Load-bearing position simulation device and CT system thereof

Abstract

The utility model discloses a load-bearing position simulation device and a CT (Computed Tomography) system thereof. The load-bearing position simulation device comprises a fixed frame; the first adjusting assembly comprises an adjusting part arranged on the fixing frame and a pressing and pushing part which is driven by the adjusting part to press and push the human body in the pressing and pushing direction; the first detection assembly is fixed to the fixing frame and used for measuring the pushing force of the first part of the human body in the pressing and pushing direction; the second detection assembly is movably arranged on the fixing frame in the pressing and pushing direction and used for measuring the pushing force of the second part of the human body in the pressing and pushing direction. According to the weight-bearing position simulation device and the CT system thereof provided by the embodiment of the invention, the weight-bearing position of a human body can be accurately simulated through the adjustable adjusting assembly and the detection assembly.

Description

Technical Field

[0001] This disclosure generally relates to the technical field of medical devices. More specifically, this disclosure relates to a weight-bearing position simulation device and its CT system. Background Art

[0002] When performing image detection on the human skeleton, it is often necessary to detect the specific states of various parts of the person to be detected under natural gravity. For example, the standing weight-bearing CT image is one of the golden standards for imaging of the spine, lower limb joints, and orthopedic surgeries for correction of lower limb deformities. However, the standing weight-bearing CT system is too expensive. Therefore, the existing alternative is to let the person to be detected lie horizontally on their back and use a horizontally arranged pushing mechanism to push the person to be detected to simulate the physiological weight-bearing state when standing. However, the existing alternative only uses a simple pushing force for simulation and cannot accurately simulate the natural physiological weight-bearing state of the human body, especially that of orthopedic patients. Such patients may be those with various congenital or acquired skeletal deformities, such as uneven shoulders and unequal leg lengths. At the same time, even for some patients without obvious skeletal deformities, due to individual habitual differences in standing postures, the standing center of gravity of the patients will still shift. And because the above reasons are extremely common and unavoidable in the actual diagnosis process, traditional devices will cause great detection errors when not specifically designed for the above situations.

[0003] In view of this, there is an urgent need to provide a weight-bearing position simulation device and its CT system solution to improve the simulation effect of weight-bearing position detection. Summary of the Utility Model

[0004] To at least solve one or more of the above-mentioned technical problems, this disclosure proposes a weight-bearing position simulation device and its CT system in multiple aspects.

[0005] In a first aspect, this disclosure provides a weight-bearing position simulation device, including: a fixing frame; a first adjustment component, which includes an adjustment part arranged on the fixing frame and a pushing part driven by the adjustment part to push the human body along the pushing direction; a first detection component, which is fixed to the fixing frame and is used to measure the pushing force of the first part of the human body along the pushing direction; a second detection component, which is movably arranged on the fixing frame along the pushing direction and is used to measure the pushing force of the second part of the human body along the pushing direction.

[0006] In some embodiments, the pushing part includes a shoulder pressing block for pushing the shoulders of the human body.

[0007] In some embodiments, the first adjustment component includes a bearing part for bearing the human body, and the shoulder pressing block is fixed to the bearing part.

[0008] In some embodiments, the bearing part includes a bed board for the human body to lie flat.

[0009] In some embodiments, the first adjustment component includes a lateral adjustment portion, and the pressing member is adjustably mounted on the lateral adjustment portion in the lateral direction.

[0010] In some embodiments, a detection lead screw is further included, which is threadedly connected to the fixed frame. The second detection component is fixedly connected to the end seat of the detection lead screw. One end of the detection lead screw is axially limited with the end seat of the detection lead screw, and the detection lead screw is used to rotationally drive the end seat of the detection lead screw to move in the pressing direction.

[0011] In some embodiments, the fixed frame includes a frame body and a guide rail fixed to the frame body, and the pressing member is fixedly connected to at least one slider on the guide rail.

[0012] In some embodiments, a leg support plate is further included. A support guide rail is fixedly provided on the frame body, and the leg support plate is fixedly connected to at least one support slider on the support guide rail.

[0013] In some embodiments, the first detection component and the second detection component are respectively connected to the fixed frame through hinges, so that the first detection component and the second detection component can tilt and move relative to the vertical direction.

