Lower limb CT scanning auxiliary device
By designing a lower limb CT scanning auxiliary device with rotating support and locking mechanism, the problems of poor image quality and insufficient contrast caused by position or cause in lower limb CT scanning are solved, and the stability of knee position and image quality are improved.
Patent Information
- Application Number
- CN202421284138.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During the CT scan of the lower limbs, due to the position or cause, the lower limbs are prone to move, and the two sides are not on the same CT scan line, which affects the image quality, is difficult to compare on both sides, and affects the diagnosis.
A lower limb CT scanning auxiliary device is designed, including a moving bed slidably connected to the fixed bed body through a driving mechanism. The top of the moving bed is equipped with a rotating support mechanism and a locking mechanism for supporting and locking the popliteal fossa position of the patient's leg to ensure the stability of the knee position.
Through this device, it can effectively support and lock the popliteal fossa position of the patient's legs, ensure the stability of the knee during CT scan, improve image quality, enhance contrast, and improve diagnostic effects.
Smart Images
Figure CN222899150U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the auxiliary field of CT scanning, in particular to an auxiliary device for CT scanning of lower limbs. Background Technique
[0002] CT is computed tomography. It uses precisely collimated X-ray beams, γ rays, ultrasonic waves, etc., together with highly sensitive detectors to make one cross-sectional scan after another around a certain part of the human body.
[0003] When CT scanning examines the lower limb joints of patients, due to the body position or the patient's own cause, the lower limbs are prone to movement, and the bilateral joints are not on the same CT scanning line, which affects the image quality and makes it difficult to compare both sides, bringing a certain impact on the diagnosis of patients. Therefore, an auxiliary device for CT scanning of lower limb joints is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to provide an auxiliary device for CT scanning of lower limbs to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: An auxiliary device for CT scanning of lower limbs, including a moving bed slidably connected to a fixed bed through a driving mechanism. A connection groove extending towards the tail end is opened in the middle of the top end of the moving bed, and a receiving groove connected to the end of the connection groove is opened at the top end of the moving bed;
[0006] A rotating support mechanism for supporting the popliteal fossa position of the leg is movably connected to the inner walls of the connection groove and the receiving groove. One end of the rotating support mechanism is connected with a locking mechanism;
[0007] The locking mechanism is used to lock the rotating support mechanism after rotation to prevent the rotating support mechanism from moving after rotation.
[0008] As a further scheme of the utility model: The rotating support mechanism includes a rotating plate movably connected to the inner wall of the connection groove and a support plate fixedly connected to the end of the rotating plate. The support plate in the reset state is located in the inner cavity of the receiving groove;
[0009] The rotating support mechanism further includes a notch opened at one end of the moving bed and extending to the other end of the moving bed. A moving shaft is movably connected to the inner wall of the notch, and the moving shaft is fixedly connected to the head end of the rotating plate.
[0010] As a further scheme of the utility model: One end of the moving shaft is integrally formed with an anti-disengagement plate, the diameter of the anti-disengagement plate is larger than the diameter of the moving shaft, and the locking mechanism is arranged at the other end of the moving shaft.
[0011] As a further solution of the present utility model: The locking mechanism includes a threaded groove formed at one end of the moving shaft away from the anti - detachment plate. A threaded column is threadedly connected to the inner wall of the threaded groove. One end of the threaded column is fixedly connected to a rotating handle, and the rotating handle and the anti - detachment plate are located outside both ends of the moving bed.
[0012] As a further solution of the present utility model: The outer circumference of the rotating handle is formed with grooves for increasing friction.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. By providing the rotating support mechanism and the locking mechanism, the popliteal fossa position of the patient's leg can be effectively supported, and the support plate can be rotated to a height that conforms to the length of the patient's lower leg according to the height of the patient's leg, with strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a schematic structural diagram of another perspective of the present utility model;
[0017] Figure 3 is a schematic structural diagram of the rotating support mechanism of the present utility model;
[0018] Figure 4 is a connection schematic diagram of the locking mechanism of the present utility model;
[0019] Figure 5 is the Figure 4 partial enlarged view of part A in the present utility model.
[0020] In the figure: 1. Moving bed; 2. Connecting groove; 3. Accommodating groove; 4. Rotating plate; 5. Support plate; 6. Notch; 7. Rotating handle; 8. Moving shaft; 9. Anti - detachment plate; 10. Threaded groove; 11. Threaded column. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1 to 5, in the embodiment of the present utility model, a lower limb CT scanning auxiliary device includes a moving bed 1 slidably connected to a fixed bed body through a driving mechanism. A connecting groove 2 extending towards the tail end is formed in the middle of the top end of the moving bed 1, and a receiving groove 3 connected to the end of the connecting groove 2 is formed in the top end of the moving bed 1; a rotating support mechanism for supporting the popliteal fossa position of the leg is movably connected to the inner walls of the connecting groove 2 and the receiving groove 3, and one end of the rotating support mechanism is connected with a locking mechanism; the locking mechanism is used to lock the rotating support mechanism after rotation is completed to prevent the rotating support mechanism from moving after rotation is completed.
