Fixing device for bone imaging in nuclear medicine

Abstract

The invention discloses a fixing device for nuclear medicine bone imaging, and relates to the field of medical auxiliary devices.The fixing device comprises a scanning bed used for supporting a patient during nuclear medicine bone imaging and further comprises a main body mechanism used for assisting the scanning bed in supporting the patient; the adjusting mechanism is used for adjusting and supporting the legs of the patient, the adjusting mechanism is used for supporting and adjusting the feet of the patient, the limiting mechanism is used for limiting and fixing the feet of the patient, and through sliding of the adjusting frame and angle adjustment of the foot limiting frame, the patient can be helped to rapidly achieve and maintain the standard body position needed by nuclear medicine bone imaging; the body movement is effectively limited, image artifacts or blurs caused by improper postures are reduced, so that the imaging quality and the diagnosis accuracy are improved, and meanwhile, the device is flexible in structure and can meet personalized supporting and fixing requirements of patients with different body types.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary devices, and more specifically to a fixation device for nuclear medicine bone imaging. Background Technology

[0002] Nuclear medicine bone imaging devices are medical imaging equipment that utilize the principle of radionuclide tracing to generate images reflecting bone metabolic function by detecting the distribution of radiopharmaceuticals within the bone. Patients receive intravenous injections of osteophilic radiopharmaceuticals (such as technetium-99m-labeled methylene bisphosphonate, 99mTc-MDP). These drugs undergo ion exchange and chemical adsorption with inorganic salt components (hydroxyapatite crystals) in the bone and are deposited within the bone tissue, especially accumulating in metabolically active areas (such as tumor metastases, fracture sites, and areas of inflammation).

[0003] Existing nuclear medicine bone imaging devices require patients to maintain a specific posture (such as supine position, arms hanging naturally, toes aligned, heels apart in a V-shape) to ensure clear images. If the patient's leg posture causes body movement or abnormal bone position, it may indirectly affect image quality, such as the appearance of artifacts or blurred areas, thereby interfering with the doctor's accurate judgment of bone lesions. Furthermore, patients cannot easily adjust or limit their leg and body posture on the scanning bed, making nuclear medicine bone imaging devices susceptible to the influence of patient posture during scanning. Summary of the Invention

[0004] The purpose of this invention is to provide a fixation device for nuclear medicine bone imaging to solve the problem in the prior art that patients have difficulty adjusting and limiting their body posture on the scanning table.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixation device for nuclear medicine bone scintigraphy, comprising a scanning bed for supporting a patient during nuclear medicine bone scintigraphy, and further comprising: a main body mechanism fixedly mounted on the scanning bed for assisting the scanning bed in supporting the patient, the main body mechanism including a receiving component fixedly mounted on the bottom of the scanning bed; an adjustment mechanism mounted on the scanning bed for adjusting and supporting the patient's legs, the adjustment mechanism including two adjustment frames slidably mounted on the scanning bed; an adjustment mechanism rotatably mounted on the adjustment frames for supporting and adjusting the patient's feet, the adjustment mechanism including a foot limiting frame damped and rotatably mounted on the adjustment frame; and a limiting mechanism mounted on the foot limiting frame for limiting and fixing the patient's feet, the limiting mechanism including a plurality of Velcro straps attached to the foot limiting frame.

[0006] Furthermore, the main structure also includes a headrest fixedly mounted on the scanning bed.

[0007] Furthermore, the adjustment mechanism also includes sliding plates fixedly disposed on both sides of the side wall of the adjustment frame, and the adjustment frame is slidably disposed on the scanning bed by the two sliding plates; damping friction plates are fixedly disposed on both sides of the side wall of the adjustment frame below the sliding plates.

[0008] Furthermore, the adjustment mechanism also includes two fastening adjustment bolts screwed onto both sides of the scanning bed sidewall, and the ends of the fastening adjustment bolts are fixedly provided with damping friction blocks.

[0009] Furthermore, the adjustment mechanism also includes a support rotating shaft fixedly disposed within the adjustment frame, and a damping rotating shaft is fixedly disposed on the support rotating shaft; the adjustment frame is provided with the foot limiting frame through the support rotating shaft and the damping rotating shaft for damped rotation.

[0010] Furthermore, the adjustment mechanism also includes an adjustment groove formed on the adjustment frame, and limit arc blocks are fixedly provided on both sides of the side wall of the adjustment groove.

