JP2017176469A - Mouth opening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mouth opening device that enables an area of a mouth opening to be freely changed without difficulty, and is compatible with a wide range of people regardless of age and a gender gap.SOLUTION: A mouth opening device adopts next means. In the first, the mouth opening device has upper and lower tooth rest parts and an interval adjustment device 13 of the upper and lower tooth rest parts. In the second, the interval adjustment device 13 is equipped with a fixed holder 11 in the lower end of a ratchet bar 2, is equipped with a sliding holder 7 in the upper part, lifts the sliding holder 7 by the operation of a sizing lever 70, and enables lowering by the operation of a release pin 71. In the third, an upper connecting body 8 is provided in the sliding holder 7 and a lower connecting body 12 is provided in the fixed holder 11, and a tooth rest part is detachably connected to the upper connecting body 8 and the lower connecting body 12 through a flexible arm for moving toward the mouth of a user. In the fourth, an angle adjustment mechanism enabling the upper tooth rest part to be turned by a desired angle to the user side from the sliding holder 7 in the upper connecting body 8.SELECTED DRAWING: Figure 4

Description

  The present invention mainly relates to an improvement of a dental opener, and more specifically, by opening a gap between an upper tooth receiving portion and a lower tooth receiving portion to a desired width by operating a dimension feeding lever. The present invention relates to a mouth opener for the purpose of treating teeth and the like.

  Conventionally, there has been an oral cleaning treatment opening device (hereinafter referred to as an opening device) as disclosed in Patent Document 1 as a dental opening device. The opener has an annular lip support portion that supports the lip in an opened state, and a first tongue piece for securing the open state of the mouth by being inserted between upper and lower teeth. However, since the shape of the mouth opener is fixed, the size of the mouth opening cannot be freely changed, and it is not an opener that can accommodate a wide range of people regardless of age or gender difference. .

  There is also a mouth opener as shown in Patent Document 2. The opener moves the lower tooth arm up and down among the two arms applied to the upper and lower teeth, thereby promoting the opening and closing of the mouth to treat the teeth. However, the movable arm for the lower teeth of the opening device does not move up and down in the vertical direction with respect to the upper tooth arm, but by rotating about the fulcrum, It is something that leaves. For this reason, the contact of the upper and lower teeth arms with the teeth becomes unstable, making it difficult to perform dental treatment by using an opener in a stable holding state.

  Furthermore, since the cushioning cap (tooth receiving part) is on the front extension line of the arm, there is a problem in that the arm exists in the front of the face during the treatment and interferes with the treatment.

Japanese Patent Laid-Open No. 2006-326017 Japanese Patent Laid-Open No. 2001-017451

Therefore, the present invention tries to solve the following problems.
The first is to provide an opening device that can freely and freely change the size of the opening of the mouth, and that can accommodate a wide range of people regardless of age and gender differences.
Secondly, the present invention provides an opener that can be used in a stable state in an opener held by a tooth.
Third, the front face of the face is opened to provide an opener that is easy to treat.

In order to solve the above problems, the present invention employs the following means for the mouth opener.
The first is an mouth opener having upper and lower tooth receiving portions that contact upper and lower teeth, and an interval adjusting device that adjusts an interval between the upper and lower tooth receiving portions.
Second, the gap adjusting device is provided with a fixed holding body to which a lower tooth receiving portion is connected to the lower end of the ratchet bar, and the upper tooth receiving portion is attached to the ratchet bar above the fixed holding body. Is attached, and the sliding holding body is stepped up by operating the dimension feed lever and can be lowered by operating the release pin.
Thirdly, in order to provide a connecting portion with the upper and lower tooth receiving portions at the end portions of the sliding holding body and the fixed holding body, and to make the upper and lower tooth receiving portions face the user's mouth at the connecting portion. The upper and lower bent arms are detachably connected.
Fourth, an angle adjusting mechanism is provided at the connecting portion with the sliding holding body so that the upper tooth receiving portion can rotate a desired angle from the sliding holding body to the user side.

  As an improvement of the present invention, the upper and lower tooth receiving portions are connected to the upper and lower tooth receiving portions provided at the ends of the sliding holding body and the fixed holding body from the sliding holding body and the fixed holding body. Further, an angle adjusting mechanism capable of rotating a desired angle can be provided on the user side.

