4022. In some embodiments, the first inclination angle θ may be between 3° and 7°. In some embodiments, the first inclination angle θ may be 5°. Because of the presence of the first inclination angle θ, the opening cross-sectional area A1 of the opening 4021 in the housing space 402 is larger than the joint cross-sectional area A2 of the joint 4022. Therefore, the presence of the first inclination angle θ can increase the degree of contact between the inner surface 4200 of the inner housing base 421 and the object to be measured 4.

[0089] In some embodiments, the inner surface 4300 of the inner cover is shown as a second central diagonal line 4025 along the front-rear direction Df in Figure 7C after the clip-type measuring device 400 has been cut along the C1-C1 line. There may also be a second inclination angle between the second central diagonal line 4025 and the normal to the joint plane 4023. In other words, the inner surface 4300 of the inner cover may have a second inclination angle along the front-rear direction Df from the opening 4021 to the joint 4022. In some embodiments, the second inclination angle may be 3° to 7°. In some embodiments, the second inclination angle may be 5°. Because of the presence of the second inclination angle, the opening cross-sectional area A1 of the opening 4021 in the accommodating space 402 is larger than the joint cross-sectional area A2 of the joint 4022. Therefore, the presence of the second inclination angle can increase the degree of contact between the inner surface 4300 of the inner cover 430 and the object to be measured 4.

[0090] The portion of the inner housing surface 4200 of the inner housing 420 at the inner housing base 421 includes the inner housing friction portion. The inner housing surface 4200 can be divided into the inner housing surface 4200 of the inner housing base 421 and the inner housing surface 4200 of the elastic vane portion 422. The inner housing surface 4200 of the inner housing base 421 is the surface that forms the housing space 402. In other words, the inner housing friction portion may be located in the portion of the inner housing surface 4200 adjacent to the housing space 402. In some embodiments, only a portion of the inner housing surface 4200 of the inner housing base 421 is the inner housing friction portion. Therefore, the coefficient of friction of the inner housing friction portion is higher than the coefficient of friction of the other portion of the inner housing surface 4200 of the inner housing base 421. In some other embodiments, the entire inner housing surface 4200 of the inner housing base 421 is the inner housing friction portion. Therefore, the entire inner housing surface 4200 of the inner housing base 421 has a high coefficient of friction. In some embodiments, if only a portion of the inner housing surface 4200 of the inner housing base 421 is the inner housing friction area, a difference in the coefficient of friction can be created by applying a high-friction coefficient material to the inner housing surface 4200 of the inner housing base 421. In other embodiments, if the entire inner housing surface 4200 of the inner housing base 421 is the inner housing friction area, a difference in the coefficient of friction can be created by directly selecting a high-friction coefficient material to manufacture the inner housing base 421, or by applying a high-friction coefficient material to the entire inner housing surface 4200 of the inner housing base 421.

[0091] The inner surface 4300 of the inner cover includes an inner cover friction area. The inner surface 4300 is the surface that forms the accommodation space 402. In other words, the inner cover friction area may be located on the inner surface 4300 adjacent to the accommodation space 402. In some embodiments, only a portion of the inner surface 4300 of the inner cover 430 is the inner cover friction area. Therefore, the coefficient of friction of the inner cover friction area is higher than that of the other portion of the inner surface 4300. In some other embodiments, the entire inner surface 4300 is the inner cover friction area. Therefore, the entire inner surface 4300 has a high coefficient of friction. In some embodiments, when only a portion of the inner surface 4300 is the inner cover friction area, a difference in the coefficient of friction can be created by applying a high coefficient of friction material to the inner surface 4300. In some other embodiments, if the entire inner surface 4300 of the inner cover is the inner cover friction area, a high coefficient of friction material can be directly selected to manufacture the inner cover 430, or a high coefficient of friction material can be applied to the entire inner surface 4300 of the inner cover to create a difference in the coefficient of friction.

[0092] The clip-type measuring device 400 needs to reduce the pressure generated by the restraining and clamping forces on the object to be measured 4 in order to maintain a stable biological signal. However, if the pressure generated by the restraining and clamping forces is reduced, the clip-type measuring device 400 may fall off at any time due to the movement of the object to be measured 4. Therefore, the clip-type measuring device 400 may include at least one of an inner cover friction part and an inner housing friction part. A material with a relatively high coefficient of friction can be used to generate a relatively large frictional force between the inner housing surface 4200 and / or inner cover surface 4300 of the inner housing base 421 and the object to be measured 4, thereby ensuring that the object to be measured 4 remains stably within the containment space 402 and achieving an anti-slip effect. Therefore, even if the pressure generated by the restraining and clamping forces is reduced by a magnetic force, the inner cover friction part and the inner housing friction part can prevent the clip-type measuring device 400 from falling off due to the movement of the object to be measured 4.

[0093] Figure 7D is a cross-sectional view of the clip-type measuring device 400 illustrated in Figure 7B, relating to one or more technologies of the present disclosure, after the inner cover 430 and inner housing 420 have moved relative to each other along the assembly direction Da.

[0094] Referring to Figures 4A, 7C, and 7D together, when the object to be measured 4 is inserted into the housing space 402, a first inclination angle θ exists, so the direction of the force acting on the inner surface 4200 of the inner housing and the inner surface 4300 of the inner cover becomes relatively uniform. Therefore, when the spatial dimensions of the housing space 402 are expanded due to the dimensions of the object to be measured 4, the first sliding part 442 and the second sliding part 411 are used as a method of expanding the spatial dimensions, and the outer cover 410 and the outer housing 440 are moved relative to each other along the assembly direction Da. Furthermore, referring to Figures 6A to 6C together, the first sliding shaft 4421 is movable downward along the assembly direction Da relative to the outer cover 410 in the second slide rail 4112. In other words, the first sliding shaft 4421 is slidable along the first sliding direction in the second slide rail 4112. Furthermore, the connecting shaft 451, together with the connecting hole 4111, is movable upward along the assembly direction Da relative to the outer housing 440 on the first slide rail 4422. In other words, the connecting shaft 451, together with the connecting hole 4111, is slidable along the second sliding direction on the first slide rail 4422.

