CN113616185A - Rotary multi-angle imaging nuclear magnetic resonance spectrometer - Google Patents
Rotary multi-angle imaging nuclear magnetic resonance spectrometer Download PDFInfo
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- 238000003384 imaging method Methods 0.000 title claims abstract description 28
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
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- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000002610 neuroimaging Methods 0.000 description 1
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 1
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract
The application relates to a rotary multi-angle imaging nuclear magnetic resonance instrument, which relates to the field of magnetic resonance and comprises a scanning device, wherein two sides of the scanning device are hinged on a base surface, a through hole is formed in the scanning device, and the rotation axis of the scanning device is perpendicular to the axis of the through hole; the detection bed is arranged in the through hole in a penetrating way and is connected with the scanning device in a sliding way; one end of the rotating driving source is hinged to the base surface, and the other end of the rotating driving source is hinged to the scanning device so as to drive the scanning device to rotate; and the driving component is arranged on the scanning device and drives the detection bed to slide along the axis of the through hole. The magnetic field of the motor can influence the magnetic field of the magnetic resonance equipment when the scanning device is driven to rotate through the motor.
Description
Technical Field
The application relates to the field of magnetic resonance, in particular to a rotary multi-angle imaging nuclear magnetic resonance instrument.
Background
Magnetic resonance refers to the phenomenon of spin magnetic resonance (spin magnetic resonance). It has a wide meaning, including Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR), or Electron Spin Resonance (ESR); in addition, Magnetic Resonance, which is a common term in daily life, refers to Magnetic Resonance Imaging (MRI), which is a type of Imaging apparatus for medical examination made by using the phenomenon of nuclear Magnetic Resonance.
In the related art, when the nmr is used, a patient can only image in a lying posture, and images of a skeletal muscle system, a nervous system and other systems of the patient in different postures are different, and in order to overcome the problem that liquid helium of the nmr in the prior art can only image in a horizontal static manner, a liquid helium-free superconducting technology is developed, and a nmr matched with the liquid helium-free superconducting technology to realize multi-angle imaging needs to be designed urgently.
Disclosure of Invention
In order to assist and realize patient multi-angle inspection formation of image, the application provides a rotation type multi-angle imaging nuclear magnetic resonance appearance.
The application provides a rotation type multi-angle imaging nuclear magnetic resonance appearance adopts following technical scheme:
a rotational multi-angle imaging nuclear magnetic resonance instrument, comprising:
the two sides of the scanning device are hinged to the base surface, a through hole is formed in the scanning device, and the axis of rotation of the scanning device is perpendicular to the axis of the through hole;
the detection bed is arranged in the through hole in a penetrating way and is connected with the scanning device in a sliding way;
one end of the rotating driving source is hinged to the base surface, and the other end of the rotating driving source is hinged to the scanning device so as to drive the scanning device to rotate; and
and the driving assembly is arranged on the scanning device and drives the detection bed to slide along the axis of the through hole.
By adopting the technical scheme, the imaging angle of the scanning device can be controlled by rotating the driving source, and multi-angle examination imaging of patients is realized in an auxiliary manner.
Optionally, scanning device is last to be equipped with two parallel slide rails of each other, two the slide rail is worn to locate and is worn to establish downthehole and both ends and stretch out and wear to establish the hole, the downside of detecting the bed is fixed with the fixed plate with the slide rail one-to-one, one side of fixed plate is fixed with the sliding block, be equipped with on the slide rail and supply the sliding block to inlay the sliding groove of establishing the slip.
Through adopting above-mentioned technical scheme, the sliding block inlays to be located in the sliding groove and slides in the sliding groove to slide the connection on scanning device with detecting the bed.
Optionally, the sliding block is rotatably connected with at least one roller, and the roller is in rolling contact with the side wall of the sliding groove.
Through adopting above-mentioned technical scheme, convert the sliding friction of sliding block and slide rail into rolling friction, reduced the frictional force between sliding block and the slide rail, and then reduce the resistance when detecting the bed and slide, improved the convenience when detecting the bed and slide.
Optionally, still including locating drive assembly that drives about detection bed and slide along the axis of wearing to establish the hole on the scanning device, drive assembly includes:
the number of the synchronous belt wheels is two, and the two synchronous belt wheels are rotationally connected to two axial ends of the through hole of the scanning device;
the synchronous belts are sleeved on the two synchronous belt wheels and are fixed with the detection bed so as to drive the detection bed to move;
and the synchronous belt driving source is fixed at one end of the through hole of the scanning device, and the output shaft of the scanning device is fixedly connected with the synchronous belt wheel.
