CN104799815B - A kind of vim and vigour harvester and method based on image guiding - Google Patents
A kind of vim and vigour harvester and method based on image guiding Download PDFInfo
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- CN104799815B CN104799815B CN201510135777.3A CN201510135777A CN104799815B CN 104799815 B CN104799815 B CN 104799815B CN 201510135777 A CN201510135777 A CN 201510135777A CN 104799815 B CN104799815 B CN 104799815B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
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Abstract
The invention discloses a kind of vim and vigour harvester and method based on image guiding, including wrist-fixation frame, image capture module is fixed with directly over wrist-fixation frame, infrared light supply module is fixed with immediately below wrist-fixation frame, the image of collection is sent to image processing module by image capture module, and image processing module is shown the result of processing by display module.The present invention can realize that medical personnel gather vim and vigour according to the position of radial artery information on display module and director information inserting needle, and by learning the situation of inserting needle on real-time display image.Three cameras gather patient's wrist image simultaneously, and the collection of data is accurate.
Description
Technical field
The present invention relates to technical field of medical instruments, and in particular to a kind of vim and vigour harvester and side based on image guiding
Method.
Background technology
Blood gas analysis is medically to be usually used in judging that body whether there is acid-base imbalance and anoxic and degree of oxygen deficiency
Deng measuring means.Arterial blood gas analysis can accurately reflect the respiratory function and metabolic condition of human body, diagnose respiratory failure and acid
Soda balance is disorderly, and guides oxygen therapy and mechanical ventilation.In blood gas analysis, whether the collection and preservation of blood preparation are appropriate, right
Measurement result has considerable influence.Blood gas analysis using arterial blood as analysis sample, the conventional artery of arterial blood drawing is femoral artery,
Arteria brachialis and radial artery.Because radial artery table is shallow, it is readily accessible to, the features such as easy hemostasis by compression, in practical clinical often
Collection radial artery blood is used for blood gas analysis.
Existing radial artery blood collection device is for some radial arterys unobvious patient, or in medical personnel's experience not
In the case of foot, collection radial artery vim and vigour difficulty is larger, and disposable puncture success rate is not high, and patient feels pain, easy shape
Into local hematoma, ecchymosis.
The content of the invention
For solve the shortcomings of the prior art, the invention discloses it is a kind of based on image guiding vim and vigour harvester and
Method, judge patient's wrist position of radial artery using the device, guide nurse to complete oar according to information such as position of radial artery and move
Arteries and veins vim and vigour gather.
To achieve the above object, concrete scheme of the invention is as follows：
A kind of vim and vigour harvester based on image guiding, including wrist-fixation frame, the wrist-fixation frame it is upper
Side is provided with image capture module, and the image of collection is sent to image processing module by image capture module, and image processing module is also
It is connected with infrared light supply module, image processing module receives and handled the image information that image capture module collects, and finally will
Processing information is exported to display module；
Described image processing module includes microprocessor, can receive patient's wrist oar side that image capture module collects
The image of the multiple different acquisition angles of the same area, the blood vessel image in the image that microprocessor passes through collection, utilize various visual angles
Three-dimensional reconstruction algorithm, the thickness situation and distribution situation of blood vessel in patient's wrist are recovered, and according to hemoglobin to near-infrared
The selective absorbing feature of light distinguishes artery and vein, there is provided position of radial artery letter relatively thick and nearer apart from epidermis
Breath, guide and carry out vim and vigour collection.
Wherein, the image pair that multi-view angle three-dimensional algorithm for reconstructing is shot with different view by three infrared cameras recovers
The process of subject three-dimensional information.Realize that the process generally comprises the steps：Infrared phase demarcation, feature extraction, stand
Body matches and three dimensional signal space.
Infrared camera is demarcated：The purpose of infrared camera demarcation is to determine the geometric position of camera, property parameters and is created as
As model, so that determine between the object in world coordinate system and its picture point on the imaging plane of video camera corresponding closes
System.Infrared phase demarcation includes determining video camera inner geometry optical characteristics (inner parameter) and determines video camera in world coordinate system
In three-dimensional position and direction (external parameter).
