CN113464795A - Ray detector of nuclear medicine imaging equipment - Google Patents
Ray detector of nuclear medicine imaging equipment Download PDFInfo
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- CN113464795A CN113464795A CN202110852459.4A CN202110852459A CN113464795A CN 113464795 A CN113464795 A CN 113464795A CN 202110852459 A CN202110852459 A CN 202110852459A CN 113464795 A CN113464795 A CN 113464795A
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- 238000009206 nuclear medicine Methods 0.000 title claims abstract description 18
- 238000003384 imaging method Methods 0.000 title claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 239000013078 crystal Substances 0.000 claims abstract description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims 1
- 230000002285 radioactive effect Effects 0.000 description 6
- 238000002059 diagnostic imaging Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Abstract
The invention discloses a ray detector of nuclear medicine imaging equipment, which comprises a base and an upper computer, wherein the bottom of the base is provided with a mounting groove, a base moving mechanism is installed in the mounting groove, a semi-cylindrical fixed shielding cover is fixed at the top of the base, the upper computer is installed on the side edge of the fixed shielding cover, a radiation detection mechanism is installed in the fixed shielding cover through a lifting mechanism, and the radiation detection mechanism comprises a lifting seat, a rotating seat, a gear ring, a gear, a fourth motor, a detection cylinder, a sleeve, a convex lens, a support, a photoelectric converter and a scintillation crystal layer. The invention is convenient for integral movement and stable placement, is flexible and convenient to use, can realize comprehensive radiation detection on the height direction of the human body, and can realize comprehensive radiation detection on the circumferential direction of the human body.
Description
Technical Field
The invention relates to the technical field of ray detectors, in particular to a ray detector of nuclear medicine imaging equipment.
Background
Nuclear medicine, also known as atomic (nuclear) medicine, is the science of research isotope and nuclear radiation medical application and theoretical basis, and the most important characteristic of nuclear medicine is to provide functional changes of various tissues in the body, wherein the functional changes often occur in early stage of diseases. The radiation detector is a device for converting the energy of radiation into an electric signal for recording, which receives the radiation and then generates an electric signal proportional to the intensity of the radiation, and is a complete set of equipment for detecting the radiation, and the detected radiation is not emitted by the radiation detector, but is emitted by the external radiation, which is generally emitted by the nuclide drugs injected by the patient. Thus, the radioactive preparation is injected by human body, the radioactive preparation is a radioactive medicine containing radioactive nuclide in preparation molecule, the radioactive detector can detect and record the kind, quantity (intensity) and energy (energy spectrum) of the ray emitted by radioactive isotope, its basic principle is that the ray generates fluorescence in the crystal, the photon is projected onto the photocathode of photomultiplier by means of light collector formed from light guide and reflector to shoot out photoelectron, the photoelectron is multiplied and accelerated in the photomultiplier to form current pulse output on the anode, the height of current pulse is proportional to the energy output of ray, the number of current pulse is proportional to the number of photons incident on the crystal from radiation source, i.e. proportional to the activity of radiation source, and can be developed by means of computer processing.
The existing ray detector finds that the handheld radiation detector measures inaccurate measurement due to objective reasons such as distance or uneven distribution of medicines in a human body, so that the possibility of discharge is higher than the standard, and ECT scanning is used for I131 imaging, but the scanning cost is too high, and meanwhile, resource waste is caused, and the ray detector of the nuclear medicine imaging equipment is provided aiming at the problem.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a ray detector of a nuclear medicine imaging device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a ray detector of nuclear medicine imaging equipment comprises a base and an upper computer, wherein a mounting groove is formed in the bottom of the base, a base moving mechanism is installed in the mounting groove, a semi-cylindrical fixed shielding cover is fixed to the top of the base, the upper computer is installed on the side edge of the fixed shielding cover, a radiation detection mechanism is installed in the fixed shielding cover through a lifting mechanism, the radiation detection mechanism comprises a lifting seat, a rotating seat, a gear ring, a gear, a fourth motor, a detection barrel, a sleeve, a convex lens, a support, a photoelectric converter and a scintillation crystal layer, the lifting seat is of an annular structure, the fourth motor is installed on the top of the lifting seat, the gear is installed on an output shaft of the fourth motor, the annular rotating seat is sleeved on the inner portion of the lifting seat, the gear ring is fixedly sleeved on the outer portion of the rotating seat, and the gear ring is in meshed transmission with the gear, the photoelectric detector is characterized in that a plurality of sleeves are fixed on the inner wall of the rotating seat, a detection barrel is detachably mounted inside the sleeve, a scintillation crystal layer, a convex lens and a support are sequentially mounted inside the detection barrel, and a photoelectric converter is mounted on the support.
