JP2008220606A - Stomatoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stomatoscope with improved convenience, easy for a user to see the interior of his mouth or adjust its angle for this purpose, without using any other hand mirror. <P>SOLUTION: The stomatoscope is characterized in that a mirror to be inserted into the mouth is installed on the end of an arm comprising two outer and inner telescoping tubes via a support shaft with a swivel connection, in that a reflector is installed on the other end of the arm via a support means with a swivel connection, in that a light-emitting means to shed light on the reflector is provided on the arm end provided with the mirror for insertion, and in that an electric source used for the lighting means is provided inside the arm. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an oral mirror that can observe a reflected image in its own mouth reflected on an insertion mirror surface by a reflecting mirror.

2. Description of the Related Art Conventionally, a double-sided mirror that can be used to observe the state of its own oral cavity with one hand is known (see Patent Document 1).
In addition, a portable dental examination mirror in which a light bulb as a light source is provided in front of the mirror is known (see Patent Document 2).
JP 2001-8894 A Japanese Patent Laid-Open No. 10-24016

  According to the technique described in Patent Document 1, the observation mirror B connected to the arm 1 via the universal joint 4 is independently turned, but the intraoral insertion mirror A is fixed to the arm 1. Therefore, the delicate angle adjustment of the mirror A alone cannot be performed at the time of use. Therefore, as a result of having to move the entire arm, it is necessary to further adjust the angle of the movable mirror B.

  Furthermore, in order to observe the vicinity of the upper jaw below the throat, it is necessary to further increase the elevation angle of the mirror A, and it is difficult to cope with the technique described in the above-mentioned document 1 for observing all aspects of the oral cavity.

  Moreover, according to the technique described in Patent Document 2, it was necessary to prepare another mirror in order to observe the inside of the oral cavity by itself.

  Further, the length of the arm 1 of the tooth mirror according to the technique of the above-mentioned Patent Document 1 and the grip handle 7 of the tooth mirror according to the technique of the above-mentioned Patent Document 2 are constant. Has been pointed out that it is bulky during storage because it is attached to the handle 7 at a predetermined elevation angle.

  The present invention has been made in view of the above improvements, and in addition to having a light source, the arm can be expanded and contracted and rotated in accordance with the physical characteristics of the user in order to improve usability. It is an object to provide an oral mirror.

  In order to solve the above problems, the present invention has the following structure. In other words, the oral endoscope according to claim 1 is provided with an insertion mirror at one end of an arm composed of an outer cylinder and an inner cylinder having a slidable telescopic structure via a support shaft provided with a universal connecting portion. The other end of the mouth is provided with a reflecting mirror via a support means provided with a universal connecting portion, and the light emitting means for illuminating the reflecting mirror on the arm end on the side where the insertion mirror is provided, Each is provided with a power supply unit for the issuing means.

  The oral endoscope according to claim 2 is the structure according to claim 1, wherein the outer peripheral side surface of the inner cylinder is provided with an expansion scale shown in the axial direction and / or the outer periphery of the insertion mirror side end of the outer cylinder. The rotation scale shown in the circumferential direction on the top enables adjustment of the arm length consisting of the outer cylinder and the inner cylinder and / or adjustment of the rotation angle of the outer cylinder and the inner cylinder. And

  According to a third aspect of the present invention, in the structure according to the first or second aspect, an auxiliary shaft is provided at the support shaft, and one end of the auxiliary shaft is provided on the back surface of the insertion mirror. The auxiliary shaft is movably locked, and the other end of the auxiliary shaft is fixed to an angle adjusting means provided in the inner cylinder, and the angle is adjusted by an adjusting knob.

  According to the oral mirror of the first aspect, the reflected image in the oral cavity reflected on the insertion mirror surface can be observed by the reflecting mirror and can be observed in a bright field by the light source. In addition, since the insertion mirror and the reflecting mirror can be changed to arbitrary angles by the flexible connection part, it is possible to cope with delicate positioning, and the user can be further improved by adopting an extendable and rotatable arm. It has become possible to improve the convenience of

  Moreover, according to the structure of Claim 2, it becomes possible to grasp | ascertain clearly the degree of expansion-contraction and rotation for every user.

  Moreover, according to the structure of Claim 3, it becomes possible to change the angle of an insertion mirror easily by operating the adjustment knob on an arm.

  Further, since the insertion mirror and the reflection mirror can be folded, there is an advantage that the insertion mirror and the reflection mirror are not bulky during storage.

[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
1 is a perspective view showing an oral endoscope of the present invention, FIG. 2 is a cross-sectional view showing a joint portion, FIG. 3 is an explanatory view showing a universal connecting portion, FIG. 4A is an explanatory view of a power supply portion, and FIG. It is explanatory drawing which showed the scale and the rotation scale.
Illustration of power supply

  In the figure, 1 is an arm, 2 is an insertion mirror, 3 is a reflecting mirror, 4 is a light emitting means, 5 is a power source, 11 is an outer cylinder, 12 is an inner cylinder, 13 is a joint part, 21 is a support shaft, and 31 is a support. Means, 51 is an A holder, 52 is a B holder, 111 and 121 are caps, 211 and 311 are universal connection portions, 511 is a switch, 512 is a battery, 513 is an axial core, 521 is an axial core hole, and S is a notch. .

