Jaw support for oral cavity CBCT (cone beam computed tomography)

Abstract

The utility model discloses a jaw support for oral cavity CBCT (cone beam computed tomography), which comprises a jaw support main body, a long jaw support rubber mat is laid at the top end of the jaw support main body, a short jaw support rubber mat is laid at the bottom end of the jaw support main body, and a mounting groove is arranged on one side of the jaw support main body. According to the jaw support for the oral cavity CBCT, due to the fact that the jaw support long rubber mat and the jaw support short rubber mat are arranged, the jaw support long rubber mat is suitable for being used by a patient with a large face, and the jaw support short rubber mat is suitable for being used by a patient with a small face; the jaw support rubber pads with different lengths are convenient for patients with different jaw lengths, and the application range of patients is wide; the jaw support body can be suitable for multiple application scenes, and the use requirements of different imaging view fields are met; the jaw support body is installed on the jaw support support through the supporting rod, and the jaw support body is convenient to install, convenient and fast to adjust, simple in structure, low in price and low in maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of oral CBCT, in particular to a jaw support for oral CBCT. Background Technique

[0002] Oral CBCT is the abbreviation of Cone beam CT. As the name implies, it is an oral and maxillofacial cone beam computed tomography device. At present, oral CBCT has been widely used. When taking pictures with oral CBCT, it is necessary to make the median sagittal plane of the patient's head coincide with the median sagittal plane in the CBCT image. If the patient's head shakes greatly during the shooting process, adverse factors such as motion artifacts will appear in the captured image, which will affect the image clarity. Therefore, a jaw support is set in the oral CBCT to limit the face and position the patient's head.

[0003] However, the traditional jaw support has the following disadvantages:

[0004] Due to the different face shapes and jaw lengths of patients, and patients with different conditions also have requirements for the area and size of the imaging field of the film. This requires that the jaw support is adjustable both up and down and front and back. At present, most of the adjustments of the jaw support on the market are manual or electric for range adjustment. The adjustment is relatively cumbersome and the range adjustment is not accurate enough. The cost of the adjustment mechanism and the maintenance cost are both relatively high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a jaw support for oral CBCT to solve the problems put forward in the above background technique. Due to the different face shapes and jaw lengths of patients, and patients with different conditions also have requirements for the area and size of the imaging field of the film. This requires that the jaw support is adjustable both up and down and front and back. At present, most of the adjustments of the jaw support on the market are manual or electric for range adjustment. The adjustment is relatively cumbersome and the range adjustment is not accurate enough. The cost of the adjustment mechanism and the maintenance cost are both relatively high.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A jaw support for oral CBCT, including a jaw support main body. A jaw support long rubber pad is laid on the top end of the jaw support main body. A jaw support short rubber pad is laid on the bottom end of the jaw support main body. An installation groove is opened on one side of the jaw support main body. Both ends of one side of the inner wall of the installation groove are fixedly installed with support rods. The connection parts between the jaw support main body and the jaw support long rubber pad and the connection parts between the jaw support main body and the jaw support short rubber pad are both sleeved with enclosing parts, and the enclosing parts are arc-shaped structures.

[0007] Preferably, both the long jaw support rubber pad and the short jaw support rubber pad include a hard liner, a soft liner, and a silicone pad. The top end of the hard liner is fixedly connected to the bottom end of the soft liner, and the top end of the soft liner is fixedly connected to the bottom end of the silicone pad. The bottom end of the hard liner on the long jaw support rubber pad is connected to the jaw support main body, and the bottom end of the hard liner on the short jaw support rubber pad is connected to the jaw support main body. One side of the long jaw support rubber pad is arc-shaped, and the other opposite side is fitted and installed with the jaw support main body. One side of the short jaw support rubber pad is arc-shaped, and the other opposite side is fitted and installed with the jaw support main body.

[0008] Preferably, the hard liner is made of methyl ester resin material, the soft liner is made of acrylate material, and the silicone pad is made of silicone material.

[0009] Preferably, both of the support rods include a length rod and a screw rod. One end of the length rod is threadedly connected to one end of the screw rod, and the other end of the screw rod is rotatably connected with a reinforcement pile. The user rotates the screw rod relative to the length rod, and the threads on the surface of the screw rod match the threads on the inner wall of the length rod. Therefore, the screw rod rotates and translates relative to the length rod, and the screw rod pushes the reinforcement pile from one side, thereby adjusting the length of the support rod, facilitating the jaw support main body to be fixed at the use position from different distances.

[0010] Preferably, both ends of the two length rods away from the screw rod are fixedly connected to the side opposite to the installation groove, and the support rod is installed on the installation groove through the length rod.

