CN202078301U - Vessel finder - Google Patents
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- CN202078301U CN202078301U CN2011201580843U CN201120158084U CN202078301U CN 202078301 U CN202078301 U CN 202078301U CN 2011201580843 U CN2011201580843 U CN 2011201580843U CN 201120158084 U CN201120158084 U CN 201120158084U CN 202078301 U CN202078301 U CN 202078301U
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Abstract
The utility model relates to a vessel finder, which comprises a light source device, an imaging device, a processing device and a display device, wherein the light source device comprises a narrow-band light emitting diode (LED) light source group comprising a purality of narrow-band LED light sources with different center wavelengths; the imaging device comprises an image sensor, the surface of the sensitizing element of the image sensor is covered with a plane array type multi-channel narrow band filtering layer; and the display device comprises a display. The vessel finder disclosed by the utility model has the beneficial effects that relative vague effect and strong light scattering effect of infrared light in the vessels of other tissues in the infrared imaging technology can be overcome, deeper vessels can be penetrated, the position of tiny and shallow vein vessels which are different to distinguish can be accurately found in time, and the vessel finder has the advantages of small volume and low cost; and a noise signal irrelevant to vessel images is eliminated, the signal to noise ratio is improved, the visual contrast and the contrast ratio of the vessels to be measured and surrounding tissues are also improved, the contrast ratio and the objective accuracy of the vessel images are drastically improved, and a target vessel can be more accurately and sensitively targeted.
Description
Technical field
The present invention relates to a kind of blood vessel and look for device, especially a kind of multispectral superficial vein blood vessel finder.
Background technology
Intravenous injection is substantially the most also to be the most frequent medical treatment clinically, and medical personnel will carry out a large amount of acupuncture manipulations.At present medical personnel to the patient injection medicine, provide transfusion, conduit insertion etc. all to take to look at straight down puncture.Medical personnel at first will position institute's puncture vessel, and thick and better full as patient's body surface blood vessel, the operator can directly carry out the location of vascular puncture point by naked eyes, and puncture also is easy to success; But a lot of patients are because of reasons (as old age, weakling, child, fat person etc.) such as the colour of skin are dark, body surface angioplerosis is bad, blood vessel is thin, subcutaneous fat is thicker, the operator can't directly see the blood vessel that will puncture, experienced operators can puncture according to operating experience in the past, as change needle angle, adopting various measures makes angioplerosis, surveys method localization of blood vessel such as vascular pulsation by finger.The success rate of puncture is relevant with operator's experience and proficiency level, this just can not guarantee the success rate of each operator's puncture, operator such as one-time puncture are unsuccessful might to carry out the second time or multi-pass operation, has so just increased patient's misery and medical-risk.Particularly in rescuing critical patient and military first aid process, some patient is owing to severe loss of blood, blood vessel are full, vein blood vessel can't with the naked eye observe directly, and can not in time find blood vessel not only to cause patient to bear misery, also can incur loss through delay the best opportunity of rescuing and treating.
Seek the known technology of vein blood vessel at present, the light source that adopts is ordinary light source or infrared light sources usually, and main radiation modality is transparent irradiation and back scatter.
Transparent radiation modality adopts power light source, and the diversity of utilizing tissue and blood vessel that light is absorbed produces color contrast and seeks vessel position.High-octane power supply not only makes the operator stimulated by high light, and the patient that can burn; The volume of instrument is big simultaneously, is not easy to manipulate.Discrete optical filtering mode also can cause the blood-vessel image noise, and the accuracy of blood-vessel image is sought in influence.
The back scatter mode adopts the adjutage structure, in two adjutages lighting source is set, and can intercept lateral light when seeking the superficial vein blood vessel, reduces the intensity of reflected light of ambient light and tissue surface.But this structure has reduced the projection light intensity, has hindered the position of illumination light depth of origin pressure tissue blood vessel, has influenced the judgement of vessel position.
Adopt infrared light sources to seek the superficial vein blood vessel, technique known is that the infrared transmitter emission wavelength is the illumination light of 850nm, hemoglobin is that the absworption peak of 850nm near infrared light is bigger to the wavelength of transmission tissue in the vein blood vessel, utilize tissue and the diversity of blood vessel to spectral absorption, produce color contrast, by the near-infrared reception and at video camera imaging.But this known technology uses discrete colour filter to filter and can produce noise signal in the transmission imaging process of infrared light, and this noise signal can influence the accuracy that obtains image.
