CN109985313A - A kind of ohmeda biliblanket phototherapy light-source system based on COB-LED - Google Patents
A kind of ohmeda biliblanket phototherapy light-source system based on COB-LED Download PDFInfo
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- CN109985313A CN109985313A CN201910389116.1A CN201910389116A CN109985313A CN 109985313 A CN109985313 A CN 109985313A CN 201910389116 A CN201910389116 A CN 201910389116A CN 109985313 A CN109985313 A CN 109985313A
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- 238000001126 phototherapy Methods 0.000 title claims abstract description 19
- 206010023126 Jaundice Diseases 0.000 claims description 11
- 238000005286 illumination Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 4
- 241001025261 Neoraja caerulea Species 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 10
- BPYKTIZUTYGOLE-IFADSCNNSA-N Bilirubin Chemical compound N1C(=O)C(C)=C(C=C)\C1=C\C1=C(C)C(CCC(O)=O)=C(CC2=C(C(C)=C(\C=C/3C(=C(C=C)C(=O)N\3)C)N2)CCC(O)=O)N1 BPYKTIZUTYGOLE-IFADSCNNSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000001225 therapeutic effect Effects 0.000 description 4
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RICKKZXCGCSLIU-UHFFFAOYSA-N 2-[2-[carboxymethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]ethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]acetic acid Chemical compound CC1=NC=C(CO)C(CN(CCN(CC(O)=O)CC=2C(=C(C)N=CC=2CO)O)CC(O)=O)=C1O RICKKZXCGCSLIU-UHFFFAOYSA-N 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 238000005326 angular distribution function Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 238000007699 photoisomerization reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0616—Skin treatment other than tanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
- A61N2005/0652—Arrays of diodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0664—Details
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- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The invention discloses a kind of ohmeda biliblanket phototherapy light-source system based on COB-LED.The present invention is made of multiple COB-LED light sources and circular microlens array, circular microlens array is placed in COB-LED light source surface location, and each COB-LED light source by 6 dominant wavelengths is 470nm, the blue chip that power is 1W and 3 dominant wavelengths are 520nm, power is 1W green light chip package form；The circular microlens array is made of 96 simple lens orthogonal arrangements, and each simple lens radius of curvature is 0.7mm, with a thickness of 0.32mm.The luminous dominant wavelength of light-source system of the invention reaches 95% in the uniformity of receiving surface each section, and the uniformity of illuminance of receiving surface reaches 85%.
Description
Technical field
The present invention relates to medical instruments fields, are to be related to a kind of ohmeda biliblanket phototherapy light based on COB-LED more specifically
Source system.
Background technique
Light source used in current jaundice Phototherapeutic instrument is divided into fluorescent light, halogen light source and LED light source.Fluorescent lamp because
Cause therapeutic effect poor for spectral region width, and the service life of fluorescent lamp is short.Halogen light source luminous intensity is high, spectral region
In more feux rouges and yellow component the skin of baby can be damaged.Domestic jaundice Phototherapeutic instrument is at present with fluorescent light
Based on, halogen lamp jaundice Phototherapeutic instrument is in the starting stage.Since the side effect of both light sources is big, recent domestic is expanded
The research of New LED jaundice Phototherapeutic instrument, such as the LED jaundice Phototherapeutic instrument of NATUS company, U.S. production, the uniformity only have 30%,
Therapeutic effect is poor.Currently, there are mainly two types of the light-source systems of LED jaundice Phototherapeutic instrument: one kind is by power LED light source in 0.1W
The light-source system of array composition, the advantage is that outgoing light homogeneity is higher, but due to using more single LED light source, circuit
Design complex, electric energy loss is more serious；Another kind is the light-source system being made of 1~3W high-power LED light source array,
Advantage is that circuit is relatively simple, light modulation easy to accomplish, but since jaundice Phototherapeutic instrument spectrum dominant wavelength is 490nm or so, mostly
Multiple light sources system be 450nm or so by dominant wavelength blue-ray LED and dominant wavelength be 510nm or so green light LED mixing arrangement
Made of, therefore it is easy to appear the non-uniform phenomenon of light mixing, the spectral wavelength of partial region cannot reach jaundice phototherapy effect most
Good wave-length coverage, and then influence therapeutic effect.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of based on COB-
The ohmeda biliblanket phototherapy light-source system of LED.
The present invention is a kind of ohmeda biliblanket phototherapy light-source system based on COB-LED, is achieved by following technical proposals:
It is made of multiple COB-LED light sources and circular microlens array, circular microlens array is placed in COB-LED light source table
Face position, each COB-LED light source by 6 dominant wavelengths is 470nm, the blue chip that power is 1W and 3 dominant wavelengths are
520nm, the green light chip package that power is 1W form, and encapsulating structure radius is 10mm；The circular microlens array is by 96
Simple lens orthogonal arrangement composition, each simple lens radius of curvature is 0.7mm, with a thickness of 0.32mm；It is true according to neonatal size
The area for determining area of illumination is 50cm*30cm, and COB-LED light source module group is determined according to the illumination requirement of effects of phototherapy for treating jaundice
Number be 10, and ohmeda biliblanket phototherapy light-source system is rearranged in the way of 3-4-3.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is blue light and green light chip to be carried out COB encapsulation, and combine microlens array, multiple COB-LED light sources
Modular arrangements form ohmeda biliblanket phototherapy light-source system.On the one hand it can reduce in COB encapsulation by multiple LED long range assemblage zones
The photochromic non-uniform phenomenon come enhances therapeutic effect；On the other hand the form of light source that multi-chip integrates in systems reduces mould group
Quantity reduces the complexity of circuit.After tested, the luminous dominant wavelength of light-source system reaches in the uniformity of receiving surface each section
95%, the uniformity of illuminance of receiving surface reaches 85%.