  The outer cylinder 11, the inner cylinder 12, the support shaft 21, the support means 31, and the universal coupling portions 211 and 311 are obtained by injection-molding general-purpose plastics such as thermoplastic resins such as acrylic resin, polypropylene, vinyl chloride, and polyethylene terephthalate. It is done.

  The joint portion 13 and the caps 111 and 121 use a general-purpose resin such as polyvinyl chloride. By adding an additive, it is molded softer than the above-mentioned general-purpose plastic.

The configuration of the oral endoscope (FIG. 1) according to this embodiment will be described.
The oral mirror according to the present embodiment includes an arm 1 including an outer cylinder 11 and an inner cylinder 12, an insertion mirror 2, and a reflecting mirror 3. Details will be described below.

  The arm 1 includes an outer cylinder 11 and an inner cylinder 12 nesting through a joint portion 13 (FIG. 2). Due to the difference between the material of the inner cylinder 12 molded using a hard material and the material of the joint portion 13 molded using a soft material, stable expansion and contraction and rotation operations can be obtained with an appropriate frictional resistance.

  The insertion mirror 2 is affixed to a mirror surface support portion of the insertion mirror that is formed integrally with the support shaft 21b. The support shaft 21b is fitted to the support shaft 21a and the universal connection portion 211, and the support shaft 21a is It is fixed to the cap 121. The insertion mirror 2 may be a horizontal ellipse and may be a convex mirror in addition to a plane mirror.

  The universal connecting portion 211 is molded integrally with the support shaft 21a and has a spherical concave shape that fits with the spherical convex portion at the end of the support shaft 21b. As a result, the support shaft 21b is rotatable. As shown in FIG. 3A, a U-shaped cut S is provided in the spherical recess of the universal coupling portion 211 so that the shaft is fitted when the support shaft 21b is folded.

  The reflecting mirror 3 is attached to a mirror surface support portion of the reflecting mirror that is molded integrally with the supporting means 31b, and the supporting means 31b is fitted to a free connecting portion 311 that is molded integrally with the supporting means 31a. The support means 31 a grips the outer cylinder 11. The reflecting mirror 3 is circular or elliptical and has a larger mirror surface than the insertion mirror 2.

  The universal coupling portion 311 is molded integrally with the support means 31a and has a spherical concave shape that fits with the spherical convex portion at the end of the support 31b. Thereby, the support shaft 31b becomes rotatable. As shown in FIG. 3B, a U-shaped notch S is provided in the spherical recess of the universal coupling portion 311 so that the shaft is fitted when the support shaft 31b is folded.

  The light emitting means 4 is an LED or other light bulb, but an LED is preferable in consideration of the light emission life. In this embodiment, a white LED with a diameter of 5 mm is used.

The power supply unit 5 will be described with reference to FIG.
The power supply unit 5 includes a cylindrical A holder 51 that houses the battery 512 and a cylindrical B holder 52 that is electrically coupled to the LED 4. A switch 511 is integrally formed on the A holder 51, and an axial core 513 is projected from the positive side and the negative side of the electrode. The B holder 52 includes two axial holes 521, a metal tube (not shown) is provided in the hole, and an anode and a cathode of the LED are joined to each metal tube in each hole so as to be energized.
The shaft center 513 is freely detachable from the shaft hole 521. When the shaft 513 is inserted into the shaft hole 521, the power is turned on and the LED emits light. Further, when the shaft core 513 is removed from the shaft hole 521, the power is turned off and the LED is turned off. The power ON / OFF operation is performed by sliding the A holder 51 back and forth within the inner cylinder 12 with the finger of the switch 511 protruding from the inner cylinder 12.

The degree of expansion / contraction of the inner cylinder 12 is measured by the expansion / contraction scale A, and the degree of rotation is measured by the rotation scale B (FIG. 5). By using the scales A and B in this way, usability is improved.
For example, a person with myopia is short and a person with presbyopia needs to adjust and use the inner cylinder 12 for a long time. However, the length can be adjusted using the scale A according to the user's visual acuity. On the other hand, about the rotation scale B, if the rotation scale is determined corresponding to a predetermined position in the oral cavity, it is used for convenience.
In addition, it is possible to set it as the oral endoscope which provided both of this scale A and B, or the oral mirror provided with any one scale.

  Although not shown, an angle adjustment knob may be provided on the support shaft 21b, which facilitates the alignment of the insertion mirror 2.

[Second Embodiment]
As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment. Below, the modification of the said embodiment is shown as 2nd embodiment.

  FIG. 4B is an explanatory diagram of the power supply unit, and FIG. 6 is a perspective view showing an oral endoscope according to another embodiment of the present invention.

