X-ray children's bone age measurement hand fixation device

Abstract

The present invention discloses a hand fixing and placing device for measuring the bone age of children through X-ray, comprising a hand supporting plate for supporting the distal end of the arm, the wrist, the palm, the little finger, the ring finger, the middle finger and the index finger, and a supporting block for supporting the thumb; the hand supporting plate and the supporting block are both made of X-ray transparent materials; a palm accommodating groove is formed on the rear side of the upper end surface of the hand supporting plate, and a little finger accommodating groove, a ring finger accommodating groove, a middle finger accommodating groove and an index finger accommodating groove are formed on the front side of the upper end surface; the supporting block is arranged on the right side of the hand supporting plate and can move forward and backward, and a thumb accommodating groove is arranged on the upper end surface to the right; the present invention can separate the little finger, the ring finger, the middle finger, the index finger and the thumb of the child, so that it is convenient to carry out clear X-ray shooting later, so that the child's bone age measurement effect is good, and the present invention can be suitable for children of different age groups as much as possible, so that the fingers of children of different age groups can be flexibly separated to facilitate the clear X-ray shooting later, so that the use is highly adaptable and the use effect of the present invention is good.

Description

Technical Field

[0001] The invention relates to the technical field of medical products, and in particular to a hand-fixing device for measuring the bone age of children through X-ray. Background Art

[0002] Human growth and development can be expressed by two "ages", namely life age (calendar age) and biological age (bone age).

[0003] The changes in human bone development are basically similar, and the development process of each bone is continuous and staged. Bones at different stages have different morphological characteristics.

[0004] Therefore, bone age assessment can more accurately reflect an individual's growth and development level and degree of maturity. It can not only determine a child's biological age, but also understand a child's growth and development potential and sexual maturity trend early through bone age. Bone age can also predict a child's adult height. Bone age determination is also very helpful in the diagnosis of some pediatric endocrine diseases. Bone age was first used in medicine to study and measure children's growth and development, and was subsequently used extensively to determine an athlete's actual age to determine their eligibility. Bone age identification methods are more widely used in the judicial process and play a very important role.

[0005] In the prior art, the measurement of bone age usually requires the use of specific images of bones in X-ray photography. Specifically, it is usually based on an X-ray of the palm of a child's left hand as a unified standard. Doctors use X-rays to observe the development of the ossification center of the child's palm and phalanges to determine the bone age.

[0006] When measuring, children are required to spread their fingers apart to avoid their fingers coming close to or crossing each other, which may cause the adjacent phalanges in the X-ray image to be too close or crossed, making it difficult to observe and confirm the details. However, children, especially infants, are naturally active, making it difficult to control their fingers during bone age measurement. Medical staff can only take X-rays of their palms and fingers at the moment when their fingers are open, which often makes the shooting time long, which in turn makes the shooting time-consuming and laborious.

[0007] At present, there is no hand fixation device suitable for children of different ages to separate their fingers for measuring bone age, so the existing problem needs to be solved. Summary of the invention

[0008] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a hand-holding device for measuring the bone age of children through X-ray.

[0009] The technical solution adopted by the present invention to solve the existing technical problems is: a hand fixing device for measuring the bone age of children through X-ray, including a hand support plate for supporting the palm, little finger, ring finger, middle finger, index finger and a support block for supporting the thumb;

[0010] The hand support plate and the support block are both made of X-ray transparent materials;

[0011] The rear side of the upper surface of the hand support plate is concave downward to form a palm receiving groove for accommodating a palm, and the front side of the upper surface of the hand support plate is concave downward along the front-to-back direction to form a little finger receiving groove for accommodating a little finger, a ring finger receiving groove for accommodating a ring finger, a middle finger receiving groove for accommodating a middle finger, and an index finger receiving groove for accommodating an index finger in parallel; the support block is arranged on the right side of the hand support plate so as to be movable forward and backward, and a thumb receiving groove for accommodating a thumb is arranged on the upper surface of the support block to the right;

[0012] The little finger accommodating groove, the ring finger accommodating groove, the middle finger accommodating groove, the index finger accommodating groove and the thumb accommodating groove are respectively connected to the palm accommodating groove.

