CN114027793B - High-sensitivity anti-interference photoacoustic imaging system - Google Patents
High-sensitivity anti-interference photoacoustic imaging system Download PDFInfo
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- CN114027793B CN114027793B CN202111321485.0A CN202111321485A CN114027793B CN 114027793 B CN114027793 B CN 114027793B CN 202111321485 A CN202111321485 A CN 202111321485A CN 114027793 B CN114027793 B CN 114027793B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 57
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- 238000007790 scraping Methods 0.000 claims description 31
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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
- A61B5/0093—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy
- A61B5/0095—Detecting, measuring or recording by applying one single type of energy and measuring its conversion into another type of energy by applying light and detecting acoustic waves, i.e. photoacoustic measurements
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Abstract
The invention relates to the technical field of photoacoustic imaging equipment and discloses a high-sensitivity anti-interference photoacoustic imaging system, which comprises a light source emitter body, wherein the light source emitter body is movably connected with the photoacoustic imaging system body through a first-order buffer mechanism, a first ball body is driven to push a first circular plate through the deflection of the light source emitter body, the first circular plate pushes a second ball body to slide in a corresponding arc piece to expand an opening of the corresponding arc piece, the second ball body slides into the arc piece to cause deformation of the arc piece to absorb a part of vibration generated by the light source emitter body, the second ball body slides in the arc piece, the force of the second ball body to the arc piece is transmitted to the corresponding arc piece through the second arc piece to cause the deformation of the corresponding arc piece to further absorb the vibration generated by the light source emitter body, the vibration amplitude generated by the light source emitter body when the photoacoustic imaging system body is impacted by the outside is reduced, the service life of the light source emitter body is prolonged, and the sensitivity of the light source emitter body is improved.
Description
Technical Field
The invention relates to the technical field of photoacoustic imaging equipment, in particular to a high-sensitivity anti-interference photoacoustic imaging system.
Background
The photoacoustic imaging system is commonly used as a means for detecting a patient in medical treatment, a light source emitted by an emitter irradiates a specified region of the patient to detect diseases, the light source emitter in the existing photoacoustic imaging system is usually fixedly connected with a photoacoustic imaging system body, the connection mode has a certain defect, the photoacoustic imaging system is a precise instrument, a very large number of small parts are arranged in the light source emitter, but the photoacoustic imaging system needs to be in close distance or even direct contact with the patient when the patient is detected, certain vibration is caused when the photoacoustic imaging system body is carelessly touched or impacted, and the sensitivity of the whole device of the photoacoustic imaging system can be affected to a certain extent by frequent replacement of the east.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-sensitivity anti-interference photoacoustic imaging system.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a high sensitivity anti-interference photoacoustic imaging system, includes the light source transmitter body, the light source transmitter body passes through first order buffer gear and photoacoustic imaging system body swing joint, first order buffer gear includes spheroid first, plectane second, arc piece first, spheroid second and baffle first, and the light source transmitter body runs through spheroid first and light source transmitter body and spheroid first fixed connection, spheroid first cup joints in plectane first and spheroid one and be connected with plectane one, spheroid second and plectane first fixed connection, arc piece second and arc piece first and plectane second fixed connection, spheroid second and arc piece second sliding connection, plectane second and photoacoustic imaging system body fixed connection, baffle first and the left end face fixed connection of light source transmitter body, the longitudinal joint cross-section of arc piece first and arc piece second is the C shape, and the longitudinal section of spheroid second is circular, and the terminal surface department of light source transmitter body still sets up second order protection machanism.
Preferably, the longitudinal section of the first sphere is circular, the longitudinal section of the second circular plate is circular, the longitudinal section of the first circular plate is provided with a groove matched with the first circular plate, the opening of the second arc plate faces the circular direction of the first circular plate, the opening of the first arc plate faces the circular direction far away from the first circular plate, the second sphere is positioned at the opening of the second arc plate, a plurality of spheres are arranged, the plurality of spheres are equally placed on the circumferential surface of the first circular plate, and the same first arc plate and the same second arc plate are arranged on each sphere in the same mode.