Through adopting above-mentioned technical scheme, hold-in range driving source orders about synchronous pulley and rotates, and synchronous pulley drives the hold-in range and rotates, and the hold-in range drives and detects the bed and slide to realize detecting the automatic control that the bed removed.
Optionally, the driving assembly further includes an electromagnetic power-off brake, and an input end of the electromagnetic power-off brake is connected with the synchronous pulley and rotates synchronously.
Through adopting above-mentioned technical scheme for after the hold-in range driving source outage, can lose the braking of electric brake control synchronous pulley through the electromagnetism, security when having improved the nuclear magnetic resonance appearance and using.
Optionally, one end of the detection bed is provided with a foot support and a foot support locking assembly, the foot support is connected to the detection bed in a sliding manner along the axial direction of the through hole, and the foot support locking assembly locks the foot support to the detection bed.
By adopting the technical scheme, the foot support provides support for the patient lying on the detection bed, so that the patient is not easy to slide on the detection bed, and the stability of the patient lying on the detection bed is improved; the foot holds in the palm and slides and connect on detecting the bed and accessible foot holds in the palm locking subassembly and locks to make the foot hold in the palm the position on detecting the bed and can adjust according to the height of disease.
Optionally, the foot rest includes a pedal and two side plates, the two side plates are fixed on two sides of the pedal, the upper side of the detection bed is fixed with the base plate corresponding to the side plates one by one, and the lower side of the side plates is provided with a sliding groove for the base plate to be embedded and arranged to slide.
By adopting the technical scheme, the arrangement of the side plates limits the soles treaded on the pedal plate, so that the soles treaded on the pedal plate are not easy to slide off the pedal plate; the base plate is embedded in the sliding groove and connected with the side plate in a sliding mode, so that the position of the foot support on the detection bed can be adjusted according to the height of a patient.
Optionally, the foot rest locking assembly includes a threaded column and a holding block, the holding block is fixed to one end of the threaded column, the threaded column is in threaded connection with the side plate, and the base plate is provided with a plurality of locking holes arranged along the axial direction of the through hole;
when the foot support is locked on the detection bed, the threaded column is inserted into the locking hole.
Through adopting above-mentioned technical scheme, the foot holds in the palm after the position control on detecting the bed is accomplished, grips and rotates the piece that grips, orders about the screw thread post and inserts in the locking hole to hold in the palm the foot that will adjust the completion and lock on detecting the bed.
Optionally, a connecting plate fixed with the pedal is arranged on the synchronous belt, and a sliding hole for the connecting plate to slide in a penetrating manner is formed in the detection bed;
the foot rest locking assembly comprises a driving plate and two locking columns, the driving plate is arranged on one side, close to the side plates, of the pedal plate, an embedding groove for the driving plate to be embedded and slide is formed in the pedal plate, the number of the locking columns is two, the two side plates are respectively provided with a through hole for the locking columns to penetrate and slide, the through holes are communicated with the sliding grooves, the base plate is provided with a plurality of locking holes arranged along the axial direction of the through holes, driving surfaces are arranged on the two sides of the driving plate, and an adapting surface matched with the driving surfaces is arranged at one end, close to the driving plate, of each locking column;
trample the drive plate, the drive plate drives the locking post through the driving face and inserts the locking hole in the perforation cunning to lock the foot rest on detecting the bed.
Through adopting above-mentioned technical scheme, the human body lies after on detecting bed, drive assembly orders about the running-board to the direction removal of being close to the scanning support body along the axial of wearing to establish the hole, when the running-board cunning move to the sole contact with the disease, the drive plate is trampled in the sole of disease and is accomodate in inlaying and establishing the inslot, the locking post is ordered about with the interior cunning of perforation to insert the locking hole to lock the curb plate on the base plate to the driving surface extrusion adaptation face of drive plate simultaneously, drive assembly orders about the foot support and detects the bed and slides to the wearing to establish downthehole together afterwards, realized the foot support position according to the automatically regulated of disease height.
Optionally, the foot rest locking assembly further includes a guide post, a first elastic restoring member, a butting ring, and a second elastic restoring member;
the guide posts are fixed on one side, close to the pedal, of the driving plate, the number of the guide posts is at least one, through holes for the guide posts to penetrate and slide are formed in the pedal, and the first reset elastic piece is sleeved on the guide posts to enable the driving plate to keep the trend of sliding away from the embedded groove;
the butt ring is fixed in the locking post is close to one side of drive plate, be equipped with on the lateral wall of perforation opening part and supply the butt ring to inlay the caulking groove of establishing the slip, the second elastic component that resets is located on the locking post, the one end of second elastic component that resets and the tank bottom other end and the butt of caulking groove, the second elastic component that resets makes the locking post keep having the trend of being close to the drive plate.
