CN101773383B - Method for detecting position of radial artery - Google Patents
Method for detecting position of radial artery Download PDFInfo
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- CN101773383B CN101773383B CN201010120453XA CN201010120453A CN101773383B CN 101773383 B CN101773383 B CN 101773383B CN 201010120453X A CN201010120453X A CN 201010120453XA CN 201010120453 A CN201010120453 A CN 201010120453A CN 101773383 B CN101773383 B CN 101773383B
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Abstract
The invention discloses a method for detecting the position of a radial artery, which relate to the field of detecting positions of arteries and solve the problem that the position of the radial artery detected by the existing method for detecting the position of the radial artery is inaccurate. The device comprises an imaging module and a lighting module, wherein the imaging module images an imaging surface of a probe array; the lighting module provides an auxiliary light source for the imaging module; and a signal output end of the imaging module is connected with a signal input end of a signal processing and displaying module. The method comprises the following steps of: closely contacting detection surface of the probe array with a wrist skin; during a set time period, continuously imaging the lateral surface of the probe array; comparing all the acquired images; analyzing discrete points formed by detection ends of all probes in each image; searching the discrete points having the maximum displacement changes; and determining the probes in the probe array, which correspond to the discrete points having the maximum displacement changes, and the position of the wrist skin contacted by the probes is the position of the radial artery. The device and the method are suitable for occasions for detecting the position of the radial artery.
Description
Technical field
The present invention relates to the artery position detection range.
Background technology
Radial artery injection is an a kind of important medical procedure of importing blood medicinal liquids such as (or) anesthesia to patient.The radial artery puncturing technology also is one of important channel of medical science chemical examination, is usually used in the collection of patient artery blood gas analysis specimen, the blood-letting treatment of polycythemia of newborn, the aspects such as exchange transfusion of hyperbilirubinemia of newborn.
Radial artery is a brachial artery branch, between brachioradialis and pronator ters, descending along forearm oar side companion radial nerve,superficial, going between brachioradialis tendon and flexor carpi radialis muscle tendon above the radiocarpal joint, the artery position table is shallow, radial artery goes to the back of the hand through the processus styloideus radii far-end, wears the first metacarpal bone gap to the dark face of palm, coincide into deep palmar arch with metacarpal artery,volar,deep.At the processus styloideus radii facies palmaris, radial artery branch bank is in different directions, herein radial artery diameter average out to 0.27 (0.22～0.23) cm.
By the anatomic characteristic of above-mentioned radial artery as can be known, radial artery pulse wider range is difficult for the location.At present, medical personnel mainly determine the position of radial artery by the finger fingertip digital palpation for examination of trauma, and the dependence experience is selected the inserting needle position.Because the finger contact area is big, its sensitivity is not high, thereby causes the inserting needle success rate to reduce, and brings very big misery to the patient.Hospital presses for a kind of intelligent easy measuring instrument that can accurately indicate position of radial artery.
It seems from existing research situation, " pulse detection method, artery position detection method and the pulse detecting device " of publication number: CN1243425A proposes a kind of method that detects position of radial artery, is to detect artery position according to the pulse wave detector that flows through the blood flow detection pulse wave of tremulous pulse peripheral vessels.The polarity of the pulse wave of the tremulous pulse peripheral vessels that detection goes out in a plurality of position probing of wrist portion, anti-phase from this polarity or be in position the anti-phase process and begin position range till return original polar position, can detect and be positioned near tremulous pulse and surround the position of the tremulous pulse at the arteriolar substantial middle position around it.This method does not provide the clear and definite position of tremulous pulse inserting needle, and concerning medical personnel, poor operability can not solve the low difficult problem of radial artery inserting needle success rate in the practical operation.
Summary of the invention
The present invention is in order to solve the inaccurate problem of the detected position of radial artery of existing position of radial artery detection method, thereby proposes a kind of position of radial artery detection method.
A kind of position of radial artery detection method, it is based on the realization of position of radial artery checkout gear: described position of radial artery checkout gear comprises position of radial artery detecting module, image-forming module and signal processing and display module, described position of radial artery detecting module comprises lighting module and probe array, described probe array is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together; Image-forming module carries out imaging to the imaging surface of probe array, and lighting module provides secondary light source for image-forming module; The signal output part of described image-forming module is connected with the signal input part of signal processing and display module, and N is less than 100 integer greater than 5;
It is realized by following steps:
Step 1, the test surface of probe array is closely contacted wrist skin, and plane, described probe array place is vertical with orientation arm, described probe array is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together;
The lateral image of all probe arrays that step 3, contrast step 2 obtain, the discrete point that the end of probe of all probes in every width of cloth image forms is analyzed, search the discrete point of change in displacement maximum, determine the probe in the probe array of discrete point correspondence of described change in displacement maximum then, the position of the wrist skin of described probe contact is position of radial artery.
