Accurate bone age ruler

Abstract

The utility model discloses an accurate bone age ruler, which comprises a film viewer panel, the outer wall of the film viewer panel is slidably sleeved with a U-shaped slide fastener, the outer wall of the U-shaped slide fastener is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a threaded column, and the outer wall of the threaded column is rotatably connected with a circular block. According to the utility model, the U-shaped slide fastener, the threaded column, the round block, the rubber pad, the rectangular block, the first ruler, the T-shaped long groove, the first scale line, the T-shaped column, the second ruler, the second scale line, the locking cap, the fastening cap and the limiting block are arranged, so that the first ruler and the second ruler are placed on the film viewer panel, and the first ruler and the second ruler cannot rotate when not subjected to external force through friction force; the first ruler is used for measuring the lengths of the phalanx, the radialis and the ulna, the second ruler is used for measuring the widths of the phalanx, the radialis and the ulna, multiple times of taking and calibration are not needed under the condition that the measuring precision is not affected, and standard reference and recording are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bone age, in particular to an accurate bone age ruler. Background Art

[0002] Measuring bone age can assess an individual's bone age level and determine whether their growth status is consistent with their age. It helps to understand a person's growth and development, especially in children and adolescents, and is important for timely detection of developmental abnormalities or growth problems. Common methods for measuring bone age: Usually an X-ray of the left wrist is taken. The doctor uses a ruler to measure the phalanges, radius, and ulna on the X-ray (bone age film) to observe the development of the bones, compare them with the reference standard corresponding to the normal age, and then determine the bone age.

[0003] In the prior art, using a single ruler to measure bone age has the following disadvantages: since the X-ray film needs to be placed on a film viewing lamp to fully display the phalanges, radius and ulna, the ruler needs to be moved multiple times when measuring the width and length of the phalanges, radius and ulna, and the values ​​need to be recorded immediately after the measurement so that the next measurement can be made. When explaining to parents, it is also necessary to compare with the reference standard, and the ruler needs to be held back and forth, which increases the steps of the work. Therefore, we propose an accurate bone age ruler to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an accurate bone age ruler.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A precise bone age ruler comprises a film viewing light board, wherein the outer wall sliding sleeve of the film viewing light board is provided with a U-shaped sliding buckle, the outer wall of the U-shaped sliding buckle is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a threaded column, the outer wall of the threaded column is rotatably connected with a round block, the outer wall of the round block is fixedly connected with a rectangular block, and the outer wall of the rectangular block is provided with a measuring mechanism.

[0007] Preferably, the measuring mechanism comprises a T-shaped column, the outer wall sliding sleeve of the rectangular block is provided with a first ruler, the outer walls of the rectangular block and the first ruler are provided with threaded holes, the inner walls of the threaded holes are threadedly connected with bolts, the outer wall of the first ruler is provided with a T-shaped long groove, the outer wall of the first ruler is provided with first scale lines, the inner wall of the T-shaped long groove is slidably connected to the outer wall of the T-shaped column, the outer wall of the T-shaped column is fixedly provided with a second ruler, the outer wall of the second ruler is provided with second scale lines, and the length and width of the phalanges, radius and ulna are measured by setting the first scale lines and the second scale lines.

[0008] Preferably, a fastening cap is provided on the threaded sleeve of the outer wall of the threaded column, and the outer wall of the fastening cap is pressed against the outer wall of the U-shaped slider, and the friction between the round block and the rubber pad is adjusted by providing the fastening cap.

[0009] Preferably, a rubber pad is fixedly connected to the inner wall of the circular groove, and the outer wall of the rubber pad is pressed against the outer wall of the circular block, so that the circular block is assisted to rotate by providing the rubber pad.

[0010] Preferably, a locking cap is provided on the threaded sleeve of the outer wall of the T-shaped column, and the outer wall of the locking cap is pressed against the outer wall of the second ruler, and the second ruler is fixed on the first ruler by arranging the locking cap and the T-shaped column.

[0011] Preferably, the bottom of the first ruler is fixedly connected to a limit block, and the limit block is provided to prevent the second ruler from sliding downward out of the first ruler.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] This solution places the first ruler and the second ruler on the film viewing light board by arranging a U-shaped slide buckle, a threaded column, a round block, a rubber pad, a rectangular block, a first ruler, a T-shaped long groove, a first scale line, a T-shaped column, a second ruler, a second scale line, a locking cap, a fastening cap and a limit block. The friction force prevents the first ruler and the second ruler from rotating when not subjected to external force. The first ruler measures the length of the phalanges and the radius and ulna, and the second ruler measures the width of the phalanges and the radius and ulna. Without affecting the measurement accuracy, there is no need to take and calibrate multiple times, and it is convenient to refer to standards and record. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an accurate bone age ruler proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of an accurate bone age ruler proposed by the utility model;

[0017] Figure 3 The utility model provides a precise bone age ruler Figure 2 A schematic diagram of the enlarged structure of part A;

[0018] Figure 4 This is a partial three-dimensional structural schematic diagram of an accurate bone age ruler proposed by the utility model;

[0019] Figure 5 The utility model is a schematic diagram of the T-shaped column and locking cap structure of a precise bone age ruler.

