CN211213104U - A hand-held type fiber probe for organizing spectral detection - Google Patents
A hand-held type fiber probe for organizing spectral detection Download PDFInfo
- Publication number
- CN211213104U CN211213104U CN201921938184.0U CN201921938184U CN211213104U CN 211213104 U CN211213104 U CN 211213104U CN 201921938184 U CN201921938184 U CN 201921938184U CN 211213104 U CN211213104 U CN 211213104U
- Authority
- CN
- China
- Prior art keywords
- detection
- lens
- hand
- light
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 239000000523 sample Substances 0.000 title claims abstract description 34
- 230000003595 spectral effect Effects 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000005538 encapsulation Methods 0.000 claims abstract description 4
- 230000008033 biological extinction Effects 0.000 claims abstract 2
- 239000013307 optical fiber Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 description 8
- 230000031700 light absorption Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000001237 Raman spectrum Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003748 differential diagnosis Methods 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to an optical detection instrument field discloses a hand-held type fiber probe for organizing spectral detection, including double-clad fibre, lens, detection mouth and encapsulation shell, double-clad fibre includes incident fibre core and outgoing fibre core, the encapsulation shell is the extinction material, effectively avoids producing the reverberation and disturbs. Exciting light enters from the incident fiber core, is collimated and converged by the lens to irradiate the tissue sample to be detected at the detection port, and a scattering signal generated on the sample is collimated and coupled to the emergent fiber core by the lens. By adopting the structure, the probe is small in size, the detection light path is simplified, the light energy utilization is effectively ensured, the influence of environmental factors is effectively reduced, the signal intensity is enhanced, and the sensitivity and the signal-to-noise ratio of the detection system are improved.
Description
Technical Field
The utility model relates to an optical detection instrument field especially relates to a hand-held type fiber probe for organizing spectral detection.
Background
In recent years, spectroscopic detection techniques have been widely used in the field of biomedical testing. Particularly, the detection technology of reflection spectrum, Raman spectrum and fluorescence spectrum is more commonly applied. The principle of these techniques is that when probe light reaches a certain depth inside the tissue, part of the light is absorbed by the tissue and the rest is scattered back to the tissue surface. The scattered photons contain important information of biological tissues, a plurality of parameters related to human physiology can be obtained through non-invasive or minimally-invasive detection based on scattering spectrum measurement, and certain clinical differential diagnosis can be provided according to physiological parameters with abnormal differences by comparing the scattering spectra of detected sample tissues and in-situ normal tissues of the same body. The technology has the advantages of simple principle, convenient operation, immediate and accurate in-vivo noninvasive detection and the like, and has extremely important significance and wide application prospect in the field of pathological detection and clinical diagnosis of biological tissues.
In the biological tissue spectrum detection research, the optical fiber probe is very important for ensuring the accuracy of finally obtained spectrum information. The transmission path of the optical fiber probe for receiving the scattered photons has a large influence on the detection sensitivity, while the traditional detection probe has low resolution and sensitivity and a complex structure.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the defects of the existing problems are overcome, and the handheld optical fiber probe for tissue spectrum detection is low in cost, simple in structure, high in sensitivity and signal-to-noise ratio.
The technical solution of the utility model is as follows.
A hand-held fiber optic probe for tissue spectroscopic examination, comprising: the double-clad fiber comprises an incident fiber core and an emergent fiber core, light enters from the incident fiber core, is collimated and converged by the lens to irradiate a sample to be detected at the position of the detection port, and a scattering signal generated on the sample to be detected is collimated by the lens and is coupled to the emergent fiber core.
Furthermore, the caliber of the double-clad optical fiber can be selected and used for transmitting a light source.
Furthermore, the optical path propagation path formed by the optical fiber and the lens is sealed in the outer shell, the optical path structure of the device is simplified, scattered light is prevented from being transmitted in the air and being easily interfered by dust, external light and vibration, and meanwhile, the problem that the signal-to-noise ratio of the system is low due to reflected light interference is avoided by adopting a light absorption material.
Preferably, the lens is a self-focusing lens, is installed in the outer shell through the adapter, is convenient to disassemble, is used for collimation and focusing of light, selects the lens with optional focal length and diameter model, collects scattered light as much as possible, improves the utilization of light energy, and effectively improves the sensitivity of the device.
Preferably, the probe front end is that detection mouth department encapsulation shell is disposable protective housing, can dismantle the replacement, effectively avoids detecting pollution and the error that different samples that await measuring and cause.
The utility model adopts the above technical scheme, following beneficial effect has.
1. The light path structure is simplified, the system sensitivity is effectively guaranteed, and the in-vivo in-situ rapid detection of the tissue to be detected is realized.
2. The whole light path structure is packaged in the shell made of light absorption materials, so that the problem that the signal-to-noise ratio of the system is low due to the fact that scattering signals of a sample are transmitted in the air and are easily interfered by dust, external light and reflection signals of the shell wall is effectively solved.
To sum up, the utility model discloses improved light energy utilization ratio when effectively having simplified the light path structure, guaranteed system sensitivity and SNR.
Drawings
Fig. 1 is a schematic diagram of the main structure of a handheld fiber probe for tissue spectrum detection provided by the present invention.
Fig. 2 is a schematic cross-sectional view of the optical fiber of the handheld optical fiber probe for tissue spectrum detection of the present invention.
Wherein: 1-double clad fiber; 101-incident fiber core; 102-an emergent core; 2-a lens; 3-a detection port; and 4, packaging the shell.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides a hand-held fiber probe for tissue spectroscopy detection, comprising a double-clad fiber 1; an incident core 101; an emergent core 102; a lens 2; a detection port 3; encapsulating the housing 4.
