JPS6026530B2 - root canal treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wolf canal treatment tool for enlarging a plate canal during dental treatment.

[Conventional technology]

An engine reamer or hand reamer is used to perform root canal enlargement treatment.

Engine reamers have good work efficiency and are suitable for enlarging simple root canals in a short period of time, but in complex root canal treatments there is a risk of perforation, making the treatment uncertain. Not only is it dangerous, but it's also dangerous. On the other hand, hand reamers offer a high degree of safety and reliability of treatment, and are now becoming the mainstream of endodontics in the dental medical world. However, the work efficiency is poor, and the completeness of the root canal enlargement and the skill of the treatment depend heavily on the skill (skill) of the dentist. In addition, with conventional hand reamers, the surgeon's hands and fingers are deeply inserted into the narrow oral cavity, blocking the mouth and protruding, making it impossible to visually see the treatment area from the outside during treatment, and the operator has to fumble around while working. The disadvantage is that it has to be carried out in a state. The same applies to files and other therapeutic needles other than reamers. [Object of the Invention] Therefore, it is an object of the present invention to provide a root canal treatment odor that is easy to use, has good work efficiency, and provides safety and reliability of work.

[Structure of the Invention] The present invention consists of a head that holds reamers, a grip section that is equipped with a mechanism for increasing the reamers or rotating them at the same speed, and a rotating cylinder that connects both. This is a daughter tube treatment odor characterized by the fact that the distance between the two can be adjusted by pulling or pushing the head.
Moreover, FIG. 4 shows the most preferable embodiment in the case of driving to rotate at the same speed.

First, to explain the case of accelerated rotational drive, 1 in the figure
The head is composed of a cap 2 and a head body 3. The cap 2 is attached to the head body 3 by screwing, etc., and normally a confirmation hole 4 is provided at the top of the cap 2, and a reamer 5 (the same applies to files and other therapeutic needles) is inserted through the hole. It is used in a meaning that also includes.
same as below. ) should be able to see if it is correctly positioned. The bottom surface of the head body 3 is closed so that the reamer 5 can be inserted and removed from below. Inside the head body 3, a rotary cylinder 7 having a gear ring 6 in a golden shape at the bottom is housed. The rotary cylinder 7 is inserted into the head body 3 from above after removing the cap 2, and the gear ring 6 rides on the green side 3a of the bottom closed part of the head body 3.
so that it can be rotated within the Reamer 5 is
Push it into this rotary cylinder 7 from below. Reference numeral 8 denotes a holding member, and the one shown is a sliding type, consisting of a horizontal part recessed into a semicircle when looking from above at the reamer side end, and a vertical part. Penetrate the pipe 9.

By moving this holding member 8 forward with a finger, the front end concave portion of the horizontal portion of the holding member 8 can be moved forward into the groove-like neck portion 5 formed in the reamer 5.
Have them play the drum and hold a in their arms. The holding portion 8 may be attached to the head body 3 and rotated horizontally with fingers to hold the grooved neck portion 5a. The front end of the connecting net 9 is embedded and fixed in the head body 3, and the rear end is attached to the palm grip part 10.
It is removably inserted into the case 11 of. Reference numeral 12 denotes a drive shaft extending from the head 1 to the palm grip 10 and rotatably inserted into the connecting pipe 9. A drive gear ring 13 is attached to the front end of the drive shaft, which meshes with the gear ring 6 at right angles and drives it rotationally. .
Further, a driven gear is attached to the rear end of the drive shaft 12. 1
Reference numeral 5 denotes a rotary cylinder which can be rotated with a fingertip, the rear end of which is loosely inserted into the case 11, and a large gear 16 is fixed to the end.

The connecting pipe 9 is inserted into this rotating cylinder 5,
Moreover, the intermediate wall 17 of the case 11 is penetrated. 18 is a small gear that meshes with the large gear 16, 19 is a long gear that meshes with the driven gear 14, and the long gear 19 is connected to the same shaft 2 as the small gear 18.
Fix the river.

The shaft 20 passes through the intermediate wall 17 in a loosely inserted state, and its both ends are supported by support walls 21, 21a. 22 is the drive shaft 12
This is a fixing lever for fixing the connecting pipe 9 in an arbitrary position.By rotating the lever, the connecting pipe 9 is pressed against the intermediate wall 17, and its movement is prevented.

Furthermore, by loosening the fixed lever 22, the connecting pipe 9 and the head can be freely rotated (swingable). 23
is a finger rest for holding fingers when grasping the palm.

