CN103222854A - Power-saving vein observation device - Google Patents
Power-saving vein observation device Download PDFInfo
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- CN103222854A CN103222854A CN2013101127077A CN201310112707A CN103222854A CN 103222854 A CN103222854 A CN 103222854A CN 2013101127077 A CN2013101127077 A CN 2013101127077A CN 201310112707 A CN201310112707 A CN 201310112707A CN 103222854 A CN103222854 A CN 103222854A
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Abstract
The invention belongs to medical auxiliary equipment, and discloses a power-saving vein observation auxiliary device. The device comprises a host and a vein observation desk, wherein the host comprises a light-emitting component and a control circuit; the light-emitting component comprises a light-emitting tube and a spotlight device; the control circuit comprises a flicker generation circuit controlling the light-emitting tube to work in a flicker light-emitting mode, and a flicker changeover switch controlling the light-emitting tube to be switched between flicker light emitting and continuous light emitting; and an output of the flicker generation circuit controls the light-emitting tube through a driving circuit. The device has the positive significances in reducing power consumption and radiation and prolonging the service life of the light-emitting tube, and reduces injuries to eyes of medical personnel.
Description
Technical field
The present invention relates to a kind of medical treatment device, be specifically related to a kind of auxiliary venous device of seeking when being used for venipuncture.
Background technology
It is the medical new product that occurs in recent years that finder (being called for short the vein finder) is assisted in venipuncture, adopt luminous tube to send HONGGUANG as light source, by shining the palm centre of the palm behind the optically focused, HONGGUANG sees through from palm, owing to HONGGUANG is easier to shine on the back of the hand through the muscular tissue of palm, and palm vein mobile kermesinus venous blood HONGGUANG is had very strong Absorption, make HONGGUANG be difficult to penetrate vein, so just be shown as at the palm back and under brighter HONGGUANG background, present the darker vein track of brightness, be convenient to the medical worker and observe and locate vein, accurately realize venipuncture, be applied in child's venipuncture occasion more.
Viewpoint according to prior art, because the physiological structure of palm is thicker,, realize venous is discerned for the HONGGUANG that guarantees luminous tube can penetrate palm muscle, then need luminous tube to have very high luminosity, it is enough big to make luminescence component shine the luminous flux of the centre of the palm.The luminous tube operating power of existing product often reaches about 20 volt-amperes, shortcomings such as but so big operating power causes the luminous tube power consumption big, and heating is serious, and working life is low, and because the luminous tube luminosity is very big, the HONGGUANG of Guo Louing can damage medical worker's eyes at work.This is a contradiction, one of the technique direction that solves this contradiction at present is to adopt the higher luminous tube of luminous efficiency, obtain enough luminosity with less operating power, and more advanced technology is to adopt more sensitive CCD photographic head to replace eyes, gather the light of palm back of the body transmission, on display screen, demonstrate image again, though this can reduce luminous tube brightness greatly, but technical sophistication, cost height, and need showing by display screen is on one side being observed and location venous will carry out venipuncture simultaneously the time, because operating point (the palm back of the body) and display screen be not at same position, operating just seems very not directly perceived.
Summary of the invention
Purpose of the present invention is open a kind of like this vein finder, and it can realize penetrating to realize the vein observation of HONGGUANG adversary palmaris meat with the luminous tube work power consumption of more power saving.
Through the actual use of vein finder is analyzed, even adopt the vein finder, observation and location to palm vein also can't just be finished quickly: from just beginning to observe many vein vestiges the whole palm back of the body, analyze and select wherein only vein to the medical worker, again this vein is accurately located, carry out venipuncture to the end, this needs a process.Particularly when the child uses, child regular meeting struggles lest fearing, and palm is touched, and this process time can be more of a specified duration.And existing vein finder is in this whole process, and intensive HONGGUANG is being shone always, has both caused the luminous tube power consumption big, and heating is serious, influences the life-span, also can cause more major injury to medical worker's eyes.The applicant has done some tests to this, venous is observed in the process of seeking in early stage, allow HONGGUANG carry out luminous with flashing mode, the flicker cycle of finding HONGGUANG is within the specific limits the time, do not influence observation and searching to palm vein, even when HONGGUANG brightness was low, flicker also made the easier nuance of noticing the object of observation of people.
