JPS6026531B2 - root canal treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine tube treatment odor that performs radical treatment in the dental medical field and that performs a so-called contrast movement (a movement that moves up and down and oscillates).

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 for complex root canal treatments, there is a risk of perforation, making the treatment uncertain. Not only dangerous, but also dangerous. On the other hand, hand reamers offer safer and more reliable treatment, and are now becoming the mainstream for 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 fingers and fingers are deeply inserted into the narrow oral cavity, blocking the mouth, making it impossible to see the treated area from the outside during treatment, and the operator has to fumble around while performing the procedure. There are unavoidable drawbacks. The present invention eliminates the above-mentioned drawbacks, allows efficient and safe treatment while visually observing the treatment area, and furthermore, uses a reamer,
It is an object of the present invention to provide a root canal treatment tool that can be easily and reliably loaded with files and the like, and that can be contrast-driven accurately.

The present invention provides a cap consisting of an outer cap and an inner cap, from which approximately half of the cap is vertically removed, and a protrusion is formed on the inner side of the outer cap, a protrusion is formed on the inner lower end of the inner cap, and a thread is threaded on the upper end. At the same time, a driven cylinder with a hole bored in the side wall is provided, and the driven cylinder is loosely inserted into the head, and the above-mentioned cap is screwed onto this, and an operating protrusion is attached to the tip of the drive shaft extending from the palm part, eccentrically with respect to the drive shaft. This is a treatment odor for the pharyngeal tube characterized by the actuating protrusion being fitted into the hole of the driven tube, and the drawings show an embodiment thereof.

In the figure, numeral 1 denotes a head, which has a through hole 2 into which the driven cylinder 3 is loosely inserted for contrast movement. A hole 4 is provided in the side wall of the driven cylinder 3. The hole 4 may be depressed from the outside or may be a through hole. The head of the driven barrel 3 is threaded, and a cap 6 for holding the reamer 5 (the same applies to files and other therapeutic needles, so the term is used to include them. The same applies hereinafter) is threaded there. Insert. The cap has a double structure of an outer cap 7 and an inner cap 8, and approximately one half (the inner cap 8 is exactly half) is vertically removed to allow the reamer 5 to be loaded from the side. The inner surface of the outer crown 7 is threaded, and the inner lower end of the inner crown 8 is formed with a protrusion 8a that fits into the circumferential groove 53 provided on the reamer 5. Reference numeral 9 denotes a connecting pipe that connects the head 1 and the grip portion 10, into which the driving koji 11 is rotatably inserted.

A disk 12 is attached to the head side end of the drive shaft 11,
The disc 12 is provided with an actuation protrusion 13 eccentrically relative to the drive shaft 11.
is provided and faces into the hole 4 in the side wall of the driven cylinder 3.
Regarding the contratwist drive of the reamer 5 in such a configuration, there are two methods: a method in which rotation by the fingertip is accelerated and transmitted (FIGS. 2 and 3), and a method in which the rotation is transmitted as is (FIG. 4).

First, an example of the former method will be described. Reference numeral 14 is a case made of a material such as plastic, which houses a drive shaft 11 drive mechanism. Reference numeral 15 denotes a rotating cinder mounted on the connecting pipe 9, and the rear end thereof is rotatably inserted into the case.

16 is a large gear attached to the inner end of the case 14 of the rotating cinder 15, and 17 is a small gear that meshes with this.

18 is a long gear disposed on the same shaft 19 as the small gear 17, and the shaft 19 has both ends supported by support walls 20, 21.

The connecting pipe 9 and the drive shaft 11 are connected to the thick wall part 2 of the case 14.
2 loosely and deeply into the case 14, then insert the drive shaft 11
A driven gear 23 that meshes with the elongated gear 18 is attached to the tip. Reference numeral 24 denotes a fixing lever for fixing the drive shaft 11 at an arbitrary position.By rotating this lever, the connecting pipe 9 is pressed against the thick wall portion 22, thereby preventing its movement.

Also, by loosening the fixed lever 24, the connecting pipe 9
And the head becomes freely rotatable. Reference numeral 25 denotes a finger rest for hanging the fingers when gripping the hand.

Next, the case of the latter type of same-speed rotational drive will be explained. In FIG. 4, the same reference numbers as in FIGS. 1 to 3 refer to the same members.

Reference numeral 26 denotes a fixture fixed to the branched end 10a of the palm portion 10, to which the drive shaft 11 is rotatably mounted.