Preferably, the base moving mechanism comprises a second motor, a first slider, a first lead screw, a support rod and a roller, the second motor is installed in an installation groove in the bottom of the base, an output shaft of the second motor is connected with the first lead screw, two first sliders are sleeved on the first lead screw through threads in opposite directions in a rotating mode and are installed in the installation groove in a sliding mode, the two first sliders are hinged to the support rod, the two support rod is arranged in an X-shaped mode, the two support rods are hinged to the two support rods, and the roller is installed at the bottom end of each support rod.
Preferably, a first motor is installed at the top of the fixed shielding cover, a semi-cylindrical movable shielding cover is fixed on an output shaft of the first motor, and the top inside the movable shielding cover is provided with the non-radiative energy-saving lamp.
Preferably, the lifting mechanism comprises a third motor, a lifting plate, a second slider and a second lead screw, the third motor is mounted at the top inside the fixed shielding cover, an output shaft of the third motor is connected with the second lead screw, the lifting plate is sleeved on the second lead screw through threads, the second slider is fixed on the side edge of the lifting plate, a first sliding groove is formed in the inner wall of the fixed shielding cover, the second slider is slidably mounted in the first sliding groove, and the lifting seat is fixed on the lifting plate.
Preferably, be provided with the shielding layer on the inner wall of a detection section of thick bamboo, the side on scintillation crystal layer is provided with waterproof film layer, waterproof film layer's side is provided with prevents scraping the thin layer.
Preferably, the outer part of the detection barrel is fixedly sleeved with a fixing ring, and the fixing ring is provided with a distance meter.
Preferably, two symmetrically-arranged positioning beads are mounted on the side edge of the detection barrel, two symmetrically-arranged positioning holes are formed in the side edge of the sleeve, and the positioning beads are matched with the positioning holes for use.
Preferably, a plurality of grooves are formed in the inner wall of the rotating seat, a second quick-connection plug is connected to the inside of each groove through a second connecting line, a first quick-connection plug is connected to the photoelectric converter through a first connecting line, and the photoelectric converter is connected with an upper computer through the first connecting line, the first quick-connection plug, the second quick-connection plug and the second connecting line.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the second motor drives the first screw rod to rotate, the first screw rod drives the two first sliding blocks to move in the opposite direction or in the opposite direction through the threads with opposite rotation directions, so that the two rollers with the functions can be driven to ascend or descend through the supporting rod, when the rollers are supported on the ground, the base can move through the rollers, and after the rollers are separated from the ground, the base can be directly placed on the ground, so that the whole movement and stable placement are convenient, and the use is flexible and convenient.
2. In the invention, the third motor drives the second screw rod to rotate, and the second screw rod drives the lifting plate to move in the vertical direction through threads, so that the comprehensive radiation detection on the height direction of a human body can be realized; the lifting plate drives the radiation detection mechanism to move in the vertical direction, the fourth motor drives the gear to rotate, and the gear ring and the gear are in meshing transmission to drive the rotating seat to rotate, so that comprehensive radiation detection on the circumference of a human body can be realized; after the ray got into the detection section of thick bamboo, become the light signal by high energy particle ray through scintillation crystal layer, the light signal passes through convex lens focus and assembles on photoelectric converter and change the signal of telecommunication, and the signal of telecommunication loops through first connecting wire, first fast connector, the fast connector of second, second connecting wire and transmits the host computer to realize the collection of signal, and generate the image after with signal amplification by the host computer, accomplish the detection process.
3. According to the invention, the signal line is conveniently and quickly connected through the first connecting line, the first quick-connection plug, the second quick-connection plug and the second connecting line, the detection cylinder is convenient to mount and dismount through the positioning ball, and the position information of the measuring point can be obtained through the distance meter, so that the positioning is convenient.