Next, the case of same-speed rotation drive will be explained. In FIG. 4, the same reference numerals as in FIGS. 1 to 3 refer to the same parts. 24 is a fixture fixed to the branch end 10a of the palm grip 10, and the drive shaft 12 passes through it rotatably.

The drive shaft I2 is spline coupled to the rotating cylinder 15,
The movement of the rotating cinder 15 is transmitted directly to the drive shaft 12. Reference numeral 25 denotes an angle adjustment fitting rotatably mounted on the fixing fitting 24, into which the drive shaft 12 is inserted.

26 is a head mounting screw for fixing the head 1 to the angle adjustment fitting 25, and 27 is a rotating cinder bearing having a buffer spring at the bottom.

Note that the configuration of the head 1 is similar to that of the above embodiment. [Operation of the Invention] Next, an embodiment illustrating the operation of the present invention will be described. In the case of speed-up driving, a desired reamer 5 is first inserted from below the head body 3 and pushed into the rotary cylinder 7.

At that time, after confirming through the confirmation hole 4 that the head of the reamer 5 is properly seated on the cap 2, the holding member 8
is pushed forward with a finger, and its front end concave portion is aligned with the neck portion 5a of the reamer 5. By doing so, the reamer
The reamer 5 can be held securely to prevent it from falling off. However, even without such a structure, under normal use, simply pushing the reamer 5 tightly into the rotary tube 7 will allow the reamer 5 to be held tightly. It is also possible to hold it firmly there. During treatment, the head is inserted into the patient's oral cavity, and at that time the fixing lever 22 is loosened and the head 1 is pulled appropriately to adjust the distance between the head and the palm grip 10. That is, when the head 1 is pulled, the driving koji 12 slides inside the rotating cinder 15 and is pulled out, and the gear 14 attached to the rear end moves while being meshed with the elongated gear 19. Once pulled out to the desired position, the fixing lever 22 is operated to fix the drive shaft 12 and prevent its movement. Further, the angle of the head is also adjusted by rotation with the fixing lever 22 loosened. Then, hold the palm grip part 10 at the foot of the hand and apply the needle tip of the reamer 5 to the treatment area, using the fingertips (usually the thumb and index finger).
When the rotary cinder 15 is rotated, the large gear 16 fixed thereto rotates the small gear 18 meshing with it. The increased rotational driving force is transmitted from the longest gear 19 to the sheave gear 14 and rotates the drive koji 12. Accordingly, the drive gear ring 13 at the tip of the drive shaft 12
The gear ring 6 is rotated, thereby rotating the rotary cylinder 7 and the reamer 5. Reamer 5 is replaced as appropriate to proceed with the treatment. Next, to explain the operation of the embodiment shown in FIG. 4, the reamer is attached, the head 1 is pulled out by a desired amount,
After adjusting the rotation to a desired angle, the head 1 is inserted into the patient's oral cavity by holding the palm part 10 in the palm of the hand, and the reamer 5 is applied to the treatment area.

When the rotary cinder 15 is rotated with a fingertip, the drive shaft 12 integrated with it rotates, and the drive gear ring 13,
The reamer 5 rotates via the gear ring 6 and the rotating node 7. [Effects of the Invention] Since the present invention is as described above, it can be operated by inserting only the head portion without inserting fingers into the patient's oral cavity, and the length and angle of the head can be adjusted according to the treatment area. This allows you to treat the treatment area reliably and safely while visually checking the treatment area, and to work efficiently.
It has the effect of alleviating patients' aversion to dental treatment.

[Brief Description of the Drawings] Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a front longitudinal sectional view thereof (the head is rotated 90 degrees), and Fig. 3 is a longitudinal sectional view of the head portion. FIG. 4 is a front longitudinal sectional view of another embodiment. Explanation of symbols, 1...Head, 2...Cap, 3...Head body, 5...Reamer, 6...Gear ring, 7
...Rotating tube, 8...Cable member, 9...
...Connection pipe, 10...Grip part, 12.
... Drive shaft, 13 ... Drive gear ring, 15 ...
...Rotating cinder. O' Figure O 2 Figure O 3 Figure Sai 4 Figure

Claims (1)

[Scope of Claims] 1. Consists of a head that holds reamers, a grip section that is equipped with a mechanism for rotating the reamers at increased speed or the same speed, and a rotating cylinder that connects both, and that allows the head to be held relative to the grip section. A root canal treatment tool characterized in that the distance between the two can be adjusted by pulling or pushing. 2. The root canal treatment instrument according to claim 1, wherein the direction of the head is variable.