[0011] Preferably, two support pieces are fixedly installed on the jaw support main body, respectively located on one side of the long jaw support rubber pad and one side of the short jaw support rubber pad, and the support pieces block from one side of the jaw support rubber pad.

[0012] Preferably, a sealing plate is snap-fitted at the connection between the installation groove and the support rod. The support rod is characterized by a round rod shape. One end of the support rod is inserted into the jaw support main body and is fitted and fixed therewith, and the sealing plate seals the connection between the jaw support main body and the support rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. By setting the long jaw support rubber pad and the short jaw support rubber pad, the long jaw support rubber pad is suitable for patients with large face shapes, and the short jaw support rubber pad is suitable for patients with small face shapes. Moreover, the jaw support rubber pads with different lengths are convenient for patients with different chin lengths, and the applicable patient population is wide;

[0015] 2. The jaw support main body can be applicable to multiple application scenarios and can meet the use requirements of different large and small imaging fields of view;

[0016] 3. The jaw support main body is installed on the jaw support seat through a support rod. The jaw support main body is convenient to install, easy to adjust, simple in structure, inexpensive, and low in maintenance cost, and can be effectively applied in the fields of oral CBCT and other fields with similar application scenarios. Description of the Drawings

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a bottom view of the present invention;

[0019] Figure 3 is a side view of the present invention;

[0020] Figure 4 is a side view of the support rod of the present invention;

[0021] Figure 5 is a schematic diagram of the installation and application of the jaw support of the present invention in oral CBCT imaging;

[0022] Figure 6 is a diagram of different imaging sizes corresponding to the installation holes of the jaw support seat of the present invention.

[0023] In the figure: 1. Jaw support long rubber pad; 101. Hard liner; 102. Soft liner; 103. Silicone pad; 2. Jaw support main body; 3. Jaw support short rubber pad; 4. Support rod; 41. Length rod; 42. Screw; 43. Reinforcement pile; 5. Enclosure member; 6. Sealing plate; 7. Installation groove; 8. Support piece. Detailed Embodiment

[0024] 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.

[0025] Please refer to Figure 1-6 , the present invention provides a jaw support for oral CBCT, including a jaw support main body 2. A jaw support long rubber pad 1 is laid on the top end of the jaw support main body 2, a jaw support short rubber pad 3 is laid on the bottom end of the jaw support main body 2, an installation groove 7 is opened on one side of the jaw support main body 2, and support rods 4 are fixedly installed at both ends on one side of the inner wall of the installation groove 7. Enclosure members 5 are sleeved at the joints between the jaw support main body 2 and the jaw support long rubber pad 1 and between the jaw support main body 2 and the jaw support short rubber pad 3, and the enclosure members 5 are of an arc structure.

[0026] Both the long jaw support rubber pad 1 and the short jaw support rubber pad 3 include a rigid liner 101, a soft liner 102, and a silica gel pad 103. The top end of the rigid liner 101 is fixedly connected to the bottom end of the soft liner 102, and the top end of the soft liner 102 is fixedly connected to the bottom end of the silica gel pad 103. The bottom end of the rigid liner 101 on the long jaw support rubber pad 1 is connected to the jaw support main body 2, and the bottom end of the rigid liner 101 on the short jaw support rubber pad 3 is connected to the jaw support main body 2. One side of the long jaw support rubber pad 1 is arc-shaped, and the other opposite side is fitted and installed with the jaw support main body 2. One side of the short jaw support rubber pad 3 is arc-shaped, and the other opposite side is fitted and installed with the jaw support main body 2.

[0027] The rigid liner 101 is made of methyl ester resin material, the soft liner 102 is made of acrylate material, and the silica gel pad 103 is made of silica gel material.

[0028] Both of the two support rods 4 include a length rod 41 and a screw rod 42. One end of the length rod 41 is threadedly connected to one end of the screw rod 42. The other end of the screw rod 42 is rotatably connected with a reinforcement pile 43. The user rotates the screw rod 42 relative to the length rod 41. The thread on the surface of the screw rod 42 matches the thread on the inner wall of the length rod 41. Therefore, the screw rod 42 rotates and translates relative to the length rod 41, and the screw rod 42 pushes the reinforcement pile 43 from one side, so as to adjust the length of the support rod 4, facilitating the jaw support main body 2 to be fixed at the use position from different distances.

[0029] Both ends of the two length rods 41 away from the screw rod 42 are fixedly connected to the side opposite to the installation groove 7. The support rod 4 is installed on the installation groove 7 through the length rod 41.

[0030] Two support pieces 8 are fixedly installed on the jaw support main body 2, respectively located on one side of the long jaw support rubber pad 1 and one side of the short jaw support rubber pad 3. The support piece 8 blocks from one side of the jaw support rubber pad.

