CN109009184B - Digital medical X-ray photography system - Google Patents
Digital medical X-ray photography system Download PDFInfo
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- CN109009184B CN109009184B CN201810830050.0A CN201810830050A CN109009184B CN 109009184 B CN109009184 B CN 109009184B CN 201810830050 A CN201810830050 A CN 201810830050A CN 109009184 B CN109009184 B CN 109009184B
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000006378 damage Effects 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 19
- 238000002601 radiography Methods 0.000 claims description 9
- 210000003127 knee Anatomy 0.000 claims description 6
- 210000000689 upper leg Anatomy 0.000 claims description 3
- 210000002517 zygapophyseal joint Anatomy 0.000 claims description 3
- 208000014674 injury Diseases 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 210000002683 foot Anatomy 0.000 description 30
- 238000007689 inspection Methods 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000037237 body shape Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000036544 posture Effects 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000000544 articulatio talocruralis Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007374 clinical diagnostic method Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
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- 239000000523 sample Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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Abstract
The invention discloses a digital medical X-ray photography system, which comprises a vertical photography frame, a detector, an X-ray tube assembly bracket and a seat with a pressure device, wherein the seat is provided with trundles, a pedal plate and a hydraulic stepping device, a piston of the hydraulic stepping device is connected with a bearing seat plate, the bearing seat plate is provided with a seat back and a support frame, two sides of the seat back are respectively provided with a fixed armrest, and the pressure device is arranged in the support frame; the movable handrail is connected with one end of the pressure applying vertical rod through a revolute pair, the other end of the pressure applying vertical rod and a slideway fixed on the bearing seat plate form a revolute pair, and the pressure applying device further comprises a ratchet mechanism which mainly comprises a pawl and a ratchet bar fixed on the support frame. The X-ray photography system provided by the invention is provided with a special matching seat, is convenient to check and operate, is enhanced in comfort, is safe and reliable, reduces the pain of a patient during positioning, and reduces the risk of secondary injury.
Description
The technical field is as follows:
the invention relates to a medical instrument, in particular to a digital medical X-ray photography system.
Background art:
x-ray diagnosis is one of the important clinical diagnostic methods, which is based on X-ray images. The X-ray image is composed of images with different gray levels from black to white, and is a gray-scale image. These images of different gray levels reflect the anatomical and pathological states of the human tissue structure in terms of density. In recent years, with the increase of medical equipment level, digital medical X-ray imaging systems have been widely used to improve medical treatment level. The digital medical X-ray photographic system is a radiographic apparatus adopting direct digital conversion technology software, and comprises a direct imaging digital flat panel detector, a ray generating device and automatic image acquisition post-processing software which form an image chain, so that clear images can be provided, and the inspection efficiency is improved. The digital medical X-ray photography system is mainly used for shooting and checking various human body parts such as head and neck, chest and abdomen, vertebra, four limbs and the like, the flat panel detector can rotate at a large angle, the clinical complex positioning requirement can be met, and the photography in a standing position, a lying position and a sitting position can be carried out. In order to better observe the lesion tissue structure, the patient is required to be positioned to fully show the lesion, which is also more advantageous for diagnosis.
When examining the ankle, the patient needs to put the correct position to observe the fracture and dislocation after the trauma of the ankle joint, the fracture of each bone of the foot and the foreign body. The detector of the existing digital medical X-ray photography system still has a certain height from the ground at the lowest position of the stand, and because the ankle of a patient has trauma, when the patient is in a sitting position, the patient usually sits on a seat and places the injured foot on the detector under the assistance of a doctor, and because the height and the body shape of the patient are different, such as a child patient and an adult patient, the application range of the common seat is narrow, and the comfort degree of the patient experience is greatly reduced. In order to better observe the gaps of all the facet joints of the foot, a patient needs to apply force to the foot under the guidance of a doctor, the prior sitting posture is inconvenient to apply force, the improper force application in the standing position can cause secondary damage to the foot of the patient, and the pain of the patient is aggravated.