Drawings
Fig. 1 is a cross-sectional view of a radiation detector of a nuclear medical imaging apparatus according to the present invention;
fig. 2 is a schematic structural diagram of a base moving mechanism of a radiation detector of a nuclear medical imaging device according to the present invention;
fig. 3 is a schematic structural diagram of a lifting mechanism of a radiation detector of a nuclear medical imaging device according to the present invention;
fig. 4 is a schematic structural diagram of a radiation detection mechanism of a radiation detector of a nuclear medical imaging device according to the present invention;
FIG. 5 is a partial schematic view of the position A in FIG. 4;
fig. 6 is a cross-sectional view of a detection cylinder of a radiation detector of a nuclear medical imaging device according to the present invention.
In the figure: the device comprises a base 1, a base 2, a base moving mechanism 21, a second motor 22, a first sliding block 23, a first screw rod 24, a supporting rod 25, a roller 3, a fixed shielding cover 3, a lifting mechanism 4, a third motor 41, a lifting plate 42, a second sliding block 43, a second screw rod 44, a backup plate 5, a radiation detection mechanism 6, a lifting seat 601, a rotating seat 602, a ring gear 603, a gear 604, a fourth motor 605, a first quick-connection plug 606, a positioning bead 607, a distance meter 608, a fixing ring 609, a detection cylinder 610, a sleeve 611, a first connection wire 612, a second quick-connection plug 613, a second connection wire 614, a convex lens 615, a support 616, a photoelectric converter 617, a shielding layer 618, a scintillation crystal layer 619, a waterproof film layer 620, a scratch-proof film layer 621, a first motor 7, a movable shielding cover 8 and a radiationless energy-saving lamp 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1, 4, 5 and 6, a radiation detector of nuclear medicine imaging equipment comprises a base 1 and an upper computer 10, wherein the bottom of the base 1 is provided with a mounting groove, a base moving mechanism 2 is mounted in the mounting groove, a semi-cylindrical fixed shielding cover 3 is fixed on the top of the base 1, the upper computer 10 is mounted on the side edge of the fixed shielding cover 3, a radiation detection mechanism 6 is mounted in the fixed shielding cover 3 through a lifting mechanism 4, the radiation detection mechanism 6 comprises a lifting seat 601, a rotating seat 602, a gear ring 603, a gear 604, a fourth motor 605, a detection cylinder 610, a sleeve 611, a convex lens 615, a support 616, a photoelectric converter 617 and a scintillation crystal layer 619, the lifting seat 601 is of an annular structure, the fourth motor 605 is mounted on the top of the lifting seat 601, the gear 604 is mounted on an output shaft of the fourth motor 605, the annular rotating seat 602 is rotatably sleeved in the lifting seat 601, the fixed ring gear 603 that has cup jointed in outside of rotating seat 602, ring gear 603 and gear 604 meshing transmission, be fixed with a plurality of sleeve 611 on the inner wall of rotating seat 602, the inside demountable installation of sleeve 611 has a detection section of thick bamboo 610, scintillation crystal layer 619 is installed in proper order to the inside of detecting section of thick bamboo 610, convex lens 615, support 616, install photoelectric converter 617 on the support 616, first motor 7 is installed at the top of fixed shield cover 3, the output shaft of first motor 7 is fixed with half-cylinder's movable shield cover 8, radiationless electricity-saving lamp 9 is installed at the inside top of movable shield cover 8.
Example 2:
referring to fig. 2, the base moving mechanism 2 includes a second motor 21, a first slider 22, a first lead screw 23, a support rod 24, a roller 25, the second motor 21 is installed in the mounting groove of the bottom of the base 1, an output shaft of the second motor 21 is connected with the first lead screw 23, two first sliders 22 are sleeved on the first lead screw 23 through threads with opposite rotating directions, two first sliders 22 are slidably installed in the mounting groove, two first sliders 22 are hinged to the support rod 24, two support rods 24 are arranged in an X shape, two support rods 24 are hinged to each other, and the roller 25 is installed at the bottom ends of the two support rods 24.