[0095] Since the expansion of spatial dimensions is primarily caused by the relative movement of the outer cover 410 and the outer housing 440 along the assembly direction Da, the opening cross-sectional area A1 of the opening 4021 and the joint cross-sectional area A2 of the joint 4022 in the accommodating space 402 also change according to the amount of relative movement between the outer cover 410 and the outer housing 440. In some embodiments, a first inclination angle θ exists, so even if relative movement occurs between the outer cover 410 and the outer housing 440, the opening cross-sectional area A1 of the opening 4021 remains larger than the joint cross-sectional area A2 of the joint 4022. In some embodiments, the first inclination angle θ cannot necessarily fit the contour of all objects to be measured 4. Therefore, the expansion of spatial dimensions is not necessarily achieved solely by the amount of relative movement between the outer cover 410 and the outer housing 440 along the assembly direction Da. In other words, when the object to be measured 4 is inserted into the clip-type measuring device 400, slight rotation may occur between the outer cover 410 and the outer housing 440, resulting in a larger enlargement of the opening 4021 than the enlargement of the joint 4022. In some embodiments, the space between the first sliding part 442 and the second sliding part 411 may include the first sliding shaft 4421 and the connecting shaft 451, thereby reducing the opportunity for rotation to occur between the outer cover 410 and the outer housing 440. This prevents the opening 4021 from enlarging excessively, resulting in a reduced contact area between the inner housing base 4200 and the inner cover surface 4300 of the inner housing and the object to be measured 4, and consequently, insufficient friction that could lead to loosening or detachment.

[0096] Figure 8A is a cross-sectional view of a clip-type measuring device 400 relating to one or more technologies of the present disclosure, cut along the line C2-C2 in Figure 7A. Figure 8B is a schematic view of an enlarged view of the housing space 402 of the clip-type measuring device 400 illustrated in Figure 8A relating to one or more technologies of the present disclosure.

[0097] Referring together to Figures 4A, 8A, and 8B, Figure 8A shows the state before the object to be measured 4 is inserted into the clip-type measuring device 400. At this time, the housing space 402 formed by the inner housing surface 4200 of the inner housing base 422 and the inner cover surface 4300 of the inner cover 430 is in its initial state, and the elastic vane portion 422 is in its initial position. Figure 8B shows the state after the object to be measured 4 has been inserted into the clip-type measuring device 400. At this time, the housing space 402 formed by the inner housing surface 4200 of the inner housing base 422 and the inner cover surface 4300 of the inner cover 430 is in an expanded state, and the elastic vane portion 422 is in the elastic force application position. The elastic force application position changes according to the dimensions of the object to be measured 4.

[0098] When the housing space 402 expands, the outer cover 410 and the outer housing 440 move relative to each other along the assembly direction Da, and the inner housing 420 and the inner cover 430 also move relative to each other along the assembly direction Da. However, to facilitate the following explanation, we will describe an example where the positions of the outer cover 410 and the inner housing base 421 of the inner housing 420 are fixed, and the inner cover 430 and the outer housing 440 move downward along the assembly direction Da.

[0099] In some embodiments, the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic attractive force. In one embodiment, if the first magnetic unit 460 is still affected by the magnetic attractive force of the second magnetic unit 423 in the initial position where the elastic vane portion 422 is located, the initial position where the elastic vane portion 422 is located is slightly displaced from the first non-elastic force position. At this time, the torque generated by the magnetic attractive force on the inner housing boundary 424 between the elastic vane portion 422 and the inner housing base portion 421 is JPEG2026521793000002.jpg1123 Furthermore, since the elastic blade portion 422 in its initial position is in a first equilibrium state, the elastic force torque generated by the slight displacement of the elastic blade portion 422 from the first non-elastic force position due to the influence of magnetic attraction force is JPEG2026521793000003.jpg1122 Torque JPEG2026521793000004.jpg1123 This becomes equal to . In one embodiment, when the initial position of the elastic vane portion 422 is sufficiently far from the first magnetic unit 460 and the second magnetic unit 423 is not affected by the magnetic attractive force, the initial position of the elastic vane portion 422 is the first no-elastic force position. At this time, both the magnetic attractive force and the elastic force torque are 0. The first no-elastic force position refers to the location where the elastic vane portion 422 is located when it is in a stress-free state and is not affected by the magnetic attractive force.

[0100] When the elastic vane portion 422 is in the position where elastic force is applied, the inner cover 430 moves downward due to the influence of the object to be measured 4 being inserted into the clip-type measuring device 400, so the outer housing 440 comes into close proximity to the elastic vane portion 422. As a result, the magnetic attractive force between the first magnetic unit 460 and the second magnetic unit 423 increases, and consequently the torque of the magnetic attractive force generated by the elastic vane portion 422 against the inner housing boundary 424 JPEG2026521793000005.jpg1324 It increases to this extent. However, since the elastic vane portion 422 at the elastic force application position is ultimately still in a second equilibrium state, the torque of the magnetic attraction force JPEG2026521793000006.jpg1425 In order to maintain equilibrium, the elastic force is also further displaced by the elastic wing portion 422 from the first non-elastic position. JPEG2026521793000007.jpg1526 It increases to that extent.

