CT scanning device based on different end positions of ankles

Abstract

The utility model relates to the technical field of medical instruments, in particular to a CT (Computed Tomography) scanning device based on different end positions of ankles, which comprises a frame body arranged on a CT examination bed, the frame body is positioned at one end of the CT examination bed close to a CT scanner, and the frame body comprises a bottom plate, a side plate, a pedal, a first fixing pin and a second fixing pin, the number of the side plates is two, the two side plates are located on the two sides of the bottom plate, a plurality of fixing holes are formed in the two sides of the pedal in a concave mode respectively, the side plates are provided with first side holes and second side holes in a penetrating mode, the first fixing pins are embedded into the corresponding fixing holes through the different first side holes, and the second fixing pins are embedded into the corresponding fixing holes through the different second side holes. The second fixing pins are embedded into the corresponding fixing holes through the different second side holes. According to the utility model, CT data acquisition at different end positions is realized, and pathological movement and anatomical abnormality of the ankle part can be judged from a dynamic level.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a CT scanning device based on different terminal positions of the foot and ankle in the body. Background Art

[0002] At present, according to statistics from the Foot and Ankle Surgery Association, 70% of people will encounter foot and ankle problems in their lifetime, and the statistics in my country are about 50% to 60%. The main reason is that each of our feet has 26 bones, 33 joints, and more than 100 muscles and ligaments, that is, our feet have a very complex structure. Foot and ankle diseases often have anatomical or physiological movement abnormalities at the three-dimensional level. Currently, two-dimensional X-rays are often used to evaluate the foot and ankle. Three-dimensional CT can only reflect anatomical abnormalities in a static state, and cannot reflect the pathological relative movement or position changes of the foot and ankle during the entire gait dynamic process. CT scans of different terminal positions of the foot and ankle can reveal this relationship. However, during the CT scan, it is difficult for patients to maintain the correct terminal position of the foot and ankle, so CT data cannot be effectively collected and the patient's foot and ankle cannot be accurately evaluated. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a CT scanning device based on different terminal positions of the foot and ankle in the body, which realizes CT data collection at different terminal positions, and is conducive to judging pathological movements and anatomical abnormalities of the foot and ankle from a dynamic level.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A CT scanning device based on different terminal positions of the ankle in the body, comprising a frame arranged on a CT examination bed, and the frame is located at one end of the CT examination bed close to the CT scanner, the frame comprises a bottom plate, a side plate and a pedal, a first fixing pin and a second fixing pin, two side plates are provided, the two side plates are located on both sides of the bottom plate, and one end of the side plate is fixedly connected to the side surface of the bottom plate, so that a fixing portion is formed between the two side plates and the bottom plate;

[0006] The pedal is located in the fixing portion, and a plurality of fixing holes are respectively recessed on both sides of the pedal, a plurality of first side holes and a plurality of second side holes are penetrated by the side plate, the first fixing pins are embedded in the corresponding fixing holes through different first side holes, and the second fixing pins are embedded in the corresponding fixing holes through different second side holes, so that the position of the pedal in the fixing portion can be adjusted so that the ankle has different terminal positions.

[0007] Furthermore, each side of the pedal is provided with three fixing holes;

[0008] Each of the side plates is provided with two rows of the first side holes, and each row of the first side holes is provided with three;

[0009] The second side hole is located at one end of the side plate close to the bottom plate, nine second side holes are provided, and the second side holes are arranged to form an arc shape.

[0010] Furthermore, each of the side plates is provided with a first fixing pin and a second fixing pin, and the first fixing pin and the second fixing pin are respectively threadedly inserted into the first side hole and the second side hole and then slidably embedded into the corresponding fixing holes.

[0011] Furthermore, an adjustment plate is provided on the surface of the pedal, one end of the adjustment plate is rotatably connected to the pedal, and the other end of the adjustment plate is concavely provided with an adjustment hole;

[0012] The pedal is penetrated by a plurality of arc-shaped positioning holes, and is also provided with a third fixing pin. The third fixing pin is threadedly passed through any of the positioning holes and then slidably embedded in the adjustment hole, so as to adjust the angle of the adjustment plate on the pedal so that the foot is in an inward or outward rotation position.

[0013] Furthermore, there are five positioning holes.

