Oral cavity photography retractor convenient for patient to self-adjust

Abstract

The utility model relates to an oral cavity photography drag hook convenient for a patient to self-adjust, and belongs to the technical field of medical instruments. The photographing drag hook comprises a fixing plate, adjusting plates, adjusting rods, a positioning plate, adjusting bolts and a holding rod, the adjusting plates are hinged to the two sides of the fixing plate through pin shafts respectively, the adjusting rods are hinged to the two adjusting plates respectively, the other ends of the adjusting rods are hinged to the positioning plate, the positioning plate is slidably sleeved with the holding rod, one end of the holding rod is fixed to the fixing plate, and the other end of the holding rod is fixed to the adjusting bolts. An adjusting bolt is arranged in the middle of the holding rod through threads and makes contact with a positioning plate. The external expansion angle of the drag hook can be adjusted, a patient can operate with one hand to expand the labial surface during use, the force can be controlled by himself / herself while comprehensive photography is guaranteed, and the overall comfort level is high.

Description

Technical Field

[0001] The utility model relates to an oral photography retractor which is convenient for patients to adjust themselves, and belongs to the technical field of medical equipment. Background Art

[0002] Oral photography is an important part of the treatment process such as oral orthodontics or oral restoration. Photography is used to strengthen the record of case data, and photographic images are used to analyze cases and design plans. Various basic images need to be taken in all oral departments. During oral photography, a photographic retractor is needed to open the lip surface to achieve the purpose of complete dentition photography. An oral photography retractor in the prior art, such as an oral photography retractor disclosed in Chinese patent document CN215192516U, includes a lip surface soft tissue fitting part, the lip surface soft tissue fitting part includes a fitting part body and a supporting part arranged on the periphery of the fitting part body; the fitting part body is provided with one or more through holes; and also includes a retractor handle part matched with each of the through holes, the retractor handle part includes a lip pulling hook part and a gripping part, the gripping part is connected to the fitting part body through the through hole; the gripping part is provided with a retaining barb for fixing the connecting part and the fitting part body.

[0003] The existing photography retractor has the following defects: first, the medical staff needs to hold the retractor to open the lip surface, which can easily cause discomfort to the patient; second, it needs to be held with both hands when in use, which is inconvenient to operate; third, the opening angle cannot be adjusted, and the lip surface can only be opened with a fixed arc surface. For this reason, the utility model is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides an oral photography retractor that is convenient for patients to adjust by themselves. The outward expansion angle of the retractor can be adjusted. When in use, the patient can operate it with one hand to open the lip surface, and control the strength by himself while ensuring comprehensive photography, with high overall comfort.

[0005] The technical solution of the utility model is as follows:

[0006] An oral photography retractor which is convenient for patients to adjust themselves comprises a fixing plate, an adjusting plate, an adjusting rod, a positioning plate, an adjusting bolt and a holding rod, wherein the fixing plate is hinged with adjusting plates on both sides through pins, the two adjusting plates are hinged with adjusting rods respectively, the other end of the adjusting rod is hinged to the positioning plate, the positioning plate is slidably mounted on the holding rod, one end of the holding rod is fixed to the fixing plate, an adjusting bolt is threadedly arranged in the middle of the holding rod, and the adjusting bolt contacts the positioning plate.

[0007] Preferably, according to the present invention, the fixing plate and the adjusting plate are both arc-shaped plates.

[0008] Preferably, according to the utility model, elastic barrier layers are provided on both sides of the fixed plate and the adjusting plate respectively. The design of the elastic barrier layer has two effects: one is to prevent the fixed plate and the adjusting plate from directly contacting the oral cavity, and the elastic barrier layer is used as a buffer to improve comfort; the other is to prevent the gap between the adjusting plate and the pin shaft from clamping the lips and injuring the patient.

[0009] Preferably, according to the utility model, a positioning block is fixedly provided on one side of the middle thread of the holding rod close to the fixing plate to limit the movement distance of the adjusting bolt.

[0010] Preferably, according to the present invention, the bottom of the gripping rod is arc-shaped, which is convenient for gripping.

[0011] Preferably, according to the present invention, wings are symmetrically arranged on the adjusting bolt to facilitate adjustment of the adjusting bolt.

[0012] Preferably according to the present invention, a spring is provided between the two adjusting rods.

[0013] When in use, the adjusting bolt is adjusted according to the size of the patient's mouth. When the adjusting bolt moves to one side of the fixed plate, the opening angle of the adjusting plate is reduced. When the adjusting bolt moves to the other side, the two adjusting rods are contracted close to each other under the action of the spring force, thereby driving the opening angles of the adjusting plates on both sides to expand (when the adjusting bolt drives the positioning plate to move to the positioning block, the contact side of the fixed plate and the adjusting plate just fits together, and the adjusting plate cannot continue to reduce the opening angle. Therefore, after the adjusting bolt moves in the opposite direction, the adjusting rod and the positioning plate can only move with the adjusting bolt under the action of elastic force, driving the opening angle of the adjusting plate to expand). After the adjustment plate is adjusted, the patient holds the holding rod, puts the fixed plate and the adjusting plate into the mouth, adjusts the flipping angle of the fixed plate and the adjusting plate, and then adjusts the exposed area of ​​the dentition. After meeting the photography requirements, the patient stops moving and photography is performed. During the whole process, the patient completes the adjustment by himself, and the force is controllable, which improves the patient's comfort.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides an oral photography retractor which is convenient for patients to adjust themselves. The outward expansion angle of the retractor can be adjusted. When in use, the patient can operate it with one hand to open the lip surface, and the strength can be controlled by the patient himself while ensuring comprehensive photography, and the overall comfort is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the fixed plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the gripping rod of the utility model;

[0019] Among them: 1. fixing plate; 2. adjusting plate; 3. pin shaft; 4. elastic barrier layer; 5. adjusting rod; 6. positioning plate; 7. positioning block; 8. adjusting bolt; 9. holding rod; 10. thread; 11. wing; 12. spring. DETAILED DESCRIPTION

[0020] The present invention will be further described below through embodiments and in conjunction with the accompanying drawings, but is not limited thereto.