[0101] In some other embodiments, the magnetic force between the first magnetic unit 460 and the second magnetic unit 423 is a magnetic repulsive force. When the elastic vane portion 422 is in its initial position, the first magnetic unit 460 located at the end of the elastic vane portion 422 still maintains a magnetic repulsive force with the second magnetic unit 423, so the elastic vane portion 422 is also affected by the magnetic repulsive force and displaces slightly from the second non-elastic position. The second non-elastic position refers to the location where the elastic vane portion 422 is in a stress-free state without being affected by the magnetic repulsive force. At this time, the torque generated by the magnetic repulsive force against the inner housing boundary 424 between the elastic vane portion 422 and the inner housing base 421 is JPEG2026521793000008.jpg1321 Furthermore, since the elastic blade portion 422 in its initial position is in a first equilibrium state, the elastic torque generated by the slight displacement of the elastic blade portion 422 from the non-elastic position due to the influence of magnetic repulsion force is JPEG2026521793000009.jpg1423 Also JPEG2026521793000010.jpg1321 This is equal to:

[0102] In some embodiments, when the elastic vane portion 422 is in the position where elastic force is applied, the inner cover 430 moves downward due to the insertion of the object to be measured 4 into the clip-type measuring device 400, so the outer housing 440 pushes the elastic vane portion 422 together, increasing the elastic force that the elastic vane portion 422 presses against the outer housing 440, and consequently the torque that the elastic vane portion 422 generates against the inner housing boundary 424. JPEG2026521793000011.jpg1423 It increases to [a certain value]. However, since the elastic vane portion 422 at the elastic force application position is ultimately still in a second equilibrium state, the torque of the elastic force JPEG2026521793000012.jpg1423 In order to maintain equilibrium, magnetic repulsion also JPEG2026521793000013.jpg1422 It increases to that extent.

[0103] In some embodiments, the second magnetic unit 423 is provided at the end of the elastic vane portion 422, thereby maximizing the distance between the second magnetic unit 423 and the inner housing boundary 424. As a result, the torque effect of the magnetic force can also be maximized, and the restraining and clamping forces on the object to be measured 4 can be mutually adjusted between the magnetic force and the elastic force. In some embodiments, the first magnetic unit 460 may be a sheet-like magnetic material, so when the elastic vane portion 422 is displaced from its initial position along with the second magnetic unit 423, the first magnetic unit 460 can still face the second magnetic unit 423, thereby maintaining the magnetic force.

[0104] In some embodiments, a first cavity 403 exists between the outer cover 410 and the inner housing base 421 of the inner housing 420. To increase the buffering force between the inner housing base 421 and the object to be measured 4, the inner housing base 421 may softly cover and maintain a tight seal over the object to be measured 4, thereby reducing the restraining force on the object to be measured 4, and thus the first cavity 403 may be filled with an elastic material. In some embodiments, a second cavity 404 exists between the outer housing 440 and the inner cover 430. To increase the buffering force between the inner cover 430 and the object to be measured 4, the inner cover 430 may softly cover and maintain a tight seal over the object to be measured 4, thereby reducing the restraining force on the object to be measured 4, and thus the second cavity 404 may be filled with an elastic material. In some embodiments, both the first cavity 403 and the second cavity 404 may be filled with an elastic material. In some embodiments, the same material may be used to fill both the first cavity 403 and the second cavity 404. In some embodiments, the first cavity 403 and the second cavity 404 may be filled with different materials according to the requirements of each different contact surface with the object to be measured 4. In some embodiments, the filling material may be a silicone gel, memory foam, gel, rubber, or the like.

[0105] Figure 9 is a perspective view of another clip-type measuring device 500 relating to one or more technologies of the present disclosure. Referring together to Figures 1, 4A, 4B, and 9, the clip-type measuring device 500 in Figure 9 is similar to the clip-type measuring device 400 in Figure 4B and may similarly include an outer cover 510, an inner housing 520, an inner cover 530, an outer housing 540, a connecting portion 550, and a first magnetic unit 560. The clip-type measuring device 500 also has a housing space 502 for housing the object to be measured 4.

[0106] Although the first and second optical signal modules are not shown in Figure 9, the clip-type measuring device 500, like the clip-type measuring device 400, includes at least one of the first and second optical signal modules. If the clip-type measuring device 500 includes only one optical signal module, the optical signal module may function as a reflective optical module and simultaneously as a light source module 121 and an optical measurement module 122. Figure 9 shows an example of the clip-type measuring device 500. The clip-type measuring device 500 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used without departing from the spirit of the disclosure.

[0107] The main difference between the clip-type measuring device 500 in Figure 9 and the clip-type measuring device 400 in Figure 4B is that the outer shapes of the inner housing 520 and the inner housing 420 are different. The inner housing 420 has an inner housing base 421 and an elastic vane portion 422, and the inner housing 520 similarly has an inner housing base 521 and an elastic vane portion 522. The inner housing base 521 and the inner housing base 421 are identical, but the outer shape of the elastic vane portion 522 is different from that of the elastic vane portion 422. When the elastic vane portion 422 is in its initial position, the entire elastic vane portion 422 extends along the outer surface 4400 of the outer housing 440. In other words, the entire elastic vane portion 422 extends along the first magnetic unit 460 that is in close contact with the outer surface 4400 of the outer housing. In contrast, when the elastic vane portion 522 is in its initial position, the elastic vane portion 522 extends outward, and only the end portion of the elastic vane portion 522, to which the second magnetic unit 523 is provided, is in close proximity to the outer surface of the outer housing 540. In other words, the elastic vane portion 522 does not extend along the first magnetic unit 560 that is in close contact with the outer surface of the outer housing, and an elastic space 505 exists between it and the outer surface of the outer housing.