[0014] In some embodiments, the pressing member includes a pressing block for pressing the human hip and / or knee.

[0015] In some embodiments, the adjustment member includes an adjustment lead screw threadedly connected to the fixed frame. One end of the adjustment lead screw is axially limited with at least one end seat of the adjustment lead screw, and the pressing member is fixedly connected to the end seat of the adjustment lead screw. The adjustment lead screw is used to rotationally drive the end seat of the adjustment lead screw to move in the pressing direction.

[0016] In a second aspect, the present disclosure provides a CT system, including a weight-bearing position simulation device according to the first aspect and multiple embodiments of the present disclosure.

[0017] Through the weight-bearing position simulation device and its CT system provided as above, the embodiments of the present disclosure can accurately simulate the human weight-bearing position through adjustable adjustment components and detection components. Further, in some embodiments, by providing a shoulder pressing block, a pushing force can be conveniently applied to the human body along the direction of the human spine. Furthermore, in some embodiments, by providing a lateral adjustment portion, the position of the pressing member can be adjusted according to the actual body type of the person to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1A three-dimensional schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure is shown;

[0020] Figure 2 A three-dimensional schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure is shown;

[0021] Figure 3 A three-dimensional schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure is shown;

[0022] Figure 4 A schematic diagram of a CT system according to some embodiments of the present disclosure is shown;

[0023] Figure 5 A three-dimensional schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure is shown;

[0024] Figure 6 A partial schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure is shown. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present disclosure.

[0026] It should be understood that the terms "including" and "comprising" used in the specification and claims of the present disclosure indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations.

[0027] It should also be understood that the terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. As used in the specification and claims of the present disclosure, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should be further understood that the term " / and / " used in the specification and claims of the present disclosure refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.

[0028] As used in this specification and the claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting". Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be construed, depending on the context, to mean "once determined" or "in response to determining" or "once [described condition or event] is detected" or "in response to detecting [described condition or event]".

[0029] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0030] Figure 1 A perspective schematic view of a load-bearing position simulation device according to some embodiments of the present disclosure is shown. The load-bearing position simulation device 100 of this embodiment may include a fixed frame 10. One end of the fixed frame 10 is provided with a first adjustment component 20, and the other end is provided with a first detection component 50 and a second detection component 30. Among them, the first adjustment component 20 may include an adjustment member and a pressing member. The adjustment member is disposed at one end of the fixed frame 10, and the pressing member is drivingly connected to the adjustment member for pressing a human body along a pressing direction by the adjustment member. The first detection component 50 and the second detection component 30 may include measuring devices such as a dynamometer for measuring the thrust on a human body part relative to the pressing direction. Among them, the first detection component 50 may be fixed to the fixed frame 10, and the second detection component 30 may move relative to the fixed frame 10 so as to adaptively adjust the force received by its corresponding human body part.

[0031] In the present disclosure, for convenience of description and easy understanding, as Figure 1 shown, the direction in which the load-bearing position simulation device presses or releases relative to the human body is defined as the longitudinal direction as a whole, and the direction perpendicular to the longitudinal direction on the plane where the device contacts the human body is the transverse direction of the device.

[0032] Also refer to Figure 2 , Figure 2A three-dimensional schematic diagram of a load-bearing position simulation device showing some embodiments of the present disclosure is presented. In this embodiment, the fixed frame 10 may include a frame body formed in a substantially rectangular frame shape, where the frame body includes a pressing and fixing portion 11 and a measuring and fixing portion 15 arranged along the transverse direction, and two longitudinal beams 12 extending along the longitudinal direction. The pressing and fixing portion 11 and the measuring and fixing portion 15 are arranged longitudinally at the first end and the second end of the fixed frame 10. The adjusting member may include an adjusting screw rod 21 arranged on the pressing and fixing portion 11, which is threadedly connected to the pressing and fixing portion 11 and extends longitudinally through the pressing and fixing portion 11. The pressing member may include a bearing member 25 that can move longitudinally relative to the two longitudinal beams 12, and a pressing block 23 fixedly arranged on the upper side of the bearing member 25 for directly contacting the human body. An adjusting screw rod end seat 22 is arranged on the lower side of the bearing member 25, and the adjusting screw rod end seat 22 is used to axially limit the adjusting screw rod 21. Thus, by rotating the adjusting screw rod 21, the pressing member can be driven to reciprocate longitudinally by means of the adjusting screw rod end seat 22, so that the pressing block 23 presses the human body along the pressing direction. A rotating handle may be fixedly arranged on the adjusting screw rod 21 to facilitate the rotation of the adjusting screw rod 21.

