CN102894960A - Transmission-type hand back vein three-dimensional infrared imager - Google Patents
Transmission-type hand back vein three-dimensional infrared imager Download PDFInfo
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Abstract
The invention aims at providing an auxiliary medical device capable of obtaining position and depth information of hand back veins of a human body and relates to a transmission-type hand back vein three-dimensional infrared imager which consists of an infrared source, multi-channel vidicons, a visible light cut-off infrared transmission filter and a computing and processing unit. The technical scheme is that the infrared source emits near-infrared light and irradiates the near-infrared light on a detected region, the infrared light penetrates through a hand back to enter the vidicons through the visible light cut-off infrared transmission filter, the two vidicons can acquire skin images at different angles, a position and depth image of the veins can be obtained after the computing and processing unit performs processing, accordingly the imager assists a doctor to obtain the position and depth information of the veins in a region to be injected, and the success rate of the injection is improved.
Description
Technical field
The present invention is medical supplementary instrument, what be specifically related to is a kind of instrument of infrared vein three-dimensional imaging, utilize this equipment can realize the collection of patient's hand back vein, and obtain the tomograph of hand back vein by Computer Processing, auxiliary doctor finishes the three-dimensional guiding of venipuncture.
Background technology
Venipuncture is a very common and very important medical care precess, in the time of particularly in case of emergency will rescuing the critical patient rapidly, can successfully seem particularly important by quick puncture.But want rapidly and carry out exactly the venipuncture not a duck soup: adiposis patient is because subcutaneous fat is thicker, and vein is darker, during venipuncture must tourniquet prick very tight; Edema patient is because the covering of its tissue edema is not easy to see clearly and touch blood vessel, tighten tourniquet after, also need with puncture place of finger vascular compression, and action is quite rapid, otherwise local edema will cause again vein to see clearly; Age is little, and disoperative child usually needs the very abundant nurse of experience, and will prick at least 2 tourniquets during venipuncture; Peripheral circulatory failure patient, especially hemorrhagic shock patient, its Superficial veins disappearance, blood vessel subsides, and its venipuncture is very difficult.
The problem that is difficult to search in order to solve vein blood vessel has been made many correlational studyes both at home and abroad, and main developing method is by laser scan type, transmission-type and based on the display instrument video picture of infrared light reflection formula with based on back projection's video picture of infrared light reflection formula.
The dual-wavelength laser scanning projection display system of contemporary optics instrument National Key Laboratory of Zhejiang University research in 2008 is to utilize laser scanning to develop.Its operation principle is that the iraser that infrared laser is launched reflects through two-phase color mirror sexual reflex, more successively through line scanning vibration mirror reflected and field scanning vibration mirror reflected, and last skin area with certain track scanning patient.When control unit is opened visible laser, visible light is successively through optical devices irradiation patient skins zones such as two-phase color mirror sexual reflex, line scanning galvanometer and field scanning galvanometers, thereby demonstrates the positional information of vein blood vessel.
China's Nanjing Lin Kang medical science and technology company limited was distinguished the hand back vein imaging system of design in 2005 specially because of superficial vein concealment difficulty for the patient, it adopts unique spectrum (HONGGUANG) projection principle, greatly strengthen blood vessel and surrounding tissue contrast, make hand back vein high-visible, kept simultaneously the verity of blood vessel.
Reflective infrared imaging optical projection system is that this area research is many at present.The technical staff of the Luminetx company of the U.S. reflective infrared Venography Techniques that began one's study from 1999 has been succeeded in developing vein observing instrument.Infrared light is incident upon on the patient site of puncture, the reflects infrared light that contains the venae subcutaneae distributed intelligence is accepted imaging by video camera, computer system is carried out real time enhancing to this image and is processed, then by the surface of projector projects to patient's arm, the venae subcutaneae track in area to be illuminated territory is presented on the skin clearly.
Yet, the final imaging of these technology all is two-dimensional signal, the depth information that does not have blood vessel, in addition, the blood vessel imaging of different levels can produce the situation of imaginary intersection at two dimensional image, the problem of bringing thus be can't the paying attention puncture when implementing puncture the degree of depth, and imaginary intersection point can affect the nurse to the selection of blood vessel.And existing hand back vein imaging system is mostly utilized the reflected light imaging, and reflected light can only reflect the superficial veins information of the back of the hand, can't be to palm than the deep layer vein imaging.Utilize the method for transillumination active illumination, the whole palm of the light transmission that light source sends can obtain each layer vein image of palm.And be equivalent to an irreflexive process during by palm, can make the imaging beam energy more even, be convenient to subsequent treatment.
