JP3002561U - Grasping structure of dental visual equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a grasping portion such as an intraoral video camera that facilitates observation of the inside of the oral cavity at the time of examination in a dental clinic or the like, and observation of the inside of the oral cavity before and after treatment. A tip portion 3b of a camera head portion 3 of a video camera for photographing teeth and the like is bent with respect to a main body, and an outer shape of a grip portion 3a of the camera head portion 3 is polygonal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a dental visual device such as an intraoral video camera that can easily observe the inside of the oral cavity at the time of examination at a dental clinic, etc., and the teeth and surrounding soft tissues in the oral cavity before and after the treatment. The present invention relates to the structure of the grip portion.

[0002]

[Prior art]

 Conventionally, most intraoral video cameras used in dental clinics and the like have a linear camera head as shown in FIG. 5, and therefore, for example, when photographing an anterior tooth, the When shooting at a right angle with the camera, the camera itself is in a substantially horizontal state with the tooth, but as shown by the two-dot chain line in the figure, when shooting the distal and mesial parts of the tooth, the camera is in horizontal position X. The video camera body must be moved to the Y position when photographing the distal part of the tooth from position 3, or the video camera position must be moved to the Z position when shooting the mesial part of the tooth.

In addition to the above-mentioned radiography of the occlusal surface portion, the mesial portion, and the distal portion of the tooth, the regular teeth are not evenly arranged, and the orientations of the teeth are not uniform, as shown in the figure. When the tooth is in the T1 state, the camera head must be moved to the Y position, and when the tooth is in the T2 state, the camera head must be moved to the Z position. When moving the camera head to a tooth with a different direction of growth in this way, it is necessary to move the camera head subtly, so it is difficult to shoot in a narrow oral cavity with the conventional one. It was a burden on me.

Therefore, if the video camera is a straight line camera, it is necessary for the practitioner's hand to greatly move the camera itself in accordance with the direction of the teeth. It was a strain on my skill. Most grips have a cylindrical shape, and when shooting from the side or at an angle, it is necessary to rotate the camera head left and right due to the movement of the practitioner's finger. It was not easy to take a picture of a tooth immediately from the side or at an angle, such as when it was difficult to rotate when it was rotated left and right.

Further, although there is a dental treatment device, for example, a device in which an imaging device is integrally incorporated in a hunt piece or the like having a bent tip, since the structure is mainly for treatment, a light irradiation position and a camera are used. The imaging direction is not in a state in which the teeth can be imaged accurately, and as with the above, these treatment devices have a cylindrical grip, so it is not possible to realize the subtle movement of the video camera at the fingertips. There was a drawback.

[0006]

[Problems to be solved by the device]

 As described above, in the conventional grip structure of the dental visual device, since the camera head has a linear shape, it is not easy to move the imaged part in the anteroposterior direction with respect to the tooth to take an image. . For example, when shooting a posterior tooth located in the back of the tooth, if the camera head has a linear shape, the movement of the camera head that approaches the tooth during the operation of moving to the shooting posterior position for imaging. Since it is difficult for the practitioner to move the finger with a slight movement of the fingertip, if the camera head has a linear shape, a large movement of the camera head is necessary in the process of properly positioning it on the tooth to be imaged.

Further, since the hide camera has a straight line shape, the camera head cannot be stably held with the ring finger at the position where the tooth is photographed, which may cause camera shake. Furthermore, if you try to move it laterally or diagonally, the cross-sectional shape of the outer shape is circular, so there is a drawback that the gripping part slips and you can not move it well. However, there is a problem in that it puts a strain on the arms and fingers, and there is a drawback that a clear image cannot be obtained due to camera shake.

[0008]

Means for Solving the Problems The grip structure of the dental visual device according to the present invention is intended to achieve the above-mentioned object. As a means therefor, a tip of a camera head of a video camera for photographing teeth etc. is used. The section is bent with respect to the main body, and the cross-sectional shape of the outer shape of the grip portion of the camera head section is polygonal.