[0108] Referring also to Figure 8C, when the object to be measured 4 is inserted into the clip-type measuring device 400, the entire elastic vane portion 422 extends along the first magnetic unit 460 that is in close contact with the outer surface 4400 of the outer housing. Therefore, the elastic vane portion 422 can only be pushed to the left and right by the outer housing 440. At this time, the force received by the elastic vane portion 422 is concentrated at the inner housing boundary 424, and this area is prone to damage due to stress concentration. When the object to be measured 4 is inserted into the clip-type measuring device 500, an elastic space 505 exists between the elastic vane portion 522 and the outer surface of the outer housing. Therefore, the elastic vane portion 522 is not only pushed to the left and right by the outer housing 540, but also pushed downwards. At this time, the force received by the elastic vane portion 522 is applied to the inner housing boundary 524 and distributed to the curved portion of the elastic vane portion 522 itself, making damage due to stress concentration relatively less likely.

[0109] Figure 10A is a perspective view of a ring-type measuring device 600 relating to one or more of the technologies of this disclosure. Figure 10B is a schematic diagram of the ring-type measuring device 600 illustrated in Figure 10A measuring an object 6 relating to one or more of the technologies of this disclosure. The ring-type measuring device 600 may include a ring element 610 and an optical signal module 620. Figure 10A shows an example of the ring-type measuring device 600. The ring-type measuring device 600 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of this disclosure.

[0110] Referring together to Figures 1, 10A, and 10B, the ring-type measuring device 600 can be connected to the calculation module 110 by a wired or wireless method. For example, it can be connected to the calculation module 110 by a connection unit 401 as shown in Figure 4A, or it can be connected directly to the calculation module 110 by a wireless module. The optical signal module 620 can function as an optical module 120 and as an optical device used to emit light having an emission wavelength, receive detection light after measurement using the emitted light, and transmit the measurement result to the calculation module 110.

[0111] The ring-type measuring device 600 may be wrapped around the object to be measured 6 of a subject and used to measure the biological data of the object to be measured 6 by the optical signal module 620 of the ring-type measuring device 600. In Figure 10B, the object to be measured 6 may be the phalanges or knuckles of the subject's hand, and therefore the ring-type measuring device 600 may be a ring-type measuring device to be wrapped around the subject's phalanges or knuckles, and the optical signal module 620 of the ring-type measuring device 600 measures the phalanges or knuckles to acquire the subject's biological data. In some other embodiments, the ring-type measuring device 600 may be a device that performs measurements by being wrapped around the limbs or head, such as a wristband-type measuring device, a watch-type measuring device, an anklet-type measuring device, or a headband-type measuring device.

[0112] In some embodiments, the ring-type measuring device 600 can be used to measure various biological data. These biological data may include at least one of the following: blood pressure data, blood oxygen saturation data, blood flow velocity data, blood viscosity data, and other biological data. In some embodiments, when the biological data is blood pressure data, the optical biosignal measuring device 1 having the ring-type measuring device 600 can function as an optical blood pressure measuring device. In some embodiments, the ring-type measuring device 600 can measure various biological data by photoplethysmography (PPG) measurement. Therefore, the optical biosignal measuring device 1 having the ring-type measuring device 600 can also function as a PPG measuring device. The ring-type measuring device 600 can reduce the restraining and tightening force on the phalanges or joints of the fingers by softly covering the first, second, first, second, or third phalanges of the fingers, while maintaining the stability and integrity of the PPG biosignal.

[0113] A dwelling space 602 is located in the center of the ring element 610. The dwelling space 602 is used to insert the object to be measured 6 and to measure various biological data of the object 6. In some embodiments, the ring element 610 may be a C-shaped ring surrounding the dwelling space 602. In other words, the C-shaped ring may form a ring opening 601. The ring opening 601 has an opening central angle. The opening central angle may be 0° to 60°. In some embodiments, the opening central angle may be 20° to 40°. The larger the object dimensions of the object to be measured 6, the more the ring element 610 will be expanded and have a larger central angle. The smaller the object dimensions of the object to be measured 6, the more the ring element 610 will be compressed and have a smaller central angle. Therefore, the ring opening 601 helps the ring element 610 to fit the object dimensions of different objects to be measured 6. In some other embodiments, the ring element 610 may be a circular ring surrounding the dwelling space 602. In other words, the circular ring does not need to have a ring opening 601.

[0114] The ring element 610 can be made of a plastic material. In some embodiments, the ring element 610 can be made of a thermoplastic material. Therefore, when it is necessary to use the ring-type measuring device 600, the ring element 610 can be slightly heated to temporarily make it plastic, and while it is plastic, the ring element 610 can be wrapped around the object to be measured 6 to measure the biological data. After the measurement is complete, the ring-type measuring device 600 can be directly removed, and it is determined whether it needs to be heated again for the next measurement. In some other embodiments, the ring element 610 can be made of a plastic material. Therefore, the ring element 610 does not require additional heating during use, and the ring element 610 can be directly molded to fit the dimensions of the object to be measured 6. After molding the ring element 610, it exhibits an arc-shaped curved surface and can adhere closely to the finger without additional tightening force.

[0115] The optical signal module 620 may be used to emit light. The emitted light has an emission wavelength, which is selected based on the effect of blood oxygen concentration on the light absorption coefficient. The emission wavelength is selected from a low blood oxygen concentration-influenced light wavelength band in which the light absorption coefficient is hardly affected by blood oxygen concentration. The optical signal module 620 shown in Figures 10A and 10B includes three optical elements 621, but the number of optical elements 621 may be one or more. In some embodiments, the number of optical elements 621 may be any number between 1 and 6, or more.

