JP6268504B1 - Dental opening holder - Google Patents

Abstract

Disclosed is a dental opening holder excellent in operability capable of guiding and holding a patient's opening smoothly and easily and protecting an operator's fingers during dental treatment in the oral cavity. An insertion portion 2 in which a stepped groove 2a is engraved on a substantially conical outer surface whose outer diameter gradually increases from one end portion toward the other end side, and on the other end side of the insertion portion 2. A dental opening holder 1 which is formed and includes a handle portion 3 for rotating and pushing and pulling the insertion portion 2, from one end portion to the other end portion of the opposite outer surface of the insertion portion 2. And forming a planar sliding surface 2b. The step-shaped groove 2a is a screw-shaped groove. The step-shaped groove 2a is a plurality of independent circumferential grooves. The collar part 4 which has an outer diameter larger than the outer diameter of the other end side of the insertion part 2 in the boundary part of the insertion part 2 and the handle part 3 was provided. The insertion hole 3a into which a finger can be inserted is formed in the handle part 3. [Selection] Figure 5

Description

  This invention is used when a dentist, a dental hygienist, a nurse, a caregiver, etc. is used to introduce a mouth when performing oral care, examination, or treatment for the elderly, a disabled person, etc. The present invention relates to a dental opening holder for holding.

  Conventionally, a dental opening holder that is used during dental treatment and that keeps a patient's mouth open is known.

  In the dental opening holder of Patent Document 1, a substantially conical insertion portion having a spiral guide groove on the outer surface is inserted from the gap between the upper and lower teeth, and the spiral guide groove and the upper and lower teeth are engaged. While rotating, the insertion part moves between the upper and lower teeth while being guided by the guide groove to open the mouth to a predetermined size, and the drop-off prevention part formed at the tip is caught by the upper and lower teeth The mouth can be kept open. Because the insertion part can be inserted through a slight gap between the upper and lower teeth, it can be worn on infants who do not want to open or on patients with dementia who are difficult to understand the instructions of the surgeon (doctor, etc.) It can be done easily.

Japanese Patent No. 5813843

  However, when the patient is in a state of tightly tightening his / her teeth, in order for the surgeon to gradually increase the degree of opening of the patient using the dental opening holder as in Patent Document 1, the spiral shape of the insertion portion is used. A large force is required when engaging and rotating the guide groove and the upper and lower teeth, and it is necessary to apply a strong force continuously. It takes time to secure the desired opening state and at the same time puts a heavy burden on the patient's teeth. There is a risk of giving. In addition, the surgeon must rotate the insertion part in a narrow oral cavity, and is required to perform complex operations while maintaining a strong force, which is very difficult for those who are unfamiliar with the operation. The problem that it is. Since the inside of the oral cavity cannot be observed with a small opening degree and appropriate treatment cannot be performed, it is desirable to ensure a desired opening state promptly. However, with a conventional dental opening holder that gradually opens, time and labor are required, and stress on the patient side is increased, which may promote stronger opening rejection.

  Furthermore, in the above-described dental opening holder, the operation part and the proximal end part finally engaged with the tooth are adjacent to each other, so that there is a risk that the patient may accidentally bite the operator's finger during the treatment. There is sex. Then, the surgeon must operate a relatively small opening holder using at least two fingers, and requires a detailed technique for handling the opening holder.

  Therefore, the present invention has been made in view of the above-described problems, and when performing dental treatment in the oral cavity, the operability capable of guiding and holding the patient's opening smoothly and easily, and protecting the operator's fingers. An object of the present invention is to provide a dental opening holder with excellent safety.

  The dental opening holder of the present invention includes an insertion portion formed by cutting a stepped groove on an outer surface having a substantially conical shape with an outer diameter gradually increasing from one end portion toward the other end side. A dental opening holder formed on an end side for rotating and pushing and pulling the insertion portion, from one end portion of the outer surface facing the insertion portion toward the other end side. It is characterized by the formation of a flat sliding surface.

  The dental opening holder of the present invention is characterized in that the step-shaped groove is a screw-shaped groove.

  The dental opening holder of the present invention is characterized in that the stepped grooves are a plurality of independent circumferential grooves.

  The dental opening holder according to the present invention is characterized in that a collar portion having an outer diameter larger than the outer diameter on the other end side of the insertion portion is provided at a boundary portion between the insertion portion and the handle portion.