According to above-mentioned analysis, the present invention improves the technology of existing vein finder, comprise the main frame of existing vein finder and be used to place palm and carry out the vein observation platform that vein is observed, main frame includes luminescence component and control circuit, and luminescence component includes luminous tube and beam condensing unit; Improvement project is: control circuit includes one and is used to control luminous tube and carries out the flicker generation circuit of work and one with macroscopic flicker illumination mode and be used to control luminous tube in flicker illumination mode and the flicker change-over switch of switching between the illumination mode continuously, and the work of luminous tube is controlled in the output that circuit takes place in flicker by drive circuit.
On operation, the present invention is divided into two stages with the entire work process of vein finder: promptly vein is observed sought the penetration phase that localized observation stage and later stage puncture to vein early stage; In the observation stage, the flicker change-over switch switches in the flicker illumination mode with luminous tube and carries out work; In penetration phase, the flicker change-over switch switches in continuous illumination mode with luminous tube and carries out work.
The luminous scintillation pulse of control luminous tube flicker of circuit output takes place in flicker, square-wave pulse preferably, and its dutycycle also is glimmer dutycycle when luminous of luminous tube, (light period accounts for the ratio of whole pulse period) determined the effect of the present invention's economize on electricity.Over half in order to reach economize on electricity, dutycycle can be decided to be less than 0.5, the cycle of the pulse period when promptly luminous when not luminous, but light period when too small dyschezia to observe, suitable, can fix between 0.2 to 0.4.And the cycle of whole scintillation pulse, long then the flicker can influence work efficiency slowly, and too short then flicker too hurriedly makes eyestrain easily, uses proper between 0.3 second to 1.5 seconds, especially optimum between 0.5 second to 1 second according to reality.
The use of this vein finder, in the observation stage, promptly begin palm is placed on the observation platform just, when HONGGUANG is sent in the work of startup luminescence component, the flicker change-over switch switches in the flicker illumination mode with luminous tube, circuit working takes place in flicker, make luminous tube luminous with the working method of macroscopic flicker luminous (also promptly luminous at interval), such as the HONGGUANG of sending 0.25 second width 1 second cycle the inside, (being that dutycycle is 0.25), this flicker is luminous to be enough to allow the medical worker observe many vein vestiges from the whole palm back of the body, select again to determine wherein only vein, and this vein is positioned.And the penetration phase of in the end carrying out venipuncture, if luminous tube glimmers luminous then can impact puncture working, so the flicker change-over switch switches in continuous illumination mode with luminous tube, make the luminous tube continous-stable luminous, the use habit that meets the medical worker allows the medical worker carry out venipuncture under steady and audible background.Obviously, beginning to start finder in this observation stage before puncture,, luminous tube works because carrying out interval with the flicker illumination mode always, so can reduce the luminous tube power consumption, reduce heating, simplify the luminous tube heat abstractor, and prolong the luminous tube working life.
In existing vein finder, generally also have light adjusting circuit, the brightness of red light-emitting pipe is regulated.This light adjusting circuit generally adopts the mode of pulsewidth modulation (being PWM), and this in fact also is a kind of impulse circuit of EDM Generator of Adjustable Duty Ratio.But this light adjusting circuit is diametrically opposite with flicker generation circuit of the present invention, light adjusting circuit need avoid occurring the appreciable flicker of naked eyes, so all the pulse frequency calibration is got very high, generally at hundreds of, a few KHz even more than several ten thousand hertz, be light period below more than 0.00 seconds, what eyes were seen is the luminous continuously of a kind of meansigma methods.And flicker generation circuit of the present invention is specially to allow luminous tube work in the mode of macroscopic flicker luminous (also promptly luminous at interval), allows luminous tube quit work at luminous interval, to reduce power consumption and heating.
In addition, the applicant finds that also glimmer eyes when luminous of luminous tube have higher identification sensitivity to the nuance of object observing, (this point is just opposite with conventional understanding, may be because flicker is bright when dark when making the image of the object of observation, eyes unconsciously increase pupil in order to see the object of observation clearly when dark, then when the object of observation brightens suddenly again pupil also have little time to dwindle caused), the luminous tube brightness ratio is continuous when luminous even also promptly glimmer reduces when luminous, can effectively observe recognizing vein too.So as further improvement, the flicker change-over switch connects and control the work of light adjusting circuit simultaneously, when the flicker change-over switch starts flicker generation circuit, turn down the brightness of luminous tube simultaneously by light adjusting circuit, (approximately can turn down 20%-30% brightness).This improvement makes and just begins luminous tube and during luminance, with luminous than low-light level, further reduce power consumption in flicker, and when luminance continuously, recovers normal higher brightness, makes the medical worker can be more stable and carry out venipuncture under the background more clearly.