[0116] In some embodiments, if the optical element 621 in the optical signal module 620 is located on only one side of the ring-type measuring device 600, the optical element 621 of the optical signal module 620 may simultaneously include the light source module 121 and the optical measurement module 122 of the optical module 120. Therefore, after the emitted light is emitted from the optical element 621 of the optical signal module 620, it is reflected by the object to be measured 6 located in the housing space 602, and received again by the optical element 621, completing the measurement of the optical module 120. Thus, since the measurement of biological data is performed only by the optical signal module 620 on one side of the ring-type measuring device 600, the optical signal module 620 can function as a reflective optical module and simultaneously as the light source module 121 and the optical measurement module 122.

[0117] In some other embodiments, if the optical elements 621 in the optical signal module 620 can be distributed on both sides of the ring-type measuring device 600, then different optical elements 621 in the optical signal module 620 can each function as a light source module 121 or an optical measuring module 122 in the optical module 120. For example, the ring-type measuring device 600 may have a pair of optical signal modules 620 on each side, where the optical elements 621 in one optical signal module 620 can function as a light source module 121, and the optical elements 621 in the other optical signal module 620 can function as an optical measuring module 122. Thus, the emitted light is emitted from the optical elements 621 in one optical signal module 620, passes through the object to be measured 6 located in the housing space 602, and is then received by the optical elements 621 in the other optical signal module 620, completing the measurement of the optical module 120.

[0118] Figure 11A is a schematic diagram showing the unfolded state of the ring element 610 illustrated in Figure 10A, relating to one or more of the technologies of this disclosure. Figure 11B is a perspective view showing the ring state of the ring element 610 illustrated in Figure 10A, relating to one or more of the technologies of this disclosure. Figure 11C is a perspective view of the optical signal module 620 illustrated in Figure 10A, relating to one or more of the technologies of this disclosure. Figures 11A to 11C show examples of the ring element 610 and the optical signal module 620, respectively. The ring element 610 and the optical signal module 620 may include more or fewer elements than those shown, or may have a different configuration from those shown. Additional elements may be added or fewer elements may be used, as long as it does not deviate from the spirit of this disclosure.

[0119] In some embodiments, the ring element 610 can be flattened and unfolded. To accommodate the dimensions of different objects, ring elements 610 of different lengths can be manufactured to meet the needs of different users. Also, since the ring element 610 can be a C-shaped ring, the size of the aperture center angle can also be used to accommodate different object dimensions. In some embodiments, if the length of the ring element 610 is too long compared to the dimensions of the object, the ring element 610 can be shaped to resemble the number "6", and the optical signal module 620 can be positioned within the ring-shaped area to ensure that the biological data can be measured accurately.

[0120] The ring element 610 may further include a ring base 611 and a ring frame 612. The ring base 611 is coupled to the ring frame 612, and an optical signal module housing 6120 is formed in the center of the ring frame 612. The optical signal module housing 6120 is used to house optical signal modules 620. The number of optical signal module housings 6120 may be determined according to the number of optical signal modules 620 in the ring-type measuring device 600. The housing dimensions of the optical signal module housings 6120 may also be determined according to the dimensions of the optical signal modules 620 in the ring-type measuring device 600.

[0121] The optical signal module 620 can be joined to the ring element 610 by various joining methods such as adhesive, snap-fit, or engagement. In some embodiments, as shown in Figures 11B and 11C, the optical signal module housing 6120 may be a ring through-hole. The optical signal module 620 may include an outer wall 622, an inner wall 623, and an intermediate recess 624. The intermediate recess 624 is formed by the outer wall 622 and the inner wall 623. Therefore, the side cross-section of the optical signal module 620 is "I" shaped, and the optical signal module 620 can be fitted into the ring frame 612 of the ring element 610 by the intermediate recess 624, filling the ring through-hole. In some other embodiments, the optical signal module housing 6120 may be a ring recess, and the optical signal module 620 can be attached to the ring element 610 by methods such as adhesive, bonding, or engagement, filling the ring recess.

[0122] Figure 12 is a schematic diagram of the materials of the ring element 610 illustrated in Figure 10A relating to one or more of the technologies of this disclosure. Figure 12 shows an example of the ring element 610. The ring element 610 may include more or fewer elements than those shown, or may have a different configuration from those shown. Additional elements may be added or fewer elements may be used without departing from the spirit of this disclosure.

[0123] In some embodiments, the ring element 610 may be a single-layer flexible element. A single-layer flexible element may be made of a moldable material. In some embodiments, the ring element 610 may be a multilayer flexible element. A multilayer flexible element can achieve a variety of effects depending on the properties of different materials. Taking Figure 12 as an example, the ring element 610 may include a ventilation layer 6101, an intermediate layer 6102, and a skin contact layer 6103. The ventilation layer 6101 may be made of a breathable material to avoid phenomena such as stuffiness during wear. The ventilation layer 6101 may also be made of a waterproof material, which not only maintains dryness but also prevents the ring-shaped measuring device 600 from being damaged by moisture or water. The intermediate layer 6102 may be made of a highly plastic mesh structure material, which has elasticity and rigidity itself and can also maintain a breathable effect. When the ring-type measuring device 600 is attached to the object to be measured 6, the skin contact layer 6103 comes into direct contact with the object to be measured 6. Therefore, in order to avoid excessive friction between the skin contact layer 6103 and the object to be measured 6, the skin contact layer 6103 needs to have a non-slip skin contact surface.

[0124] Figure 13 is an enlarged view of area E2 illustrated in Figure 10B relating to one or more technologies of this disclosure.

