CN111329501B - Morning examination and week examination mould body of CT (computerized tomography) simulation positioning machine - Google Patents

Morning examination and week examination mould body of CT (computerized tomography) simulation positioning machine Download PDF

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CN111329501B
CN111329501B CN202010150787.5A CN202010150787A CN111329501B CN 111329501 B CN111329501 B CN 111329501B CN 202010150787 A CN202010150787 A CN 202010150787A CN 111329501 B CN111329501 B CN 111329501B
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positioning
groove
grooves
main body
examination
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CN111329501A (en
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彭照明
刘雅洁
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Peking University Shenzhen Hospital
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Peking University Shenzhen Hospital
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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
    • A61B6/58Testing, adjusting or calibrating thereof
    • A61B6/586Detection of faults or malfunction of the device
    • 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]
    • 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
    • A61B6/58Testing, adjusting or calibrating thereof
    • A61B6/582Calibration

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Abstract

The invention discloses a morning examination and weekly examination die body of a CT (computed tomography) simulation positioning machine, relating to the technical field of medical instruments; the displacement accuracy problem in multi-azimuth inspection operation is solved; the positioning device comprises a main body, wherein two identical left and right positioning columns are respectively arranged on the outer walls of two sides of the main body, and the two left and right positioning columns are symmetrical relative to the main body; two identical front and rear positioning blocks are respectively arranged on the outer walls of the two sides of the main body; the main part top outer wall is seted up and is controlled the location benchmark groove, and main part both sides top outer wall is seted up first about constant head tank. According to the invention, the left and right positioning reference grooves, the first left and right positioning grooves and the second left and right positioning reference grooves are arranged, so that the accuracy in the left and right directions can be conveniently detected; the accuracy in the front and rear direction can be conveniently detected by arranging the front and rear positioning reference grooves and the front and rear positioning grooves; through setting up horizontal positioning benchmark groove, lower horizontal positioning groove and last horizontal positioning groove, can be convenient for detect the ascending precision of vertical direction.

Description

Morning examination and week examination mould body of CT (computerized tomography) simulation positioning machine
Technical Field
The invention relates to the technical field of medical instruments, in particular to a morning examination and weekly examination die body of a CT (computed tomography) simulation positioning machine.
Background
At present, CT is used as a mature medical technology, CT positioning is necessary for a patient in precise radiotherapy, a CT analog positioning machine is required to be detected before positioning so as to determine that machinery, images and the like meet clinical requirements, and the mold body can be used for morning examination and weekly examination of the machinery, partial images and the like of the CT analog positioning machine, so that the aim of quickly and accurately finishing quality guarantee and control is fulfilled.
Through retrieval, the patent with the Chinese patent application number of CN201821529371.9 discloses a multifunctional CT/PET die body, which is characterized in that: including hollow die body rear end, be connected with the die body front end on the die body rear end, be equipped with a plurality of water injection holes on the die body front end, be equipped with water injection hole screw in the water injection hole, the die body front end is connected with the rod and the fixed bolster of a plurality of different materials, and the fixed bolster is connected with the die body front end through four screws one, be equipped with the different tungsten filament in a plurality of positions on the fixed bolster. The alignment wires in the above patents have the following disadvantages: the positioning structure is single, the displacement precision in the operation of the multidirectional inspection cannot be realized, and meanwhile, the structure is relatively complex and is not beneficial to production.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a morning examination and weekly examination model body of a CT (computed tomography) simulation positioning machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
the morning examination and weekly examination die body of the CT simulation positioning machine comprises a main body, wherein two identical left and right positioning columns are respectively arranged on the outer walls of two sides of the main body, and the two left and right positioning columns are symmetrical relative to the main body; two identical front and rear positioning blocks are respectively arranged on the outer walls of the two sides of the main body; the outer wall of the top of the main body is provided with a left positioning reference groove and a right positioning reference groove, the outer walls of the tops of two sides of the main body are provided with a first left positioning groove and a first right positioning groove, and the outer walls of the tops of the left positioning column and the right positioning column are provided with a second left positioning reference groove and a second right positioning reference groove; the outer wall of the top of the main body and the outer walls of the tops of the left and right positioning columns are both provided with a front positioning reference groove and a rear positioning reference groove, and the outer walls of the tops of the front positioning block and the rear positioning block are respectively provided with two symmetrical front positioning grooves and two symmetrical rear positioning grooves; the outer wall of one side of each of the left and right positioning columns is provided with a horizontal positioning reference groove, the outer wall of the same side of each of the left and right positioning columns is provided with a lower horizontal positioning groove, an upper horizontal positioning groove is arranged above the lower horizontal positioning groove, and the upper horizontal positioning groove and the lower horizontal positioning groove are symmetrical about the horizontal positioning reference groove; the upper center, the lower center, the left center, the right center and the front center of the main body are respectively provided with three penetrating hole lines, and the midpoints of the three hole lines are intersected.
