JP2019042303A - Chip - Google Patents

Abstract

To provide a chip facilitating inserting an action tip into a deep position of an implant body in a periodontal pocket inside without damaging the implant body and gum, and suitable for shortening a time required for cleaning treatment and improving healing effect after treatment.SOLUTION: A chip 20 comprises a body part 40 and a head part 30. The chip 20 is such that: the body part 40 has a base part 40a mounted on a handpiece 10 incorporating a source of vibration, and a neck part 41 bent in a prescribed direction to the base part 40a; and the head part 30 has a hook shape reverse to the prescribed direction, has a nearly constant height in the prescribed direction, and is formed in a tapered shape in which a width orthogonal to the prescribed direction becomes gradually thinner toward the tip.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tip, and more particularly, to a tip attached to a handpiece containing a vibration generator and used for cleaning treatment of an implant body, treatment of peri-implant inflammation and the like.

  An implant maintenance device using vibration is used for cleaning treatment of an implant body, treatment of peri-implant inflammation, and the like (hereinafter referred to as "cleaning treatment etc."). Such a maintenance apparatus for implants has a handpiece and a tip, and the holding portion of the handpiece incorporates a vibration generating unit by air driving or a vibration generating unit by electric driving using an ultrasonic transducer. The vibration from the vibration generating unit is transmitted to the tip attached to the tip of the handpiece.

  The vibration from the vibration generating unit of the handpiece is amplified by the vibrator and transmitted to the tip. The working tip of the tip is inserted into the periodontal pocket (between the implant body and the gum) and used to perform cleaning procedures and the like.

  Such implant maintenance devices are used to perform cleaning procedures and the like by vibration of the working tip of the tip. Thus, for example, U.S. Pat. No. 5,959,095 discloses a stainless steel, carbon filled polycarbonate or graphite composite tip with fluid passages. Further, Patent Document 2 discloses chips of various shapes (straight, bump-shaped, platelet-shaped, curette-shaped, curved) formed from fibers solidified with a matrix of resin.

Japanese Patent Publication No. 10-502546 Patent No. 3429247 gazette

  As described above, conventionally, cleaning treatment and the like are performed by the action tip of the vibrating tip, but in the case disclosed in Patent Document 1 or Patent Document 2, for example, the rigidity of the action tip is high. There is a problem that the artificial crown interferes when performing an exercise, etc., and the implant can not be inserted to a deep position, or the implant and the gingiva are damaged if it is inserted forcibly.

  The present invention has been made in view of these circumstances, and it is a tip mounted on a handpiece containing a vibration generating unit, which has a working tip inside a periodontal pocket without damaging the implant body or gingiva. It is an object of the present invention to provide a tip suitable for cleaning procedures and the like which can be easily inserted to a deep position of an implant body.

  In order to solve the above-mentioned subject, invention of Claim 1 is a chip which has a body part and a head part, and the above-mentioned body part is a base mounted to a handpiece which contains a vibration source, and the above-mentioned base And the neck portion bent in a predetermined direction, wherein the head portion has a bowl shape opposite to the predetermined direction, the height in the predetermined direction is substantially constant, and the width orthogonal to the predetermined direction is It is characterized in that it is formed in a thin shape gradually becoming thinner toward the tip.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the body portion is made of metal, the head portion is formed of super engineering plastic, and the body portion and the head portion are integrated. It is characterized by

  The invention according to claim 3 is characterized in that in the invention according to claim 1 or 2, a discharge hole for discharging liquid toward the working tip of the tip is formed in the neck portion of the body portion. It is

  According to the present invention, the working tip can be easily inserted to the deep position of the implant body inside the periodontal pocket without damaging the implant body or gums, and the pain and discomfort of the patient occurring during the treatment are reduced. Can shorten the time for cleaning treatment and improve the healing effect after treatment.

It is a figure showing an example of a handpiece equipped with a tip concerning the present invention. It is a side view showing an example of a chip concerning the present invention. It is a top view which shows an example of the chip | tip which concerns on this invention. It is a sectional view showing an example of a chip concerning the present invention. It is a figure which shows an example of the body part of the chip | tip which concerns on this invention. It is a figure which shows an example of the state which is using the chip | tip of this invention.

  Hereinafter, preferred embodiments of the chip of the present invention will be described with reference to the drawings. In the following description, components denoted by the same reference numerals in different drawings may be omitted as they are the same.

  FIG. 1 is a view showing an example of a state in which a tip 20 according to the present invention is attached to a handpiece 10. The handpiece 10 may use either an ultrasonic element or air as a vibration source of the chip 20. Connected to the hand piece 10 is a hose for receiving supply of electric power and cooling water from a dental treatment unit (not shown).