  The dental opening holder of the present invention is characterized in that an insertion hole into which a finger can be inserted is formed in the handle portion.

  The dental opening holder of the present invention includes an insertion portion formed by cutting a stepped groove on an outer surface having a substantially conical shape with an outer diameter gradually increasing from one end portion toward the other end side. A dental opening holder formed on an end side for rotating and pushing and pulling the insertion portion, from one end portion of the outer surface facing the insertion portion toward the other end side. When the dental opening holder is inserted between the upper and lower teeth of the patient, the surface provided on the insertion part is the gap between the upper and lower teeth. It is easy to insert the insertion part into the oral cavity by sliding it from the front tooth (incisor) side to the back tooth (molar tooth) side so that the two opposing sliding surfaces slide between the upper and lower teeth. Can be inserted. At this time, since the outer diameter of the insertion portion gradually increases from one end portion toward the other end side, the opening degree can be easily and quickly adjusted to a desired size by using a planar sliding surface. it can. After inserting the insertion part to a predetermined position, rotate the insertion part 90 degrees in a predetermined direction and engage the upper and lower teeth with the stepped screw-shaped grooves carved on the outer surface, so that the teeth are inserted It can be prevented from falling off the part, and the mouth can be held open. Moreover, when removing the insertion part from the oral cavity, the insertion part can be pulled out by performing the reverse procedure at the time of insertion. That is, the insertion portion is rotated 90 degrees in a predetermined direction, and only the sliding surfaces facing each other are slid from the back tooth (molar) side toward the front tooth (incisor side) so as to slide between the upper and lower teeth. Thus, the insertion portion can be easily removed from the oral cavity.

  In the dental opening holder of the present invention, since the stepped groove is a screw-like groove, after the upper and lower teeth are locked in the groove, the handle portion is rotated to the right or left, thereby allowing the upper and lower teeth to move. The vertical spacing can be increased or decreased to match the optimal opening for treatment.

  Since the dental opening holder of the present invention is a plurality of circumferential grooves in which the stepped grooves are independent, after pushing the insertion portion into the oral cavity to a predetermined position, the handle portion is rotated to circle the upper and lower teeth. By putting in the circumferential groove, the upper and lower teeth can be fixed without sliding on the running surface.

  The dental opening holder of the present invention is provided with a collar portion having an outer diameter larger than the outer diameter of the other end side of the insertion portion at the boundary portion between the insertion portion and the handle portion. The insertion can be stopped at the buttocks, and even if the operator slides his hand, the dental opener is not inserted deep into the patient's oral cavity. Further, since the insertion part and the handle part for operating the insertion part are separated by the buttocks, there is no risk that the patient will accidentally bite the operator's fingers, and the operator can safely perform the treatment. .

  According to the dental opening holder of the present invention, since the insertion hole into which the finger can be inserted is formed in the handle portion, the operator can insert the insertion portion by inserting at least one finger into the insertion hole of the handle portion. The insertion portion can be easily operated even in a narrow oral cavity. If a light source is inserted into the insertion hole, the opening can be held while illuminating the inside of the oral cavity, and the state of the molar portion can be confirmed alone.

The top view of embodiment of the dental opening holder of this invention. The front view of embodiment of the dental opening holder of this invention. The front view of other embodiment of the dental opening holder of this invention. AA sectional view taken on the line AA of FIG. The perspective view of embodiment of the dental opening holder of this invention.

  The best embodiment of this dental opening holder will be described below with reference to the drawings. This dental opening holder 1 is a dental opening holder that is inserted between upper and lower teeth and maintains an open state. As shown in FIG. 5, the outer diameter gradually increases from one end to the other end. The insertion portion 2 having a substantially conical shape and a handle portion 3 formed on the other end side of the insertion portion 2 for rotating and pushing the insertion portion 2 are provided. At the boundary portion between the insertion portion 2 and the handle portion 3, a flange portion 4 having an outer diameter larger than the outer diameter on the other end side of the insertion portion 2 is provided.

