Head fixing device for oral cavity CBCT (cone beam computed tomography) tomography

Abstract

The utility model discloses a head fixing device for oral cavity CBCT (cone beam computed tomography) tomography. The head fixing device comprises a base and a support frame, a supporting frame is welded to the top end of the base, a fixing frame is installed on one side of the top end of the supporting frame, a fine adjustment structure is arranged at the front end of the fixing frame, and a fixing structure is arranged in the fixing frame. The fixing structure comprises a servo motor, a two-way threaded rod, threaded sleeves, clamping plates and earplugs, the two-way threaded rod is arranged in the fixing frame, and the threaded sleeves are installed on the outer portions of the two sides of the two-way threaded rod. The head can be fixed through matched use of the clamping plates, the two sets of clamping plates can be driven to move towards the middle position through matched use of the servo motor, the two-way threaded rod and the threaded sleeve, and therefore the positions of the clamping plates are adjusted according to the size of the head of a patient, and the head of the patient can be fixed. And patients with different head sizes can be fixed, so that the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral CBCT, and particularly relates to a head fixing device for oral CBCT tomography. Background Technique

[0002] Oral CBCT (Cone Beam Computed Tomography) tomography has a wide range of applications in the field of oral medicine. Especially in head imaging, oral CBCT is an X-ray imaging device that shows the normal and pathological tissue structures of the oral and maxillofacial regions and even the entire skull through X-ray cone beam scanning. When performing oral CBCT tomography, it is also necessary to fix the head to prevent the movement of the head during imaging from affecting the imaging effect. Therefore, a head fixing device is required.

[0003] However, there are still some problems with traditional head fixing devices during use. When fixing the head, traditional head fixing devices are inconvenient to adjust the distance between the fixing plates according to the size of the patient's head, resulting in trouble when fixing patients with different head sizes. Therefore, a head fixing device for oral CBCT tomography is needed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a head fixing device for oral CBCT tomography, which is used to solve the defect that when the existing head fixing device is in use, it is inconvenient to adjust the distance between the fixing plates according to the size of the patient's head, resulting in trouble when fixing patients with different head sizes.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A head fixing device for oral CBCT tomography, comprising a base and a support frame; a support frame is welded to the top end of the base, a fixing frame is installed on one side of the top end of the support frame, a fine adjustment structure is arranged at the front end of the fixing frame, and a fixing structure is arranged inside the fixing frame; the fixing structure includes a servo motor, a bidirectional threaded rod, a screw sleeve, a clamping plate and earplugs, the bidirectional threaded rod is arranged inside the fixing frame, and screw sleeves are installed on the outer sides of both sides of the bidirectional threaded rod.

[0006] Preferably, a clamping plate is installed at the bottom end of the screw sleeve, an earplug is fixed on one side of the clamping plate, the servo motor is arranged on one side of the fixing frame, and the output end of the servo motor extends into the fixing frame and is connected to one end of the bidirectional threaded rod.

[0007] Preferably, an external thread is arranged on the outer side of the bidirectional threaded rod, an internal thread is arranged on the inner side of the screw sleeve, and a threaded connection is formed between the bidirectional threaded rod and the screw sleeve.

[0008] Preferably, there are two groups of the clamping plates, and the two groups of clamping plates are symmetrically distributed at the bottom end of the fixing frame.

[0009] Preferably, the fine-tuning structure includes a fixing plate, a rotating rod, a rotating groove, a guiding rod, a nose sleeve and a connecting plate. The fixing plate is arranged at the front end of the fixing frame. A rotating groove is formed inside the fixing plate. A rotating rod is inserted into the rotating groove. One end of the rotating rod is movably connected to the connecting plate. The bottom end of the connecting plate is arranged on the nose sleeve. A guiding rod is installed at the front end of the nose sleeve.

[0010] Preferably, one end of the guiding rod penetrates through the inside of the bottom end of the fixing plate, and a guiding structure is formed between the guiding rod and the fixing plate.

