Corner of mouth retractor

Abstract

The utility model relates to the technical field of medical instruments, in particular to a mouth corner retractor, which comprises a handle and a hook, the handle is provided with a front end and a rear end, the front end of the handle is provided with a necking, the hook is flat and is provided with an inner surface and an outer surface, and the hook faces the inner surface; the hook comprises a connecting end and a free end, the connecting end is connected with the necking, the handle is cylindrical, and the difference between the diameter of the handle and the width of the hook is not more than 10%. The handle of the mouth corner tractor is cylindrical, so that the mouth corner tractor can be conveniently mastered by low-age children, and the mouth corner tractor is prevented from being pulled obliquely or obliquely. The hook is narrow, small in size, small in occupied space in the oral cavity and especially suitable for children or narrow oral cavities, and operation flexibility is improved. A reflective mirror needs to be used in cooperation with clinical shooting of intraoral digital images, the small hook is more beneficial to placement of the reflective mirror and adjustment of the angle of the reflective mirror, and shooting efficiency and accuracy are improved. The edge of the hook is round, so that the mouth traction pain of a patient can be relieved, and the adaptability of the patient is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more particularly, relate to a mouth corner puller. BACKGROUND

[0002] With the rapid development of our country's economy and the continuous improvement of people's living standards, people pay more and more attention to oral health. In the clinical diagnosis and treatment of the oral cavity, it is often necessary to pull the corners of the mouth or the upper and lower lips, so that the soft and hard tissues of the oral cavity that need to be treated are fully exposed in the field of view of the operator, which is convenient for doctors to observe each part of the patient's oral cavity, or to shoot standard high-quality oral clinical digital images, so as to more accurately judge the disease and develop appropriate treatment plan. For young children and patients with limited mouth opening, the mouth corner puller is often used to assist in pulling the corners of the mouth or the upper and lower lips to facilitate the complete exposure of the oral cavity. However, the existing puller has a large volume of hook part, which often occupies too much space in the oral cavity when shooting digital images of the dental arch occlusal surface, making it difficult to insert the mirror, resulting in unsatisfactory image shooting effect. On the other hand, the handle of the existing puller is usually flat, which is tilted by young children when assisting in pulling due to the limited length of their arms, resulting in unsatisfactory shooting effect. SUMMARY

[0003] The utility model aims at overcoming at least one defect (shortcoming) of the prior art, providing a mouth corner puller to solve the problem that the existing mouth corner puller occupies too much space in the oral cavity, making it difficult to insert the mirror, and the flat handle of the existing mouth corner puller is tilted by young children when assisting in pulling.

[0004] The utility model takes the technical scheme that a mouth corner puller, including handle and hook, handle has front end and rear end, its front end is provided with necking, the hook is flat, has inner surface and outer surface, the hook is towards inner surface, the hook includes connecting end and free end, its connecting end is connected with necking, the handle is cylindrical, its diameter and the width of hook difference not more than 10%.

[0005] The device is used for children and patients with limited mouth opening. For young children, the diameter of the handle should be compatible with the width of the hook to facilitate use. If the diameter of the handle is much larger than the width of the hook, it will be difficult for young children to hold it. If the width of the hook is much larger than the diameter of the handle, it will occupy too much space in the oral cavity, affecting the shooting of digital images. Therefore, the maximum width of the handle is set to differ from the width of the hook by no more than 10%. The handle is set to be cylindrical, so that young children will not tilt when assisting in pulling, facilitating the shooting of digital images.

[0006] Further, the cross section of the hook is concave to the inner surface.

[0007] In use, the hook is used to hook the lip muscle, the inner surface of the hook is in contact with the muscle of the side of the lip, the cross section of the hook is set as a concave arc to the inner surface, which can make the inner surface of the hook fit the muscle of the lip more closely, thereby improving the comfort of the user. On the other hand, setting the cross section of the hook as concave can improve the strength of the hook.

[0008] Further, the free end of the hook is arc-shaped.