Preferably, the second-order protection mechanism comprises a first cylinder, a second cylinder, a third cylinder, a second cable and a second baffle, wherein the second baffle is rotationally connected with the left end face of the light source emitter body, the first cylinder is sleeved outside the light source emitter body and fixedly connected with the light source emitter body, the second cylinder is in sliding connection with the first cylinder, the third cylinder is in threaded connection with the first cylinder, the left end face of the second cylinder is rotationally connected with the right end face of the second cylinder, one end of the second cable is fixedly connected with the left end face of the second cylinder, and the other end of the second cable is fixedly connected with the second baffle.
Preferably, the horizontal section of the second baffle is trapezoid, the number of the second baffles is four, the four second baffles together form a hollow rectangular pyramid, the same second cable is arranged on each second baffle, the longitudinal section of the first cylinder is circular, and the second cylinder and the third cylinder are hollow cylinders.
Preferably, the second-order protection mechanism further comprises a connecting block, a first cable and a first guide ring, the connecting block is fixedly connected with the second baffle, the first guide ring is fixedly connected with the left end face of the light source emitter body, one end of the first cable is fixedly connected with the connecting block, the first cable penetrates through the first guide ring, and the other end of the first cable is movably connected with the light source emitter body through the wiping mechanism.
Preferably, the wiping mechanism comprises a third baffle plate, a first scraping plate and a second scraping plate, the third baffle plate is fixedly connected with the second baffle plate, the second scraping plate is rotationally connected with the second scraping plate and fixedly connected with the light source emitter body, and the other end of the first cable is fixedly connected with the second scraping plate.
Preferably, the number of the third baffles is four, the four third baffles are fixedly connected with the left end face of the corresponding second baffle, the four third baffles form a cube together, the cube formed by the four third baffles is matched with the opening of the rectangular pyramid formed by the four second baffles, the number of the second scrapers and the first scrapers is four, the four first scrapers and the four second scrapers form a circle together, the diameter of the circle is three times of the diameter of the first baffle, and the circle formed by the four first scrapers and the four second scrapers is not coincident with the center of the circle of the first baffle.
Preferably, the wiping mechanism further comprises a first chute, an arc plate, a first spring and a sliding plate, wherein the arc plate is fixedly connected with the first scraping plate, the first chute is formed in the arc plate, the sliding plate is in sliding connection with the first chute, the sliding plate is in rotating connection with the second scraping plate, one end of the first spring is fixedly connected with the arc plate, and the other end of the first spring is fixedly connected with the sliding plate.
Preferably, the transverse section of the arc-shaped plate is arc-shaped, the transverse section of the first sliding groove is fan-shaped, the first sliding groove is matched with the sliding plate, and the four second scraping plates are provided with the same first sliding groove, the arc-shaped plate, the first spring and the sliding plate in the same mode.
Compared with the prior art, the invention provides a high-sensitivity anti-interference photoacoustic imaging system, which has the following beneficial effects:
1. according to the high-sensitivity anti-interference photoacoustic imaging system, when the photoacoustic imaging system body is subjected to external collision to generate vibration, the vibration drives the light source emitter body to generate tiny offset, the light source emitter body is offset to drive the first pushing circular plate, the first pushing circular plate pushes the second pushing circular plate to slide in the corresponding second arc piece to expand the opening of the corresponding second arc piece, the second pushing circular plate slides into the second arc piece to cause deformation of the second arc piece to absorb vibration generated by a part of the light source emitter body, the second pushing circular plate slides in the second arc piece, force of the second pushing circular plate to the second arc piece is transmitted to the corresponding first arc piece through the second arc piece to cause deformation of the corresponding first arc piece to further absorb vibration generated by the light source emitter body, vibration amplitude generated by the light source emitter body when the photoacoustic imaging system body is subjected to external collision is reduced, the light source emitter body is protected better, damage to the light source emitter body caused by equipment is avoided, the service life of the light source emitter body is prolonged, and the sensitivity of the light source emitter body is improved.
2. According to the high-sensitivity anti-interference photoacoustic imaging system, the light source emitter body is fixed through the first-order protection mechanism, the light source emitter body is prevented from being directly and rigidly connected with the photoacoustic imaging system body, the displacement of the light source emitter body in the vertical direction when the light generation imaging device body is impacted is reduced, the running stability of the light source emitter body is improved, meanwhile, as the first ball body is rotationally connected with the first circular plate, when the first ball body is subjected to large vibration, the first ball body can be driven to rotate for a certain angle in the first circular plate body, the energy of the vibration of the light source emitter body is converted, the influence on the sensitivity caused by transitional vibration of the light source emitter body is avoided, and meanwhile, when the angle of the light source emitted by the light source emitter body needs to be adjusted, the light source emitter body is rotated, and the adjustability of the light source emitter body is improved and the light source imaging system is more flexible.