So this paper has proposed a kind of new instrument: utilize the method for infrared transillumination active illumination to obtain the image of hand back vein, and utilize binocular stereo vision that the vein image that collects is processed, obtain the three-dimensional information of hand back vein.
Summary of the invention
The objective of the invention is to solve because fat, the dark colour of skin, anemia, hypopiesia, erythrocytosis, vein is of poor quality and peripheral blood vessel contraction etc. causes the vein problem of easy-to-search not, to improve the success rate of venipuncture, reduce the misery of sufferer, strive for the time of rescuing.
The present invention utilizes blood the absorption of Infrared to be better than the absorption of surrounding tissue, and Infrared is radiated at the image that skin area becomes on thermal camera, and its blood vessel is obviously partially dark than surrounding tissue, thus, just can obtain clearly image of contrast.
The present invention is by infrared light supply (1), infrared camera (4) (two or more), infrared light filter (3) and the computer processor (5) of seeing through of visible light cut-off.Its mid-infrared light source (1) is the led light source of 850nm wavelength (or other wavelength); Visible light cut-off is infrared to see through the front end that light filter (3) is placed in infrared camera (4), and its characteristic is filtering visible light effectively, only sees through the light of infrared band, with the image imaging quality that guarantees that thermal camera collects; Two or more infrared cameras (4) are placed in the both sides in patient zone to be detected (2) at a certain distance, then two images are sent to form the vein tomograph with depth information after calculation processing unit (5) is processed.
The present invention can also comprise:
1, infrared light supply of the present invention (1) is designed to the shape of disk, in order to obtain uniform light intensity at irradiated region.
2, image can use the method that improves infrared light supply power in order to obtain clearly in the present invention, also can adopt the method that improves camera acquisition light intensity performance, such as: the media such as water or vaseline be coated with at tested skin area to reduce skin to the direct reflection of infrared light; The angle of thermal camera and light source is set; Before thermal camera, add the methods such as optical glass.
3, the infrared light filter (2) that sees through of visible light cut-off of the present invention is with the impact of filtering visible light, but the complete filtering visible light of optical filter in fact, need thus the image that gathers is processed method commonly used such as histogram equalization Enhancement Method and based on the image enchancing method of wavelet transformation.
4, result of the present invention is the Real-time Collection vein image and utilizes binocular stereo vision that the vein image that collects is processed, and obtains the three-dimensional information of hand back vein.Resulting three-dimensional information is the pseudo color image that contains the vein depth information, and different colors or gray scale can represent the organizational structure of different depth.
Main contributions of the present invention and characteristics are: solve the low problem that is difficult to imaging of special sufferer intravenous contrast, and can provide depth information to the vein blood vessel of different levels, reduced the difficulty of venipuncture.
Description of drawings
Fig. 1 is the structured flowchart of system.Wherein, 1 is infrared light supply, and 2 is patient zone to be detected, and 3 are the infrared light filter that sees through of visible light cut-off, and 4 is thermal camera, and 5 is calculation processing unit.
Fig. 2 is the algorithm flow block diagram of system.
The specific embodiment
Below in conjunction with accompanying drawing and in conjunction with instantiation the present invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
As shown in Figure 1, patient zone to be detected (2) is positioned over the centre of binocular or many orders thermal camera (4) and infrared light supply (1), collected the infrared image of hand back vein by thermal camera, calculation processing unit (5) is according to the image of binocular or many orders thermal camera (4) shooting, remove noise through image filtering, and vein image carried out Stereo matching, realize the calculating of vein blood vessel three-dimensional information, and utilize the depth information of gray scale and pseudo-colours information representation vein blood vessel.
Claims (4)
1. the three-dimensional infreared imaging device of transmission-type hand back vein is characterized in that system comprises following part: patient zone to be detected (2), infrared light filter (3), video camera (4), infrared light supply (1), the calculation processing unit (5) of seeing through of visible light cut-off.Its mid-infrared light source (1) is the led light source of 850nm wavelength (or other wavelength), the active illumination of feasible system; The infrared visible light information that sees through the filtering natural environment light of light filter (3) of visible light cut-off; Video camera (4) gathers the skin image under the diverse location, proposes to comprise after treatment the vein image of depth information, and assist personnel is finished the puncture of vein.
2. the three-dimensional infreared imaging device of transmission-type hand back vein as claimed in claim 1, it is characterized by: infrared multispectral light source (4) can be distributed on the disk by the infrared light supply light emitting diode; The porose throw light that projection is sent in lamp source disc center passes through, during work lamp source disc be in tested the back of the hand zone under.