[0009] In use, the free end of the corner puller will be against the soft tissue in the oral cavity, setting the free end of the hook as arc-shaped can avoid the straight edge formed by the free end of the hook scratching the lip and cheek tissue of the user, or causing discomfort to the user, thereby improving the comfort of the user.

[0010] Further, the ratio of the diameter to the length of the handle is 0.1-0.2.

[0011] If the ratio of the diameter to the length of the handle is too small, the handle is too long and thin, and the user cannot hold it firmly; if the ratio of the diameter to the length of the handle is too large, the handle is too short and thick, which is difficult for young children to hold and is not comfortable.

[0012] Further, the diameter of the handle is 1.5-3.0 cm.

[0013] Different users have different sizes of hands, and setting the diameter of the handle to be 1.5-3.0 cm can be suitable for users of various ages.

[0014] Further, the width of the necked portion is smaller than the width of the hook, and a reinforcing plate is arranged at the necked portion.

[0015] The tissue of the corner is sensitive, and excessive pulling force can cause discomfort or even pain to the patient, and the necked device can flexibly adjust the pulling force of the hook according to the specific situation, so as to avoid damage to the corner of the patient due to excessive pulling force, or to avoid the inability to achieve the ideal effect due to insufficient pulling force. Arranging a reinforcing plate at the necked portion can increase the structural strength of this portion, and can also share part of the load borne by the necked device, so that it can bear greater external force. In addition, the necked portion can also play a role in adjusting the angle between the handle and the hook, so that the hook will not tilt when the low-age children assist in pulling.

[0016] Further, the distance between the free end of the hook and the front end of the corner hook is 0.8-1.5 cm.

[0017] The hook is used to hook the lip muscle, so it needs a certain length, if the length is too short, the lip muscle can slip out of the hook. If the length of the hook is too long, the front end will occupy the limited space in the oral cavity, thereby affecting the placement of the mirror.

[0018] Further, the handle is provided with an anti-skid structure.

[0019] The anti-skid structure on the handle can increase the friction, and the user, especially the young children, can hold it more firmly.

[0020] Further, the thickness of the hook is 0.2-0.6 cm.

[0021] When the corner puller is used, the hook will be subjected to a certain tension, so the hook needs a certain strength and rigidity, if the thickness is too small, it may be deformed or broken during use, if the thickness is too large, it will occupy a certain oral cavity space, affecting the shooting of digital images.

[0022] Further, the opening width of the hook is 1.0-2.5 cm.

[0023] The hook is used to hook the lip muscle, so the opening should have a certain width to facilitate the entry of the lip muscle, but if the opening width of the hook is too large, the lip muscle is easy to slip out of the hook, so the opening width should be set to 1.0-2.5 cm.

[0024] Compared with the prior art, the handle is provided in a columnar shape, so that it is convenient for low-age children to master, and the handle is prevented from being pulled obliquely or skewly. The diameter of the handle and the width of the hook are set to be within a difference of 10%, so that the size of the handle and the hook is matched, and it is convenient for a user, especially a low-age child, to use. The hook of the mouth corner puller is relatively narrow, occupies less intraoral space, is favorable for placement of a mirror and adjustment of a mirror angle, and improves efficiency and accuracy of intraoral digital image shooting. A necking is arranged between the handle and the hook, the size of a pulling force can be adjusted, user's discomfort caused by excessive pulling force is prevented, and the necking is also arranged to adjust the angle between the hook and the handle, so that the low-age child is further prevented from pulling obliquely or skewly. Meanwhile, a reinforcing plate is arranged at the necking, so as to increase the structural strength of the necking and share part of the load borne by the necking, so that the necking can bear greater external force. The cross section of the hook is recessed inward to form an arc shape, and the free end of the hook is also arranged in an arc shape, so as to be matched with soft tissues in the oral cavity and improve user's comfort. The thickness of the hook is 0.2-0.6cm, so as to occupy less intraoral space while meeting the strength requirement. The diameter of the handle of the mouth corner puller is 1.5-3.0cm, so as to be suitable for users of different ages, and the diameter and the length of the handle have a certain ratio, so as to be more comfortable for the user to hold. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model.

