CN112263265A - Cervical vertebra CT examination auxiliary device - Google Patents

Cervical vertebra CT examination auxiliary device Download PDF

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Publication number
CN112263265A
CN112263265A CN202011153263.8A CN202011153263A CN112263265A CN 112263265 A CN112263265 A CN 112263265A CN 202011153263 A CN202011153263 A CN 202011153263A CN 112263265 A CN112263265 A CN 112263265A
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Prior art keywords
box body
rod
plate
examination
auxiliary device
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CN202011153263.8A
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Chinese (zh)
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赵琳琳
鲁果果
李小潘
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First Affiliated Hospital of Henan University of Science and Technology
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First Affiliated Hospital of Henan University of Science and Technology
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Priority to CN202011153263.8A priority Critical patent/CN112263265A/en
Publication of CN112263265A publication Critical patent/CN112263265A/en
Withdrawn legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computed tomography [CT]
    • A61B6/032Transmission computed tomography [CT]
    • A61B6/035Mechanical aspects of CT
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04Positioning of patients; Tiltable beds or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/505Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of bone

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

An auxiliary device for cervical vertebra CT examination effectively solves the problems that the head of a patient is lack of fixation during the current cervical vertebra CT examination and the imaging effect is easily influenced by shoulder artifacts; the box body is connected to the upper end of the base in a sliding mode, a clamping device is arranged at the upper end of the box body, a supporting plate is arranged above the box body, the clamping device comprises an E-shaped rod square tube, a fixing rod is connected in the square tube in a sliding mode, a clamping plate is arranged on the fixing rod and hinged to a swing rod, the free ends of the two swing rods are hinged to the box body through hinge pins, a sleeve is connected to the swing rod in a sliding mode, and the middle two ends of the; the front end of the box body is rotatably connected with a cylindrical rod, and the upper end of the cylindrical rod is provided with an arc-shaped plate; a rotating shaft is arranged in the box body, a coil spring is arranged at the left end of the rotating shaft, the free end of the coil spring is fixedly connected with the box body, a ring gear is rotatably connected in the box body, a one-way structure is arranged in the ring gear, a flat plate is slidably connected to the base, and a first rack is arranged on the flat plate; the invention has novel conception, ingenious structure, convenient operation and strong practicability.