Preferably: four same reference (base) holes are formed in the outer wall of one side of the main body.
Preferably: the tangent planes of the left and right positioning reference grooves, the front and rear positioning reference grooves, and the positioning grooves and the reference grooves are all isosceles triangle structures.
Preferably: the first left and right positioning grooves and the second left and right positioning reference grooves are respectively symmetrical about the left and right positioning reference grooves, the horizontal distance between the first left and right positioning grooves and the left and right positioning reference grooves is 10cm, and the horizontal distance between the second left and right positioning reference grooves and the left and right positioning reference grooves is 14 cm.
Preferably: the lower horizontal positioning groove and the upper horizontal positioning groove are symmetrical relative to the horizontal positioning reference groove, and the vertical distances between the lower horizontal positioning groove and the horizontal positioning reference groove and between the upper horizontal positioning groove and the horizontal positioning reference groove are both 10 cm; the two front and rear positioning grooves are symmetrical about the front and rear positioning reference grooves, and the horizontal distances between the front and rear positioning grooves and the front and rear positioning reference grooves are both 10 cm.
Preferably: the hole inner wall of benchmark (base) is pegged graft and is had two sets of the same antiskid circle, and antiskid circle one side outer wall bonds and has a plurality of mounts, and mount one side outer wall all bonds and has rubber spring, and rubber spring one end bonds in main part inner wall.
Preferably: chamfers are arranged at the edges of the main body, the left positioning column, the right positioning column, the front positioning block and the rear positioning block.
Preferably: and a level gauge is arranged on the outer wall of the bottom of the main body.
Preferably: the main body and other structures are all made of non-metal materials.
Preferably: the intersection between the left positioning reference groove, the right positioning reference groove, the front positioning reference groove, the rear positioning reference groove and each positioning groove and the reference groove is provided with a positioning hole which is in a conical structure.
The invention has the beneficial effects that:
1. the accuracy in the left and right direction can be conveniently detected by arranging the left and right positioning reference grooves, the first left and right positioning grooves and the second left and right positioning reference grooves; the accuracy in the front and rear direction can be conveniently detected by arranging the front and rear positioning reference grooves and the front and rear positioning grooves; the accuracy in the vertical direction can be conveniently detected by arranging the horizontal positioning reference groove, the lower horizontal positioning groove and the upper horizontal positioning groove; by arranging the hole lines, when the image is analyzed, the image of the scanning center layer is matched with analysis software of a CT simulation positioning machine, so that whether the image has distortion or not and whether the image is accurately scanned to the center layer or not is determined.
2. By arranging the base hole, different materials can be filled according to the CT condition to be used as the base material to obtain the base CT value, so that comparison is facilitated, and the detection reliability is improved; through the constant head tank and the benchmark groove that set up the isosceles triangle structure, be favorable to observing, promote detection accuracy.
3. The distance between the reference groove and the positioning groove is standardized, so that the detection accuracy is improved; by arranging the rubber spring, the fixing frame and the anti-skidding ring, a base material can be conveniently fixed, and the stability is improved; through setting up the chamfer, can be convenient for more carefully survey the laser motion condition, promote simultaneously and use experience.