[0011] Furthermore, the limiting mechanism also includes a number of Velcro straps fixedly disposed on one side of the foot limiting frame sidewall, and the foot limiting frame is attached to a number of Velcro straps by the number of Velcro straps.

[0012] Furthermore, the Velcro tape is attached to the foot retainer with adhesive.

[0013] Compared with existing technologies, the present invention provides a fixation device for nuclear medicine bone scintigraphy. During use, the patient first lies flat on the scanning table with their head resting against a headrest to stabilize their position. Then, the adjustable frame is slid according to the patient's leg length, aligning the foot restraint with the feet. The adjustable frame is then secured by tightening the adjusting bolts. Next, the foot restraint is damped and rotated according to the scanning requirements to adjust the foot angle. Finally, Velcro straps and Velcro tape are used to securely fasten the feet to the foot restraint. Its advantages lie in the fact that the sliding of the adjustable frame and the angle adjustment of the foot restraint help the patient quickly achieve and maintain the standard posture required for nuclear medicine bone scintigraphy, effectively limiting body movement and reducing image artifacts or blurring caused by improper posture, thereby improving imaging quality and diagnostic accuracy. Furthermore, the device has a flexible structure that can adapt to the personalized support and fixation needs of patients of different body types. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of the nuclear medicine bone imaging support scanning bed provided in an embodiment of the present invention;

[0016] Figure 2 This is a diagram illustrating the structure of the scanning bed provided in an embodiment of the present invention;

[0017] Figure 3 Provided for embodiments of the present invention Figure 2 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the adjustment frame structure provided in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the front structure of the foot limiting frame provided in an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the back structure of the foot limiting frame provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Scanning bed; 2. Receiving component; 3. Headrest; 4. Adjustment frame; 5. Foot limit frame; 6. Velcro strap; 7. Fastening adjustment bolt; 8. Velcro tape; 9. Adjustment groove; 10. Limiting arc block; 11. Damping rotating shaft; 12. Sliding plate; 13. Damping friction plate; 14. Damping friction block; 15. Support rotating shaft. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] As attached Figure 1 To be continued Figure 6 As shown:

[0025] Example 1:

[0026] This invention provides a fixation device for nuclear medicine bone scintigraphy, including a scanning bed 1 for supporting a patient during nuclear medicine bone scintigraphy, and further including: a main body mechanism fixedly mounted on the scanning bed 1 for assisting the scanning bed 1 in supporting the patient, the main body mechanism including a receiving member 2 fixedly mounted on the bottom of the scanning bed 1; an adjustment mechanism mounted on the scanning bed 1 for adjusting and supporting the patient's legs, the adjustment mechanism including two adjustment frames 4 slidably mounted on the scanning bed 1; an adjustment mechanism rotatably mounted on the adjustment frames 4 for supporting and adjusting the patient's feet, the adjustment mechanism including a foot limiting frame 5 damped and rotatably mounted on the adjustment frames 4; and a limiting mechanism mounted on the foot limiting frame 5 for limiting and fixing the patient's feet, the limiting mechanism including a plurality of Velcro straps 6 attached to the foot limiting frame 5.

[0027] During use, the patient first lies flat on the scanning table 1, with their head resting against the headrest 3 to stabilize their position. Then, the patient slides the adjustment frame 4 according to their leg length, aligning the foot restraint frame 5 with their feet. The adjustment frame 4 is then secured by tightening the adjustment bolt 7. Next, the foot restraint frame 5 is rotated with damping according to the scanning requirements to adjust the foot angle. Finally, the feet are securely bound to the foot restraint frame 5 using Velcro straps 6 and 8. The advantage of this device is that by adjusting the sliding of the adjustment frame 4 and the angle of the foot restraint frame 5, the patient can quickly achieve and maintain the standard posture required for nuclear medicine bone scintigraphy (such as feet spread apart in a V-shape), effectively limiting body movement and reducing image artifacts or blurring caused by improper posture, thereby improving imaging quality and diagnostic accuracy. At the same time, the device has a flexible structure and can adapt to the personalized support and fixation needs of patients of different body types.

