Fixing device for medical experiment radiation diagnosis and treatment positioning

Abstract

The invention provides a fixing device for medical experiment radiation diagnosis and treatment positioning. The fixing device comprises a placing plate and a side moving part. When the animal lies on the side, the movable plate moves in the opening, the first bolts on the head fixing part, the tail fixing part and the tail fixing part are screwed into the corresponding first bolt holes, then the head, the trunk tail and the tail of the animal are fixed through the head fixing part, the tail fixing part and the tail fixing part respectively, and when the animal lies on the side, the movable plate moves in the opening; when the animal lies on the back or lies on the back, the movable plate is fixed through fasteners, second bolts on two side fixing pieces on the movable plate are screwed into corresponding second bolt holes respectively, and then the two legs at the front end and the two legs at the rear end of the animal are fixed through the two side fixing pieces respectively. The first bolts on the four leg fixing pieces are screwed into the corresponding first bolt holes respectively, so that the four legs of the animal lying on the back or lying on the back can be fixed, and the animals with different sizes and different placement positions can be fixed.

Description

Technical Field

[0001] The present invention relates to a fixing device for radiotherapy positioning in medical experiments, and particularly to a technology capable of fixing animals of different sizes and different positions. Background Art

[0002] Animal radiotherapy plays an important role in veterinary medicine. It utilizes the penetrating property of X-rays to obtain image information of organs and tissues inside animals, thereby assisting doctors in disease diagnosis. This image information can help doctors understand abnormal conditions inside animals, such as fractures, tumors, pneumonia, etc., and then formulate appropriate treatment plans.

[0003] Usually, when animals are undergoing radiotherapy, anesthesia is required to avoid the animals moving back and forth during radiotherapy.

[0004] Although animals cannot move after being anesthetized, further fixation of animals of different sizes is required during radiotherapy to more accurately perform radiotherapy on a certain position of the animal. However, since animals of different sizes require different positioning methods during radiotherapy, such as lying on the side, lying on the back (mouth facing up), and lying on the stomach (mouth facing down), the prior art cannot fix animals of different sizes and different positions. Summary of the Invention

[0005] To solve the problems existing in the above technology, the present invention provides a technology capable of fixing animals of different sizes and different positions.

[0006] A fixing device for radiotherapy positioning in medical experiments provided by the present invention includes a placement plate and side moving members;

[0007] Openings are respectively provided on both sides of the upper end of the placement plate. A plurality of first bolt holes are provided in the middle of the upper end of the placement plate. A head fixing member is provided in the middle of the upper end of the placement plate. A tail fixing member is provided in the middle of the lower end of the placement plate. A tail fixing member is provided at the end of the lower end of the placement plate. Leg fixing members are respectively provided at the four corners of the middle of the placement plate. The head fixing member, the tail fixing member, the tail fixing member, and the four leg fixing members are respectively matched with the plurality of first bolt holes through first bolts;

[0008] There are two groups of the side moving members. The two groups of side moving members are respectively movably arranged in the openings on both sides. Each group of side moving members includes a moving plate and two side fixing members. The moving plate is movably arranged in the opening and is fixed by a fastening member. A plurality of second bolt holes are provided at the upper end of the moving plate. The two side fixing members are respectively matched with the plurality of second bolt holes through second bolts.

[0009] The above beneficial effects are as follows: Screw the first bolts on the head fixing member, tail fixing member and tail fixing member into the corresponding first bolt holes. Then, fix the head, torso tail and tail of the animal through the head fixing member, tail fixing member and tail fixing member respectively. When the animal lies on its side, the moving plate moves within the opening and is fixed by the fasteners. The second bolts on the two side fixing members on the moving plate are respectively screwed into the corresponding second bolt holes, and then the front two legs and the rear two legs of the animal are fixed by the two side fixing members respectively. When the animal lies on its back or stomach, the first bolts on the four leg fixing members are respectively screwed into the corresponding first bolt holes, and the four legs of the animal when lying on its back or stomach can be fixed, thereby achieving the fixation of animals of different sizes and different postures.

