CN2728426Y - Medical vein detecting device - Google Patents
Medical vein detecting device Download PDFInfo
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- CN2728426Y CN2728426Y CN 200420072567 CN200420072567U CN2728426Y CN 2728426 Y CN2728426 Y CN 2728426Y CN 200420072567 CN200420072567 CN 200420072567 CN 200420072567 U CN200420072567 U CN 200420072567U CN 2728426 Y CN2728426 Y CN 2728426Y
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- infrared
- near infrared
- infrared ray
- display
- window
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Abstract
The utility model provides a medical vein detecting device, which comprises a housing, a near infrared ray illuminating source, an infrared signal acceptor that can accept the near infrared, a signal converter and a display; one flank of the housing is provided with an infrared window that can be penetrated by the near infrared; the near infrared ray illuminating source and the infrared signal acceptor are all arranged in the housing, and are faced to the infrared window; the near infrared ray illuminating source and the infrared signal acceptor are crossed at the external side of the infrared window; the near infrared ray generated from the near infrared ray illuminating source is ejaculated from the infrared window, and is returned back from the infrared window after acted by the exterior body; the near infrared is received by the infrared signal acceptor, and a pair of light emitting receiving units are formed; the infrared signal acceptor, the signal converter and the display are connected orderly; the near infrared signal is received by the infrared signal acceptor, and is displayed by the display through the photoelectric conversion by the signal converter. The utility model has high depth of investigation and sensibility, small volume and simple structure.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, especially relates to a kind of medical vein sniffer that helps to find blood vessel when intravenous injection.
Background technology
Intravenous injection is widely used clinically, plays an important role in treatment disease and redemption patient life.But because some patient self, as fat, the colour of skin is dark and blood vessel is tiny etc., causes when intravenous injection, is difficult to judge the accurate position of venous patient, brought inconvenience for medical worker and patient, even missed the opportunity of treatment sometimes.
The patent No. is 03242235.0, and the Chinese patent that name is called " venipuncture inducer " discloses a kind of venipuncture inducer.It comprises by near-infrared discharger, near-infrared reception device, monitor and the vein blood vessel imaging system that power supply is formed.What but this guided ware adopted is the direct sunshine irradiation, because the surface light reflection can cause the loss of contrast, has influenced investigation depth and sensitivity.In addition, the imaging system of this guided ware is too complicated, the near infrared ray receptor is the high video camera of resolving of black and white low-light (level) that 800nm infrared ray colour filter is housed before the optical lens, the outfan of near infrared ray receptor is connected with monitor, the other end is connected with power supply, the input of monitor is connected with the near infrared ray receptor, and the other end is connected with power supply.This guided ware exist cost height, volume big, use shortcoming such as inconvenience.
Summary of the invention
It is not good that the purpose of this utility model is to solve in the prior art investigation depth and sensitivity, and imaging system complicated problems too, and provide a kind of investigation depth and sensitivity to improve, and volume is small and exquisite, and is simple in structure, medical vein sniffer easy to use.
The purpose of this utility model is achieved in that a kind of medical vein sniffer, it is characterized in that, described device comprises shell, near infrared ray light source, can accept near infrared infrared signal receiver, signal adapter and display; The bottom surface of described shell is provided with and can sees through near infrared infrared window, described near infrared ray light source and infrared signal receiver all are arranged in the described shell, and all be provided with towards described infrared window, and it is crossing in the described infrared window outside, the near infrared ray that described near infrared ray light source is sent penetrates through described infrared window, can be returned by described infrared window after the exterior object effect, and received by described infrared signal receiver, thereby constitute a pair of luminous-receiving element; Described infrared signal receiver, signal adapter and display link to each other in proper order, and the near infrared signal that infrared signal receiver is received after signal adapter carries out opto-electronic conversion, can be shown by display.
Described near infrared ray is meant that wavelength is the light wave of 680-2500nm.
Described near infrared ray light source and infrared signal receiver are isolated mutually in described shell and are provided with axisymmetricly mutually; Described infrared window comprises two, is separately positioned on the below of near infrared ray light source and infrared signal receiver.