[0013] The above technical solution is further explained below:

[0014] Preferably, a notch connected to the palm receiving groove is formed on the right side of the palm support plate; a front extending groove is formed forwardly on the front wall of the notch, and a rear extending groove is formed backwardly on the rear wall of the notch;

[0015] The front end surface of the support block is provided with a front extension portion extending forward near the left side thereof and adapted to be inserted into the front extension slot, and the rear end surface of the support block is provided with a rear extension portion extending backward near the left side thereof and adapted to be inserted into the rear extension slot;

[0016] The length between the front end of the front extension part and the rear end of the support block and the length between the rear end of the rear extension part and the front end of the support block are slightly larger than the distance between the front wall of the notch and the rear wall of the notch, so that the support block cannot slide off when moving forward and backward and is arranged on the right side of the hand support plate.

[0017] Preferably, the left side surface of the support block abuts against the left side surface of the notch; the lower bottom surface of the support block is flush with the lower bottom surface of the hand support plate, and the bottom of the thumb accommodating groove provided on the support block is flush with the bottom of the palm accommodating groove.

[0018] Preferably, the front side of the hand support plate is provided with an arc-shaped little finger fixing sleeve integrally formed therewith for securing the little finger at the upper rear part of the little finger accommodating groove notch, which protrudes upward; the front side of the hand support plate is provided with an arc-shaped ring finger fixing sleeve integrally formed therewith for securing the ring finger at the upper rear part of the ring finger accommodating groove notch, which protrudes upward; the front side of the hand support plate is provided with an arc-shaped middle finger fixing sleeve integrally formed therewith for securing the middle finger at the upper rear part of the middle finger accommodating groove notch, which protrudes upward; the front side of the hand support plate is provided with an arc-shaped index finger fixing sleeve integrally formed therewith for securing the index finger at the upper rear part of the index finger accommodating groove notch, which protrudes upward.

[0019] Preferably, the left side of the support block is provided with an arc-shaped thumb fixing sleeve which is integrally formed therewith and is used for fixing the thumb, protruding upward at the upper left part of the notch of the thumb receiving groove;

[0020] Preferably, a supporting portion for supporting the distal end of the arm and the wrist is provided extending backwards from the rear side of the hand support plate.

[0021] Preferably, an arm and wrist accommodating groove connected to the palm accommodating groove is downwardly opened on the upper end surface of the supporting portion.

[0022] Preferably, it also includes a fastening member for fastening the wrist;

[0023] The fastening piece includes an elastic band with a length equal to or less than the width of the supporting part, a male Velcro and a female Velcro; the lower end of the elastic band is fixed to the left side of the supporting part, and the upper end is connected to the male Velcro; the female Velcro is fixed to the right side of the supporting part and is opposite to the lower end of the elastic band.

[0024] Preferably, the hand support plate and the support block are both made of carbon fiber material that is transparent to X-rays.

[0025] The beneficial effects of the present invention are:

[0026] First, the present invention provides a hand-fixing device for measuring the bone age of children through X-ray. During specific implementation, on the one hand, because the hand support plate and the support block are made of X-ray transparent materials, the present invention can be placed in an X-ray transparent machine for measuring bone age, and the palms and fingers of the child can be placed on the hand support plate and the support block, so that the child's little finger, ring finger, middle finger, index finger and thumb can be separated, so that it is convenient to clearly take X-rays later, so that the child's bone age measurement effect is good. On the other hand, the widths of the little finger accommodating groove, the ring finger accommodating groove, the middle finger accommodating groove, the index finger accommodating groove and the thumb accommodating groove are appropriately widened in advance. Because the support block is movable forward and backward and is arranged on the right side of the hand support plate, the thumb accommodating groove thereon can be moved forward and backward. For young children, whose palms and fingers are small and short, at this time, the support block can be placed on the hand support plate. The support block is moved forward to a suitable position so that the thumb accommodating groove thereon is as close as possible to the little finger accommodating groove, the ring finger accommodating groove, the middle finger accommodating groove and the index finger accommodating groove, so that the present invention is convenient for holding up the hands of young children with small palms and fingers to assist in measuring their bone age. For older children, whose palms and fingers are relatively large, at this time, the support block can be moved backward to a suitable position so that the thumb accommodating groove thereon is as far away as possible from the little finger accommodating groove, the ring finger accommodating groove, the middle finger accommodating groove and the index finger accommodating groove, so that the present invention is convenient for holding up the hands of older children with relatively large palms and fingers. As a result, the present invention can be as suitable as possible for children of different age groups to use, so that the fingers of children of different age groups can be flexibly separated to facilitate the subsequent clear X-ray shooting, so that it is highly adaptable to use, and thus, the present invention has a good use effect.