[0125] Referring together to Figures 1 and 13, in some embodiments, the optical element 621 has a convex design and may have multiple convexities. Since the surface of the object to be measured 6 is usually flexible skin, when the surface of the object to be measured 6 comes into contact with the optical element 621, the optical element 621, which functions as a light source module 121 or an optical measurement module 122, adheres more closely to the surface of the object to be measured 6 by slightly indenting the flexible skin corresponding to the multiple convexities, thereby reducing the possibility of air bubbles forming between the optical element 621 and the surface of the object to be measured 6. In some embodiments, the light source module 121 or the optical measurement module 122 may be directly mounted on the multiple convexities. In some embodiments, an anti-slip effect can be created between the multiple convexities and the surface of the object to be measured 6. In some embodiments, the shape of the multiple convexities can be arbitrary. In some embodiments, the shapes of the multiple convexities may be identical, different from each other, or partially identical and partially different. In some embodiments, the shapes of the multiple protrusions may include, but are not limited to, circles, squares, triangles, and polygons, as long as the multiple protrusions are higher than the surface of the adjacent surrounding optical signal module 620. In other embodiments, the optical element 621 may also be provided in multiple element spaces 6211 in the optical signal module 620. The multiple element spaces 6211 may correspond to multiple protrusions, or they may be in positions where no multiple protrusions are provided.

[0126] Figure 14A is a perspective view of another ring-type measuring device 700 relating to one or more of the technologies of this disclosure. Figure 14B is a top perspective view of the ring-type measuring device 700 illustrated in Figure 14A relating to one or more of the technologies of this disclosure. The ring-type measuring device 700 may include an outer ring frame 710 and an inner ring frame 720. Figures 14A and 14B show an example of the ring-type measuring device 700. The ring-type measuring device 700 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of this disclosure.

[0127] Referring together to Figures 1, 14A, and 14B, the ring-type measuring device 700 can be connected to the calculation module 110 by a wired or wireless method. For example, it can be connected to the calculation module 110 by a connection unit 401 as shown in Figure 4A, or it can be connected directly to the calculation module 110 by a wireless module.

[0128] The ring-type measuring device 700 is used to wrap around the object to be measured by a subject, and the ring-type measuring device 700 can measure the biological data of the object to be measured. The object to be measured may be the phalanges or knuckles of the subject's hand, and the ring-type measuring device 700 may be a ring-type measuring device to wrap around the subject's phalanges or knuckles in order to measure the phalanges or knuckles and acquire the subject's biological data. In some other embodiments, the ring-type measuring device 700 may be a device that performs measurements by wrapping around the limbs or head, such as a wristband-type measuring device, a watch-type measuring device, an anklet-type measuring device, or a headband-type measuring device.

[0129] In some embodiments, the ring-type measuring device 700 can be used to measure various biological data. These biological data may include at least one of blood pressure data, blood oxygen saturation data, blood flow velocity data, blood viscosity data, and other biological data. In some embodiments, when the biological data is blood pressure data, the optical biosignal measuring device 1 having the ring-type measuring device 700 can function as an optical blood pressure measuring device. In some embodiments, the ring-type measuring device 700 can measure various biological data by photoplethysmography (PPG) measurement. Therefore, the optical biosignal measuring device 1 having the ring-type measuring device 700 can also function as a PPG measuring device. The ring-type measuring device 700 may cover the first, second, first, second, or third phalanges of the fingers by an expandable covering ring formed by the ring inner frame 720, in order to reduce the restraining and tightening force on the phalanges or joints and to maintain the stability and integrity of the PPG biosignal.

[0130] The ring-type measuring device 700 may include at least one ring outer frame 710 and a plurality of ring inner frames 720. At least one ring outer frame 710 covers the plurality of ring inner frames 720. Each of the plurality of ring inner frames 720 has an inner frame surface 7200, and the plurality of ring inner frames 720 surround each other in a ring shape to form a containment space 702. The containment space 702 is used to contain the object to be measured by a subject and to measure the subject's biological data. The plurality of inner frame surfaces 7200 of the plurality of ring inner frames 720 are surfaces surrounding the containment space 702. In other words, when the object to be measured is inserted into the ring-type measuring device 700, the plurality of inner frame surfaces 7200 become the surfaces that come into contact with the ring-type measuring device 700 and the object to be measured. Therefore, the plurality of inner frame surfaces 7200 may have flexible and skin-friendly contact surfaces.

[0131] The number of at least one ring outer frame 710 can be one or more. If the number of at least one ring outer frame 710 is one, the ring outer frame 710 is a fixed-dimension ring-shaped outer frame. Therefore, although multiple ring inner frames 720 have a certain range of expansion and contraction, the ring outer frames 710 can still have different dimensions and can be adapted to objects of different dimensions. If the number of at least one ring outer frame 710 is multiple, the dimensions of the multiple ring outer frames 710 may be completely identical, completely different, or partially identical and partially different. Since multiple ring outer frames 710 can be combined to form one complete ring outer frame, the ring-shaped measuring device 700 can have different dimensions and can be adapted to objects of different dimensions.

[0132] In some embodiments, if there is one outer ring frame 710, multiple inner ring frames 720 can be housed within a single outer ring frame 710, forming a housing space 702. In other embodiments, if there are multiple outer ring frames 710, the number of inner ring frames 720 may correspond to the number of outer ring frames 710. For example, the number of inner ring frames 720 may be equal to the number of outer ring frames 710, or it may be a multiple of the number of outer ring frames 710. In yet another embodiment, if there are multiple outer ring frames 710, the number of inner ring frames 720 may be independent of the number of outer ring frames 710. For example, the number of outer ring frames 710 may be 3, and the number of inner ring frames 720 may be 2.

[0133] In some embodiments, at least one of the multiple ring inner frames 720 may have an optical signal module housing for accommodating an optical signal module, so some ring inner frames 720 may not have an optical signal module housing. In other embodiments, all of the ring inner frames 720 may each have an optical signal module housing for accommodating an optical signal module. In some embodiments, at least one of the multiple optical signal module housings may accommodate an optical signal module, so some optical signal module housings may not accommodate an optical signal module and may be empty. In other embodiments, all of the optical signal module housings may each accommodate an optical signal module.