[0014] Furthermore, a non-slip rubber layer is provided on a side of the bottom plate facing away from the fixing portion.

[0015] Furthermore, one of the side panels is provided with a first fixing belt, and the other side panel is provided with a second fixing belt. The first fixing belt and the second fixing belt are passed around the back of the CT examination bed and adhered to each other by Velcro.

[0016] The beneficial effects of the utility model are:

[0017] The pedal is set in the fixing part, and the angle of the pedal is adjusted according to the required terminal position of the foot and ankle, and the fixing holes are aligned with the corresponding first side hole and the second side hole respectively, and the first fixing pin is embedded in the corresponding fixing hole through the corresponding first side hole, and the second fixing pin is embedded in the corresponding fixing hole through the corresponding second side hole, so that the pedal is fixed between the two side plates, so that the patient's foot and ankle are fixed and CT description is performed; by adjusting the angle of the pedal and fixing it with the first fixing pin and the second fixing pin, the patient's foot is passively fixed on the pedal in the position of inversion, eversion, plantar flexion or dorsiflexion; by adjusting the angle of the adjustment plate, the patient's foot is passively fixed on the adjustment plate in the position of internal rotation and external rotation, and the fixation of different terminal positions of the foot and ankle is realized, and then CT scanning is performed at this position, so as to realize CT data collection at different terminal positions, which is conducive to judging pathological movements and anatomical abnormalities of the foot and ankle from a dynamic level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the frame structure of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0020] Figure 3 It is a schematic diagram of the side plate structure of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0021] Figure 4 It is a schematic diagram of the pedal structure of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0022] Figure 5 It is a schematic diagram of the structure of an adjustment plate of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0023] Figure 6 It is a schematic diagram of the use of a foot and ankle fixation device for CT scanning according to a preferred embodiment of the utility model.

[0024] In the figure, 1-CT examination bed, 2-frame, 21-bottom plate, 22-side plate, 221-first side hole, 222-second side hole, 23-pedal, 231-fixing hole, 232-positioning hole, 241-first fixing pin, 242-second fixing pin, 243-third latch, 3-CT scanner, 4-adjustment plate, 41-adjustment hole, 51-first fixing belt, 52-second fixing belt, 53-Velcro, 54-Japanese buckle. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Please also see Figures 1 to 6 A preferred embodiment of the foot and ankle fixation device for CT scanning of the utility model includes a frame 2 arranged on a CT examination bed 1, and the frame 2 is located at one end of the CT examination bed 1 close to a CT scanner 3.

[0028] The frame 2 includes a bottom plate 21, side plates 22, a pedal 23, a first fixing pin 241 and a second fixing pin 242. Two side plates 22 are provided. The two side plates 22 are located on both sides of the bottom plate 21, and one end of the side plate 22 is fixedly connected to the side surface of the bottom plate 21 to form a fixing portion between the two side plates 22 and the bottom plate 21.

[0029] The pedal 23 is located in the fixed part, and a plurality of fixing holes 231 are respectively recessed on both sides of the pedal 23. A plurality of first side holes 221 and a plurality of second side holes 222 are penetrated by the side plate 22. The first fixing pin 241 is embedded in the corresponding fixing hole 231 through different first side holes 221, and the second fixing pin 242 is embedded in the corresponding fixing hole 231 through different second side holes 222. The position of the pedal 23 in the fixed part can be adjusted so that the ankle has different terminal positions.

[0030] like Figure 2 and Figure 3 As shown, each side of the pedal 23 is provided with three fixing holes 231;

[0031] Each side plate 22 is provided with two rows of first side holes 221, and each row of first side holes 221 is provided with three;

[0032] The second side hole 222 is located at one end of the side plate 22 close to the bottom plate 21 . Nine second side holes 222 are provided and arranged in an arc shape.

[0033] Each side plate 22 has a first fixing pin 241 and a second fixing pin 242 . The first fixing pin 241 and the second fixing pin 242 are respectively threadedly inserted into the first side hole 221 and the second side hole 222 and then slidably inserted into the corresponding fixing hole 231 .

