JP2005204770A - Dental oscillating treatment equipment and dental treatment chip for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a pointed head of a chip to be spotlighted by making the pointed head of the chip face in the same direction at anytime when the chip is attached to a hand piece with no need of a chip attaching and detaching tool for attaching the chip (a cutter) to and detaching the chip from the handpiece. <P>SOLUTION: An oscillating body 2 is formed integrally and linearly with an oscillator to extend from a main body of a handpiece and the chip is removably fixed to the extension of the oscillator at a prescribed angle θ. The chip 30 can be inserted in a pointed head section side of the oscillator 2 from the upper part at the prescribed angle θ and the inserted chip 30 is fixed to the oscillator 2 by a chip fixing member 40. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  INDUSTRIAL APPLICABILITY The present invention is used for a dental vibration treatment device with a vibrator used for dental calculus removal, root plainning, root canal enlargement, washing, and the like, and the dental vibration treatment device. The present invention relates to a suitable tip (blade).

  In dental treatment, recently, ultrasonic vibrators and air vibrators are generally used to remove calculus, root planening, root canal enlargement, and washing. A handpiece is used.

FIG. 4A is a cross-sectional configuration diagram of a main part for explaining an example of a known ultrasonic scaler as an example of the handpiece 10 using an ultrasonic transducer, and FIG. FIG. 4A is a view as seen from the direction of the arrow BB in FIG. 4, where 1 is an ultrasonic vibrator, 2 is an ultrasonic vibrator through which vibration of the ultrasonic vibrator 1 is propagated, and 3 is a connection plug. , 4 (4 ₁ to 4 _n ) are light guides, which are housed in the handpiece body 5, and a tip (work tool = blade) 20 is detachably screwed to the ultrasonic vibrator 2, The chip 20 is ultrasonically vibrated to remove tartar. Also, light from the light source lamp is introduced into the light guide 4 (4 ₁ ~4 _n) within, it is transmitted through the light guide 4 (4 ₁ ~4 _n) to the distal end of the handpiece body, from the tip portion 4B, as indicated by 4 ₁ to 4 _n , the tip 20 of the chip 20 (working portion) is illuminated by being emitted in an annular shape.

As described above, in the conventional dental ultrasonic treatment device, the tip (work tool) 20 is detachably attached to the ultrasonic vibrator 2 with screws or the like. the orientation of the tip 20, either the one face is undefined, therefore, as the chip 20 may be oriented either a number using the (4 ₁ to 4 _n) the light guide 4, the light emitting end, As shown in FIG. 4B, they are arranged in an annular shape (see, for example, Patent Document 1).

  As described above, in a dental ultrasonic vibration (or air vibration) treatment tool, since a conventional tip (work tool) is attached to a vibrating body with a screw, it cannot be specified in which direction the tip is directed. . Therefore, the light emitted from the tip of the handpiece is generally ring-shaped. However, the irradiation range of the ring light is narrow, and the tip of the tip 20 is bent as shown in the figure. In particular, in order to perform root canal treatment as shown in FIG. In the attachment type, it is impossible to illuminate the tip (treatment site).

  In view of the circumstances as described above, the present applicant first sets the vibrating body that transmits vibrations to a linear shape, extends the linear vibrating body from the handpiece body, and extends the linear extension. The tip (blade = working member) can be detachably attached (screwed) at a predetermined angle to the exit, and the tip is made straight by making the tip easy, and the tip of the tip is always Proposed a dental vibration treatment device that can direct light irradiation of the light guide to the tip of the tip by making it point in the same direction, and more effectively illuminate the tip of the tip (work location) (patent) Reference 2).

  FIG. 6 is a main part configuration diagram for explaining an example of the dental vibration treatment tool previously proposed by the applicant. In the figure, the part having the same function as that of the prior art shown in FIGS. 4 and 5 is shown. Are denoted by the same reference numerals as in FIGS. Thus, in the dental vibration treatment instrument shown in FIG. 6, an ultrasonic vibrator for transmitting vibrations of an ultrasonic vibrator or an air vibrator (hereinafter referred to as an ultrasonic vibrator). 2 extends linearly from the tip of the handpiece 10, and the tip 20 is detachably attached to the extended portion (for example, by screwing or the like) at a predetermined angle θ.