The invention content is as follows:
the invention provides a digital medical X-ray photography system which is convenient to operate, high in comfort, safe and reliable and solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a digital medical X-ray photography system comprises a vertical photography frame, a detector, an X-ray tube assembly and an X-ray tube assembly support, and is structurally characterized by further comprising a seat with a pressure device, wherein four corners of the bottom frame of the seat are provided with trundles, one side of the bottom frame is provided with a pedal plate, the bottom frame is also provided with a hydraulic stepping device, the extending end of a piston of the hydraulic stepping device is connected with a bearing seat plate of the seat, the bearing seat plate is provided with a seat back and a support frame, two sides of the seat back are respectively provided with a fixed armrest, and the pressure device is arranged in the support frame; the movable armrest is connected with one end of the pressure applying vertical rod through a revolute pair, the other end of the pressure applying vertical rod and a slideway fixed on the bearing seat plate form a revolute pair, the pressure applying device further comprises a ratchet mechanism, the ratchet mechanism mainly comprises a pawl and a ratchet rack fixed on the support frame, the pawl mainly comprises a first-level pawl and a second-level pawl matched with the ratchet rack, the first-level pawl is rotatably connected with the second-level pawl, a first reset torsion spring is arranged between the first-level pawl and the pressure applying vertical rod, a second reset torsion spring is arranged between the first-level pawl and the second-level pawl, a pull rod is arranged on the first-level pawl, a handheld portion is hinged to the other end of the pull rod, and a third reset torsion spring is arranged between the pull rod and the handheld portion.
By adopting the structure, the chair can be lifted under the action of the hydraulic lifting device, the height of the chair can be freely adjusted according to different heights and body shapes of patients, so that the patients can keep comfortable sitting postures, and meanwhile, the positioning stability of the patients in the examination process is improved. The seat is provided with the pedal, and the patient places the foot on the pedal and pushes the seat to a proper position, so that the risk of secondary injury in the moving process of the patient is reduced. When the feet are required to be placed on the detector for examination, the detector can be lowered to the lowest position, the bearing seat plate of the seat is stepped up, the height of the feet of the patient from the ground is equal to the lowest position of the detector, the injured feet of the patient are not required to be lifted, and the pain of the patient is reduced to the lowest. When the force is applied to the foot to check the gap between each facet joint, the movable armrest is rotated to the position above the knee, the movable armrest is pressed downwards to enable the movable armrest to be pressed to be close to the thigh of the knee, the pressure on the foot is small or large, and secondary damage caused by improper force application is avoided. The ratchet mechanism of the pressure applying device can ensure that the pressure is stably maintained, after exposure is completed, the hand-held part is rotated, then the pull rod is pulled to enable the first-stage pawl to rotate, the second-stage pawl rotates along with the first-stage pawl and is separated from the ratchet bar, the movable handrail is pushed upwards, and the movable handrail is rotated to the initial position after being in place. The structure of the invention enables the X-ray photography system to have a special matching seat, the examination operation is convenient, the comfort is enhanced, the safety and the reliability are high, the pain born by the patient when the patient is in the position is reduced, and the risk of secondary injury is reduced.
The pedal is connected with the underframe through a rotating shaft, one end of the rotating shaft is rotatably connected with the underframe, and the other end of the rotating shaft is fixedly connected with the pedal. This setting makes patient's foot obtain the bearing, and is more steady when not only comfortable but also removing.
And a friction ring is arranged at the joint of the underframe and the rotating shaft. Because the sole of the patient applies force to the pedal uniformly, the friction force between the chassis and the rotating shaft is increased, the pedal can be kept in a stable state, and the structure is simple. Or a linkage locking mechanism is arranged on the pedal and comprises a U-shaped plug-in, two free ends of the U-shaped plug-in are matched with corresponding locking insertion holes in the underframe, the rear end of the U-shaped plug-in is connected with a linkage button on one side of the pedal through a linkage rod, and a return spring is arranged between the linkage button and the pedal. This setting through the grafting of control U type plug-in components and locking jack, realizes the horizontal position locking of running-board, when promoting seat to detector department, removes the cooperation of U type plug-in components and locking jack, realizes the upset of running-board, can promote the seat and be close to the detector, further reduces the activity of patient's foot.
The hydraulic stepping device comprises an oil pump, a hydraulic cylinder and a stepping foot support, the oil pump is connected with the hydraulic cylinder through a pipeline, and one end of the stepping foot support is in high-pair contact with the upper end of a pump core of the oil pump and is in rotating connection with a hoop piece fixed on the hydraulic cylinder. This setting, the seat is stepped on to rise fast convenient, and it is accurate to rise the height control.