The present invention exhibits the following effects.
First, since the distance adjusting device raises the stepping of the sliding holder by operating the dimension feed lever, the sliding holder connected to the upper tooth receiving portion is the lower tooth receiving portion. Stepping rises with respect to the fixed holding body to be connected, the width of the opening of the mouth can be freely changed by the width of the dimension feed, and it can accommodate a wide range of people regardless of age and gender differences A mouth opener could be provided.

  Secondly, since the tooth receiving part for the upper teeth from the sliding holder can be rotated to the user side by a desired angle at the connecting part with the sliding holder, the teeth are not beautifully arranged. Even in this case, the angle adjusting mechanism can position the upper tooth support portion on the tooth at a desired position, and can provide a mouth opener that can be used in a stable state.

  Thirdly, since the upper and lower tooth receiving portions are connected via the upper and lower bending arms to face the user's mouth, the upper and lower bending arms connected to the upper and lower tooth receiving portions are the side surfaces of the patient's face. Since the patient faces from the side, the front of the face is opened, and a mouth opener that is easy to treat can be provided.

  Fourth, by making the upper and lower tooth receiving portions detachable via the upper and lower bending arms, the upper and lower tooth receiving portions and the bending arms can be exchanged, so that disinfection work after use can be easily performed. In addition, by preparing upper and lower tooth receiving parts and upper and lower bent arms that match different tooth sizes for children and adults (for men and women), a versatile mouth opener is prepared. It became possible to provide.

Front view of the opening device according to the present invention Same left side view Plan view It is front sectional explanatory drawing which shows operation | movement of the ratchet mechanism of an opening device, (A) shows the state which the fixed holding body and the sliding holding body have contacted, (B) has raised the sliding holding body from the fixed holding body. Indicates the state. It is sectional explanatory drawing which shows the internal structure of the angle adjustment mechanism of the tooth receiving part for upper teeth in an opening device, (A) shows the state without angle adjustment, and (B) shows the state with angle adjustment. Cross-sectional exploded view showing the detachable state of the bending arm

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described together with examples. 1 is a front view of an opening device according to the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is a plan view thereof. The opening device 1 according to the embodiment includes a ratchet bar 2, an upper tooth member 3 and a lower tooth member 4 attached to the ratchet bar 2.

  The upper tooth member 3 is slidably mounted on the upper bending arm 6 having the upper tooth receiving portion 5 contacting the upper tooth shown in FIG. 3 attached to the tip and the ratchet bar 2 shown in FIG. The sliding holding body 7 and the upper connecting body 8 for connecting the sliding holding body 7 and the upper bending arm 6 shown in FIGS.

  The mounting state of these members will be described. A sliding holding body 7 is slidably mounted on the ratchet bar 2, an upper connecting body 8 is connected to the sliding holding body 7, and an upper bent arm 6 is detachably connected in a direction perpendicular to the upper connecting body 8. An upper tooth receiving portion 5 that comes into contact with the upper teeth is detachably attached to the tip of the upper bending arm 6.

  As shown in FIGS. 1 and 2, a lower tooth member 4 is mounted on the ratchet bar 2 below the upper tooth member 3. As shown in FIG. 2, the lower teeth member 4 includes a lower bent arm 10 having a lower tooth receiving portion 9 that contacts the lower teeth, and a fixed holding body 11 fixed to the lower end of the ratchet bar 2. 1 and the lower connecting body 12 that connects the fixed holding body 11 and the lower bending arm 10 shown in FIG.

  The mounting state of these members will be described. A fixed holding body 11 is fixed to the ratchet bar 2, a lower connecting body 12 is connected to the fixed holding body 11, and a lower bent arm 10 is detachably connected in a direction perpendicular to the lower connecting body 12. A lower tooth receiving portion 9 that comes into contact with the lower teeth is detachably attached to the tip.

  The sliding holding body 7 of the upper tooth member 3 is a member for moving the upper tooth receiving portion 5 up and down, and the sliding holding body 7 is stepped and raised on the ratchet bar 2. And a release pin 71 that can be pushed down at once. The sliding holding body 7 is raised by the dimension feed lever 70 to open the upper tooth receiving portion 5 connected to the sliding holding body 7 and the lower tooth receiving portion 9 connected to the fixed holding body 11. That is, the ratchet bar 2, the fixed holding body 11, and the sliding holding body 7 serve as a distance adjusting device 13 that adjusts the distance between the upper tooth receiving part 5 and the lower tooth receiving part 9.