  FIG. 7 is a view showing a state when the integrated body of the ultrasonic vibrator 1 and the ultrasonic vibrator 2 shown in FIG. 6 is taken out from the handpiece 10, and as shown in FIG. At one end, a male screw 20a is provided, and correspondingly, at a predetermined position extending from the handpiece body 10 of the ultrasonic vibrator 2, a predetermined axis with respect to the axis of the extending portion is provided. A female screw 2a having an angle (θ) is provided, and the male screw 20a of the chip 20 is detachably attached to the female screw 2a.

Since the ultrasonic vibrator 2 is integrally incorporated in the handpiece body 5 when the handpiece is manufactured, the attachment location to which the chip 20 is attached and the orientation of the attached chip can be set in advance. Since the tip position (working part) of the chip 20 is also determined in advance, the irradiation direction of the light emitted from the light guide 4 is also determined in advance, so that the irradiation light from the light guide 4 is concentrated on the working part. Can do.
Japanese Patent Laid-Open No. 9-10227 Japanese Patent Application No. 2002-344267

  At present, in the dental (or veterinary) ultrasonic scalers on the market, as described above, the tip (blade) is a structure that is attached with a screw, and a dedicated attachment / detachment tool is required for the attachment. It takes time and effort to change the tip depending on the purpose of treatment. In addition, since the attachment portion is a screw, it cannot be specified in which direction the tip of the tip is fixed. Therefore, the light guide (light emission part) built in the tip of the handpiece is generally ring-shaped, but ideally, the treatment site is intensively illuminated with spot illumination.

  The present invention further improves the dental vibration treatment tool previously proposed by the present applicant, eliminates the need for a tool for attaching and detaching a tip (blade) to and from the handpiece, and allows the tip to be handed. The purpose is to enable spot illumination of the tip of the tip so that the tip of the tip always faces in the same direction when attached to the piece.

  According to a first aspect of the present invention, there is provided a vibrator, a vibrating body that transmits vibration from the vibrator, a chip that is detachably attached to the vibrating body, and a chip for detachably fixing the chip to the vibrating body. The vibration body is integrally connected to the vibrator and formed in a linear shape and extends from the handpiece body, and the chip is formed in a linear shape at the extended portion of the vibration body. In a dental vibration treatment instrument that is detachably fixed at a predetermined angle with respect to the vibrating body, the vibrating body has a center hole for fixing a tip extending along the axis toward the distal end portion, and the center hole. The chip fixing member has a through hole for chip insertion intersecting at a predetermined angle from above and a male screw provided on the outer periphery of the tip, and the tip fixing member has one end closed and the other end Consisting of an open cylinder, A female screw that is screwed into a male screw provided on the outer periphery of the tip end portion of the vibrating body is provided on the inner periphery of the cylindrical body, and the central axis of the cylindrical body is inserted through a central hole provided in the vibrating body. And when the female screw provided on the chip fixing member is screwed into the male screw provided on the vibrating body and tightened, the protrusion provided on the chip fixing member is used for inserting the chip. The chip inserted into the through-hole is pressed to fix the chip to the vibrating body.

  According to a second aspect of the present invention, there is provided a vibrator, a vibrating body that transmits vibration from the vibrator, a chip that is detachably attached to the vibrating body, and a chip for detachably fixing the chip to the vibrating body. The vibration body is integrally connected to the vibrator and formed in a linear shape and extends from the handpiece body, and the chip is formed in a linear shape at the extended portion of the vibration body. In a dental vibration treatment instrument that is detachably fixed at a predetermined angle with respect to the vibrating body, the vibrating body has a center hole for fixing a tip extending along the axis toward the distal end portion, and the center hole. A chip insertion through hole that intersects at a predetermined angle from above and a female screw provided in the inner periphery of the tip recess, and the chip fixing member is a female provided in the recess on the outer periphery. Has a male thread that engages with the screw A protruding portion and a protrusion extending from the protruding portion and inserted into the center hole provided in the vibrating body, and a male screw provided on an outer periphery of the protruding portion of the chip fixing member is connected to the vibrating body. When the screw provided in the inner periphery of the recess is screwed and tightened, the protrusion provided on the chip fixing member presses the chip inserted into the through hole for chip insertion to It is characterized by being fixed to the vibrating body.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a light guide is provided at a lower portion of the vibrating body so that light emitted from the tip of the light guide illuminates the vicinity of the tip of the chip. It is characterized by being arranged.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, a cooling water supply hole coaxial with the center hole for fixing the chip is provided at the axial center of the vibrating body. A cooling water is supplied to the chip.