When the fixed handrail and the movable handrail are collinear, the free ends of the fixed handrail and the movable handrail are not contacted with each other. The arrangement ensures that the movable handrail and the fixed handrail do not interfere with each other. The free end of the fixed handrail is in a concave arc shape, and the free end of the movable handrail is in a convex arc shape matched with the concave arc shape. When the movable handrails do not need to be pressed, the movable handrails and the fixed handrails can simultaneously play a supporting role, so that the comfort of a patient is improved.
The chair back is provided with a pushing handle. The patient can be conveniently pushed to move horizontally.
The caster wheels on one side of the underframe, which are close to the foot pedals, are universal ball wheels, and the caster wheels on the other side of the underframe are rolling wheels with brakes. The universal ball wheel is flexible and convenient to run, the seat locking is guaranteed by the aid of the braking idler wheels, and the seat is prevented from being mistakenly moved during inspection.
Description of the drawings:
fig. 1 is a general structural diagram of a first embodiment of the present invention.
Fig. 2 is a front view of a seat according to a first embodiment of the present invention.
Fig. 3 is a left side view (with the footrest horizontal) of the seat according to the first embodiment of the present invention.
Fig. 4 is a left side view of the chair (with the footrest vertical and the armrest rotated) according to the first embodiment of the present invention.
Fig. 5 is an enlarged view of the pressing device according to the first embodiment of the present invention.
Fig. 6 is an enlarged view of a portion a in fig. 5.
Fig. 7 is a diagram of a pressing state of the pressing device according to the first embodiment of the present invention.
Fig. 8 is a partial structural view of the pedal in a horizontal position according to the second embodiment of the present invention.
FIG. 9 is a partial structural view of the pedal in the vertical position according to the second embodiment of the present invention.
In the figure, 11, a column, 12, a detector, 13, a detector tray, 14, a handle, 21, a beam limiter, 22, a control handle, 31, a track, 32, a telescopic column, 41, a chassis, 42, a pedal, 43, a hydraulic lifting device, 44, a bearing seat board, 45, a chair back, 46, a support frame, 47, a fixed handrail, 48, a movable handrail, 49, a pushing handle, 411, a roller, 412, a universal ball wheel, 421, a rotating shaft, 422, a U-shaped plug-in, 423, a linkage rod, 424, a linkage button, 425, a return spring, 431, a lifting foot support, 432, a pump core, 433, a hydraulic cylinder, 434, a piston, 435, a hoop, 51, a pressing vertical rod, 52, a slide way, 53, a mechanism, 531, a primary pawl, 532, a secondary pawl, 533, a ratchet rack, 534, a return torsion spring I, 535, a return torsion spring II, 536, a pull rod, 537, and a handheld part.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the present invention will be explained in detail by the following embodiments and the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1, the digital medical X-ray photographing system of the present embodiment includes a vertical photographing frame, a detector, an X-ray tube assembly, and an X-ray tube assembly support, wherein the vertical photographing frame includes a vertical column 11 and a detector tray 13 rotatably connected to the detector 12, the detector tray 13 can move up and down along the vertical column 11, both sides of the detector 12 are provided with a control panel and a handle 14, the control panel can control the detector 12 to tilt to a horizontal position or tilt to a vertical position and the detector tray 13 to move up and down, and the movement of the detector 12 can be manually adjusted by the handle 14; the detector 12 converts the X-ray energy into a digital signal of an image, and the intensity of the ray signal received by the detector depends on the density of the tissue in the human body section of the part to finally form images with different gray scales; an X-ray tube assembly comprising a beam limiter 21 and a control handle 22, wherein the speed limiter 21 is used for controlling the proper X-ray irradiation field, reducing scattered rays and indicating the center of the irradiation field, and the control handle 22 is used for rotating or moving the beam limiter 21; the X-ray tube assembly support comprises a rail 31 and a telescopic upright column 32, the telescopic upright column 32 is rotatably connected with the beam limiter 21, the upper end of the telescopic upright column 32 is connected with a transmission mechanism, and the X-ray tube assembly transversely or longitudinally moves on the rail 31 through the transmission mechanism.