  The interval adjusting device 13 is used as follows. With the upper tooth receiving part 5 in contact with the upper teeth and the lower tooth receiving part 9 in contact with the lower teeth and the user holding the opening device 1, the user operates the dimension feeding lever 70 to slide the holding body 7. Is raised in a direction away from the fixed holding body 11, that is, upward, the upper tooth receiving portion 5 is stepped up. In other words, the distance between the upper tooth receiving part 5 and the lower tooth receiving part 9 is opened at the dimension feeding interval by the operation of the dimension feeding lever 70 of the distance adjusting device 13.

  Thereby, irrespective of a user's age and a gender difference, a user's mouth can be opened to the desired area convenient for treatment. After the treatment, the interval between the sliding holding body 7 and the fixed holding body 11 can be released by sliding the sliding holding body 7 downward on the ratchet bar 2 while pushing down the release pin 71.

  The upper connecting body 8, which is a member that connects the sliding holding body 7 and the upper bending arm 6 to which the upper tooth receiving portion 5 is mounted, has an angle adjusting projection 80, an angle adjusting gear 81, and a sliding holding body 7 side. Is deployed. The upper connecting body 8 and the lower connecting body 12 described later serve as a connecting portion in the present invention.

  The upper bent arm 6 is detachably connected to the upper connecting body 8. The upper bent arm 6 is an arm bent in an L shape, and a socket portion 60 for connection is formed on the upper connecting body 8 side, bent at a right angle by the bent portion 61, and is extended to the other end extending therefrom. A mounting portion 62 of the tooth receiving portion 5 is formed, and the upper tooth receiving portion 5 is used from the upper coupling body 8 side toward the user's mouth side, that is, away from the ratchet bar 2 and the sliding holding body 7. It bends in an L shape so as to face the person's mouth side.

  In addition, the upper tooth receiving part 5 attached to the attaching part 62 is removable, and in the Example, the upper tooth receiving part 5 consists of a cover of silicon rubber.

  As shown in FIGS. 6 and 5, the connecting structure between the upper bent arm 6 and the upper connecting body 8 of the sliding holding body 7 is a socket 60 formed on the upper connecting body 8 side of the upper bent arm 6. The push pin 64 is attached to the tip of the upper connecting body 8. A locking hole 66 is formed inside the socket part 60. The push pin 64 is formed with a push button 63 on the upper connecting body 8 side and a locking projection 65 for locking near the tip on the other end side.

  The upper bent arm 6 is connected to the upper connecting body 8 by inserting the push pin 64 into the socket portion 60 and engaging the locking protrusion 65 with the locking hole 66. Eventually, the upper tooth receiving portion 5 attached to the upper bending arm 6 is detachably connected to the sliding holding body 7 for adjusting the interval via the upper connecting body 8. When the push button 63 is pressed, the locking of the protrusion 65 of the push pin 64 to the locking hole 66 in the socket part 60 of the upper bent arm 6 is released. By this operation, the upper bending arm 6 can be easily removed from the upper coupling body 8.

  The lower connecting body 12 is a member that connects the fixed holding body 11 and the lower bending arm 10 to which the lower tooth receiving portion 9 is attached, and serves as a connecting portion. The lower bending arm 10 is detachably connected to the lower connecting body 12. As a result, the lower tooth receiving portion 9 attached to the lower bending arm 10 is made detachable.

  Although not shown, the lower bending arm 10 has the same shape and structure as the upper bending arm 6, extends in an L shape from the lower coupling body 12, and is socketed in a direction in which the lower coupling body 12 side is away from the lower coupling body 12. Forming a bent portion that is bent at a right angle from the socket portion toward the direction of the user's mouth, and an attachment portion of the lower tooth receiving portion 9 is formed at the tip. The lower tooth receiving portion 9 is detachably attached to the attachment portion of the lower bending arm 10. In the embodiment, the lower tooth receiving portion 9 is made of a silicon rubber cover. The lower bent arm 10 is bent in a direction from the lower coupling body 12 toward the user's mouth so that the lower tooth receiver 9 faces the user's mouth.

  The connection structure between the lower bent arm 10 and the lower connector 12 is the same as the connection structure of the upper bent arm 6 and the upper connector 8.

