CN215605719U - Jaundice detector's optical probe device and jaundice detector - Google Patents

Abstract

The utility model discloses an optical probe device of a jaundice detector and the jaundice detector, wherein the optical probe device comprises an optical probe body and an optical probe shell covering the optical probe body, and is characterized in that a detector used for receiving and detecting light reflected by the outside and at least one LED light source positioned around the detector are arranged forwards in the optical probe body; the detector is separated from the LED luminous source by a light-isolating wall; the front end of the optical probe body is provided with a lens fixed on the optical probe shell. According to the utility model, the LED luminous source and the detector are integrated in the optical probe body, so that the overall structure of the optical probe device is simplified while the detection precision is ensured.

Description

Jaundice detector's optical probe device and jaundice detector

Technical Field

The utility model relates to the field of medical instruments, in particular to an optical probe device of a jaundice detector and the jaundice detector.

Background

Through the study and research on the light phenomenon, the understanding of the light essence is deepened, and meanwhile, the rapid development of modern optics and the wide application of optical instruments are greatly promoted, particularly the application on medical instruments, and the problem of detecting a plurality of diseases is solved.

The principle of the light detection device is that a light source irradiates an object to be measured by utilizing the absorption degree of a substance to light, wherein one part of the object to be measured is absorbed and the other part of the object to be measured is emitted. The reflected light irradiates on the photodiode, and is subjected to photoelectric conversion, signal amplification, A/D conversion, data processing and analysis. The key part of the light detection device is a built-in sensor circuit, which generally comprises a light source, a photodiode, a light source driving circuit, an a/D conversion circuit, an operational amplifier and the like. The measurement accuracy of the optical detection device is mainly affected by the stability of the light source, the accuracy of the photodiode, and the transmission structure of the light. At present, the optical detection device applied to the medical field mostly adopts an optical fiber structure for transmission, and is provided with an incident optical fiber and a receiving optical fiber, or only the incident optical fiber/the receiving optical fiber. However, optical fiber transmission has the characteristics of extremely low optical loss, good transmission quality and the like, and the design difficulty and the processing difficulty of the optical detection device are greatly increased by using the optical fiber structure, so that the optical detection device has the defects of complex structure, high cost and the like.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an optical probe device of a jaundice detector and the jaundice detector, and aims to provide an optical probe device which is high in detection precision and simple in structure.

The embodiment of the utility model provides an optical probe device of a jaundice detector, which comprises an optical probe body and an optical probe shell covering the optical probe body, and is characterized in that a detector used for receiving and detecting light reflected by the outside and at least one LED light source positioned around the detector are arranged forwards in the optical probe body; the detector is separated from the LED luminous source by a light-isolating wall; the front end of the optical probe body is provided with a lens fixed on the optical probe shell.

Further, the detector is a photodiode.

Furthermore, the LED luminous sources are provided in a plurality, and the LED luminous sources are all double-color LED luminous sources or single-color LED luminous sources with two luminous colors.

Further, the LED luminous sources are uniformly distributed around the detector, the wavelength ranges of the two-color LED luminous sources are 400 nm-500 nm and 500 nm-600 nm, and the wavelength range of the single-color LED luminous source is 400 nm-500 nm or 500 nm-600 nm.

Furthermore, a PCB is arranged in the optical probe body, the detector is located at the center of the PCB, and the detector and the LED luminous source are arranged on the PCB forward.

Further, a light source perspective area is arranged on the lens, the light source perspective area comprises light source emission perspective windows and light source receiving perspective windows, the number of the light source emission perspective windows is the same as that of the LED light emitting sources, and the light source emission perspective windows are arranged in a one-to-one correspondence mode; the light source receiving perspective window is arranged corresponding to the detector.

Furthermore, the other positions on the lens except the light source perspective area are non-light source perspective areas, and the non-light source perspective areas are made of light-blocking materials and/or are provided with light-blocking layers.

Furthermore, the light-blocking wall is made of a light-blocking material and/or a light-blocking layer is arranged on the wall surface of the light-blocking wall, one end of the light-blocking wall is tightly attached to the PCB, and the other end of the light-blocking wall is tightly attached to the lens.

Furthermore, the rear end of the PCB is provided with an FPC connecting seat which is communicated with an optical probe driving circuit through an FPC connecting wire, and the optical probe driving circuit is electrically connected with the LED luminous source to drive the LED luminous source to emit light.

The embodiment of the utility model also provides a jaundice detector which comprises the optical probe device of the jaundice detector.

