CN105411592A - Portable non-contact wound area measurement device - Google Patents
Portable non-contact wound area measurement device Download PDFInfo
- Publication number
- CN105411592A CN105411592A CN201511018044.8A CN201511018044A CN105411592A CN 105411592 A CN105411592 A CN 105411592A CN 201511018044 A CN201511018044 A CN 201511018044A CN 105411592 A CN105411592 A CN 105411592A
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- China
- Prior art keywords
- processing unit
- central processing
- wound
- laser
- wound area
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Classifications
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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
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1075—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1077—Measuring of profiles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1079—Measuring physical dimensions, e.g. size of the entire body or parts thereof using optical or photographic means
Abstract
The invention relates to a portable non-contact wound area measurement device. The device comprises a casing, a camera, a laser slit, a central processing unit, a storage hard disk, a man-machine interactive system and a power supply, wherein the camera is used for collecting wound images; the laser slit is located on the surface of the casing and is adjacent to the camera, a laser light source is arranged in the laser slit and is projected to a position nearby a wound through the laser slit, and a laser scale is formed and located in a collecting area of the camera; the central processing unit is connected with the camera and the laser light source separately; the storage hard disk is in data connection with the central processing unit; the man-machine interactive system comprises a display screen and physical buttons, and the display screen and the physical buttons are connected with the central processing unit separately; the power supply is connected with the central processing unit; the view field angle of the camera is larger than or equal to 90 degrees. According to the scheme, the fast non-contact measurement for the wound is realized, the portability of the device is improved, a doctor is assisted in wound area measurement of a patient and is supplied with important reference basis for further diagnosis and treatment.
Description
Technical field
The present invention relates to a kind of wound area measuring device, particularly one portable noncontact wound area measuring device.
Background technology
At present, home and abroad, about the technology of wound area measurement, mainly contains following several:
1) method of traditional wound area measurement is several grid methods, number grid method measures wound area, and its sample contents used (transparent rubberized fabric) directly contacts with tested wound, but can disturb the wound do not healed like this, not only affect wound healing, also can give painful sensation.
2) digital camera camera method, uses digital camera Direct Sampling, but this method requires subject distance, angle all needs relative constancy, therefore this method less stable.Also have object distance, adjustable angle in addition, as a contrast directly perceived to wound area, many clinical staff can put a paper chi to contrast to calculate wound area on wound side when wound is taken.But its shortcoming is: measured wound area is forbidden, and in order to preventing pollution wound, paper chi can not contact wound, so its error is comparatively large, and adopt complex operation in this way, Measuring Time is long, is not suitable for the emergencies such as field rescue.
3) measuring scale, adopt the graduated ruler of band to carry out physical measurement, but its needs contact with wound face, and easy infection wound surface also brings pain, and maximum range and precision limited.
4) medical dressing is measured, and this method adopts transparent or translucent medical material lid, and flap coverage, the area of wound is estimated in the region then overlapped with wound surface according to dressing.This also needs to contact with wound surface by method, easily pollutes, and can bring great sense of discomfort to patient.
Wound is normally irregular, nonplanar, and traditional measurement method is difficult to reach portable, simple, quick and low-risk measurement.
Summary of the invention
For the deficiency that prior art exists, the object of the invention is to, by the improvement to existing wound area measuring device structure, obtain the wound area measuring device of the convenient degree of a kind of contactless height.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of portable noncontact wound area measuring device, comprising:
Housing, it can be held by hands;
Photographic head, it is positioned at one end of described housing, for gathering wound image;
Laser slit, it is positioned at described surface of shell, and adjacent with described photographic head, LASER Light Source is provided with in described laser slit, described LASER Light Source is incident upon near wound through described laser slit, form beam of laser scale, and this laser survey scale is positioned at the pickup area of described photographic head;
Central processing unit, it is connected with described photographic head and LASER Light Source respectively;
Storage hard disk, itself and described central processing unit data cube computation;
Man-machine interactive system, it comprises display screen and physical button, and described display screen and physical button are connected with described central processing unit respectively;
Power supply, it is connected with described central processing unit;
Wherein, the angle of visual field >=90 ° of described photographic head.
Preferably, described portable noncontact wound area measuring device, wherein, at least containing a LVDS interface in described central processing unit.
Preferably, described portable noncontact wound area measuring device, wherein, the angle that described LASER Light Source and described laser slit two ends are formed is 15 ~ 75 °.