  The insertion portion 2 has a stepped screw-like groove 2a on the outer surface, and forms a planar sliding surface 2b from one end portion of the opposing outer surface toward the other end side. And the insertion part 2 is the part which pushes the said sliding surface 2b in the oral cavity from the clearance gap between upper and lower teeth, rotates 90 degree | times, engages an upper and lower tooth with the groove | channel 2a, and hold | maintains the state which opened the opening | mouth It is. The groove 2a carved on the outer surface of the insertion portion 2 has a stepped screw shape as shown in FIGS. When the insertion part 2 is inserted into the oral cavity, the teeth can be prevented from falling off the insertion part 2 by engaging with the upper and lower teeth, and the open state can be maintained. Further, once the upper and lower teeth are once locked in the groove 2a, the handle portion 3 is rotated to the right or left, thereby increasing or decreasing the vertical distance between the upper and lower teeth to match the optimal opening state for treatment. be able to.

  The sliding surface 2 b is formed at a position facing the outer surface of the insertion portion 2. As shown in FIGS. 1 and 5, the surface of the sliding surface 2 b is planar, and forms a stepped line at the boundary with the outer surface of the insertion portion 2 in which the groove 2 a is carved. The sliding surface 2b can be smoothly and quickly inserted into the oral cavity or removed from the oral cavity simply by sliding the two sliding surfaces 2b facing each other in the push-pull direction so as to slide between the upper and lower teeth. Can be removed. That is, when inserting the insertion part 2 into the oral cavity, the sliding surfaces 2b facing each other are pushed and slid from the front teeth (incisors) side to the back teeth (molar teeth) side so as to slide between the upper and lower teeth. In order to move the insertion portion 2 out of the oral cavity, the sliding surface 2b may be slid by pulling from the back tooth (molar tooth) side to the front tooth (incisor) side. At this time, since the thickness of the insertion portion 2 increases in a tapered shape from one end portion to the other end portion, as the planar sliding surface 2b moves between the teeth, the opening is gradually adjusted to the outer diameter. Can be large.

  The size and taper angle of the insertion portion 2 are not particularly limited, but preferably the length is about 40 mm to 50 mm, and the outer diameter on the other end side is about 20 mm to 30 mm. When the taper angle is about 10 ° to 20 ° with respect to the axis of the insertion portion 2, the taper can be smoothly inserted into the oral cavity.

  The handle part 3 is a part where the operator operates the insertion part 2 by rotating and pushing. As shown in FIGS. 4 and 5, the handle portion 3 has a cylindrical shape in which an insertion hole 3 a is formed in the handle portion 3. The operator can operate the insertion portion 2 by inserting at least one finger into the insertion hole 3a to grasp the handle portion 3 with the fingers inside and outside the insertion hole 3a. At this time, since the insertion hole 3a is formed up to the boundary part with the collar part 4, when the dental opening holder 1 is inserted into the oral cavity, the fingers inserted into the insertion hole 3a may enter the oral cavity. There is no. Therefore, the patient does not accidentally bite the operator's fingers, and the operator can safely operate the insertion portion 2.

  The handle portion 3 has a smooth outer surface shape in FIGS. 1 and 2 and the like, but the shape is not particularly limited. As shown in FIG. 3, grip irregularities may be formed on the outer surface to prevent slipping, thereby preventing the fingers from slipping. Further, although not shown, the dental opening holder 1 is made of a transparent or translucent material, and if possible, a cavity is also formed in the insertion portion 2 to provide a light source in the cavity or the insertion hole 3a. By inserting it, it is possible to see through to the back of the oral cavity, so that the back teeth can be observed and treated without an assistant.

  The size of the handle portion 3 is not particularly limited, but preferably the length is about 40 mm to 50 mm and the outer diameter is about 20 mm to 25 mm. In addition, the diameter of the insertion hole 3a is about 18 mm to 23 mm. If it is such a size, at least one finger can be inserted into the insertion hole 3a, and treatment can be performed smoothly. it can.

  As shown in FIG. 1 and FIG. 2, the flange portion 4 is formed at a boundary portion between the insertion portion 2 and the handle portion 3, and is larger than the largest outer diameter on the other end side of the insertion portion 2. It has an outer diameter. Therefore, when the operator inserts the insertion portion 2 into the oral cavity, the dental opener 1 will not be inserted into the oral cavity beyond the buttocks 4 even if the operator accidentally pushes the insertion portion 2 into the oral cavity. Can be treated. It is also possible to prevent the surgeon's finger from slipping into the oral cavity. In addition, in FIG. 5, although the collar part 4 becomes thin columnar shape, if it has the above functions, the shape will not be specifically limited.