The double-clad optical fiber 1 comprises an incident fiber core 101 and an emergent fiber core 102, light enters from the incident fiber core 101, is collimated and converged by the lens 2 to irradiate on a sample to be detected at the detection port 3, and a scattering signal generated on the sample to be detected is collimated by the lens 2 and is coupled to the emergent fiber core 102.
The caliber of the double-clad optical fiber 101 is selectable and is used for transmitting a light source.
The light path propagation path formed by the optical fiber 101 and the lens 2 is sealed in the outer shell 4, so that the light path structure of the device is simplified, scattered light is prevented from being transmitted in the air and being easily interfered by dust, external light and vibration, and meanwhile, a light absorption material is adopted, so that the problem of low signal-to-noise ratio of the system caused by reflected light interference is avoided.
Lens 2 is self-focusing lens, installs in the shell through the adapter, and it is convenient to dismantle for collimation, the focus of light, and choose for use focus, the optional lens of diameter model, even its collection scattered light as much as possible improves the light energy utilizability, effectively improves device sensitivity.
The front end of the probe, namely the packaging shell at the detection port is a disposable protective shell, can be disassembled and replaced, and effectively avoids pollution and errors caused by detection of different tissue samples to be detected.
The above description is only intended to illustrate the technical solution of the present invention, and not to limit it. It should be noted that although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations are also regarded as the protection scope of the present invention.
Claims (6)
1. A hand-held fiber optic probe for tissue spectroscopic examination, comprising: the double-clad optical fiber comprises an incident fiber core and an emergent fiber core; light enters from the incident fiber core, is collimated and converged by the lens and irradiates on a tissue sample to be detected at the detection port, and a scattering signal generated on the sample to be detected is collimated by the lens and coupled to the emergent fiber core.
2. A hand-held fiber optic probe for spectroscopic examination of tissue according to claim 1 wherein: the double-clad optical fiber has selectable caliber and is used for transmitting light sources.
3. A hand-held fiber optic probe for spectroscopic examination of tissue according to claim 1 wherein: the lens is a self-focusing lens, is arranged in the shell through the adapter, can be detached, has selectable focal length and diameter, and is used for collimating and converging light.
4. A hand-held fiber optic probe for spectroscopic examination of tissue according to claim 1 wherein: the sample to be detected is placed at the detection port, the incident light is scattered at the position, and the scattered light contains biological tissue information.
5. A hand-held fiber optic probe for spectroscopic examination of tissue according to claim 1 wherein: the encapsulation shell provides airtight dark environment for propagating the light path, has avoided the scattered light to transmit in the air, receives the interference of dust, external light and vibration easily, adopts the extinction material simultaneously, avoids producing the reverberation and disturbs.
6. A hand-held fiber optic probe for spectroscopic examination of tissue according to claim 1 or 5, wherein: the shell at the position of the front end of the probe, namely the detection port, is a disposable protective shell, can be disassembled and replaced, and effectively avoids pollution and errors caused by detection of different samples to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938184.0U CN211213104U (en) | 2019-11-12 | 2019-11-12 | A hand-held type fiber probe for organizing spectral detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938184.0U CN211213104U (en) | 2019-11-12 | 2019-11-12 | A hand-held type fiber probe for organizing spectral detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211213104U true CN211213104U (en) | 2020-08-11 |
Family
ID=71929058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921938184.0U Expired - Fee Related CN211213104U (en) | 2019-11-12 | 2019-11-12 | A hand-held type fiber probe for organizing spectral detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211213104U (en) |
-
2019
- 2019-11-12 CN CN201921938184.0U patent/CN211213104U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9506808B2 (en) | Handpiece with integrated optical system for photothermal radiometry and luminescence measurements | |
| US9036970B2 (en) | Method and device for diffuse excitation in imaging | |
| CN105358947B (en) | Integration spectrum for Raman, reflection and fluorescence spectral measuring is popped one's head in | |
| CN202230024U (en) | Fluorescence enhancement type optical fiber fluorescent probe | |
| CN108896485A (en) | A kind of confocal point type fibre-optical probe of broadside for detecting tissue spectrum | |
| CN103462645A (en) | Forward-looking optic-acoustic endoscope | |
| CN107334477A (en) | A kind of double spectrum noninvasive dynamics monitoring devices | |
| CN104873175A (en) | System and method for diffused optical tomography and photoacoustic tomography combined measurement | |
| CN108956507B (en) | Chlorophyll spectrum detector | |
| CN211213104U (en) | A hand-held type fiber probe for organizing spectral detection | |
| JP2005536741A (en) | Apparatus for detecting backscatter in laser-based blood analysis systems | |
| CN207964611U (en) | A kind of blood glucose photoacoustic detection device of many reference amounts | |
| US20100219354A1 (en) | Device for measuring fluorescent radiation on biological substances with a semi-conductor sensor arrangement | |
| CN115524312A (en) | Portable near-infrared SPR detection device | |
| CN214584889U (en) | Built-in compact near-infrared on-line detection system of integrating sphere | |
| JP4360661B2 (en) | Biological light measurement device | |
| JP2898489B2 (en) | Equipment for spectrophotometric analysis | |
| CN212394892U (en) | Optical coherence tomography endoscopic probe and imaging system | |
| JP5420163B2 (en) | Biological measuring device | |
| CN210376119U (en) | Non-intrusive blood component concentration measuring device | |
| CN106413570A (en) | Measurement probe, measurement device, and attachment mechanism | |
| CN101581666A (en) | Skin optical parameters tester and probe production method based on continuous wave | |
| CN108780041B (en) | Portable optical device for diffuse reflectance spectroscopy | |
| CN2778199Y (en) | Portable non-invasive blood sugar monitoring instrument | |
| CN212816219U (en) | Medical OCT sample arm and medical OCT imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |