JPH06304181A - Intra-root canal treating means and needle-like body used for the intra-root canal treating means as well as holder for the same and its housing container - Google Patents

Abstract

PURPOSE:To hold or detach the intra-root canal treating means without allowing the doctor's finger head, etc., to touch cotton and to prevent the pull off of the cotton into the root canal by forming the intra-root canal treating means of a needle-like body inserted with the cotton at its front end and a holding part capable of freely attachably and detachably holding the needle-like body. CONSTITUTION:This intra-root canal treating means is composed of the holding part 2, a connecting part 3 mounted in the holding part 2 and the needle-like body 4 attachably and detachably mounted on the connecting part 3. The fitting hole 7 capable of inserting and fitting a sticking shaft 6 of the holding part 2 is formed on the connecting part 3. The other end side of the connecting part 3 is formed with a fitting hole 8 capable of inserting and holding an insertion shaft 9 of the needle-like body 4. The needle-like body 4 is composed of the insertion shaft 9 and a needle-like fine wire shaft 10. The compressed cotton 5 is hygienically inserted to the needle-like fine wire shaft 10 by the compression effect of an inserting machine so as to enclose the circumference of the detaining part at the front end of the needle-like fine wire shaft 10. As a result, the doctor's finger head, etc., do not touch the part of the cotton in direct contact with the biotissues at all at the time of the intra-root canal treatment and, therefore, the patient's secondary infection is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endodontic treatment instrument used for cleaning the inside of a root canal and applying a patch during endodontic treatment of a carious tooth, and a needle-like body used for the endodontic treatment instrument and a holder thereof. Regarding the storage container.

[0002]

2. Description of the Related Art Endodontic treatment of carious teeth has hitherto been carried out using a treatment tool called a so-called dental broach. Figure 8
A schematic diagram thereof is shown in FIG.
6 and a needle-shaped piano wire 42 fixed to the grip 46 by a fastening portion 41 so as not to rotate.

When the inside of the root canal 45 of the carious tooth 44 is treated by using the broach 40, the operator winds the cotton 43 around the tip portion of the piano wire 42 by the fingertip according to the treatment purpose. That is, when cleaning the inside of the root canal 45,
While preventing the cotton 43 from falling off from the piano wire 42, when applying the patch in the root canal 45, the cotton 43 soaked with the liquid medicine easily separates from the piano wire 42 and becomes the root canal 45.
The winding degree of the cotton 43 is adjusted so as to be filled inside.

[0004]

However, in the conventional method, the cotton 43, which comes into direct contact with the living tissue, is wound around the piano wire 42 by the operator's fingertip, so that the cotton 43 may be contaminated, and the affected area may be affected. There is a problem that secondary infection of tissues is also predicted.

[0005] Such problems may be solved by using rubber gloves used as a protection measure against viral infectious diseases such as AIDS and hepatitis even in a medical institution performing dental treatment. Due to its elasticity, it is much more difficult to wrap the cotton 43 around the piano wire 42 in a bare hand state. In particular, as described above, the winding degree of the cotton 43 is adjusted according to the purpose of treatment. Is almost impossible.

The present invention has been devised in view of the above problems, and its purpose is to allow a doctor's finger tip or the like to be
An object of the present invention is to provide an endodontic treatment instrument or the like that can hold or detach cotton without coming off to the inside of the root canal according to the purpose of treatment without touching the cotton that comes into direct contact with the biological tissue.

[0007]

DISCLOSURE OF THE INVENTION The present invention is based on an endodontic treatment instrument comprising a needle-shaped body having cotton attached to its tip and a gripping portion capable of detachably holding the needle-shaped body. A needle-like body for use in an endodontic treatment device, which is made by attaching cotton to a needle-like thin wire having a spiral locking portion formed at the tip,
Further, according to the type of length or thickness of the cotton attached to the tip of the needle-shaped fine wire, a part of the needle-shaped body is used for the endodontic treatment instrument by coloring according to the type. A needle-shaped body holding tool capable of holding a plurality of needle-shaped bodies used for an endodontic treatment instrument, which is a needle-shaped body, and forms a box body in which an upper surface portion is opened and a lower surface portion is opened. A needle-like body holder in which a holding plate having a hole for inserting and holding the needle-like body is locked to the box, and an elastic material is laid on the lower surface of the box A container for accommodating a needle-shaped body holder, which is provided with a lid that can be opened and closed on the upper surface, is covered by the lid, and can hold the box body at a predetermined inclination. This is a development of a container for accommodating a needle-shaped body holder including a holding plate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 illustrates an overall side view of the present invention. An endodontic treatment instrument 1 has a grip portion 2, a connection portion 3 attached to the grip portion 2 in this example, and a detachable attachment to the connection portion 3. And a needle-shaped body 4 attached to the.