4. The level can be adjusted according to the requirement by arranging the level gauge, so that more detailed detection is facilitated; the main body and other structures are made of non-metal materials, and the density of the main body is close to that of water, so that the reliability can be further improved; through the locating hole that sets up conical structure, be favorable to observing and further promote the location accuracy.
Drawings
FIG. 1 is a schematic structural diagram of an integral morning examination and weekly examination mold body of a CT simulation positioning machine according to the present invention;
FIG. 2 is a schematic structural diagram of the side surfaces of morning examination and weekly examination mold bodies of the CT simulated locator;
FIG. 3 is a schematic structural diagram of a top view of a morning examination and weekly examination mold body of the CT simulated locator;
FIG. 4 is a schematic structural diagram of positioning holes of morning examination and weekly examination mold bodies of the CT simulation positioning machine provided by the present invention;
fig. 5 is a schematic structural diagram of a cross-sectional view of a reference (base) hole of a morning examination and weekly examination phantom of the CT simulation positioning machine according to the present invention;
fig. 6 is a schematic side structural view of a cross-sectional view of a reference (base) hole of a mold body for morning examination and weekly examination of the CT simulation positioning machine according to the present invention;
fig. 7 is a schematic front sectional structural view of a morning examination and week examination phantom of the CT simulation positioning machine according to the present invention.
In the figure: 1-main body, 2-left and right positioning columns, 3-second left and right positioning grooves, 4-left and right positioning reference grooves, 5-reference (base) holes, 6-first left and right positioning grooves, 7-front and rear positioning blocks, 8-hole lines, 9-horizontal positioning reference grooves, 10-upper horizontal positioning grooves, 11-lower horizontal positioning grooves, 12-chamfers, 13-front and rear positioning reference grooves, 14-level, 15-front and rear positioning grooves, 16-positioning holes, 17-fixing frames, 18-rubber springs and 19-anti-slip rings.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1:
the morning examination and weekly examination mold body of the CT simulation positioning machine is shown in figures 1-3 and 7 and comprises a main body 1, wherein two identical left and right positioning columns 2 are respectively arranged on the outer walls of two sides of the main body 1, and the two left and right positioning columns 2 are symmetrical relative to the main body 1; two identical front and rear positioning blocks 7 are respectively arranged on the outer walls of the two sides of the main body 1; the outer wall of the top of the main body 1 is provided with a left positioning reference groove and a right positioning reference groove 4, the outer walls of the tops of two sides of the main body 1 are provided with a first left positioning groove and a first right positioning groove 6, and the outer walls of the tops of the left positioning column and the right positioning column 2 are provided with a second left positioning reference groove and a second right positioning reference groove 3; the outer wall of the top of the main body 1 and the outer walls of the tops of the left and right positioning columns 2 are both provided with front and rear positioning reference grooves 13, and the outer walls of the tops of the front and rear positioning blocks 7 are respectively provided with two symmetrical front and rear positioning grooves 15; a horizontal positioning reference groove 9 is formed in the outer wall of one side of each of the left and right positioning columns 2, a lower horizontal positioning groove 11 is formed in the outer wall of the same side of each of the left and right positioning columns 2, an upper horizontal positioning groove 10 is formed above each lower horizontal positioning groove 11, and the upper horizontal positioning groove 10 and the lower horizontal positioning groove 11 are symmetrical with respect to the horizontal positioning reference groove 9; three penetrating hole lines 8 are respectively arranged at the upper center, the lower center, the left center, the right center and the front center of the main body 1, the middle points of the three hole lines 8 are intersected, and the accuracy in the left and right direction can be conveniently detected by arranging the left and right positioning reference grooves 4, the first left and right positioning grooves 6 and the second left and right positioning reference grooves 3; the accuracy in the front-rear direction can be conveniently detected by arranging the front-rear positioning reference grooves 13 and the front-rear positioning grooves 15; the accuracy in the vertical direction can be conveniently detected by arranging the horizontal positioning reference groove 9, the lower horizontal positioning groove 11 and the upper horizontal positioning groove 10; by arranging the hole lines, when the image is analyzed, the image of the scanning center layer is matched with analysis software of a CT simulation positioning machine, so that whether the image has distortion or not and whether the image is accurately scanned to the center layer or not is determined.