[0009]

[Action]

 In the structure of the grip portion of the dental visual device according to the present invention configured as described above, when photographing the anterior tooth in the oral cavity, the grip portion is held by the finger, and the imaging unit is moved by a slight finger movement with respect to the tooth. The teeth can be easily photographed so that they are at a right angle, and the practitioner can easily understand the facing positional relationship between the tip of the camera head and the teeth in the oral cavity.Therefore, when photographing a part such as a molar, The gripper can be delicately moved with a finger to easily take an image at right angles to the molar teeth, and the subtle movement of the imaging unit can be easily obtained.

Further, since the tip of the camera head is bent, it is possible to hold the camera head on the middle finger and to rest the ring finger or the like on the face or teeth as appropriate. Disappears. Furthermore, since the grip portion has a polygonal outer shape, the practitioner can easily rotate the camera head with his fingertip and move it to the imaging site without feeling tired of the arm.

[0011]

【Example】

 Hereinafter, an embodiment of a grip portion structure of a dental visual device according to the present invention will be described with reference to the drawings. FIG. 1 is a side view of an intraoral video camera according to the present invention, FIG. 2 is a sectional view of an intraoral video camera according to the present invention, and FIGS. 3 and 4 are gripping portions of the first and other embodiments. FIG. 5 shows a side view of a conventional intraoral video camera, respectively.

Reference numeral 1 is an intraoral video camera body, 2 is an imaging guide guided by an optical fiber, 3 is a camera head, 3a is a gripping portion, and 3b is a camera head tip portion. An O-ring 4 is attached to either the intraoral video camera body 1 or the camera head 3. Therefore, the camera head 3 is detachably attached to the intraoral video camera body.

Further, since the O-ring 4 has a diameter smaller than that of the groove formed by the intraoral video camera body 1 and the camera head 3, the O-ring 4 causes an appropriate friction, so that the camera is The head 3 is rotatable with respect to the intraoral video camera body 1. Therefore, the camera head 3 can be easily applied to the imaging irradiation site with the hand. Reference numeral 5 is an illuminating device, and reference numeral 5a is an illumination guide such as an optical fiber that guides the image pickup portion of the camera head tip portion 5a. Reference numerals 6 and 7 are refraction plates such as prisms for refracting the image to guide the image to the imaging guide. The image of the tooth is captured by the refraction plate 7, and the image of the tooth is displayed on the imaging guide through the refraction plate 6. Is sent.

Reference numeral 8 is an image pickup unit, 9 is a camera head, and 10 is a guide for guiding shooting and illumination. Since it is configured as described above, it does not require a large arm movement and has a polygonal outer shape as compared with the conventional one as shown in FIG. Since it can be rotated, it can be moved to the imaging site.

In the above-described embodiment, the outer shape of the grip portion 3a is octagonal or dodecagonal, but any polygonal shape may be used. Further, in the present embodiment, the image guiding means uses the refraction plate such as the prism, but the reflecting means such as the mirror or the image focusing means such as the aligning means may be used. Therefore, the shooting guide means and the illumination guide means do not matter.

[0016]

[Effect of device]

 With the configuration of the present invention, when imaging each part of the anterior tooth or molar in the oral cavity, the tip of the camera head is bent, so it is possible to hold the finger at an appropriate part, which causes hand shake. You can take stable shots without any trouble. In addition, the imaging unit in the oral cavity can be easily moved, and it can be positioned at the imaging site with a little hand movement, and desired imaging can be performed.

Further, since the cross-sectional shape of the outer shape of the grip portion of the camera head part is polygonal, not only the delicate movement of the operator's fingertip is possible, but also the operator recognizes the rotation angle. Since it is easier to do, it is possible to check the fine parts of the tooth.

[0018]

[Brief description of drawings]

FIG. 1 is a side view of an intraoral video camera of the present invention.

FIG. 2 is a sectional view of the intraoral video camera of the present invention.

FIG. 3 is a sectional view of a grip portion according to a first embodiment of the present invention.

FIG. 4 is a sectional view of a grip portion according to another embodiment of the present invention.

FIG. 5 is a side view of a conventional intraoral video camera.

[Explanation of symbols]

 1 intraoral video camera main body 2 shooting guide 3 camera head 3a grip 3b camera head tip 4 O-ring 5a lighting guide 6, 7 refraction plate

Claims (1)

[Scope of utility model registration request] 1. A grip portion structure for a dental visual device in which a tip portion of a camera head is bent and a cross-sectional shape of the grip portion is polygonal.