[0023] In this embodiment: First, the patient lies on the moving bed 1, then bends the knees so that the knees are naturally bent upwards. Then, by pulling the rotating support mechanism to move and rotate upwards until the rotating support mechanism is fixed at the popliteal fossa position of the patient's leg. At this time, by rotating the locking mechanism, the locking mechanism effectively limits the rotating support mechanism and prevents it from rotating, and then the CT scanning device can scan the knee, ensuring the stability of the position of the knee during the scanning process.
[0024] Please refer specifically to Figure 3 and Figure 4 , the rotating support mechanism includes a rotating plate 4 movably connected to the inner wall of the connecting groove 2 and a support plate 5 fixedly connected to the end of the rotating plate 4. The support plate 5 in the reset state is located in the inner cavity of the receiving groove 3; the rotating support mechanism further includes a notch 6 formed at one end of the moving bed 1 and extending to the other end of the moving bed 1. A moving shaft 8 is movably connected to the inner wall of the notch 6, and the moving shaft 8 is fixedly connected to the first end of the rotating plate 4.
[0025] In this embodiment: When the locking mechanism is not locked and the patient lies on the moving bed 1, first pull the support plate 5 to rotate upwards until the support plate 5 is separated from the receiving groove 3, and then pull the locking mechanism to move. The locking mechanism drives the moving shaft 8 to move along the notch 6. The moving shaft 8 pulls the rotating plate 4 and the support plate 5 to move. When the rotating plate 4 and the support plate 5 move to a suitable position, pull the rotating plate 4 to rotate. The rotating plate 4 drives the support plate 5 to rotate upwards until the support plate 5 abuts against the popliteal fossa position of the patient's leg, and then the locking mechanism can be tightened.
[0026] Please refer specifically to Figure 3 and Figure 4 , an anti - detachment plate 9 is integrally formed at one end of the moving shaft 8. The diameter of the anti - detachment plate 9 is larger than the diameter of the moving shaft 8. The locking mechanism is arranged at the other end of the moving shaft 8. The locking mechanism includes a threaded groove 10 formed at the end of the moving shaft 8 away from the anti - detachment plate 9. A threaded column 11 is threadedly connected to the inner wall of the threaded groove 10. One end of the threaded column 11 is fixedly connected with a rotating handle 7. The rotating handle 7 and the anti - detachment plate 9 are located outside the two ends of the moving bed 1.
[0027] In this embodiment: By rotating the rotating handle 7, the rotating handle 7 drives the threaded column 11 to rotate. At this time, under the action of the threaded groove 10, during the rotation of the threaded column 11, it moves deeper into the threaded groove 10. After being fully tightened, the end faces of the rotating handle 7 and the anti-disengagement plate 9 that are close to each other effectively abut against the two end faces of the moving bed 1, thereby restricting the rotation of the moving shaft 8, and further restricting the rotation of the rotating plate 4 and the support plate 5.
[0028] Please refer specifically to Figure 5 , and the outer periphery of the rotating handle 7 is formed with a groove for increasing the friction force.
[0029] In this embodiment: The groove can increase the friction force between the rotating handle 7 and the hand, and can better achieve the effects of effective tightening and loosening.
[0030] The above-mentioned is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A lower limb CT scanning auxiliary device, comprising a movable bed (1) slidably connected to a fixed bed body through a driving mechanism, characterized in that: A connecting groove (2) extending toward the rear end is provided at the middle of the top end of the moving bed (1), and a receiving groove (3) connected to the rear end of the connecting groove (2) is provided at the top end of the moving bed (1); The inner wall of the connecting groove (2) and the containing groove (3) is movably connected to a rotation support mechanism for supporting the popliteal fossa of the leg, and one end of the rotation support mechanism is connected to a locking mechanism; The locking mechanism is used to lock the rotation support mechanism after the rotation is completed, so as to prevent the rotation support mechanism from moving after the rotation is completed; The rotation support mechanism comprises a rotation plate (4) movably connected to the inner wall of the connection groove (2) and a support plate (5) fixedly connected to the end of the rotation plate (4); the support plate (5) in a reset state is located in the inner cavity of the accommodating groove (3); The rotating support mechanism further comprises a notch (6) formed at one end of the movable bed (1) and extending to the other end of the movable bed (1); a movable shaft (8) is movably connected to the inner wall of the notch (6); and the movable shaft (8) is fixedly connected to the head end of the rotating plate (4).
2. A lower limb CT scanning auxiliary device according to claim 1, characterized in that: An anti-slip plate (9) is integrally formed at one end of the movable shaft (8); the diameter of the anti-slip plate (9) is larger than the diameter of the movable shaft (8); and the locking mechanism is arranged at the other end of the movable shaft (8).
3. The lower limb CT scanning auxiliary device according to claim 2, characterized in that: The locking mechanism comprises a threaded groove (10) formed at an end of the movable shaft (8) away from the anti-slip plate (9); a threaded column (11) is threadedly connected to the inner wall of the threaded groove (10); one end of the threaded column (11) is fixedly connected to a rotating handle (7); the rotating handle (7) and the anti-slip plate (9) are located outside the two ends of the movable bed (1).
4. The lower limb CT scanning auxiliary device according to claim 3, characterized in that: The outer periphery of the rotating handle (7) is formed with a groove for increasing friction.