The gripping portion 2 has a cylindrical shape at a portion to be a doctor's grip, and in this example, a hollow portion 2A is formed at a substantially middle portion thereof so as to provide a good grip feeling. or,
As shown in FIG. 2, the grip portion 2 has two protruding shafts 6 projectingly formed on the surface facing the connecting portion 3 in this example.
In addition to the two projecting shafts, one prism or a shaft having an elliptical shape or the like may be used.

The connecting portion 3 is formed with a fitting hole 7 into which the protruding shafts 6, 6 of the grip portion 2 can be inserted and fixed, and serves to prevent rotation when the two are connected. Further, a fitting hole 8 into which a inserting shaft 9 of a needle-shaped body 4 described later can be fitted and held is formed on the other end side of the connecting portion 3.

The needle-shaped body 4 is composed of an insertion shaft 9 and a needle-shaped thin wire shaft 10. The insertion shaft 9 has a diameter slightly larger than that of the needle-shaped thin-wire shaft 10, and the connecting portion 3 is fitted therein. It is fitted and held in the hole 8. Further, as shown in FIG. 3 (A), the needle-shaped thin wire shaft 10 may be processed with a helical locking portion 10A in a direction that is clockwise when viewed from the A direction in this example. The locking portion 10A is formed into a spiral groove or, on the contrary, is a raised convex portion to form a screw portion, but the lead thereof may be variously modified other than the illustrated one. Further, a compression cotton 5 is attached to the tip end of the needle-shaped thin wire shaft 10 so as to surround the periphery of the engaging portion 10A, and the compression cotton 5 is compressed by a mounting machine (not shown). It is hygienically attached to the needle-shaped fine wire shaft 10.

As a material for the needle-shaped body 4, soft elastic polyethylene is preferable in consideration of workability and flexibility according to the shape of the root canal, but a conventional steel wire rod may be used.

Further, the dimensions of the axial length L and the axial diameter D of the compressed cotton 5 are thick, thin, long or short in advance because there are individual differences in the shape of the root canal to be treated. It is also possible to prepare various things such as those prepared in advance and color the end surface 9A of the insertion shaft 9 so as to distinguish them at a glance. In addition to the end surface 9A of the insertion shaft 9, the side portion 9B and the material itself may be colored with respect to the colored portion.

Next, the needle-shaped body holder 11 for holding the plurality of needle-shaped bodies 4 will be described with reference to FIGS. 4 to 5. The needle-shaped body holder 11 has a box-shaped body having an open upper surface and an opening 12 on the lower surface, and has a holding hole 13A into which the needle-shaped body 4 can be inserted and held. The holding plate 13 and the elastic member 14 laid on the lower surface of the needle-shaped body holding tool 11 are used.

The holding plate 13 is placed on a locking frame 11A formed around the side of the needle-shaped body holding tool 11 and is held so that the tip of the needle-shaped body 4 does not contact the elastic material 14. There is.
Further, the holding hole 13A has a dimension of substantially the same diameter as the insertion shaft 9 portion of the needle-shaped body 4, and can hold the insertion shaft 9. further,
In the present example, the bottom surface of the needle-shaped body holding tool 11 is opened in a rectangular shape, and an elastic material 14 such as a foamed resin sheet is placed on the side edge thereof.

One holding plate 13 may hold one type of compressed cotton 5 (size and shape of compressed cotton 5), or a plurality of types of compressed cotton 5 may be arranged.

Next, a storage container 20 for accommodating the needle-shaped body holder 11 and capable of being conveniently used will be described with reference to FIG. The storage container 20 has an upper plate 25 that can be opened and closed on the upper surface.
And a tilted holding plate 27, 28 capable of holding the needle-shaped body holding tool 11 at a predetermined tilt with respect to the horizontal plane.

The storage container includes a front wall 22, a lower plate 23 and a back plate 2.
4 and the left and right side walls 21, 21 form a container having an upper open structure, and an upper plate 25 is pivotally attached to the upper surface of the container via a clamp portion 33 that can be alternately opened and closed by so-called one push. When the plate 25 is closed, the storage container 20 is in a substantially sealed state.

The upper plate 25 is a piece of the left and right side walls 21.
The shaft 26 is rotatably supported by a shaft 26 and is constantly urged upward by a spring or the like (not shown). Clamp part 33
Has a well-known structure including a projecting piece 31 attached to the upper plate 25 side and a holder 32 that is operated by the projecting piece 31 and can hold and release the projecting piece 31.

The inclined holding plates 27 and 28 are substantially "L".
The needle-shaped body holding tool 11 can be held at a predetermined inclination angle with respect to the lower plate 23 by having a mold shape and arranging them so as to face each other. The inclination angle can be designed in various ways,
Usually, about 30 degrees with respect to the horizontal plane is desirable.

Further, in this embodiment, the desiccant 34 is placed inside the storage container 20 at a position corresponding to the bottom surface of the needle-shaped body holding tool 11 in the inclined holding state of the needle-shaped body holding tool 11. To illustrate. Thereby, the compressed cotton 5 of the needle-shaped body 4 housed in the needle-shaped body holder 11 can be prevented from being moistened. In addition to the drying material, an antibacterial material may be arranged, and in such a case, it is possible to prevent germs from propagating on the compressed cotton 5.

Next, the operation of the present invention configured as above will be described. The needle-shaped body holder 11 is stored in advance in the storage container 20 as shown in FIG. 7. In this state, when treating the root canal, the upper plate 2 of the storage container 20
Release 5 upwards and select a compressed cotton 5 sized as closely as possible to the root canal shape of the patient. At this time, these can be discriminated by the color of the needle-shaped body 4.

Next, the fitting hole 8 of the connecting portion 3 is inserted into the insertion shaft 9 of the needle-shaped body 4. At this time, since the needle-shaped body holding tool 11 is inclined and held in the storage container 20, it can be easily inserted,
Operation can be done smoothly. After the needle-shaped body 4 is inserted into the connecting portion 3, when the grasping portion 2 is pulled out toward the front, the needle-shaped body 4 is pulled out of the holding plate 13 due to the frictional force between them, and the attachment to the connecting portion 3 is completed. As a result, the endodontic treatment device 1 is completed without directly touching the compressed cotton 5 with a fingertip, and the portion of the compressed cotton 5 can be inserted into the root canal of a patient.

Next, the case where the purpose of the endodontic treatment is to clean and remove the endodontic root canal will be described. The operator holds the grip portion 2 and presses and inserts the compressed cotton 5 into the endodontic root canal of the patient. And rotate it clockwise. This allows
The contaminants in the root canal adhere to the compressed cotton 5 and can be removed.

When the grip portion 2 is rotated clockwise,
Even when the compressed cotton 5 is pressed firmly into the root canal and stands still and only the needle-shaped body 4 rotates, the needle-shaped fine wire shaft 10
Helical groove or raised locking portion 10A formed on
By the screw action of, the compressed cotton 5 moves upward with respect to the needle-shaped fine wire shaft 10, that is, to the operator side, and the compressed cotton 5 can be prevented from coming off from the needle-shaped thin wire shaft 10.

On the other hand, when the purpose of the endodontic treatment is to apply the patch inside the root canal, the operator presses and inserts the portion of the compressed cotton 5 soaked with the liquid medicine into the root canal of the patient, and counterclockwise. Rotate around. As a result, the compression cotton 5 moves downward with respect to the needle-shaped thin wire shaft 10, that is, toward the root canal side by the screw action of the locking portion 10A formed on the needle-shaped thin wire shaft 10, and is compressed from the needle-shaped thin wire shaft 10. The cotton 5 can be detached.

When the above treatment is completed, the needle-shaped member 4 that has been used up is extracted from the connecting portion 3 and discarded as medical waste, and when the treatment is performed again, the needle 3 is newly added to the connecting portion 3.
The needle-shaped body 4 may be attached.