[0028] refer to Figure 1 and Figure 2 The main structure includes a scanning bed 1, a receiving component 2, and a headrest 3;

[0029] The scanning bed 1 is designed to support the patient while they lie flat, allowing them to slide into the testing equipment for examination. This facilitates the patient's testing. A support member 2 is fixedly connected to the bottom of the scanning bed 1, enabling the scanning bed 1 to slide smoothly into the testing equipment during use, thus facilitating the patient's scanning.

[0030] Meanwhile, a headrest 3 is fixedly connected to the scanning bed 1, so that the headrest 3 can determine the position of the patient's head. When the patient is undergoing a support scan on the scanning bed 1, the patient's head needs to be resting on the headrest 3, which facilitates the quick determination of the patient's body position, thereby facilitating the determination and limitation of the patient's leg and body posture.

[0031] Example 2:

[0032] refer to Figure 2 , Figure 3 and Figure 4 The adjustment mechanism includes an adjustment frame 4, a sliding plate 12, a damping friction plate 13, a fastening adjustment bolt 7, and a damping friction block 14;

[0033] Two adjustable frames 4 are slidably connected to the scanning bed 1, allowing the patient's legs to be supported on the two adjustable frames 4 when lying flat on the scanning bed 1. Sliding plates 12 are fixedly connected to both sides of the side wall of the adjustable frame 4, so that the two sliding plates 12 can slide and support the adjustable frame 4 inside the scanning bed 1 when it is slidably adjusted on the scanning bed 1. This facilitates stable sliding adjustment of the adjustable frame 4 on the scanning bed 1. Damping friction plates 13 are fixedly connected to both sides of the side wall of the adjustable frame 4 below the sliding plates 12, so that the adjustable frame 4 can be damped by the damping friction plates 13 when it is slidably adjusted on the scanning bed 1. This facilitates damped sliding adjustment of the adjustable frame 4 on the scanning bed 1, making the adjustable frame 4 more convenient and easy to use.

[0034] Meanwhile, fastening adjustment bolts 7 are screwed onto both sides of the side wall of the scanning bed 1, and a damping friction block 14 is fixedly connected to one end of the fastening adjustment bolt 7. When the fastening adjustment bolt 7 is screwed onto the side wall of the scanning bed 1 to adjust the depth, the damping friction block 14 will adjust the force of pressing against the damping friction plate 13, thereby adjusting the damping feel of the adjustment frame 4 during sliding adjustment. This makes it easy for the adjustment frame 4 to perform damping sliding adjustment according to the usage requirements. In addition, when the adjustment frame 4 is in use, the fastening adjustment bolt 7 can be screwed onto the damping friction block 14 to press against the damping friction plate 13 according to the usage requirements, thereby achieving the purpose of positioning the adjustment frame 4.

[0035] Secondly, the materials used for the damping friction block 14 include, but are not limited to, rubber and silicone materials, so that when the fastening adjustment bolt 7 is screwed on, the damping friction block 14 is pressed against the damping friction plate 13 and wear occurs, the wear is mainly on the damping friction block 14, thereby reducing the cost of replacing parts of the scanning bed 1.

[0036] refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 The adjustment mechanism includes an adjustment groove 9, a limiting arc block 10, a foot limiting bracket 5, a support rotating shaft 15, and a damping rotating shaft 11.

[0037] By fixing a support rotating shaft 15 inside the adjustment frame 4, and fixing a damping rotating shaft 11 on the support rotating shaft 15, and fixing a foot limiting frame 5 on the damping rotating shaft 11, the adjustment frame 4 can be damped and rotatably connected to the foot limiting frame 5 through the support rotating shaft 15 and the damping rotating shaft 11. Thus, when the patient lies flat on the scanning bed 1, the patient's legs will be placed on the two adjustment frames 4. At this time, the position of the adjustment frame 4 can be adjusted by fastening the adjustment bolt 7 and the damping friction block 14 in conjunction with the sliding plate 12 and the damping friction plate 13, so that the patient's feet are placed exactly on the foot limiting frame 5. Through the sliding adjustment of the adjustment frame 4, the two foot limiting frames 5 can be made to fit exactly with the patient's feet, avoiding the influence of factors such as leg length difference, which would make it difficult for the foot limiting frame 5 to contact the patient's feet.