Beneficial effect: the present invention with the vertical closely contact of probe array wrist skin, carries out imaging by image-forming module in use, determines and shows the position of radial artery accurately by signal processing and display module then, and then finish down the pin operation.
Description of drawings
Fig. 1 is a structural representation of the present invention; Fig. 2 is the structural representation of the specific embodiment of the invention two; Fig. 3 is the sketch map of imaging constantly of the T1 described in the specific embodiment one; Fig. 4 is the sketch map of imaging constantly of the T2 described in the specific embodiment one, and Fig. 5 is the structural representation of probe described in the specific embodiment one.
The specific embodiment
The specific embodiment one, this specific embodiment is described in conjunction with Fig. 1, the position of radial artery checkout gear, it comprises position of radial artery detecting module 1, image-forming module 2 and signal processing and display module 3, described position of radial artery detecting module 1 comprises lighting module 1-1 and probe array 1-2, described probe array 1-2 is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together; The imaging surface of 2 couples of probe array 1-2 of image-forming module carries out imaging, and lighting module 1-1 provides secondary light source for image-forming module 2; The signal output part of described image-forming module 2 is connected with the signal input part of signal processing and display module 3, and N is less than 100 integer greater than 5.
The structure of the probe described in the described probe array 1-2 of present embodiment as shown in Figure 5, described probe is made up of feeler lever 1-2-1, spring 1-2-2 and probe overcoat 1-2-3, spring 1-2-2 is positioned at probe overcoat 1-2-3, the end of feeler lever 1-2-1 stretches in the described probe overcoat 1-2-3, and the end of described feeler lever 1-2-1 contacts with spring 1-2-2.The afterbody of the feeler lever 1-2-1 of N root probe is fixed together, and forms probe array 1-2.
It can be subjected to displacement variation according to the vibration of tremulous pulse the internal structure decision of probe.Position of radial artery is with respect to part on every side, its vibration displacement maximum.As shown in Figure 3 and Figure 4, establishing the initial moment is T1, this moment probe the position as shown in Figure 3, the A place is the radial artery position, curve 31 is the position contour curve of probe array.Fig. 4 is the T2 location drawing of probe array constantly, and comparison diagram 3 is the change in displacement maximum at position of radial artery A place as can be seen.With this as judging radial artery position accurately.
Light source is the key factor that influences image-forming module 2 inputs, and it directly influences the quality and the effect of input data.When the contact of visiting a burst of row 1-2 middle probe contacted the skin at radial artery place, without any light, common photographic head can't obtain any image in the annular seal space of its intelligentized miniature instrument.Therefore, the effect of lighting module is to provide light source for follow-up blur-free imaging.Since there is not general machine vision luminaire, thus at specific application example, can select relevant lighting device, to reach the optimal imaging effect.
The radiation modality of lighting module has: illumination dorsad, front illumination, structured light and strobe light illumination etc.Wherein, illumination is that measured object is placed between light source and the camera dorsad, and its advantage is the image that can obtain high-contrast; Front illumination is the homonymy that light source and camera are positioned at measured object, and this mode is convenient to install; Structured Illumination is that grating or line source etc. is projected on the measured object, according to the distortion that they produce, demodulates the three-dimensional information of measured object; Strobe light illumination be with high-frequency optical pulse irradiation to object, require the stroboscopic speed of the scanning speed of camera and light source synchronous.Can select any one light source according to actual needs.
In the present embodiment, the quantity of probe array 1-2 middle probe and the diameter of choosing every probe can be set according to actual needs.
The difference of the specific embodiment two, this specific embodiment and the specific embodiment one described position of radial artery checkout gear is that lighting module 1-1 is a fluorescent lamp.
The difference of the specific embodiment three, this specific embodiment and the specific embodiment one described position of radial artery checkout gear is that lighting module 1-1 is for being light emitting diode.
The difference of the specific embodiment four, this specific embodiment and the specific embodiment one described position of radial artery checkout gear is that lighting module 1-1 is the optical fiber lamp.
The difference of the specific embodiment five, this specific embodiment and the specific embodiment one, two, three or four described position of radial artery checkout gears is that image-forming module 2 is a ccd image sensor.
In the present embodiment, image-forming module 2 can obtain the different displacement diagram pictures constantly of each probe by ccd image sensor, and the position of the probe of change in displacement maximum is exactly the position of radial artery.
The difference of the specific embodiment six, this specific embodiment and the specific embodiment five described position of radial artery checkout gears is, signal processing and display module 3 comprise DSP processing module 3-1 and inserting needle position display module 3-2, and the signal input part of described DSP processing module 3-1 is as the signal input part of signal processing and display module 3; The control signal output of described DSP processing module 3-1 is connected with the control signal input of inserting needle position display module 3-2.
In the present embodiment, DSP processing module 3-1 provides final judged result, and inserting needle position display module 3-2 shows the position of radial artery intuitively, and then provides inserting needle accurate position for medical personnel.