[0134] The optical signal module housed in the optical signal module housing can function as an optical module 120, emitting light having an emission wavelength, receiving detection light after measurement using the emitted light, and functioning as an optical device used to transmit the measurement results to the calculation module 110. In some embodiments, the emission wavelength is selected based on the effect of blood oxygen concentration on the light absorption coefficient. The emission wavelength is selected from a low blood oxygen concentration-influenced light wavelength band in which the light absorption coefficient is hardly affected by blood oxygen concentration.

[0135] In some embodiments, when only one optical signal module is housed in one optical signal module housing, the optical signal module may simultaneously include a light source module 121 and an optical measurement module 122 in the optical module 120. Therefore, after the emitted light is emitted from the optical signal module, it is reflected by the object to be measured located in the housing space 702 and returns to the optical signal module, completing the measurement of the optical module 120. Thus, the measurement of biological data is performed by only one optical signal module in the ring-type measuring device 700. The optical signal module can function as a reflective optical module and simultaneously function as a light source module 121 and an optical measurement module 122.

[0136] In some other embodiments, if the corresponding optical signal module housings on both sides each have an optical signal module, the different optical signal modules can each function as a light source module 121 or an optical measurement module 122 in the optical module 120. For example, a ring-type measuring device 700 may have a pair of optical signal modules on each side, of which one optical signal module may function as a light source module 121 and the other optical signal module may function as an optical measurement module 122. Thus, the emitted light is emitted from one optical signal module, passes through the object to be measured located in the housing space 702, is received by the other optical signal module, and the measurement of the optical module 120 is completed.

[0137] Figure 15A is a top perspective view of the ring-type measuring device 700 illustrated in Figure 14A, relating to one or more of the technologies of this disclosure. Figure 15B is a cross-sectional view of the ring-type measuring device 700 cut along the line C3-C3 in Figure 15A, relating to one or more of the technologies of this disclosure. Figure 15B shows an example of the ring-type measuring device 700. The ring-type measuring device 700 may include more or fewer elements than those shown, or may have a different configuration than those shown. Additional elements may be added or fewer elements may be used, without departing from the spirit of this disclosure.

[0138] Referring together to Figures 1, 14A, and 15B, the outer ring frame 710 includes a plurality of inner ring frames 721 to 724, and each of the plurality of inner ring frames 721 to 724 may have a corresponding inner inner surface from a plurality of inner inner surfaces 7210 to 7240. When the object to be measured is inserted into the ring-type measuring device 700, the plurality of inner inner surfaces 7210 to 7240 come into contact with the object to be measured. Therefore, the plurality of inner inner surfaces 7210 to 7240 may have flexible and skin-friendly contact surfaces.

[0139] Between the outer ring frame 710 and the multiple inner ring frames 721-724 are multiple elastic elements 731-734. These multiple elastic elements 731-734 create a spatially variable structure with slight elasticity and are used to adapt to different dimensions of the object being measured. In some embodiments, the multiple elastic elements 731-734 may be springs, elastic bands, elastic pieces, or other elastic materials to achieve the effect of adhering closely to the object being measured. In some embodiments, each of the multiple inner ring frames 721-724 may be coupled to a corresponding elastic element among the multiple elastic elements 731-734. Therefore, the number of multiple elastic elements may be the same as the number of inner ring frames. In other embodiments, if the number of multiple elastic elements is greater than the number of inner ring frames, each of the multiple inner ring frames may be coupled to at least one corresponding elastic element among the multiple elastic elements. For example, each of the multiple inner ring frames 721-724 may be coupled to two or more elastic elements.

[0140] The ring frame 710 may have a plurality of frame fixing parts 711 to 714. Each of the frame fixing parts 711 to 714 may be coupled to a corresponding elastic element among the plurality of elastic elements 731 to 734 in order to fix the plurality of elastic elements 731 to 734 to the ring frame 710.

[0141] Multiple ring inner frames 721-724 may have multiple inner frame fixing parts 7211-7241 and 7212-7242. Each of the multiple inner frame fixing parts 7211-7241 and 7212-7242 may be coupled to a corresponding elastic element among the multiple elastic elements 731-734 in order to fix the multiple elastic elements 731-734 to the multiple ring inner frames 721-724.

[0142] In some embodiments, the multiple elastic elements 731-734 may all be V-shaped elastic elements. Each V-shaped elastic element has one tip and two ends. The tip of each of the multiple elastic elements 731-734 may be coupled to a corresponding outer frame fixing part among the outer frame fixing parts 711-714. In addition, the right end of each of the multiple elastic elements 731-734 may be coupled to a corresponding inner frame fixing part among the inner frame fixing parts 7211-7241, and the left end of each of the multiple elastic elements 731-734 may be coupled to a corresponding inner frame fixing part among the inner frame fixing parts 7212-7242. Therefore, the multiple elastic elements 731-734 are coupled and fixed to the ring outer frame 710 by their respective tips, and simultaneously coupled to a corresponding ring inner frame among the multiple ring inner frames 721-724 by their respective two ends, and can withstand pressure from the multiple ring inner frames 721-724. In other words, when the object to be measured is inserted into the ring-shaped measuring device 700, the multiple inner ring frames 721-724 are pressed by the object to be measured and move closer to the outer ring frame 710. At this time, the multiple elastic elements 731-734 generate a spatially variable structure with slight elasticity due to their elastic force, and adapt to the different dimensions of the object to be measured.

