CN100531671C - Dual-color laser scanning type medical vein display equipment - Google Patents

Dual-color laser scanning type medical vein display equipment Download PDF

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CN100531671C
CN100531671C CN 200710156506 CN200710156506A CN100531671C CN 100531671 C CN100531671 C CN 100531671C CN 200710156506 CN200710156506 CN 200710156506 CN 200710156506 A CN200710156506 A CN 200710156506A CN 100531671 C CN100531671 C CN 100531671C
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laser
scanning
infrared
visible
mirror
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CN101156778A (en
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旭 刘
刘向东
帆 张
李海峰
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浙江大学
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Abstract

本发明公开了一种双色激光扫描式医用静脉显示装置。 The present invention discloses a two-color laser scanning medical vein display device. 红外激光器发出的红外激光经二相色性反射镜反射,可见光激光器发出的可见激光经全反射镜反射后再透过二相色性反射镜与所述红外激光组成共线光路,光束被行扫描镜、场扫描镜依次反射并扫描到待扫描皮肤区域,待扫描皮肤区域上方设有红外探测器,红外激光器、可见光激光器、行扫描镜、场扫描镜、红外探测器均由控制单元控制。 By infrared laser reflection dichroic mirror emitted infrared laser, visible laser light reflected by the total reflection mirror of the visible light emitted by the laser light path after the composition of collinear transmission of the dichroic mirror and the infrared laser beam is scanned line mirror, and reflected sequentially field scanning mirror to scan an area of ​​skin to be scanned, scanning over an area of ​​skin to be provided with an infrared detector, an infrared laser, visible laser, the line scanning mirror, the scanning mirror field, infrared detectors by the control unit. 本发明可用于临床诊疗中帮助医护人员快速准确找到病患者静脉血管的准确位置,尤其适用于婴幼儿、肥胖型及深肤色病患者。 The present invention can be used in clinical practice to help medical staff to quickly pinpoint the exact location of patients with venous blood vessels, especially for infants and young children, obese and dark-skinned patients. 本发明精度高、可实时显示、使用方便,能有效提高静脉血管定位的速度和精度,减轻诸如静脉注射等医疗环节医患双方的可能负担。 The present invention is of high accuracy, real-time display, easy to use, can effectively improve venous blood vessel speed and precision positioning, both doctors and patients may alleviate the burden, such as intravenous injection and other medical aspects.

Description

双色激光扫描式医用静脉显示装置 The medical laser scanning color vein display device

技术领域 FIELD

本发明涉及医疗器械,尤其涉及一种双色激光扫描式医用静脉显示装置。 The present invention relates to medical devices, particularly to a color laser scanning medical vein display device. 背景技术 Background technique

在临床诊疗过程中,寻找血管是十分常见的情况,比如静脉注射、抽血等。 In the clinical treatment process, the vessel is very common to find cases, such as intravenous injection, blood and so on. 临床上一些如婴幼儿、肥胖型及深肤色的患者会导致血管皮表显示不清晰,使肉眼难以直接观察分辨,给医护人员造成很大困扰,经常导致操作失误或重复操作,增加了医患双方的负担。 Clinically, some, such as infants and young children, obese patients with dark skin and can lead to vascular endothelial table display is not clear, direct observation of the naked eye is difficult to distinguish, caused great distress to health care workers, often resulting in operational errors or repeat operation, increased doctor-patient Both sides of the burden.

专利号为03242235.0 、名称为《静脉穿刺引导仪》以及专利号为200420072576.1、名称为《医用静脉探测装置》的中国专利分别公开了各自的静脉探测装置。 Patent No. 03242235.0, entitled "venipuncture guide instrument" and Patent No. 200420072576.1, entitled "Medical vein sensing device" disclosed in a Chinese patent were their vein detection means. 这两种解决方案都釆取了红外光源直接照射,依靠探测器或摄像机对后向散射光的探测和分析来找到血管的位置。 Both solutions were taken preclude the infrared light source is directly irradiated, relying on the probe to find the position of a blood vessel or a camera to detect and analyze the scattered light after. 此种方法虽然结构简单,但是必须借助一定的光学器件或者摄像机才能观察,观察效果不够直观和清晰。 Although this method is simple in structure, but must use some or camera optics can be observed, the observed effect is not intuitive and clear. 本发明旨在用另一种方式改善上述情况。 The present invention aims to improve the situation in another way. ' 发明内容 'SUMMARY OF THE INVENTION

本发明的目的是提供一种可以直接在血管所在位置的皮肤表面实时显示血管轨迹的双色激光扫描式医用静脉显示装置。 Object of the present invention is to provide a real-time display can be directly on the skin surface of the vessel where the blood vessel locus position of the medical-color laser scanning vein display device.