For ease of alignment; as shown in fig. 1, four identical reference (base) holes 5 are formed in the outer wall of one side of the main body 1; through setting up benchmark (base) hole 5, can pack different materials according to the CT condition, as benchmark (base) material, obtain benchmark (base) CT value to be convenient for compare, promote the detection reliability.
In order to improve the detection accuracy; as shown in fig. 4, the tangent planes of the left and right positioning reference grooves 4, the front and rear positioning reference grooves 13, and the positioning grooves and the reference grooves are all isosceles triangle structures; through the constant head tank and the benchmark groove that set up the isosceles triangle structure, be favorable to observing, promote detection accuracy.
To normalize the values; as shown in fig. 1, the first left and right positioning grooves 6 and the second left and right positioning reference grooves 3 are respectively symmetrical with respect to the left and right positioning reference grooves 4, and the horizontal distance between the first left and right positioning grooves 6 and the left and right positioning reference grooves 4 is 10cm, and the horizontal distance between the second left and right positioning reference grooves 3 and the left and right positioning reference grooves 4 is 14 cm.
To further normalize the values; as shown in fig. 2 and 3, the lower horizontal positioning groove 11 and the upper horizontal positioning groove 10 are symmetrical with respect to the horizontal positioning reference groove 9, and the vertical distances between the lower horizontal positioning groove 11 and the upper horizontal positioning groove 10 and the horizontal positioning reference groove 9 are both 10 cm; the two front and rear positioning grooves 15 are symmetrical with respect to the front and rear positioning reference grooves 13, and the horizontal distances between the front and rear positioning grooves 15 and the front and rear positioning reference grooves 13 are both 10 cm; through standardizing numerical value, be favorable to promoting the degree of accuracy that detects.
To facilitate fixing of the reference (base) material; as shown in fig. 5 and 6, two sets of the same anti-slip rings 19 are inserted into the inner wall of the reference (base) hole 5, a plurality of fixing frames 17 are bonded to the outer wall of one side of the anti-slip rings 19, rubber springs 111 are bonded to the outer wall of one side of each fixing frame 17, and one end of each rubber spring 111 is bonded to the inner wall of the main body 1; through setting up rubber spring 111, mount 17 and antiskid circle 19, can be convenient for fixed benchmark (base) material, promote stability.
In order to improve the use experience; as shown in fig. 3, chamfers 12 are respectively arranged at the edges of the main body 1, the left and right positioning columns 2, and the front and rear positioning blocks 7; through setting up chamfer 12, can be convenient for more carefully survey the laser motion condition, promote simultaneously and use experience.
In order to facilitate observing and adjusting the level, as shown in fig. 3, a level gauge 14 is arranged on the outer wall of the bottom of the main body 1, and the level can be adjusted according to requirements by arranging the level gauge 14, so that more detailed detection is facilitated.
To further improve reliability; the main body 1 and other structures are all made of non-metal materials, and the density of the materials is close to that of water.