[0034] In this embodiment, the three fixing holes 231 correspond to the first side hole 221 of the first row, the first side hole 221 of the second row, and the second side hole 222, respectively. The first fixing pin 241 is selectively installed in the first side hole 221 of the first row or the first side hole 221 of the second row according to the requirements, and the second fixing pin 242 is installed in the second side hole 222. Through the mutual cooperation among the fixing holes 231, the first side hole 221, the first side hole 221, the second side hole 222, the first fixing pin 241, and the second fixing pin 242, the pedal 23 can be made to have different specific angles, so that the patient's foot can be passively fixed on the pedal 23 in the position of inversion, eversion, plantar flexion, and dorsiflexion.

[0035] like Figure 3 and Figure 4 As shown, the pedal 23 is provided with an adjustment plate 4, one end of which is rotatably connected to the pedal 23, and the other end is concavely provided with an adjustment hole 41. The adjustment plate 4 of this embodiment is rotatably connected to the pedal 23 via a connecting shaft, and the connecting shaft is made of plastic.

[0036] The pedal 23 is provided with a plurality of arc-shaped positioning holes 232, and the pedal 23 is also provided with a third fixing pin 243. The third fixing pin 243 is threadedly inserted into any positioning hole 232 and then slidably embedded in the adjustment hole 41, so as to adjust the angle of the adjustment plate 4 on the pedal 23 so that the foot is in an inward or outward rotation position. In this embodiment, there are five positioning holes 232.

[0037] By adjusting the angle of the adjustment plate 4, the adjustment hole 41 is aligned with the required positioning hole 232. The third fixing pin 243 is threaded through the positioning hole 232 and then slidably embedded in the adjustment hole 41, thereby fixing the adjustment plate 4 at the current position and passively fixing the patient's foot on the adjustment plate 4 in an internally rotated or externally rotated position.

[0038] The angle adjustment of the pedal 23 is used to passively fix the foot in the position of inversion, eversion and plantar flexion and dorsiextension, and the angle adjustment of the adjustment plate 4 is used to passively fix the foot in the position of internal rotation or external rotation, ultimately achieving the fixation of different terminal positions of the foot and ankle, and then performing CT scanning at this position, thereby realizing CT data acquisition at different terminal positions.

[0039] Preferably, a non-slip rubber layer is provided on a side of the bottom plate 21 facing away from the fixing portion.

[0040] like Figure 1As shown, one side plate 22 is provided with a first fixing belt 51, and the other side plate 22 is provided with a second fixing belt 52. The first fixing belt 51 and the second fixing belt 52 are passed around the back of the CT examination bed 1 and adhered to each other through a Velcro 53. In this embodiment, one end of the first fixing belt 51 is fixedly connected to one side plate 22, and the other end is provided with a Japanese buckle 54. One end of the second fixing belt 52 is fixedly connected to the other side plate 22, and the other end passes through the Japanese buckle 54 and adheres to itself through the Velcro 53, so that the frame 2 can be fixed on the CT examination bed 1.

[0041] In this embodiment, all components in the frame 2 are made of non-metallic materials, such as wooden boards or plastic boards. The first fixing pin 241, the second fixing pin 242 and the third fixing pin 243 are made of plastic materials. One end of the first fixing pin 241, the second fixing pin 242 and the third fixing pin 243 is provided with a screw handle. The end of the first fixing pin 241, the second fixing pin 242 and the third fixing pin 243 close to the screw handle is provided with a thread, and the other end has a smooth surface.

[0042] In this embodiment, the apertures of the first side hole 221 and the second side hole 222 are slightly smaller than the aperture of the fixing hole 231, and the diameters of the first fixing pin 241 and the second fixing pin 242 are smaller than the aperture of the fixing hole 231. At the same time, the width of the pedal 23 is slightly smaller than the width of the fixing portion, so that the pedal 23 can rotate to a certain angle, and the first fixing pin 241 and the second fixing pin 242 can be embedded in the corresponding fixing hole 231, so as to realize the passive fixation of the patient's foot on the pedal 23 in the position of inversion, eversion and plantar flexion and dorsiextension.