双色激光'扫描式医用静脉显示装置中的红外激光器发出的红外激光经二向色性反射镜反射,可见光激光器发出的可见激光经全反射镜反射后再透过二向色性反射镜与所述红外激光组成共线光路,光束被行扫描镜、场扫描镜依次反射并扫描到待扫描皮肤区域,待扫描皮肤区域上方设有红外探测器,红外激光器、可见光激光器、行扫描镜、场扫描镜、红外探测器均由控制单元控制。 Color Laser 'intravenous medical scanning infrared laser display apparatus by an infrared laser emits two reflected by the dichroic mirror, visible laser light reflected by the total reflection mirror and then transmitted through the visible light emitted by the laser dichroic mirror and the composition collinear infrared laser light path, and the scanning beam is successively reflected to an area of ​​skin to be scanned line scanning mirror, the scanning mirror field, over the skin area to be scanned with an infrared detector, an infrared laser, visible laser, the line scanning mirror, the scanning mirror field , by infrared detector control unit.

所述的红外激光器是发光波段为红外波段的固体激光器或者半导体激光器。 The laser is an infrared wavelength band of infrared light-emitting solid laser or a semiconductor laser. 可见光激光器是发光波段为可见光波段的半导体激光器。 Visible laser is a semiconductor laser emission wavelength band of visible light. 红外激光器、可见光激光器为两个分立的激光器,或是一个可在红外波段到可见光波段范围内调谐波长的可调谐激光器。 Infrared laser, visible laser as two separate laser or a visible wavelength range can be tuned to the wavelength tunable laser in the infrared band. 行扫描镜、场扫描镜为一对检流计式扫描振镜,或是MEMS振镜或光电式扫描振镜。 Line scanning mirror, a pair of field scanning mirror galvanometer scanning galvanometer mirror or a MEMS vibrator or photoelectric scanning galvanometer. 红外探测器为单个红外接收二极管或单个红外接收三极管,或是由它们组成的线阵或面阵。 A single infrared detector or an infrared receiving diode transistor single infrared receiver, either linear or area array consisting thereof.

本发明能够通过可见光激光扫描将所探测到的静脉血管轨迹在皮肤上实时显示出来。 The present invention is able to visible laser scanning the detected vein trajectory displayed in real time on the skin. 红外扫描探测过程和可见光扫描显示过程不仅可以分别进行,而且可以同时进行。 Infrared scanning to detect visible light scanning process and display process can be carried out not only separately, but also can be carried out simultaneously.

3本发明帮助医护人员在临床找寻病人静脉血管位置的装置。 Medical apparatus 3 invention helps patients in clinical vein position finding. 尤其是针对诸如婴幼儿、肥胖型及深肤色的病患者,在肉眼分辨困难的情况下可帮助医护人员迅速准确的找到静脉血管。 Especially for infants and young children, such as, obese and dark-skinned patients, the naked eye under difficult circumstances to help medical staff quickly and accurately find the vein. 采用直接显示的方式,具有清晰、直观、快速等特点。 Using direct display, a clear, intuitive, fast and so on. 附图说明: BRIEF DESCRIPTION OF:

图1是双色激光扫描式医用静脉显示装置结构示意图; 1 is a schematic structural color laser scanning apparatus Medical vein display;

图2是本发明的逐行扫描方式示意图; FIG 2 is a schematic diagram of the progressive scanning method of the present invention;

图3是本发明的锯齿扫描方式示意图; FIG 3 is a schematic diagram of the present invention, the zigzag scan pattern;

图4是本发明的控制单元框图; FIG 4 is a block diagram of a control unit according to the present invention;

图5是本发明实施例1的流程图; FIG 5 is a flowchart illustrating the present invention in Example 1;

图6是本发明实施例2的流程图; FIG 6 is a flowchart of the embodiment 2 of the present invention;

图中:红外激光器l、可见光激光器2、行扫描镜3、场扫描镜4、,红外探测器5、全反射镜6、 二向色性反射镜7、控制单元8、待扫描皮肤区域9、后向散射光IO、静脉血管ll、红外激光扫描轨迹12。 FIG: L infrared laser, visible laser 2, row scanning mirror 3, the vertical scan mirror 4 ,, infrared detector 5, the total reflection mirror 6, the dichroic mirror 7, the control unit 8, 9 to be scanned, an area of ​​skin, after the scattered light 12 IO, vein ll, infrared laser scanning trajectory. 具体实施方式 Detailed ways

