CN109363656B

CN109363656B - Health monitoring device and wearable equipment

Info

Publication number: CN109363656B
Application number: CN201810938545.5A
Authority: CN
Inventors: 梁世春
Original assignee: DO Technology Co ltd
Current assignee: DO Technology Co ltd
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2023-07-11
Anticipated expiration: 2038-08-17
Also published as: CN109363656A

Abstract

The embodiment of the invention discloses a health monitoring device and wearable equipment. The health detection device comprises a shell and a physiological parameter monitoring module arranged on the shell; the physiological parameter monitoring module comprises a carrier plate, and a light source and a light detector which are arranged on the same side of the carrier plate; the shell comprises a main body, a first light-transmitting piece and a second light-transmitting piece; the main body comprises a bottom and a window area formed on the bottom; the bottom covers one side of the carrier plate provided with the light source and the light detector; the first light-transmitting piece and the second light-transmitting piece are arranged in the window area to form a light-emitting window and a sensing window, and the light-emitting window and the sensing window are respectively in one-to-one correspondence with the light source and the light detector; the window area is provided with a light blocking part; the light blocking part surrounds the first light transmitting piece and the second light transmitting piece; the health monitoring device further comprises a shading piece, wherein the shading piece is positioned between the carrier plate and the bottom and surrounds the light source; the shading piece is respectively abutted against the carrier plate and the light blocking part, so that light emitted by the light source is emitted only from the light emitting window.

Description

Health monitoring device and wearable equipment

Technical Field

The invention relates to the technical field of health monitoring, in particular to a health monitoring device and wearable equipment.

Background

Health monitoring has become a standard feature for wearable devices (e.g., smart bracelets, smart watches). Health monitoring is mainly used to monitor or detect physiological parameters such as the heart rate, pulse, etc. of a user. The wearable device is commonly used for health monitoring by a photoelectric measurement method. The reflection of light by the human skin, bones, meat, fat, etc. remains constant. While the volume of blood in the skin changes in a pulsatile manner under the action of the heart. The maximum light absorption by the peripheral blood volume is also greatest when the heart is contracted, the smaller the reflection of light, and conversely, the greater the reflection of light when the heart is dilated. Thus, the reflection of light by the human body fluctuates, and the frequency of the fluctuation is the pulse, which is consistent with the heart rate of the human body. Thus, human physiological information is indirectly detected by monitoring the reflection of visible light (e.g., green, red) in human tissue.

Existing smart bracelets generally include a main body and a wristband that secures the main body to the wrist. The host typically includes a housing, a light source, a light detector, and a processing chip. The light source, the light detector and the processing chip are mounted to the housing. The shell comprises a back surface which is contacted with the wrist, and a light transmission part is arranged on the back surface. The light emitted from the light source is emitted to the wrist through the light-transmitting portion. The light detector receives the light reflected back through the wrist and converts it into a corresponding electrical signal. The processing chip calculates corresponding physiological parameter values according to the electric signals. However, in the existing smart band, the light emitted by the emitting element may partially enter the light detector before exiting the housing, resulting in distortion of the amount of light monitored by the light detector, thereby affecting the accuracy of the monitoring.

Disclosure of Invention

The embodiment of the invention provides a high-precision health monitoring device and wearable equipment.

In one aspect, the present invention provides a health monitoring device.

A health monitoring device comprises a shell and a physiological parameter monitoring module arranged on the shell; the physiological parameter monitoring module comprises a carrier plate, and a light source and a light detector which are arranged on the same side of the carrier plate; the shell comprises a main body, a first light-transmitting piece and a second light-transmitting piece; the main body comprises a bottom and a window area formed on the bottom; the bottom covers one side of the carrier plate, provided with the light source and the light detector; the light source and the light detector are respectively arranged in the window area, and the light source and the light detector are respectively arranged in the window area; the window area is provided with a light blocking part which surrounds the light emitting window and the sensing window respectively; the health monitoring device further comprises a shading piece, wherein the shading piece is positioned between the carrier plate and the bottom and surrounds the light source; the shading piece is respectively abutted against the carrier plate and the light blocking part, so that light emitted by the light source is emitted only from the light emitting window.