[0011] Preferably, the rotating rod is inserted into the rotating groove, and a threaded connection is formed between the rotating rod and the rotating groove.

[0012] A head fixing device for oral CBCT tomography provided by the present utility model has the following advantages:

[0013] Through the cooperative use of the clamping plates, the head can be fixed. And through the cooperative use of the servo motor, the bidirectional threaded rod and the nut sleeve, the two groups of clamping plates can be driven to move towards the middle position, so as to adjust the positions of the clamping plates according to the size of the patient's head, so that patients with different head sizes can be fixed, thus improving the practicability.

[0014] Through the cooperative use of the rotating rod and the rotating groove, the nose sleeve on one side of the connecting plate can be pushed to move to one side, so that it abuts against the patient's nose, so that the position of the nose sleeve can be adjusted according to the size of the patient's head, so that the nose sleeve can be sleeved on the patient's nose when different patients are fixed, thus completing the fine-tuning work of the distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the side view structural schematic diagram of the present utility model;

[0017] Figure 3 is the bottom view structural schematic diagram of the present utility model;

[0018] Figure 4 is the front view structural schematic diagram of the fine-tuning structure of the present utility model;

[0019] Figure 5 is the rear view structural schematic diagram of the fine-tuning structure of the present utility model.

[0020] In the figure: 1. Base; 2. Support frame; 3. Fixed frame; 4. Fine-tuning structure; 401. Fixed plate; 402. Rotating rod; 403. Rotating groove; 404. Guide rod; 405. Nose sleeve; 406. Connecting plate; 5. Fixing structure; 501. Servo motor; 502. Bidirectional threaded rod; 503. Nut sleeve; 504. Clamping plate; 505. Earplug. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The embodiment of the present invention provides a head fixing device for oral CBCT tomography, as Figures 1 - 5 shown, which includes a base 1 and a support frame 2; a support frame 2 is welded to the top end of the base 1, a fixed frame 3 is installed on one side of the top end of the support frame 2, a fine-tuning structure 4 is arranged at the front end of the fixed frame 3, and a fixing structure 5 is arranged inside the fixed frame 3.

[0023] In a further preferred embodiment of the present invention, as Figures 1 - 5 shown: The fixing structure 5 includes a servo motor 501, a bidirectional threaded rod 502, a nut sleeve 503, a clamping plate 504 and an earplug 505. The bidirectional threaded rod 502 is arranged inside the fixed frame 3. Nut sleeves 503 are installed on the outer sides of both sides of the bidirectional threaded rod 502. A clamping plate 504 is installed at the bottom end of the nut sleeve 503. An earplug 505 is fixed on one side of the clamping plate 504. The servo motor 501 is arranged on one side of the fixed frame 3. The output end of the servo motor 501 extends into the fixed frame 3 and is connected to one end of the bidirectional threaded rod 502. External threads are arranged on the outer side of the bidirectional threaded rod 502, and internal threads are arranged on the inner side of the nut sleeve 503. A threaded connection is formed between the bidirectional threaded rod 502 and the nut sleeve 503. Two groups of clamping plates 504 are provided, and the two groups of clamping plates 504 are symmetrically distributed at the bottom end of the fixed frame 3.

[0024] Specifically, in this embodiment: Before performing oral CBCT tomography on a patient, it is necessary to first fix the patient's head. When fixing the patient's head, let the patient stand at the bottom of the fixing frame 3. After standing well, the external power supply starts the servo motor 501. After starting, the servo motor 501 drives the bidirectional threaded rod 502 to rotate. When the bidirectional threaded rod 502 rotates, through the cooperation with the nut sleeve 503, it drives the two sets of clamping plates 504 to move towards the middle position. When the clamping plates 504 are attached to the patient's head, the movement stops, and the earplugs 505 are inserted into the patient's ears, thereby realizing the fixation work for patients with different head sizes.