The embodiment of the utility model provides an optical probe device of a jaundice detector and the jaundice detector, wherein the optical probe device comprises an optical probe body and an optical probe shell covering the optical probe body, and the jaundice detector is characterized in that a detector used for receiving and detecting light reflected by the outside and at least one LED light source positioned around the detector are arranged in the optical probe body forwards; the detector is separated from the LED luminous source by a light-isolating wall; the front end of the optical probe body is provided with a lens fixed on the optical probe shell. According to the embodiment of the utility model, the LED luminous source and the detector are integrated in the optical probe body, so that the overall structure of the optical probe device is simplified while the detection precision is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an optical probe device of a jaundice detector according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of an optical probe device of a jaundice detector according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an optical probe device of a jaundice detector according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an optical probe device of a jaundice detector according to an embodiment of the present invention, where the optical probe device includes an optical probe body 1 and an optical probe housing 2 covering the optical probe body 1, and with reference to fig. 2 and fig. 3, a detector 111 for receiving and detecting light reflected from the outside and at least one LED light source 112 located around the detector 111 are arranged forward inside the optical probe body 1; the detector 111 is separated from the LED light source 112 by a light-shielding wall 13; the front end of the optical probe body 1 is provided with a lens 14 fixed on the optical probe shell.

In this embodiment, the optical probe device includes the optical probe body 1 and the optical probe housing 2, the optical probe housing 2 may be a hollow cylinder or a rectangle, and the optical probe body 1 includes the detector 111 and the LED light source 112 arranged toward a side to be detected, and the light-blocking wall 13 separates the detector 111 and the LED light source 112, so that the detector 111 can only receive light reflected by the outside (such as skin, etc.), and cannot directly receive light emitted by the LED light source 112.

In the present embodiment, the LED light source 112 and the detector 111 are integrated in the optical probe device, and the light emitting surface of the LED light source 112 faces the lens 14, that is, light is emitted outwards, so that components such as an incident optical fiber, a receiving optical fiber, an optical filter, a light splitting sheet and the like in the prior art are eliminated, that is, the overall structure of the optical probe device is simplified, and the processing difficulty and cost of the optical probe device are reduced. In addition, the LED luminous source can replace the complex arrangement of the traditional optical fiber bundle, a xenon lamp, a white LED and a blue-green filter.

In a specific embodiment, the detector 111 receives and detects the light emitted by the LED light sources 112 according to a preset step, for example, 4 LED light sources 112 are provided, including 2 LED light sources 112 located at the upper right corner and 2 LED light sources 112 located at the lower left corner inside the optical probe body 1. The detector 111 receives and detects the light emitted by the LED light sources 112 according to preset steps, and firstly, the 2 LED light sources 112 located at the upper right corner of the PCB 11 are turned on to emit light, and then the detector 111 receives the light reflected by the skin, thereby completing the corresponding detection. Then, the 2 LED light sources 112 located at the lower left corner are turned on to emit light, and the light reflected by the skin is received by the detector 111, thereby completing the corresponding detection. Further, in the signal measurement process, a signal is measured as a difference value of light data received by the detector 111, which is obtained by a difference in length of a light propagation path between the detector 111 and the plurality of LED light emission sources 112.

In one embodiment, the detector 111 is a photodiode, i.e., the photodiode is used for receiving and detecting the light reflected from the outside. Specifically, the photodiode is a silicon-based photodiode.

In an embodiment, the LED light sources 112 are provided in plural, and each of the plural LED light sources 112 is a dual-color LED light source or a single-color LED light source including two light emitting colors.

In this embodiment, a plurality of LED light sources 112, such as 4 LED light sources 112 or 6 LED light sources 112, are disposed around the detector 111, so as to provide sufficient light for the light probe device. Also, the LED light sources 112 may be dual color light sources, i.e., the LED light sources 112 on each side of the detector 111 may emit light of two colors, for example, the dual color LED light sources above the detector 111 may emit light of two colors, green and blue. Alternatively, the LED illumination sources 112 are monochromatic LED illumination sources comprising two illumination colors, that is, the LED illumination sources on each side of the detector 111 can emit light of only one color, but the monochromatic LED illumination sources at different positions can emit light of different colors, for example, the monochromatic LED illumination source above the detector 111 emits green light, and the monochromatic LED illumination source below the detector 111 emits blue light.

In one embodiment, the LED light sources 112 are uniformly distributed around the detector 111, and the wavelength ranges of the two-color LED light sources are 400nm to 500nm and 500nm to 600nm, and the wavelength range of the single-color LED light source is 400nm to 500nm or 500nm to 600 nm.