Example 3:
referring to fig. 3, the lifting mechanism 4 includes a third motor 41, a lifting plate 42, a second slider 43 and a second lead screw 44, the third motor 41 is installed at the top inside the fixed shielding case 3, an output shaft of the third motor 41 is connected with the second lead screw 44, the lifting plate 42 is sleeved on the second lead screw 44 through a thread, the second slider 43 is fixed on the side of the lifting plate 42, a first sliding groove is formed in the inner wall of the fixed shielding case 3, the second slider 43 is slidably installed in the first sliding groove, and the lifting seat 601 is fixed on the lifting plate 42.
Example 4:
referring to fig. 4, 5 and 6, a shielding layer 618 is disposed on the inner wall of the detecting cylinder 610, a waterproof film layer 620 is disposed on the side of the scintillation crystal layer 619, a scratch-resistant film layer 621 is disposed on the side of the waterproof film layer 620, a fixing ring 609 is fixedly sleeved outside the detecting cylinder 610, a distance meter 608 is mounted on the fixing ring 609, two symmetrically-arranged positioning beads 607 are mounted on the side of the detecting cylinder 610, two symmetrically-arranged positioning holes are formed on the side of the sleeve 611, the positioning beads 607 are used in cooperation with the positioning holes, a plurality of grooves are formed on the inner wall of the rotating seat 602, a second quick-connect plug 613 is connected in each groove through a second connecting wire 614, a first quick-connect plug 606 is connected to a photoelectric converter 617 through a first connecting wire 612, and the photoelectric converter 617 through the first connecting wire 612, the first quick-connect plug 606, the second quick-connect plug 613 and the second connection line 614 are connected to the upper computer 10.
The working principle is as follows:
in the invention, the second motor 21 drives the first screw rod 23 to rotate, the first screw rod 23 drives the two first sliding blocks 22 to move in an opposite direction or in an opposite direction through the threads with opposite rotation directions, so that the two rollers 25 with functions can be driven to ascend or descend through the support rod 24, when the rollers 25 are supported on the ground, the base 1 can move through the rollers 25, and after the rollers 25 are separated from the ground, the base 1 can be directly placed on the ground, so that the integral movement and stable placement are convenient, and the use is flexible and convenient.
The third motor 41 drives the second screw rod 44 to rotate, and the second screw rod 44 drives the lifting plate 42 to move in the vertical direction through threads, so that the comprehensive radiation detection of the height direction of a human body can be realized; the lifting plate 42 drives the radiation detection mechanism 6 to move in the vertical direction, the fourth motor 605 drives the gear 604 to rotate, and the rotating seat 602 can be driven to rotate through the meshing transmission of the gear ring 603 and the gear 604, so that the comprehensive radiation detection of the circumference of the human body can be realized; after the radiation enters the detection cylinder 610, the high-energy particle radiation is converted into an optical signal through the scintillation crystal layer 619, the optical signal is focused through the convex lens 615 and converged on the photoelectric converter 617 and converted into an electrical signal, the electrical signal is transmitted to the upper computer 10 through the first connecting line 612, the first quick-connection plug 606, the second quick-connection plug 613 and the second connecting line 614 in sequence, the signal collection is realized, the signal is amplified by the upper computer 10 and an image is generated, and the detection process is completed.
Through the first connecting line 612, the first quick-connect plug 606, the second quick-connect plug 613 and the second connecting line 614 which are arranged, the signal line is conveniently and quickly connected, the detection cylinder 610 is convenient to mount and dismount through the positioning ball 607, the position information of a measuring point can be obtained through the distance meter 608, and the positioning is convenient.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a ray detector of nuclear medicine imaging equipment, includes base (1) and host computer (10), its characterized in that, the mounting groove has been seted up to the bottom of base (1), install base moving mechanism (2) in the mounting groove, the top of base (1) is fixed with half cylinder's fixed shield cover (3), host computer (10) are installed to the side of fixed shield cover (3), radiation detection mechanism (6) is installed through elevating system (4) in the inside of fixed shield cover (3), radiation detection mechanism (6) are including lift seat (601), rotation seat (602), ring gear (603), gear (604), fourth motor (605), detection section of thick bamboo (610), sleeve (611), convex lens (615), support (616), photoelectric converter (617), scintillation crystal layer (619), lift seat (601) are ring structure, fourth motor (605) is installed at the top of lift seat (601), gear (604) are installed to the output shaft of fourth motor (605), the inside of lift seat (601) is rotated and is cup jointed annular rotation seat (602), the external fixation who rotates seat (602) has cup jointed ring gear (603), ring gear (603) and gear (604) meshing transmission, be fixed with a plurality of sleeve (611) on the inner wall of rotation seat (602), the inside demountable installation of sleeve (611) has a detection section of thick bamboo (610), the inside of detection section of thick bamboo (610) is installed scintillation crystal layer (619), convex lens (615), support (616) in proper order, install photoelectric converter (617) on support (616).