Detailed description of the invention
Fig. 1 is ohmeda biliblanket phototherapy light-source system schematic diagram；
Fig. 2 is light mixing Spectral matching flow chart；
Fig. 3 is Spectral matching result figure；
Fig. 4 is single COB-LED structural schematic diagram.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of ohmeda biliblanket phototherapy light-source system based on COB-LED is by multiple COB-LED light sources
And array lens composition, be calculated through double-colored light mixing Spectral matching, each COB-LED light source by 6 dominant wavelengths be 470nm,
The blue chip that power is 1W and the green light chip package that 3 dominant wavelengths are 520nm, power is 1W form, encapsulating structure radius
For 10mm；Circular microlens array is made of 96 simple lens orthogonal arrangements, and single lens radius of curvature is 0.7mm, with a thickness of
0.32mm；The area that area of illumination is determined according to neonatal size is 50cm*30cm, according to the illumination of effects of phototherapy for treating jaundice
It is required that the number to determine COB-LED light source module group is 10, and ohmeda biliblanket phototherapy light source is rearranged in the way of 3-4-3
System.
Steps are as follows for the present invention/invention realization:
(1) blue green light light mixing Spectral matching: Spectral matching process mainly calculates blue green light light mixing spectrum and optimal treatment
Target optical spectrum compares, when the difference of the two reaches minimum, i.e., data point variance minimum when, determine blue, green two kinds of color LED
Quantity and ratio.
As shown in Fig. 2, first determining that the target optical spectrum of ohmeda biliblanket phototherapy light source can adopt the absorption spectrum of bilirubin
Experimentally measure.Trap is normalized, the conclusion drafting gallbladder for considering that bilirubin photoisomerization model obtains is red
Plain absorption spectrum curve.Its peak wavelength is 486nm.
LED light Spectral structure is simulated using Gauss formula, setted wavelength and power are calculated according to formula (1) to (3)
Blue, green light LED light mixing spectrum.Wherein, KBAnd KGIt is the ratio of blue light and green light, P respectivelyBAnd PGRespectively blue light and green light
Spectrum line style, the peak wavelength λ of two kinds of color of lightPBAnd λPG。
P (λ, λ0, Δ λ0.5)=1/3 { g (λ, λ0, Δ λ0.5)+2·g5(λ, λ0, Δ λ0.5)} (2)
PLED (λ)=KB×PB(λ)+KG×PG(λ) (3)
And be compared obtained spectrum with the absorption spectrum of bilirubin, the two data point is calculated according to formula (4)
Variance, according to the amount K to blue light and green lightBAnd KGAdjustment, obtain variance yields the smallest spectrum spectrum shape.It therefore deduces that
The peak wavelength of two kinds of light, spectral half-width and indigo plant, the ratio of green light under best match spectra, as shown in Figure 3.
(2) encapsulation of COB-LED: as shown in figure 4, COB-LED light source is by COB package substrate, LED array, packaging plastic three
A part composition, COB multi-chip package technology is a kind of technology by chip directly placed on pcb board, thus greatly
The thermal resistance that chip is radiated by pcb board is reduced, ensure that the heat dissipation of polycrystalline LED.Circular substrate is that radius is 10mm, simple grain
LED chip is having a size of 1mm × 1mm, the orthogonal array that chip is 3 × 3, and the centre distance of adjacent LED chip is 4mm, in
Between three LED chips be dominant wavelength is 520nm, power is 1W green light LED, six, both sides be dominant wavelength be 470nm, power is
The blue-ray LED of 1W.
(3) microlens array designs；Using microlens array by parallel or quasi-parallel smooth homogenous diffusion or projection, meet true
Fixed requirement.Use circular aperture lens for lenticule model of element.According to geometry image-forming principle, every surface light emitting
LED chip is identical in the luminous intensity of reception screen surfaces, light spot shape, but application luminaire needs to consider the whole uniform of projection hot spot
The light emitting angle of property and lamps and lanterns, it is desirable to which hot spot is closely to be arranged together in an orderly manner, and edge is slightly overlapped but cannot be stacked in completely
Together, and there is certain effective illumination range.When microlens array scatters in the range of certain angle, need to adjust corresponding light
Parameter is learned to meet actual demand, ray tracing solution is carried out in three dimensions and invades problem, generally use formula (5)-(9)
Carry out vector calculating.