[0143] In some other embodiments, the multiple elastic elements may all be I-shaped elastic elements. Each I-shaped elastic element has two ends. One end of each of the multiple elastic elements may be coupled to a corresponding outer frame fixing part of the multiple outer frame fixing parts, and the other end of each of the multiple elastic elements may be coupled to a corresponding inner frame fixing part of the multiple inner frame fixing parts. Thus, the multiple elastic elements are coupled by their two ends to the outer ring frame and a corresponding inner ring frame, respectively, and can withstand pressure from the multiple inner ring frames. In other words, when the object to be measured is inserted into the ring-type measuring device, the multiple inner ring frames are pressed by the object to be measured and move closer to the outer ring frame. At this time, the multiple elastic elements generate a spatially variable structure with slight elasticity due to their elastic force, which can adapt to different object dimensions of the object to be measured.

[0144] In some embodiments, the extension and retraction range of the ring-type measuring device is approximately 1 mm to 6 mm. In some embodiments, the extension and retraction range of the ring-type measuring device is approximately 2 mm. In some embodiments, the extension and retraction direction of the ring-type measuring device can be in multiple directions to increase the extension and retraction space. In some embodiments, the number of extension and retraction directions can be multiple, such as 2, 3, 4, or 5. In some embodiments, the number of extension and retraction directions of the ring-type measuring device 700 can be four.

[0145] In some embodiments, the expansion and contraction direction of the ring-type measuring device 700 can be determined by the number of ring inner frames 721 to 724. In other embodiments, the expansion and contraction direction of the ring-type measuring device 700 can be determined by the number of elastic elements 731 to 734.

[0146] The embodiments shown and described above are merely examples. Many details are often found in the art, and therefore many such details are not shown or described. Many of the features and advantages of this disclosure have been described above, along with details of its structure and function, but this disclosure is illustrative and subject to detailed modifications. Therefore, it should be understood that the embodiments described above can be modified within the scope of the claims.

Claims

1. Outer casing and An inner housing coupled to the outer housing and movable relative to the outer housing, wherein a storage space for accommodating an object to be measured is included between the outer housing and the inner housing, and the dimensions of the storage space change according to the relative movement between the outer housing and the inner housing, A first magnetic unit provided on the outer surface of the outer housing of the outer housing, A second magnetic unit provided on the inner surface of the inner housing of the inner housing, The optical signal module is coupled to the outer housing and configured to measure the object to be measured, A magnetic force exists between the first magnetic unit and the second magnetic unit, and this magnetic force causes the spatial dimensions of the containment space to conform to the dimensions of the object being measured. Photoelectric pulse wave recording (PPG) measuring device.

2. The optical signal module is used to receive detection light after measuring the object to be measured with emitted light, or to emit the emitted light. The emitted light has an emission wavelength, which is selected based on the effect of blood oxygen concentration on light absorption. The PPG measuring device according to claim 1.

3. The emission wavelength is selected from a low-influence light wavelength band where the light absorption rate is not affected by the blood oxygen concentration. The PPG measuring device according to claim 2.

4. An outer cover which is coupled to the outer housing to form a first element assembly, The present invention further includes an inner cover which is coupled to the inner housing to form a second element assembly and which forms the housing space between itself and the inner housing. The PPG measuring device according to claim 1.

5. The aforementioned inner housing is An inner housing base that is coupled to the inner cover, wherein the housing space is formed by the inner housing base and the inner cover, and the first element assembly covers the inner housing base and the inner cover, The elastic vane portion further includes: an elastic vane portion that protrudes outward from one of the two sides of the base of the inner housing and extends along the outer surface of the outer housing to cover the outer housing, wherein the second magnetic unit is provided on the inner surface of the vane portion of the elastic vane portion, and by the elastic force of the elastic vane portion and the magnetic force, the outer housing approaches the outer cover so that the spatial dimensions of the housing space are matched to the dimensions of the object to be measured, and the interaction between the magnetic force and the elastic force reduces the pressure that the inner cover applies to the object to be measured. The PPG measuring device according to claim 4.

6. The outer housing includes a first sliding portion, The outer cover includes a second sliding part, The first sliding part and the second sliding part are slidably connected, allowing relative movement between the first sliding part and the second sliding part to adjust the spatial dimensions of the housing space. The PPG measuring device according to claim 4.

7. A connecting shaft connected to the outer cover, wherein the first sliding portion includes a first sliding shaft and a first slide rail, the second sliding portion includes a second slide rail, the first sliding shaft and the second slide rail are slidably coupled so that the first sliding shaft can slide along the second slide rail in a first sliding direction, and the connecting shaft is slidably coupled to the first slide rail so that it can slide along the first slide rail in a second sliding direction. The PPG measuring device according to claim 6.

8. The second element assembly has an opening and a joint, The inner surface of the inner housing has an inclination angle along the front-to-back direction from the opening to the joint, and as a result, the opening cross-sectional area of ​​the opening in the housing space is larger than the joint cross-sectional area of ​​the joint. The PPG measuring device according to claim 4.

9. The aforementioned joint has a joint surface, The central part of the inner surface of the inner housing has a central diagonal line along the front-to-back direction. The angle of inclination formed by the central diagonal line and the normal to the joint surface is 3 to 7 degrees. The PPG measuring device according to claim 8.

10. The inner housing friction portion is located on the inner surface of the inner housing adjacent to the housing space, The friction portion of the inner housing has a higher coefficient of friction than other parts of the inner surface of the inner housing. The PPG measuring device according to claim 1.

11. A magnetic levitation measuring device which is a photoelectric volume pulse wave recording PPG measuring device according to any one of claims 1 to 10, Includes a calculation module coupled to the magnetic levitation measuring device, which calculates blood pressure data based on the measurement signal acquired by the magnetic levitation measuring device. Optical blood pressure measuring device.

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