[0033] In this embodiment, load-bearing slide rails 13 are fixedly arranged on the portions of the two longitudinal beams 12 facing the vertical upper side, and load-bearing sliders 43 that are in shape fit with the load-bearing slide rails 13 are fixedly arranged at the bottom of the bearing member 25. Thus, the bearing member 25 can slide longitudinally relative to the fixed frame 10 by means of the cooperation between the load-bearing sliders 43 and the load-bearing slide rails 13. The two longitudinal beams 12 are respectively arranged on the transverse two sides of the load-bearing simulation device, and one load-bearing slide rail 13 is arranged on each longitudinal beam 12. Two groups of load-bearing sliders 43 are arranged on the bearing member 25 corresponding to the longitudinal beams 12 on the transverse two sides, and the number of each group of load-bearing sliders 43 may include two or more. The longitudinal beam 12 may be arranged as a columnar shape with a substantially square cross-section. In this embodiment, the longitudinal beam 12 is made of a square profile. The load-bearing slide rail 13 may be arranged as a long strip-shaped plate, which includes a plurality of mounting countersunk holes penetrating the plate surface, so that the load-bearing slide rail 13 can be fixedly installed on the upper surface of the longitudinal beam 12 by means of bolts. In this embodiment, a total of four load-bearing slide rails 13 are arranged, that is, one load-bearing slide rail 13 is provided corresponding to each load-bearing slider 43, so that the load-bearing slider 43 can reciprocate within a predetermined stroke range along the load-bearing slide rail 13. Those skilled in the art can understand that a longer load-bearing slide rail may also be arranged to guide multiple load-bearing sliders, or a guiding portion may be formed on the longitudinal beam to directly fit the shape of the load-bearing slider, or other guiding devices may be arranged, such as a combination of a guiding column and a guiding sleeve, etc. The present disclosure does not limit this here.

[0034] The pressing and fixing part 11 of the fixing frame 10 can be set to be substantially plate-shaped, and the measuring and fixing part 15 of the fixing frame 10 includes a fixing beam 18 and an adjusting frame. The fixing beam 18 is arranged transversely, one end of which is fixedly connected to a longitudinal beam 12 of the fixing frame 10, and the other end is fixedly connected to a connecting beam 19 of the adjusting frame. The adjusting frame includes a connecting beam 19 extending longitudinally and a first support beam 16 and a second support beam 17 extending transversely and fixedly connected to the connecting beam 19. The first support beam 16 and the second support beam 17 are arranged at intervals, the first support beam 16 is close to the first end of the fixing frame 10, and the second support beam 17 is close to the second end of the fixing frame 10.

[0035] The bearing member 25 may include a bed board for bearing the human back, on which a person can lie supine. The bed board includes a plurality of long grooves 251 penetrating its plate surface, which are used to reduce the overall weight of the bearing member 25 and can improve the comfort of the user when lying on it. The pressing block 23 may include a main body and a positioning groove 231 formed by the main body recessing longitudinally, which is used to position the shoulders of the human body. The pressing block 23 may further include a quick-lock portion 230 extending downward from the main body. The quick-lock portion 230 includes a locking tongue 232 and an elastic buckle 233 extending obliquely upward from the lower end of the locking tongue 232. The bed board of the bearing member 25 may include a plurality of pressing block mounting openings, and the plurality of pressing block mounting openings together form a lateral adjustment portion 252. The locking tongue 232 and the elastic buckle 233 of the pressing block 23 can extend into the pressing block mounting opening. During the insertion process, the elastic buckle 233 is elastically deformed by the pressing block mounting opening. After being completely inserted, the elastic buckle 233 elastically returns, and its upper end abuts against the lower surface of the bearing member 25, thereby locking the pressing block 23 to the pressing block mounting opening. When disassembling, only need to press the elastic buckle 233 to take out the pressing block 23. In this embodiment, two quick-lock portions 230 are provided on each pressing block 23, which respectively correspond to two pressing block mounting openings on the bearing member 25. And the elastic buckles 233 of the two quick-lock portions 230 pop out in opposite directions, ensuring that the quick-lock portion 230 can also maintain the lock when shaking. A plurality of pressing block mounting openings are arranged at intervals transversely on the bearing member 25, so that the user can adjust the position of the pressing block 23 according to the width of the human shoulder width or replace different-shaped pressing blocks 23 to adapt to different human physiques. Those skilled in the art can understand that the number and shape of the quick-lock portion 230 and the number and shape of the pressing block mounting openings can have other variations, and this disclosure does not limit them here.