If lenticule rotates to obtain curved surface, constructed fuction z=f (r).
It can be obtained according to conservation of energy principle:
ρs(r) rdrd φ=ρw(θ)sinθdθdφ (6)
ρs(f) it is Illumination Distribution on unit illumination face, if ρsIt (r) is constant, the distance of r reference point to face element center,
For rotation angle, θ is beam divergence angle, ρw(θ) is beam brightness distribution, and Simultaneous Equations can obtain:
Space angular distribution function is sought in the case of uniform illumination are as follows:
It obtains circular microlens array through design to be made of 96 simple lens orthogonal arrangements, single lens radius of curvature is
0.7mm, with a thickness of 0.32mm, after tested, microlens array outgoing light homogeneity reaches 85%, and divergence half-angle is more than 42 °.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of ohmeda biliblanket phototherapy light-source system based on COB-LED, it is characterized in that: micro- by multiple COB-LED light sources and circle
Lens array composition, circular microlens array are placed in COB-LED light source surface location, and each COB-LED light source is by 6 dominant wavelengths
For 470nm, power be 1W blue chip and 3 dominant wavelengths are 520nm, power is 1W green light chip package form, encapsulate
Structure radius is 10mm；The circular microlens array is made of 96 simple lens orthogonal arrangements, each simple lens radius of curvature
For 0.7mm, with a thickness of 0.32mm；The area that area of illumination is determined according to neonatal size is 50cm*30cm, according to light therapy
The number that the illumination requirement of jaundice is treated to determine COB-LED light source module group is 10, and is rearranged in the way of 3-4-3
Ohmeda biliblanket phototherapy light-source system.
2. the ohmeda biliblanket phototherapy light-source system according to claim 1 based on COB-LED, it is characterized in that: described each
COB-LED light source is made of three COB package substrate, LED array, packaging plastic parts, and COB package substrate is that radius is 10mm,
Simple grain LED chip is having a size of 1mm × 1mm, the orthogonal array that chip is 3 × 3, and the centre distance of adjacent LED chip is
4mm, intermediate three LED chips are the green light LED that dominant wavelength is 520nm, power is 1W, six, both sides be dominant wavelength be 470nm,
Power is the blue-ray LED of 1W.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542479A (en) * | 2019-09-18 | 2019-12-06 | 常州南京大学高新技术研究院 | Wireless measuring device for neonatal jaundice blue-light therapeutic apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588043A (en) * | 2016-02-23 | 2016-05-18 | 天津工业大学 | Complex compound eye lens type neonatal jaundice phototherapy illuminating system |
| CN105664372A (en) * | 2016-02-24 | 2016-06-15 | 广州美琳美健医疗科技有限公司 | Blue-light therapeutic instrument for jaundice detection |
| CN105749428A (en) * | 2016-02-23 | 2016-07-13 | 天津工业大学 | Free-form surface type neonatal jaundice phototherapy lighting system |
| CN207196402U (en) * | 2017-06-27 | 2018-04-06 | 天津工业大学 | A kind of array free curved lens for LED ohmeda biliblanket phototherapies |
| CN109621216A (en) * | 2018-12-20 | 2019-04-16 | 广州美锐健康产业股份有限公司 | Icterus neonatorum light therapy device |
| CN210170685U (en) * | 2019-05-10 | 2020-03-24 | 天津工业大学 | Jaundice therapeutic instrument light source system based on COB-LED |
-
2019
- 2019-05-10 CN CN201910389116.1A patent/CN109985313A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588043A (en) * | 2016-02-23 | 2016-05-18 | 天津工业大学 | Complex compound eye lens type neonatal jaundice phototherapy illuminating system |
| CN105749428A (en) * | 2016-02-23 | 2016-07-13 | 天津工业大学 | Free-form surface type neonatal jaundice phototherapy lighting system |
| CN105664372A (en) * | 2016-02-24 | 2016-06-15 | 广州美琳美健医疗科技有限公司 | Blue-light therapeutic instrument for jaundice detection |
| CN207196402U (en) * | 2017-06-27 | 2018-04-06 | 天津工业大学 | A kind of array free curved lens for LED ohmeda biliblanket phototherapies |
| CN109621216A (en) * | 2018-12-20 | 2019-04-16 | 广州美锐健康产业股份有限公司 | Icterus neonatorum light therapy device |
| CN210170685U (en) * | 2019-05-10 | 2020-03-24 | 天津工业大学 | Jaundice therapeutic instrument light source system based on COB-LED |
Non-Patent Citations (2)
| Title |
|---|
| LAMOLA A A, BHUTANI V K， WONG R J， ET AL.: "The effect of hematocrit on the efficacy of phototherapy for neonatal jaundice", 《PEDIATRIC RESEARCH》, vol. 74, no. 1, pages 54 - 60 * |
| 杨磊: "LED光源黄疸光疗仪的研究", 《CNKI硕士电子期刊》, pages 1 - 81 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542479A (en) * | 2019-09-18 | 2019-12-06 | 常州南京大学高新技术研究院 | Wireless measuring device for neonatal jaundice blue-light therapeutic apparatus |
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