The present invention is divided into two stages with the work process of vein finder, make luminous tube switch in the flicker luminance in observation searching and location venous stage, realize the vein observation with lower luminous tube power consumption, has the reduction power consumption, reduce heating, prolong the positive effect in luminous tube life-span, and reduce medical worker's eye injury.And, luminous tube is switched in continuous luminance in the stage of carrying out venipuncture, and make the medical worker under stable illumination clearly, carry out venipuncture, more meet use habit, do not influence puncture working.
Description of drawings
Fig. 1 is the structural representation of the auxiliary finder of venipuncture.
Fig. 2 is the circuit block diagram of luminous tube relevant control circuit of the present invention.
Fig. 3 is that the circuit theory diagrams of circuit take place a kind of flicker the of the present invention.
The specific embodimentBelow with reference to the accompanying drawings, the present invention will be described.
Fig. 1 is the structural representation of the auxiliary finder of existing venipuncture.It comprises the main frame 1 of vein finder and is used to place palm above the main frame 1 carries out the vein observation platform 2 that vein is observed, and main frame 1 inside is provided with control circuit 3 and power supply 4.Control circuit 3 includes PWM light adjusting circuit and the drive circuit that is used for luminous tube is carried out brightness regulation; Control circuit 3 and control panel cooperating are with the work of controlling this device and the brightness of luminous tube is regulated.Main frame 1 inside is provided with the luminescence component of being made up of luminous tube and beam condensing unit 5, can send high-intensity HONGGUANG by observation platform 2 upward.Have the light-passing board of transparent some product of light-passing board 6(to be protruding upward semi-circular on the observation platform 2) and separable light barrier 7, have the size loophole 8 suitable in the middle of the light barrier 7 with the centre of the palm, HONGGUANG can only be penetrated from loophole 8, and other positions are all blocked by light barrier.Generally also be provided with on the observation platform 2 and be used to discern palm and whether be placed on inductive switch 10 above the light barrier 7, the work of inductive switch 10 control luminescence components, when inductive switch 10 is not sensed palm and is placed on above the light barrier 7, luminescence component can luminous work, and HONGGUANG is penetrated outward when avoiding not having palm.During use, the palm 9 that needs venipuncture is pressed in downwards above the light barrier 7 of observation platform 2, inductive switch 10 recognizes this state, start-up circuit makes luminescence component send HONGGUANG, HONGGUANG is radiated at by the loophole on light-passing board 6 and the light barrier 8 on the palm of the hand of palm, just can clearly show venous locations on the back of the hand of palm, is convenient to the medical personnel and observes and locate vein, realize venipuncture accurately, the misery of convenient work and minimizing infant.
Fig. 2 is the circuit block diagram of luminous tube relevant control circuit of the present invention.Wherein light adjusting circuit, drive circuit and luminous tube belong to prior art, are used to make the red light-emitting pipe that is installed in the luminescence component the inside to send the high brightness HONGGUANG of adjustable brightness.And circuit takes place in flicker, flicker change-over switch K is circuit and the parts that the present invention increases newly.A concrete circuit such as Fig. 3 of implementing of these circuit.Instant basic circuit 555 grades of IC1 are formed square-wave oscillator circuit and as flicker circuit are taken place, and the high level period of the square-wave pulse of its output and low-level period are by capacitor C, resistance R 1 and R2 decision.According to the operation principle of 555 time base circuits as can be known, when 555 are in charging, charge cycle T1=0.693(R1+R2) C=0.693CR1+0.693CR2, at this moment the 3rd foot is output as high level, make luminous tube not luminous (anti-phase control) by drive circuit, promptly charge cycle is dark period T1.When 555 are in discharge, its discharge cycle T2=0.693CR2, at this moment the 3rd foot is output as low level, makes luminous tube luminous by drive circuit, and promptly discharge cycle T2 is a light period.Because R1 is non-vanishing, thus T2 always less than T1, also be light period always less than dark period, so light period to the dutycycle of whole pulse period less than 0.5, realize that economize on electricity is more than 50%.A kind of concrete scheme, by choosing the value of capacitor C and resistance R 1 and R2, (get 1 microfarad such as C, R1 gets 600K, R2 gets 300K), with discharge cycle also is that light period T2 was made as about 0.2 second, and charge cycle also is that dark period T1 is about 0.6 second, and the then whole pulse period is 0.8 second, the dutycycle of light period is 0.25, in the flicker luminance, it is about 75% that luminous tube economizes on electricity, and is more satisfactory scheme.