[0010] A preferred solution is that transverse grooves are respectively arranged at the upper and lower ends within the opening, transverse holes are arranged at the upper ends of the transverse grooves, both ends of the moving plate are respectively movably arranged within the transverse grooves, there are two fasteners, the two fasteners are respectively arranged at both ends of the moving plate, both fasteners include a screw rod and a fastening nut, the screw rod is arranged at the end of the moving plate, the upper end of the screw rod passes through the transverse hole, and the fastening nut is arranged at the upper end of the screw rod.

[0011] A preferred solution is that both the head fixing member and the tail fixing member include a first arc-shaped plate and a second arc-shaped plate. The inner ends of the first arc-shaped plate and the second arc-shaped plate are hinged. Ear plates are respectively arranged at the outer ends of the first arc-shaped plate and the second arc-shaped plate, holes are arranged on the ear plates, first bolts are arranged within the holes, the tail fixing member includes two plates and an elastic band, circular holes are respectively arranged on the two plates, first bolts are arranged within the circular holes, the elastic band is arranged between the two plates, a first bolt is arranged on the middle first flexible plate of the leg fixing member, first straps are respectively arranged on both sides of the flexible plate, a second bolt is arranged on the middle second flexible plate of the side fixing member, and second straps are respectively arranged on both sides of the second flexible plate.

[0012] A preferred solution is that the leg fixing member is adjustably arranged. The leg fixing member includes a transverse plate, a first bolt, an adjusting plate and a first strap. The first bolt is arranged in the middle of the transverse plate, the adjusting plates are respectively arranged on both sides at the upper end of the transverse plate. The adjusting plate has a first plate body and a second plate body. An insertion groove is arranged at the upper end of the first plate body, the second plate body is movably arranged within the insertion groove, first holes are respectively arranged on both sides of the insertion groove, multiple second holes are arranged on the second plate body, and the first holes cooperate with the multiple second holes.

[0013] In a preferred embodiment, a detachable inclined plate is provided at the inner end of the moving plate. A plurality of fixing plates are provided at the inner end of the moving plate, and threaded holes are provided on each of the plurality of fixing plates. A connecting hole is provided at the upper end of the inclined plate, and the threaded holes cooperate with the connecting hole. The inclined plate is further provided with a plurality of second bolt holes.

[0014] The fixing device for medical experiment radiotherapy positioning provided by the present invention includes the following steps;

[0015] Fix the placement plate on the operating table during radiotherapy through fixing bolts, and place the animal (dog or cat) in the middle of the placement plate. When lying on the side, according to the size of the animal, screw the first bolts on the head fixing member, tail fixing member, and tail fixing member into the corresponding first bolt holes respectively, so that the head fixing member, tail fixing member, and tail fixing member are fixed in their respective positions, thereby fixing the head, torso tail, and tail of the animal. According to the position of the legs when the animal lies on its side, select one group of side moving members, move the moving plate within the opening, move the two side fixing members close to the legs of the animal, and then, according to the position of the animal's legs, screw the second bolts on the two side fixing members into the corresponding second bolt holes respectively. Then, the two front legs and the two rear legs of the animal can be fixed respectively through the two side fixing members. When the animal lies face down or face up, screw the first bolts on the head fixing member, tail fixing member, tail fixing member, and four leg fixing members into the corresponding first bolt holes respectively, so that the head fixing member, tail fixing member, tail fixing member, and four leg fixing members are fixed in their respective positions, and fix the head, torso tail, tail, and four legs of the animal when lying face up or face down respectively. Moreover, the flexible cooperation of the head fixing member, tail fixing member, tail fixing member, four leg fixing members, and side fixing members can also well fix the animal when lying obliquely. In this way, it is very convenient to fix animals of different sizes and different positions.