Preferably, the bottom comprises an inner bottom surface facing the carrier plate and a back surface facing away from the carrier plate, and the window area protrudes from the back surface.

Preferably, the window area includes an outer surface and an inner surface disposed opposite to each other, the inner surface faces the carrier plate, and the outer surface of the window area is a plane.

Preferably, the light shielding part protrudes from the inner surface to form a first frame; the first frame surrounds the luminous window and abuts against the shading piece.

Preferably, the light shielding member further surrounds the photo sensor; the light blocking part also protrudes from the inner surface to form a second frame; the second frame surrounds the sensing window and abuts against the shading piece.

Preferably, the first light-transmitting member and the second light-transmitting member each include a substrate and an extension portion disposed on the substrate, the extension portion extends from the periphery of the end face of the substrate to the direction of the carrier plate, the extension portion and the substrate together form a groove, and the end face of the substrate faces the carrier plate.

Preferably, the first light-transmitting member and the second light-transmitting member further include injection-molded portions, respectively, extending from the extension portions in a direction parallel to the end face of the substrate.

Preferably, the light shielding member is pressed by the carrier plate and the light shielding portion to deform.

Preferably, the size of the shade matches the size of the base.

In another aspect, the invention provides a wearable device comprising the above health monitoring apparatus and a tie for wearing the health monitoring apparatus on an external object.

According to the health monitoring device provided by the embodiment of the invention, the light emitted by the light source and the light sensor are emitted only from the light emitting window under the action of the light blocking part and the light shielding part, so that the emitted light of the light source is prevented from directly entering the light sensor, and the detection accuracy is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a wearable device according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a health monitoring device according to a first embodiment of the present invention.

Fig. 3 is a partial enlarged view of a health monitoring device according to a first embodiment of the present invention.

Fig. 4 is an exploded view of the health monitoring device of the wearable apparatus shown in fig. 2.

Fig. 5 is a schematic diagram of a combination of a light shielding member and a physiological parameter monitoring module in the wearable device shown in fig. 2.

Fig. 6 is a first angular perspective view of a housing in the wearable device shown in fig. 2.

Fig. 7 is a second angular perspective view of the housing in the wearable device shown in fig. 2.

Fig. 8 is a first angular perspective view of a light transmissive member in the wearable device shown in fig. 2.

Fig. 9 is a second angular perspective view of the light transmissive member of the wearable device of fig. 2.

DESCRIPTION OF SYMBOLS IN THE DRAWINGS

Health monitoring device 100

Housing 20

Physiological parameter monitoring Module 10

Shade 30

Carrier plate 11

Light source 12

Photodetector 13

First bearing surface 111

Second bearing surface 112

Body 21

The first light-transmitting member 23a

Second light-transmitting member 23b

Bottom 210

Window area 212

Luminous window 214

Sensing window 216

Inner bottom 2101

Back face 2103

Inner surface 2121

Outer surface 2123

Light blocking portion 2125

Substrates

230a, 230b

Extension walls

232a, 232b

Groove walls

238a, 238b

Grooves

236a, 236b

Outer side walls 235a, 235b

Injection molding part 234a

First frame 2127

Second frame 2129

First opening 31

Second opening 32

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed description of known functions and known components.

Referring to fig. 1, the wearable device 99 may be configured as, but is not limited to, a wristband, watch, ring, arm band, etc. wearable product. In this embodiment, the wearable device 99 is provided as a tethered wristband. The wearable device 99 includes a health monitoring apparatus 100 and a wristband 200. The wristband 202 is used to attach the health monitoring device 100 to, but is not limited to, a wearer's wrist, arm.

Referring to fig. 2 to 5 in combination, the health monitoring device 100 includes a housing 20, a physiological parameter monitoring module 10, and a light shielding member 30. Wherein, the physiological parameter monitoring module 10 is fixedly installed on the housing 20, and the light shielding member 30 is located between the physiological parameter monitoring module 10 and the housing 20 and is extruded to deform.