Summary of the invention
In order to remedy above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention provides a kind ofly can judge in real time, accurately, in high sensitivity that the blood vessel of vein blood vessel position looks for device.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of blood vessel is looked for device, comprises
Light supply apparatus is used for uniform irradiation tissue blood vessel to be measured, and described light supply apparatus comprises narrow-band LED light sources and the switch that can control automatically, and described switch can carry out on-off control to different narrow-band LED light sources respectively;
Imaging device, be used to receive the reflected light and the scattered light of tissue blood vessel to be measured and generate several arrowband blood-vessel images simultaneously, described imaging device comprises imageing sensor, the photosensitive member surface of imageing sensor covers and is provided with planar array type multichannel narrow-band-filter layer, described planar array type multichannel narrow-band-filter layer is formed by the multichannel narrow-band-filter of periodic arrangement is first in length and breadth by M * N, described multichannel narrow-band-filter unit is made up of K the narrow-band-filter infinitesimal by the different centre wavelengths of matrix arrangement, the centre wavelength of described narrow-band-filter infinitesimal is one by one corresponding to the characteristic wavelength of blood vessel fingerprint material, each pixel cell surface of described photo-sensitive cell has and only is coated with a kind of narrow-band-filter infinitesimal, described M, N, K is the positive integer more than or equal to 1;
Blood processor, be used to handle the arrowband blood-vessel image that imaging device generates and will handle after blood-vessel image be transported to display device;
Display device comprises display, is used for the blood-vessel image after display processing unit is handled.
For further optimizing the present invention, described planar array type multichannel narrow-band-filter laminating is attached on the photosensitive member surface of described imaging device imageing sensor.
For further optimizing the present invention, described planar array type multichannel narrow-band-filter layer directly is produced on the photosensitive member surface of described imaging device imageing sensor with photoetching or vacuum coating mode.
Be further to optimize the present invention, the bright dipping end of described narrow-band LED light source also comprises the light transmission that a narrow band pass filter allows the wave band narrower than the radiation zone of this narrow-band LED light source and shines tissue blood vessel to be measured surface.
For further optimizing the present invention, the centre wavelength that described planar array type multichannel narrow-band-filter layer is seen through is corresponding to the deoxyhemoglobin absworption peak, and described narrow-band LED light sources is made up of corresponding to the narrow-band LED light source of deoxyhemoglobin absworption peak the radiation center wavelength.
For further optimizing the present invention, described narrow-band LED light sources is made up of the narrow-band LED light source that the radiation center wavelength is respectively 440nm, 570nm, 850nm and 970nm, and described multichannel narrow-band-filter unit is made up of 4 narrow-band-filter infinitesimals that are respectively 440nm, 570nm, 850nm and 970nm by the centre wavelength of matrix periodic arrangement in length and breadth.
For further optimizing the present invention, described planar array type multichannel narrow-band-filter layer comprises the narrow-band-filter infinitesimal that corresponds respectively to deoxyhemoglobin absworption peak, water absworption peak, dermal melanin absworption peak, fat absorption peak through centre wavelength, and described narrow-band LED light sources is made of corresponding to the narrow-band LED light source of the absworption peak of fat corresponding to narrow-band LED light source, the radiation center wavelength of dermal melanin corresponding to narrow-band LED light source, the radiation center wavelength of water absworption peak narrow-band LED light source, the radiation center wavelength of radiation center wavelength corresponding to the deoxyhemoglobin absworption peak.
For further optimizing the present invention, described narrow-band LED light sources is respectively 577nm by the radiation center wavelength, the narrow-band LED light source of 650nm, 810nm, 910nm is formed, and described multichannel narrow-band-filter unit is made up of 4 kinds of narrow-band-filter infinitesimals that are respectively 577nm, 650nm, 810nm, 910nm by the centre wavelength of matrix periodic arrangement in length and breadth.
For further optimizing the present invention, described narrow-band LED light sources is made up of the narrow-band LED light source that the radiation center wavelength is respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm, and described multichannel narrow-band-filter unit is made up of 7 kinds of narrow-band-filter infinitesimals that are respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm by a matrix cycle horizontal centre wavelength in length and breadth.
