CN110786833A - Device for detecting and projecting skin tissue wound in real time by laser speckle - Google Patents
Device for detecting and projecting skin tissue wound in real time by laser speckle Download PDFInfo
- Publication number
- CN110786833A CN110786833A CN201911223800.9A CN201911223800A CN110786833A CN 110786833 A CN110786833 A CN 110786833A CN 201911223800 A CN201911223800 A CN 201911223800A CN 110786833 A CN110786833 A CN 110786833A
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- Prior art keywords
- laser
- beam splitter
- detecting
- wound area
- helium
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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
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
- A61B5/445—Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore
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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
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
Abstract
The invention discloses a device for detecting and projecting skin tissue wounds by laser speckle in real time. The device comprises a helium-neon laser, a spatial filter, a pinhole, a biconvex mirror, a beam splitter, a CMOS camera, a computer and a projection device. The specific implementation process comprises the following steps: the method comprises the steps of emitting laser beams from a helium-neon laser, enabling the laser beams to pass through a spatial filter for filtering, pinhole beam expanding and biconvex mirror collimation, then passing through a beam splitter, striking the laser beams in a biological epidermal tissue wound area, enabling generated back scattering light to return to the beam splitter, enabling light intensity information of outgoing light beams of the beam splitter to be collected and recorded through a CMOS camera, then transmitting the light intensity information to a computer for processing, projecting the light intensity information to the biological epidermal tissue wound area through a projection device, obtaining distribution images of the wound area wound degree, and enabling different damage degrees to be different in color displayed in. The device has important significance for detecting the damage degree of the injured epidermal tissue of the organism, treating the injured epidermal tissue in real time and detecting the recovery condition of the vascular reconstruction operation.
Description
Technical Field
The invention relates to an optical detection projection system, in particular to a device for detecting and projecting skin tissue wounds by laser speckles in real time.
Background
The injury of epidermal tissues of organisms generally can lead to the skin blood vessel to break, and in the self-recovery ability of human bodies, the blood vessel can be recovered by self so as to slowly recover the normal physiological state through metabolism, but the blood vessel can not be automatically repaired when the injury degree is large, and the blood vessel reconstruction operation is needed. The invention is used as an optical system device, mainly applied to the actual detection of the injury degree of the biological epidermal tissue and projection-assisted treatment through a laser speckle rheology imaging system. The idea of the invention is to innovatively utilize the laser speckle technology to image a wound area in a non-contact real-time manner, acquire an optical signal and process the optical signal, and then directly project the damage condition to the damaged part, so that the distribution of the damage degree in the damaged area is obtained, guidance is provided for whether to perform a vascular reconstruction operation and a specific part needing the operation, and the safety and the reliability of the operation are ensured.
Disclosure of Invention
The invention aims to provide a device for detecting and projecting skin tissue wounds by laser speckle in real time. The specific technical scheme is as follows: a device for detecting and projecting skin tissue wound by laser speckle comprises a helium-neon laser, a spatial filter, a pinhole, a biconvex mirror, a beam splitter, a CMOS camera, a computer and a projection device; the specific implementation process of the device is as follows: laser beams are emitted from a helium-neon laser, after being filtered by a spatial filter, expanded by a pinhole and collimated by a biconvex mirror, the laser beams pass through a beam splitter and strike the wound area of the biological epidermal tissue, generated back scattering light returns to the beam splitter, light intensity information is collected and recorded by a CMOS (complementary metal oxide semiconductor) camera through the outgoing light beam of the beam splitter and then transmitted to a computer for processing, and the processed light beam is projected to the wound area of the biological epidermal tissue through a projection device to obtain a distribution image of the damage degree of the wound area.
Preferably, the helium-neon laser adopts a 632.8nm helium-neon laser which emits laser beams with the wavelength of 632.8 nm.
Preferably, the CMOS camera employs a low magnification imaging lens.
The idea of the invention is to innovatively utilize the laser speckle technology to image a wound area in a non-contact real-time manner, acquire an optical signal and process the optical signal, and then directly project the damage condition to the damaged part, so that the distribution of the damage degree in the damaged area is obtained, guidance is provided for whether to perform a vascular reconstruction operation and a specific part needing the operation, and the safety and the reliability of the operation are ensured.
Drawings
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1. helium-neon laser, 2. spatial filter, 3. pinhole, 4. biconvex mirror, 5. beam splitter, 6.CMOS camera, 7. computer, 8. projection arrangement, 9. biological epidermal tissue wound area.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the specific embodiments described herein are only for illustrating the present invention and are not to be construed as limiting the present invention, and products that can achieve the same functions are included in the scope of the present invention.
Referring to fig. 1, a device for detecting and projecting skin tissue wounds by laser speckle comprises a helium-neon laser, a spatial filter, a pinhole, a biconvex mirror, a beam splitter, a CMOS camera, a computer and a projection device; the specific implementation process of the device is as follows: laser beams are emitted from a helium-neon laser, after being filtered by a spatial filter, expanded by a pinhole and collimated by a biconvex mirror, the laser beams pass through a beam splitter and strike the wound area of the biological epidermal tissue, generated back scattering light returns to the beam splitter, light intensity information is collected and recorded by a CMOS (complementary metal oxide semiconductor) camera through the outgoing light beam of the beam splitter and then transmitted to a computer for processing, and the processed light beam is projected to the wound area of the biological epidermal tissue through a projection device to obtain a distribution image of the damage degree of the wound area.