[0016] The fixing device for medical experiment radiotherapy positioning provided by the present invention includes the following steps;

[0017] When the animal lies on its side, according to the direction of the animal's legs, select one group of side moving members. At this time, the operator moves the moving plate, and the two ends of the moving plate move along the transverse groove, and at the same time, the screw rod moves along the transverse hole towards the direction close to the animal's legs. When the moving plate moves to a suitable position, the operator tightens the fastening nut to fix the moving plate in the corresponding position and make it unable to move. Then, the operator makes the two side fixing members fixed in the corresponding positions on the moving plate through the cooperation of the second bolts and the plurality of second bolt holes. Then, the two front legs and the two rear legs of the animal can be fixed respectively through the two side fixing members.

[0018] The fixing device for radiotherapy positioning in medical experiments provided by the present invention includes the following steps;

[0019] Through the holes on the ear plates, the first bolts are screwed into the corresponding first bolt holes from the holes, and the head fixing member and the tail fixing member are fixed at the corresponding positions. Then, the first bolts pass through the circular holes and are screwed into the corresponding first bolt holes, so that the tail fixing member is fixed at the corresponding external position. The first bolts on the first flexible plate of the four leg fixing members are screwed into the corresponding first bolt holes, and the second bolts on the second flexible plate are screwed into the corresponding second bolt holes. At this time, the first arc plate rotates, so that the head and the trunk tail of the animal are respectively located inside the first arc plate and the second arc plate, and the head and the trunk tail of the animal are fixed. The tail of the animal is moved into the lower end of the elastic band, and then the elastic band presses the tail of the animal. The four legs of the animal are fixed by tying them with the straps in the side fixing member or the leg fixing member according to the placement position of the animal.

[0020] The fixing device for radiotherapy positioning in medical experiments provided by the present invention includes the following steps;

[0021] When it is necessary to adjust the height of the side fixing member or the leg fixing member, the operator moves the second plate body in the insertion groove. When the height position of the strap is adjusted, the operator inserts the connecting bolts into the first hole and the corresponding second hole at this time, and screws on the connecting nuts on the connecting bolts, so that the strap is located at the corresponding height position. In this way, according to the placement requirements of the animal's legs, the animal's legs can be fixed at the corresponding height positions, further increasing the practicality.

[0022] The fixing device for radiotherapy positioning in medical experiments provided by the present invention includes the following steps;

[0023] When the animal lies on its side and the legs of the animal are fixed by the side fixing member, since it is necessary to spread the front two legs or the rear two legs apart during radiography, the operator can insert the inclined plate into the threaded hole on the corresponding fixing plate through the threaded rod from the connecting hole at this time, and fix the inclined plate. At this time, the operator can add a side fixing member, and according to the size of the spread of the animal's legs, fix this side fixing member at the corresponding position on the inclined plate through the second bolt. Then, fix the legs that are spread outwards through this side fixing member, making this fixing device more practical and convenient.

[0024] In addition, the fixing device of the present invention preferably uses a structure made of plastic material to reduce interference. For example, the plate body, the screw rod, the clamping arc plate, etc. can all adopt the existing plastic materials. When using a hand-held type of radiotherapy instrument, radiotherapy is performed on a certain local position of the animal. At this time, even if there are metal parts on the fixing device, no interference will be formed. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of a fixing device for radiotherapy positioning in medical experiments according to the present invention;

[0026] Figure 2 is a schematic structural diagram of a part of a fixing device for radiotherapy positioning in medical experiments according to the present invention;

[0027] Figure 3 is a schematic structural diagram of a fixing device for radiotherapy positioning in medical experiments according to the present invention;

[0028] Figure 4 is a schematic structural diagram of a partial cross-sectional view of a fixing device for radiotherapy positioning in medical experiments according to the present invention;

[0029] Figure 5 is a schematic structural diagram of a part of a fixing device for radiotherapy positioning in medical experiments according to the present invention;

[0030] Figure 6 is a schematic structural diagram of a part of a fixing device for radiotherapy positioning in medical experiments according to the present invention.