In this example, the needle-shaped fine wire shaft 10 of the needle-shaped body 4 is used.
The example in which the so-called right-handed screw engaging portion 10A is formed is illustrated. However, it is needless to say that the above operation is reversed when the needle-shaped thin wire shaft 10 is formed with a left-handed screw.

Further, the connecting portion 3 may come into contact with the inside of the oral cavity, and since the needle-shaped body 4 is frequently held, it may be soiled or the fitting hole 8 may be damaged.
In this case, the connecting portion 3 can be removed from the grip portion 2 and only this portion can be replaced. The needle-shaped body holder 11
After using all the needle-shaped bodies 4 held by the needle-shaped body 4, the needle-shaped body holder 11 can be exchanged as one unit.

[0030]

According to the present invention, since the needle-shaped body to which cotton is attached is detachably provided in the grip portion, the fingertip of the doctor or the like comes into direct contact with the living tissue during endodontic treatment. Since the cotton part is not touched at all, secondary infection of the affected area can be prevented.

Further, in the needle-shaped body in which the cotton is attached by forming the spiral locking portion at the tip, the cotton is needled by only an extremely simple operation of selecting the rotation direction of the endodontic treatment instrument. It is possible to decide whether to remove the cotton from the shape or to prevent it from falling off, freeing you from the troublesome work of adjusting the winding amount of the compressed cotton with your hand as before, and attaching the cotton to the needle in advance. Therefore, treatment can be performed while wearing rubber gloves.

Furthermore, if a plurality of types of needle-shaped bodies are manufactured according to the individual differences in the shape of the root canal of the patient, the versatility increases,
Moreover, these can be easily discriminated at a glance by coloring the needle-shaped body, and the therapeutic action can be facilitated.

Furthermore, by using a holder capable of holding a plurality of needle-shaped bodies and a storage container capable of holding the holder at a predetermined inclination angle, workability in attaching the needle-shaped bodies to the connecting portion is improved. Is greatly improved.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the endodontic treatment device of the present invention.

FIG. 2 is a partial side view of the endodontic treatment device of the present invention.

FIG. 3 is a side view of an embodiment of the needle-shaped body of the present invention.

FIG. 4 is a plan view of a needle-shaped holder of the present invention.

5 is a sectional view taken along line BB in FIG.

FIG. 6 is a perspective view showing an embodiment of an accommodating container for a needle-shaped holder according to the present invention.

FIG. 7 is a schematic diagram for explaining the operation of the present invention.

FIG. 8 is a schematic view for explaining a conventional endodontic treatment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Root canal treatment tool 2 Grasping part 3 Connection part 4 Needle-shaped body 5 Compression cotton 6 Protruding shaft 7 Insertion hole 8 Insertion hole 9 Insertion shaft 10 Needle-shaped fine wire shaft 10A Locking part 11 Needle-shaped body retainer 11A Locking frame 12 Opening 13 Holding plate 20 Storage container 25 Upper plate 27 Tilt holding plate 28 Tilt holding plate

Claims (5)

[Claims] 1. An endodontic treatment device comprising a needle-shaped body having cotton attached to its tip and a grip portion capable of detachably holding the needle-shaped body. 2. A needle-shaped body for use in an endodontic treatment instrument, comprising cotton attached to a needle-shaped thin wire having a spiral locking portion formed at its tip. 3. A needle-shaped body used in the endodontic treatment device according to claim 1, wherein the cotton is attached to the tip of the needle-shaped thin wire according to the type of length or thickness of the cotton. A needle-shaped body for use in an endodontic treatment device, wherein a part of the needle-shaped body is colored according to the type. 4. A needle-shaped body holder capable of holding a plurality of needle-shaped bodies used in the endodontic treatment device according to claim 1, wherein the box has an open upper surface and an open lower surface. A needle-like member that is formed into a body, has a holding plate in which the needle-like member is inserted, and in which a hole capable of holding the needle-like member is formed, is locked to the box body, and an elastic material is placed on the lower surface of the box body Body holder. 5. An accommodating container for accommodating the needle-shaped body holder according to claim 4, wherein the accommodating container is provided with an openable and closable lid on an upper surface thereof, and is covered with the lid and has a predetermined box shape. An accommodating container for accommodating a needle-shaped body holder, which comprises an inclined holding plate that can be held at an inclination.