When the positioning device is used, a user places the die body on a positioning bed of a CT simulation positioning machine, firstly, a laser lamp fixed on the scanning hole wall of the CT machine is turned on, and whether two sides of the fixed laser lamp are superposed and coaxial with a CT mechanical center and an external laser center or not is determined by using each reference groove and each positioning groove on the die body; then, an external positioning laser lamp is turned on, the positions of the laser lines are all set to be zero positions, the height and the advance and retreat are adjusted, and the laser lines are aligned at the staggered positions of the left and right positioning reference grooves 4 and the front and rear positioning reference grooves 13 of the die body main body 1; checking the alignment condition of the left laser line and the right laser line, and determining the mutual alignment, the horizontal relation and the horizontal relation of the left laser line and the right laser line with the positioning bed; setting up a positioning laser line to move up and down (+ -10 cm), checking whether the laser line is aligned with a horizontal positioning reference groove 9, a lower horizontal positioning groove 11 and an upper horizontal positioning groove 10 on a left positioning column 2 and a right positioning column 2, then setting the laser line to move left and right (+ -10 cm/14cm), checking whether the laser line is aligned with a left positioning reference groove 4, a left positioning groove 6, a right positioning groove 3, a left positioning groove 6, a right positioning reference groove 3, a front positioning reference groove 13, a rear positioning reference groove 15 and a front positioning groove 15 on a front positioning block 7 and a rear positioning block 7, and then determining the laser line moving precision and finishing the detection of the laser line; a user sets the laser line positions as zero positions, and moves the positioning bed up and down (+/-10 cm) and back and forth (+/-10 cm); a user can fill different materials according to the CT condition through the reference (base) hole 5, the materials are fixed through the rubber spring 111, the fixing frame 17 and the anti-slip ring 19, the filling materials are used as the reference (base) materials, and a reference (base) CT value is obtained, so that comparison is facilitated; checking whether the laser lines are aligned with the corresponding scale marks or not to determine the walking precision of the treatment bed; setting the laser positions to zero positions by a user, aligning the positioning laser lines to all reference lines of the die body, entering the appointed position of the positioning bed, theoretically positioning the center of the die body at the center of the CT machine, opening the laser lines inside the CT machine, observing the relation between the internal laser lines and all reference lines of the die body, and determining the relation between the internal laser lines and the external laser centers as well as the relation between the internal laser centers and the CT machine centers; then scanning the main body part of the die body; subsequent image analysis: determining that the image of the scanning center layer is matched with analysis software of a CT simulation positioning machine according to the hole line 8, and determining whether the image has distortion, including image deformation, distortion and the like, and is accurately scanned to the center layer; comparing the CT value of the specific material in the die body with a reference (base) CT value to determine the stability of the CT value; comparing whether the die body hole line is horizontal or not, and determining the horizontal condition when the positioning bed scans; comparing the central layer of the model image with the bed entering value, and determining the relationship between the bed value reading and the central layer; comparing the center point of the mold body image center layer with the laser center to determine the actual relation between the CT mechanical center and the laser center; in addition, chamfer 12 can be convenient for more carefully survey the laser motion condition, and the level can be adjusted as required to promote to use experience surveyor's level 14 simultaneously to more careful detection.
Example 2:
the model body for morning examination and weekly examination of the CT simulation positioning machine is shown in figure 4, so that the positioning accuracy can be conveniently observed and improved; the present embodiment is modified from embodiment 1 as follows: the intersection between the left and right positioning reference grooves 4 and the front and rear positioning reference grooves 13 and between each positioning groove and the reference groove is provided with a positioning hole 16, and the positioning holes 16 are in a conical structure; the positioning hole 16 with a conical structure is arranged, so that the observation and the further improvement of the positioning accuracy are facilitated.
This embodiment is when using, and when the detection position was close to the junction between each constant head tank and the benchmark groove, the locating hole 16 of conical structure is favorable to observing and further promotes the location accuracy.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

  1. The morning examination and weekly examination die body of the CT simulation positioning machine comprises a main body (1), and is characterized in that two identical left and right positioning columns (2) are respectively arranged on the outer walls of two sides of the main body (1), and the two left and right positioning columns (2) are symmetrical relative to the main body (1); the outer walls of the two sides of the main body (1) are respectively provided with two identical front and rear positioning blocks (7); the outer wall of the top of the main body (1) is provided with a left positioning reference groove and a right positioning reference groove (4), the outer walls of the tops of two sides of the main body (1) are provided with a first left positioning groove and a right positioning groove (6), and the outer walls of the tops of the left positioning column and the right positioning column (2) are provided with a second left positioning reference groove and a second right positioning reference groove (3); the outer wall of the top of the main body (1) and the outer walls of the tops of the left positioning column and the right positioning column (2) are respectively provided with a front positioning reference groove and a rear positioning reference groove (13), and the outer walls of the tops of the front positioning block and the rear positioning block (7) are respectively provided with two symmetrical front positioning grooves and rear positioning grooves (15); the outer wall of one side of each of the left positioning column and the right positioning column (2) is provided with a horizontal positioning reference groove (9), the outer wall of the same side of each of the left positioning column and the right positioning column (2) is provided with a lower horizontal positioning groove (11), an upper horizontal positioning groove (10) is arranged above the lower horizontal positioning groove (11), and the upper horizontal positioning groove (10) and the lower horizontal positioning groove (11) are symmetrical relative to the horizontal positioning reference groove (9); the upper center, the lower center, the left center, the right center and the front center of the main body (1) are respectively provided with three penetrating hole lines (8), and the midpoints of the three hole lines (8) are intersected.
