JP2021010684A - Dental handpiece, dental handpiece management system, and method of replacing optical fiber for dental handpiece - Google Patents

Abstract

To provide a dental handpiece whose optical fiber is easy for a user to replace.SOLUTION: A dental handpiece 1 comprises: a head 2 disposed at its tip to detachably attach a tool 7 for treating an affected part; a connecting part 3 disposed at its rear end; and plural guide members 4 for communication between the head 2 and the connecting part 3. The dental handpiece is used while connecting the connecting part 3 to a dental unit provided with supply means for supplying energy. The guide members 4 include supply pipes 42 for supplying energy to the head 2. At least one of the guide members 4 has insertion means 41 capable of attaching/detaching and inserting a flexible optical fiber 5 between the connecting part 3 and the tool 7.SELECTED DRAWING: Figure 2

Description

The present invention relates to a dental handpiece having an optical fiber, a dental handpiece management system, and a method for exchanging an optical fiber for a dental handpiece.

Conventionally, as a dental handpiece provided with an optical fiber (optical fiber cable), for example, the dental handpiece described in Patent Document 1 is known. The dental handpiece described in Patent Document 1 is a light guide member (optical fiber) for lighting for supplying light from a light source to a patient's mouth so that an operator can clearly observe the surgical situation. Is used.

Generally, as the optical fiber, quartz glass having a small light transmission loss or a glass optical fiber such as silica glass is used. Glass optical fibers are rigid and have the property of being vulnerable to bending. Therefore, the optical fiber used for the dental handpiece is fixedly arranged in the dental handpiece.

The optical fiber described in Patent Document 1 is supported by fixing a base end portion to a connecting portion (connector) and inserting the tip into a guide tube installed straight up to the center portion in the front-rear direction of a hollow sleeve to connect. It is arranged from the part to the head part (cartridge).

Such dental handpieces are repeatedly autoclaved in daily medical care, resulting in a problem of reduced illuminance due to deterioration of optical fibers. In that case, the user needs to ask the manufacturer for repair, and the manufacturer needs to disassemble the dental handpiece or replace the parts for repair.

Special Table 2000-508951 (Fig. 1)

However, in the conventional dental handpiece, when the optical fiber deteriorates or a defect occurs, the user needs to request the manufacturer to repair it, and it takes time from the request to the completion of the repair. ..

Therefore, in the dental handpiece, when the optical fiber deteriorates and the illuminance decreases, the user can easily replace the optical fiber, the dental handpiece, the dental handpiece management system, and the optical fiber for the dental handpiece. A replacement method was desired.

Therefore, it is an object of the present invention to provide a dental handpiece, a dental handpiece management system, and a method for replacing an optical fiber for a dental handpiece, in which a user can easily replace the optical fiber.

In order to solve the above problems, the present invention comprises a head portion arranged at the tip portion and to which a tool for treating the affected area is detachably attached, a connecting portion arranged at the rear end portion, and the head portion. A dental handpiece having a plurality of guide members communicating with the connecting portion, and connecting the connecting portion to a dental unit provided with a supply means for supplying energy, wherein the guide member is used. Includes a supply pipe that supplies energy to the head portion, and at least one of the guide members is an insertion means capable of attaching / detaching and inserting a flexible optical fiber between the connection portion and the vicinity of the tool. It is characterized by having.
Here, the "energy" is light such as illumination light or laser light, liquid such as water or cleaning liquid, gas such as air, electric power, or the like.

Further, in the dental handpiece management system of the present invention, a head portion arranged at the tip portion and a tool for treating the affected area is detachably attached, a connecting portion arranged at the rear end portion, and the head. Dental dentistry including a plurality of guide members that communicate the portion and the connection portion, an insertion means arranged in the vicinity of the tool from the connection portion, and a flexible optical fiber inserted into the insertion means. A communication unit that transmits and receives information between a handpiece, a dental unit having a supply means for supplying energy to the connection unit, and an information sharing destination having a processing unit capable of communicating via a communication network. , The storage unit that stores the illuminance data of the optical fiber or the management data of the optical fiber, the illuminance detected by the illuminance detecting means under a predetermined constant condition, and the illuminance data are compared. When the illuminance of the flexible optical fiber is low, or when the age of the flexible optical fiber recorded in the management data is compared and the endurance period has passed, the dental unit, information. A notification means for notifying the deterioration and replacement of the flexible optical fiber on the display unit of the sharing destination manufacturer or the user's terminal, and a replacement flexible optical fiber on the terminal of the information sharing destination manufacturer. It is detected that the illuminance has improved by comparing the newly detected illuminance with the illuminance data when the user exchanges the delivered flexible optical fiber with the ordering means for ordering automatically or arbitrarily. It is characterized in that it includes an optical fiber detecting means for updating the management data and an updating means for updating the management data.