[0020] In the figure: 1. film viewing light board; 2. U-shaped slide buckle; 3. threaded column; 4. round block; 5. rubber pad; 6. rectangular block; 7. first ruler; 8. T-shaped long groove; 9. first scale line; 10. T-shaped column; 11. second ruler; 12. second scale line; 13. locking cap; 14. fastening cap; 15. limit block; 16. bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 5 As shown, it relates to a precise bone age ruler, including a film viewing light board 1, the outer wall sliding sleeve of the film viewing light board 1 is provided with a U-shaped slider 2, the U-shaped slider 2 drives the first ruler 7 and the second ruler 11 to move, the outer wall of the U-shaped slider 2 is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a threaded column 3, the outer wall thread sleeve of the threaded column 3 is provided with a fastening cap 14, the outer wall of the fastening cap 14 is squeezed with the outer wall of the U-shaped slider 2, and the force of rotating the first ruler 7 is adjusted by rotating the fastening cap 14.

[0023] The outer wall of the threaded column 3 is rotatably connected with a round block 4, the inner wall of the circular groove is fixedly connected with a rubber pad 5, the outer wall of the rubber pad 5 is pressed against the outer wall of the round block 4, and the outer wall of the round block 4 is fixedly connected with a rectangular block 6.

[0024] The outer wall of the rectangular block 6 is provided with a measuring mechanism, which includes a T-shaped column 10. The outer wall sliding sleeve of the rectangular block 6 is provided with a first ruler 7. The outer walls of the rectangular block 6 and the first ruler 7 are provided with threaded holes. The inner walls of the threaded holes are threadedly connected with bolts 16. Rotating the bolts 16 can release the position fixation between the rectangular block 6 and the first ruler 7 to form a detachable installation. The outer wall of the first ruler 7 is provided with a T-shaped long groove 8, and the outer wall of the first ruler 7 is provided with a first scale line 9.

[0025] The inner wall of the T-shaped long groove 8 is slidably connected to the outer wall of the T-shaped column 10. The outer wall of the T-shaped column 10 is fixedly sleeved with a second ruler 11. The outer wall of the second ruler 11 is provided with a second scale line 12. The outer wall threaded sleeve of the T-shaped column 10 is provided with a locking cap 13. The outer wall of the locking cap 13 is squeezed with the outer wall of the second ruler 11. Rotating the locking cap 13 can drive the second ruler 11 to move up and down relative to the first ruler 7. There is a certain friction between the first ruler 7 and the second ruler 11, and the size of the friction is adjusted by rotating the locking cap 13. The bottom of the first ruler 7 is fixedly connected to a limiting block 15.

[0026] Working principle: Place the X-ray film of the hand on the viewing light board 1, move the U-shaped slider 2 during measurement, drive the first ruler 7 and the second ruler 11 to be located on the X-ray film, and when measuring the phalanges, rotate the fastening cap 14 to release the squeezing force on the round block 4, so that the round block 4 rotates through the threaded column 3, and the rotation of the round block 4 drives the rectangular block 6 to rotate, and the rotation of the rectangular block 6 drives the first ruler 7 to rotate, so that the scale line on the first ruler 7 fits the outer wall edge of the phalanges, and rotate the locking cap 1 The position fixation of the second ruler 11 is released, and the second ruler 11 is driven to move up and down relative to the first ruler 7 by limiting the position of the T-shaped column 10 between the T-shaped long grooves 8, and the second ruler 11 is rotated to make it perpendicular to the phalanges, and the width thereof is measured, and then the fastening cap 14 and the locking cap 13 are rotated to slightly lock the first ruler 7 and the second ruler 11, and it is not necessary to completely lock them, mainly to facilitate subsequent rotation. When measuring the radius and ulna in the subsequent time, it is not necessary to take and calibrate them multiple times, and it is convenient for reference standards and records.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A precise bone age ruler, comprising a viewing light board (1), characterized in that: The outer wall sliding sleeve of the film viewing lamp board (1) is provided with a U-shaped sliding buckle (2), the outer wall of the U-shaped sliding buckle (2) is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a threaded column (3), the outer wall of the threaded column (3) is rotatably connected with a round block (4), the outer wall of the round block (4) is fixedly connected with a rectangular block (6), and the outer wall of the rectangular block (6) is provided with a measuring mechanism.

2. The accurate bone age ruler according to claim 1, characterized in that: The measuring mechanism comprises a T-shaped column (10), a first ruler (7) is slidably sleeved on the outer wall of the rectangular block (6), threaded holes are provided on the outer walls of the rectangular block (6) and the first ruler (7), bolts (16) are threadedly connected to the inner walls of the threaded holes, a T-shaped long groove (8) is provided on the outer wall of the first ruler (7), a first scale line (9) is provided on the outer wall of the first ruler (7), the inner wall of the T-shaped long groove (8) is slidably connected to the outer wall of the T-shaped column (10), a second ruler (11) is fixedly sleeved on the outer wall of the T-shaped column (10), and a second scale line (12) is provided on the outer wall of the second ruler (11).

3. The accurate bone age ruler according to claim 1, characterized in that: The outer wall of the threaded column (3) is threadedly sleeved with a fastening cap (14), and the outer wall of the fastening cap (14) is pressed against the outer wall of the U-shaped sliding buckle (2).

4. The accurate bone age ruler according to claim 1, characterized in that: The inner wall of the circular groove is fixedly connected with a rubber pad (5), and the outer wall of the rubber pad (5) is pressed against the outer wall of the circular block (4).

5. The accurate bone age ruler according to claim 2, characterized in that: The outer wall of the T-shaped column (10) is threadedly sleeved with a locking cap (13), and the outer wall of the locking cap (13) is pressed against the outer wall of the second ruler (11).

6. The accurate bone age ruler according to claim 2, characterized in that: The bottom of the first ruler (7) is fixedly connected to a limiting block (15).

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