Description

Cervical vertebra CT examination auxiliary device
Technical Field
The invention relates to the technical field of auxiliary instruments in radiology departments, in particular to an auxiliary device for cervical vertebra CT examination.
Background
CT is electronic computer tomography, it utilizes accurate collimated X-ray beam, gamma ray, ultrasonic wave, etc., and the detector with extremely high sensitivity makes the section scanning around a certain position of the human body one by one together, it has fast characteristic of scanning time, the picture is clear, can be used for the inspection of many diseases; the following can be classified according to the radiation used: x-ray CT (X-CT), and gamma-ray CT (gamma-CT).
When patient's cervical vertebra CT inspection, the head location is very important to CT scanning and detection, and the head in case rocks and will lead to the fact very big influence to the accuracy of examining the structure, but present CT inspection bed body can only carry out the support of head, can't carry out effectual fixed to patient's head, patient's cervical vertebra exposes inadequately during the inspection moreover, produces harmful effects because of shoulder artifact to the formation of image display of cervical vertebra structure easily, so need patient oneself make shoulders position flagging hard, bring the discomfort for the patient.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an auxiliary device for cervical vertebra CT examination, which effectively solves the problems that the head of a patient is not fixed during the current cervical vertebra CT examination, and the imaging effect is easily affected by shoulder artifacts.
The technical scheme includes that the automatic lifting device comprises a base, a box body is connected to the upper end of the base in a sliding mode, clamping devices are arranged on the left side and the right side of the upper end of the box body respectively, a supporting plate which is located between the two clamping devices and can move up and down is arranged above the box body, each clamping device comprises an E-shaped rod and two square cylinders which are opposite up and down, the two square cylinders can swing up and down, fixing rods in the left and right directions are connected in the square cylinders in a sliding mode, one end, close to the supporting plate, of each fixing rod is provided with a clamping plate and hinged with a swing rod in the up and down direction, the free ends of the two swing rods are hinged with the box body through pin shafts, sleeves are connected to the swing rods in a sliding mode; the left side and the right side of the front end of the box body are respectively and rotatably connected with a cylindrical rod in the vertical axial direction, the upper end of the cylindrical rod penetrates through the box body and is provided with an arc-shaped plate positioned on the front side of the cylindrical rod, and the two arc-shaped plates can move oppositely or back to back along with the two E-shaped rods and swing oppositely or back to back;
the box in be equipped with about the axial and can remove along with the layer board and rotate the pivot, the pivot left end is equipped with the wind spring, wind spring free end and box fixed connection, the left and right sides rotates respectively in the box and is connected with the ring gear coaxial with the pivot, be equipped with one-way structure in the ring gear, sliding connection has the flat board on the base, both ends are equipped with the first rack with ring gear meshing respectively around the flat board, when the layer board moves down, the pivot rotates, the ring gear is static, the wind spring holds power, when the layer board can not move down, the wind spring is released, the pivot makes ring gear drive the box through one-way structure and slides backward.
The invention has novel conception, ingenious structure, convenient operation and strong practicability, the head of a patient can be automatically and effectively fixed through a plurality of clamping plates only by placing the head on the supporting plate, simultaneously, the two arc-shaped plates can support the chin of the patient, the head of the patient is prevented from shaking in the examination process to influence the examination result, the coil spring gradually stores force in the head fixing process, the head of the patient can be pulled to move backwards through the coil spring after the head is fixed, the imaging effect is prevented from being influenced due to shoulder artifacts, the patient does not need to droop the positions of the shoulders any more, the comfort level of the patient in the cervical vertebra CT examination process is increased, after the examination is finished, medical personnel only need to pull the handle backwards, the fixation of the head of the patient can be released, and the device can be restored.
Drawings
Fig. 1 is an isometric view of the present invention.
FIG. 2 is a right perspective view, in full section, of the present invention.