[0038] Meanwhile, an adjustment groove 9 is provided on the adjustment frame 4, and limiting arc blocks 10 are fixedly connected to both sides of the side wall of the adjustment groove 9, so that the limiting arc blocks 10 can reinforce both sides of the side wall of the adjustment groove 9, thereby improving the sturdiness of the adjustment groove 9. During the use of the foot limiting frame 5, the foot limiting frame 5 can be damped and rotated on the adjustment frame 4 through the damping shaft 11 and the support rotating shaft 15 according to the requirements of the scanning detection, so that the patient's feet are scanned at a suitable angle for scanning detection. The damping shaft 11 can limit the patient's feet, so as to facilitate the patient's feet, legs and body to maintain the posture, thereby avoiding blurry scanning detection.

[0039] Example 3:

[0040] refer to Figure 3 , Figure 5 and Figure 6 The limiting mechanism includes a foot limiting frame 5, a Velcro strap 8, and a Velcro strap 6;

[0041] By fixing several Velcro straps 8 to the foot limiting frame 5, several Velcro straps 6 can be attached to the foot limiting frame 5 through the Velcro straps 8. After the foot limiting frame 5 comes into contact with the patient's foot, several Velcro straps 6 can be attached to the foot limiting frame 5 through the Velcro straps 8. Then, the several Velcro straps 6 are wrapped around the patient's foot to limit the patient's foot and prevent the patient's foot from slipping off the foot limiting frame 5, thereby facilitating the limiting scan of the patient's foot and leg.

[0042] Meanwhile, several Velcro straps 8 are fixedly connected to one side of the foot restraint frame 5, and the number of Velcro straps 8 is greater than that of Velcro straps 6. This allows the Velcro straps 6 to be used in conjunction with several Velcro straps 8 to restrain the patient's foot according to the patient's foot shape, thereby improving the ease of use of the foot restraint frame 5.

[0043] Secondly, the Velcro tape 8 is fixedly connected to the foot restraint frame 5 by adhesive, which makes it easy to replace the Velcro tape 8 during use, thereby preventing the patient's feet from becoming cross-infected more quickly and improving the safety of the foot restraint frame 5.

[0044] Working principle: First, the scanning bed 1 is pushed to a suitable position, and the patient lies supine on the scanning bed 1 with their head resting on the headrest 3 fixedly installed on the scanning bed 1. This establishes the longitudinal reference position of the body, providing a reference for subsequent precise adjustments of the legs and feet. Then, according to the patient's height and leg length, the operator slides two adjustment frames 4 along the length of the scanning bed 1. The adjustment frames 4 move smoothly within the guide rails of the scanning bed 1 via sliding plates 12 on both sides. During the movement, the damping friction plates 13 on the side walls of the adjustment frames 4 generate moderate friction with the surface of the scanning bed 1, providing initial damping. To allow for fine-tuning; when the adjustment frame 4 slides to approximately correspond to the lower part of the patient's calf or ankle, precise positioning is performed: by screwing on the fastening adjustment bolts 7 installed on both sides of the scanning bed 1, the damping friction blocks 14 (usually made of rubber or silicone) at their ends are pushed inward and tightly press against the damping friction plate 13 on the adjustment frame 4, using the generated friction to firmly lock the adjustment frame 4 in the desired position. This design achieves stepless sliding adjustment while ensuring that the adjustment frame 4 does not shift during scanning; after the adjustment frame 4 is positioned, foot angle adjustment begins: each A foot restraint frame 5 is connected to the adjustment frame 4 via a supporting rotating shaft 15 and a damping rotating shaft 11 integrated thereon. The operator can hold the foot restraint frame 5 and apply a certain torque according to the standardized positioning requirements for nuclear medicine bone scintigraphy (e.g., requiring heels apart and toes aligned at a specific angle), allowing it to rotate around the damping rotating shaft 11 within the adjustment groove 9 on the adjustment frame 4. The limiting arc blocks 10 on both sides of the adjustment groove 9 enhance the stability of this rotating structure. The resistance provided by the damping rotating shaft 11 allows the foot restraint frame 5 to be suspended at any angle, thus precisely controlling the patient's foot. The patient's feet are guided and supported at a preset abduction or adduction angle that meets the scanning requirements. Finally, the feet are fixed: each foot of the patient is placed securely on the concave surface of the corresponding foot restraint frame 5. Then, Velcro straps 6 are used on several Velcro straps 8 that are pre-attached to the side of the foot restraint frame 5 with glue. According to the specific shape of the patient's instep, arch and ankle, different Velcro straps 8 are selected for attachment and binding. The straps are wrapped around the feet and glued firmly, thereby firmly restraining the feet on the foot restraint frame 5, effectively preventing the feet from slipping or rotating due to muscle relaxation or unintentional movements during the scanning process.At this point, the patient is effectively positioned and fixed from head to toe, and the entire body posture meets the requirements of the scanning protocol. The operator can then smoothly push the fixed patient's scanning bed 1 under the detector ring of the nuclear medicine imaging equipment for image acquisition. This process provides basic support and positioning through the main mechanism (scanning bed 1, receiving component 2, headrest 3), and achieves personalized position adaptation and locking of the leg support components through the adjustment mechanism (adjustment frame 4, sliding plate 12, damping friction plate 13, fastening adjustment bolt 7, damping friction block 14). The foot angle is precisely and maintainably adjusted through the adjustment mechanism (foot limit frame 5, support rotation shaft 15, damping rotation shaft 11, adjustment groove 9, limit arc block 10). Finally, the foot is reliably fixed through the limiting mechanism (Hook and Velcro tape 8, Velcro strap 6). This systematically solves the difficulty of patients maintaining a standard body position independently during scanning, ensuring stable and reliable image quality.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fixation device for nuclear medicine bone scintigraphy, comprising a scanning bed (1) for supporting a patient during nuclear medicine bone scintigraphy, characterized in that, Also includes: The main body is fixedly installed on the scanning bed (1) and is used to assist the scanning bed (1) in supporting the patient. The main body includes a support member (2) fixedly installed at the bottom of the scanning bed (1). An adjustment mechanism is provided on the scanning bed (1) for adjusting and supporting the patient's legs. The adjustment mechanism includes two adjustment frames (4) that are slidably provided on the scanning bed (1). An adjustment mechanism is rotatably mounted on an adjustment frame (4) for supporting and adjusting the patient's feet. The adjustment mechanism includes a foot limiting frame (5) that is damped and rotatably mounted on the adjustment frame (4). A limiting mechanism is provided on the foot limiting frame (5) for limiting and fixing the patient's foot. The limiting mechanism includes several Velcro straps (6) that are attached to the foot limiting frame (5).