3. the three-dimensional infreared imaging device of transmission-type hand back vein as claimed in claim 1 is characterized by: the responsive video cameras of two or more infrared lights be positioned over tested the back of the hand zone directly over, make through the Infrared of the back of the hand being accepted by thermal camera as much as possible.
4. the three-dimensional infreared imaging device of transmission-type hand back vein as claimed in claim 1, it is characterized by: utilize calculation processing unit (5) that binocular or multi-lens camera (4) are carried out vessel extraction and Stereo matching, calculate the three dimensional local information that obtains blood vessel, its depth information represents by pseudo-color or gray scale.
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103271719A (en) * | 2013-05-13 | 2013-09-04 | 执鼎医疗科技江苏有限公司 | Blood vessel image locating system |
| CN103919528A (en) * | 2014-04-10 | 2014-07-16 | 武汉虹识技术有限公司 | Intelligent intravenous injection display method and system |
| CN104055489A (en) * | 2014-07-01 | 2014-09-24 | 李栋 | Blood vessel imaging device |
| CN104406951A (en) * | 2014-12-19 | 2015-03-11 | 北京理工大学 | Automatic focusing detection device for micro-fluidic chip |
| CN104706325A (en) * | 2013-04-02 | 2015-06-17 | 林学芹 | Vein observation device and method for lowering power consumption of same |
| CN104799829A (en) * | 2015-05-18 | 2015-07-29 | 郑州麦德杰医疗科技有限公司 | Vein imaging system |
| CN104966082A (en) * | 2015-06-11 | 2015-10-07 | 解山娟 | Finger vein collection device based on multiple cameras |
| CN105760810A (en) * | 2015-02-10 | 2016-07-13 | 公安部第研究所 | Transmission type three-dimensional finger vein data acquisition apparatus |
| CN106236016A (en) * | 2016-08-18 | 2016-12-21 | 皖江新兴产业技术发展中心 | A kind of in-situ projection method for vein displaying picture |
| CN106510626A (en) * | 2016-11-08 | 2017-03-22 | 重庆理工大学 | Human body superficial layer vein three-dimensional reconstruction device and method based on binocular stereoscopic vision |
| CN106510629A (en) * | 2016-11-24 | 2017-03-22 | 中国科学院苏州生物医学工程技术研究所 | Confocal blood vessel imaging machine |
| CN107041729A (en) * | 2016-12-30 | 2017-08-15 | 西安中科微光影像技术有限公司 | Binocular near infrared imaging system and blood vessel recognition methods |
| CN108364555A (en) * | 2018-04-11 | 2018-08-03 | 西安科技大学 | Hand back vein model and its measurement method applied to near-infrared the back of the hand venae subcutaneae depth survey |
| CN108577812A (en) * | 2018-05-16 | 2018-09-28 | 广东欧谱曼迪科技有限公司 | A kind of high-precision near-infrared fluorescent navigation imaging system and method |
| CN108616703A (en) * | 2018-04-23 | 2018-10-02 | Oppo广东移动通信有限公司 | Electronic device and its control method, computer equipment and readable storage medium storing program for executing |
| CN109447052A (en) * | 2019-01-09 | 2019-03-08 | 东浓智能科技(上海)有限公司 | A kind of vena metacarpea identification device being accurately positioned palm position and its implementation |
| CN109844758A (en) * | 2017-08-01 | 2019-06-04 | 南京东屋信息科技有限公司 | Finger vein image acquisition device and smart lock |
| CN110179439A (en) * | 2019-05-13 | 2019-08-30 | 江苏大学 | A kind of portable hand dorsal vein blood vessel aided positioning system and method |
| CN112932482A (en) * | 2021-01-28 | 2021-06-11 | 南通帕克医用材料有限公司 | Puncture technology based on monocular camera recognition |
| CN113693007A (en) * | 2021-08-13 | 2021-11-26 | 北京理工大学 | Fish tank with oxygen supply self-circulation system |
| CN114391792A (en) * | 2021-09-13 | 2022-04-26 | 南京诺源医疗器械有限公司 | Tumor prediction method and device based on narrow-band imaging and imaging endoscope |
| CN114469008A (en) * | 2022-03-09 | 2022-05-13 | 浙江大学 | Blood vessel puncture difficulty intelligent grading device based on blood vessel near-infrared imaging |
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| CN201302723Y (en) * | 2008-10-29 | 2009-09-02 | 北京市新技术应用研究所 | Online multi-spectral palm image collecting instrument |