Fig. 3 is an enlarged view of a in fig. 2 of the present invention.
FIG. 4 is a top isometric view in full section of the present invention.
Fig. 5 is a schematic view of a clamping device according to the present invention.
FIG. 6 is a left side elevational view in ladder section of the present invention.
Figure 7 is a top cutaway isometric view of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The device is shown in the figures 1 to 7 and comprises a base 1, wherein the upper end of the base 1 is connected with a box body 2 in a sliding manner, the left side and the right side of the upper end of the box body 2 are respectively provided with a clamping device, a supporting plate 3 which is positioned between the two clamping devices and can move up and down is arranged above the box body 2, the clamping devices comprise an E-shaped rod 4 and two square cylinders 5 which are opposite up and down, the two square cylinders 5 can swing up and down, the square cylinders 5 are internally and slidably connected with a fixing rod 6 in the left and right direction, one end, close to the supporting plate 3, of the fixing rod 6 is provided with a clamping plate 7 and hinged with swing rods 8 in the up and down direction, the free ends of the two swing rods 8 are hinged with the box body 2 through pin shafts, the swing rods 8 are connected with sleeves 9 in a sliding manner, the; the left side and the right side of the front end of the box body 2 are respectively and rotatably connected with an upper axial cylindrical rod 10 and a lower axial cylindrical rod 10, the upper end of each cylindrical rod 10 penetrates through the box body 2 and is provided with an arc-shaped plate 11 positioned on the front side of the cylindrical rod, and the two arc-shaped plates 11 can move oppositely or oppositely along with the two E-shaped rods 4 and swing oppositely or oppositely;
the box body 2 in be equipped with about the axial and can follow the removal of layer board 3 and pivoted pivot 12, pivot 12 left end is equipped with coil spring 13, coil spring 13 free end and box body 2 fixed connection, the left and right sides rotates respectively in the box body 2 and is connected with ring gear 14 coaxial with pivot 12, be equipped with the unidirectional structure in the ring gear 14, sliding connection has flat board 15 on the base 1, the first rack 16 with ring gear 14 meshing is equipped with respectively at flat board 15 front and back both ends, when layer board 3 moves down, pivot 12 rotates, ring gear 14 is static, coil spring 13 holds power, when layer board 3 can not move down, coil spring 13 power of putting, pivot 12 makes ring gear 14 drive box body 2 through the unidirectional structure and slides backward.
In order to enable the two E-shaped rods 4 to move up and down along with the supporting plate 3 and move oppositely or back to back, fixing plates 17 are respectively arranged at the left end and the right end of the box body 2, through grooves 18 in the up-down direction are formed in the fixing plates 17, the square tube 5 is located in the through grooves 18 on the corresponding side of the square tube and is hinged with the fixing plates 17 through pin shafts, the lower ends of the E-shaped rods 4 extend into the box body 2 and are provided with sliders 19 connected with the box body 2 in a sliding mode, second racks 20 in the up-down direction are arranged at the lower end of the supporting plate 3, the lower ends of the second racks 20 extend into the box body 2 and are located in front of the rotating shaft 12, pull rods 21 in the left-right direction are.
In order to enable the two arc plates 11 to swing oppositely or oppositely along with the opposite or opposite movement of the two E-shaped rods 4, the lower end of the cylindrical rod 10 extends into the box body 2 and is provided with a connecting rod 22 positioned at the rear side thereof, and the free end of the connecting rod 22 is hinged with a slide block 19 far away from the connecting rod through a push rod 23.
In order to make the rotating shaft 12 rotate along with the up-and-down movement of the supporting plate 3, a transmission gear 24 capable of being meshed with the second rack 20 is coaxially arranged on the rotating shaft 12, and when the supporting plate 3 cannot move downwards, the transmission gear 24 is disengaged from the second rack 20.
The one-way structure comprises a circular plate 25, the circular plate 25 is coaxially and fixedly connected with the rotating shaft 12, a plurality of ratchet-shaped grooves 26 are uniformly distributed in the circumferential direction of the ring gear 14, pawls 27 capable of being clamped in the ratchet-shaped grooves 26 are rotatably connected to the circular plate 25, and elastic sheets located above the pawls 27 are arranged on the circular plate 25.
In order to limit the supporting plate 3 conveniently, the rear side wall of the box body 2 is connected with a front axial handle 28 and a rear axial handle 28 in a sliding mode, the rear end of the second rack 20 is provided with a clamping groove 29 in the left-right direction, and the front end of the handle 28 is provided with a clamping block 30 capable of being clamped in the clamping groove 29.