The innovative point that blood vessel of the present invention is looked for device is:
1, the present invention corresponds respectively to the narrow-band LED light source at deoxyhemoglobin absworption peak, water absworption peak, dermal melanin absworption peak and fat absorption peak as radiation source with the radiation center wavelength corresponding to the narrow-band LED light source or the radiation center wavelength of deoxyhemoglobin absworption peak, make full use of tissue and blood vessel to the special generation color contrast of spectrographic absorption, especially utilize in the blood deoxyhemoglobin special corresponding to the absorption of its absworption peak, produce obvious color contrast with its hetero-organization to the radiation center wavelength;
2, the photosensitive member surface of imageing sensor of the present invention covers and is provided with planar array type multichannel narrow-band-filter layer, narrow-band-filter infinitesimal wherein only allows to pass through corresponding to the light of deoxyhemoglobin absworption peak wavelength in the blood or corresponding to the long light of water absworption peak, dermal melanin absworption peak and fat absorption spike, eliminated and the irrelevant noise signal of blood-vessel image, improved the visual contrast and the contrast of blood vessel to be measured and surrounding tissue, thereby made imageing sensor obtain several objective and accurate arrowband blood-vessel images together in a flash;
4, the present invention be provided with blood processor to several arrowband blood-vessel images that imaging device generates further analyze, processing such as correction, integrated imaging, synthesize a width of cloth real-time objective, clear and accurate blood-vessel image and will handle after blood-vessel image be transported to display device;
5, display device of the present invention is used for the blood-vessel image after display processing unit is handled.
Blood vessel of the present invention is looked for device compared with prior art, and the beneficial effect that has is:
1, overcome infrared light that infrared imagery technique exists relative blurring effect and intensive light scattering effect, can penetrate darker blood vessel at other tissue blood vessel, promptly and accurately search out superficial vein vessel position that tiny difficulty is distinguished, and volume is little, cost is low.
2, eliminated and the irrelevant noise signal of blood-vessel image, not only improved signal to noise ratio, also improve simultaneously the visual contrast and the contrast of blood vessel to be measured and surrounding tissue, significantly improved the contrast and the objective and accurate degree of blood-vessel image, can determine the target blood vessel more accurate, more delicately.
Blood vessel of the present invention is looked for device can be widely used in the process of under the various medical treatment situations blood vessel being offered free medical treatment, such as medical personnel to patient's venous transfusion, the guiding of inserting vein blood vessels such as conduit, ligation operation, bypass operation, especially for the critical patient and the military first aid wounded of low age child patient or severe loss of blood, blood vessel of the present invention is looked for device and can be found the position of vein blood vessel to puncture fast and accurately, wins the best opportunity of rescuing and treating.
Description of drawings
Fig. 1 looks for the theory structure sketch map of device for blood vessel of the present invention.
Fig. 2 is the structural representation of planar array type multichannel narrow-band-filter layer of the present invention.
Label declaration:
1, narrow-band LED light sources 11 narrow-band LED light sources
12, narrow band pass filter 2, imaging device 3, imageing sensor
4, planar array type multichannel narrow-band-filter layer 5, multichannel narrow-band-filter unit
6, narrow-band-filter infinitesimal 7, blood processor 8, display device
9, tissue blood vessel to be measured
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
With reference to Fig. 1, the structure that blood vessel of the present invention is looked for device comprises
Light supply apparatus is used to shine tissue blood vessel to be measured, and described light supply apparatus 1 comprises narrow-band LED light sources 1, and described narrow-band LED light sources 1 is made up of corresponding to the led light source of vein blood vessel fingerprint material property absorbing wavelength the radiation center wavelength.Vein blood vessel fingerprint material mainly comprises deoxyhemoglobin (be called blood vessel hematochrome, haemachrome again, not with the hemoglobin of combination with oxygen etc.), can also comprise water; In order to reduce the covering to vein blood vessel of dermal melanin and subcutaneous fat, these led light sources can also comprise the narrow-band LED light source of centre wavelength corresponding to the respective wavelength of the absworption peak of dermal melanin and subcutaneous fat simultaneously.Correspondingly, the led light source group corresponds respectively to the narrow-band LED light source 11 of blood vessel hematochrome absworption peak, water absworption peak, dermal melanin absworption peak and subcutaneous fat absworption peak by the radiation center wavelength corresponding to the narrow-band LED light source 11 of deoxyhemoglobin absworption peak or radiation center wavelength or comprises the narrow-band LED light source that the radiation center wavelength corresponds respectively to deoxyhemoglobin absworption peak and blood vessel hematochrome, water, dermal melanin and subcutaneous fat absworption peak simultaneously and forms; , can also be equipped with a center before each narrow-band LED light source 11 of light supply apparatus 1 and see through the narrow band pass filter 12 that wavelength is positioned at the radiation center wavelength of this narrow-band LED light source and allow the light transmission of the wave band narrower to shine on tissue blood vessel to be measured 9 surfaces than this narrow-band LED radiation zone for thereby the spectral region of further the narrow-band LED light source being sent light narrows down Wavelength matchedly with the fingerprint material property spectral centroid of vein blood vessel;