The physiological parameter monitoring module 10 includes a carrier 11, a light source 12, and a photodetector 13. The light source 12 and the light detector 13 are mounted on the carrier plate 11. In the present embodiment, the number of photodetectors 13 is 2. The carrier 11 is substantially rectangular, and the carrier 11 includes a first bearing surface 111 and a second bearing surface 112 opposite to the first bearing surface 111. The light source 12 and the photodetectors 13 are disposed on the first carrying surface 111, and the two photodetectors 13 are symmetrically disposed on two sides of the light source 12.

Specifically, the physiological parameter monitoring module 10 measures the heart rate of the user using photoplethysmography principles (Photo Plethysmo Graphy, PPG). It will be appreciated that the type of light source 12 may be selected based on the measured physiological parameter. For example, if the light source 12 is required for heart rate measurement purposes, the type of light source 12 is preferably a green emitting LED, as the green light may be more visible and less disturbing, as the light is reflected from the skin of a person. If used to measure other physiological parameters than heart rate, such as blood oxygen levels, the type of light source 12 is preferably a light emitting device that emits red or infrared light. In the present embodiment, the physiological parameter monitoring module 10 mainly uses the light source 12 to measure heart rate, so a green light emitting LED is preferable as the first light source 11.

Specifically, the two photodetectors 13 are phototransistors, such as Photodiodes (PDs). The centers of the sensing areas of the two photodetectors 13 are positioned on the same straight line with the center of emission of the light source 12. Wherein the light sensing area of the light detector 13 is in a regular pattern, in this embodiment square is used. In some possible embodiments, the light sensing area of the light detector 13 may also be rectangular or other pattern.

Referring to fig. 4, 6 and 7, the housing 20 is integrally formed. The housing 20 includes a main body 21, a first light-transmitting member 23a, and a second light-transmitting member 23b. The main body 21 includes a bottom 210, and a window area 212 formed in the bottom 210. The first light-transmitting member 23a and the second light-transmitting member 23b are disposed in the window area 212 to form a light-emitting window 214 and two sensing windows 216. The window area 212 is provided with a light blocking portion 2125 surrounding the first light transmitting member 23a and the second light transmitting member 23b. In the present embodiment, the light emission window 214 and the two sensing windows 216 are respectively in one-to-one correspondence with the light source 12 and the light detector 13. Wherein the housing 20 is formed by two-shot molding. The light-transmitting member 23 is made of a light-transmitting material such as PC. The body 21 is made of a light-impermeable material such as ABS. When the physiological parameter monitoring module 10 is mounted on the housing 20, the bottom 210 covers one side of the carrier 11 provided with the light source 12 and the light detector 13, and the light source 12 and the light detector 13 are in one-to-one correspondence with the light emitting window 214 and the sensing window 216.

The bottom 210 includes an inner bottom surface 2101 facing the carrier plate 11 and a back surface 2103 opposite the inner bottom surface 2101. Window area 212 includes an inner surface 2121, an outer surface 2123 opposite inner surface 2121. The inner surface 2121 is recessed relative to the inner bottom surface 2101. The outer surface 2123 protrudes from the back face 2103. The thickness of the bottom 210 is 0.6 to 0.8mm.

The first light-transmitting member 23a and the second light-transmitting member 23b are substantially identical in structure. Specifically, the first light-transmitting member 23a includes a base 230a, an extension 232a extending from a peripheral edge of an end face 2301a of the base 230a, a recess 236a defined by the base 230a and the extension 232a, a groove wall 238a surrounding the recess 236a, and an injection molding portion 234a extending from the extension 232 a. The longitudinal section of the base 230a is generally trapezoidal, i.e., the base 230a gradually increases from the end remote from the extension 232a to the end connecting the extension 232 a. The substrate 230 includes a light-transmitting face 2302a opposite the end face 2301 a. The light-transmitting surface 2302a is formed on the outer surface 2123 of the window area 212 and is in the same plane as the window area 212. The first light-transmitting member 23a further includes an outer sidewall 235a, and the outer sidewall 235a is formed by the outer sidewall of the base 230a and the outer sidewall of the extension 232 a.