By adopting the technical scheme, the guide columns are arranged, so that the driving plate is not easy to shake when moving relative to the pedal, and the stability of the driving plate during moving is improved; the second reset elastic piece is arranged, so that after the patient gets off the detection bed, the locking column can slide off the locking hole under the driving of the second reset elastic piece, the locking of the side plate is released, and the automatic unlocking of the foot support and the detection bed is realized; the setting of first elastic component that resets for after the disease gets off from the detection bed, the drive plate can be in the driving of first elastic component that resets gliding from inlaying and establishing the groove, has realized the automatic re-setting of drive plate.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the imaging angle of the scanning device can be controlled by rotating the driving source, so that the multi-angle examination imaging of the patient is realized in an auxiliary manner;
2. when rotating through motor drive scanning device, the magnetic field of motor can influence each other with magnetic resonance equipment's magnetic field, and this application has adopted the pneumatic cylinder to avoid the appearance of above-mentioned condition.
Drawings
FIG. 1 is a schematic structural diagram of a rotational multi-angle MRI apparatus according to embodiment 1 of the present application.
Fig. 2 is a schematic structural diagram of the scanning device and the detection bed, the driving assembly, the foot rest, and the foot rest locking assembly according to embodiment 1 of the present application.
Fig. 3 is an exploded view of the detection bed and the slide rail according to embodiment 1 of the present application.
Fig. 4 is a schematic structural view of a sliding block and a roller in embodiment 1 of the present application.
Fig. 5 is an exploded view of the foot rest and the detection bed in embodiment 1 of the present application.
Fig. 6 is a schematic structural diagram of a drive assembly according to embodiment 1 of the present application.
Fig. 7 is a schematic structural diagram of a scanning device according to an embodiment of the present application in a vertical arrangement.
Fig. 8 is a schematic structural diagram of the detection bed, the foot rest, and the foot rest locking assembly in embodiment 2 of the present application.
Fig. 9 is an exploded view of the foot rest and foot rest locking assembly according to embodiment 2 of the present application.
Description of reference numerals: 10. a scanning device; 11. perforating holes; 12. a rotating shaft; 13. a slide rail; 131. a sliding groove; 14. hinging a shaft; 15. a support table; 20. a detection bed; 21. a fixing plate; 211. a sliding block; 2111. a roller groove; 212. a roller; 22. a substrate; 221. a locking hole; 222. a limiting groove; 23. blocking edges; 24. a connecting plate; 25. an upper splint; 26. a lower splint; 27. a sliding hole; 30. a rotation drive source; 40. a base surface; 41. a support; 411. rotating the hole; 50. a drive assembly; 51. a synchronous pulley; 52. a synchronous belt; 53. a synchronous belt driving source; 54. an electromagnetic power-off brake; 55. a carrying roller; 60. a foot support; 61. a foot pedal; 611. embedding a groove; 612. a through hole; 62. a side plate; 621. a chute; 622. perforating; 623. caulking grooves; 624. a limiting block; 70. a foot rest locking assembly; 71. a threaded post; 72. a holding block; 73. a drive plate; 731. a drive face; 74. a locking post; 741. an adaptation surface; 75. a guide post; 751. a baffle ring; 76. a first return spring; 77. a butting ring; 78. and a second restoring elastic member.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
Example 1:
the embodiment of the application discloses rotation type multi-angle imaging nuclear magnetic resonance appearance. Referring to fig. 1 and 2, the rotatable multi-angle nuclear magnetic resonance imaging apparatus includes a scanning device 10, a detection bed 20, and a rotation driving source 30.
Referring to fig. 1 and 2, a scanning device 10 is hinged to a base surface 40, the scanning device realizes multi-angle examination imaging by a liquid-helium-free superconducting technology, the scanning device is common knowledge in the art, and details are not repeated herein, a frame body of the scanning device 10 may be rectangular block-shaped or cylindrical, in this embodiment, the frame body of the scanning device 10 is introduced by taking a cylindrical shape as an example, and a rotation driving source 30 is used for driving the scanning device 10 to rotate, so that the scanning device 10 can adjust an angle according to actual imaging requirements of patients. Specifically, two supports 41 are fixed on the base surface 40, the two supports 41 are respectively located on two sides of the scanning device 10, the two sides of the scanning device 10 are both fixed with the rotating shafts 12, the two rotating shafts 12 are concentrically arranged, the axes of the rotating shafts 12 intersect with the axis of the scanning device 10, the upper end of the support 41 is provided with a rotating hole 411, and the rotating shafts 12 penetrate through the rotating hole 411 and are rotatably connected with the supports 41 so as to rotatably connect the scanning device 10 to the supports 41. The rotation driving source 30 may be an oil cylinder, an air cylinder, or an electric push rod, in this embodiment, the rotation driving source 30 is described by taking an oil cylinder as an example, when the number of the oil cylinders is one, a hinge shaft 14 is fixed on one side of the scanning device 10, an axis of the hinge shaft 14 is parallel to an axis of the rotation shaft 12, the axis of the hinge shaft 14 does not coincide with the axis of the rotation shaft 12, a piston rod of the oil cylinder is hinged to the scanning device 10 through the hinge shaft 14, a cylinder body of the oil cylinder is hinged to the base surface 40, and the scanning device 10 is driven to rotate around the rotation shaft 12 through extension and contraction of the piston rod of the oil cylinder.