Flicker change-over switch K is used to control luminous tube and switches between flicker illumination mode and continuous illumination mode.As shown in Figure 3, when flicker change-over switch K was closed, power on circuitry work took place in flicker, and its output scintillation pulse signal carries out work by drive circuit control luminous tube with the flicker illumination mode.When flicker change-over switch K disconnected, the circuit deenergization took place and quits work in flicker, does not export the scintillation pulse signal, so luminous tube is with continuous illumination mode work.
The drive circuit that the required drive circuit of circuit can utilize original light adjusting circuit takes place in flicker, i.e. both shared drive circuits, as shown in Figures 2 and 3.Also can be with an independent driving circuits voluntarily, come the driven for emitting lights plumber to do jointly with the drive circuit of light adjusting circuit, this can increase circuit cost certainly.
As further improvement, flicker change-over switch K connects and controls the work of light adjusting circuit simultaneously, make light adjusting circuit and the interlock of flicker change-over switch, circuit takes place when the flicker change-over switch starts flicker, luminous tube is switched when the work of flicker illumination mode, turn down the brightness of luminous tube simultaneously by light adjusting circuit, (approximately can turn down 20%-30% brightness) further reduces power consumption; And circuit takes place when K disconnects flicker, and when luminous tube is in continuous luminance, losing control simultaneously to light adjusting circuit, luminous tube recovers normal higher brightness, makes the medical worker can be more stable and carry out venipuncture under the background more clearly.
Flicker change-over switch K can be arranged on the host computer control panel, switches the luminous and continuous illumination mode of flicker by operation manually as required.As improvement, flicker change-over switch K is installed in below the vein observation platform 2, and is subjected to carry out the control of the palm pressure of vein observation.Such as, flicker change-over switch K adopts normally closed pressure switch or travel switch, is installed in below the vein observation platform 2, i.e. and the parts 11 of Fig. 1 reach the surface of observation platform 2 by link gear, can accept the compressing of light barrier 7.When palm 9 is being with light barrier 7 to be placed on above the observation platform 2 and when firmly down not pressing, at this moment the pressure of light barrier 7 is not enough, flasher K closure, luminous tube is luminous for flicker, observes the vein that the location palm is carried on the back for the medical worker; When accurate location vein, when preparing puncture, the medical worker can be with palm 9 a little firmly toward pressing down, and then light barrier 7 is to the link gear of lower compression flicker change-over switch K, disconnect the contact of K, luminous tube is switched to luminous state continuously,, use more convenient without manually-operated flicker change-over switch.
In addition, flicker generation circuit of the present invention also can adopt other circuit such as digital circuit or application-specific integrated circuit even adopt microprocessor MCU to realize.At this moment flicker generation circuit can combine with light adjusting circuit, realizes with a slice microprocessor MCU or mask application-specific integrated circuit.Though at this moment circuit structure has had change to the eye, in the IC the inside, still include the functional module that circuit takes place for light adjusting circuit and flicker, substantially be the same with the present invention.
Claims (8)
1. an electricity-saving type vein finder comprises main frame and vein observation platform, and it is characterized in that: main frame includes luminescence component and control circuit, and luminescence component includes luminous tube and beam condensing unit.
2. a kind of electricity-saving type vein finder according to claim 1, it is characterized in that: described control circuit includes one and is used to control luminous tube and carries out the flicker generation circuit of work and one with macroscopic flicker illumination mode and be used to control luminous tube in flicker illumination mode and the flicker change-over switch of switching between the illumination mode continuously, and the output of flicker generation circuit is controlled luminous tube by drive circuit.
3. a kind of electricity-saving type vein finder according to claim 2 is characterized in that: vein finder of the present invention, vein to be observed the localized observation stage, and the flicker change-over switch switches in the flicker illumination mode with luminous tube and carries out work; In the penetration phase that vein is punctured, the flicker change-over switch switches in continuous illumination mode with luminous tube and carries out work.
4. a kind of electricity-saving type vein finder according to claim 2 is characterized in that: the cycle of the scintillation pulse of circuit output takes place in flicker, between 0.3 second to 1.5 seconds; As scheme more suitably, the cycle is between 0.5 second to 1 second.