[0025] In a further preferred embodiment of the present utility model, as Figures 1 - 5 shown: The fine-tuning structure 4 includes a fixing plate 401, a rotating rod 402, a rotating groove 403, a guiding rod 404, a nose sleeve 405, and a connecting plate 406. The fixing plate 401 is arranged at the front end of the fixing frame 3. A rotating groove 403 is opened inside the fixing plate 401. The rotating rod 402 is inserted into the rotating groove 403. One end of the rotating rod 402 is movably connected to the connecting plate 406. The bottom end of the connecting plate 406 is arranged on the nose sleeve 405. A guiding rod 404 is installed at the front end of the nose sleeve 405. One end of the guiding rod 404 penetrates through the inside of the bottom end of the fixing plate 401. A guiding structure is formed between the guiding rod 404 and the fixing plate 401. The rotating rod 402 is inserted into the rotating groove 403, and a threaded connection is formed between the rotating rod 402 and the rotating groove 403.

[0026] Specifically, in this embodiment, after the head fixation is completed, hold the rotating rod 402 and rotate it. As the rotating rod 402 rotates with the rotating groove 403, it pushes the connecting plate 406 to move to one side. When the connecting plate 406 moves, it drives the nose sleeve 405 to also move to one side, making the nose sleeve 405 fit on the patient's nose. Then, through the cooperation with the two sets of clamping plates 504, the fixation of the patient's head is completed, so that the patient's head will not move randomly during photography, and finally the fixation work is completed.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A head fixing device for oral CBCT tomography, comprising a base (1) and a support frame (2); Features: A support frame (2) is welded to the top of the base (1); a fixing frame (3) is installed on one side of the top of the support frame (2); a fine-tuning structure (4) is provided at the front end of the fixing frame (3); and a fixing structure (5) is provided inside the fixing frame (3); The fixing structure (5) comprises a servo motor (501), a bidirectional threaded rod (502), a screw sleeve (503), a clamping plate (504) and an earplug (505); the bidirectional threaded rod (502) is arranged inside the fixing frame (3); screw sleeves (503) are installed outside the two sides of the bidirectional threaded rod (502).

2. The head fixing device for oral CBCT tomography according to claim 1, characterized in that: A clamping plate (504) is installed at the bottom end of the screw sleeve (503), an earplug (505) is fixed to one side of the clamping plate (504), the servo motor (501) is arranged on one side of the fixing frame (3), and the output end of the servo motor (501) extends to the inside of the fixing frame (3) and is connected to one end of the bidirectional threaded rod (502).

3. The head fixing device for oral CBCT tomography according to claim 2, characterized in that: The outer side of the bidirectional threaded rod (502) is provided with an external thread, and the inner side of the threaded sleeve (503) is provided with an internal thread, so that a threaded connection is formed between the bidirectional threaded rod (502) and the threaded sleeve (503).

4. The head fixing device for oral CBCT tomography according to claim 1, characterized in that: Two groups of the clamping plates (504) are provided, and the two groups of the clamping plates (504) are symmetrically distributed at the bottom end of the fixing frame (3).

5. The head fixing device for oral CBCT tomography according to claim 4, characterized in that: The fine-tuning structure (4) comprises a fixing plate (401), a rotating rod (402), a rotating groove (403), a guide rod (404), a nose sleeve (405) and a connecting plate (406); the fixing plate (401) is arranged at the front end of the fixing frame (3); a rotating groove (403) is provided inside the fixing plate (401); a rotating rod (402) is inserted inside the rotating groove (403); one end of the rotating rod (402) is movably connected to the connecting plate (406); the bottom end of the connecting plate (406) is arranged on the nose sleeve (405); and the front end of the nose sleeve (405) is installed with the guide rod (404).

6. The head fixing device for oral CBCT tomography according to claim 5, characterized in that: One end of the guide rod (404) passes through the interior of the bottom end of the fixed plate (401), and a guide structure is formed between the guide rod (404) and the fixed plate (401).

7. The head fixing device for oral CBCT tomography according to claim 5, characterized in that: The rotating rod (402) is inserted into the rotating groove (403), and a threaded connection is formed between the rotating rod (402) and the rotating groove (403).

Images