如图1所示,双色激光扫描式医用静脉显示装置中的红外激光器1发出的红外激光经二向色性反射镜7反射,可见光激光器2发出的可见激光经全反射镜6反射,再透过二向色性反射镜7与前述红外激光组成共线光路。 1, two-color laser scanning infrared laser medical vein display device 1 emits an infrared laser through the dichroic mirror 7 is reflected by total reflection of visible light of visible laser 2 emits the laser mirror 6, and then through dichroic mirror 7 and the composition of the infrared laser light path collinear. 光束被行扫描镜3、场扫描镜4依次反射并以一定的轨迹扫描到待扫描皮肤区域9,待扫描皮肤区域9上方设有红外探测器5 ,用来探测后向散射光10的变化信号。 Line scanning beam is a mirror 3, sequentially field scanning mirror 4 and reflected at a constant track scanning an area of ​​skin to be scanned to 9, 9 to be scanned over an area of ​​skin 5 is provided with an infrared detector for detecting the scattered light signals to change 10 . 红外激光器l、可见光激光器2、行扫描镜3、场扫描镜4、红外探测器5均由控制单元8控制。 L infrared laser, visible laser 2, row scanning mirror 3, the vertical scan mirror 4, the infrared sensor 5 by the control unit 8 controls.

所述红外激光器1使用固体激光器或者半导体激光器,波长典型值为800〜 900nm。 The infrared laser using a solid laser or a semiconductor laser, a wavelength of a typical value of 800~ 900nm. 可见光激光器2使用半导体激光器,波长可以是任意可见光波段,波长典型值取633nm。 2 visible laser using a semiconductor laser, a wavelength of visible light may be any wavelength Typical values ​​will 633nm. 红外激光器1和可见光激光器2的光束光点直径大小均为l〜 2mm。 A visible laser and the infrared laser beam spot diameter of 2 are l~ 2mm. 红外激光器1、可见光激光器2为两个分立的激光器通过光学器件合成共线光路,或由一个可在红外波段到可见光波段范围内调谐波长的可调谐激光器构成。 An infrared laser, visible laser 2 for the synthesis of two separate lasers collinear optical path through the optical device, or made into a visible light in the infrared wavelength band tunable wavelength tunable laser configuration. 如果采用双激光器形式,就需要图1中全反射镜6、 二向色性反射镜7所示的光束合成系统。 If the laser is dual form, it is the total reflection mirror 6, the dichroic mirror beam combining system 71 shown in FIG needed. 6是一个对于所选可见光波段的高反射率反射镜,7则是一个可以让特定可见光通过而让特定红外光反射的二向色性反射镜。 6 is a visible band for a selected high reflectance mirror 7 is visible through a particular let let two dichroic mirrors particular reflected infrared light. 两束光通过合束系统的效果是使两束光具有相同的传播方向并且共线。 Two light beams by a beam combiner system the effect is to cause the two beams having the same direction and co-linear propagation.

行扫描镜3、场扫描镜4为一对XY 二维的检流计式扫描振镜,或是MEMS(微电机系统)振镜或光电式扫描振镜。 Row scanning mirror 3, the vertical scan mirror 4 as a pair of two-dimensional XY galvanometer scanning galvanometer, or MEMS (microelectromechanical systems) or optical galvanometer scanning galvanometer. 其中行扫描镜3负责行扫描,场扫描镜4负责场扫描。 Wherein the row scanning mirror 3 is responsible for line scanning and vertical scanning field scanning mirror 4 is responsible. 两振镜以一定的扫描规律组合便可扫描出所需的二维图样。 Two galvanometer scanning law in certain combinations can scan the desired two-dimensional pattern. 待测皮肤区域9上的红外激光扫描轨迹12具体可以是如图2所示的逐行式,也可以是如图3所示的双向锯齿式。 Infrared laser scanning track 9 on the test area of ​​the skin 12 may be specifically as shown in Formula 2 progressive, may be bidirectional as shown in Formula 3 sawtooth. 两种方式各有优点:逐行式扫描点距均匀准确,锯齿式扫描速度较快。 Have advantages in two ways: Progressive scanning pitch uniformly accurate, faster zigzag scanning.

红外探测器5为单个红外接收二极管、红外接收三极管,或由它们组成的 5 as a single infrared detector receiving infrared diode, triode infrared receiver, or consists of a

线阵或面阵。 Linear or area array. 当红外激光扫描轨迹与静脉血管相交时,红外探测器5会探测到后向散射光信号的变化。 When the infrared laser scanning trajectory intersects the vein, infrared detector 5 can detect changes in the scattered light signals to the rear. 红外探测器5可以直接接收后向散射光信号的变化并传递给控制单元8。 Infrared detector 5 can be received directly after the change in scattered light signal and transmitted to the control unit 8.