3. This high sensitivity anti-interference photoacoustic imaging system, through at photoacoustic imaging system body start during operation, the motor rotates and drives the cylinder three rotation, the cylinder three spiral rotates right on the cylinder one and pulls cylinder two to move right, cylinder two drives the baffle two that cable two pulling corresponds and overturn right, baffle two drives baffle three synchronous upset and makes baffle one expose, the light source of light source transmitter body transmission shines appointed region through baffle one, when photoacoustic imaging system body does not work, each baffle two drives baffle three closure and shelter from the left end transmission light source department of light source transmitter body, the protective effect of the left end face transmission light source department of baffle two pair light source transmitter bodies improves and then improves the sensitivity of light source transmitter body.
4. According to the high-sensitivity anti-interference photoacoustic imaging system, when the second baffle plates are overturned, the second baffle plates drive the corresponding connecting blocks to drive the first cable to slide in the corresponding guide rings, the first cable pulls the first baffle plates to rotate on the first baffle plates by a certain angle, the second baffle plates rotate to drive the corresponding sliding plates to slide in the corresponding first sliding grooves to compress the corresponding first springs, the second baffle plates are separated from the first baffle plates, the parts, which are covered by the second baffle plates, of the circles formed by the second baffle plates and the first baffle plates are opened, light sources emitted by the light source emitter bodies are emitted through gaps, the second baffle plates wipe the first baffle plates in the rotating process, floating dust on the left wall surface of the first baffle plates is reduced, the influence of dust on the first baffle plates on the light source emitted by the light source emitter bodies is reduced, and the irradiation sensitivity of the light source emitted by the light source emitter bodies is improved.
5. According to the high-sensitivity anti-interference photoacoustic imaging system, through the cooperation of the first-order protection device and the second-order protection device, when the photoacoustic imaging device body is started each time, the surfaces of the two pairs of baffles of each scraper are wiped, the sensitivity of the light source emitter body in working is improved, when the photoacoustic imaging system is not started, the light source is emitted by the left end face of the light source emitter body through the two pairs of baffles, the emission port of the light source emitter body is protected when the photoacoustic imaging device is started and not started, the risk that the emission port of the light source emitter body is interfered by the outside is reduced, and the sensitivity and precision of the whole device are improved.
6. This high sensitivity anti-interference optoacoustic imaging system through the upset through each baffle two, increases the counter weight of light source transmitter body left end, when light source transmitter body vibrates, the light source transmitter body left end quality is big for the power of light source transmitter body bigger makes the light source transmitter body drive the spheroid one on the light source transmitter body more easily and rotates in the plectane one, the vibration of better filtration light source transmitter body improves the light source transmitter body and unloads the power effect when receiving the striking, reduce the interference of vibration to light source transmitter body internals.
Drawings
FIG. 1 is a partial exploded view of the present invention;
FIG. 2 is a schematic view of the longitudinal cross-section of the first and second disks of the present invention;
FIG. 3 is a schematic view of a second left-hand view of the baffle plate of the present invention;
FIG. 4 is a schematic diagram of a left-hand structure of a second baffle and a light source emitter body according to the present invention;
FIG. 5 is an enlarged view of FIG. 3A in accordance with the present invention;
fig. 6 is a schematic view of a three-dimensional structure of a second baffle and a third baffle of the present invention.