Described luminous-receiving element can have three pairs, wherein two pairs received signal is used for the calculating of measurement result as the reference signal.
Described infrared remote receiver can be a diode or triode to the near infrared ray sensitivity.
Described infrared remote receiver also can be the complex array formula photoelectric sensor to the near infrared ray sensitivity.
Described display is arranged on the outside of described shell.
Described display can be the luminous tube of a visible light, as a light emitting diode of the same colour or pleochroic.
Described display also can be liquid crystal or light emitting diode matrix.
This utility model has utilized the principle of back scattered light irradiation.In use, infrared window is close to human body skin, because tissue has certain transmission capacity near infrared ray, the near infrared ray that sends by the near infrared ray light source, by infrared window, see through skin surface and after blood vessel scattering high and the refraction of human body deep layer skin, return the near-infrared absorbing rate, received by infrared signal receiver, after the photosignal conversion, show by display.
This utility model is owing to utilize the back scattered light of transillumination to do light source, and the loss of contrast of having avoided the surface light reflection to be caused can improve the sensitivity to the light absorption object detection, is specially adapted to the detection of human vas.Because it is more excellent than the reflected light probe technique degree of depth that back scattered light is surveyed, be more suitable for being used for fat patient.The detecting head of this device can directly overlay on the search coverage, and surround lighting is little to its interference.Therefore investigation depth of the present utility model and sensitivity is than direct sunshine irradiation height, and it is little to have a volume, and cost is low, and characteristic of simple easy to carry and use more can be made pen type or littler ornament external form.
Description of drawings
Fig. 1 is the overall structure generalized section of an embodiment of medical vein sniffer of the present utility model;
Fig. 2 is the near infrared ray light source of an embodiment of medical vein sniffer of the present utility model and the structural representation of infrared signal receiver;
Fig. 3 (a) is the theory diagram of signal adapter of an embodiment of medical vein sniffer of the present utility model;
Fig. 3 (b) is the physical circuit connection layout of the signal adapter shown in Fig. 3 (a);
Fig. 4 is the user mode sketch map of medical vein sniffer of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 4, in an embodiment of the present utility model, the medical vein sniffer comprises shell 5, near infrared ray light source 3, infrared signal receiver 2, signal adapter and display 4.
Near infrared ray the light source 3 and infrared signal receiver 2 of near infrared ray sensitivity is separately positioned in the mutual isolated cell in the described shell 5 lays respectively at the top of two infrared windows 61,62.Described near infrared ray light source 3 and infrared signal receiver 2 are provided with in described shell mutually axisymmetricly, and intersect in the described infrared window outside.
Described infrared remote receiver 2 can be a diode or triode to the near infrared ray sensitivity, also can be the complex array formula photoelectric sensor to the near infrared ray sensitivity.
Described display 4 is arranged on the outside of detecting head shell 5, can be the luminous tube of a visible light, as a light emitting diode of the same colour or pleochroic, also can be liquid crystal or light emitting diode matrix.
In use, this device is directly overlayed human body surface, the near infrared ray that sends by near infrared ray light source 3, by infrared window 61, see through skin surface 8 after after blood vessel 1 scattering high and 7 refractions of human body deep layer skin, return by infrared window 62, by infrared signal receiver 2 receptions to the near infrared ray sensitivity to the near-infrared absorbing rate, after the photosignal conversion, by display 4 display result that can show visible light.
Shown in Fig. 2 and Fig. 3 (a), medical vein sniffer of the present utility model can comprise three couples of luminous-receiving element: L1-S1, L2-S2, L3-S3.The meansigma methods of the received signal of S1 and S3 can be used as reference signal, and the difference of S2 signal and reference signal is represented the difference of absorptivity; The difference of S2 signal and reference signal can change a frequency signal into, such as 1-10Hz removes driving display 4; Utilize display 4 luminous intensity, frequency or change in color to show the result who surveys.Display 4 can as a pleochroic light emitting diode, change color with a simple luminous tube on certain frequency fault value; As infrared remote receiver is complex array formula photoelectric sensor to the near infrared ray sensitivity, also can be liquid crystal or light emitting diode matrix.