The difference of the specific embodiment seven, this specific embodiment and the specific embodiment one, two, three, four or six described position of radial artery checkout gears is that inserting needle position display module 3-2 is a LED display.
The difference of the specific embodiment eight, this specific embodiment and the specific embodiment seven described position of radial artery checkout gears is that the quantity of probe array 1-2 middle probe is 20, and described all probe arrays become a row; The diameter of described every probe is 0.7mm.
The specific embodiment nine, a kind of position of radial artery detection method, it is because the following steps realization:
Step 1, the test surface of probe array is closely contacted wrist skin, and plane, described probe array place is vertical with orientation arm, described probe array is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together, and N is less than 100 integer greater than 5;
The lateral image of all probe arrays that step 3, contrast step 2 obtain, the discrete point that the end of probe of all probes in every width of cloth image forms is analyzed, search the discrete point of change in displacement maximum, determine the probe in the probe array of discrete point correspondence of described change in displacement maximum then, the position of the wrist skin of described probe contact is position of radial artery.The difference of the specific embodiment ten, this specific embodiment and the specific embodiment nine described a kind of position of radial artery detection methods is, in step 2, adopts illuminator to provide secondary light source for imaging.
Claims (2)
1. position of radial artery detection method, it is based on the realization of position of radial artery checkout gear: described position of radial artery checkout gear comprises position of radial artery detecting module (1), image-forming module (2) and signal processing and display module (3), described position of radial artery detecting module (1) comprises lighting module (1-1) and probe array (1-2), described probe array (1-2) is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together; Image-forming module (2) carries out imaging to the imaging surface of probe array (1-2), and lighting module (1-1) provide secondary light source for image-forming module (2); The signal output part of described image-forming module (2) is connected with the signal input part of signal processing and display module (3), and N is less than 100 integer greater than 5;
It is characterized in that: it is realized by following steps:
Step 1, the test surface of probe array is closely contacted wrist skin, and plane, described probe array place is vertical with orientation arm, described probe array is made up of N root probe, described N root probe is arranged in a row, and the end of probe of all probes is in the same plane, described plane is a test surface, and the afterbody of all probes is fixed together;
Step 2, in setting-up time, continuous imaging is carried out in the side of the probe array in the step 1, the time of described setting is an at least dancing time of radial artery;
The lateral image of all probe arrays that step 3, contrast step 2 obtain, the discrete point that the end of probe of all probes in every width of cloth image forms is analyzed, search the discrete point of change in displacement maximum, determine the probe in the probe array of discrete point correspondence of described change in displacement maximum then, the position of the wrist skin of described probe contact is position of radial artery.
2. a kind of position of radial artery detection method according to claim 1 is characterized in that in step 2, adopts illuminator to provide secondary light source for imaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010120453XA CN101773383B (en) | 2010-03-09 | 2010-03-09 | Method for detecting position of radial artery |
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| CN201010120453XA CN101773383B (en) | 2010-03-09 | 2010-03-09 | Method for detecting position of radial artery |
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| CN101773383A CN101773383A (en) | 2010-07-14 |
| CN101773383B true CN101773383B (en) | 2011-05-25 |
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| CN104013389B (en) * | 2014-06-18 | 2016-01-20 | 香港应用科技研究院有限公司 | For searching for the method and apparatus of artery position |
| CN109427065B (en) * | 2017-08-31 | 2022-02-25 | 中国科学院微电子研究所 | Guan mai recognition system based on thermal imaging |
| CN109419497B (en) * | 2017-08-31 | 2021-12-17 | 中国科学院微电子研究所 | Guan mai recognition method based on thermal imaging |
| WO2019056179A1 (en) * | 2017-09-19 | 2019-03-28 | 深圳配天智能技术研究院有限公司 | Vibration detecting apparatus and method, computer storage medium, and pulse diagnosis device |
| CN108784664B (en) * | 2018-06-28 | 2024-09-24 | 上海掌门科技有限公司 | Pulse feeling device based on pressure sensor and image acquisition equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW366275B (en) * | 1997-11-19 | 1999-08-11 | Seiko Epson Corp | Pulse testing method, artery location testing method and pulse testing device |
| US7306563B2 (en) * | 2002-03-02 | 2007-12-11 | Huang Herb H | Pulse diagnostic system |
| JP3838201B2 (en) * | 2003-01-21 | 2006-10-25 | オムロンヘルスケア株式会社 | Pulse wave detector |
| JP3979335B2 (en) * | 2003-04-21 | 2007-09-19 | オムロンヘルスケア株式会社 | Pressure pulse wave detector |
| JP4452875B2 (en) * | 2003-07-30 | 2010-04-21 | 国立大学法人 東京医科歯科大学 | Arterial blood vessel detection device, pressure pulse wave detection device, and arteriosclerosis evaluation device |
| CN100382748C (en) * | 2006-06-13 | 2008-04-23 | 兰州理工大学 | Sphygmus dynamic image information collecting system |
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