In the figure: 10. a light source emitter body; 11. a sphere I; 12. a circular plate I; 13. a circular plate II; 14. an arc piece I; 15. a sphere II; 16. arc piece II; 17. a first baffle; 18. a second baffle; 19. a third baffle; 21. a connecting block; 22. a first cable; 23. a guide ring I; 24. a first scraping plate; 25. a second scraping plate; 26. a first chute; 27. an arc-shaped plate; 28. a first spring; 29. a sliding plate; 30. a first column; 31. a second column; 32. a column III; 33. and a second cable.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, a high-sensitivity anti-interference photoacoustic imaging system comprises a light source emitter body 10, wherein the light source emitter body 10 is movably connected with the photoacoustic imaging system body through a first-stage buffer mechanism, the first-stage buffer mechanism comprises a sphere first 11, a circular plate first 12, a circular plate second 13, a first arc piece 14, a sphere second 15, a second arc piece 16 and a baffle first 17, the light source emitter body 10 penetrates through the sphere first 11 and the light source emitter body 10 is fixedly connected with the sphere first 11, the sphere first 11 is sleeved in the circular plate first 12, the sphere first 11 is rotatably connected with the circular plate first 12, the sphere second 15 is fixedly connected with the circular plate first 12, the second arc piece 16 is fixedly connected with the circular plate first 14 and the circular plate second 13, the sphere second 15 is slidably connected with the circular plate second 16, the circular plate second 13 is fixedly connected with the photoacoustic imaging system body, the baffle first 17 is arranged on the left wall surface of the light source emitter body 10, the longitudinal sections of the arc piece I14 and the arc piece II 16 are C-shaped, the longitudinal section of the sphere II 15 is circular, a second-order protection mechanism is further arranged at the end face of the light source emitter body 10, the longitudinal section of the sphere I11 is circular, the longitudinal section of the circular plate II 13 is circular, the longitudinal section of the circular plate I12 is circular, the inner circumferential surface of the circular plate II 13 is provided with a groove matched with the circular plate I12, the opening of the arc piece II 16 faces the circular direction of the circular plate I12, the opening of the arc piece I14 faces the circular direction far away from the circular plate I12, the sphere II 15 is positioned at the opening of the arc piece II 16, a plurality of spheres II 15 are equally distributed on the circumferential surface of the circular plate I12, the same arc piece I14 and the arc piece II 16 are arranged on each sphere II 15 in the same manner, when the photoacoustic imaging system body is subjected to external collision vibration, the vibration drives the light source emitter body 10 to generate tiny deflection, the light source emitter body 10 deflects to drive the sphere I11 to push the circular plate I12, the circular plate I12 pushes the sphere II 15 to slide in the corresponding arc piece II 16 to expand the opening of the corresponding arc piece II 16, the sphere II 15 slides into the arc piece II 16 to cause deformation of the arc piece II 16 to absorb a part of vibration generated by the light source emitter body 10, the sphere II 15 slides in the arc piece II 16, the force of the sphere II 15 to the arc piece II 16 is transmitted to the corresponding arc piece I14 through the arc piece II 16 to cause deformation of the corresponding arc piece I14 to further absorb the vibration generated by the light source emitter body 10, the vibration amplitude generated by the light source emitter body 10 when the photoacoustic imaging system body is impacted by the outside is reduced, the light source emitter body 10 is better protected, the damage of equipment caused by the damage to the light source emitter body 10 caused by vibration is avoided, the service life of the light source emitter body 10 is prolonged, and the sensitivity of the light source emitter body 10 is improved.
The light source emitter body 10 is fixed through the first-order protection mechanism, the light source emitter body 10 is prevented from being directly and rigidly connected with the photoacoustic imaging system body, the displacement of the light source emitter body 10 in the vertical direction when the light generating imaging device body is impacted is reduced, the running stability of the light source emitter body 10 is improved, meanwhile, as the ball 11 is rotationally connected with the circular plate 12, when the ball 11 is greatly vibrated, the ball 11 is driven to rotate in the circular plate 12 by vibration of the light source emitter body 10 for a certain angle, the vibration energy of the light source emitter body 10 is converted, the influence on sensitivity caused by transitional vibration of the light source emitter body 10 is avoided, and meanwhile, when the light source angle of the light source emitter body 10 is required to be regulated, the light source emitter body 10 is rotated, the adjustability of the light source emitter body 10 is improved, and the light source emitter is more flexible.