In order to facilitate the connection and fixation of the scanning device 10 and the rotating shaft 12, two supporting plates 16 are fixed on the scanning device 10, the two supporting plates 16 are respectively arranged at two sides of the scanning device 10, and the rotating shaft 12 is fixed on the supporting plates 16. Reinforcing plates 17 are fixed to both ends of the supporting plate 16, and the reinforcing plates 17 are respectively connected to both ends of the scanning device 10 to provide support for the scanning device 10 in a vertical or inclined arrangement.
Referring to fig. 2 and 3, a through hole 11 is formed in the scanning device 10, the through hole 11 and the scanning device 10 are concentrically arranged, two ends of the through hole 11 penetrate through two axial ends of the scanning device 10, the detection bed 20 is arranged in the through hole 11 in a penetrating manner, and the detection bed 20 is connected with the scanning device 10 in a sliding manner. Specifically, two fixing plates 21 are fixed on the lower side of the detection bed 20, the two fixing plates 21 are arranged along the axis of the scanning device 10, the two fixing plates 21 are parallel to each other, a plurality of sliding blocks 211 are fixed on one side of the fixing plates 21, the plurality of sliding blocks 211 are uniformly arranged along the length direction of the fixing plates 21, a support platform 15 is fixed on each of the two axial ends of the scanning device 10, two sliding rails 13 are arranged on the support platform 15, the sliding rails 13 are arranged in the through holes 11 in a penetrating manner, the two ends of the two sliding rails 13 are respectively fixed on the upper sides of the two support platforms 15 in a one-to-one correspondence manner, a sliding groove 131 is formed in one side of the sliding rail 13, the sliding blocks 211 are embedded in the sliding groove 131 for sliding, so as to connect the detection bed 20 to the scanning device 10 in a sliding manner, the two fixing plates 21 can be respectively located on the outer sides of the two sliding rails 13, the two fixing plates 21 can also be located between the two sliding rails 13, the other one of the two fixing plates 21 can be located on the outer sides of the two sliding rails 13, in order to make the detection bed 20 not easily swing along the direction perpendicular to the length direction of the slide rail 13, the embodiment is described by taking the two fixing plates 21 as an example between the two slide rails 13, and meanwhile, the side of the sliding block 211 away from the fixing plates 21 abuts against the bottom of the sliding groove 131 to slide.
Referring to fig. 3 and 4, in order to reduce the frictional resistance between the sliding block 211 and the sliding rail 13, at least one roller 212 is rotatably connected to the sliding block 211, and the roller 212 rolls in the sliding groove 131 to convert the sliding friction between the sliding block 211 and the sliding rail 13 into rolling friction. Specifically, when the roller 212 is one, the roller 212 may be horizontally disposed or vertically disposed, the sliding block 211 is provided with a roller groove 2111 for the roller 212 to be embedded and disposed in rotation, the roller 212 is embedded in the roller groove 2111 and then is rotatably connected to the sliding block 211 through a pin, when the roller 212 is horizontally disposed, the roller 212 is in rolling abutment with the lower sidewall of the sliding groove 131, and when the roller 212 is vertically disposed, the roller 212 is in rolling abutment with the groove bottom of the sliding groove 131. When there are two rollers 212, one roller 212 is disposed horizontally, and the other roller 212 is disposed vertically. When the number of the rollers 212 is three, the two rollers 212 are vertically arranged and respectively located at two ends of the sliding block 211, and one roller 212 is horizontally arranged and located between the two rollers 212.
In order to prevent the patient from rolling off the detection bed 20, flanges 23 are fixed on both sides of the detection bed 20 in the length direction, and the flanges 23 are arranged along the length direction of the detection bed 20.