The driving rod 11 is integrated with the rotating cinder 15 so that the movement of the rotating cinder 15 is directly transmitted to the driving shaft 11. 2
Reference numeral 7 denotes an angle adjustment fitting rotatably mounted on the fixing fitting 26, into which the drive shaft 11 is inserted.

28 is a head mounting screw for fixing the head 1 to the angle adjustment fitting 27, and 29 is a rotating cinder bearing having a buffer spring at the bottom.

Next, an embodiment illustrating the operation of the present invention will be described. First, in the case of speed-up driving, a desired reamer 5 is pushed into the inner crown 8 of the cap 6 from the inside, and the protrusion 8a of the inner crown 8 is It is engaged with the circumferential groove 5a of the reamer 5.

In this state, insert the reamer 5 into the driven cylinder 3 from above,
Screw the outer crown 7 into the driven cylinder 3. In this way, the reamer 5 is firmly held on the head 1 and ready for operation. During treatment, the head is inserted into the patient's oral cavity, at which time the fixing lever 24 is loosened, the head 1 is stretched out as appropriate, and the distance between the head 1 and the palm grip 10 is adjusted. When the head 1 is pulled, the drive shaft 11 slides inside the rotary cinder 15 and is pulled out, and the driven gear 23 moves while meshing with the elongated member 19. Once pulled out to a desired position, the fixing lever 24 is operated to fix the drive shaft 11 and prevent its movement. The angle of the head 1 is also adjusted by rotation with the fixing lever 24 loosened. Then, grasp the grip part 10 and use the reamer 5.
When you apply the tip of the needle to the treatment area and rotate the rotary cinder 15 with your fingertips (usually your thumb and forefinger), the large gear 16 fixed to it rotates the small gear 17 that meshes with it, and the amplification is performed there. The rotational driving force is transmitted from the longest gear 18 to the driven gear 23, and the driving koji 11 rotates. Along with this, the disk 12 at the tip of the drive shaft 11 rotates, and the actuating protrusion 13 provided thereon rotates eccentrically, acts on the driven tube 3 while remaining in the hole 4, and is held there by the driven tube 3. Make the reamer 5 perform contrast movement. Reamer 5 is replaced as appropriate. Next, to explain the operation of the embodiment shown in FIG. 4, after attaching the reamer 5 and adjusting the rotation of the head to a desired angle, grasp the palm grip 10 and insert the head into the patient's oral cavity. Apply number 5 to the treatment area.

When the rotary cinder 15 is rotated with a fingertip, the drive shaft 11 integrated therewith rotates, and the operating protrusion 13 at the tip drives the driven cylinder 3 and the hammer 5 integrated therewith in a contra-twist manner. Since the present invention is as described above, it is possible to easily and reliably load a file reamer or the like into the patient's head, and it is also possible to reliably cause the contrast movement of the reamer or the like, and to insert the finger into the patient's oral cavity. Since it can be operated without inserting it, it is possible to treat the treatment area safely, reliably and efficiently while visually observing the treatment area, and it also has the effect of alleviating the patient's aversion to dental treatment.

[Brief explanation of the drawing]

FIG. 1 is a front longitudinal cross-sectional view of essential parts of an embodiment of the present invention, FIG. 2 is a front view showing an example of the drive system of the present invention, and FIG. 3 is a front longitudinal cross-sectional view thereof (the head is rotated 90 degrees. ), FIG. 4 is a front vertical sectional view showing another drive method.
Explanation of symbols: 1... Head, 3... Driven cylinder, 4... Hole, 6... Cap, 9...
...Connection pipe, 10...Grip part, 11.
... Drive shaft, 12 ... Disc, 13 ...
...Activating protrusion. Figure 2, Figure 3, Figure 4

Claims (1)

[Scope of Claims] 1. A cap consisting of an outer cap and an inner cap from which approximately half of the cap is vertically removed is provided, and a thread is carved on the inner side of the outer cap, and a protrusion is formed on the inner lower end of the inner cap, and a protrusion is formed on the inner lower end of the inner cap. A driven cylinder is provided with screws and a hole bored in the side wall, and is loosely inserted into the head, and the above-mentioned cap is screwed onto this. Also, an operating projection is provided at the tip of the drive shaft extending from the palm part, eccentrically with respect to the drive shaft. Attach the child,
The root canal treatment instrument is constructed by fitting the actuating protrusion into the hole of the driven cylinder and by pulling or pushing the head to adjust the distance between the head and the palm grip. 2. The root canal treatment instrument according to claim 1, wherein the direction of the head is variable.