Imaging device, be used to receive the filtered light of filtering apparatus and generate the arrowband blood-vessel image, described imaging device 2 comprises imageing sensor 3, the photosensitive member surface of imageing sensor covers and is provided with planar array type multichannel narrow-band-filter layer 4, the structure of described planar array type multichannel narrow-band-filter layer 4 is with reference to shown in Figure 2, by M * N (also is that " A ") forms: be made up of the individual horizontal multiple multichannel narrow-band-filter first 5 of M in the horizontal in Fig. 2 enlarged drawing by the multichannel narrow-band-filter unit 5 of periodic arrangement in length and breadth, be made up of the multiple multichannel narrow-band-filter first 5 of N arranged vertical in the vertical, wherein M and N are the positive integer more than or equal to 1.Described multichannel narrow-band-filter unit 5 forms (on the right of Fig. 2 in the amplification legend K=4) by the narrow-band-filter infinitesimal 6 that K difference of arranging by matrix sees through centre wavelength, the structure of narrow-band-filter infinitesimal 6 is identical with the structure of known narrow band pass filter commonly used, the centre wavelength of described narrow-band-filter infinitesimal 6 is one by one corresponding to the radiation center wavelength of narrow-band LED light source, each pixel cell surface of described photo-sensitive cell has and only is coated with a kind of narrow-band-filter infinitesimal 6, so that each pixel cell of photosensitive region is only sensed the filtered light of narrow-band-filter infinitesimal and is the light of single wavelength, guarantee the accuracy of imaging, described K is the positive integer more than or equal to 1; Because covering, the photosensitive member surface of imageing sensor is provided with planar array type multichannel narrow-band-filter layer 4, described image forming device 2 can be at several monochromatic spectrum images that help to seek vein blood vessel with the K width of cloth that obtains the automatic calibration of spatial relation in a flash, improve the frame rate of the multispectral ultimate image of imageing sensor, make the user in operating process, obtain real-time imaging, seek blood vessel in order to guides user about the relative position that penetrates needle point and vein blood vessel;
Blood processor 7, be used to handle the arrowband blood-vessel image that imaging device generates and will handle after blood-vessel image be transported to image display device, in the described blood processor in advance the program of design to several arrowband blood-vessel images analyze, processing such as correction and integrated imaging, synthesize a width of cloth real-time objective, clear and accurate blood-vessel image;
With reference to Fig. 1 and Fig. 2, the operation principle that blood vessel of the present invention is looked for device is: during use, narrow-band LED light sources 1 produces a uniform light field above tissue blood vessel 9 to be measured, when light penetrates tissue blood vessel 9 to be measured, because tissue is variant to spectral absorption with blood vessel, the deoxyhemoglobin in the vessel inner blood particularly, water, the absorption spectrum of skin and fat obviously is different from surrounding tissue, its reflected light and scattered light can produce the obvious color contrast, reflected light and scattered light cover the planar array type multichannel narrow-band-filter layer 4 that is provided with through the photosensitive member surface of imageing sensor 3,6 permissions of its narrow-band-filter infinitesimal are corresponding to deoxyhemoglobin absworption peak in the blood, the water absworption peak, the light of dermal melanin and subcutaneous fat absworption peak wavelength passes through, eliminated and the irrelevant noise signal of blood-vessel image, the visual contrast and the contrast of blood vessel to be measured and surrounding tissue have been improved, thereby on imageing sensor 3, directly reflect deoxyhemoglobin or blood vessel hematochrome in the blood with forming several in a flash, water, the image of skin and fat, these images all can be used as the image of reaction blood vessel feature.When narrow-band LED light sources 1 was made up of corresponding to the narrow-band LED light source of deoxyhemoglobin absworption peak the radiation center wavelength, the image that obtains on the imageing sensor 3 was the image that directly reflects deoxyhemoglobin in the blood; When narrow-band LED light sources 1 was made up of corresponding to the narrow-band LED light source of deoxyhemoglobin, water, dermal melanin and subcutaneous fat absworption peak the radiation center wavelength, the image that obtains on the imageing sensor 3 was the image that directly reflects deoxyhemoglobin, water, skin and fat.These images all are the arrowband blood-vessel images that can reflect the blood vessel situation of tissue blood vessel 9 to be measured.Imageing sensor 3 obtains to pass to blood processor 7 behind these arrowband blood-vessel images, in the blood processor 7 in advance the program of design to several arrowband blood-vessel images analyze, processing such as correction and integrated imaging, synthesize a width of cloth real-time objective, clear and accurate blood-vessel image and be transported to the display of display device, make the medical worker can find vessel position fast and accurately.
