JPH10192300A - Cutting, polishing, and cleaning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately clean, polish, and cut a tooth face without hurting gingiva and periodontal tissue, by converting dynamic energy transmitted from a holding part to arch motion by a power converting mechanism and moving the tip end element by the converted circular motion. SOLUTION: A motor 2 is equipped inside a holding part 1 to be held by fingers. Rotation of the motor 2 is transmitted by a shaft 3 to a gear 4 in the tip end part 9 and converted by 90 deg. by a gear in the back of the convertor 5. The converted rotation motion is converted to arch motion centering on the fulcrum 7 by slide motion of a shaft on the surface of the convertor 5 and a groove on the main shaft 6 to make the tip end element 8 perform arch motion. Thereby motion along gingiva and periodontal tissue, i.e., motion without harming tissue, is enabled at around gingival crest, interdental papilla, and periodontal pocket, and, since the tooth face is caught by a face, accurate cleaning can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is particularly suitable for use in the field of dentistry. The present invention relates to an apparatus for cutting, polishing and cleaning an object, particularly around a gingival margin, a periodontal pocket or a tooth. It is suitable for use in cleaning and polishing teeth located around the papillae.

[0002]

2. Description of the Related Art There is a handpiece for cutting and polishing teeth, a device called a turbine in which power is transmitted pneumatically or mechanically from the outside and a leading terminal rotates or linearly moves.

[0003]

In the conventional handpiece, the movement of the front terminal is such that the movement of the front terminal is performed in accordance with the rotation axis of the front terminal. As a result, the surface of the tip terminal in contact with the tooth surface becomes linear or dot-shaped, causing a problem in the movement of tracing the tooth surface. In addition, although the tip terminal of the type in which the tip terminal operates in a straight line traces the surface, in the case of cleaning the teeth around the gingival margin, around the periodontal pocket, around the interdental papillae, there has been a problem that the gum is easily damaged.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to properly clean, polish, and precisely clean tooth surfaces located particularly around the gingival margin, periodontal pocket, and interdental papillae.
An object of the present invention is to provide a device for cutting and preventing damage to gums, periodontal pockets, gingiva including periodontal papillae, and periodontal tissue.

[0005]

The information input device of the present invention employs the following technical means. According to a first aspect of the present invention, there is provided a cutting / polishing / cleaning apparatus which converts mechanical energy transmitted from a gripping portion to a tip of a gripping portion gripped by a finger into a circular motion by a power conversion mechanism and converts the energy. It is adopted that the tip terminal is moved by a circular motion.

[0006]

Effects of the Invention and Effects of the Invention

According to the first aspect of the present invention, there is provided a cutting and polishing apparatus for converting mechanical energy transmitted from a gripping portion to a tip of a gripping portion gripped by a finger into a circular motion by a power conversion mechanism and converting the energy. Gingiva, interdental papillae,
The cleaning, cutting, and polishing movements on the surrounding tooth surfaces can be performed safely and reliably without causing damage to the gums such as the periodontal pocket and the periodontal tissue.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a cutting / polishing / cleaning apparatus according to the present invention will be described with reference to the embodiment shown in FIGS. [Configuration of Embodiment] The first embodiment proposes use as a cleaning tool. FIG. 1 is a view of a working portion around a gripping portion of the cleaning device in the first embodiment, FIG. 2 is an enlarged view of a power conversion unit, and FIGS. Show.

The cutting and polishing apparatus according to the present invention has a gripper 1 to be gripped by a finger, and a motor 2 is installed inside the gripper 1. The rotation of the motor 2 is transmitted by the shaft 3 to the gear 4 in the distal end 9, and the rotation is converted by 90 ° by the gear on the back of the transducer 5. The converted rotational motion is converted into an arc-shaped motion about the fulcrum 7 by the sliding motion of the shaft of the surface portion of the transducer 5 and the groove of the main shaft 6. As a result, the end terminals 8
Perform a circular motion.

[Effects of the Embodiment] The cleaning device of the present embodiment
Movement along the gums, periodontal tissue around the gingival margin, interdental papillae, periodontal pocket,
That is, a motion is performed so as not to damage the tissue, and the tooth surface is captured by the surface, so that accurate cleaning can be performed.

[Modification] In the above embodiment, a cleaning element is used for the front terminal, but a cutting element, a polishing element and the like may be used.