5. a kind of electricity-saving type vein finder according to claim 2 is characterized in that: the scintillation pulse that circuit output takes place in flicker is a square-wave pulse; The dutycycle of its light period is less than 0.5; As scheme more suitably, dutycycle is between 0.2 to 0.4.
6. according to the described a kind of electricity-saving type vein finder of one of claim 2 to 5, it is characterized in that: described flicker change-over switch is installed in below the vein observation platform, and the pressure that is subjected to carry out the palm that vein observes is controlled.
7. according to the described a kind of electricity-saving type vein finder of one of claim 2 to 5, it is characterized in that: described control circuit also includes light adjusting circuit, the flicker change-over switch connects and controls the work of light adjusting circuit simultaneously, when the flicker change-over switch starts flicker generation circuit working, turn down the brightness of luminous tube simultaneously by light adjusting circuit.
8. according to the described a kind of electricity-saving type vein finder of one of claim 2 to 7, it is characterized in that: described control circuit also has light adjusting circuit, and circuit takes place in flicker and light adjusting circuit combines, and is realized by a slice MCU microprocessor or application-specific integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112707.7A CN103222854B (en) | 2013-04-02 | 2013-04-02 | Power-saving vein observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112707.7A CN103222854B (en) | 2013-04-02 | 2013-04-02 | Power-saving vein observation device |
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| Publication Number | Publication Date |
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| CN103222854A true CN103222854A (en) | 2013-07-31 |
| CN103222854B CN103222854B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310112707.7A Expired - Fee Related CN103222854B (en) | 2013-04-02 | 2013-04-02 | Power-saving vein observation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137587A (en) * | 2020-09-25 | 2020-12-29 | 杨磊 | LED medical imaging instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178340B1 (en) * | 1998-08-24 | 2001-01-23 | Eduardo Svetliza | Three-dimensional infrared imager for subcutaneous puncture and study of vascular network |
| US20050257795A1 (en) * | 2004-05-20 | 2005-11-24 | Yu Hsiu-Chen | Method and apparatus for locating superficial veins or specific structures with a LED light source |
| CN102379699A (en) * | 2011-09-02 | 2012-03-21 | 南京麦柯物联网科技有限公司 | Method for improving definition of body surface veins and vein puncture observation instrument |
| CN102599890A (en) * | 2012-03-12 | 2012-07-25 | 中国人民解放军第三〇九医院 | Portable far-infrared limb vascular puncture auxiliary system |
| CN202446063U (en) * | 2012-01-11 | 2012-09-26 | 李承恩 | injection aids |
-
2013
- 2013-04-02 CN CN201310112707.7A patent/CN103222854B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178340B1 (en) * | 1998-08-24 | 2001-01-23 | Eduardo Svetliza | Three-dimensional infrared imager for subcutaneous puncture and study of vascular network |
| US20050257795A1 (en) * | 2004-05-20 | 2005-11-24 | Yu Hsiu-Chen | Method and apparatus for locating superficial veins or specific structures with a LED light source |
| CN102379699A (en) * | 2011-09-02 | 2012-03-21 | 南京麦柯物联网科技有限公司 | Method for improving definition of body surface veins and vein puncture observation instrument |
| CN202446063U (en) * | 2012-01-11 | 2012-09-26 | 李承恩 | injection aids |
| CN102599890A (en) * | 2012-03-12 | 2012-07-25 | 中国人民解放军第三〇九医院 | Portable far-infrared limb vascular puncture auxiliary system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137587A (en) * | 2020-09-25 | 2020-12-29 | 杨磊 | LED medical imaging instrument |
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| CN103222854B (en) | 2014-09-24 |
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Address after: 315700 Xiangshan, Zhejiang, Dandong street, Xiangshan Port Road, No. 79, No. Applicant after: Xu Zhiqiang Address before: 515041 Guangdong province Shantou Jinping District New Road No. 5 room 402 two Applicant before: Xu Zhiqiang |
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Effective date of registration: 20170120 Address after: 510145 Guangdong city of Guangzhou province Liwan District, No. 3 room 205 Patentee after: Guangzhou Yanda Medical Technology Co Ltd Address before: 315700 Xiangshan, Zhejiang, Dandong street, Xiangshan Port Road, No. 79, No. Patentee before: Xu Zhiqiang |
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Granted publication date: 20140924 Termination date: 20190402 |