Further, in the present invention, the head portion arranged at the tip portion and the tool for treating the affected area is detachably attached, the connecting portion arranged at the rear end portion, and the head portion and the connecting portion are provided. A plurality of guide members that communicate with each other, an insertion means arranged from the connection portion to the vicinity of the tool, and an insertion means that are freely arranged through the insertion means to allow light radiated from a light source to enter from one end. A method of exchanging an optical fiber for a dental handpiece including an optical fiber emitted from the other end, wherein the optical fiber is formed of a flexible material and the optical fiber is inserted from one end or the other end of the insertion means. It is characterized in that it is inserted and arranged, and the picking allowance formed at the end of the optical fiber is pulled out or replaced by being taken out from the insertion means by pushing out.

The present invention can provide a dental handpiece, a dental handpiece management system and a method for replacing an optical fiber for a dental handpiece, in which the user can easily replace the optical fiber.

It is a central part enlarged schematic vertical sectional view which shows the dental handpiece which concerns on 1st Embodiment of this invention. FIG. 2 is a sectional view taken along line II-II of FIG. 1, showing a state when the optical fiber is separated. It is a side view which has a partial cross section which shows a dental handpiece, (a) shows the state when there is a pinch margin at the tip of an optical fiber, and (b) is the state when there is a pinch margin at the tip of an optical fiber. Indicates the state. It is a conceptual diagram which shows the dental handpiece management system which concerns on 2nd Embodiment of this invention. It is a main part perspective view which shows the dental handpiece which concerns on 2nd Embodiment of this invention. It is a schematic side view of the main part which has a partial cross section which shows the dental handpiece when the head part is covered with the detection aid. It is a flowchart which shows the procedure in the case of detecting and notifying the deterioration of an optical fiber by the illuminance of the light emitted from the optical fiber. (A) to (e) are explanatory views which show the modification of the guide member. (F) to (i) are explanatory views which show the modification of the guide member. (J) to (l) are explanatory views which show the modification of the guide member. (M) and (n) are explanatory views which show the modification of the guide member. (A) to (e) are explanatory views which show the modification of the optical fiber. It is a figure which shows the modification of the dental handpiece which concerns on embodiment of this invention, (a) is a side view, (b) is VIII-VIII sectional view of (a). FIG. 8 is an enlarged view of part A in FIG.

[First Embodiment]
First, the dental handpiece 1 according to the first embodiment of the present invention and the method for replacing the optical fiber for the dental handpiece will be described with reference to FIGS. 1 to 3.
In the first embodiment, the dental handpiece 1 shown in FIG. 2 will be described with the head portion 2 side as the front direction and the connection portion 3 side as the rear direction. The same applies to each part.

≪Dental handpiece≫
As shown in FIG. 2 or 3, the dental handpiece 1 is, for example, a medical device used for dental treatment. The dental handpiece 1 includes a head portion 2, a connecting portion 3, a guide member 4, an optical fiber 5, an elastic resin member 6, a tool 7, and a light emitting body 8. The dental handpiece 1 is used by connecting the connecting portion 3 to the dental unit 410 (see FIG. 4) and attaching the desired tool 7 to the head portion 2.

The function, structure, type, and the like of the dental handpiece 1 are not particularly limited as long as the dental handpiece 1 includes a head portion 2, a connecting portion 3, a guide member 4, and an optical fiber 5. The dental handpiece 1 may be any one of an air turbine handpiece, a micromotor handpiece, a contra-angle handpiece, an ultrasonic scaler, a tooth surface cleaner, a multi-way syringe, and a laser device handpiece.

That is, there are various types of dental handpieces 1, and even if a motor (not shown) driven by a battery or an external power source is built in, the dental handpiece 1 is not built in. It may be a thing. Further, the dental handpiece 1 may be a dental scaler in which a dental tip is provided on the head portion 2 and ultrasonically vibrated by electric power. Further, the dental handpiece 1 may be driven by other than electric power. Hereinafter, a dental handpiece 1 in which a rotor (not shown) is built in the head portion 2 will be described as an example.

As shown in FIG. 2, in the grip portion 1a, the outer peripheral portion of the guide member 4 is embedded in the elastic resin member 6 in close contact with the inside. Therefore, the guide member 4 serves as a bone member in the grip portion 1a.
The grip portion 1a may be formed of an elastic resin member 6 or a metal cylinder. Hereinafter, when the grip portion 1a is formed of an elastic resin member 6. To explain.