  In the figure, 23 is an auxiliary shaft, 24 is an auxiliary shaft engaging portion, 25 is an angle adjusting means, 26 is an adjustment knob, 231 is an auxiliary bearing, and 53 is a C holder. Other symbols appearing in the figure represent the same objects as in the first embodiment.

The oral endoscope according to the present embodiment adjusts the angle of the insertion mirror 2 with the auxiliary shaft 23.
One end of the auxiliary shaft 23 engages with an auxiliary shaft engaging portion 24 integrally formed on the back surface of the insertion mirror 2, and the other end is inserted into the inner cylinder 12 through the auxiliary bearing 231 provided in the universal coupling portion. It fastens to the knob 26 which comprises the angle adjustment means 25 provided in this. By moving the adjustment knob 26 back and forth in the axial direction, the auxiliary shaft 23 can be pushed out or retracted to adjust the angle of the support shaft 21b. The angle adjusting means may be stepped or stepless.

As shown in FIG. 4B, the power supply unit 5 of the oral endoscope according to the present embodiment is provided at the end of the outer cylinder 11, and the power is turned on / off by the switch 511. The basic structure is the same as in the above embodiment.
The power supply unit 5 includes a cylindrical A holder 51 that houses the battery 512, a cylindrical B holder 52 that is electrically coupled to the LED 4, and a cylindrical C holder 53 described later.
A switch 511 is integrally formed on the A holder 51, and an axial core 513 is projected from the positive side and the negative side of the electrode. Further, in the present embodiment, a C holder 53 is provided on the LED side, the anode and the cathode of the LED are joined, and the inside of the outer cylinder 11 and the inner cylinder 12 is electrically connected to the inside of the axial hole 521 of the B holder 52. It is joined to a metal cylinder (not shown) so as to be energized.
The shaft center 513 is freely detachable from the shaft hole 521. When the shaft 513 is inserted into the shaft hole 521, the power is turned on and the LED emits light. Further, when the shaft core 513 is removed from the shaft hole 521, the power is turned off and the LED is turned off. The power ON / OFF operation is performed by sliding the A holder 51 back and forth within the outer cylinder 11 with the finger of the switch 511 protruding from the inner cylinder 11.

  According to the oral mirror according to the present embodiment, the elevation angle can be easily adjusted to reflect a desired position without directly touching the insertion mirror 2 in the oral cavity.

  According to the oral mirror according to the present invention, the reflection image in the oral cavity reflected in the insertion mirror surface can be visually recognized by the reflecting mirror without preparing a separate hand mirror and without being positioned in front of the mirror. Therefore, it is possible to provide an extremely useful oral mirror that is customary to examine the state of its own oral cavity on a regular basis and that can quickly respond to dental caries and oral diseases.

It is a perspective view which shows the oral endoscope of this invention. It is sectional drawing which shows a joint part. It is explanatory drawing which shows a universal connection part. It is explanatory drawing of a power supply part. It is explanatory drawing which showed the expansion-contraction scale and the rotation scale. It is a perspective view which shows the oral endoscope of different embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Arm 11 Outer cylinder 111 Cap 12 Inner cylinder 121 Cap 13 Joint part 2 Insertion mirror 21 Support shaft 211 Free connection part 22 Adjustment knob 23 Auxiliary shaft 231 Auxiliary bearing 24 Auxiliary shaft engagement part 25 Angle adjustment means 26 Adjustment knob 3 Reflective mirror 31 Support means 311 Universal connection part 4 Light emission means 5 Power supply part 51 A holder 511 Switch 512 Battery 513 Axle core 52 B holder 521 Axle core hole 53 C holder S Notch

Claims (3)

  An insertion mirror is provided at one end of an arm consisting of an outer cylinder and an inner cylinder with a slidable nesting structure through a support shaft provided with a universal connection part, and a support provided with a universal connection part at the other end of the arm. An oral mirror provided with a reflecting mirror through the means, wherein the light emitting means for illuminating the reflecting mirror is provided at the arm end on the side where the insertion mirror is provided, and the power supply unit for the issuing means is provided in the arm. An oral endoscope characterized by comprising.   The outer cylinder is provided with an expansion scale shown in the axial direction on the outer peripheral side surface of the inner cylinder and / or a rotation scale shown in the circumferential direction on the outer periphery of the insertion mirror side end of the outer cylinder. 2. The oral endoscope according to claim 1, wherein the length of the arm composed of the inner tube and the inner tube and / or the rotation angle of the outer tube and the inner tube can be adjusted.   An auxiliary shaft is attached to the support shaft, one end of the auxiliary shaft is locked to an auxiliary shaft engaging portion provided on the back surface of the insertion mirror, and the other end of the auxiliary shaft is fixed to an angle adjusting means provided in the inner cylinder. The oral mirror according to claim 1 or 2, wherein the angle of the insertion mirror is adjusted by an adjustment knob.

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