2. A radiation detector of a nuclear medicine imaging device according to claim 1, the base moving mechanism (2) comprises a second motor (21), a first slide block (22), a first screw rod (23), a support rod (24) and a roller (25), the second motor (21) is arranged in a mounting groove at the bottom of the base (1), an output shaft of the second motor (21) is connected with a first screw rod (23), two first sliders (22), two are sleeved on the first screw rod (23) through rotating to opposite threads, the first sliders (22) are slidably mounted in the mounting grooves, two the first sliders (22) are hinged to supporting rods (24) and two the supporting rods (24) are arranged in an X shape, two the supporting rods (24) are hinged to each other and are connected with each other, and idler wheels (25) are mounted at the bottom ends of the supporting rods (24).
3. The radiation detector of the nuclear medicine imaging device as claimed in claim 1, characterized in that the top of the fixed shielding cover (3) is provided with a first motor (7), the output shaft of the first motor (7) is fixed with a semi-cylindrical movable shielding cover (8), and the top of the inner part of the movable shielding cover (8) is provided with a non-radiative energy-saving lamp (9).
4. The radiation detector of nuclear medicine imaging equipment according to claim 1, wherein the lifting mechanism (4) comprises a third motor (41), a lifting plate (42), a second slider (43) and a second lead screw (44), the third motor (41) is installed at the top inside the fixed shielding case (3), the output shaft of the third motor (41) is connected with the second lead screw (44), the lifting plate (42) is sleeved on the second lead screw (44) through a thread, the second slider (43) is fixed on the side edge of the lifting plate (42), a first sliding groove is formed in the inner wall of the fixed shielding case (3), the second slider (43) is slidably installed in the first sliding groove, and the lifting seat (601) is fixed on the lifting plate (42).
5. The radiation detector of nuclear medicine imaging equipment according to claim 1, characterized in that, the inner wall of the detecting cylinder (610) is provided with a shielding layer (618), the side of the scintillation crystal layer (619) is provided with a waterproof film layer (620), and the side of the waterproof film layer (620) is provided with a scratch-proof film layer (621).
6. A radiation detector of a nuclear medicine imaging device according to claim 1, characterized in that the exterior of the detecting cylinder (610) is sleeved with a fixing ring (609), and the fixing ring (609) is mounted with a distance meter (608).
7. The radiation detector of nuclear medicine imaging equipment according to claim 1, characterized in that, two symmetrically arranged positioning beads (607) are installed on the side of the detecting cylinder (610), two symmetrically arranged positioning holes are opened on the side of the sleeve (611), and the positioning beads (607) are matched with the positioning holes.
8. The radiation detector of the nuclear medicine imaging device as claimed in claim 1, wherein the inner wall of the rotating base (602) is provided with a plurality of grooves, the grooves are connected with a second quick-connect plug (613) through a second connecting line (614), the photoelectric converter (617) is connected with a first quick-connect plug (606) through a first connecting line (612), and the photoelectric converter (617) is connected with the upper computer (10) through the first connecting line (612), the first quick-connect plug (606), the second quick-connect plug (613) and the second connecting line (614).
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| CN202110852459.4A CN113464795A (en) | 2021-07-27 | 2021-07-27 | Ray detector of nuclear medicine imaging equipment |
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| CN202110852459.4A CN113464795A (en) | 2021-07-27 | 2021-07-27 | Ray detector of nuclear medicine imaging equipment |
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| EP0532152A1 (en) * | 1991-05-23 | 1993-03-17 | Adac Laboratories | Adjustable dual-detector image data acquisition system |
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