<Head part>
The head portion 2 is a portion to which the tool 7 for treating the affected portion is detachably attached. The head portion 2 is a substantially cylindrical member provided at the tip end portion of the grip portion 1a of the dental handpiece 1. The head portion 2 and the connecting portion 3 are made of a metal such as stainless steel. The head portion 2 is provided with an opening hole (not shown) formed on the lower side for attaching / detaching a tool, a neck portion 2a to which the grip portion 1a is connected, a rotor for rotationally driving the tool 7 (not shown), and the like. ing.

Resin is molded on the outer peripheral portion on the rear end side of the neck portion 2a so as to be covered with the elastic resin member 6. In the dental handpiece 1 of the type having a built-in rotor (not shown), the rotor (not shown) in the head portion 2 is rotated at high speed by compressed air, and the tool 7 mounted on the rotor shaft is rotated at high speed. , It is designed to cut teeth.

<Tools>
The tool 7 is a well-known cutting tool having a handle portion installed in an opening hole (not shown) of the head portion 2 and a tapered needle portion provided in a state of protruding from the opening hole (not shown). is there.

<Connection>
The connecting portion 3 is a portion that connects the rear end portion of the guide member 4 and the tip portion of a tube (not shown) connected to a dental unit 410 (see FIG. 4) provided with a supply means for supplying energy. is there. The shape, structure, etc. of the connecting portion 3 are not particularly limited. As shown in FIG. 2, the connecting portion 3 is made of a substantially tubular metal member that is integrally attached to the rear end portion of the elastic resin member 6. The connection portion 3 includes a communication hole (not shown) formed through the axial direction, a recess 3a formed in an annular shape near the front end portion, and a step portion 3b adjacent to the rear end surface 6d of the main body covering portion. And guide member insertion holes 3c and 3d into which the guide member 4 is inserted.

<Guide member>
As shown in FIG. 2, the guide member 4 is a tubular member for communicating the head portion 2 and the connecting portion 3. The guide member 4 is composed of a plurality of metal pipes arranged in the elastic resin member 6 from the head portion 2 to the connecting portion 3. As shown in FIG. 1, the guide member 4 is composed of an insertion means 41 capable of inserting a flexible optical fiber 5 and supply pipes 42 and 43 for supplying energy to the head portion 2. The guide member 4 is composed of, for example, five members, but the number thereof is not particularly limited.

The front end portion of the guide member 4 is inserted into the head portion 2 from the rear end surface 2b of the neck portion 2a. The front end portion of the guide member 4 is joined to the rear end surface 2b of the head portion 2 by brazing or the like. The rear end portion of the guide member 4 is arranged so as to protrude from the rear end portion of the connecting portion 3 in a state of penetrating the connecting portion 3. The rear end portion of the guide member 4 is joined to the front end surface 3e of the connecting portion 3 by brazing or the like.

<Insert means>
As shown in FIG. 2, the insertion means 41 is a tubular member for installing the optical fiber 5 that serves as a guide for arranging the optical fiber 5 in the grip portion 1a. The insertion means 41 is composed of a metal pipe arranged from the connecting portion 3 to the head portion 2. The insertion means 41 is arranged at a substantially intermediate position between the left and right supply pipes 43 arranged below the left and right supply pipes 42 in a vertical cross-sectional view (see FIG. 1). The insertion means 41 includes an entrance / exit 41a formed at the rear end portion, an entrance / exit 41b formed at the front end portion, a curved portion 41c formed near the entrance / exit 41b, and a gentle opening / exit 41 formed at the central portion in the front-rear direction. It has a curved portion 41d and.

The insertion means 41 is arranged so that the optical fiber 5 can penetrate from the connection portion 3 to the vicinity of the tool 7 or from the vicinity of the tool 7 to the connection portion 3 from both sides. The insertion means 41 has a curved portion 41c formed by bending in a substantially O shape at the front end portion, and is arranged so that the front end surface is flushly exposed from the lower surface 2c of the neck portion 2a. As shown in FIGS. 3A and 3B, the insertion means 41 inserts / removes the gripping allowances 5a and 5b of the front end and the rear end of the optical fiber 5 from the vicinity side of the tool 7 or the connection part 3 side. It has doorways 41a, 41b that enable it.

The entrances 41a and 41b are open ends of the insertion means 41 and serve as exchange ports when the optical fiber 5 is exchanged. The cut end of the entrance / exit 41a is formed so as to be orthogonal to the tubular insertion means 41 extending in the front-rear direction. The cut end of the entrance / exit 41b is formed along the lower surface 2c of the neck portion 2a formed in an obliquely upward direction with respect to the front-rear direction.