For further optimizing the present invention, described planar array type multichannel narrow-band-filter layer 4 is attached on the described photosensitive member surface, and planar array type multichannel narrow-band-filter layer 4 is an optical element of making separately at this moment, helps large-scale production and maintain and replace;
For further optimizing the present invention, described planar array type multichannel narrow-band-filter layer 4 directly is produced on the described photosensitive member surface with photoetching or vacuum coating mode, the advantage of this mode is: can cover whole photosensitive member surface better, prevent the noise jamming and the monochromatic phase mutual interference that sees through between the light of other band of light.
For further optimizing the present invention, described light supply apparatus also comprises switch, and different narrow-band LED light sources is controlled automatically.
For further optimizing the present invention, described narrow-band LED light sources 1 is made up of corresponding to the narrow-band LED light source of deoxyhemoglobin absworption peak the radiation center wavelength, and the arrowband blood-vessel image that obtains of imaging device be the image that directly reflects the deoxyhemoglobin in the blood vessel of tissue blood vessel 9 to be measured like this.The optimal way of this prioritization scheme is: the radiation center wavelength of described narrow-band LED light source is respectively 440nm, 570nm, 850nm and 970nm, and the centre wavelengths that described multichannel narrow-band-filter unit 5 is arranged by 42 * 2 matrixes are respectively the narrow-band-filter infinitesimal 6 of 440nm, 570nm, 850nm and 970nm and form.
For further optimizing the present invention, described narrow-band LED light sources 1 is made up of corresponding to the narrow-band LED light source at blood vessel hematochrome, water, skin and fat absorption peak the radiation center wavelength.The arrowband blood-vessel image of imaging device acquisition is the image of blood vessel hematochrome, water, skin and the fat of directly reflection tissue blood vessel 9 to be measured like this.The optimal way of this prioritization scheme is: the radiation center wavelength of described narrow-band LED light source is respectively 577nm, 650nm, 810nm, 910nm, and described multichannel narrow-band-filter unit 5 is made up of 4 narrow-band-filter infinitesimals 6 that laterally are respectively 577nm, 650nm, 810nm, 910nm with vertical compact arranged centre wavelength.A.740nm, 810nm, 880nm, 950nm as the optimal way arranged side by side of this prioritization scheme, the radiation center wavelength of described narrow-band LED light source can also be selected following several combination:; B.532nm, 600nm, 810nm; C.532nm, 577nm, 766nm; D.550nm, 589nm, 810nm, corresponding, described multichannel narrow-band-filter unit 5 is made of corresponding to the narrow-band-filter infinitesimal 6 of the radiation center wavelength of narrow-band LED light source one by one the centre wavelength of respective number.