The second light-transmitting member 23b also includes a base 230b, an extension 232b extending from the peripheral edge of the end face 2301b of the base 230b, a recess 236b defined by the base 230b and the extension 232b, an injection molded portion (not shown) extending from the extension 232b, and the like. The first light-transmitting member 23a and the second light-transmitting member 23b are different in that: the first light transmitting member 23a and the second light transmitting member 23b are disposed in one-to-one correspondence with the light source 12 and the light detector 13 with a certain difference in size. The thickness of the

substrates

230a, 230b of the first light-transmitting member 23a and the second light-transmitting member 23b is 0.7-0.8 mm.

In this embodiment, the outer side wall 236a and the injection molding portion 234a of the first transparent member 23a, and the outer side wall 236b and the injection molding portion (not shown) of the second transparent member 23b are covered by the main body 21 made of the non-transparent material, so that the

substrates

230a, 230b form the light emitting window 214 and the sensing window 216, and the light blocking portion 2125 on the window area 212. A gap G exists between the

substrates

230a, 230b and the photodetector 103 and light source 102. It will be appreciated that the light transmissive surfaces 2302a, 2302b and the

groove walls

238a, 238b of at least the first and second light transmissive members 23a, 23b need to be ensured not to be covered by the non-light transmissive material.

The light blocking portion 2125 surrounds the first light transmitting member 23a and the second light transmitting member 23b. The light blocking portion 2125 protrudes from the inner surface 2121 to form a first frame 2127 and a second frame 2129, as viewed from the inner surface 2121. The first frame 2123 and the second frame 2129 enclose the light-emitting window 214 and the sensing window 216, respectively. The light emission window 214, the sensing window 216, and the light blocking portion 2125 are located in the same plane as viewed from the outer surface 2123, i.e., the outer surface 2123 of the window area 212 is a plane.

In the injection molding, the first light-transmitting member 23a and the second light-transmitting member 23b are injection molded using a light-transmitting material, and then the main body 21 is injection molded using a light-non-transmitting material. Since the

grooves

236a, 236b are formed on the first light-transmitting member 23a and the second light-transmitting member 23b, the first light-transmitting member 23a and the second light-transmitting member 23b will not be self-released after injection molding is completed in the two-shot molding process, so as to achieve the purpose of completing two-shot molding with the main body 21. It will be appreciated that the

substrates

230a, 230b of the first and second light-transmitting members 23a, 23b may be capable of being double-molded with the main body 21 even at a relatively thin thickness, such as 0.7-0.8 mm. That is, since the first light-transmitting member 23a and the second light-transmitting member 23b are structured, the thinner first light-transmitting member 23a, second light-transmitting member 23b, and bottom 210 can be molded using double-shot molding.

Referring to fig. 2 to 4 in combination, the light shielding member 30 is substantially rectangular and has a size substantially matching that of the window area, and in this embodiment, the light shielding member 30 is made of a light-shielding foam material. In some possible embodiments, the shade 30 may also be made of silicone. The light shielding member 30 is provided with a first opening 31 and a second opening 32, and the light source 12 and the light detector 13 are in one-to-one correspondence with the first opening 31 and the second opening 32, respectively. The light shielding member 30 is disposed on the first supporting surface 111, and the light source 11 and the light detector 13 are exposed from the first opening 31 and the second opening 32. In this embodiment, the light shielding member 30 is made of an adhesive material, such as glue, tape, etc., and is adhered to the first carrying surface 111 and surrounds the light detector 13 and the light source 12, so that the light emitted from the light source 12 is prevented from being incident on the light detector 13. In some possible embodiments, the light shielding member 30 may be only provided with the second opening 32 and only surrounds the periphery of the light source 12, or it may be achieved that the light emitted from the light source 12 is prevented from being incident on the light detector 13. In some possible embodiments, the size of the shade 30 need not match the size of the base 210. The light shielding member 30 surrounds only the periphery of the light source 12, that is, the light shielding member 30 may be a single frame body covering the light source 12, or may prevent the incident light of the light source 12 from directly entering the light sensor 13. Alternatively, the light shielding member 30 covers only the periphery of the light source 12 and the photodetector 13, and can prevent the incident light of the light source 12 from directly entering the photodetector 13, and can prevent the ambient light from entering the photodetector 13.