In this embodiment, the plurality of LED light sources 112 are uniformly distributed around the detector 111, for example, in a rectangular shape, a triangular shape, a diamond shape, an oval shape, and the like, so that the light emitted by the LED light sources 112 at different positions can be uniformly received by the detector 111, thereby avoiding the occurrence of situations such as receiving more light emitted by the LED light sources 112 at a certain position or receiving less light emitted by the LED light sources 112 at a certain position. In addition, for a double-color LED luminous source, the wavelength range of the emitted light is 400 nm-500 nm and 500 nm-600 nm; for the monochromatic LED light source, the wavelength range of the light emitted by the monochromatic LED light source is 400 nm-500 nm or 500 nm-600 nm, so that the LED light source 112 can be prevented from being interfered by other wavelengths, the accuracy of the optical probe device can be improved, and the skin and eyes can be prevented from being damaged by ultraviolet rays. In addition, the LED luminous source in the wavelength range has the characteristics of low operating point voltage, long service life, small volume and the like. In one embodiment, the emission colors of the dual-color LED light sources are blue and green, and the emission color of the single-color LED light sources is blue or green, for example, the single-color LED light source above the detector 111 emits green light, and the single-color LED light source below the detector 111 emits blue light.

In an embodiment, a PCB 11 is disposed inside the optical probe body 1, the detector 111 is located at a central position of the PCB 11, and the detector 111 and the LED light source 112 are disposed on the PCB 11 facing forward.

In this embodiment, by disposing the PCB 11 in the optical probe body 1, the detector 111 and the LED light sources 112 are integrally disposed on the PCB 11, and the detector 111 is disposed facing forward at the center of the PCB 11, so that when a plurality of LED light sources 112 are disposed, there is enough space for disposing all of the LED light sources 112 around the detector 111. Of course, in other embodiments, the position of the detector 111 on the PCB 11 can be flexibly adjusted according to actual situations.

In an embodiment, a light source perspective area 141 is disposed on the lens 14, the light source perspective area 141 includes light source emission perspective windows 1411 and light source reception perspective windows 1412, and the number of the light source emission perspective windows 1411 is the same as the number of the LED light emitting sources 112 and the positions are disposed in a one-to-one correspondence; the light source receiving perspective window 1412 is disposed corresponding to the position of the detector 111.

In this embodiment, the lens 14 is provided with a light source emitting see-through window 1411 and a light source receiving see-through window 1412, so as to improve the emitting capability and the receiving capability of the light source, avoid the light emitted by the LED light source 112 from being interfered and lost, and avoid the situation of insufficient light received by the detector 112. It can be understood that the LED light sources 112 are disposed forward on the PCB 11 and correspond to the light source emission see-through windows 1411 in position one to one, so that the light emitting surfaces of the LED light sources 112 face the light source emission see-through windows 1411, and further the light can be emitted outward through the light source emission see-through windows 1411; meanwhile, the detector 111 is disposed forward on the PCB 11 and corresponds to the light source receiving see-through window 1412 in position, so that the receiving surface of the detector 111 faces the light source emitting see-through window 1412, and further the light source receiving see-through window 1412 can receive external reflected light.

In an embodiment, the rest positions of the lens 14 except the light source perspective area 141 are non-light source perspective areas 142, and the non-light source perspective areas 142 are made of light-blocking materials and/or are provided with light-blocking layers.

In this embodiment, for the lens 14, except for the light source perspective area 141, the remaining position areas are the non-light source perspective areas 142, the detector 111 corresponds to the light source receiving perspective window 1412, and the LED light emitting source 112 corresponds to the light source emitting perspective window 1411.

In an embodiment, the light-blocking wall 13 is made of a light-blocking material and/or a light-blocking layer is disposed on a wall surface of the light-blocking wall 13, one end of the light-blocking wall 13 is disposed in close contact with the PCB 11, and the other end of the light-blocking wall 13 is disposed in close contact with the lens 14.

In this embodiment, a light-blocking material is used as the light-blocking wall 13, or the light-blocking layer is disposed on the wall surface of the light-blocking wall 13, or the light-blocking wall 13 is made of a light-blocking material and the light-blocking layer is disposed on the wall surface of the light-blocking wall 13, so as to eliminate interference generated when the LED light source 112 and external light receive light from the detector 111, that is, to prevent the detector 111 from directly receiving light emitted from the LED light source 112.

Specifically, the light-blocking wall 13 may be an annular light-blocking wall or a rectangular light-blocking wall, and in a specific application scenario, the light-blocking wall 13 is provided with a plurality of light-blocking walls, and the number of the light-blocking walls is the same as that of the LED light-emitting sources 112, that is, a light-blocking wall 13 is provided between each LED light-emitting source 112 and the detector 111, so as to improve the light-blocking performance. In another specific application scenario, the thickness of the lens 14 is set to be greater than the heights of the detector 111 and the LED light-emitting sources 112, that is, the thicknesses of the light source emission perspective window 1411 and the light source receiving perspective window 1412 are set to be greater than the thicknesses of the detector 111 and the LED light-emitting sources 112, so that each LED light-emitting source 112 can be nested in the light source emission perspective window 1411, that is, the light source perspective area 141 (i.e., the light source emission perspective window 1411 and the light source receiving perspective window 1412) is used as the light-blocking wall 13. Preferably, the inner wall of the photoelectric receiving perspective window 1412 is provided with a light-blocking layer or is made of a light-blocking material.