[0036] See Figure 3 , Figure 3A three-dimensional schematic diagram of a load-bearing position simulation device according to some embodiments of the present disclosure is shown. The first detection assembly 50 may include a dynamometer fixedly installed on the measurement fixing part 15 for measuring the human body's thrust force. In this embodiment, the first detection assembly 50 is fixed on the fixed beam 18 of the measurement fixing part 15, and the force-measuring surface for measuring the thrust force is arranged towards the first end of the fixed frame 10 for aligning one of the human body's two feet for thrust force measurement. The second detection assembly 30 may include a dynamometer, and a detection adjustment component is connected to the second detection assembly 30 to drive the second detection assembly 30 to move longitudinally. The detection adjustment component includes a detection lead screw 31 and a detection slide table driven by the detection lead screw 31. The detection slide table includes a slide table plate 35 arranged parallel to the fixed frame 10 and two groups of sliders arranged on the vertical lower side of the slide table plate 35. The two groups of sliders are respectively in shape fit with the detection guide rails fixedly arranged on the connecting beam 19 and the longitudinal beam 12 of the fixed frame 10. A lead screw nut 37 corresponding to the detection lead screw 31 is fixedly arranged on the upper side of the second support beam 17. The detection lead screw 31 is threadedly connected to the lead screw nut 37 longitudinally and passes through the lead screw nut 37. The end of the detection lead screw 31 and the detection lead screw end seat 34 fixed on the detection slide table are mutually limited in the longitudinal direction. The dynamometer is fixedly arranged on the detection slide table, and the force-measuring surface for measuring the thrust force is arranged towards the first end of the fixed frame 10 for aligning the other of the human body's two feet for thrust force measurement. An operation handle is arranged at the end of the detection lead screw 31 longitudinally departing from the fixed frame 10 to facilitate the rotation of the lead screw.

[0037] In this embodiment, a support part for supporting the patient's legs is further arranged on the fixed frame 10. The support part includes a leg support plate 46 arranged parallel to the fixed frame 10, and a support slider 47 is arranged on the vertical lower side of the leg support plate 46. The support slider 47 is in shape fit with the support guide rails 14 fixed on the two side longitudinal beams 12 of the fixed frame 10 to guide the leg support plate 46 longitudinally. The leg support plate 46 may be, for example, a substantially rectangular flat plate, and an avoidance groove penetrating in the vertical direction may be arranged thereon to reduce the weight of the leg support plate 46 and increase the comfort of the user.

[0038] Those skilled in the art can understand that in the above embodiment, it is described that two pressing blocks 23 are used to press and push the shoulders on both sides of the human body, and the first detection assembly 50 and the second detection assembly 30 are used to respectively measure the pressure on the two feet of the human body. However, the present disclosure does not limit the setting manner of the pressing blocks, the first detection assembly, and the second detection assembly. For example, only one pressing block may be provided and formed into a profiling pillow shape corresponding to the contour of the human head and neck part, so that it can accommodate the human head and neck part and push it. Or pressing blocks for pushing and pressing the patient against other body parts of the person to be detected are provided. For example, the person to be detected is placed in a sitting position on the bearing member, and a pressing block is arranged at the waist part of the person to be detected.