控制单元8的具体组成如图4所示。 In particular the control unit 8 is composed as shown in FIG. 其主要由微控制器MCU、 8位及以上模数转换器ADC和8位及以上数模转换器DAC等器件构成。 Mainly by the microcontroller MCU, 8-position and the above analog to digital converter ADC and DAC 8 DAC and other devices configured above. 一路ADC负责将探测信号输入MCU,另外两路DAC分别负责行扫描镜3、场扫描镜4的控制。 An ADC input signal is responsible for detecting MCU, two additional DAC responsible for line scanning mirrors 3, 4 of the vertical scanning mirror control. 红外激光器1、可见光激光器2的驱动电源也由MCU控制。 An infrared laser, visible laser driving power source 2 is also controlled by the MCU.

静脉血管轨迹的显示可以分为两种方式。 Vein trajectory display can be divided into two ways. 在第一种方式中,扫描探测和扫描显示两个过程分别进行,探测过程中扫描光扫描到静脉位置时,探测器对控制单元发出信号,后者记录当前扫描光点位置的坐标值,并依次保存。 In a first embodiment, the scanning probe scanning and display two processes separately, scanning light is detected during the scanning position to the vein, the detector signals the control unit, which records the current position coordinate values ​​of the scanning spot, and then click save. 之后开启可见光激光器,将之前存储的位置坐标值依次送给扫描器件的控制器,使可见光扫描光斑依次扫过上述坐标点,并重复扫描多次。 After the visible laser is turned on, the previously stored position coordinate value to the controller sequentially scanning device, the scanning spot visible light sequentially sweep the coordinate point, and repeatedly scanning a plurality of times. 由于人眼的视觉暂留特性,可见光扫描光斑会在静脉血管所在位置的皮表上显示出一条轨迹。 Because the human eye's persistence of vision characteristics, visible light scanning spot will show a trace on the skin surface location where the vein. 具体流程图如图5。 5 a detailed flowchart of FIG.

在第二种方式中,扫描探测和扫描显示两个过程同步进行,即在扫描探测过程中, 一旦探测到静脉血管的后向散射变化信号,立刻由控制单元开启可见光激光器,在该位置显示出一个可见光点,开启时间由光点大小和扫描速度而定。 In a second embodiment, the scanning probe scanning and display two processes simultaneously, i.e. during the scanning probe, the backscatter signal upon detecting a change to the vein, immediately visible laser opened by the control unit, showing the location a visible point, the spot size of the open time and the scan speed. 在红外激光扫描探测的同时,可见光激光将静脉血管所在位置逐点显示出来。 While infrared laser scanning probe, visible light laser vein location is displayed point by point. 这种方式要求红外激光要按光栅扫描方式形成二维扫描区域,扫描行间距要足够小。 This approach requires Yaoan raster scanning infrared laser is formed two-dimensional scanning region, scanning line spacing is small enough. 具体流程图如图6。 6 a detailed flowchart of FIG.

上述两种方式的结果都是在静脉血管所在位置显示出一条可见光激光光点的轨迹,医护人员可根据该轨迹判断静脉血管的准确位置。 Result of the above two methods are shown to a visible laser beam spot trajectory vein location, medical staff can determine the exact location of the vein from the track. 基于这种原理的双色激光扫描式医用静脉显示装置具有定位准确、显示清晰以及观察方便等优点。 Based on this principle Color Laser scanning the medical device having accurate positioning vein display, and shows a clear and easy to observe. 应用于临床可以有效减轻医患双方的负担,减小因操作失误而引起的医患纠纷。 Clinical application can effectively reduce the burden of both doctors and patients, reduce medical disputes due to operational errors caused.

Claims (6)