Infrared camera demarcates the putting position and situation of the wrist based on patient, it is ensured that positioned at wrist upper front, wrist
Three infrared cameras of positive left and wrist front right shoot wrist the same area, and wrist front left camera and wrist
The angle of portion's upper front camera, three cameras identical with the angle of wrist front right camera and wrist upper front camera
Image is gathered simultaneously, by direct linear transformation (DLT) camera marking method, directly using the linear model of video camera,
Utilize the parameter of Solving Linear video camera.
Feature extraction：Multi-view angle three-dimensional is rebuild to be to determine in scene according to the key of parallax recovery target object depth information
Corresponding relation of the same object point in three images, identical feature in three width images is obtained by SIFT methods and extracts the spy
Sign point.
Stereo matching：Stereo matching refers to calculating of the basis to selected characteristic point, and the corresponding relation established between feature,
Subpoint of the same spatial point in different images is mapped.Based on the matching algorithm in region with wrist upper front
The image that infrared camera collects is as a window is created centered on reference map, and the point to be matched of access, with neighborhood picture
The grey value profile of element characterizes the pixel, then finds such a pixel according to matching criterior constraint in alignment figure,
A same window is created centered on it, and it is characterized with the grey value profile of its neighborhood territory pixel, then according to appropriate
Similarity measure, compare the similitude of the intensity profile of two windows, similitude must is fulfilled for certain threshold condition, so as to
Realize the registration of three width images.
Three dimensional signal space：After by Stereo matching, you can according to parallax in imaging model and the geometrical relationship of depth,
The depth of target is calculated.
The wrist-fixation frame is hollow cylindrical, and image capture module includes three near infrared cameras, and wrist is fixed
The surface of support is provided with three circular openings, and each cavity is embedded in a near infrared camera, and image capture module rear is consolidated
Surely there is image processing module.
The lower section of the wrist-fixation frame and image capture module are arranged right below three circular openings, each cavity
Near-infrared lamp is embedded in, three near-infrared lamps form infrared light supply module；Display module by data line connection figure picture at
Module is managed, is fixed on above wrist-fixation frame.
Three near infrared cameras of described image acquisition module are respectively positioned at patient's wrist oar side top, oar side left and oar
What the near infrared light that the near infrared camera alignment patient's wrist oar side the same area collection of side right three penetrates patient's wrist was formed
Image, the characteristics of obvious selective absorbing, is had near infrared light according to hemoglobin, through the near infrared light shape of patient's wrist
Into image can clearly reflect the image of blood vessel in patient's wrist, the pickup area of three near infrared cameras is identical but gathers
Angle is different.
Three near-infrared lamps of the infrared light supply module are located at patient's wrist back side, back side left and the back side respectively
Right, while to some area illumination near infrared light at patient's wrist back side, it is near red because near infrared light has stronger penetrability
Outer light penetrates patient's wrist and the image capture module above patient's wrist oar side is clearly collected patient's wrist
Interior vessel information.
A kind of vim and vigour acquisition method based on image guiding, comprises the following steps：
Step 1：Patient's wrist is fixed by wrist-fixation frame first, prevents its movement, is adjusted in image capture module
The angle of three near infrared cameras makes it gather patient's wrist oar side the same area, and three adjusted in infrared light supply module are near red
Outer lamp makes it irradiate patient's wrist back side the same area, and this two panel region is on same axis, it is ensured that three near red
Outer light irradiation come out near-infrared light-transmissive patient wrist and collected by three near infrared cameras；
Step 2：Three near-infrared lamps that infrared light supply module is included irradiate near red to patient's wrist back side the same area
Outer light；Three near infrared cameras included again by image capture module gather the image of patient's wrist oar side the same area；
Step 3：The image information that three near infrared cameras collect is received by image processing module, image processing module
In the different image information of microprocessor wrist oar side the same area that three near infrared cameras are collected but acquisition angles
Handled, obtain position of radial artery information；
Step 4：Display module shows position of radial artery information, and passes through image capture module real-time display wrist image；
Step 5：Medical personnel gather vim and vigour according to the position of radial artery information inserting needle on display module, and by real-time
The situation of inserting needle is learnt in display image.