[0031] In the figure: 5, the first bolt; 10, the placement plate; 11, the opening; 12, the first bolt hole; 20, the head fixing member; 30, the tail fixing member; 40, the tail fixing member; 50, the leg fixing member; 60, the side moving member; 61, the moving plate; 62, the side fixing member; 70, the fastening member; 600, the second bolt; 611, the second bolt hole; 111, the transverse groove; 112, the transverse hole; 71, the screw; 72, the fastening nut; 21, the first arc plate; 22, the second arc plate; 23, the ear plate; 24, the hole; 41, the plate; 42, the elastic band; 43, the circular hole; 51, the first flexible plate; 52, the first strap; 63, the second flexible plate; 64, the second strap; 91, the transverse plate; 92, the adjusting plate; 921, the first plate body; 922, the second plate body; 923, the insertion groove; 924, the first hole; 925, the second hole; 151, the inclined plate; 152, the fixing plate; 153, the threaded hole; 154, the connecting hole. Detailed implementation manners

[0032] The first embodiment:

[0033] As Figure 1 shown, a fixing device for radiotherapy positioning in medical experiments provided by the present invention includes a placement plate 10 and a side moving member 60;

[0034] On both sides of the upper end of the placement plate 10, openings 11 are respectively provided. In the middle of the upper end of the placement plate 10, a plurality of first bolt holes 12 are provided. In the middle of the upper end of the placement plate 10, a head fixing member 20 is provided. In the middle of the lower end of the placement plate 10, a tail fixing member 30 is provided. At the end of the lower end of the placement plate 10, a tail fixing member 40 is provided. At the four corners of the middle of the placement plate 10, leg fixing members 50 are respectively provided. The head fixing member 20, the tail fixing member 30, the tail fixing member 40 and the four leg fixing members 50 are respectively matched with the plurality of first bolt holes 12 through first bolts 5;

[0035] There are two groups of the side moving members 60. The two groups of the side moving members 60 are respectively movably arranged in the two side openings 11. Each of the two groups of the side moving members 60 includes a moving plate 61 and two side fixing members 62. The moving plate 61 is movably arranged in the opening 11. The moving plate 61 is fixed by a fastening member 70. A plurality of second bolt holes 611 are provided at the upper end of the moving plate 61. The two side fixing members 62 are respectively matched with the plurality of second bolt holes 611 through second bolts 600.

[0036] Fix the placement plate 10 on the operating table during radiological diagnosis and treatment through fixing bolts, and place an animal (dog or cat) on the middle part of the placement plate 10. When lying on its side, according to the size of the animal, screw the first bolts 5 on the head fixing member 20, the tail fixing member 30 and the tail fixing member 40 into the corresponding first bolt holes 12 respectively, so that the head fixing member 20, the tail fixing member 30 and the tail fixing member 40 are respectively fixed in the corresponding positions, and fix the head, torso tail and tail of the animal. According to the position of the legs when the animal lies on its side, select one of the two groups of side moving members 60, move the moving plate 61 in the opening 11, and make the two side fixing members 62 close to the legs of the animal. Then, according to the position of the legs of the animal, screw the second bolts 600 on the two side fixing members 62 into the corresponding second bolt holes 611 respectively. Then, the two front legs and the two rear legs of the animal can be respectively fixed through the two side fixing members 62. When the animal lies on its stomach or back, screw the first bolts 5 on the head fixing member 20, the tail fixing member 30, the tail fixing member 40 and the four leg fixing members 50 into the corresponding first bolt holes 12 respectively, so that the head fixing member 20, the tail fixing member 30, the tail fixing member 40 and the four leg fixing members 50 are respectively fixed in the corresponding positions, and fix the head, torso tail, tail and four legs of the animal when it lies on its back or stomach. Moreover, the flexible cooperation and use of the head fixing member 20, the tail fixing member 30, the tail fixing member 40, the four leg fixing members 50 and the side fixing members 62 can also well fix the animal when it lies obliquely. In this way, the fixation of animals of different sizes and different postures can be realized, which is very convenient.