  2. 2. The morning and week examination phantom of the CT analog positioning machine as claimed in claim 1, wherein the main body (1) has four identical reference holes (5) formed on an outer wall thereof.
  3. 3. The model body for morning and week examination of a CT simulation positioning machine as claimed in claim 2, wherein the tangent planes of the left and right positioning reference grooves (4), the front and rear positioning reference grooves (13) and the positioning grooves and the reference grooves are isosceles triangles.
  4. 4. The morning and week examination phantom of a CT analog positioning machine as claimed in claim 3, wherein said first left and right positioning grooves (6) and said second left and right positioning reference grooves (3) are symmetrical with respect to the left and right positioning reference grooves (4), respectively, and the horizontal distance between the first left and right positioning grooves (6) and the left and right positioning reference grooves (4) is 10cm, and the horizontal distance between the second left and right positioning reference grooves (3) and the left and right positioning reference grooves (4) is 14 cm.
  5. 5. The morning and week examination phantom of the CT analog positioning machine as claimed in claim 4, wherein the vertical distances between the lower horizontal positioning groove (11) and the upper horizontal positioning groove (10) and the horizontal positioning reference groove (9) are both 10 cm; the two front and rear positioning grooves (15) are symmetrical about the front and rear positioning reference grooves (13), and the horizontal distances between the front and rear positioning grooves (15) and the front and rear positioning reference grooves (13) are both 10 cm.
  6. 6. The morning examination and week examination die body of the CT simulation positioning machine as claimed in claim 5, wherein two sets of the same anti-slip rings (19) are inserted into the inner wall of the reference hole (5), a plurality of fixing frames (17) are bonded to the outer wall of one side of each anti-slip ring (19), rubber springs (18) are bonded to the outer wall of one side of each fixing frame (17), and one end of each rubber spring (18) is bonded to the inner wall of the main body (1).
  7. 7. The morning examination and week examination die body of the CT simulation positioning machine as claimed in claim 6, wherein the edges of the main body (1), the left and right positioning posts (2), the front and rear positioning blocks (7) are provided with chamfers (12).
  8. 8. The morning and week examination phantom of the CT simulation locator, as claimed in claim 7, wherein the bottom outer wall of the main body (1) is provided with a level gauge (14).
  9. 9. The model body for morning examination and weekly examination of a CT simulation positioning machine according to any of claims 1-8, wherein the main body (1), the left and right positioning posts (2), and the front and rear positioning blocks (7) are all made of non-metallic materials.
  10. 10. The morning examination and weekly examination mold body of the CT simulation positioning machine according to claim 9, wherein the left and right positioning reference grooves (4), the front and rear positioning reference grooves (13) and the intersection between each positioning groove and the reference groove are provided with positioning holes (16), and the positioning holes (16) are conical structures.
CN202010150787.5A 2020-03-06 2020-03-06 Morning examination and week examination mould body of CT (computerized tomography) simulation positioning machine Expired - Fee Related CN111329501B (en)

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CN202010150787.5A CN111329501B (en) 2020-03-06 2020-03-06 Morning examination and week examination mould body of CT (computerized tomography) simulation positioning machine

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CN111329501B true CN111329501B (en) 2022-04-29

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