[0039] Alternatively, refer to Figure 5 , Figure 5 which shows a three-dimensional schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure. Compared with the weight-bearing simulation device in the foregoing embodiments, the weight-bearing position simulation device 400 of this embodiment similarly includes structures such as a fixing frame, a first detection component, and a second detection component. However, the difference lies in that the frame of the weight-bearing position simulation device 400 is formed into a seat-shaped structure for the subject to lift the leg. And the first adjustment component of the weight-bearing position simulation device 400 includes a pressing block 423 acting on the hip and / or knee of the subject, while the back of the subject is borne by a bearing member 425, so that the subject to be detected is placed in the weight-bearing position simulation device 400 in a sitting position. During the detection, the subject to be detected can be made to bend the leg, a pressing block 423 is arranged at the hip and / or knee of the subject to be detected, and the first adjustment component is operated to apply pressure to the corresponding position of the lower body of the subject to be detected through the pressing block 423. By setting it in this way, unnecessary pressure on the upper body bones of the subject to be detected can be avoided, and the deviation of the thrust during transmission caused by the upper body posture can be avoided. Thus, more accurate detection results can be obtained according to actual detection needs, and it is particularly advantageous in the case where the upper body of the patient cannot be pressed due to reasons.

[0040] For another example, an elastic strap can be arranged on the bearing member to replace the pressing block, so that the elastic strap is sleeved on positions such as the human shoulder to transmit the pushing force through the elastic strap. For the first detection component and the second detection component, the dynamometer therein can be set as a mechanical weighing scale or a weight sensor, and multiple weight sensors can be arranged in a wearable measurement device with multiple optional models to measure the distribution of the full-foot sole pressure on the contact surface between the human foot and the sole. Or multiple weight sensors are grouped into a sensor array for accurate detection. Also refer to Figure 6 , Figure 6 which shows a partial schematic diagram of a weight-bearing position simulation device according to some embodiments of the present disclosure. Among them, for example, by setting a hinge 51 at the connection between the first detection component 50 and the second detection component 30 and the frame 10, the first detection component and the second detection component can be set to be rotatable within a certain angle relative to the vertical direction to simulate the possibility of the center of gravity of the sole of the subject to be detected moving forward and backward, that is, the possibility of standing on tiptoe or landing on the heel can be simulated.

[0041] The following describes the working process of medical detection using some weight-bearing position simulation devices according to the present disclosure with reference to the drawings.

[0042] First, set two horizontally placed dynamometers. Let the person to be tested stand in a natural standing position, with their feet stepping on the two dynamometers respectively, and record the pressure data shown on the dynamometers at this time. Next, the person to be tested can be placed in a supine position on the upper vertical side of the fixing frame 10. The back of the person to be tested can be against the upper surface of the bed board of the bearing member 25, and the shoulders of the person to be tested are aligned with the positioning groove 231 on the pressing block 23 for positioning. The feet of the person to be tested are respectively aligned with the dynamometers of the first detection assembly 50 and the second detection assembly 30 along the longitudinal direction, and their legs are supported by the support portion in the vertical direction. Adjusting the position of the support portion along the longitudinal direction can align the center of gravity of the legs of the person to be tested with the support portion, enabling the person to be tested to easily maintain a natural supine state. After determining the posture of the person to be tested according to the above steps, the adjusting screw rod 21 can be rotated to move the pressing block 23 towards the person to be tested, so that the person to be tested is compressed along the longitudinal direction, and their feet respectively transmit the pressure to the two dynamometers under their feet. Compare the pressure data shown on the two dynamometers with the pressure data of the feet of the person to be tested in the natural standing state respectively, and rotate the adjusting screw rod 21 and the detection screw rod 31 until the two sets of data correspond. After the adjustment is completed, the person to be tested can simulate the physiological load-bearing state during standing when lying supine, and corresponding medical tests can be carried out.

[0043] According to the load-bearing position simulation device disclosed herein, by setting the respectively adjustable adjustment assembly and detection assembly, it is possible to enable the person to be tested to simulate the force conditions of the spine, pelvis, lower limbs, and ankles during natural standing when lying down, so that the test results are accurate and reliable. In addition, since the load-bearing position simulation device disclosed herein is adjusted and set through a mechanical structure, compared with other related devices, it is more suitable for being applied to detection instruments such as CT equipment that have special requirements for the detection object.