The second-order protection mechanism comprises a first cylinder 30, a second cylinder 31, a third cylinder 32, a second cable 33 and a second baffle 18, wherein the second baffle 18 is rotationally connected with the left end face of the light source emitter body 10, the first cylinder 30 is sleeved outside the light source emitter body 10, the first cylinder 30 is fixedly connected with the light source emitter body 10, the second cylinder 31 is slidingly connected with the first cylinder 30, the third cylinder 32 is in threaded connection with the first cylinder 30, the left end face of the second cylinder 31 is rotationally connected with the right end face of the second cylinder 31, one end of the second cable 33 is fixedly connected with the left end face of the second cylinder 31, the other end of the second cable 33 is fixedly connected with the second baffle 18, the horizontal section of the second baffle 18 is trapezoid, the number of the second baffles 18 is four, the four baffles 18 together form a hollow quadrangular pyramid, the same second cable 33 is arranged on each second baffle 18, the longitudinal section of the first cylinder 30 is ring-shaped, the second column body 31 and the third column body 32 are hollow columns, the third column body 32 is driven by a motor, a motor for driving the third column body 32 is electrically connected with a photoacoustic imaging system body, the third column body 32 is meshed with an output shaft of the motor, the motor is not repeated in the prior art, when the photoacoustic imaging system body is started up, the motor rotates to drive the third column body 32 to rotate, the third column body 32 is spirally rotated on the first column body 30 to pull the second column body 31 to move rightwards, the second column body 31 drives a cable 33 to pull a corresponding second baffle plate 18 to turn rightwards, the second baffle plate 18 drives the third baffle plate 19 to synchronously turn over so as to expose the first baffle plate 17, a light source emitted by the light source emitter body 10 irradiates a designated area through the first baffle plate 17, when the photoacoustic imaging system body does not work, the second baffle plates 18 drive the third baffle plates 19 to be closed to shield the light source emitted by the left end of the light source emitter body 10, the protective effect of the second baffle 18 on the position of the left end surface of the light source emitter body 10 for emitting light sources is improved, and the sensitivity of the light source emitter body 10 is further improved.
The second-order protection mechanism also comprises a connecting block 21, a first cable 22 and a first guide ring 23, wherein the connecting block 21 is fixedly connected with the second baffle 18, the first guide ring 23 is fixedly connected with the left end face of the light source emitter body 10, one end of the first cable 22 is fixedly connected with the connecting block 21, the first cable 22 penetrates through the first guide ring 23, the other end of the first cable 22 is movably connected with the light source emitter body 10 through a wiping mechanism, the wiping mechanism comprises a third baffle 19, a first scraping plate 24 and a second scraping plate 25, the third baffle 19 is fixedly connected with the second baffle 18, the second scraping plate 25 is rotatably connected with the first scraping plate 24, the first scraping plate 24 is fixedly connected with the light source emitter body 10, the other end of the first cable 22 is fixedly connected with the second scraping plate 25, the number of the third scraping plates 19 is four, the third four scraping plates 19 are fixedly connected with the left end face of the corresponding second baffle 18, the third scraping plates 19 jointly form a square body, the square body formed by the four baffles III 19 is matched with the opening of the rectangular pyramid formed by the four baffles II 18, the number of the second scraping plates 25 and the first scraping plates 24 is four, the four first scraping plates 24 and the four second scraping plates 25 jointly form a circle, the diameter of the circle is three times that of the first scraping plates 17, the circle formed by the four first scraping plates 24 and the four second scraping plates 25 jointly does not coincide with the circle center of the first scraping plates 17, the wiping mechanism also comprises a first chute 26, an arc 27, a first spring 28 and a sliding plate 29, the arc 27 is fixedly connected with the first chute 24, the first chute 26 is arranged on the arc 27, the sliding plate 29 is in sliding connection with the first chute 26, the sliding plate 29 is in rotating connection with the second scraping plates 25, one end of the first spring 28 is fixedly connected with the arc 27, the other end of the first spring 28 is fixedly connected with the sliding plate 29, the transverse section of the arc 27 is arc-shaped, the transverse section of the first chute 26 is fan-shaped, the first chute 26 is matched with the sliding plate 29, the four scrapers II 25 are provided with the same sliding grooves I26, arc plates 27, springs I28 and sliding plates 29 in the same mode, when each baffle II 18 is overturned, the baffle II 18 drives the corresponding connecting block 21 to drive the cable I22 to slide in the corresponding guide ring I23, the cable I22 pulls the scrapers II 25 to rotate on the scrapers I24 by a certain angle, the scrapers II 25 rotate to drive the corresponding sliding plates 29 to slide in the corresponding sliding grooves I26 to compress the corresponding springs I28, so that each scraper II 25 and each scraper I24 are separated, the part of a circle formed by the four scrapers II 25 and the scraper I24, which is blocked by each scraper II 25, is opened, the light source emitted by the light source emitter body 10 is emitted through a gap, each scraper II 25 wipes the baffle I17 in the rotating process, the floating dust on the left wall surface of the baffle I17 is reduced, the influence of the dust on the baffle I17 on the light source emitted by the light source emitter body 10 is reduced, and the sensitivity of the light source emitted by the light source emitter body 10 is improved.