The X-ray photographing system according to the embodiment of the present invention shown in fig. 1 to 7 further includes a chair with a pressing device, a foot pedal 42 is connected to the base frame 41 of the chair through a rotation shaft 421, wherein one end of the rotation shaft 421 is rotatably connected to the base frame 41, and the other end of the rotation shaft 421 is fixedly connected to the foot pedal 42. The four corners of the chassis 41 are respectively provided with casters, wherein the caster near the pedal 42 is a universal ball wheel 412, the other two casters are rollers 411 with brakes, the universal ball wheel 412 is flexible and convenient to run, the rollers 411 with brakes ensure the seat to be locked, and the mistaken movement is prevented during the inspection. The base frame 41 is further provided with a hydraulic stepping device 43, the hydraulic stepping device 43 comprises an oil pump, a hydraulic cylinder 433 and a stepping foot support 431, the oil pump is connected with the hydraulic cylinder 433 through a pipeline, one end of the stepping foot support 431 is in high-order contact with the upper end of a pump core 432 of the oil pump and is rotationally connected with a hoop 435 fixed on the hydraulic cylinder 433, the extending end of a piston 434 of the hydraulic cylinder 433 is connected with a bearing base plate 44 of the seat, and the lifting height of the seat can be accurately controlled.
A chair back 45 and a support frame 46 are arranged on a bearing seat plate 44 of the chair, fixed armrests 47 are respectively arranged on two sides of the chair back 45, and a pressure device is arranged in the support frame 46; an upper opening is arranged at the upper end of the supporting frame 46, and a side sliding groove is arranged at one side of the supporting frame 46. The movable armrest 48 is connected with one end of the pressure-applying upright rod 51 through a revolute pair, the other end of the pressure-applying upright rod 51 and the slideway 52 fixed on the bearing seat plate 44 form a revolute pair, the pressure-applying device further comprises a ratchet mechanism 53, the ratchet mechanism 53 mainly comprises a pawl and a ratchet bar 533 fixed on the support frame 46, the pawl mainly comprises a primary pawl 531 which is rotatably connected with one side of the pressure-applying upright rod 51 and a secondary pawl 532 which is matched with the ratchet bar 533, the primary pawl 531 is rotatably connected with the secondary pawl 532, a return torsion spring first 534 is arranged between the primary pawl 531 and the pressure-applying upright rod 51, a return torsion spring second 535 is arranged between the primary pawl 531 and the secondary pawl 532, a pull rod 536 is arranged on the primary pawl 531, a handheld portion 537 is hinged to the other end of the pull rod 536, and a return torsion spring third is arranged between the pull rod 536 and the handheld portion 537.
The connecting position of the bottom frame 41 and the rotating shaft 421 can be selectively provided with a friction ring, and the friction force between the bottom frame 41 and the rotating shaft 421 is increased because the sole of the foot of the patient uniformly applies force to the pedal 42, so that the pedal 42 can be kept in a relatively stable state by the simple structural arrangement.
When the fixed handrail 47 and the movable handrail 48 are collinear, the free ends of the fixed handrail 47 and the movable handrail 48 are not contacted with each other, so that the movable handrail 48 and the fixed handrail 47 are ensured not to be interfered with each other. The preferred scheme can be that the free end of the fixed armrest 47 is in a concave arc shape, the free end of the movable armrest 48 is in a convex arc shape matched with the concave arc shape, when the movable armrest 48 does not need to be pressed, the upper end of the support frame 46 limits the position of the movable armrest 48 so that the movable armrest 48 and the fixed armrest 47 can simultaneously play a supporting role, and the comfort of a patient is improved, namely the armrest of the chair comprises the fixed armrest 47 and the movable armrest 48. A push handle 49 is mounted on the seat back 45. The patient can be conveniently pushed to move horizontally.