In order to reset the box body 2 after use, the bottom end of the box body 2 is slidably connected with a pressing rod 31 in the vertical direction, the lower end of the pressing rod 31 is in contact with the upper end surface of the flat plate 15, the upper end surface of the pressing rod 31 is an inclined plane with a lower front part and a higher rear part, a trapezoidal block 32 in contact with the upper surface of the pressing rod 31 is arranged at the lower end of the clamping block 30, a connecting plate 33 is arranged at the rear end of the base 1, and the front end of the connecting plate 33 is connected with.
In order to enable the flat plate 15 to be connected with the base 1 in a sliding manner, a groove 34 with an upward opening is formed in the base 1, sliding shafts 35 connected with the groove 34 in a sliding manner are respectively arranged at the front end and the rear end of the flat plate 15, and a first spring is sleeved on each sliding shaft 35.
In order to facilitate the control of the reset of the supporting plate 3, the lower end of the second rack 20 is connected with the bottom of the box body 2 through a second spring, and a second pressure spring positioned between the fixture block 30 and the box body 2 is sleeved on the handle 28.
In order to prevent the coil spring 13 from reversely storing force, a sliding groove in the front-back direction is formed in the left side wall of the box body 2, and a fixing block fixedly connected with the outer end of the coil spring 13 is connected in the sliding groove in a sliding mode.
In order to increase the comfort of the patient, the supporting plate 3, the clamping plate 7 and the arc-shaped plate 11 are respectively provided with a soft cushion.
When the invention is used, the base 1 is flatly placed on a CT examining table, the head of a patient is placed on the supporting plate 3, the shoulder is pressed against the front end of the box body 2, the two arc-shaped plates 11 are positioned at the two sides of the chin of the patient, the head of the patient generates downward force on the supporting plate 3, the supporting plate 3 drives the second rack 20 to slide downwards, the second rack 20 drives the opposite ends of the two pull rods 21 to swing downwards, the opposite ends of the two pull rods 21 drive the two slide blocks 19 to slide towards the opposite direction, the two slide blocks 19 drive the two E-shaped rods 4 to move towards the opposite direction, the middle upper end and the middle end of the left E-shaped rod 4 drive the left sleeve 9 to, because the sleeve 9 is connected with the swing rods 8 in a sliding manner, the sleeve 9 on the left side drives the two swing rods 8 on the left side to swing rightwards, the two middle ends of the E-shaped rod 4 on the right side drive the sleeve 9 on the right side to move leftwards, and the sleeve 9 on the right side drives the two swing rods 8 on the right side to swing leftwards;
the free end of the swing rod 8 on the left side drives the fixed rod 6 on the left side to slide rightwards in the square tube 5, meanwhile, the fixed rod 6 on the left side drives the square tube 5 on the left side to swing, the fixed rod 6 on the left side drives the two clamping plates 7 on the left side to move rightwards, the free end of the swing rod 8 on the right side drives the fixed rod 6 on the right side to slide leftwards in the square tube 5, meanwhile, the fixed rod 6 on the right side drives the square tube 5 on the right side to swing, the fixed rod 6 on the right side drives the two clamping plates 7 on the right side;
when the plurality of splints 7 gradually approach the head of the patient, the left slider 19 pushes the right connecting rod 22 to swing rightwards through the push rod 23, the right connecting rod 22 drives the right arc-shaped plate 11 to swing leftwards through the cylindrical rod 10, the right slider 19 pushes the left connecting rod 22 to swing leftwards through the push rod 23, the left connecting rod 22 drives the left arc-shaped plate 11 to swing rightwards through the cylindrical rod 10, and the two arc-shaped plates 11 swing towards opposite directions and gradually approach the chin of the patient;
when the two arc plates 11 gradually approach the chin of a patient, the second rack 20 compresses the second spring downwards and drives the transmission gear 24 to rotate clockwise, the transmission gear 24 drives the two circular plates 25 to rotate clockwise through the rotating shaft 12, the circular plates 25 drive the pawls 27 to rotate clockwise, and the pawls 27 can press the elastic sheets to swing at the same time, so that the ring gear 14 keeps still, the fixed block is in contact with the rear side wall of the chute, the rotating shaft 12 drives the inner end of the coil spring 13 to rotate clockwise, the outer end of the coil spring 13 drives the fixed block to slide forwards in the chute, when the fixed block is in contact with the front side wall of the chute, the coil spring 13 starts to accumulate force, the second rack 20 drives the clamping groove 29 to move downwards, when the clamping groove 29 moves to the position of the clamping block 30, the clamping block 30 moves forwards under the elastic force of the second pressure spring 39 and is clamped in the clamping groove 29, the fixation of the patient's head is completed;