Through the cooperation of first order protector and second order protector, when at every photoacoustic imaging device body start, each scraper blade two 25 is cleaned baffle one 17 surfaces, improves the sensitivity of light source transmitter body 10 during operation, for when not starting, each baffle two 18 protects light source department is launched to light source transmitter body 10 left end face, makes the emission port of light source transmitter body 10 all protected when starting and not starting, makes the risk that the emission port department of light source transmitter body 10 is disturbed by the external world reduce, improves the neck sensitivity and the precision of whole device.
Through the upset of each baffle two 18, the counter weight of increase light source transmitter body 10 left end, when light source transmitter body 10 vibrates, the big power for light source transmitter body 10 of light source transmitter body 10 left end quality makes light source transmitter body 10 drive spheroid one 11 on the light source transmitter body 10 more easily and rotates in plectane one 12, the vibration of better filtration light source transmitter body 10 improves light source transmitter body 10 and receives the unloading effect when striking, reduce the interference of vibration to light source transmitter body 10 internals.
When the photoacoustic imaging system is in use, when the photoacoustic imaging system body is subjected to external collision to generate vibration, the vibration drives the light source emitter body 10 to generate tiny offset, the light source emitter body 10 is offset to drive the sphere I11 to push the circular plate I12, the circular plate I12 pushes the sphere II 15 to slide on the corresponding arc piece II 16 to expand the opening of the corresponding arc piece II 16, the sphere II 15 slides into the arc piece II 16 to cause deformation of the arc piece II 16 to absorb part of vibration generated by the light source emitter body 10, the sphere II 15 slides in the arc piece II 16, when the photoacoustic imaging system body is subjected to large vibration, the light source emitter body 10 vibrates to drive the sphere I11 to rotate in the circular plate I12 by a certain angle, when the photoacoustic imaging system body is started, the motor rotates to drive the cylinder III 32 to rotate, the cylinder III 32 rotates on the cylinder I30 in a spiral way to pull the cylinder II 31 to move rightwards, the second cylinder 31 drives the second cables 33 to pull the corresponding second baffles 18 to turn right, the second baffles 18 drive the third baffles 19 to synchronously turn over so that the first baffles 17 are exposed, when the second baffles 18 turn over, the second baffles 18 drive the corresponding connecting blocks 21 to drive the first cables 22 to slide in the corresponding first guide rings 23, the first cables 22 pull the second scrapers 25 to rotate on the first scrapers 24 by a certain angle, the second scrapers 25 rotate to drive the corresponding sliding plates 29 to slide in the corresponding first sliding grooves 26 to compress the corresponding first springs 28, the second scrapers 25 are separated from the first scrapers 24, the part, which is formed by the circle formed by the four second scrapers 25 and the first scrapers 24, of the light source emitted by the light source emitter body 10 is opened by the second scrapers 25, and the second scrapers 25 wipe the first baffles 17 in the rotating process.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A high-sensitivity anti-interference photoacoustic imaging system, comprising a light source emitter body (10), characterized in that: the light source emitter body (10) is movably connected with the photoacoustic imaging system body through a first-order buffer mechanism, the first-order buffer mechanism comprises a first sphere (11), a first circular plate (12), a second circular plate (13), a first arc piece (14), a second sphere (15), a second arc piece (16) and a first baffle plate (17), the light source emitter body (10) penetrates through the first sphere (11) and the light source emitter body (10) is fixedly connected with the first sphere (11), the first sphere (11) is sleeved in the first circular plate (12) and the first sphere (11) is rotatably connected with the first circular plate (12), the second sphere (15) is fixedly connected with the first circular plate (12), the first arc piece (14) is fixedly connected with the second arc piece (16), the first arc piece (14) is fixedly connected with the second circular plate (13), the second sphere (15) is in sliding connection with the second arc piece (16), the second circular plate (13) is fixedly connected with the photoacoustic imaging system body, the first baffle (17) is fixedly connected with the left end face of the light source emitter body (10), the longitudinal joint section of the first arc piece (14) and the second arc piece (16) is C-shaped, the longitudinal section of the second sphere (15) is circular, and a second-order protection mechanism is further arranged at the end face of the light source emitter body (10);