[0026] Figure 2 It is a front view of the utility model.

[0027] Figure 3 It is a left side view of the utility model. DETAILED DESCRIPTION

[0028] The drawings of the utility model are only used for illustrative description, and cannot be understood as a limitation on the utility model. In order to better illustrate the following embodiments, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some known structures and their descriptions in the drawings can be omitted.

[0029] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0030] As Figure 1As shown, a corner puller comprises a handle 1 and a hook 3, the handle 1 has a front end and a rear end, the front end is provided with a neck 2, the hook 3 is flat, comprising a connecting end 31 and a free end 32, the connecting end 31 is connected with the neck 2, the handle 1 is cylindrical, the diameter D is not more than 10% different from the width d of the hook.

[0031] Specifically, the diameter D of the handle 1 is preferably 1.5-3.0 cm, suitable for users of different ages. The ratio of the diameter D to the length L of the handle 1 is 0.1-0.2, to facilitate the grip of young children. And the handle 1 is provided with an anti-skid structure 11, such as anti-skid bumps.

[0032] The neck 2 is arranged between the handle 1 and the hook 3, and the width of the neck 2 is less than the diameter D of the handle 1 and the width d of the hook. The neck 2 can adjust the size of the pulling force and the angle between the handle 1 and the hook 3, prevent the pulling force from being too large to cause discomfort to the user and the young children from being pulled or tilted when pulling. The neck 2 is also provided with a plurality of reinforcing plates 21 to enhance the structural strength of the neck 2 and share part of the load borne by the neck 2, so that it can withstand greater external force.

[0033] The hook 3 is flat, and the thickness T is preferably 0.2-0.6 cm, so that it can occupy as little space as possible in the oral cavity while ensuring a certain strength. The hook 3 has an inner surface 33 and an outer surface 34, the hook is directed to the inner surface 33, and the opening width D1 is 1.0-2.5 cm. The cross section of the hook 3 is concave to the inner surface 33 in the form of an arc, so as to fit the side of the lip muscle and improve the comfort of the user. The free end 32 of the hook 3 is also arc-shaped to avoid discomfort or injury to the user when it contacts with the soft tissue in the oral cavity, and the distance L1 between the free end 32 and the front end of the corner puller is 0.8-1.5 cm.

[0034] Obviously, the above embodiments of the present application are only examples for clearly illustrating the technical scheme of the present application, and are not a limitation on the specific embodiments of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A corner puller comprising a handle and a hook, the handle having a front end and a rear end, the front end of the handle being provided with a neck, the hook being flat and having an inner surface and an outer surface, the hook facing the inner surface; the hook comprising a connecting end and a free end, the connecting end of the hook being connected to the neck, characterized in that, The handle is cylindrical, and the diameter of the handle is not more than 10% different from the width of the hook.

2. A corner retractor according to claim 1, wherein, The cross section of the hook is concave to the inner surface in an arc shape.

3. A corner retractor according to claim 1, wherein, The free end of the hook is arc-shaped.

4. A corner retractor according to claim 1, wherein, The ratio of the diameter to the length of the handle is 0.1-0.

2.

5. A corner retractor according to claim 1 wherein, The diameter of the handle is 1.5-3.0 cm.

6. A corner retractor according to claim 1 wherein, The width of the neck is less than the width of the hook, and a reinforcing plate is arranged at the neck.

7. A corner retractor according to claims 1 to 6, characterised in that The distance between the free end of the hook and the front end of the corner pull is 0.8-1.5 cm.

8. A corner retractor according to claim 7, wherein, An anti-skid structure is arranged on the handle.

9. A corner retractor according to claim 7, wherein, The thickness of the hook is 0.2-0.6 cm.

10. A corner retractor according to claim 7, wherein, The opening width of the hook is 1.0-2.5 cm.

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