[0044] Figure 4 The schematic diagram of a CT system according to some embodiments of the present disclosure is shown, which includes a CT machine 200 and a load-bearing position simulation device 100 according to some embodiments of the present disclosure. Among them, after the person to be tested 300 is placed on the load-bearing position simulation device 100 and adjusted to the simulated physiological load-bearing state, they can be sent into the detection area of the CT machine 200 to perform load-bearing position CT image shooting.

[0045] Although multiple embodiments of the present disclosure have been shown and described herein, it is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art can think of many changes, alterations, and alternative ways without departing from the spirit and idea of the present disclosure. It should be understood that various alternative solutions to the embodiments of the present disclosure described herein can be adopted during the practice of the present disclosure. The appended claims are intended to define the protection scope of the present disclosure and thus cover equivalents or alternative solutions within the scope of these claims.

Claims

1. A load-bearing position simulation device, characterized in that: include: Fixed frame (10); A first adjustment assembly (20) comprising an adjustment component arranged on the fixing frame (10), and a pushing member driven by the adjustment component to push the human body along a pushing direction; A first detection component (50) fixed to the fixing frame (10) and used to measure the thrust of the first part of the human body along the pressing direction; A second detection component (30) is movably arranged on the fixing frame (10) along the pressing direction, and is used to measure the thrust of the second part of the human body along the pressing direction.

2. The load-bearing position simulation device according to claim 1, characterized in that: The pressing and pushing member comprises a shoulder pressing block (23) for pressing and pushing the human body's shoulder.

3. The load-bearing position simulation device according to claim 2, characterized in that: The first adjustment assembly (20) comprises a bearing member (25) for bearing a human body, and the shoulder pressure block (23) is fixed to the bearing member (25).

4. The load-bearing position simulation device according to claim 3, characterized in that: The bearing member (25) comprises a bed board for a human body to lie flat.

5. The load-bearing position simulation device according to claim 1, characterized in that: The first adjustment assembly (20) comprises a transverse adjustment portion (252), and the push member is mounted on the transverse adjustment portion (252) so as to be adjustable along the transverse direction.

6. The load-bearing position simulation device according to claim 1, characterized in that: It also includes a detection screw rod (31) which is threadedly connected to the fixing frame (10); the second detection assembly (30) is fixedly connected to the detection screw rod end seat (34); one end of the detection screw rod (31) is axially limited with the detection screw rod end seat (34); the detection screw rod (31) is used to rotate and drive the detection screw rod end seat (34) to move along the pushing direction.

7. The load-bearing position simulation device according to claim 1, characterized in that: The fixed frame (10) comprises a frame body and a guide rail (13) fixed to the frame body, and the push member is fixedly connected to at least one sliding block (43) on the guide rail (13).

8. The load-bearing position simulation device according to claim 7, characterized in that: It also includes a leg support plate (46), a support rail (14) is fixedly arranged on the frame, and the leg support plate (46) is fixedly connected to at least one support slider (47) on the support rail (14).

9. The load-bearing position simulation device according to claim 1, characterized in that: The first detection component (50) and the second detection component (30) are respectively connected to the fixing frame (10) via hinges (51), so that the first detection component (50) and the second detection component (30) can be tilted and moved relative to the vertical direction.

10. The load-bearing position simulation device according to claim 1, characterized in that: The pressing and pushing member comprises a pressing block (423) for pressing and pushing the hip and / or knee of the human body.

11. The load-bearing position simulation device according to any one of claims 1 to 10, characterized in that: The adjustment component comprises an adjustment screw (21) threadedly connected to the fixing frame (10), one end of the adjustment screw (21) being axially limited with at least one adjustment screw end seat (22), the push member being fixedly connected to the adjustment screw end seat (22), and the adjustment screw (21) being used for rotationally driving the adjustment screw end seat (22) to move along the push direction.

12. A CT system, characterized in that: It comprises a load-bearing position simulation device according to any one of claims 1-11.

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