In the vicinity of the curved portion 41c of the insertion means 41, the rear side from the curved portion 41c extends in the rear direction along the neck portion 2a, and the front side from the curved portion 41c is formed obliquely toward the direction in which the tip of the tool 7 is located. ing.

<Supply piping>
The supply pipes 42 and 43 are made of metal pipes that form a flow path for supplying and exhausting compressed air for a rotor or for supplying water or air, as in the case of conventional pipes.

As shown in FIG. 2, the supply pipe 42 includes, for example, a pipe for supplying compressed air for rotating a rotor (not shown) and a pipe for exhausting compressed air (see FIG. 1). The two supply pipes 42 are arranged on the left and right sides of the substantially central portion of the connecting portion 3 and the elastic resin member 6 in a vertical cross-sectional view.

Further, the supply pipe 43 shown in FIG. 1 is a pipe for supplying water for supplying water and a pipe for supplying air for chips for supplying air together with the water to generate mist (fog). It consists of two. That is, the two supply pipes 43 are used for the purpose of cooling the tool 7 (see FIG. 2) to improve work efficiency and making it easier to visually recognize the affected part contaminated with blood or the like during treatment. It is used to blow away such things. The supply pipe 43 is formed to have a smaller diameter than the supply pipe 42.

<Optical fiber>
The optical fiber 5 shown in FIG. 2 is formed of a thermosetting or thermoplastic flexible material (elastic body). The optical fiber 5 is made of, for example, a resin optical fiber (optical conductor) such as a transparent polymethyl methacrylate-based polymer or a fluoropolymer resin. In addition, the optical fiber 5 includes fluoride glass (ZBLAN type), zirconium (ZrF ₄ ), barium (BaF ₂ ), lanthanum (LaF ₃ ), sodium (NaF), aluminum (ALF ₃ ), germanium oxide (GeO ₂ ). , Calcogenite glass, sulfur (S), selenium (Se), tellurium (Te) compound glass may be used.
Further, even if it is a multi-component glass optical fiber in which oxides such as Na ₂ O, B ₂ O ₃ , Al ₂ O ₃ , and GeO ₂ are mixed in addition to quartz to lower the glass softening point and improve workability. Good.

Further, the optical fiber 5 may be a hybrid fiber of a glass fiber and a resin fiber as long as it has elasticity and can be bent. Therefore, the optical fiber 5 has elasticity, resistance to bending, and resistance to cracking as compared with conventional glass fibers such as quartz glass, and is deformed along the shape of the insertion means 41. The optical fiber 5 has a simple straight shape before insertion and is inexpensively configured. As a result, the optical fiber 5 can be detachably handled by the dental handpiece 1 even by the user 500 (see FIG. 4). Further, the resin optical fiber 5 has advantages that the specific gravity is smaller and lighter than the glass fiber, the light transmission loss is larger than that of the glass fiber, it is suitable for short-distance transmission of light, and the cost is low. is there.

As shown in FIG. 2, the optical fiber 5 is formed in substantially the same shape as in the insertion means 41 so that it can be inserted into and removed from the insertion means 41. The optical fiber 5 is formed longer than the insertion means 41 so that when the optical fiber 5 is inserted into the insertion means 41, either the front end portion or the rear end portion of the picking allowances 5a or 5b protrudes from the insertion means 41. It consists of a transparent body with a substantially cylindrical shape. The optical fiber 5 has a picking allowances 5a and 5b, a light receiving surface 5c, a light emitting surface 5d, a curved portion 5e, and a curved portion 5f.

As shown in FIGS. 3A and 3B, the picking allowances 5a and 5b are front and rear ends protruding from the insertion means 41, and when the optical fiber 5 is replaced, the operator uses a finger. This is the place to pick and pull. The picking allowances 5a and 5b may be located at either the front end portion or the rear end portion of the optical fiber 5, or may be located at both. As shown in FIG. 3B, the pinching allowance 5b protruding from the insertion means 41 is fixed to the dental handpiece 1 by, for example, a fixture 11 (fixing means) holding the pinching allowance 5b.