Referring to fig. 3 and 5, in order to support the patient's steps on the detection bed 20, one end of the detection bed 20 is provided with a foot support 60, and the foot support 60 may be slidably connected to one end of the detection bed 20, or may be fixed to one end of the detection bed 20. Specifically, the footrest 60 includes two foot plates 61 and side plates 62, and the two side plates 62 are fixed to both sides of the foot plate 61 to limit the sole of the foot placed on the foot plate 61 so that the sole of the foot placed on the foot plate 61 is not easily slid off the foot plate 61 from both sides of the foot plate 61. Two base plates 22 are fixed on the detection bed 20, the base plates 22 are arranged along the length direction of the detection bed 20, a sliding groove 621 is formed in the lower side of the side plate 62, and the sliding groove 621 is used for the base plates 22 to be embedded and slide so as to connect the foot supports 60 on the base plates 22 in a sliding manner.
The foot support locking assembly 70 comprises a threaded column 71, the threaded column 71 is in threaded connection with a side plate 62, threaded holes and sliding grooves 621 corresponding to the threaded column 71 on the side plate 62 are communicated with each other, a plurality of locking holes 221 are formed in the base plate 22, the locking holes 221 can be uniformly arranged along the length direction of the base plate 22 and can also be arranged at unequal intervals, and the locking holes 221 are used for the threaded column 71 to penetrate through so as to lock the adjusted foot support 60 on the detection bed 20.
In order to facilitate the rotation of the threaded post 71, the foot rest locking assembly 70 further includes a holding block 72, the holding block 72 is fixed to a side of the threaded post 71 away from the foot rest 60, and the holding block 72 is used to increase a holding area of the foot rest locking assembly 70, so as to facilitate the operator to hold and rotate the foot rest locking assembly 70.
Referring to fig. 3 and 6, in order to drive the detection bed 20 to slide in the through hole 11, a driving assembly 50 is disposed on the scanning device 10, and the driving assembly 50 includes a synchronous pulley 51, a synchronous belt 52 and a synchronous belt driving source 53. Specifically, the number of the synchronous pulleys 51 is two, the two synchronous pulleys 51 are respectively rotatably connected to the two support tables 15, the synchronous belt 52 is sleeved on the two synchronous pulleys 51 and is mutually engaged with the synchronous pulleys 51, the synchronous belt driving source 53 is fixed on one support table 15, the synchronous belt driving source 53 is used for driving the synchronous pulleys 51 to rotate, the output end of the synchronous belt driving source 53 can be directly connected with the rotating shaft of the synchronous pulleys 51, can also be connected with the rotating shaft of the synchronous pulleys 51 through belt transmission, and can also be connected with the rotating shaft of the synchronous pulleys 51 through gear transmission, and the output end of the synchronous belt driving source 53 in this embodiment is connected with the rotating shaft of the synchronous pulleys 51 through gear transmission. The timing belt driving source 53 may be a servo motor or an ultrasonic motor, and in this embodiment, the timing belt driving source 53 is described by taking an ultrasonic motor as an example.
Hold-in range 52 and the downside fixed connection who detects bed 20, specifically, the downside that detects bed 20 is fixed with connecting plate 24, and the downside of connecting plate 24 is fixed with punch holder 25, and the downside of punch holder 25 is fixed with lower plate 26, and punch holder 25 presss from both sides tight hold-in range 52 with the lower plate 26 cooperation to realize that hold-in range 52 drives the removal that detects bed 20.
In order to enable the detection bed 20 to be vertically arranged, the synchronous belt 52 can bear the weight of the detection bed 20 and the human body on the detection bed 20, and the synchronous belt 52 is a non-magnetic high-strength synchronous belt.
In order to make the upper and lower jaws 25 and 26 less liable to slide on the timing belt 52, the upper side of the lower jaw 26 is provided with engaging teeth (not shown) which are engaged with the teeth of the timing belt 52.
In order to make the synchronous pulley 51 not easy to rotate after power failure, the driving assembly 50 further includes an electromagnetic power-off brake 54, the electromagnetic power-off brake 54 is common knowledge in the art, and details are not described herein, an input end of the electromagnetic power-off brake 54 may be directly and fixedly connected with a rotating shaft of another synchronous pulley 51, may also be connected with a rotating shaft of another synchronous pulley 51 through belt transmission, and may also be connected with a rotating shaft of another synchronous pulley 51 through gear transmission, in this embodiment, the input end of the electromagnetic power-off brake 54 is described by taking the example of being connected with a rotating shaft of another synchronous pulley 51 through belt transmission.