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Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706325A (en) * | 2013-04-02 | 2015-06-17 | 林学芹 | Vein observation device and method for lowering power consumption of same |
| CN103271719A (en) * | 2013-05-13 | 2013-09-04 | 执鼎医疗科技江苏有限公司 | Blood vessel image locating system |
| CN103919528B (en) * | 2014-04-10 | 2016-01-20 | 武汉虹识技术有限公司 | A kind of intelligent intravenous injection display packing and system |
| CN103919528A (en) * | 2014-04-10 | 2014-07-16 | 武汉虹识技术有限公司 | Intelligent intravenous injection display method and system |
| CN104055489A (en) * | 2014-07-01 | 2014-09-24 | 李栋 | Blood vessel imaging device |
| CN104406951A (en) * | 2014-12-19 | 2015-03-11 | 北京理工大学 | Automatic focusing detection device for micro-fluidic chip |
| CN105760810B (en) * | 2015-02-10 | 2021-11-19 | 公安部第一研究所 | Transmission-type three-dimensional finger vein data acquisition device |
| CN105760810A (en) * | 2015-02-10 | 2016-07-13 | 公安部第研究所 | Transmission type three-dimensional finger vein data acquisition apparatus |
| CN104799829A (en) * | 2015-05-18 | 2015-07-29 | 郑州麦德杰医疗科技有限公司 | Vein imaging system |
| CN104966082A (en) * | 2015-06-11 | 2015-10-07 | 解山娟 | Finger vein collection device based on multiple cameras |
| CN106236016B (en) * | 2016-08-18 | 2019-02-26 | 皖江新兴产业技术发展中心 | A kind of in-situ projection method for vein imaging |
| CN106236016A (en) * | 2016-08-18 | 2016-12-21 | 皖江新兴产业技术发展中心 | A kind of in-situ projection method for vein displaying picture |
| CN106510626A (en) * | 2016-11-08 | 2017-03-22 | 重庆理工大学 | Human body superficial layer vein three-dimensional reconstruction device and method based on binocular stereoscopic vision |
| CN106510629A (en) * | 2016-11-24 | 2017-03-22 | 中国科学院苏州生物医学工程技术研究所 | Confocal blood vessel imaging machine |
| CN107041729A (en) * | 2016-12-30 | 2017-08-15 | 西安中科微光影像技术有限公司 | Binocular near infrared imaging system and blood vessel recognition methods |
| CN109844758A (en) * | 2017-08-01 | 2019-06-04 | 南京东屋信息科技有限公司 | Finger vein image acquisition device and smart lock |
| CN108364555A (en) * | 2018-04-11 | 2018-08-03 | 西安科技大学 | Hand back vein model and its measurement method applied to near-infrared the back of the hand venae subcutaneae depth survey |
| CN108364555B (en) * | 2018-04-11 | 2024-03-01 | 西安科技大学 | Back of hand vein model applied to near infrared back of hand subcutaneous vein depth measurement and measurement method thereof |
| CN108616703A (en) * | 2018-04-23 | 2018-10-02 | Oppo广东移动通信有限公司 | Electronic device and its control method, computer equipment and readable storage medium storing program for executing |
| CN108577812A (en) * | 2018-05-16 | 2018-09-28 | 广东欧谱曼迪科技有限公司 | A kind of high-precision near-infrared fluorescent navigation imaging system and method |
| CN109447052A (en) * | 2019-01-09 | 2019-03-08 | 东浓智能科技(上海)有限公司 | A kind of vena metacarpea identification device being accurately positioned palm position and its implementation |
| CN110179439A (en) * | 2019-05-13 | 2019-08-30 | 江苏大学 | A kind of portable hand dorsal vein blood vessel aided positioning system and method |
| CN110179439B (en) * | 2019-05-13 | 2024-06-07 | 江苏大学 | Portable back of hand vein blood vessel auxiliary positioning system and method |
| CN112932482A (en) * | 2021-01-28 | 2021-06-11 | 南通帕克医用材料有限公司 | Puncture technology based on monocular camera recognition |
| CN113693007A (en) * | 2021-08-13 | 2021-11-26 | 北京理工大学 | Fish tank with oxygen supply self-circulation system |
| CN113693007B (en) * | 2021-08-13 | 2022-04-19 | 北京理工大学 | Fish tank with oxygen supply self-circulation system |
| CN114391792A (en) * | 2021-09-13 | 2022-04-26 | 南京诺源医疗器械有限公司 | Tumor prediction method and device based on narrow-band imaging and imaging endoscope |
| CN114391792B (en) * | 2021-09-13 | 2023-02-24 | 南京诺源医疗器械有限公司 | Tumor prediction method and device based on narrow-band imaging and imaging endoscope |
| CN114469008A (en) * | 2022-03-09 | 2022-05-13 | 浙江大学 | Blood vessel puncture difficulty intelligent grading device based on blood vessel near-infrared imaging |
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