[0021] Embodiment 1:

[0022] like Figure 1-3 As shown, the present embodiment provides an oral photography retractor which is convenient for patients to self-adjust, including a fixing plate 1, an adjusting plate 2, an adjusting rod 5, a positioning plate 6, an adjusting bolt 8 and a holding rod 9, wherein the fixing plate 1 is hinged with the adjusting plates 2 on both sides through the pin shaft 3, and the two adjusting plates 2 are hinged with the adjusting rod 5 respectively, and the other end of the adjusting rod 5 is hinged to the positioning plate 6, and the positioning plate 6 is slidably mounted on the holding rod 9, and one end of the holding rod 9 is fixed to the fixing plate 1, and the middle part of the holding rod 9 is provided with an adjusting bolt 8 through a thread 10, and the adjusting bolt 8 contacts the positioning plate 6.

[0023] The fixing plate 1 and the adjusting plate 2 are both arc-shaped plates, and the connection position between the holding rod 9 and the fixing plate 1 and the connection position between the adjusting rod 5 and the adjusting plate 2 are both at the upper part. Figure 2 As shown, leaving the lower area for lip expansion.

[0024] Elastic barrier layers 4 are respectively provided on both sides of the fixed plate 1 and the adjusting plate 2. The design of the elastic barrier layer has two effects: one is to prevent the fixed plate and the adjusting plate from directly contacting the oral cavity, and use the elastic barrier layer as a buffer to improve comfort; the other is to prevent the gap between the adjusting plate and the pin shaft from clamping the lips and injuring the patient.

[0025] A positioning block 7 is fixedly arranged on one side of the middle thread of the holding rod 9 close to the fixing plate to limit the movement distance of the adjusting bolt.

[0026] The bottom of the gripping rod 9 is arc-shaped, which is convenient for gripping.

[0027] The adjusting bolt 8 is symmetrically provided with wings 11 to facilitate adjustment of the adjusting bolt.

[0028] A spring 12 is arranged between the two adjustment rods 5 .

[0029] When in use, the adjusting bolt is adjusted according to the size of the patient's mouth. When the adjusting bolt moves to one side of the fixed plate, the opening angle of the adjusting plate is reduced. When the adjusting bolt moves to the other side, the two adjusting rods are contracted close to each other under the action of the spring force, thereby driving the opening angles of the adjusting plates on both sides to expand (when the adjusting bolt drives the positioning plate to move to the positioning block, the contact side of the fixed plate and the adjusting plate just fits together, and the adjusting plate cannot continue to reduce the opening angle. Therefore, after the adjusting bolt moves in the opposite direction, the adjusting rod and the positioning plate can only move with the adjusting bolt under the action of elastic force, driving the opening angle of the adjusting plate to expand). After the adjustment plate is adjusted, the patient holds the holding rod, puts the fixed plate and the adjusting plate into the mouth, adjusts the flipping angle of the fixed plate and the adjusting plate, and then adjusts the exposed area of ​​the dentition. After meeting the photography requirements, the patient stops moving and photography is performed. During the whole process, the patient completes the adjustment by himself, and the force is controllable, which improves the patient's comfort.

[0030] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. An oral photography retractor that is convenient for patients to adjust themselves, characterized in that: It includes a fixed plate, an adjusting plate, an adjusting rod, a positioning plate, an adjusting bolt and a holding rod, wherein the adjusting plates are hinged on both sides of the fixed plate through pins, the two adjusting plates are hinged with adjusting rods respectively, the other end of the adjusting rod is hinged to the positioning plate, the positioning plate is slidably mounted on the holding rod, one end of the holding rod is fixed to the fixed plate, an adjusting bolt is threadedly arranged in the middle of the holding rod, and the adjusting bolt contacts the positioning plate.

2. The oral photography retractor that is convenient for patients to adjust themselves according to claim 1, characterized in that: The fixed plate and the adjusting plate are both arc-shaped plates.

3. The oral photography retractor that is convenient for patients to adjust themselves according to claim 2, characterized in that: Elastic barrier layers are respectively arranged on both sides of the fixed plate and the adjusting plate.

4. The oral photography retractor that is convenient for patients to adjust themselves according to claim 3, characterized in that: A positioning block is fixedly arranged on one side of the thread in the middle of the holding rod close to the fixing plate.

5. The oral photography retractor that is convenient for patients to adjust themselves according to claim 1, characterized in that: The bottom of the grip rod is arc-shaped.

6. The oral photography retractor that is convenient for patients to adjust themselves according to claim 1, characterized in that: The adjusting bolt is symmetrically provided with wings.

7. The oral photography retractor that is convenient for patients to adjust themselves according to claim 1, characterized in that: A spring is arranged between the two adjustment rods.

Images