at the moment, the transmission gear 24 is disengaged from the second rack 20, the coil spring 13 starts to release force, the coil spring 13 drives the rotating shaft 12 to rotate anticlockwise, the pawl 27 is clamped in the ratchet-shaped groove 26, the rotating shaft 12 drives the two ring gears 14 to rotate clockwise through a one-way structure, and the ring gears 14 and the first rack 16 are in a meshed state, so that the ring gears 14 drive the box body 2 to slide backwards on the base 1, the box body 2 presses the first pressure spring on the connecting plate 33 and stretches the head of the patient backwards, the cervical vertebra of the patient is fully exposed, and the adverse effect of shoulder artifacts on the display of the cervical vertebra structure during CT examination is prevented;
at this time, the patient can start to perform CT examination on the cervical vertebra, after the examination is finished, the medical staff can pull the handle 28 backwards, the handle 28 drives the fixture block 30 to move rightwards, the fixture block 30 compresses the second compression spring 39 and leaves the clamping groove 29, the head of the patient exerts force upwards slightly, the second spring starts to drive the second rack 20 to move upwards, the second rack 20 is re-engaged with the transmission gear 24, the second rack 20 drives the rotating shaft 12 to rotate anticlockwise through the transmission gear 24, the rotating shaft 12 drives the inner end of the coil spring 13 to rotate anticlockwise and continuously release elastic force, after the elastic force of the coil spring 13 is released, the rotating shaft 12 continues to rotate anticlockwise, the coil spring 13 starts to drive the fixing block to slide backwards in the sliding groove, because the upper end surface of the compression rod 31 is an inclined surface with a low front part and a high back part, the fixture block 30 drives the compression rod 31 to slide downwards when moving backwards, the compression rod 31 drives the flat plate, the first spring is compressed, meanwhile, the flat plate 15 drives the two first racks 16 to move downwards, the first racks 16 are disengaged from the ring gear 14, the box body 2 slides forwards under the action of the first pressure spring and returns to the initial position, and the fixed block slides to be in contact with the rear side wall of the sliding groove;
first rack 16 rebound makes two sliders 19 slip towards the opposite directions of the back of the body through pull rod 21, two sliders 19 drive two E shape poles 4 and move towards the opposite directions of the body, E shape pole 4 drives splint 7 and keeps away from the patient head gradually, first rack 16 drives two connecting rods 22 through push rod 23 and swings towards the opposite direction simultaneously, two connecting rods 22 drive two arcs 11 through cylinder pole 10 and swing towards the opposite directions of the body, patient chin is kept away from gradually to two arcs 11, patient head is relieved fixedly, second rack 20 drives layer board 3 rebound to initial position, medical personnel can loosen the handle this moment, the patient can get up and leave CT examination bed.
The invention has novel conception, ingenious structure, convenient operation and strong practicability, the head of a patient can be automatically and effectively fixed through a plurality of clamping plates only by placing the head on the supporting plate, simultaneously, the two arc-shaped plates can support the chin of the patient, the head of the patient is prevented from shaking in the examination process to influence the examination result, the coil spring gradually stores force in the head fixing process, the head of the patient can be pulled to move backwards through the coil spring after the head is fixed, the imaging effect is prevented from being influenced due to shoulder artifacts, the patient does not need to droop the positions of the shoulders any more, the comfort level of the patient in the cervical vertebra CT examination process is increased, after the examination is finished, medical personnel only need to pull the handle backwards, the fixation of the head of the patient can be released, and the device can be restored.
Therefore, the cervical vertebra CT examination auxiliary device provided by the invention can effectively solve the problems that the head of a patient is not fixed during the current cervical vertebra CT examination and the imaging effect is easily influenced by shoulder artifacts, and has the advantages of simple structure operation and convenient use, so that the cervical vertebra examination effect of the patient is better.

