JPH0742406Y2 - Mouth opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouth widening device used for medical examinations and photographing of the oral cavity.

[0002]

2. Description of the Related Art Conventionally, there are the following known ones as a mouth angle expander. (A) There is a hook angle hook with a hook at the tip of the handle, and two hook angle hooks are used to hook on the left and right corner edges, respectively.
The assistant pulls the handle to the left and right with both hands to open the corner of the mouth. (B) A spring arm is inserted into the oral cavity, and the elasticity of this spring arm is used to cause the two mouth angle hooks to open to the left and right to open the lips sideways. (C) As shown in Japanese Utility Model Publication No. 56-33524, hooking a corner angle hook on both sides of the lip, exposing a substantially U-shaped spring arm to the outside of the jaw, and the spring action causes the corner angle hook to move left and right. It pushes your lips to the left and right and pushes them open.

[0003]

However, in the case of the above (a), two horn hooks and one assistant are required to open the corners of the mouth, resulting in poor workability. Further, in the case of (b), since the spring arm is present in the back of the mouth, it interferes with medical examination and photographing in the mouth, and there is a feeling of foreign matter in the oral cavity, which causes pain to the patient. Further, in the case of (c), it is difficult to perform medical examinations and photographing while keeping a wide field of view in the oral cavity because the mouth angle is opened by utilizing the elasticity of the spring arm.

[0004]

[Means for Solving the Problems] The present invention is based on the above (a).
The purpose is to solve the drawbacks of (b) and (c), and more specifically, the concave surfaces of the two mouth corner hooks 1 and 2 are arranged so as to face each other outward, and these mouth corner hooks 1, 2 In the mouth angle spreader in which both ends of a substantially U-shaped spring arm 3 are integrally formed at the lower end of the outer surface portion of No. 2, flat elastic ears 4, 4 are connected to the side portions of the outer surface of the mouth hooks 1, 2. However, cord holes 5 and 5 are provided at the ends of the flat elastic ears 4 and 4, and the support cord can be inserted into the cord holes 5 and 5, so that the mouth angle expander is characterized. Is provided.

[0005]

In the mouth angle spreader of the above (c), the concave surfaces of the two mouth angle hooks are arranged so as to face each other, and both ends of the substantially U-shaped spring arm are provided at the lower ends of the outer surface portions of these mouth angle hooks. It is formed integrally. The mouth corner expander having such a configuration can be attached to the oral cavity of a patient as follows. That is, the corner hook is hooked on both sides of the lip, the substantially U-shaped spring arm is exposed to the outside of the jaw, and the spring action pushes the corner hook left and right to push the lip left and right.

Then, the teeth, gums and the like in the mouth are exposed, so that medical treatment, surgery, photographing and the like can be performed. At this time, since the spring arm is located in the lower front part of the jaw outside the oral cavity and does not exist inside the oral cavity, the inner part of the oral cavity can be seen better and no assistants are required for medical examination, surgery, photographing, etc. Can be done without giving. However, in the structure and operation of the mouth angle expander of the above (c), since the mouth angle is opened by utilizing the elasticity of the substantially U-shaped spring arm as described above, it is difficult to maintain a wide field of view in the oral cavity. Therefore, it is not possible to effectively perform medical examinations and photographing in the oral cavity.