For further optimizing the present invention, described narrow-band LED light sources 1 is formed corresponding to the narrow-band LED light source at deoxyhemoglobin absworption peak, water absworption peak, dermal melanin absworption peak and fat absorption peak by comprising the radiation center wavelength simultaneously.The arrowband blood-vessel image that obtains of imaging device be deoxyhemoglobin, water, skin and the fatty image in the blood vessel of directly reflection tissue blood vessel 9 to be measured like this.The optimal way of this prioritization scheme is: the radiation center wavelength of described narrow-band LED light source is respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm, and described multichannel narrow-band-filter unit 5 is made up of the narrow-band-filter infinitesimal 6 that 7 horizontal centre wavelengths are respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm.A.440nm, 570nm, 850nm, 970nm, 740nm, 810nm, 880nm, 950nm as the optimal way arranged side by side of this prioritization scheme, the radiation center wavelength of described narrow-band LED light source can also be selected following several combination:; B.440nm, 570nm, 850nm, 970nm, 532nm, 600nm, 810nm; C.440nm, 570nm, 850nm, 970nm, 532nm, 577nm, 766nm; D.440nm, 570nm, 850nm, 970nm, 550nm, 589nm, 810nm, accordingly, described multichannel narrow-band-filter unit 5 is made of corresponding to the narrow-band-filter infinitesimal 6 of the radiation center wavelength of narrow-band LED light source one by one the horizontal centre wavelength of respective number.
Blood vessel of the present invention is looked for device compared with prior art, and the beneficial effect that has is:
1, overcome infrared light that infrared imagery technique exists relative blurring effect and intensive light scattering effect, can penetrate darker blood vessel at other tissue blood vessel, promptly and accurately search out superficial vein vessel position that tiny difficulty is distinguished, and volume is little, cost is low.
2, eliminated and the irrelevant noise signal of blood-vessel image, not only improved signal to noise ratio, also improve simultaneously the visual contrast and the contrast of blood vessel to be measured and surrounding tissue, significantly improved the contrast and the objective and accurate degree of blood-vessel image, can determine the target blood vessel more accurate, more delicately.
Blood vessel of the present invention is looked for device can be widely used in various medical treatment situations, be specially adapted to various acupunctures or injection, especially for the critical patient and the military first aid wounded of low age child patient or severe loss of blood, blood vessel of the present invention is looked for device and can be found the position of vein blood vessel to puncture fast and accurately, wins the best opportunity of rescuing and treating.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. a blood vessel is looked for device, it is characterized in that: comprise
Light supply apparatus is used for uniform irradiation tissue blood vessel to be measured, and described light supply apparatus comprises narrow-band LED light sources and the switch that can control automatically, and described switch can carry out on-off control to different narrow-band LED light sources respectively;
Imaging device, be used to receive the reflected light and the scattered light of tissue blood vessel to be measured and generate several arrowband blood-vessel images simultaneously, described imaging device comprises imageing sensor, the photosensitive member surface of imageing sensor covers and is provided with planar array type multichannel narrow-band-filter layer, described planar array type multichannel narrow-band-filter layer is formed by the multichannel narrow-band-filter of periodic arrangement is first in length and breadth by M * N, described multichannel narrow-band-filter unit is made up of K the narrow-band-filter infinitesimal by the different centre wavelengths of matrix arrangement, the centre wavelength of described narrow-band-filter infinitesimal is one by one corresponding to the characteristic wavelength of blood vessel fingerprint material, each pixel cell surface of described photo-sensitive cell has and only is coated with a kind of narrow-band-filter infinitesimal, described M, N, K is the positive integer more than or equal to 1;
Blood processor, be used to handle the arrowband blood-vessel image that imaging device generates and will handle after blood-vessel image be transported to display device;
Display device comprises display, is used for the blood-vessel image after display processing unit is handled.
2. blood vessel according to claim 1 is looked for device, it is characterized in that: described planar array type multichannel narrow-band-filter laminating is attached on the photosensitive member surface of described imaging device imageing sensor.
3. blood vessel according to claim 1 is looked for device, it is characterized in that: described planar array type multichannel narrow-band-filter layer directly is produced on the photosensitive member surface of described imaging device imageing sensor with photoetching or vacuum coating mode.
4. blood vessel according to claim 1 is looked for device, it is characterized in that: the bright dipping end of described narrow-band LED light source also comprises the light transmission that a narrow band pass filter allows the wave band narrower than the radiation zone of this narrow-band LED light source and shines tissue blood vessel to be measured surface.