the longitudinal section of the first sphere (11) is circular, the longitudinal section of the second circular plate (13) is circular, the longitudinal section of the first circular plate (12) is circular, a groove matched with the first circular plate (12) is formed in the inner circumferential surface of the second circular plate (13), the opening of the first arc plate (16) faces the circular direction of the first circular plate (12), the opening of the first arc plate (14) faces the circular direction far away from the first circular plate (12), the second sphere (15) is positioned at the opening of the second arc plate (16), a plurality of second spheres (15) are arranged, the plurality of second spheres (15) are equally placed on the circumferential surface of the first circular plate (12), and the first arc plate (14) and the second arc plate (16) are arranged on each second sphere (15) in the same mode;
the second-order protection mechanism comprises a first cylinder (30), a second cylinder (31), a third cylinder (32), a cable second (33) and a second baffle (18), wherein the second baffle (18) is rotationally connected with the left end face of the light source emitter body (10), the first cylinder (30) is sleeved outside the light source emitter body (10) and fixedly connected with the light source emitter body (10), the second cylinder (31) is slidably connected with the first cylinder (30), the third cylinder (32) is in threaded connection with the first cylinder (30), the left end face of the second cylinder (31) is rotationally connected with the right end face of the second cylinder (31), one end of the cable second (33) is fixedly connected with the left end face of the second cylinder (31), and the other end of the cable second (33) is fixedly connected with the second baffle (18);
the horizontal section of the second baffle plates (18) is trapezoid, the number of the second baffle plates (18) is four, the four second baffle plates (18) together form a hollow rectangular pyramid, the same second cable (33) is arranged on each second baffle plate (18), the longitudinal section of the first column body (30) is circular, and the second column body (31) and the third column body (32) are hollow cylinders;
the second-order protection mechanism further comprises a connecting block (21), a first cable (22) and a first guide ring (23), wherein the connecting block (21) is fixedly connected with the second baffle plate (18), the first guide ring (23) is fixedly connected with the left end face of the light source emitter body (10), one end of the first cable (22) is fixedly connected with the connecting block (21), the first cable (22) penetrates through the first guide ring (23), and the other end of the first cable (22) is movably connected with the light source emitter body (10) through a wiping mechanism;
the wiping mechanism comprises a third baffle (19), a first scraper (24) and a second scraper (25), wherein the third baffle (19) is fixedly connected with the second baffle (18), the second scraper (25) is rotationally connected with the first scraper (24) and is fixedly connected with the light source emitter body (10), and the other end of the first cable (22) is fixedly connected with the second scraper (25).
2. The high-sensitivity anti-interference photoacoustic imaging system of claim 1, wherein: the number of the baffles III (19) is four, the four baffles III (19) are fixedly connected with the left end face of the corresponding baffle II (18), the four baffles III (19) jointly form a cube, the cube formed by the four baffles III (19) is matched with the opening of the rectangular pyramid formed by the four baffles II (18), the number of the scrapers II (25) and the scrapers I (24) is four, the four scrapers I (24) and the four scrapers II (25) jointly form a circle, the diameter of the circle is three times that of the diameter of the baffle I (17), and the circle formed by the four scrapers I (24) and the four scrapers II (25) is not coincident with the circle center of the baffle I (17).
3. The high-sensitivity anti-interference photoacoustic imaging system of claim 1, wherein: the wiping mechanism further comprises a first sliding chute (26), an arc-shaped plate (27), a first spring (28) and a sliding plate (29), wherein the arc-shaped plate (27) is fixedly connected with the first scraping plate (24), the first sliding chute (26) is arranged on the arc-shaped plate (27), the sliding plate (29) is slidably connected with the first sliding chute (26) and the sliding plate (29) is rotatably connected with the second scraping plate (25), one end of the first spring (28) is fixedly connected with the arc-shaped plate (27), and the other end of the first spring (28) is fixedly connected with the sliding plate (29).
4. A high sensitivity anti-interference photoacoustic imaging system according to claim 3, wherein: the transverse section of the arc-shaped plate (27) is arc-shaped, the transverse section of the first sliding groove (26) is fan-shaped, the first sliding groove (26) is matched with the sliding plate (29), and the four second scraping plates (25) are provided with the same first sliding groove (26), the arc-shaped plate (27), the first spring (28) and the sliding plate (29) in the same mode.
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