Beneficial effects of the present invention：
Medical personnel gather vim and vigour according to the position of radial artery information on display module and director information inserting needle, and pass through reality
When display image on learn the situation of inserting needle.Three near infrared cameras gather patient's wrist image simultaneously, and the collection of data is accurate.
Brief description of the drawings
Fig. 1 is a kind of functional schematic of vim and vigour harvester based on image guiding provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of vim and vigour harvester based on image guiding provided in an embodiment of the present invention；
In figure, 103, image capture module, 2, wrist oar side, 102, near infrared light source module, 101, wrist-fixation frame,
5th, arm, 104, image processing module, 105, display module.
Embodiment：
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1-2, the embodiments of the invention provide a kind of vim and vigour harvester based on image guiding.Including：
101st, wrist-fixation frame.
Wherein, fixed is patient's wrist, image capture module and near infrared light source module.
Specifically, patient's wrist is fixed by support, prevent wrist from moving；Image capture module and near infrared light source module quilt
Support is fixed, and prevents that modules are subjected to displacement during IMAQ, processing and display.Image capture module is located at wrist
Above fixed support, infrared light supply module is located at below wrist-fixation frame, and vim and vigour personnel wrist to be collected is fixed via wrist
After support is fixed, wrist oar side 2 is upward.
102nd, near infrared light source module.
Wherein, near infrared light source module transmitting near infrared light.
Specifically, near infrared light source module includes three near-infrared lamps, a certain region in patient's wrist back is irradiated.
103rd, image capture module.
Wherein, collection is patient's wrist oar side image.
Specifically, image capture module includes three near infrared cameras, its camera lens is respectively aligned to focus on patient's wrist oar
Inserting needle pickup area is treated in side 2, and ensures that three near infrared cameras can be collected by three, wrist back side near-infrared lamp via wrist
Portion includes the near infrared light that blood vessel influences in wrist transmitted through what is come.
104th, image processing module.
Wherein, processing is image that image capture module collects.
Specifically, the microprocessor in image processing module receives what three near infrared cameras in image capture module gathered
Wrist oar side image.The different image of the same area but acquisition angles that microprocessor collects to three near infrared cameras is carried out
Multi-view angle three-dimensional rebuilds computing.By near-infrared light source is gathered through wrist and by near infrared camera, the image bag collected
Containing clearly abundant blood vessel image, the region of three near infrared camera collections is identical but because acquisition angles are different, causes every
Camera can collect identical blood vessel, but the distribution of blood vessel is inclined because angle is different with position in the picture
Difference, pass through these deviations, it is possible to the two-dimensional position information of the blood vessel collected is expanded using multi-view angle three-dimensional algorithm for reconstructing
To three dimensional local information, distribution situation of the blood vessel in wrist is recovered.Judged again by blood vessel thickness, and according to arterial blood
Absorptivity different instructions arteries with hemoglobin caused by the difference of oxygen-containing hemoglobin in venous blood near infrared light
And vein blood vessel, with reference to the three dimensional local information of blood vessel, thickness information and arteries judge, will be apart from wrist oar side epidermis most
Near and thicker arterial vascular three dimensional local information is exported to display module.When doctor confirms that promoting circulation of blood will be entered to the arteries
When gas gathers, image processing module will fix the blood vessel three dimensional local information, and call image capture module to gather doctor in real time
Inserting needle situation and image is exported to display module.
105th, display module.