  Since the upper bending arm 6 and the lower bending arm 10 are detachable from the upper connecting body 8 and the lower connecting body 12, the upper bending arm 6 and the lower bending arm 10 can be exchanged. Thereby, the disinfection operation | work etc. of the upper bending arm 6 and the lower bending arm 10 after use, and the upper and lower tooth receiving part attached to it can be performed easily. If the upper bent arm 6 and the lower bent arm 10 are prepared with different tooth shapes for children and adults (for men and women), the upper bent arm and the lower bent arm corresponding to the tooth shape are prepared. It is possible to provide a versatile opening device 1 that can select the above.

  The upper coupling body 8 is provided with an angle adjusting mechanism for changing the contact position of the upper tooth receiving portion 5 with the upper teeth. The angle adjustment mechanism includes an angle adjustment protrusion 80 and an angle adjustment gear 81, and both members are provided in the upper coupling body 8. By the angle adjusting mechanism, the upper tooth receiving portion 5 can be rotated by a desired angle from the sliding holder 7 to the user side.

  As shown in FIGS. 5 (A) and 5 (B), the angle adjusting projection 80 is engaged with the angle adjusting gear 81. The upper coupling body 8 is rotated by changing the engagement position of the angle adjustment gear 81 with respect to the angle adjustment protrusion 80. As the upper connecting body 8 rotates, the upper bending arm 6 connected to the upper connecting body 8 rotates, and as a result, the position of the upper tooth receiving portion 5 attached to the tip of the upper bending arm 6 changes. is there.

  By changing the position of the upper tooth receiving portion 5 along with the rotation of the angle adjusting gear 81, the position of the upper tooth receiving portion 5 corresponding to the user's teeth is made variable. Thus, the positional relationship between the upper tooth receiving part 5 and the lower tooth receiving part 9 when the user holds the opening device 1 with the upper teeth and the lower teeth is adjusted to a desired position. Thereby, even in the case of a user with poor tooth alignment, it is possible to position the upper tooth receiving portion 5 and the lower tooth receiving portion 9 on the teeth at a desired position, and the use of the opening device 1 in a stable state is possible. It becomes possible.

1 ... Opener 2 ... Ratchet bar 3 ... Upper teeth member 4 ... ... Lower teeth member 5 ... Upper tooth receiving part 6 ... Upper bending arm 7 ... Sliding Holding body 8 ... Upper connecting body 9 ... Lower teeth receiving part 10 ... Lower bent arm 11 ... ······························· 12・ ・ ・ ・ ・ Bent part 62 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Mounting part 63 ・ ・ ・ ・ ・ ・ ・ ・ Push button 64 ・ ・ ・ ・ ・ ・ ・ ・ Push pin 65 ・ ・ ・ ・ ・ ・・ ・ ・ Locking protrusion 66 ・ ・ ・ ・ ・ ・ ・ ・ ・ Locking hole 70 ・............ dimension feeding lever 71 ......... release pin 80 ......... angle adjusting projection 81 ......... angle adjustment gear

Claims (2)

Upper and lower tooth receiving portions that contact upper and lower teeth;
In the mouth opener having an interval adjusting device for adjusting the interval between the upper and lower tooth receiving portions,

The distance adjusting device is provided with a fixed holding body to which a lower tooth receiving portion is connected to the lower end of the ratchet bar, and the upper tooth receiving portion is connected to the ratchet bar above the fixed holding body. A slide holder is mounted, the slide holder is stepped up by operating the feed lever, and can be lowered by operating the release pin.

Provided with connecting portions with the upper and lower tooth receiving portions at the ends of the sliding holding body and the fixed holding body,
The upper and lower tooth receiving portions are detachably connected to the connecting portion via upper and lower bent arms for facing the user's mouth,

The mouth portion is characterized in that the connecting portion with the sliding holding body is provided with an angle adjusting mechanism capable of rotating the tooth receiving portion for the upper teeth from the sliding holding body to the user side by a desired angle. Opener.
  An angle at which the upper and lower tooth receiving portions can be rotated from the sliding holding body and the fixed holding body to the user side by a desired angle at the connecting portions provided at the ends of the sliding holding body and the fixed holding body. The mouth opener according to claim 1, further comprising an adjusting mechanism.

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