When the chair is used, the height of the chair can be freely adjusted according to different heights and body shapes of patients, a doctor continuously treads and steps on the foot support 431, the pump core 432 reciprocates, the hydraulic cylinder 433 takes oil, the piston 434 moves upwards, and the height of the bearing seat plate 44 changes, so that the patients can keep comfortable sitting postures, and the chair is favorable for the stability of the patients in the swing in the checking process. The chair is provided with a pedal 42, and the patient places the feet on the pedal 42 in the horizontal position to push the chair to the proper position, so that the risk of secondary injury during the movement of the patient is reduced. When the foot needs to be placed on the detector 12 for inspection, the detector 12 can be lowered to the lowest position, the detector 12 is located on the detector tray 13 in a horizontal position, and the beam limiter 21 is adjusted to a proper position by the control handle 22 to align the X-ray tube assembly at the center of the detector 12. The weight bearing seat plate 44 of the chair is raised to level the height of the patient's foot above the ground with the lowest position of the probe 12, so that the patient does not need to lift the injured foot, and pain of the patient is minimized. When a force is required to be applied to the foot to check the gap between the small joints, the movable armrest 48 is rotated to rotate 90 ° in the horizontal plane around the connection point with the pressing upright rod 51, when the movable armrest 48 is located above the knee of the patient, the movable armrest 48 is pressed downward, the movable armrest 48 moves downward along the side sliding groove of the support frame 46, the pressing upright rod 51 moves downward along the sliding rail 52, the movable armrest 48 moves downward, the pawl connected to one side of the pressing upright rod 51 moves downward, the end of the secondary pawl 532 slides over the ratchet rod 533, when the movable armrest 48 presses the thigh close to the knee, the pressing is stopped, and the secondary pawl 532 engages with the ratchet rod 533 to lock the pressing upright rod 51. In the pressing process, the pressure of the foot is changed from small to large, so that secondary damage caused by improper force application is avoided, and the ratchet mechanism 53 of the pressing device can ensure stable pressure maintenance. After exposure is completed, the handle portion 537 is rotated, then the pull rod 536 is pulled to rotate the primary pawl 531, the secondary pawl 532 rotates and disengages from the ratchet bar 533, meanwhile, the movable armrest 48 is pushed upwards, the movable armrest 48 moves upwards along the side sliding groove of the support frame 46, the pressing upright rod 51 moves upwards along the sliding rail 52, the pawl moves upwards along the pressing upright rod 51, when the movable armrest 48 reaches the upper opening position of the support frame 46, the handle portion 537 is released, the handle portion 537 is reset under the action of the reset torsion spring three, the primary pawl 531 and the pull rod 536 reset under the action of the reset torsion spring one 534, the secondary pawl 532 is meshed with the ratchet bar 533 under the action of the reset torsion spring two 535, and the movable armrest 48 is rotated to the initial position. The oil discharge valve of the hydraulic lifting device 43 is opened, oil in the hydraulic cylinder 433 flows back to the oil tank, the bearing seat plate 44 descends, and the pedal plate 42 is turned over, so that a patient can conveniently leave the chair. The above-mentioned structure of this embodiment sets up and has made X radiography system possess special supporting seat, and inspection convenient operation, travelling comfort reinforcing, safe and reliable have reduced the misery that the patient bore when putting to the risk of secondary injury has been reduced.
Example two:
as shown in fig. 8 and 9, the present embodiment is different from the first embodiment in that: in this embodiment, no friction ring is disposed at the joint between the bottom frame 41 and the rotating shaft 421, but a linkage locking mechanism is disposed on the pedal plate 42, the linkage locking mechanism includes a U-shaped plug 422, two free ends of the U-shaped plug 422 are engaged with corresponding locking insertion holes on the bottom frame 41, the rear end of the U-shaped plug 422 is connected with a linkage button 424 on one side of the pedal plate 42 through a linkage rod 423, and a return spring 425 is disposed between the linkage button 424 and the pedal plate 42.
During the use, through the grafting of control U type plug-in components 422 and locking jack, realize the horizontal position locking of running-board 42, when promoting seat to detector 12 department, inwards press linkage button 424, gangbar 423 can drive U type plug-in components 422 and keep away from the locking jack to remove the cooperation of U type plug-in components 422 and locking jack, realize the upset of running-board 42, can promote the seat and be close to detector 12, further reduce the activity of patient's foot. When a patient just sits on the table, the pedal 42 is in a vertical position and cannot interfere with legs of the patient, after the bearing seat plate 44 is lifted, the pedal 42 is turned to a horizontal position, and the U-shaped plug-in 422 can be automatically inserted into the locking insertion hole to lock the pedal 42.