Wherein, it is shown that the wrist artery blood vessel three dimensional local information drawn from image processing module, when doctor determines
When gathering vim and vigour to the blood vessel inserting needle, the three dimensional local information of the blood vessel, which is fixed, to be shown and shows the realtime graphic of inserting needle again, is cured
Life can be played a part of guiding inserting needle according to realtime graphic during inserting needle and the three dimensional local information amendment inserting needle of blood vessel.
Operation principle：Near infrared light source module includes three near-infrared lamps, and the near-infrared light source irradiation wrist back side, is image
Acquisition module provides near infrared light；Image capture module can be adopted by being transmitted to the near infrared light of wrist oar side by the wrist back side
The blood vessel collected in wrist influences；Three near infrared cameras collection wrist oar side region to be collected included in image capture module
The image information of same position；Image processing module is according to same pickup area and different acquisition angles, with various visual angles three
Reconstruction technique is tieed up, by analyzing and handling, the three dimensional local information of blood vessel can be obtained, with image processing techniques, according to vein
Blood is different with near-infrared absorption rate caused by artery blood hemoglobin oxygen content difference, can be demarcated in the image collected
Wrist artery blood vessel, exclude wrist vein blood vessel；And according to the three dimensional local information of blood vessel, the fineness of blood vessel, pick out
The arteries nearest and thicker apart from wrist oar side epidermis, and its three dimensional local information is shown by display module.When doctor is true
During the fixed collection vim and vigour to the blood vessel inserting needle, display module, which is fixed, shows the blood vessel three dimensional local information, and real-time display doctor
Inserting needle situation, doctor is set to be modified by the situation of three dimensional local information and inserting needle.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (2)
1. a kind of vim and vigour harvester based on image guiding, it is characterized in that, including wrist-fixation frame, the wrist fixation branch
The top of frame is provided with image capture module, and the image of collection is sent to image processing module, image procossing by image capture module
Module is also connected with infrared light supply module, and image processing module receives and handled the image information that image capture module collects,
Finally processing information is exported to display module；
Described image processing module includes microprocessor, and it is same can to receive patient's wrist oar side that image capture module collects
The image of the multiple different acquisition angles in region, the blood vessel image in the image that microprocessor passes through collection, utilizes multi-view angle three-dimensional
Algorithm for reconstructing, recover distribution situation of the blood vessel in wrist；Contain according to blood vessel thickness, and according in arterial blood and venous blood
The characteristics of hemoglobin caused by the difference of oxygen hemoglobin is to the absorptivity difference of near infrared light distinguishes arteries and vein
Blood vessel；Judge with reference to the three dimensional local information and arteries of blood vessel, by apart from the nearest and thicker artery of wrist oar side epidermis
The three dimensional local information of blood vessel is exported to display module, is guided and is carried out vim and vigour collection；
The wrist-fixation frame is hollow cylindrical, and image capture module includes three near infrared cameras, wrist-fixation frame
Surface be provided with three circular openings, each hole is embedded in a near infrared camera, and three near-infrared lamps form infrared lights
Source module；Image capture module rear is fixed with image processing module；Display module connects image procossing by data line
Module, it is fixed on above wrist-fixation frame；
Three near-infrared lamps of the infrared light supply module are right positioned at patient's wrist back side, back side left and the back side respectively
Side, while to some area illumination near infrared light at patient's wrist back side；
The multi-view angle three-dimensional algorithm for reconstructing includes：
Infrared camera is demarcated：The putting position and situation of wrist based on patient, it is ensured that positioned at wrist upper front, wrist front
Three infrared cameras of left and wrist front right shoot wrist the same area, and wrist front left camera and wrist are just
The angle of camera above face, identical with the angle of wrist front right camera and wrist upper front camera, three cameras are simultaneously
Image is gathered, by the camera marking method of direct linear transformation, solves the parameter of video camera；
Feature extraction：Identical feature in three width images is obtained by SIFT methods and extracts this feature point；
Stereo matching：The image that infrared camera based on the matching algorithm in region using wrist upper front collects is used as benchmark
Figure, and a window is created centered on the point to be matched of access, the pixel is characterized with the grey value profile of neighborhood territory pixel, so
Find such a pixel according to matching criterior constraint in alignment figure afterwards, a same window created centered on it,
And it is characterized with the grey value profile of its neighborhood territory pixel, then according to similarity measure, compare the intensity profile of two windows
Similitude, similitude must is fulfilled for certain threshold condition, so as to realize the registration of three width images；
Three dimensional signal space：After by Stereo matching, you can according to parallax in imaging model and the geometrical relationship of depth, to mesh
Target depth is calculated.