Furthermore, the helium-neon laser adopts a 632.8nm helium-neon laser, and emits a laser beam with the wavelength of 632.8 nm.
Furthermore, the CMOS camera adopts a low-magnification camera lens.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (3)
1. A device for detecting and projecting skin tissue wound by laser speckle is characterized by comprising a helium-neon laser, a spatial filter, a pinhole, a biconvex mirror, a beam splitter, a CMOS camera, a computer and a projection device; the specific implementation process of the device is as follows: laser beams are emitted from a helium-neon laser, after being filtered by a spatial filter, expanded by a pinhole and collimated by a biconvex mirror, the laser beams pass through a beam splitter and strike the wound area of the biological epidermal tissue, generated back scattering light returns to the beam splitter, light intensity information is collected and recorded by a CMOS (complementary metal oxide semiconductor) camera through the outgoing light beam of the beam splitter and then transmitted to a computer for processing, and the processed light beam is projected to the wound area of the biological epidermal tissue through a projection device to obtain a distribution image of the damage degree of the wound area.
2. The device of claim 1, wherein the he-ne laser is a 632.8nm he-ne laser emitting a laser beam with a wavelength of 632.8 nm.
3. The device for detecting and projecting skin tissue wounds using laser speckle as claimed in claim 1, wherein the CMOS camera employs a low magnification camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223800.9A CN110786833A (en) | 2019-12-03 | 2019-12-03 | Device for detecting and projecting skin tissue wound in real time by laser speckle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911223800.9A CN110786833A (en) | 2019-12-03 | 2019-12-03 | Device for detecting and projecting skin tissue wound in real time by laser speckle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110786833A true CN110786833A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911223800.9A Pending CN110786833A (en) | 2019-12-03 | 2019-12-03 | Device for detecting and projecting skin tissue wound in real time by laser speckle |
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| CN (1) | CN110786833A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040171960A1 (en) * | 2003-02-17 | 2004-09-02 | Brain Functions Laboratory, Inc. | Method and apparatus for measuring degree of neuronal impairment in brain cortex |
| CN102415886A (en) * | 2011-09-09 | 2012-04-18 | 武汉呵尔医疗科技发展有限公司 | Superficial blood vessel display method and instrument |
| CN102871645A (en) * | 2011-07-11 | 2013-01-16 | 浙江大学 | Near-infrared imaging ultrasonic vascular therapeutic apparatus |
| CN106714670A (en) * | 2014-07-24 | 2017-05-24 | 大学健康网络 | Collection and analysis of data for diagnostic purposes |
| CN106725349A (en) * | 2017-02-28 | 2017-05-31 | 武汉迅微光电技术有限公司 | A kind of dermoscopy of detectable blood flow |
| CN108143501A (en) * | 2017-12-15 | 2018-06-12 | 泗洪县正心医疗技术有限公司 | A kind of dissection projecting method based on body surface vein pattern |
| CN110200707A (en) * | 2019-06-28 | 2019-09-06 | 上海德芬生物科技有限公司 | A kind of operating microscope system and imaging method showing blood flow information |
| CN110292373A (en) * | 2019-07-23 | 2019-10-01 | 优谱激光科技(南京)有限公司 | A kind of high-performance tissue blood flow detection analytical equipment |
-
2019
- 2019-12-03 CN CN201911223800.9A patent/CN110786833A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040171960A1 (en) * | 2003-02-17 | 2004-09-02 | Brain Functions Laboratory, Inc. | Method and apparatus for measuring degree of neuronal impairment in brain cortex |
| CN102871645A (en) * | 2011-07-11 | 2013-01-16 | 浙江大学 | Near-infrared imaging ultrasonic vascular therapeutic apparatus |
| CN102415886A (en) * | 2011-09-09 | 2012-04-18 | 武汉呵尔医疗科技发展有限公司 | Superficial blood vessel display method and instrument |
| CN106714670A (en) * | 2014-07-24 | 2017-05-24 | 大学健康网络 | Collection and analysis of data for diagnostic purposes |
| CN106725349A (en) * | 2017-02-28 | 2017-05-31 | 武汉迅微光电技术有限公司 | A kind of dermoscopy of detectable blood flow |
| CN108143501A (en) * | 2017-12-15 | 2018-06-12 | 泗洪县正心医疗技术有限公司 | A kind of dissection projecting method based on body surface vein pattern |
| CN110200707A (en) * | 2019-06-28 | 2019-09-06 | 上海德芬生物科技有限公司 | A kind of operating microscope system and imaging method showing blood flow information |
| CN110292373A (en) * | 2019-07-23 | 2019-10-01 | 优谱激光科技(南京)有限公司 | A kind of high-performance tissue blood flow detection analytical equipment |
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Application publication date: 20200214 |
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