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art. The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. The utility model provides a digital medical X radiography system, includes vertical camera stand, detector, X ray tube subassembly support, its characterized in that: the chair comprises a seat and a pressing device, wherein four corners of the underframe of the seat are provided with trundles, one side of the underframe is provided with a pedal plate, the underframe is also provided with a hydraulic stepping device, the extending end of a piston of the hydraulic stepping device is connected with a bearing seat plate of the seat, the bearing seat plate is provided with a chair back and a support frame, two sides of the chair back are respectively provided with a fixed armrest, the pressing device is arranged in the support frame, the upper end of the support frame is provided with an upper opening, and one side of the support frame is provided with a side chute; the movable handrail is connected with one end of the pressure applying vertical rod through a revolute pair, the other end of the pressure applying vertical rod and a slideway fixed on the bearing seat plate form a revolute pair, when the fixed handrail and the movable handrail are collinear, the free ends of the fixed handrail and the movable handrail are not contacted with each other, the upper end of the support frame limits the movable handrail at the moment, and the movable handrail can move up and down along a side sliding groove of the support frame after horizontally rotating for 90 degrees; when the force is applied to the foot to check the gap between each facet joint, the movable armrest is rotated to the position above the knee, and the movable armrest is pressed downwards to be pressed close to the thigh of the knee, so that the pressure on the foot is small or large, and secondary damage caused by improper force application is avoided; the pressing device further comprises a ratchet mechanism, the ratchet mechanism mainly comprises a pawl and a ratchet rack fixed on the support frame, the pawl mainly comprises a first-stage pawl and a second-stage pawl, the first-stage pawl is rotatably connected with one side of the pressing vertical rod, the second-stage pawl is matched with the ratchet rack, the first-stage pawl is rotatably connected with the second-stage pawl, a first reset torsion spring is arranged between the first-stage pawl and the pressing vertical rod, a second reset torsion spring is arranged between the first-stage pawl and the second-stage pawl, a pull rod is arranged on the first-stage pawl, the other end of the pull rod is hinged to a handheld portion, and a third reset torsion spring is arranged between the pull rod and the handheld portion.
2. A digital medical radiography system according to claim 1, wherein: the pedal is connected with the underframe through a rotating shaft, one end of the rotating shaft is rotatably connected with the underframe, and the other end of the rotating shaft is fixedly connected with the pedal.
3. A digital medical radiography system according to claim 2, characterized in that: and a friction ring is arranged at the joint of the underframe and the rotating shaft.
4. A digital medical radiography system according to claim 2, characterized in that: the foot pedal is provided with a linkage locking mechanism, the linkage locking mechanism comprises a U-shaped plug-in, two free ends of the U-shaped plug-in are matched with corresponding locking jacks on the underframe, the rear end of the U-shaped plug-in is connected with a linkage button on one side of the foot pedal through a linkage rod, and a reset spring is arranged between the linkage button and the foot pedal.
5. A digital medical radiography system according to claim 1, characterized in that: the hydraulic stepping device comprises an oil pump, a hydraulic cylinder and a stepping foot support, the oil pump is connected with the hydraulic cylinder through a pipeline, and one end of the stepping foot support is in high-pair contact with the upper end of a pump core of the oil pump and is in rotating connection with a hoop piece fixed on the hydraulic cylinder.
6. A digital medical radiography system according to claim 1, characterized in that: the free end of the fixed handrail is in a concave arc shape, and the free end of the movable handrail is in a convex arc shape matched with the concave arc shape.
7. A digital medical radiography system according to claim 1, characterized in that: the chair back is provided with a pushing handle.
8. A digital medical radiography system according to claim 1, characterized in that: the casters close to the pedals on one side of the bottom frame are universal ball wheels, and the casters on the other side of the bottom frame are rollers with brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830050.0A CN109009184B (en) | 2018-07-25 | 2018-07-25 | Digital medical X-ray photography system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810830050.0A CN109009184B (en) | 2018-07-25 | 2018-07-25 | Digital medical X-ray photography system |
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| CN109009184A CN109009184A (en) | 2018-12-18 |
| CN109009184B true CN109009184B (en) | 2022-08-26 |
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| CN110251149A (en) * | 2019-07-31 | 2019-09-20 | 曹顺山 | A kind of mobile X-ray unit |
| CN110897401B (en) * | 2019-12-11 | 2023-05-05 | 广州市阔虎电子产品有限公司 | Office soft seat |
| CN112957063A (en) * | 2021-01-28 | 2021-06-15 | 四川省肿瘤医院 | X-ray flat panel detector lifter assisting ICU critical patient in placing bedside |
| CN113827943A (en) * | 2021-11-01 | 2021-12-24 | 陈瑞仙 | Convenient quick switching's spring roller skate |
| CN114517872B (en) * | 2021-12-26 | 2023-11-21 | 苏州群达激光科技有限公司 | Angle adjustment type carbon dioxide radio frequency laser |
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| CN109009184A (en) | 2018-12-18 |
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