5. look for device according to any described blood vessel of claim 1 to 4, it is characterized in that: the centre wavelength that described planar array type multichannel narrow-band-filter layer is seen through is corresponding to the deoxyhemoglobin absworption peak, and described narrow-band LED light sources is made up of corresponding to the narrow-band LED light source of deoxyhemoglobin absworption peak the radiation center wavelength.
6. blood vessel according to claim 5 is looked for device, it is characterized in that: described narrow-band LED light sources is made up of the narrow-band LED light source that the radiation center wavelength is respectively 440nm, 570nm, 850nm and 970nm, and described multichannel narrow-band-filter unit is made up of 4 narrow-band-filter infinitesimals that are respectively 440nm, 570nm, 850nm and 970nm by the centre wavelength of matrix periodic arrangement in length and breadth.
7. look for device according to any described blood vessel of claim 1 to 4, it is characterized in that: described planar array type multichannel narrow-band-filter layer comprises through centre wavelength and corresponds respectively to the deoxyhemoglobin absworption peak, the water absworption peak, the dermal melanin absworption peak, the narrow-band-filter infinitesimal at fat absorption peak, described narrow-band LED light sources is by the narrow-band LED light source of radiation center wavelength corresponding to the deoxyhemoglobin absworption peak, the radiation center wavelength is corresponding to the narrow-band LED light source of water absworption peak, the radiation center wavelength is corresponding to the narrow-band LED light source of dermal melanin, the radiation center wavelength constitutes corresponding to the narrow-band LED light source of the absworption peak of fat.
8. blood vessel according to claim 7 is looked for device, it is characterized in that: described narrow-band LED light sources is respectively 577nm by the radiation center wavelength, the narrow-band LED light source of 650nm, 810nm, 910nm is formed, and described multichannel narrow-band-filter unit is made up of 4 kinds of narrow-band-filter infinitesimals that are respectively 577nm, 650nm, 810nm, 910nm by the centre wavelength of matrix periodic arrangement in length and breadth.
9. blood vessel according to claim 7 is looked for device, it is characterized in that: described narrow-band LED light sources is made up of the narrow-band LED light source that the radiation center wavelength is respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm, and described multichannel narrow-band-filter unit is made up of 7 kinds of narrow-band-filter infinitesimals that are respectively 440nm, 570nm, 850nm, 970nm, 770nm, 810nm, 910nm by a matrix cycle horizontal centre wavelength in length and breadth.
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| CN2011201580843U CN202078301U (en) | 2011-05-17 | 2011-05-17 | Vessel finder |
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| CN2011201580843U CN202078301U (en) | 2011-05-17 | 2011-05-17 | Vessel finder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274004A (en) * | 2011-05-17 | 2011-12-14 | 易定容 | Blood vessel finder |
| CN102813504A (en) * | 2012-08-29 | 2012-12-12 | 北京理工大学 | Multi-spectral three-dimensional venous image display device |
| CN104414620A (en) * | 2013-08-23 | 2015-03-18 | 东莞市中健医疗设备科技有限公司 | Binocular camera based vein positioning method and device |
| CN104883972A (en) * | 2012-11-30 | 2015-09-02 | 株式会社东芝 | Medical light source and medical light source system using same |
| CN105286785A (en) * | 2014-07-25 | 2016-02-03 | 美国科视数字系统公司 | Multispectral medical imaging devices and methods thereof |
| CN105848566A (en) * | 2013-10-23 | 2016-08-10 | 因索诺有限责任公司 | Device for non-invasive detection of predetermined biological structures |
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2011
- 2011-05-17 CN CN2011201580843U patent/CN202078301U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102274004A (en) * | 2011-05-17 | 2011-12-14 | 易定容 | Blood vessel finder |
| CN102274004B (en) * | 2011-05-17 | 2013-08-28 | 易定容 | Blood vessel finder |
| CN102813504A (en) * | 2012-08-29 | 2012-12-12 | 北京理工大学 | Multi-spectral three-dimensional venous image display device |
| CN104883972A (en) * | 2012-11-30 | 2015-09-02 | 株式会社东芝 | Medical light source and medical light source system using same |
| CN104883972B (en) * | 2012-11-30 | 2020-06-09 | 株式会社东芝 | Medical light source and medical light source system using same |
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| CN105848566A (en) * | 2013-10-23 | 2016-08-10 | 因索诺有限责任公司 | Device for non-invasive detection of predetermined biological structures |
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