  Although the outer diameter of the collar part 4 is not specifically limited, It is desirable that it is larger than the outer diameter of the other end part of the insertion part 2 by about 3 mm-5 mm. With such a difference in outer diameter, the heel part 4 is caught by the upper and lower teeth even if it is pushed hard, and the buttock part 4 does not enter the oral cavity, so that an accident during treatment can be prevented. The fingers can be safe.

  Since the material of the dental opening holder 1 is assumed to be a high-strength elastic material such as high tear silicone, for example, the dental opening holder 1 breaks immediately even if breakage such as a crack occurs. There is nothing. Even if the dental opening holder 1 is engaged with the patient's teeth during the treatment and breakage occurs, the dental opening holder 1 will not break in the oral cavity unless a considerable load is applied, and the patient can hold the damaged dental opening. Accidents such as accidental ingestion of the debris of the ingredient 1 can be prevented. Moreover, since the high tear silicone is excellent in chemical resistance and heat resistance, it can be repeatedly used for sterilization and is economical. Of course, as long as the same effect can be expected, the material is not limited to high tear silicone, and another material may be selected.

  Next, in this embodiment, the procedure for holding the upper and lower teeth in an open state using the dental opening holder 1 will be described. First, the handle portion 3 is grasped by inserting a finger into the insertion hole 3a formed in the handle portion 3, and the tip of the sliding surface 2b of the insertion portion 2 is inserted into the oral cavity from the gap between the upper and lower teeth. insert. Then, the two sliding surfaces 2b facing each other are pushed and slid from the front tooth side to the molar side so as to slide between the upper and lower teeth, and the insertion portion 2 is inserted into the oral cavity to the end portion on the other end side. At this time, as described above, the insertion portion 2 has a substantially conical shape in which the outer diameter gradually increases from one end portion toward the other end side. Therefore, by using the planar sliding surface 2b, the opening degree can be reduced. The desired size can be adjusted easily and quickly. When the insertion portion 2 is inserted into the oral cavity to a predetermined position, the insertion portion 2 is rotated 90 degrees in a predetermined direction, and the groove 2a is engaged with the upper and lower teeth to maintain the open state.

  When the dental opening holder 1 is removed from the oral cavity, the insertion portion 2 is first rotated 90 degrees in a predetermined direction in the reverse order as described above, and the sliding portion 2b is brought into contact with the upper and lower teeth, thereby It is only necessary to withdraw and slide from the back tooth (molar) side to the front tooth (incisor) side so as to slide, and withdraw the insertion portion 2 from the oral cavity.

  Note that a plurality of independent circumferential grooves that are not connected may be formed on the outer surface of the insertion portion 2 instead of the thread-like grooves. In that case, the handle part 3 is rotated after being pushed to a predetermined position, and the upper and lower teeth can be fixed without sliding on the sliding surface 2b by putting the upper and lower teeth into the circular groove.

  The dental opening holder of the present invention is expected to be in great demand from dentists, dental hygienists, nurses and the like because of the various advantages described above. In addition, because of its safety and operability, it can be used by caregivers to care for the oral cavity of the elderly and persons with disabilities. It can be said that it is a dental opening holder that can be expected to be purchased from users.

DESCRIPTION OF SYMBOLS 1 Dental opening holder 2 Insertion part 2a Groove 2b Sliding surface 3 Handle part 3a Insertion hole 4 Hip part

Claims (5)

An insertion part formed by engraving a stepped groove on an outer surface having a substantially conical shape with an outer diameter gradually increasing from one end part toward the other end side; and the insertion part formed on the other end side of the insertion part A dental opening holder comprising a handle for rotating and pushing and pulling,
A dental opening holder characterized in that a planar sliding surface is formed from one end of the opposing outer surface of the insertion portion toward the other end.   The dental opening holder according to claim 1, wherein the step-shaped groove is a screw-shaped groove.   The dental opening holder according to claim 1, wherein the stepped grooves are a plurality of independent circumferential grooves.   4. The flange portion having an outer diameter larger than an outer diameter on the other end side of the insertion portion is provided at a boundary portion between the insertion portion and the handle portion. 5. The dental opening holder as described.   The dental opening holder according to any one of claims 1 to 4, wherein an insertion hole into which a finger can be inserted is formed in the handle portion.

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