[0027] Secondly, in the present technical scheme, on the one hand, the support block is arranged on the right side of the hand support plate so as to be unable to slide away when moving forward and backward, and the left side surface of the support block is in contact with the left side surface of the notch; the lower bottom surface of the support block is flush with the lower bottom surface of the hand support plate, and the bottom of the thumb accommodating groove provided on the support block is flush with the bottom of the palm accommodating groove. In this way, the support block has good anti-falling property and good reliability in use. On the other hand, the arc-shaped little finger fixing sleeve, arc-shaped ring finger fixing sleeve, arc-shaped middle finger fixing sleeve, arc-shaped index finger fixing sleeve and arc-shaped thumb fixing sleeve are convenient for correspondingly fixing the little finger, ring finger, middle finger, index finger and thumb of children, so that children can wear it directly when using it, and then it is convenient to put it into the X-ray machine synchronously after they wear the present invention, so that their fingers can be effectively prevented from crossing, moving or closing together in a large range when taking X-rays. Furthermore, the present invention has stronger reliability in use, so that the use effect can be effectively improved.

[0028] Third, in the present embodiment, since the rear side of the hand support plate is extended backward to provide a supporting portion for supporting the distal end of the arm and the wrist, the upper end surface of the supporting portion is downwardly provided with an arm and wrist accommodating groove connected to the palm accommodating groove, and the present invention also includes a fastening piece for tightening the wrist; the fastening piece includes an elastic band, a male Velcro and a female Velcro, the length of which is equal to or less than the width of the supporting portion; the lower end of the elastic band is fixedly arranged on the left side of the supporting portion, and the upper end is connected to the male Velcro; the female Velcro is fixedly arranged on the right side of the supporting portion and is opposite to the lower end of the elastic band. In this way, when the present invention is used, the fastening piece is tied to the child's wrist, which makes the present invention more resistant to falling off when worn, and makes the subsequent measurement of the child's bone age faster and more time-saving, so that the use effect of the present invention can be optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the hand-fixing device for measuring the bone age of children through X-ray of the present invention;

[0030] Figure 2 It is an exploded view of the hand-holding device for measuring the bone age of children through X-ray of the present invention;

[0031] Figure 3 yes Figure 2 , an enlarged view of the support block;

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0033] Figure Number:

[0034] X-ray children's bone age measurement hand fixation device 1000;

[0035] Hand support plate 10;

[0036] Palm receiving groove 101; little finger receiving groove 102; ring finger receiving groove 103; middle finger receiving groove 104; index finger receiving groove 105; notch 106; front extension groove 1061; arc-shaped little finger fixing sleeve 107; arc-shaped ring finger fixing sleeve 108; arc-shaped middle finger fixing sleeve 109; arc-shaped index finger fixing sleeve 110; lifting part 111; arm and wrist receiving groove 1111;

[0037] Support block 20;

[0038] Thumb accommodating groove 201; front extension portion 202; rear extension portion 203; arc-shaped thumb fixing sleeve 204;

[0039] Fastening member 30;

[0040] Elastic elastic band 301; male Velcro 302; female Velcro 303. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly and intuitively understand the inventive essence of the present invention.

[0042] Combination Figure 1 , Figure 2 and Figure 3 As shown;

[0043] The hand holding device 1000 for measuring the bone age of children through X-ray provided by the present invention comprises, in specific implementation, a hand holding plate 10 for holding up the palm, little finger, ring finger, middle finger, and index finger, and a holding block 20 for holding up the thumb;

[0044] Wherein, the hand support plate 10 and the support block 20 are both made of X-ray transparent materials;

[0045] Furthermore, the rear side of the upper end surface of the hand support plate 10 is concave downward to form a palm receiving groove 101 for accommodating a palm, and the front side of the upper end surface of the hand support plate 10 is concave downward along the front-to-back direction to form a little finger receiving groove 102 for accommodating a little finger, a ring finger receiving groove 103 for accommodating a ring finger, a middle finger receiving groove 104 for accommodating a middle finger, and an index finger receiving groove 105 for accommodating an index finger; the support block 20 is movably arranged on the right side of the hand support plate 10, and a thumb receiving groove 201 for accommodating a thumb is arranged on the upper end surface of the support block 20 to the right;

[0046] At the same time, the little finger accommodating groove 102 , the ring finger accommodating groove 103 , the middle finger accommodating groove 104 , the index finger accommodating groove 105 and the thumb accommodating groove 201 are respectively connected to the palm accommodating groove 101 .