[0037] Second Embodiment:

[0038] As shown in Figure 2 the figure, transverse grooves 111 are respectively arranged at the upper and lower ends inside the opening 11. A transverse hole 112 is arranged at the upper end of the transverse groove 111. Both ends of the moving plate 61 are movably arranged in the transverse grooves 111. There are two fasteners 70, and the two fasteners 70 are respectively arranged at both ends of the moving plate 61. Both of the two fasteners 70 include a screw 71 and a fastening nut 72. The screw 71 is arranged at the end of the moving plate 61. The upper end of the screw 71 passes through the transverse hole 112, and the fastening nut 72 is arranged at the upper end of the screw 71.

[0039] When the animal lies on its side, according to the direction of the animal's legs, one group of side moving members 60 is selected. At this time, the operator moves the moving plate 61, and both ends of the moving plate 61 move along the transverse grooves 111. At the same time, the screw 71 moves along the transverse hole 112 towards the direction close to the animal's legs. When the moving plate 61 moves to a suitable position, the operator tightens the fastening nut 72 to make the moving plate 61 unable to move and fixes it at the corresponding position. Then, the operator makes the two side fixing members 62 fixed at the corresponding positions on the moving plate 61 by matching the second bolts 600 with a plurality of second bolt holes 611. After that, the two front legs and the two rear legs of the animal can be respectively fixed by the two side fixing members 62.

[0040] Third Embodiment:

[0041] As shown in Figure 3 the figure, both the head fixing member 20 and the tail fixing member 30 include a first arc-shaped plate 21 and a second arc-shaped plate 22. The inner ends of the first arc-shaped plate 21 and the second arc-shaped plate 22 are hinged. Ear plates 23 are respectively arranged at the outer ends of the first arc-shaped plate 21 and the second arc-shaped plate 22. A hole 24 is arranged on the ear plate 23, and a first bolt 5 is arranged in the hole 24. The tail fixing member 40 includes two plates 41 and an elastic band 42. Circular holes 43 are respectively arranged on the two plates 41, and a first bolt 5 is arranged in the circular holes 43. The elastic band 42 is arranged between the two plates 41. A first bolt 5 is arranged on the first flexible plate 51 in the middle of the leg fixing member 50. First straps 52 are respectively arranged on both sides of the first flexible plate 51. A second bolt 600 is arranged on the second flexible plate 63 in the middle of the side fixing member 62. Second straps 64 are respectively arranged on both sides of the second flexible plate 63.

[0042] Through the holes 24 on the ear plate 23, the first bolt 5 is screwed into the corresponding first bolt hole 12 from the hole 24, and the head fixing member 20 and the tail fixing member 30 are fixed in the corresponding positions. Then, the first bolt 5 passes through the circular hole 43 and is screwed into the corresponding first bolt hole 12, so that the tail fixing member 40 is fixed in the corresponding position. The first bolt 5 on the flexible plate of the four leg fixing members 50 is screwed into the corresponding first bolt hole 12, and the second bolt 600 on the second flexible plate 63 is screwed into the corresponding second bolt hole 611. At this time, the first arc plate 21 rotates, so that the head and the trunk tail of the animal are respectively located in the first arc plate 21 and the second arc plate 22, and the head and the trunk tail of the animal are fixed. The tail of the animal is moved into the lower end of the elastic band 42, and then the elastic band 42 presses the tail of the animal. The four legs of the animal are fixed according to the placement position of the animal by tying them with the straps in the side fixing member 62 or the leg fixing member 50.

[0043] In addition, the outer ends of the first arc plate 21 and the second arc plate 22 are respectively hinged to the ear plate 23, so that the heads and the trunk tails of animals of different sizes can be better fixed.