Be depicted as a physical circuit connection layout of the F/V part among Fig. 3 (a) as Fig. 3 (b), adopted LM331 model chip, belong to the prior art part, do not do detailed description at this.
Claims (8)
1. a medical vein sniffer is characterized in that, described device comprises shell, near infrared ray light source, can accept near infrared infrared signal receiver, signal adapter and display; The bottom surface of described shell is provided with and can sees through near infrared infrared window, described near infrared ray light source and infrared signal receiver all are arranged in the described shell, and all be provided with towards described infrared window, and it is crossing in the described infrared window outside, the near infrared ray that described near infrared ray light source is sent penetrates through described infrared window, can be returned by described infrared window after the exterior object effect, and received by described infrared signal receiver, thereby constitute a pair of luminous-receiving element; Described infrared signal receiver, signal adapter and display link to each other in proper order, and the near infrared signal that infrared signal receiver is received after signal adapter carries out opto-electronic conversion, can be shown by display.
2. medical vein sniffer according to claim 1 is characterized in that, described near infrared ray light source and infrared signal receiver are isolated mutually in described shell and be provided with axisymmetricly mutually; Described infrared window comprises two, is separately positioned on the below of near infrared ray light source and infrared signal receiver.
3. medical vein sniffer according to claim 1 and 2 is characterized in that, described luminous-receiving element can have three pairs, wherein two pairs received signal is used for the calculating of measurement result as the reference signal.
4. medical vein sniffer according to claim 1 and 2 is characterized in that, described receptor can be a diode or triode to the near infrared ray sensitivity.
5. medical vein sniffer according to claim 1 and 2 is characterized in that, described receptor also can be the complex array formula photoelectric sensor to the near infrared ray sensitivity.
6. medical vein sniffer according to claim 1 is characterized in that described display is arranged on the outside of described shell.
7. according to claim 1 or 6 described medical vein sniffers, it is characterized in that described display can be the luminous tube of a visible light.
8. according to claim 1 or 6 described medical vein sniffers, it is characterized in that described display also can be liquid crystal or light emitting diode matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072567 CN2728426Y (en) | 2004-08-12 | 2004-08-12 | Medical vein detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072567 CN2728426Y (en) | 2004-08-12 | 2004-08-12 | Medical vein detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2728426Y true CN2728426Y (en) | 2005-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072567 Expired - Fee Related CN2728426Y (en) | 2004-08-12 | 2004-08-12 | Medical vein detecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2728426Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096794A (en) * | 2010-03-27 | 2013-05-08 | 尼普洛株式会社 | Blood sampling device |
| 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 |
| CN107233141A (en) * | 2017-07-24 | 2017-10-10 | 上海市第人民医院 | A kind of tail vein injection auxiliary warming temperature control, light-guiding system |
| CN109171780A (en) * | 2018-10-10 | 2019-01-11 | 宝鸡市中医医院 | A kind of medical visiting pen |
-
2004
- 2004-08-12 CN CN 200420072567 patent/CN2728426Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096794A (en) * | 2010-03-27 | 2013-05-08 | 尼普洛株式会社 | Blood sampling device |
| CN103096794B (en) * | 2010-03-27 | 2015-08-19 | 尼普洛株式会社 | Blood collection device |
| 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 |
| 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 |
| CN107233141A (en) * | 2017-07-24 | 2017-10-10 | 上海市第人民医院 | A kind of tail vein injection auxiliary warming temperature control, light-guiding system |
| CN107233141B (en) * | 2017-07-24 | 2023-06-06 | 上海市第一人民医院 | Auxiliary warm keeping and temperature controlling and light guiding system for intravenous injection of rat tail |
| CN109171780A (en) * | 2018-10-10 | 2019-01-11 | 宝鸡市中医医院 | A kind of medical visiting pen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050928 Termination date: 20100812 |