Therefore, in the present invention, the concave surfaces of the two square hooks are arranged so as to face each other, and both ends of the substantially U-shaped spring arm are integrally connected to the lower ends of the outer surfaces of these square hooks. In the mouth corner expander having the structure described above, a flat plate-shaped elastic ear portion is connected to a side portion of the outer surface portion of the mouth corner portion. In addition, a cord hole is provided in the flat elastic ear of the mouth widening device of the present invention, and a support cord is inserted through the cord hole, and the cord is tied to the patient's face so that it can be attached and used. Therefore, when the caregiver pulls the flat elastic ear portion backward, the elasticity of the flat elastic ear portion is added to the spring arm, and as a result, the flat elastic ear portion supplements the opening of the mouth corner due to the spring action of the spring arm. Therefore, the oral cavity can be greatly opened and expanded, and the inside of the oral cavity can be opened and held in a wide visual field. Therefore, it is possible to more advantageously perform the medical examination and photographing of the oral cavity, for example, the medical examination and photographing of the molars.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of the present invention, FIG. 2 is a front view of the present invention, FIG. 3 is a bottom view of the present invention, FIG. 4 is a front view of a used state, and FIG. 5 is a side view of a used state. The mouth corner hooks 1 and 2 are provided with outer surface portions 1b and 2b formed in a substantially C shape.
b and 2b, inner surface portions 1c and 2c formed in a substantially C shape, which are spaced apart from each other and facing each other, are provided, and connection portions 1a and 2a connecting the inner surface portions 1c and 2c inside the C shape are arranged. It is installed and formed.

Then, the mouth corner hooks 1 and 2 are arranged so as to face each other according to the mouth corner, and the spring arms 3 are formed in a substantially U-shape and have a rectangular cross section under the outer surface portions 1b and 2b of the mouth corner hooks 1 and 2.
Both upper end portions of which are connected to each other, and further the outer surface portion 1 of the mouth corner hooks 1 and 2.
A flat mouth elastic spreader 4 is provided on both sides of b and 2b to form a mouth corner expander. The mouthpiece hook 1, the spring arm 3 and the plate-shaped elastic ear portion 4 can be formed of heat-resistant or elastic resin such as polycarbonate or nylon. A string hole 5 is provided at an end of the flat elastic ear 4, and a support string 6 is inserted into the hole 5, and the support string 6 is tied to the patient's face and attached. By doing so, the intended purpose of use can be achieved.

[0010]

As described above, according to the present invention, the outer surface portion is formed in a substantially C shape, the inner surface portion is formed in a substantially C shape, which is separated from the outer surface portion, and the outer surface portion and the inner surface portion are C-shaped. It is composed of a substantially U-shaped spring arm having a rectangular cross section, which is provided with a square hook made of a connecting portion to be connected on the inside of the letter-shape so as to be opposed to each other according to the angle of the mouth, and which is continuously connected to the lower portion of the outer surface portion of the hook. In the mouth angle expander, flat plate-shaped elastic ears are continuously provided on the side of the outer surface of the corner of the mouth, and a string insertion hole is provided at an end of the flat plate-shaped elastic ear part 4, and a support string is provided in the string insertion hole. Since it is configured to be attached and used by tying it to the patient's face through the insertion, it is possible to control the pressure on the corner of the mouth by the elasticity of the flat elastic ears, and thus the patient's wide field of view without causing pain. It is possible to efficiently perform medical examinations and photographing in the oral cavity,
And the intended purpose of use can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view of the present invention.

FIG. 3 is a bottom view of the present invention.

FIG. 4 is a front view of a usage state.

FIG. 5 is a side view of a usage state.

[Explanation of symbols]

 1 Mouth corner hook 2 Mouth corner hook 1b, 2b Outer surface part 1c, 2c Inner surface part 1a, 2a Connection part 3 Spring arm 4 Flat elastic ear part 5 String hole 6 Support string

Claims (1)

[Scope of utility model registration request] 1. The concave surfaces of the two square hooks 1 and 2 are arranged so as to face each other, and both end portions of a substantially U-shaped spring arm 3 are integrally formed on the lower ends of the outer surfaces of these square hooks 1 and 2. In the formed mouth angle spreader, the flat elastic ears 4, 4 are provided on the side portions of the outer surface portions of the mouth angle hooks 1, 2.
4 are connected in series, and string holes 5 are provided at the ends of the flat elastic ears 4 and 4.
5 is provided, and a support cord can be inserted into the cord holes 5 and 5, and the mouth angle spreader is characterized in that.