[0044] Fourth Embodiment:

[0045] As Figure 4 shown, the leg fixing member 50 is adjustably provided. The leg fixing member 50 includes a transverse plate 91, a first bolt 5, an adjusting plate 92 and a first strap 52. The first bolt 5 is provided in the middle of the transverse plate 91. The adjusting plates 92 are respectively provided on both sides of the upper end of the transverse plate 91. The adjusting plate 92 has a first plate body 921 and a second plate body 922. An insertion groove 923 is provided at the upper end of the first plate body 921. The second plate body 922 is movably provided in the insertion groove 923. First holes 924 are respectively provided on both sides of the insertion groove 923. A plurality of second holes 925 are provided on the second plate body 922. The first holes 924 cooperate with the plurality of second holes 925.

[0046] When it is necessary to adjust the height of the side fixing member 62 or the leg fixing member 50, the operator moves the second plate body 922 in the insertion groove 923. When the height position of the strap is adjusted, the operator inserts a connecting bolt into the first hole 924 and the corresponding second hole 925, and screws a connecting nut on the connecting bolt, so that the strap is located at the corresponding height position. In this way, according to the placement requirements of the animal's legs, the animal's legs can be fixed at the corresponding height positions, further increasing the practicability.

[0047] Fifth Embodiment:

[0048] As Figure 5 and Figure 6As shown, a detachable inclined plate 151 is provided at the inner end of the moving plate 61. A plurality of fixing plates 152 are provided at the inner end of the moving plate 61. Threaded holes 153 are provided on each of the plurality of fixing plates 152. A connecting hole 154 is provided at the upper end of the inclined plate 151. The threaded holes 153 cooperate with the connecting hole 154. The inclined plate 151 is further provided with a plurality of second bolt holes 611.

[0049] When the animal lies on its side and the legs of the animal are fixed by the side fixing member 62, since it is necessary to spread the front two legs or the rear two legs apart during radiography, the operator can insert the inclined plate 151 into the threaded hole 153 on the corresponding fixing plate 152 through the threaded rod from the connecting hole, so as to fix the inclined plate 151. At this time, the operator can add a side fixing member 62 and, according to the size of the spread of the animal's legs, fix this side fixing member 62 at the corresponding position on the inclined plate 151 through the second bolt 600. Then, the outwardly spread legs are fixed by this side fixing member 62, making this fixing device more practical and convenient. The installation angle of the side fixing member 62 on the inclined plate can be rotated as needed, that is, the installation angle is adjusted to achieve a better fitting effect.

[0050] The radiological diagnosis and treatment of the present invention specifically refers to equipment such as X-ray, CT, magnetic resonance imaging (MRI), radionuclide imaging, etc., which can be large-scale equipment or handheld equipment, for experiments on local positions.

Claims

1. A fixing device for positioning in medical experimental radiation diagnosis and treatment, characterized in that: include: A placement plate (10), wherein openings (11) are respectively arranged on both sides of the upper end of the placement plate (10), a plurality of first bolt holes (12) are arranged in the middle of the upper end of the placement plate (10), a head fixing piece (20) is arranged in the middle of the upper end of the placement plate (10), a tail fixing piece (30) is arranged in the middle of the lower end of the placement plate (10), a tail fixing piece (40) is arranged at the lower end of the placement plate (10), and leg fixing pieces (50) are respectively arranged at the four corners of the middle part of the placement plate (10), and the head fixing piece (20), the tail fixing piece (30), the tail fixing piece (40) and the four leg fixing pieces (50) are respectively matched with the plurality of first bolt holes (12) through first bolts (5); The side moving parts (60) include two groups. The two groups of the side moving parts (60) are movably arranged in the openings (11) on both sides. The two groups of the side moving parts (60) each include a moving plate (61) and two side fixing parts (62). The moving plate (61) is movably arranged in the opening (11). The moving plate (61) is fixed by a fastener (70). A plurality of second bolt holes (611) are arranged at the upper end of the moving plate (61). The two side fixing parts (62) are respectively matched with the plurality of second bolt holes (611) by second bolts (600).