In the above embodiment, the tip terminal, the gear structure, and the like are fixed, but they may be airtightly packaged and autoclavable. In particular, the unit may be detachable. The open end side of the gear structure may be sealed with an elastic body such as rubber.

In the above embodiment, the cooling means is not particularly provided, but a structure having a cooling means such as water may be employed. The cooling water may be used also as a means for injecting teeth, or may be circulated. Is also good. In this case, the cooling water may be changed to various liquids having good electric conductivity.

In the above embodiment, the power is provided in the handpiece, but a fluid such as a flexible pipe, air, oil, a universal joint, a shaft,
It may be transmitted by a belt or the like or a combination thereof.

If the cleaning is performed by using a three-dimensional measuring device such as an MRI, the cleaning position can be confirmed. If a material that can resonate the tip terminal or a substance that can resonate in the tip terminal is provided, diagnosis such as shape measurement, probing, etc. , Measurement, educational activities, etc. can be easily performed by the resonance measurement method.

In the above embodiment, the front terminal is directly mounted on the power converter having a gear structure via the main shaft. However, the front terminal can be freely replaced by using a chuck or the like for mounting the front terminal. Such a thing may be used.

In the above embodiment, an elastic tip is used for the tip terminal. However, the tip may have any shape or material such as needle, saw, flea or the like, and metal, wood, plastic, ceramics or the like. But it is good. Further, it may be used not only for cleaning but also for cutting, polishing, treatment, position, shape measurement, and the like. (Examples are shown in FIGS. 3 to 7.) Further, as shown in FIGS. 6 and 7, the blade (FIGS. 6 and 7) 10 may be used for removing tartar and the like. In this case, the circular motion may be operated in an intermittent mode of at least one stroke or a combination of continuous and intermittent operation. Also, it may be used in combination with ultrasonic vibration. Here, FIG. 6 is particularly suitable for pushing and cutting, and FIG. 7 is suitable for pulling and cutting. The surface of the above-mentioned polishing tip terminal may be a smooth surface, a surface having irregularities, a polishing surface provided with abrasive particles such as apatite or alumina oxide, or a combination thereof. Polishing and cleaning may be performed using a paste or the like. Further, a restoration such as resin, amalgam, cement, or the like may be polished.

In the above embodiment, the fulcrum 7 is fixed. However, the fulcrum 7 may be spatially variable such as up and down to change the stroke and the moment of inertia.

The back electromotive force from the motor may be detected and used. That is, the load at the front terminal is calculated based on the strength of the back electromotive force, and the viscosity of pus or the like is calculated and used for differential diagnosis, or a constant speed operation or a constant torque operation is performed based on the calculated result. In the case of this front terminal control, a pressure-torque feedback may be provided that matches the contact pressure and torque of the front terminal with the object to be cleaned such as teeth by the operator according to the operator's preference. And in the case of this terminal control, the position, velocity, acceleration, angular velocity,
It is even better if an angular acceleration sensor is attached to a moving element such as a terminal, a gear, a shaft, or a main shaft, and the result is used.

In the above-mentioned embodiment, it was used for dentistry, but it is not trapped in this field.

In the above-described embodiment, the cleaning tip is used. However, the cutting tip or the grinding tip is not limited to the shape of the tip and is freely determined by the operator.

[0021]

[Brief description of the drawings]

FIG. 1 is a diagram of a grip, a tip, and a terminal.

FIG. 2 is a diagram of a power conversion unit.

FIG. 3 shows one shape of a disk-shaped tip terminal.

FIG. 4 shows one shape of a triangular point terminal.

FIG. 5 shows one shape of a triangular point terminal.

FIG. 6 shows one shape of a tip terminal with a blade.

FIG. 7 shows one shape of a tip terminal with a blade.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grasping part 2 Motor 3 Shaft 4 Gear 5 Transducer 6 Main shaft 7 Support point 8 Tip terminal 9 Tip part 10 Blade

Claims (1)

[Claims] 1. A method according to claim 1, wherein the mechanical energy transmitted from the grip portion to the tip of the grip portion gripped by the finger is converted into an arc-shaped motion by a power conversion mechanism, and the tip terminal is moved by the converted arc-shaped motion. Cutting, polishing and cleaning equipment that performs cutting, polishing, cleaning, diagnosis, etc.