[0047] Based on the above, it is clear that the present invention, when implemented, is mainly used as a hand-holding device 1000 for measuring the bone age of children through X-ray.

[0048] On the one hand, because the hand support plate 10 and the support block 20 are both made of X-ray transparent materials, the present invention can be placed in an X-ray transparent machine for measuring bone age, and the palms and fingers of the child are placed on the hand support plate 10 and the support block 20, so that the child's little finger, ring finger, middle finger, index finger and thumb can be separated, making it easier to clearly take X-rays later, thereby achieving a good effect in measuring the child's bone age.

[0049] On the other hand, the little finger accommodating groove 102, the ring finger accommodating groove 103, the middle finger accommodating groove 104, the index finger accommodating groove 105 and the thumb accommodating groove 201 are appropriately widened and appropriately long in advance. Since the support block 20 is arranged on the right side of the hand support plate 10 and can be moved forward and backward, the thumb accommodating groove 201 thereon can be moved forward and backward. For young children, whose palms and fingers are small and short, the support block 20 can be moved forward to a suitable position at this time, so that the thumb accommodating groove 201 thereon is as close as possible to the little finger accommodating groove 102, the ring finger accommodating groove 103, the middle finger accommodating groove 104 and the index finger accommodating groove 105, so that the present invention It is convenient to hold up the hands of young children with smaller and shorter palms and fingers to assist in measuring their bone age. For older children, their palms and fingers are relatively larger and longer. At this time, the support block 20 can be moved backward to a suitable position to make the thumb accommodating groove 201 thereon as far away as possible from the little finger accommodating groove 102, the ring finger accommodating groove 103, the middle finger accommodating groove 104 and the index finger accommodating groove 105, so that the present invention is convenient for holding up the hands of older children with relatively larger and longer palms and fingers. Therefore, the present invention can be as suitable as possible for children of different age groups, so that the fingers of children of different age groups can be flexibly separated to facilitate the subsequent clear X-ray shooting, making it highly adaptable to use.

[0050] Furthermore, the present invention has good use effect.

[0051] It should be emphasized that in the preferred embodiment, a notch 106 connected to the palm receiving groove 101 is formed on the right side of the hand support plate 10; a front extension groove 1061 is formed forward on the front wall of the notch 106, and a rear extension groove (not shown) is formed backward on the rear wall of the notch 106;

[0052] The front end surface of the support block 20 is provided with a front extension portion 202 extending forward near the left side thereof and suitable for being inserted into the front extension slot 1061, and the rear end surface of the support block 20 is provided with a rear extension portion 203 extending backward near the left side thereof and suitable for being inserted into the rear extension slot (not shown);

[0053] The length between the front end of the front extension part 202 and the rear end surface of the support block 20 and the length between the rear end of the rear extension part 203 and the front end surface of the support block 20 are slightly larger than the distance between the front wall of the notch 106 and the rear wall of the notch 106, so that the support block 20 cannot slide off when moving forward and backward and is arranged on the right side of the hand support plate 10.

[0054] Furthermore, when the support block 20 is moved forward and backward and cannot slide away and is arranged on the right side of the hand support plate 10, the left side of the support block 20 abuts against the left side of the notch 106; the lower bottom surface of the support block 20 is flush with the lower bottom surface of the hand support plate 10, and the bottom of the thumb accommodating groove 201 provided on the support block 20 is flush with the bottom of the palm accommodating groove 101.

[0055] In this way, the support block 20 has good anti-falling property and good reliability in use.

[0056] In addition, in a specific implementation, the front side of the hand support plate 10 is provided with an arc-shaped little finger fixing sleeve 107 integrally formed therewith for fixing the little finger, which is protruding upward at the upper rear part of the little finger accommodating groove 102; the front side of the hand support plate 10 is provided with an arc-shaped ring finger fixing sleeve 108 integrally formed therewith for fixing the ring finger, which is protruding upward at the upper rear part of the ring finger accommodating groove 103; the front side of the hand support plate 10 is provided with an arc-shaped middle finger fixing sleeve 109 integrally formed therewith for fixing the middle finger, which is protruding upward at the upper rear part of the middle finger accommodating groove 104; the front side of the hand support plate 10 is provided with an arc-shaped index finger fixing sleeve 110 integrally formed therewith for fixing the index finger, which is protruding upward at the upper rear part of the index finger accommodating groove 105.