Preferably, described portable noncontact wound area measuring device, wherein, described photographic head includes the camera lens, prism, optical filter, ccd sensor and the circuit board that arrange in turn.
Preferably, described portable noncontact wound area measuring device, wherein, at least containing a LVDS interface on described circuit board, described photographic head realizes data cube computation by this LVDS interface and described central processing unit.
Preferably, described portable noncontact wound area measuring device, wherein, described power supply is rechargeable battery.
Preferably, described portable noncontact wound area measuring device, wherein, described central processing unit is ARM development board or DSP development board.
The invention has the beneficial effects as follows: this case adopts hand-holdable structure, achieve the contactless Quick Measurement to wound area, add convenience during measurement, improve the portability of device, contribute to doctor to measure the wounded's wound area, can be doctor and carry out further Diagnosis and Treat important reference is provided.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable noncontact wound area measuring device.
Fig. 2 is the operation principle schematic diagram of portable noncontact wound area measuring device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
As depicted in figs. 1 and 2, the portable noncontact wound area measuring device of an embodiment is listed in this case, comprising:
Housing, it can be held by hands; Adopt the structure of hand-held can increase the portability of device.The structure of housing is not by other concrete restrictions.
Photographic head, it is positioned at one end of housing, for gathering wound image;
Laser slit, it is positioned at surface of shell, and adjacent with photographic head, is provided with LASER Light Source in laser slit, and LASER Light Source is incident upon near wound through laser slit, form beam of laser scale, and this laser survey scale is positioned at the pickup area of photographic head; LASER Light Source preferably adopts the red laser of 635nm wavelength, and it can meet flash ranging and eye-safe requirement.
Central processing unit, it is connected with photographic head and LASER Light Source respectively;
Storage hard disk, itself and central processing unit data cube computation;
Man-machine interactive system, it comprises display screen and physical button, and display screen is connected with central processing unit respectively with physical button; The displaying contents of display screen comprises measurement parameter, testing result etc.The function of physical button comprises start, shuts down, takes pictures, testing result preservation etc.;
Power supply, it is connected with central processing unit, for powering for whole equipment;
Wherein, the angle of visual field >=90 ° of photographic head, to increase pixel count occupied in unit are, thus improve the computational accuracy to area measurement.
In the above-described embodiments, at least containing a LVDS interface in central processing unit, LVDS interface is used for transmission of digital signals, to meet the requirement of low-power consumption, low error rate, low crosstalk and Low emissivity.
In the above-described embodiments, the angle α that LASER Light Source and laser slit two ends are formed is preferably 15 ~ 75 ° (as shown in Figure 2).This angle should be defined, otherwise will affect the precision of laser survey scale, thus the computational accuracy of impact to wound area.
In the above-described embodiments, photographic head includes the camera lens, prism, optical filter, ccd sensor and the circuit board that arrange in turn.Circuit board can direct output digit signals.
In the above-described embodiments, at least containing a LVDS interface on circuit board, photographic head realizes data cube computation by this LVDS interface and central processing unit.
In the above-described embodiments, power supply is preferably rechargeable battery.
In the above-described embodiments, central processing unit is preferably ARM development board or DSP development board.
The principle of this device areal calculation is: the size due to laser slit is fixing, the angle at LASER Light Source and slit two ends is also determined, the so device distance distance of wound and the projection of laser around wound, namely the magnitude relationship of laser survey scale is also determined, distance is far away, and laser survey scale is longer; Distance is nearer, and laser survey scale is shorter; This proportionate relationship can typing in advance be entered in central processing unit; Collect because wound and laser-marking are caught on camera head all simultaneously, therefore, can pixel quantity occupied by laser-marking, converse the pixel quantity occupied by wound, meanwhile, the actual range corresponding to laser survey scale is known, therefore, the real area of wound can be conversed.