  A fifth aspect of the present invention is a tip used in the dental vibration treatment device according to any one of the first to fourth aspects, wherein the tip has an O-ring at a predetermined position on the head side, and the O-ring. Is characterized in that it can be inserted into the through hole for inserting the chip under pressure.

  According to the present invention, the tip (blade) can be made straight and the tip position can be made constant. In this case, since the bending process is not performed, the quality stability is improved and the cost of the chip is reduced. Inserts can be attached and detached without tools. Furthermore, it is not necessary to make the light guide into a ring shape, and light can be applied to the tip of the chip.

  FIG. 1 is a schematic configuration diagram of a main part for explaining an embodiment of a dental vibration treatment device according to the present invention. Reference numeral 10 denotes a handpiece, 2 denotes a vibrating body, and the vibrating body 2 includes a tip (blade) 30. Are inserted vertically with a predetermined angle θ with respect to the axis of the vibrating body 2 and are fixed to the vibrating body 2 by the chip fixing member 40.

2A and 2B are cross-sectional configuration diagrams when the chip fixing member 40 shown in FIG. 1 is removed from the vibrator 2, and the example shown in FIG. the tip portion outer periphery and a male screw 2 ₁ is provided, that the axis has holes 2 ₂ is provided for chip fixing, further, and the predetermined intersect the holes 2 ₂ of the chip fixing angle with θ hole 2 ₃ for chip insertion is provided through in the vertical direction. On the other hand, the chip fixing member 40 is formed of a bottomed cylindrical body whose one end 40 ′ is closed, and the male screw 2 ₁ provided on the outer periphery of the vibrating body 2 on the inner peripheral surface of the open end. the female screw 40 ₁ screwed is provided, and along the central axis, the projection 40 ₂ is the chip that is inserted into the hole 2 ₂ chip fixing provided at the center axis of the vibrator 2 The fixing member 40 is provided so as to protrude from the open end.

Thus, inserted from above the chip 30 to the chip insertion hole 2 _3, when screwing the chip fixing member 40 to the vibrating body 2, a center hole 2 ₂ projections 40 ₂ of the vibrating member 2 of the chip fixing member 40 tip insert travels toward the hole 2 _3, the tip of the projection 40 ₂ abuts against the tip 30 inserted into the chip insertion hole 2 _3, fixing the tip 30 to press the chip 30.

FIG. 2B is a view showing an example in which a female screw ₂₅ is provided on the vibrating body 2 side and a male screw 40 ₅ is provided on the chip fixing member 40 side. to form a recess 2 _4, together with the female screw 2 ₅ provided on the inner peripheral surface of the recess 2 _4, whereas, on the chip fixing member 40 is provided with a protrusion 40 ₄ for engaging the recess 2 _4, wherein the male thread 40 ₅ to be screwed with the female screw 2 ₅ formed on the concave inner circumferential face of the vibrating body 2 on the outer periphery of the protruding portion 40 ₄ provided, further, the projection 40 ₂ provided extending from the protrusion portion 40 ₄ the male thread 40 ₅ of the chip fixing member 40 when tightened screwed into the female thread 2 ₅ of the vibrating body 2, the protrusion 40 ₂ of the chip fixing member 40 is inserted into the center hole 2 ₂ of the vibrator 2, the inserted chip in the chip insertion hole 2 in ₃ is obtained so as to press and fix.

The protrusion length of the chip 30 is adjusted by rotating the chip fixing member 40 in the reverse direction to retract the chip fixing member 40 and releasing the force with which the protrusions 40 ₂ press the chip 30. After adjusting the height, the protruding length of the chip 30 can be easily adjusted by tightening the chip fixing member 40 again.

At the center of the vibrating body 2 has a central hole 2 ₄ for water supply the central hole 2 ₂ formed by an extension of the chip fixing, cooling water is supplied through said center hole 2 _4, the cooling water Is transmitted to the tip of the tip (blade) 30 through the tip 30 to cool the treatment (work) location at the tip of the tip.

FIG. 3 is a configuration diagram for explaining an example of a tip (blade) 30 suitable for use in the practice of the present invention, in which 31 is an O-ring, and the O-ring 31 is the head side of the tip 30. It can be fixed at a predetermined position or any desired position. Further, the outer diameter of the O-ring 31 is formed to the extent chip 30 are lightly (with a certain force) fixedly inserted into the chip insertion hole 2 _3, that is, the chip 30 without a chip fixing member 40 Even if the tip 30 is weakly fixed (tightened), the tip 30 may be accidentally dropped into the patient's mouth during surgery. It is preventing.