In one embodiment, an FPC connecting socket 12 is disposed at the rear end of the PCB 11, the FPC connecting socket 12 is connected to an optical probe driving circuit through an FPC connecting wire 121, and the optical probe driving circuit is electrically connected to the LED light sources 112 to drive the LED light sources 112 to emit light.

In this embodiment, the FPC connecting socket 12 disposed at the rear end of the PCB 11 (i.e., the detector 111 and the other end surface of the LED light emitting source 112) is connected by the FPC (Flexible Printed Circuit) connecting wire 121, so as to achieve the effect of driving the LED light emitting source 112 to emit light. Specifically, the FPC connecting socket 12 is connected by using the FPC connecting wire 121, and the FPC connecting wire 121 is LED out to an optical probe driving circuit, such as a constant current driving circuit, so as to drive the LED light emitting source 112 to emit light.

In an embodiment, the rear end of the optical probe casing 2 is provided with a rear cover 21, the rear cover 21 is provided with a through hole 211 for leading wires, and the FPC connecting wire 121 passes through the through hole 211 to connect to the FPC connecting socket 12.

In this embodiment, the through hole 211 is disposed on the rear cover 21 of the optical probe housing 2, and the through hole may be a rectangular through hole or a circular through hole, so that the FPC connecting wire 121 can pass through the optical probe housing 2 and be respectively connected to the LED light source 112 and the optical probe driving circuit, thereby driving the LED light source 112 to emit light. Of course, the through hole 211 may be disposed at other positions of the optical probe housing 2 without affecting the detection of the optical probe device.

The embodiment of the utility model also provides a jaundice detector which comprises the optical probe device of the jaundice detector.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. The optical probe device of the jaundice detector comprises an optical probe body and an optical probe shell covering the optical probe body, and is characterized in that a detector used for receiving and detecting light reflected by the outside and at least one LED light source located around the detector are arranged forwards in the optical probe body; the detector is separated from the LED luminous source by a light-isolating wall; the front end of the optical probe body is provided with a lens fixed on the optical probe shell.

2. The optical probe device of the jaundice detector of claim 1, wherein the detector is a photodiode.

3. The optical probe device of the jaundice detector of claim 1, wherein a plurality of the LED light sources are provided, and each of the plurality of LED light sources is a dual-color LED light source or a single-color LED light source including two emission colors.

4. The optical probe device of the jaundice detector of claim 3, wherein the plurality of LED light sources are evenly distributed around the detector, and wherein the two-color LED light sources have wavelengths ranging from 400nm to 500nm and 500nm to 600nm, and the single-color LED light sources have wavelengths ranging from 400nm to 500nm or 500nm to 600 nm.

5. The optical probe device of the jaundice detector of claim 1, wherein a PCB is disposed inside the optical probe body, the detector is located at a center of the PCB, and the detector and the LED light source are disposed on the PCB facing forward.

6. The optical probe device of the jaundice detector of claim 1, wherein the lens is provided with a light source perspective area, the light source perspective area includes a light source emission perspective window and a light source reception perspective window, and the number of the light source emission perspective windows is the same as the number of the LED light sources, and the positions of the light source emission perspective windows are arranged in a one-to-one correspondence manner; the light source receiving perspective window is arranged corresponding to the detector.

7. The optical probe device of the jaundice detector of claim 6, wherein the other positions on the lens except the light source perspective area are non-light source perspective areas, and the non-light source perspective areas are made of light-blocking materials and/or provided with light-blocking layers.

8. The optical probe device of the jaundice detector of claim 5, wherein the light blocking wall is made of a light blocking material and/or a light blocking layer is disposed on a wall surface of the light blocking wall, one end of the light blocking wall is closely attached to the PCB, and the other end of the light blocking wall is closely attached to the lens.

9. The jaundice detector optical probe device of claim 5, wherein the rear end of the PCB is provided with an FPC connecting seat, the FPC connecting seat is communicated with an optical probe driving circuit through an FPC connecting line, and the optical probe driving circuit is electrically connected with the LED light source to drive the LED light source to emit light.

10. A jaundice detector comprising the optical probe device of the jaundice detector of any one of claims 1-9.

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