  Inside the tip 20, a liquid supply path 43 is provided from the base 40a to the neck 41. As a result, when the chip 20 is mounted on the handpiece 10, a liquid such as cooling water conducted in the handpiece passes through the liquid supply passage 43 in the chip 20 and the discharge hole provided in the neck portion 41 of the chip 20. 42, and is released toward the working tip 33a described later.

  The main object of the present invention is a tip mounted on a handpiece containing a vibration generating unit, which allows easy insertion of the working tip to a deep position of the implant body inside the periodontal pocket without damaging the implant body or gums It is an object of the present invention to provide a suitable tip which can reduce the time for cleaning treatment and the like and can improve the healing effect after treatment. As a configuration for this purpose, a chip according to the present invention is a chip having a body portion and a head portion, and the body portion is in a predetermined direction with respect to the base and a base mounted on a handpiece incorporating a vibration source The head portion has a hook shape opposite to the predetermined direction, the height in the predetermined direction is substantially constant, and the width orthogonal to the predetermined direction gradually decreases toward the tip Although formed in a thin shape, the configuration of the chip will be described below.

  2 and 3 show an example of a chip according to the present invention. The tip 20 shown in FIGS. 2 and 3 includes a body portion 40 attached to the hand piece 10 and a head portion 30 having a working tip 33a. Here, the action tip 33a means a place to be in direct contact with the target site when the tip 20 is used for cleaning treatment or the like.

  In the chip 20 shown in FIG. 2 and FIG. 3, the body 40 is formed in a bar shape as a whole, but at the rear end (right end in the figure) a hollow bolt shaped base 40a for mounting on the handpiece 10 is The front end side has a neck 41 which is tapered toward the front end. The neck portion 41 is bent upward at a middle portion thereof with respect to the base portion 40 a, that is, at a predetermined angle (for example, about 45 degrees) with respect to the axial direction of the body portion 40. On the side opposite to the side, a discharge hole 42 for discharging the liquid in the direction of the working tip 33a described later is provided.

  Further, as shown in FIG. 5, the body portion 40 has a liquid supply passage 43 extending from the base 40 a to the discharge hole 42 in its interior, and conducts the liquid supplied from the handpiece 10 to the discharge hole 42. Is configured as. Further, in the vicinity of the front end of the neck portion 41, as described later, two narrow portions 41a are provided so as to be integrally joined with the joint portion 31 of the head portion 30.

  On the other hand, as shown in FIGS. 2 and 3, the head portion 30 is bent downward so as to form a straight joint 31 and a predetermined angle (for example, about 60 degrees) with respect to the joint 31. The straight intermediate portion 32 and the downward arc-shaped action portion 33 continuing to the extension of the intermediate portion 32 are integrally formed, and the head portion 30 has right and left widths while the dimension in the height direction is substantially constant. As a result of being formed in a thin shape which becomes thinner gradually as it goes to the tip, it is generally formed in a downward-pointing wedge shape. The front end (left end of the figure) of the action portion 33 has a thickness of 0.3 mm or more and 1.0 mm or less with respect to the longitudinal direction of the body portion 40 so that it can be inserted between the gingiva of the gingiva G and the implant body. The working tip 33a is configured in the form of an obliquely downward tongue having a predetermined angle (for example, about 70 degrees). The head portion 30 has a curved surface 30a whose upper surface is smooth in the longitudinal direction and bulges upward along the entire length. As a result, as shown in FIG. 4C, the cross-sectional shape of the action tip 33a is a vertically long, substantially rectangular shape, and the upper side thereof is curved upward. The action tip 33a has a tongue-like shape, but its ridge line portion is formed to have a curvature radius of 3.0 mm or less so as not to damage the gum.

  The tip 20 is formed such that the front end of the neck portion 41 of the body portion 40 and the joint portion 31 of the head portion 30 are on a straight line. The tip 20 cuts the inside of a metal rod such as titanium, for example, to form a liquid supply path 43, and bends the neck portion 41 of the body portion 40 in which the discharge hole 42 is formed. After mounting on the insert molding die, injection of super engineering plastic such as PEEK (polyether ether ketone) resin, PSU (polysulfone) resin, PESU (polyether sulfone) resin, PAI (polyamide imide) resin etc. on the entire head 30 By manufacturing by molding, the whole can be configured to be integrated. At this time, as shown in FIG. 4A and FIG. 5, since the constricted portion 41a is formed as a vertical groove instead of a ring-shaped constriction, the joint portion 31 at the position corresponding to the constricted portion 41a. As shown in FIG. 4A, the resin constituting the joint portion 31 flows into the necked portion 41a formed in the vertical direction on both the left and right sides of the neck portion 41 and solidifies, and the joint portion 31 and the neck portion are made of resin. A reliable joint is realized without mutual rotation with 41. On the other hand, the cross section at the position where the constriction portion 41a is not formed is as shown in FIG. 4 (b). In any case, the head portion 30 including the bonding portion 31 has a substantially trapezoidal external shape of the cross section along the entire length thereof, and the upper side thereof is in a curved shape that bulges upward.