  As described above, according to the present invention, the tip (blade) can be made straight and the tip position can be made constant. In this case, since the bending process is not performed, the quality stability is improved and the cost of the chip is reduced. Inserts can be attached and detached without tools. There is an advantage that the light guide does not need to be ring-shaped and light can be applied to the tip of the chip.

It is a principal part block diagram for demonstrating one Example of the dental vibration treatment tool by this invention. FIGS. 2A and 2B are cross-sectional views of main parts when the chip fixing member shown in FIG. 1 is removed. It is a figure which shows an example of the chip | tip (cutlery) suitable for using for implementation of this invention. It is a principal part interruption | blocking block diagram for demonstrating an example of the well-known ultrasonic scaler (scaler) as an example of the handpiece using a vibrating body. It is a figure which shows the example of irradiation of a light guide. It is a principal part block diagram for demonstrating an example of the dental vibration treatment tool which this applicant proposed previously. It is a figure which shows a state when the integrated object of the vibrator | oscillator shown in FIG. 6 is taken out from the handpiece main body.

Explanation of symbols

1 ... ultrasonic transducer (or air oscillator), 2 ... vibrator, 3 ... connection plug part, 4 (4 ₁ to 4 _n) ... the light guide, 5 ... handpiece body, 10 ... handpiece, 20, 30 ... chip (work tool), 40 ... chip fixing member.

Claims (5)

  A vibrator, a vibrator that transmits vibrations from the vibrator, a chip that is detachably attached to the vibrator, and a chip fixing member that detachably fixes the chip to the vibrator, The vibrating body is integrally connected to the vibrator and formed in a straight line and extends from the handpiece main body, and the tip is predetermined with respect to the linear vibrating body in the extended portion of the vibrating body. In the dental vibration treatment device fixed detachably at a predetermined angle, the vibrating body has a center hole for fixing the tip extending along the axis toward the distal end portion, and a predetermined angle from above with respect to the center hole. The chip fixing member is formed of a cylindrical body whose one end is closed and the other end is opened. The inner circumference of the cylinder A female screw that engages with a male screw provided on the outer periphery of the tip of the vibrating body is provided, and a central axis of the cylindrical body has a protrusion that is inserted into a central hole provided in the vibrating body, and the chip A chip in which the protrusion provided on the chip fixing member is inserted into the through hole for chip insertion when a female screw provided on the fixing member is screwed onto and tightened to a male screw provided on the vibrating body. A dental vibration treatment tool, wherein the tip is fixed to the vibrating body by pressing.   A vibrator, a vibrator that transmits vibrations from the vibrator, a chip that is detachably attached to the vibrator, and a chip fixing member that detachably fixes the chip to the vibrator, The vibrating body is integrally connected to the vibrator and formed in a straight line and extends from the handpiece main body, and the tip is predetermined with respect to the linear vibrating body in the extended portion of the vibrating body. In the dental vibration treatment device fixed detachably at a predetermined angle, the vibrating body has a center hole for fixing the tip extending along the axis toward the distal end portion, and a predetermined angle from above with respect to the center hole. A chip insertion through hole and a female screw provided in the inner periphery of the recess of the tip, and the chip fixing member is a male screw that is screwed into the female screw provided in the recess of the outer periphery A protrusion having a protrusion and the protrusion A protrusion extending through the center hole provided in the vibrating body, and a male screw provided on the outer periphery of the protruding portion of the chip fixing member is provided on the inner periphery of the concave portion of the vibrating body. When the female screw is screwed and tightened, the protrusion provided on the chip fixing member presses the chip inserted into the through hole for chip insertion and fixes the chip to the vibrating body. A vibration treatment tool for dental use characterized by being made.   3. A light guide is provided at a lower part of the vibrating body, and the light emitted from the tip of the light guide is disposed so as to illuminate the vicinity of the tip of the chip. The dental vibration treatment device described.   2. A cooling water supply hole coaxial with the center hole for fixing the chip is provided at the center of the vibrating body, and cooling water is supplied to the chip through the cooling water supply hole. The dental vibration therapy tool according to any one of Items 1 to 3.   5. A tip used in the dental vibration therapy device according to claim 1, wherein the tip has an O-ring at a predetermined position on the head side, and the O-ring penetrates the tip for insertion. A dental treatment chip characterized by being press-insertable into a hole.

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