2. The fixation device for nuclear medicine bone imaging according to claim 1, characterized in that, The main structure also includes a headrest (3) fixedly mounted on the scanning bed (1).

3. The fixation device for nuclear medicine bone imaging according to claim 1, characterized in that, The adjustment mechanism also includes sliding plates (12) fixedly disposed on both sides of the side wall of the adjustment frame (4), and the adjustment frame (4) is slidably disposed on the scanning bed (1) by means of the two sliding plates (12); Damping friction plates (13) are fixedly installed on both sides of the side wall of the adjustment frame (4) below the sliding plate (12).

4. The fixation device for nuclear medicine bone imaging according to claim 3, characterized in that, The adjustment mechanism also includes two fastening adjustment bolts (7) screwed onto both sides of the side wall of the scanning bed (1), and the ends of the fastening adjustment bolts (7) are fixedly provided with damping friction blocks (14).

5. The fixation device for nuclear medicine bone imaging according to claim 1, characterized in that, The adjustment mechanism also includes a support rotating shaft (15) fixedly installed in the adjustment frame (4), and a damping rotating shaft (11) is fixedly installed on the support rotating shaft (15). The adjustment frame (4) is equipped with the foot limit frame (5) through the damping rotation of the support rotation shaft (15) and the damping rotation shaft (11).

6. The fixation device for nuclear medicine bone imaging according to claim 5, characterized in that, The adjustment mechanism also includes an adjustment groove (9) opened on the adjustment frame (4), and limit arc blocks (10) are fixedly provided on both sides of the side wall of the adjustment groove (9).

7. The fixation device for nuclear medicine bone imaging according to claim 1, characterized in that, The limiting mechanism also includes several Velcro tapes (8) fixedly installed on one side of the side wall of the foot limiting frame (5), and the foot limiting frame (5) is attached with several Velcro straps (6) by the several Velcro tapes (8).

8. A fixation device for nuclear medicine bone imaging according to claim 7, characterized in that, The Velcro tape (8) is attached to the foot retainer (5) with adhesive.

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