[0043] In this embodiment, the angle of the pedal 23 is adjusted, and the fixing hole 231 is aligned with the corresponding first side hole 221 and the second side hole 222, respectively. The first fixing pin 241 is inserted into the corresponding fixing hole 231 through the corresponding first side hole 221, and the second fixing pin 242 is inserted into the corresponding fixing hole 231 through the corresponding second side hole 222, so that the patient's foot is passively fixed on the adjustment plate 4 in the position of inversion, eversion and plantar flexion and dorsiextension. At the same time, by adjusting the angle of the adjustment plate 4, the adjustment hole 41 is aligned with the required positioning hole 232, and the third fixing pin 243 is threaded through the positioning hole 232 and then slidably inserted into the adjustment hole 41, and the patient's foot is passively fixed on the adjustment plate 4 in the position of internal rotation or external rotation, and finally the fixation of different terminal positions of the foot and ankle is realized, and then CT scanning is performed at this position, so as to realize CT data collection at different terminal positions.

[0044] By adjusting the pedal 23 and the adjustment plate 4, the foot and ankle can be fixed at different terminal positions, such as Figure 6 As shown, a is dorsiflexion, b is plantar flexion, c is inversion, d is eversion, e is internal rotation, and f is external rotation.

Claims

1. A CT scanning device based on different terminal positions of the foot and ankle, characterized in that: The invention comprises a frame (2) arranged on a CT examination bed (1), wherein the frame (2) is located at one end of the CT examination bed (1) close to a CT scanner (3), wherein the frame (2) comprises a bottom plate (21), a side plate (22), a pedal (23), a first fixing pin (241) and a second fixing pin (242), wherein two side plates (22) are provided, and the two side plates (22) are located on both sides of the bottom plate (21), and one end of the side plate (22) is fixedly connected to the side surface of the bottom plate (21), so that a fixing portion is formed between the two side plates (22) and the bottom plate (21); The pedal (23) is located in the fixing portion, and a plurality of fixing holes (231) are respectively recessed on both sides of the pedal (23); a plurality of first side holes (221) and a plurality of second side holes (222) are penetrated through the side plate (22); the first fixing pin (241) is embedded in the corresponding fixing hole (231) through different first side holes (221); the second fixing pin (242) is embedded in the corresponding fixing hole (231) through different second side holes (222); the position of the pedal (23) in the fixing portion can be adjusted so that the ankle has different terminal positions.

2. A CT scanning device based on different terminal positions of the foot and ankle according to claim 1, characterized in that: Each side of the pedal (23) is respectively provided with three fixing holes (231); Each of the side plates (22) is provided with two rows of the first side holes (221), and each row of the first side holes (221) is provided with three; The second side hole (222) is located at one end of the side plate (22) close to the bottom plate (21), nine second side holes (222) are provided, and the second side holes (222) are arranged to form an arc shape.

3. A CT scanning device based on different terminal positions of the foot and ankle according to claim 2, characterized in that: Each of the side plates (22) is provided with a first fixing pin (241) and a second fixing pin (242). The first fixing pin (241) and the second fixing pin (242) are respectively threadedly inserted into the first side hole (221) and the second side hole (222) and then slidably embedded into the corresponding fixing hole (231).

4. A CT scanning device based on different terminal positions of the foot and ankle according to claim 1, characterized in that: An adjustment plate (4) is provided on the surface of the pedal (23), one end of the adjustment plate (4) is rotatably connected to the pedal (23), and the other end is concavely provided with an adjustment hole (41); The pedal (23) is provided with a plurality of arc-shaped positioning holes (232), and the pedal (23) is also provided with a third fixing pin (243). The third fixing pin (243) is threadedly inserted into any of the positioning holes (232) and then slidably embedded in the adjustment hole (41), so as to adjust the angle of the adjustment plate (4) on the pedal (23) so that the foot is in an inward or outward rotation position.

5. A CT scanning device based on different terminal positions of the foot and ankle according to claim 4, characterized in that: There are five positioning holes (232).

6. A CT scanning device based on different terminal positions of the foot and ankle according to claim 1, characterized in that: A non-slip rubber layer is provided on a side of the bottom plate (21) facing away from the fixing portion.

7. A CT scanning device based on different terminal positions of the foot and ankle according to claim 1, characterized in that: One of the side panels (22) is provided with a first fixing belt (51), and the other side panel (22) is provided with a second fixing belt (52); the first fixing belt (51) and the second fixing belt (52) are passed around the back of the CT examination bed (1) and are adhered to each other via a Velcro (53).

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