[0057] In addition, the left side of the support block 20 is provided with an arc-shaped thumb fixing sleeve 204 formed integrally therewith and used for fixing the thumb, which protrudes upwards from the upper left part of the notch of the thumb receiving groove 201;

[0058] Therefore, the arc-shaped little finger fixing sleeve 107, the arc-shaped ring finger fixing sleeve 108, the arc-shaped middle finger fixing sleeve 109, the arc-shaped index finger fixing sleeve and the arc-shaped thumb fixing sleeve 204 are convenient for correspondingly fixing the little finger, ring finger, middle finger, index finger and thumb of the child, so that the child can wear it directly when using it, and then it is convenient to put it into the X-ray machine synchronously after wearing the present invention, so as to effectively prevent the fingers from crossing and moving or closing together in a large range when taking X-rays.

[0059] Furthermore, the present invention has stronger reliability in use, so that the use effect can be effectively improved.

[0060] Furthermore, in the present technical solution, a supporting portion 111 is provided on the rear side of the hand support plate 10 to support the distal end of the arm and the wrist.

[0061] An arm and wrist receiving groove 1111 communicating with the palm receiving groove 101 is formed downwardly on the upper end surface of the supporting portion 111 .

[0062] On this basis, the present invention further comprises a fastening member 30 for fastening the wrist;

[0063] Among them, the fastening member 30 includes an elastic band 301 with a length equal to or less than the width of the supporting part, a male Velcro 302 and a female Velcro 303; the lower end of the elastic band 301 is fixed on the left side of the supporting part 111, and the upper end is connected to the male Velcro 302; the female Velcro 303 is fixed on the right side of the supporting part 111, and is opposite to the lower end of the elastic band 301.

[0064] In this way, when using the present invention, the fastening piece 30 is tied to the child's wrist, that is, when the child's hand is placed on the present invention, the elastic band 301 is pulled to make the male Velcro 302 adhere to the female Velcro 303 to tie the child's wrist, so that the present invention is more resistant to falling off when worn, making the subsequent measurement of the child's bone age faster and more time-saving.

[0065] Thereby, the use effect of the present invention can be optimized.

[0066] It should be added that, in a specific implementation, the hand support plate 10 and the support block 20 are both made of carbon fiber material that is transparent to X-rays.

[0067] Obviously, in this embodiment, the arc-shaped little finger fixing sleeve 107, the arc-shaped ring finger fixing sleeve 108, the arc-shaped middle finger fixing sleeve 109, the arc-shaped index finger fixing sleeve 110 and the arc-shaped thumb fixing sleeve 204 are all made of carbon fiber material that is transmissive to X-rays, so that when a child wears the device of the present invention, the X-ray transmittance of the palm and five fingers that need to be transmissive to X-rays is reduced, so that the final X-ray image can only see the bone joint contours of the child's palm and five fingers, which can facilitate medical staff to observe and measure bone age.

[0068] It should be further added that, in a specific implementation, the front extension portion 202 and the rear extension portion 203 are preferably respectively bonded to the front end surface of the support block 20 and the rear end surface of the support block 20 by medical adhesive;

[0069] Specifically, before use, the front end of the front extension part 202 is pre-extended into the front extension groove 1061, and the rear end thereof is adhered to the front end surface of the support block 20 by medical adhesive, and the rear end of the rear extension part 203 is pre-extended into the rear extension groove (not shown), and the front end thereof is adhered to the rear end surface of the support block 20 by medical adhesive. In this way, the support block 20 cannot slide away from the hand support plate 10.

[0070] Moreover, in a preferred embodiment, the outer diameter of the front extension portion 202 is matched with the inner diameter of the front extension groove 1061, the outer diameter of the rear extension portion 203 is matched with the inner diameter of the rear extension groove, and the front extension portion 202, the rear extension portion 203, the front extension groove 1061 and the rear extension groove (not shown) are all square structures, so that the front extension portion 202 cannot rotate relative to the front extension groove 1061, and the rear extension portion 203 cannot rotate relative to the rear extension groove (not shown), so that the support block 20 cannot rotate relative to the palm support plate 10, so that it is more stable and reliable to use.

[0071] Other embodiments and the like are not described one by one here.

[0072] In summary, the overall structure of the present invention is simple, easy to implement, easy to operate, highly practical, highly specific, and has low manufacturing cost, which makes the present invention inevitably have good market promotion value. The present invention will be very popular and can be effectively popularized.