1. 一种双色激光扫描式医用静脉显示装置,其特征在于红外激光器(1)发出的红外激光经二向色性反射镜(7)反射,可见光激光器(2)发出的可见激光经全反射镜(6)反射后再透过二向色性反射镜(7)与所述红外激光组成共线光路,红外激光和可见激光组成的共线光束被行扫描镜(3)、场扫描镜(4)依次反射并扫描到待扫描皮肤区域(9),待扫描皮肤区域(9)上方设有红外探测器(5),红外激光器(1)、可见光激光器(2)、行扫描镜(3)、场扫描镜(4)、红外探测器(5)均由控制单元(8)控制,红外激光器(1)的扫描光扫描到静脉位置时,红外探测器(5)对控制单元(8)发出信号,并记录当前扫描光点位置的坐标值,开启可见光激光器(2),控制单元(8)按照记录的扫描光点位置的坐标值,使可见光扫描光斑依次扫过上述坐标点,并重复扫描多次;或者红外激光器(1)的扫描光扫描到静脉位置时 A laser-scan color display device of a medical intravenous, characterized in that the visible laser light by the total reflection mirror infrared laser infrared laser (1) emits emitted by two dichroic mirrors (7) reflected visible laser (2) (6) and then through reflection dichroic mirror (7) and the infrared laser light path collinear composition, consisting of an infrared laser, and visible laser beam is collinear line scanning mirror (3), the field scanning mirror (4 ) are sequentially reflected to be scanned and scans an area of ​​skin (9), an area of ​​skin to be scanned (9) is provided above the infrared detector (5), an infrared laser (1), visible laser (2), line scanning mirror (3), when the field scan mirror (4), infrared detector (5) by the control unit (8) control an infrared laser (1) to scan the optical scanning positions vein, infrared detector (5) sends a signal to the control unit (8) , and record the coordinates of the current position of the scanning spot, visible laser opening (2), the control unit (8) according to coordinate values ​​of the scanning spot position of the recording, visible light scanning spot sweeps the coordinate point sequence, and repeating the scan multiple or when an infrared laser (1) into the vein of a scanning optical scanning position; times 红外探测器(5)一旦探测到静脉血管的后向散射变化信号,立刻由控制单元(8)开启可见光激光器(2),在该位置显示出一个可见光点,在红外激光扫描探测的同时,可见光激光将静脉血管所在位置逐点显示出来。 Infrared detector (5) once the detected backscatter vein change signal immediately opened by the control unit (8) visible laser (2), exhibits a visible spot at that location, while the infrared scanning laser detection, visible laser vein location is displayed point by point.
2. 根据权利要求1所述的一种双色激光扫描式医用静脉显示装置,其特征在于:所述的红外激光器(l)是半导体激光器。 2. The display device according to one of the two-color laser scanning medical intravenous claim 1, wherein: said infrared laser (l) is a semiconductor laser.
3. 根据权利要求1所述的一种双色激光扫描式医用静脉显示装置,其特征在于:所述的可见光激光器(2)是发光波段为可见光波段的半导体激光器。 3. According to a color laser scanning according to claim 1 for medical vein display apparatus, wherein: said visible light laser (2) is a semiconductor laser emission wavelength band of visible light.
4. 根据权利要求1所述的一种双色激光扫描式医用静脉显示装置,其特征在于:所述的红外激光器(l)、可见光激光器(2)为两个分立的激光器,或是一个可在红外波段到可见光波段范围内调谐波长的可调谐激光器。 According to one of the claims 1 color laser scanning medical vein display apparatus, wherein: said infrared laser (L), visible laser (2) for the two separate lasers, or may be a tuned to infrared wavelengths in the visible wavelength range of tunable laser.
5. 根据权利要求1所述的一种双色激光扫描式医用静脉显示装置,其特征在于所述的行扫描镜(3)、场扫描镜(4)为一对检流计式扫描振镜,或是MEMS振镜或光电式扫描振镜。 According to one of the claims 1 color laser scanning vein display the medical device, wherein said row scanning mirror (3), the field scanning mirror (4) as a pair of galvanometer scanning galvanometer, or MEMS or optical galvanometer scanning galvanometer.
6. 根据权利要求1所述的一种双色激光扫描式医用静脉显示装置,其特征在于所述的红外探测器(5)为单个红外接收二极管或单个红外接收三极管,或是由它们组成的线阵或面阵。 6. According to a color laser scanning according to claim 1 vein display the medical device, wherein said infrared detector (5) for a single infrared receiving diode or triode single infrared receiver, or the line composed by them array or area array.
CN 200710156506 2007-11-06 2007-11-06 Dual-color laser scanning type medical vein display equipment CN100531671C (en)

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CN101897577A (en) * 2010-08-25 2010-12-01 北京伊籁麦吉科技有限公司 Animal fixing device having vein transillumination function
CN102764109A (en) * 2012-08-09 2012-11-07 武汉博激世纪科技有限公司 Vein viewing system
CN104720754A (en) * 2013-04-02 2015-06-24 林学芹 Vein observing device and power consumption reducing method thereof
CN104739370A (en) * 2013-12-31 2015-07-01 环达电脑(上海)有限公司 Electronic device with blood vessel identifying and positioning functions and blood vessel identifying and positioning method
CN206063133U (en) * 2016-07-02 2017-04-05 深圳市前海康启源科技有限公司 Arterography venography device

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