Referring to fig. 2 again, when the physiological parameter monitoring module 10 is mounted on the housing 20, the light shielding member 30 is located between the carrier 10 and the bottom 21. The light shielding member 30 abuts against the carrier plate 11 and the light blocking portion 2125, respectively, and is deformed. So that the light shielding member 30 is filled between the light shielding portion 2125 and the position of the light shielding portion 2125 corresponding to the first bearing surface 111, that is, the light source 12 and the light sensor 13 emit light only from the light emitting window 214 under the action of the light shielding portion 2125 and the light shielding member 30, and the light sensor 13 can only receive light taken in from the sensing window 216, thereby preventing light emitted from the light source 12 from directly entering the light sensor 13. While also preventing ambient light from entering the light sensor 13 and interfering with it. Therefore, the physiological parameter monitoring module 10 improves the accuracy of the detection.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. A health monitoring device comprises a shell and a physiological parameter monitoring module arranged on the shell; the physiological parameter monitoring module comprises a carrier plate, and a light source and a light detector which are arranged on the same side of the carrier plate; the shell comprises a main body, a first light-transmitting piece and a second light-transmitting piece; the main body comprises a bottom and a window area formed on the bottom, wherein the window area comprises an outer surface and an inner surface which are oppositely arranged; the bottom covers one side of the carrier plate, provided with the light source and the light detector; the light-emitting device is characterized in that the shell is integrally formed by double-shot injection, the first light-transmitting piece and the second light-transmitting piece are arranged in the window area to form a light-emitting window and a sensing window, and the light-emitting window and the sensing window are respectively in one-to-one correspondence with the light source and the light detector; the window area is provided with a light blocking part which surrounds the light emitting window and the sensing window respectively; the health monitoring device further comprises a shading piece, wherein the shading piece is positioned between the carrier plate and the bottom and surrounds the light source and the light detector; the shading piece is respectively abutted against the carrier plate and the light blocking part, so that light emitted by the light source is emitted only from the light emitting window;

the light blocking part protrudes from the inner surface to form a first frame; the first frame surrounds the periphery of the luminous window and is abutted against the shading piece;

the light shielding member also surrounds the light detector; the light blocking part also protrudes from the inner surface to form a second frame; the second frame surrounds the periphery of the sensing window and abuts against the shading piece;

the first light-transmitting piece and the second light-transmitting piece both comprise a substrate and an extension part arranged on the substrate, the extension part extends from the periphery of the end face of the substrate to the direction of the carrier plate, the extension part and the substrate jointly form a groove, the end face of the substrate faces the carrier plate, and the longitudinal section of the substrate is in a trapezoid shape by gradually increasing from one end far away from the extension part to one end connected with the extension part;

the first light-transmitting piece and the second light-transmitting element further comprise injection molding parts respectively, and the injection molding parts extend from the extension parts along the direction parallel to the end face of the substrate.

2. The health monitoring device of claim 1, wherein said bottom comprises an inner bottom surface facing said carrier plate and a back surface facing away from said carrier plate, said window area protruding from said back surface.

3. The health monitoring device of claim 2, wherein said inner surface faces said carrier plate and said window area has a planar outer surface.

4. The health monitoring device as set forth in claim 1, wherein the light shielding member is deformed by being pressed by the carrier plate and the light shielding portion.

5. The health monitoring device of claim 1, wherein the shade is sized to match the size of the base.

6. A wearable device comprising the health monitoring apparatus of any one of claims 1-5 and a tie for wearing the health monitoring apparatus on an external object.