[0073] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hand-fixing device for measuring the bone age of children through X-ray, Features: It includes a hand support plate for supporting the palm, little finger, ring finger, middle finger, index finger and a support block for supporting the thumb; The hand support plate and the support block are both made of X-ray transparent materials; The rear side of the upper surface of the hand support plate is concave downward to form a palm receiving groove for accommodating a palm, and the front side of the upper surface of the hand support plate is concave downward along the front-to-back direction to form a little finger receiving groove for accommodating a little finger, a ring finger receiving groove for accommodating a ring finger, a middle finger receiving groove for accommodating a middle finger, and an index finger receiving groove for accommodating an index finger in parallel; the support block is arranged on the right side of the hand support plate so as to be movable forward and backward, and a thumb receiving groove for accommodating a thumb is arranged on the upper surface of the support block to the right; The little finger accommodating groove, the ring finger accommodating groove, the middle finger accommodating groove, the index finger accommodating groove and the thumb accommodating groove are respectively connected to the palm accommodating groove; The right side of the hand support plate is provided with a notch connected to the palm receiving groove; the front wall of the notch is provided with a front extending groove forwardly, and the rear wall of the notch is provided with a rear extending groove backwardly; The front end surface of the support block is provided with a front extension portion extending forward near the left side thereof and adapted to be inserted into the front extension slot, and the rear end surface of the support block is provided with a rear extension portion extending backward near the left side thereof and adapted to be inserted into the rear extension slot; The length between the front end of the front extension part and the rear end of the support block and the length between the rear end of the rear extension part and the front end of the support block are both slightly larger than the distance between the front wall of the notch and the rear wall of the notch, so that the support block cannot slide off when moving forward and backward and is arranged on the right side of the hand support plate; The outer diameter of the front extension part is matched with the inner diameter of the front extension groove, the outer diameter of the rear extension part is matched with the inner diameter of the rear extension groove, and the front extension part, the rear extension part, the front extension groove and the rear extension groove are all square structures, so that the front extension part cannot rotate relative to the front extension groove, and the rear extension part cannot rotate relative to the rear extension groove.

2. The hand-holding device for measuring the bone age of children through X-ray according to claim 1, Features: The left side of the support block abuts against the left side of the notch; the lower bottom surface of the support block is flush with the lower bottom surface of the hand support plate, and the bottom of the thumb accommodating groove provided on the support block is flush with the bottom of the palm accommodating groove.

3. The hand-holding device for measuring the bone age of children through X-ray according to claim 2, Features: The front side of the hand support plate is protruding upward at the upper rear part of the little finger accommodating groove, and is provided with an arc-shaped little finger fixing sleeve integrally formed therewith for fixing the little finger; the front side of the hand support plate is protruding upward at the upper rear part of the ring finger accommodating groove, and is provided with an arc-shaped ring finger fixing sleeve integrally formed therewith for fixing the ring finger; the front side of the hand support plate is protruding upward at the upper rear part of the middle finger accommodating groove, and is provided with an arc-shaped middle finger fixing sleeve integrally formed therewith for fixing the middle finger; the front side of the hand support plate is protruding upward at the upper rear part of the index finger accommodating groove, and is provided with an arc-shaped index finger fixing sleeve integrally formed therewith for fixing the index finger.

4. The hand-holding device for measuring the bone age of children through X-ray according to claim 3, Features: The left side of the support block is provided with an arc-shaped thumb fixing sleeve which is integrally formed therewith and is used for fixing the thumb and protruding upward at the upper left part of the thumb accommodating groove.

5. The hand-holding device for measuring the bone age of children through X-ray according to claim 4, Features: The rear side of the hand support plate is extended backwards to be provided with a supporting portion for supporting the distal end of the arm and the wrist.

6. The hand-holding device for measuring the bone age of children through X-ray according to claim 5, Features: The upper end surface of the supporting part is downwardly provided with an arm and wrist accommodating groove which is connected with the palm accommodating groove.

7. The hand-holding device for measuring the bone age of children through X-ray according to claim 6, Features: Also included is a fastening member for fastening the wrist; The fastening piece includes an elastic band with a length equal to or less than the width of the supporting part, a male Velcro and a female Velcro; the lower end of the elastic band is fixed to the left side of the supporting part, and the upper end is connected to the male Velcro; the female Velcro is fixed to the right side of the supporting part and is opposite to the lower end of the elastic band.

8. The hand-holding device for measuring the bone age of children through X-ray according to any one of claims 1 to 7, Features: The hand support plate and the support block are both made of carbon fiber material that is transparent to X-rays.

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