In order to increase the distance between the lower synchronous belt 52 and the support platforms 15, at least one tension roller 55 is rotatably connected to each support platform 15, so that the lower synchronous belt 52 is not easy to rub against the support platforms 15 when swinging, and the synchronous belt 52 is not easy to swing when bearing the weight of the human body on the detection bed 20 and the detection bed 20; when the number of the tension rollers 55 is one, the tension rollers 55 are arranged at the lower side of the middle of the two synchronous pulleys 51; when the number of the tension rollers 55 is two or more, the two or more tension rollers 55 are provided between the two timing pulleys 51 at intervals.
Referring to fig. 7, at this time, the scanning device 10 is driven by the rotation driving source 30 to rotate to a vertical state, in order to reduce the heights of the bracket 41 and the scanning device 10, the base surface 40 is provided with an accommodating groove 42, and when the scanning device 10 is in the vertical state, one end of the detection bed 20, which is provided with the foot rest 60, is embedded in the accommodating groove 42. At the moment, the patient is in a standing state, the imaging in the state is convenient for the research of blood perfusion and spine imaging, and the brain activity of the person in the state is more consistent with the actual situation, so that the brain imaging is more accurate.
The implementation principle of the rotary multi-angle imaging nuclear magnetic resonance spectrometer in the embodiment of the application is as follows: initially, the axis of scanning device 10 is the level setting, detect bed 20 from its one end roll-off wearing hole 11 that is equipped with foot support 60, adjust the position that foot support 60 was held in the palm and lock through foot support locking component 70 according to the height of disease, the disease lies on detecting bed 20 after, drive assembly 50 and order to detect bed 20 and slide to wearing hole 11 in, drive scanning device 10 through rotating drive source 30 according to the needs that detect and rotate the contained angle of adjusting scanning device 10 axis and horizontal direction, then scan the formation of image. After scanning and imaging, the scanning device 10 is driven to rotate by the rotary driving source 30, so that the axis of the scanning device 10 is horizontally arranged, the detection bed 20 is driven to slide out of the through hole 11 by the driving assembly 50, and the patient can move down the detection bed 20.
Example 2:
referring to fig. 7 and 8, the difference from embodiment 1 is that the connection plate 24 passes through the detection bed 20 and is fixedly connected with the pedal 61, a sliding hole 27 is formed in the detection bed 20, the sliding hole 27 is arranged along the length direction of the detection bed 20, the sliding hole 27 is used for the connection plate 24 to pass through, and the connection plate 24 can slide in the sliding hole 27 along the length direction of the detection bed 20.
The foot rest locking assembly 70 includes a drive plate 73, a locking post 74, a guide post 75, a first return spring 76, an abutment ring 77 and a second return spring 78. The driving plate 73 is slidably connected to the pedal 61, specifically, the driving plate 73 is disposed on one side of the pedal 61 close to the side plates 62, the driving plate 73 is located between the two side plates 62, the pedal 61 is provided with an embedding groove 611, and the embedding groove 611 is used for the driving plate 73 to be embedded and slid. The number of the guide posts 75 is at least one, the guide posts 75 are fixed on the drive plate 73, the guide posts 75 extend towards the direction away from the side plate 62, the pedal plate 61 is provided with through holes 612, the through holes 612 allow the guide posts 75 to penetrate and slide so as to guide the drive plate 73 to be connected on the pedal plate 61 in a sliding manner, and when the number of the guide posts 75 is one, one ends of the guide posts 75 are fixed at the center of the drive plate 73; when the number of the guide posts 75 is two or more, the plane formed by the axes of the two or more guide posts 75 is horizontally disposed and equally divides the drive plate 73. The second elastic return element 78 is a compression spring, which is sleeved on the guide post 75, one end of the compression spring is in contact with the bottom of the embedding groove 611, and the other end of the compression spring is in contact with one side of the drive plate 73 close to the guide post 75, so that the drive plate 73 keeps a tendency of sliding away from the embedding groove 611.