2. a kind of vim and vigour harvester based on image guiding as claimed in claim 1, it is characterized in that, described image collection mould
Three near infrared cameras of block are respectively positioned at patient's wrist oar side top, oar side left and oar side right, three near infrared cameras
The same area collection of alignment patient's wrist oar side penetrates the image that the near infrared light of patient's wrist is formed, according to hemoglobin near
Infrared light has the characteristics of obvious selective absorbing, and the image formed through the near infrared light of patient's wrist clearly reflects patient
The image of blood vessel in wrist, the pickup area of three near infrared cameras is identical but acquisition angles are different.
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| JP6428052B2 (en) * | 2014-08-26 | 2018-11-28 | セイコーエプソン株式会社 | Biological information acquisition apparatus and electronic device |
| GB2542132B (en) * | 2015-09-08 | 2022-02-09 | Amin H A Al Habaibeh | Medical device assembly |
| CN106580243B (en) * | 2017-02-10 | 2018-06-01 | 青岛浦利医疗技术有限公司 | A kind of PICC secondary light sources and angiography device |
| 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 |
| CN107788949A (en) * | 2017-10-10 | 2018-03-13 | 青岛浦利医疗技术有限公司 | Arteries display and angiograph |
| CN112022293B (en) * | 2020-08-18 | 2022-04-05 | 同济大学 | Gesture recognition venipuncture method and device for intravenous injection robot |
| CN116712157B (en) * | 2023-01-16 | 2024-03-08 | 天津市鹰泰利安康医疗科技有限责任公司 | Irreversible perforation system for heart vessel |
| CN116746926B (en) * | 2023-08-16 | 2023-11-10 | 深圳市益心达医学新技术有限公司 | Automatic blood sampling method, device, equipment and storage medium based on image recognition |
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| CN88211414U (en) * | 1988-02-06 | 1988-12-28 | 叶铭 | Clinical infrared sensor |
| AU6417599A (en) * | 1998-10-08 | 2000-04-26 | University Of Kentucky Research Foundation, The | Methods and apparatus for (in vivo) identification and characterization of vulnerable atherosclerotic plaques |
| CN100453040C (en) * | 2007-01-23 | 2009-01-21 | 天津理工大学 | Identity recognition instrument based on characteristics of subcutaneous vein of dorsum of hand and recognition method |
| CN201005691Y (en) * | 2007-01-24 | 2008-01-16 | 陈居阳 | Reflection type infrared arterial wave acquisition device and sensor |
| CN201383157Y (en) * | 2009-03-30 | 2010-01-13 | 重庆工学院 | Image acquisition device of finger vein certification system |
| CN102106725B (en) * | 2011-03-02 | 2013-03-27 | 哈尔滨工业大学 | Traditional Chinese medical pulse condition sensor merging photoelectricity and pressure |
| CN102415886B (en) * | 2011-09-09 | 2014-02-19 | 武汉呵尔医疗科技发展有限公司 | Superficial blood vessel display method and instrument |
| CA2874401A1 (en) * | 2012-05-29 | 2013-12-05 | National University Corporation Kochi University | Artery visualization device and artery imaging device |
| CN103462587A (en) * | 2013-02-25 | 2013-12-25 | 北京中医药大学 | Digital and visible sphygmogram construction method |
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