  As shown in FIG. 6, when the artificial crown T or the implant body is cleaned using the tip 20 according to the present embodiment, the working tip 33a is inserted between the artificial crown T and the gum G. Use. Under the present circumstances, since the junction part 31 and the intermediate part 32 make a predetermined angle, even when treating either the inside or the outside to artificial crown T in various positions in the mouth, a head part The intermediate portion 32 can be made in the vicinity of the side of the artificial crown T without interfering with the artificial crown T. And since the action part 33 of downward arc shape is continued in the extended form of the middle part 32, the action part 33 is surely made to be along the side face of the artificial crown T, and the action tip 33a is easily in the periodontal pocket. Can be inserted into As a result, the working tip 33a can be inserted into the periodontal pocket without damaging the artificial crown T, the implant body or the gum G, so that the time for cleaning treatment etc. can be shortened and the healing effect after the treatment can be improved. .

  Further, since the head portion 30 is integrally formed with the body portion 40 and the dimension in the height direction is substantially constant, the axial direction of the body portion 40 when performing treatment on the artificial crown T When the operator applies a force in the front-rear direction, the deformation of the head portion 30 is suppressed, so the force necessary for the cleaning treatment is efficiently transmitted to the action tip 33a without being absorbed. be able to. On the other hand, since the head portion 30 is formed in a thin shape which becomes thinner gradually toward the tip, the deformation due to the bending in the left and right direction easily occurs. For this reason, the action portion 33 is surely aligned with the side of the artificial crown T, and the action tip 33a is brought into close contact with the artificial crown T, so that the inside of the periodontal pocket is extremely It can be easily inserted. Furthermore, in the cleaning treatment and the like, since each part of the head portion 30 is temporarily deformed due to bending, the working tip 33a can be easily inserted to a deep position of the implant body.

  In the cleaning procedure, a fluid such as water is released from the release hole 42 in the direction of the action tip 33a as needed, and cooling of the site where the cleaning procedure is performed and removal of wear debris generated by the cleaning procedure Etc. can be done.

  Up to this point, it has been described that the predetermined direction is upward, assuming that the artificial dental crown of the lower jaw is cleaned and the like, but when cleaning the artificial crown of the upper jaw, the handpiece is upside down It is needless to say that the description of the upper and the lower is reversed because it is carried over.

  According to the present invention, the body portion having the neck portion bent upward, and the downward wedge shape formed in a thin-headed shape which becomes thinner gradually as the left and right widths go to the tip while the dimension in the height direction is substantially constant. Since the head portion is integrated with the head portion, the working tip can be easily inserted to a deep position of the implant body inside the periodontal pocket without damaging the implant body or gingiva, and the time for cleaning treatment etc. And improve the healing effect after treatment.

DESCRIPTION OF SYMBOLS 10 ... Handpiece, 20 ... Tip, 30 ... Head part, 30a ... Curved surface, 31 ... Junction part, 32 ... Intermediate part, 33 ... Action part, 33a ... Insertion part, 40 ... Body part, 40a ... Base, 41 ... Neck, 41a ... neck portion, 42 ... discharge hole, 43 ... liquid supply path, T ... artificial crown, G ... gingiva.

Claims (3)

A chip having a body portion and a head portion,
The body portion has a base mounted on a handpiece containing a vibration source, and a neck bent in a predetermined direction with respect to the base;
The head portion has a bowl shape in a direction opposite to the predetermined direction, and has a substantially constant height in the predetermined direction, and has a thin shape in which the width orthogonal to the predetermined direction gradually decreases toward the tip. A chip characterized in that it is formed.   The chip according to claim 1, wherein the body portion is made of metal, the head portion is formed of super engineering plastic, and the body portion and the head portion are integrated. . The tip according to claim 1 or 2, wherein a discharge hole for releasing liquid toward the working tip of the tip is formed in a neck portion of the body portion.

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