The pedal 61 is provided with through holes 622, the through holes 622 correspond to the side plates 62 one by one, the through holes 622 are communicated with the embedding grooves 611, the through holes 622 extend from the pedal 61 to the side plates 62, one side of the through holes 622, which is far away from the driving plate 73, is communicated with the sliding grooves 621, the axes of the through holes 622 are parallel to the axes of the locking holes 221, the axes of the through holes 622 and the axes of the locking holes 221 are located on the same plane, and the locking posts 74 penetrate through the through holes 622 and are connected with the pedal 61 in a sliding mode. The driving plate 73 is provided with driving surfaces 731 on both sides, the driving surfaces 731 are provided on both edges of the driving plate 73 near the guide post 75, the driving surfaces 731 are arranged in a direction inclined from the side plate 62 to the foot board 61 toward a direction away from the side plate 62, and the locking post 74 is provided with an adapting surface 741 adapted to the driving surfaces 731 on a side near the driving plate 73. First elastic component 76 that resets is compression spring, the caulking groove 623 has been seted up on the perforation 622 is close to the lateral wall of drive plate 73 opening part, compression spring cover is located on the locking post 74 and is inlayed and locate in the caulking groove 623, butt ring 77 is fixed in on the lateral wall of locking post 74, butt ring 77 can inlay and locate in the caulking groove 623 and slide in the caulking groove 623, compression spring's one end and the tank bottom butt of caulking groove 623, compression spring's the other end and the butt ring 77 keep away from the one side butt of drive plate 73, so that locking post 74 keeps having the trend of roll-off locking hole 221.
In order to make the guide post 75 not easily slide out of the through hole 612, a stopper ring 751 is fixed to an end of the guide post 75 away from the driving plate 73, and the diameter of the stopper ring 751 is larger than that of the through hole 612 to prevent the guide post 75 from sliding out of the through hole 612.
In order to prevent the side plate 62 from sliding in the direction away from the detection bed 20 when sliding on the base plate 22, the two opposite side walls of the lower side of the base plate 22 are both provided with a limiting groove 222, the two opposite side walls of the sliding groove 621 are both fixed with a limiting block 624, and the limiting block 624 is embedded in the limiting groove 222 and slides in the limiting groove 222 to prevent the side plate 62 from sliding in the direction away from the detection bed 20.
The implementation principle of the rotary multi-angle imaging nuclear magnetic resonance spectrometer in the embodiment of the application is as follows: initially, the axis of the scanning device 10 is horizontally disposed, the detection bed 20 slides out of the through hole 11 from the end thereof provided with the foot support 60, after the human body lies on the detection bed 20, the driving assembly 50 drives the foot pedal 61 to move toward the direction close to the scanning frame body along the axial direction of the through hole 11, when the foot pedal 61 slides to contact with the sole of the patient, the driving plate 73 is placed in the embedding groove 611 under the stepping of the sole of the patient, and simultaneously the driving surface 731 of the driving plate 73 extrudes the adapting surface 741 to drive the locking post 74 and the through hole 622 to slide and insert into the locking hole 221 so as to lock the side plate 62 on the base plate 22, and then the driving assembly 50 drives the foot support 60 and the detection bed 20 to slide together into the through hole 11, thereby realizing the automatic adjustment of the position of the foot support 60 according to the height of the patient. The scanning device 10 is driven to rotate by the rotating driving source 30 according to the detection requirement to adjust the included angle between the axis of the scanning device 10 and the horizontal direction, and then scanning imaging is carried out. After scanning and imaging, the scanning device 10 is driven to rotate by the rotary driving source 30, so that the axis of the scanning device 10 is horizontally arranged, the foot rest 60 and the detection bed 20 are driven to slide out of the through hole 11 by the driving assembly 50, the patient moves down the detection bed 20, the driving plate 73 is driven to reset by the first reset elastic piece 76, the locking column 74 slides away from the locking hole 221 under the drive of the second reset elastic piece 78, and the locking of the foot rest 60 is released.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A rotary multi-angle imaging nuclear magnetic resonance spectrometer, comprising:
the scanning device (10) is hinged to the base surface (40) on two sides, a through hole (11) is formed in the scanning device (10), and the axis of rotation of the scanning device (10) is perpendicular to the axis of the through hole (11);
the detection bed (20) is arranged in the through hole (11) in a penetrating way and is connected with the scanning device (10) in a sliding way;
one end of the rotating driving source (30) is hinged to the base surface (40), and the other end of the rotating driving source is hinged to the scanning device (10) so as to drive the scanning device (10) to rotate; and
and the driving component (50) is arranged on the scanning device (10) and drives the detection bed (20) to slide along the axis of the through hole (11).
2. The rotational multi-angle imaging nuclear magnetic resonance apparatus of claim 1, wherein: be equipped with two slide rail (13) that are parallel to each other on scanning device (10), two slide rail (13) wear to locate in wearing to establish hole (11) and both ends stretch out wearing to establish hole (11), the downside that detects bed (20) is fixed with fixed plate (21) with slide rail (13) one-to-one, one side of fixed plate (21) is fixed with sliding block (211), be equipped with on slide rail (13) and supply sliding block (211) to inlay sliding groove (131) of establishing the slip.
3. The rotational multi-angle MRI scanner of claim 2, wherein: the sliding block (211) is rotatably connected with at least one roller (212), and the roller (212) rolls in the sliding groove (131).