2. The fixing device for positioning of medical experimental radiological diagnosis and treatment according to claim 1 is characterized in that the upper and lower ends of the opening (11) are respectively provided with transverse grooves (111), the upper end of the transverse groove (111) is provided with a transverse hole (112), the two ends of the movable plate (61) are respectively movably arranged in the transverse groove (111), the fasteners (70) are provided with two, the two fasteners (70) are respectively arranged on the two ends of the movable plate (61), the two fasteners (70) each include a screw rod (71) and a fastening nut (72), the screw rod (71) is arranged on the end of the movable plate (61), the upper end of the screw rod (71) is arranged to pass through the transverse hole (112), and the fastening nut (72) is arranged at the upper end of the screw rod (71).

3. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 1 is characterized in that: The head fixing member (20) and the tail fixing member (30) both comprise a first arc-shaped plate (21) and a second arc-shaped plate (22), the inner ends of the first arc-shaped plate (21) and the second arc-shaped plate (22) are hingedly connected, the outer ends of the first arc-shaped plate (21) and the second arc-shaped plate (22) are respectively provided with ear plates (23), the ear plates (23) are provided with holes (24), and the holes (24) are provided with first bolts (5), the tail fixing member (40) comprises two plates (41) and an elastic band (42), the two plates ( 41), circular holes (43) are respectively provided on the side fixing member (62), a first bolt (5) is provided in the circular hole (43), the elastic band (42) is provided between the two plates (41), a first bolt (5) is provided on the middle first flexible plate (51) of the leg fixing member (50), first binding straps (52) are respectively provided on both sides of the flexible plate, a second bolt (600) is provided on the middle second flexible plate (63) of the side fixing member (62), and second binding straps (64) are respectively provided on both sides of the second flexible plate (63).

4. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 1 is characterized in that: The leg fixing member (50) is adjustable. The leg fixing member (50) comprises a transverse plate (91), a first bolt (5), an adjustment plate (92) and a first binding strap (52). The first bolt (5) is arranged in the middle of the transverse plate (91). The adjustment plate (92) is arranged on both sides of the upper end of the transverse plate (91). The adjustment plate (92) comprises a first plate body (921) and a second plate body (922). An insertion groove (923) is arranged at the upper end of the first plate body (921). The second plate body (922) is movably arranged in the insertion groove (923). First holes (924) are arranged on both sides of the insertion groove (923). A plurality of second holes (925) are arranged on the second plate body (922). The first hole (924) cooperates with the plurality of second holes (925).

5. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 1, characterized in that: The inner end of the movable plate (61) is provided with a detachable inclined plate (151), and the inner end of the movable plate (61) is provided with a plurality of fixed plates (152), and the plurality of fixed plates (152) are provided with threaded holes (153). The upper end of the inclined plate (151) is provided with a connecting hole (154), and the threaded hole (153) cooperates with the connecting hole (154). The inclined plate (151) is also provided with a plurality of second bolt holes (611).

6. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 1 is characterized in that , including the following steps; The placement plate (10) is fixed on the operating table during radiological diagnosis and treatment by fixing bolts, and the animal (dog or cat) is placed on the middle part of the placement plate (10). When the animal lies on its side, the first bolts (5) on the head fixing member (20), the tail fixing member (30) and the tail fixing member (40) are screwed into the corresponding first bolt holes (12) according to the size of the animal, so that the head fixing member (20), the tail fixing member (30) and the tail fixing member (40) are fixed in corresponding positions respectively, and the head, trunk tail and tail of the animal are fixed. According to the position of the legs of the animal lying on its side, one of the side moving members (60) is selected to move the moving plate (61) in the opening (11), and the two side fixing members (62) are close to the legs of the animal. Then, according to the position of the legs of the animal, the second bolts (600) on the two side fixing members (62) are screwed into the corresponding second bolt holes (611) respectively, and then the animal can be moved. The two front legs and the two rear legs of the animal are fixed respectively by two side fixing members (62). When the animal lies prone or supine, the first bolts (5) on the head fixing member (20), the tail fixing member (30), the tail fixing member (40) and the four leg fixing members (50) are screwed into the corresponding first bolt holes (12) respectively, so that the head fixing member (20), the tail fixing member (30), the tail fixing member (40) and the four leg fixing members (50) are fixed at corresponding positions respectively, and the head, the tail of the trunk, the tail and the four legs of the animal are fixed respectively when the animal lies supine or prone. Moreover, the head fixing member (20), the tail fixing member (30), the tail fixing member (40) and the four leg fixing members (50) and the side fixing members (62) are flexibly used in combination, and the animal can be well fixed when lying obliquely. In this way, animals of different sizes and different positions can be fixed, which is very convenient.

7. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 2 is characterized in that , including the following steps; When the animal lies on its side, one of the side moving members (60) is selected according to the direction of the animal's legs. At this time, the personnel moves the moving plate (61), and the two ends of the moving plate (61) move along the transverse groove (111) and move toward the animal's legs. When the moving plate (61) moves to a suitable position, the personnel tightens the fastening nut (72) to fix the moving plate (61) at the corresponding position without being able to move. Then, the personnel use the second bolt (600) to cooperate with the plurality of second bolt holes (611) to fix the two side fixing members (62) at the corresponding positions on the moving plate (61). Then, the two front legs and the two rear legs of the animal can be fixed respectively by the two side fixing members (62).

8. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 3 is characterized in that , including the following steps; The first bolt (5) is screwed into the corresponding first bolt hole (12) through the hole (24) on the ear plate (23), and the head fixing member (20) and the tail fixing member (30) are fixed at corresponding positions. Then, the first bolt (5) is screwed into the corresponding first bolt hole (12) through the circular hole (43), and the tail fixing member (40) is fixed to the corresponding external part. The first bolts (5) on the flexible plates of the four leg fixing members (50) are screwed into the corresponding first bolt holes (12), and the second flexible plates are screwed into the corresponding first bolt holes (12). The second bolt on the sex plate (63) is screwed into the corresponding second bolt hole (611), and the first arc plate (21) is rotated so that the head and the tail of the trunk of the animal are located in the first arc plate (21) and the second arc plate (22) respectively, and the head and the tail of the trunk of the animal are fixed so that the tail of the animal moves into the lower end of the elastic band (42), and then the tail of the animal is pressed by the elastic band (42), and the four legs of the animal are fixed by the straps in the side fixing member (62) or the leg fixing member (50) according to the placement of the animal.

9. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 4 is characterized in that , including the following steps; When it is necessary to adjust the height of the side fixing member (62) or the leg fixing member (50), the personnel moves the second plate (922) in the insertion groove (923). After adjusting the height position of the strap, the personnel inserts the connecting bolts into the first hole (924) and the corresponding second hole (925), and screws the connecting nuts on the connecting bolts, so that the strap is located at the corresponding height position. In this way, the animal's legs can be fixed at the corresponding height position according to the placement requirements of the animal's legs, further increasing practicality.

10. The fixing device for positioning in medical experimental radiation diagnosis and treatment according to claim 5, characterized in that , including the following steps; When the animal lies on its side and the animal's legs are fixed by the side fixing member (62), since the two front legs or the two rear legs need to be spread apart when taking an X-ray, the personnel can insert the inclined plate (151) from the connecting hole into the threaded hole (153) on the corresponding fixing plate (152) through the threaded rod to fix the inclined plate (151). At this time, the personnel can add a side fixing member (62) and fix the side fixing member (62) to the corresponding position on the inclined plate (151) by the second bolt (600) according to the size of the animal's spread legs. Then, the outwardly spread legs are fixed by the side fixing member (62), making the fixing device more practical and convenient.

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