[0031] A sealing plate 6 is snap-fitted at the connection between the installation groove 7 and the support rod 4. The support rod 4 is characterized by a round rod shape. One end of the support rod 4 is inserted into the jaw support main body 2 and is fitted and fixed therewith, and the sealing plate 6 seals the connection between the jaw support main body 2 and the support rod 4.

[0032] When the embodiment of the present application is in use: The jaw support main body 2, its structural main body is a cube, and there are arc-shaped enclosing members 5 extending on the upper and lower surfaces respectively. The words "8×8", "16×9", and "16×15" are printed on both side surfaces, and "8×8" and "16×9" are in the same column and are both above "16×15", combined with the attached Figure 5, before taking an oral CBCT image, it is necessary to position and clamp the head of the patient. The patient needs to place the chin on the long rubber pad 1 or the short rubber pad 3 of the jaw support. The tip of the chin fits against the arc-shaped retaining member 5 and the support piece 8 protruding from the surface of the jaw support body 2. Then, use a head clamp to clamp the patient's head. For patients with different face shapes and chin lengths, the following adjustments can be made to the installation of the jaw support body 2: For patients with a smaller face and a shorter chin, the side of the jaw support body 2 with the short rubber pad 3 can be inserted upward into the jaw support seat, and then the patient's head can be clamped and positioned; For patients with a larger face and a longer chin, the side of the jaw support body 2 with the long rubber pad 1 can be inserted upward into the jaw support seat, and then the patient's head can be clamped and positioned; For patients with different conditions and different requirements for the area and size of the imaging field of the film, the following adjustments can be made: Referring to the attached Figure 6 , for small-field films with an imaging field of "8×8" or "16×9", the jaw support body 2 can be inserted into two mounting holes in the first row of the jaw support seat through the support rod 4; For large-field films with an imaging field of "16×15", the jaw support body 2 can be inserted into two mounting holes in the second row of the jaw support seat through the support rod 4. The jaw support body 2 is inserted into the mounting holes in the second row below, that is, the position of the jaw support body 2 drops, and the corresponding patient's head will drop. With the positions of the radiation source and the detector unchanged, the conical beam X-ray emitted by the radiation source sweeps across a larger area of the patient's face, that is, the obtained film imaging area is larger, thus obtaining a large-field image.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described 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 invention shall be included in the protection scope of the present invention.

Claims

1. A jaw support for oral CBCT, comprising a jaw support body (2), characterized in that: A long jaw support rubber pad (1) is provided at the top of the jaw support body (2), and a short jaw support rubber pad (3) is provided at the bottom of the jaw support body (2). A mounting groove (7) is provided on one side of the jaw support body (2), and support rods (4) are fixedly installed at both ends of one side of the inner wall of the mounting groove (7). A blocking piece (5) is provided at the connection between the jaw support body (2) and the long jaw support rubber pad (1) and at the connection between the jaw support body (2) and the short jaw support rubber pad (3).

2. The jaw support for oral CBCT according to claim 1, characterized in that: The long jaw support rubber pad (1) and the short jaw support rubber pad (3) both comprise a hard pad (101), a soft pad (102) and a silicone pad (103); the top end of the hard pad (101) is fixedly connected to the bottom end of the soft pad (102); the top end of the soft pad (102) is fixedly connected to the bottom end of the silicone pad (103); the bottom end of the hard pad (101) located on the long jaw support rubber pad (1) is connected to the jaw support body (2); and the bottom end of the hard pad (101) located on the short jaw support rubber pad (3) is connected to the jaw support body (2).

3. The jaw support for oral CBCT according to claim 2, characterized in that: The hard pad (101) is made of a methyl ester resin material, the soft pad (102) is made of an acrylic material, and the silicone pad (103) is made of a silicone material.

4. The jaw support for oral CBCT according to claim 1, characterized in that: The two support rods (4) each comprise a length rod (41) and a screw rod (42); one end of the length rod (41) is threadedly connected to one end of the screw rod (42); and the other end of the screw rod (42) is rotatably connected to a reinforcement pile (43).

5. The jaw support for oral CBCT according to claim 4, characterized in that: One end of the two length rods (41) away from the screw rod (42) is fixedly connected to the side directly opposite to the installation groove (7).

6. The jaw support for oral CBCT according to claim 1, characterized in that: Two support plates (8) are fixedly mounted on the jaw support body (2), and are located on one side of the jaw support long rubber pad (1) and one side of the jaw support short rubber pad (3), respectively.

7. The jaw support for oral CBCT according to claim 1, characterized in that: A sealing plate (6) is mounted on the connection between the mounting groove (7) and the support rod (4).

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