The measuring process of wound area measuring device is:
1, start shooting, LASER Light Source sends light beam, obtains laser survey scale, simultaneously camera collection wound area image;
2, wound area image is calculated, obtain marginal information, calculate the pixel count of wound area according to marginal information;
3, by corresponding with the reference of laser survey scale for wound pixel count length vs, convert, obtain wound real area;
4, Output rusults.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the general concept that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. a portable noncontact wound area measuring device, is characterized in that, comprising:
Housing, it can be held by hands;
Photographic head, it is positioned at one end of described housing, for gathering wound image;
Laser slit, it is positioned at described surface of shell, and adjacent with described photographic head, LASER Light Source is provided with in described laser slit, described LASER Light Source is incident upon near wound through described laser slit, form beam of laser scale, and this laser survey scale is positioned at the pickup area of described photographic head;
Central processing unit, it is connected with described photographic head and LASER Light Source respectively;
Storage hard disk, itself and described central processing unit data cube computation;
Man-machine interactive system, it comprises display screen and physical button, and described display screen and physical button are connected with described central processing unit respectively;
Power supply, it is connected with described central processing unit;
Wherein, the angle of visual field >=90 ° of described photographic head.
2. portable noncontact wound area measuring device as claimed in claim 1, is characterized in that, at least containing a LVDS interface in described central processing unit.
3. portable noncontact wound area measuring device as claimed in claim 1, is characterized in that, the angle that described LASER Light Source and described laser slit two ends are formed is 15 ~ 75 °.
4. portable noncontact wound area measuring device as claimed in claim 2, it is characterized in that, described photographic head includes the camera lens, prism, optical filter, ccd sensor and the circuit board that arrange in turn.
5. portable noncontact wound area measuring device as claimed in claim 4, is characterized in that, at least containing a LVDS interface on described circuit board, described photographic head realizes data cube computation by this LVDS interface and described central processing unit.
6. portable noncontact wound area measuring device as claimed in claim 1, it is characterized in that, described power supply is rechargeable battery.
7. portable noncontact wound area measuring device as claimed in claim 1, is characterized in that, described central processing unit is ARM development board or DSP development board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018044.8A CN105411592A (en) | 2015-12-30 | 2015-12-30 | Portable non-contact wound area measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018044.8A CN105411592A (en) | 2015-12-30 | 2015-12-30 | Portable non-contact wound area measurement device |
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| Publication Number | Publication Date |
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| CN105411592A true CN105411592A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511018044.8A Pending CN105411592A (en) | 2015-12-30 | 2015-12-30 | Portable non-contact wound area measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108606782A (en) * | 2018-04-28 | 2018-10-02 | 泰州市榕兴医疗用品股份有限公司 | A kind of surface of a wound imaging system |
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| CN101534698A (en) * | 2006-09-27 | 2009-09-16 | 乔治亚技术研究公司 | Systems and methods for the measurement of surfaces |
| CN103156616A (en) * | 2013-04-08 | 2013-06-19 | 中国人民解放军第四军医大学 | Multi-functional cut measurement rule and measurement method thereof |
| US20140088402A1 (en) * | 2012-09-25 | 2014-03-27 | Innovative Therapies, Inc. | Wound measurement on smart phones |
| CN104161522A (en) * | 2014-08-12 | 2014-11-26 | 北京工业大学 | Auxiliary distance-measuring device of wound area measurement system |
| CN104287738A (en) * | 2014-10-17 | 2015-01-21 | 昆山韦睿医疗科技有限公司 | Apparatus and method for calculating wound area |
| CN205306977U (en) * | 2015-12-30 | 2016-06-15 | 中国科学院苏州生物医学工程技术研究所 | Portable non -contact wound area measurement device |
-
2015
- 2015-12-30 CN CN201511018044.8A patent/CN105411592A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534698A (en) * | 2006-09-27 | 2009-09-16 | 乔治亚技术研究公司 | Systems and methods for the measurement of surfaces |
| US20140088402A1 (en) * | 2012-09-25 | 2014-03-27 | Innovative Therapies, Inc. | Wound measurement on smart phones |
| CN103156616A (en) * | 2013-04-08 | 2013-06-19 | 中国人民解放军第四军医大学 | Multi-functional cut measurement rule and measurement method thereof |
| CN104161522A (en) * | 2014-08-12 | 2014-11-26 | 北京工业大学 | Auxiliary distance-measuring device of wound area measurement system |
| CN104287738A (en) * | 2014-10-17 | 2015-01-21 | 昆山韦睿医疗科技有限公司 | Apparatus and method for calculating wound area |
| CN205306977U (en) * | 2015-12-30 | 2016-06-15 | 中国科学院苏州生物医学工程技术研究所 | Portable non -contact wound area measurement device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108606782A (en) * | 2018-04-28 | 2018-10-02 | 泰州市榕兴医疗用品股份有限公司 | A kind of surface of a wound imaging system |
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Application publication date: 20160323 |