Claims (10)

1. A cervical vertebra CT examination auxiliary device comprises a base (1) and is characterized in that the upper end of the base (1) is connected with a box body (2) in a sliding manner, the left side and the right side of the upper end of the box body (2) are respectively provided with a clamping device, a supporting plate (3) which is positioned between the two clamping devices and can move up and down is arranged above the box body (2), the clamping device comprises an E-shaped rod (4) and two square cylinders (5) which are opposite up and down, the two square cylinders (5) can swing up and down, a fixing rod (6) in the left and right direction is connected in a sliding manner in the square cylinders (5), one end of the fixing rod (6) close to the supporting plate (3) is provided with a clamping plate (7) and is hinged with a swing rod (8) in the up and down direction, the free ends of the two swing rods (8) are hinged with the box body (2) through pin shafts, sleeves (9) are, the two E-shaped rods (4) can move oppositely or oppositely along with the up-and-down movement of the supporting plate (3): the left side and the right side of the front end of the box body (2) are respectively and rotatably connected with a cylindrical rod (10) in the vertical axial direction, the upper end of the cylindrical rod (10) penetrates through the box body (2) and is provided with an arc-shaped plate (11) positioned on the front side of the cylindrical rod, and the two arc-shaped plates (11) can move oppositely or back to back along with the two E-shaped rods (4) and swing oppositely or back to back;
a rotating shaft (12) which is in left-right axial direction and can rotate along with the movement of the supporting plate (3) is arranged in the box body (2), a coil spring (13) is arranged at the left end of the rotating shaft (12), the free end of the coil spring (13) is fixedly connected with the box body (2), the left side and the right side in the box body (2) are respectively and rotatably connected with a ring gear (14) which is coaxial with the rotating shaft (12), a one-way structure is arranged in the ring gear (14), a flat plate (15) is slidably connected on the base (1), first racks (16) which are meshed with the ring gear (14) are respectively arranged at the front end and, when the supporting plate (3) moves downwards, the rotating shaft (12) rotates, the ring gear (14) is static, the coil spring (13) stores force, when the supporting plate (3) can not move downwards, the coil spring (13) releases force, and the ring gear (14) drives the box body (2) to slide backwards through the rotating shaft (12) through a one-way structure.
2. The cervical vertebra CT examination auxiliary device as claimed in claim 1, wherein the left and right ends of the box body (2) are respectively provided with a fixing plate (17), the fixing plate (17) is provided with a through groove (18) in the vertical direction, the square tube (5) is positioned in the through groove (18) on the corresponding side and is hinged to the fixing plate (17) through a pin shaft, the lower end of the E-shaped rod (4) extends into the box body (2) and is provided with a sliding block (19) slidably connected with the box body (2), the lower end of the supporting plate (3) is provided with a second rack (20) in the vertical direction, the lower end of the second rack (20) extends into the box body (2) and is positioned in front of the rotating shaft (12), the left and right ends of the second rack (20) are respectively hinged to pull rods (21) in the horizontal direction, and the free ends of the pull rods (21) are hinged to the.
3. The auxiliary device for CT examination of cervical vertebrae according to claim 1, characterized in that the lower end of the cylindrical rod (10) extends into the box body (2) and is provided with a connecting rod (22) at the rear side thereof, and the free end of the connecting rod (22) is hinged with a slide block (19) far away from the connecting rod through a push rod (23).
4. The cervical vertebra CT examination auxiliary device as claimed in claim 1, wherein the rotating shaft (12) is coaxially provided with a transmission gear (24) capable of meshing with the second rack (20), and when the supporting plate (3) cannot move downwards, the transmission gear (24) is disengaged from the second rack (20).
5. The cervical vertebra CT examination auxiliary device as claimed in claim 1, wherein the unidirectional structure comprises a circular plate (25), the circular plate (25) is coaxially and fixedly connected with the rotating shaft (12), a plurality of ratchet-shaped grooves (26) are uniformly distributed along the circumferential direction of the circular gear (14), the circular plate (25) is rotatably connected with a pawl (27) which can be clamped in the ratchet-shaped grooves (26), and an elastic sheet is arranged on the circular plate (25) and positioned above the pawl (27).
6. The auxiliary device for CT examination of cervical vertebrae according to claim 1, wherein the rear side wall of the box body (2) is slidably connected with a front and rear axial handle (28), the rear end of the second rack (20) is provided with a left and right clamping groove (29), and the front end of the handle (28) is provided with a clamping block (30) which can be clamped in the clamping groove (29).
7. The auxiliary device for the CT examination of the cervical vertebra according to claim 1, wherein a pressing rod (31) in the up-down direction is slidably connected to the bottom end of the box body (2), the lower end of the pressing rod (31) keeps contact with the upper end surface of the flat plate (15), the upper end surface of the pressing rod (31) is an inclined plane with a lower front part and a higher rear part, a trapezoidal block (32) which keeps contact with the upper surface of the pressing rod (31) is arranged at the lower end of the clamping block (30), a connecting plate (33) is arranged at the rear end of the base (1), and the front end of the connecting plate (33) is connected with the box body (2.
8. The auxiliary device for CT examination of cervical vertebrae according to claim 1, wherein the base (1) is provided with a groove (34) having an upward opening, the front and rear ends of the plate (15) are respectively provided with a sliding shaft (35) slidably connected with the groove (34), and the sliding shaft (35) is sleeved with a first spring.
9. The auxiliary device for CT examination of cervical vertebrae as claimed in claim 1, wherein the lower end of the second rack (20) is connected to the bottom of the box (2) through a second spring, and the handle (28) is sleeved with a second compression spring between the block (30) and the box (2).
10. The cervical vertebra CT examination auxiliary device as claimed in claim 1, wherein the supporting plate (3), the clamping plate (7) and the arc-shaped plate (11) are respectively provided with soft pads.
CN202011153263.8A 2020-10-26 2020-10-26 Cervical vertebra CT examination auxiliary device Withdrawn CN112263265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011153263.8A CN112263265A (en) 2020-10-26 2020-10-26 Cervical vertebra CT examination auxiliary device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011153263.8A CN112263265A (en) 2020-10-26 2020-10-26 Cervical vertebra CT examination auxiliary device

Publications (1)

Publication Number Publication Date
CN112263265A true CN112263265A (en) 2021-01-26

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ID=74341918

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011153263.8A Withdrawn CN112263265A (en) 2020-10-26 2020-10-26 Cervical vertebra CT examination auxiliary device

Country Status (1)

Country Link
CN (1) CN112263265A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113546331A (en) * 2021-06-09 2021-10-26 河南科技大学第一附属医院 Head, neck and arm fixing device for breast tumor radiotherapy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113546331A (en) * 2021-06-09 2021-10-26 河南科技大学第一附属医院 Head, neck and arm fixing device for breast tumor radiotherapy

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Application publication date: 20210126