4. The rotational multi-angle imaging NMR spectrometer of claim 1, wherein the drive assembly (50) comprises:
the number of the synchronous belt wheels (51) is two, and the two synchronous belt wheels (51) are rotationally connected to two axial ends of the scanning device (10) arranged in the through hole (11);
the synchronous belts (52) are sleeved on the two synchronous belt wheels (51) and are connected with the detection bed (20) so as to drive the detection bed (20) to move; and
and the synchronous belt driving source (53) is fixed at one end of the scanning device (10) arranged in the through hole (11), and an output shaft of the synchronous belt driving source is connected with the synchronous belt wheel (51) so as to drive the synchronous belt wheel (51) to rotate.
5. The rotational multi-angle MRI scanner according to claim 4, wherein the driving assembly (50) further comprises an electromagnetic power-off brake (54), and an input end of the electromagnetic power-off brake (54) is connected to the synchronous pulley (51) and rotates synchronously.
6. The rotational multi-angle imaging nuclear magnetic resonance apparatus of claim 1, wherein: the one end of detecting bed (20) is equipped with foot support (60) and foot support locking component (70), foot support (60) are followed the axial of wearing to establish hole (11) slide connect in detect on bed (20), foot support locking component (70) lock foot support (60) in detecting on bed (20).
7. The rotational multi-angle MRI scanner of claim 6, wherein: the foot support (60) comprises a pedal (61) and two side plates (62), the two side plates (62) are fixed on two sides of the pedal (61), the upper side of the detection bed (20) is fixed with base plates (22) which are in one-to-one correspondence with the side plates (62), and sliding grooves (621) for the base plates (22) to be embedded and slid are formed in the lower sides of the side plates (62).
8. The rotational multi-angle MRI scanner of claim 7, wherein: the foot support locking assembly (70) comprises a threaded column (71) and a holding block (72), the holding block (72) is fixed at one end of the threaded column (71), the threaded column (71) is in threaded connection with the side plate (62), and a plurality of locking holes (221) are formed in the base plate (22) and are arranged in the axial direction of the through hole (11);
when the foot rest (60) is locked on the detection bed (20), the threaded column (71) is inserted into the locking hole (221).
9. The rotational multi-angle MRI machine according to claim 7, wherein the driving assembly (50) drives the pedal (61) to slide on the detection bed (20);
the foot support locking assembly (70) comprises a driving plate (73) and locking columns (74), the driving plate (73) is arranged on one side, close to side plates (62), of a pedal plate (61), embedding grooves (611) for the driving plate (73) to be embedded and slide are formed in the pedal plate (61), the number of the locking columns (74) is two, the two side plates (62) are provided with through holes (622) for the locking columns (74) to slide in a penetrating mode, the through holes (622) are communicated with the sliding grooves (621) mutually, a plurality of locking holes (221) are formed in the base plate (22) and are arranged in the axial direction of the through holes (11), driving surfaces (731) are arranged on two sides of the driving plate (73), and an adapting surface (741) matched with the driving surfaces (731) is arranged at one end, close to the driving plate (73), of the locking columns (74);
the drive plate (73) is stepped, the drive plate (73) drives the locking column (74) to slide in the through hole (622) through the drive surface (731) and insert into the locking hole (221), so that the foot support (60) is locked on the detection bed (20).
10. The rotational multi-angle imaging nuclear magnetic resonance apparatus of claim 9, wherein: the foot rest locking assembly (70) further comprises a guide post (75), a first resetting elastic piece (76), an abutting ring (77) and a second resetting elastic piece (78);
the number of the guide posts (75) is at least one, the guide posts (75) are fixed on one side, close to the pedal (61), of the driving plate (73), through holes (612) for the guide posts (75) to penetrate through and slide are formed in the pedal (61), and the first reset elastic piece (76) is sleeved on the guide posts (75) to enable the driving plate (73) to keep the trend of sliding away from the embedding grooves (611);
butt ring (77) are fixed in locking post (74) is close to one side of drive plate (73), be equipped with on the lateral wall of perforation (622) opening part and supply butt ring (77) to inlay caulking groove (623) of establishing the slip, the second resets elastic component (78) cover and locates on locking post (74), the second resets the tank bottom other end and the butt ring (77) butt of one end and caulking groove (623) of elastic component (78), the second resets elastic component (78) and makes locking post (74) keep having the trend of being close to drive plate (73).
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| CN202110870215.9A CN113616185A (en) | 2021-07-30 | 2021-07-30 | Rotary multi-angle imaging nuclear magnetic resonance spectrometer |
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Application publication date: 20211109 |