The light receiving surface 5c is a surface that takes in the light emitted from the light emitting body 8. The light receiving surface 5c is composed of the rear end surface of the optical fiber 5.
The light emitting surface 5d is a surface on which the light received from the light receiving surface 5c is emitted. The light emitting surface 5d is composed of a front end surface inclined with respect to the center line of the optical fiber 5. The light emitting surface 5d may be a surface formed so as to be orthogonal to the center line of the optical fiber 5 as shown in FIG. 3A, and the neck portion may be formed as shown in FIG. 3B. It may be a surface formed along the lower surface 2c of 2a.
As shown in FIG. 2, the curved portion 5e and the curved portion 5f are formed by bending in accordance with the curved portion 41c and the curved portion 41d of the insertion means 41.

The optical fiber 5 formed in such a shape has an entrance / exit 41a which is a fiber exchange port on the connection portion 3 side of the dental handpiece 1 or an entrance / exit 41b which is a fiber exchange port on the head portion 2 side (illumination portion side). It is inserted from. When the optical fiber 5 is extracted from the insertion means 41, it is extracted from the rear entrance / exit 41a side or the front entrance / exit 41b side.

<Luminator>
As shown in FIGS. 3 (a) and 3 (b), the light emitting body 8 includes an LED or a halogen bulb for illumination, or a laser oscillator for laser treatment. Hereinafter, the case of an LED for lighting will be described as an example of the light emitter 8. The light emitting body 8 is arranged in the vicinity of the light receiving surface 5c of the optical fiber 5 or in the dental unit 410 (see FIG. 4). When the light emitting body 8 is arranged in the dental unit 410 (see FIG. 4), the light emitted from the light emitting body 8 is guided to the light receiving surface 5c by an optical fiber (not shown).

<Elastic resin member>
The elastic resin member 6 is a skin member that covers the guide member 4. The elastic resin member 6 is attached so as to cover the guide member 4 from the rear end portion of the head portion 2 to the tip end portion of the connecting portion 3. The elastic resin member 6 includes a main body covering portion 6a, a sealing portion 6b, a communicating portion (not shown), a locking portion 6c, a main body covering portion rear end surface 6d, and a head rear end covering portion 6e. doing.

The elastic resin member 6 is made of, for example, a thermosetting resin that is lighter than metal and has flexibility and elasticity. Specifically, the elastic resin member 6 is made of a colored synthetic resin obtained by coloring a colorless silicone resin into a desired color. The elastic resin member 6 is melted and molded into the grip portion 1a by, for example, arranging a tape-shaped (sheet-shaped) wound resin member wound around the guide member 4 in a mold heated to a high temperature. It is molded.

As shown in FIG. 2, the grip portion 1a formed by the main body covering portion 6a is a portion for the operator to grasp and operate by hand. The grip portion 1a is formed in a substantially circular shape in a cross-sectional view by the main body covering portion 6a incorporating the guide member 4 (see FIG. 1).
The main body covering portion 6a is a portion mounted so as to cover the guide member 4 from the rear end portion of the head portion 2 to the tip end portion of the connecting portion 3. The main body covering portion 6a is formed by being bent in an arc shape (substantially opposite shape) when viewed from the side surface.

The seal portion 6b shown in FIG. 2 includes the connection portion 3 and the dental unit 410 (see FIG. 4) connected to the connection portion 3 when the connection portion 3 is connected to the dental unit 410 (see FIG. 4). It is a part that plays the role of packing that is interposed between. The seal portion 6b is attached so as to cover the entire rear end surface of the connection portion 3.

The communication portion (not shown) is for filling the communication hole (not shown) formed in the connection portion 3 with a resin material so that the main body covering portion 6a and the seal portion 6b are communicated and connected. It is the part of.
The rear end surface 6d of the main body covering portion is arranged so as to form a concave groove with the stepped portion 3b, so that burrs of the resin material can be easily removed.

The locking portion 6c is a resin material formed by filling the annular recess 3a. The locking portion 6c and the communicating portion (not shown) have a function of preventing the elastic resin member 6 from peeling from the connecting portion 3.

<< Operation of the first embodiment >>
Next, the operation of the dental handpiece 1 according to the first embodiment of the present invention and the method of replacing the optical fiber for the dental handpiece will be described with reference to FIGS. 1 to 3.

For example, when the optical fiber 5 is provided in the insertion means 41, as shown in FIG. 2, the light emitting surface 5d of the optical fiber 5 is pushed in from the entrance / exit 41a and arranged in the pipe-shaped insertion means 41. Then, as shown in FIG. 3B, the optical fiber 5 is pushed into the insertion means 41 so that the light emitting surface 5d at the tip thereof coincides with the lower surface 2c of the neck portion 2a. Since the optical fiber 5 is made of a flexible resin material, it will not be damaged even if the insertion means 41 is bent.

In this case, the length of the optical fiber 5 in the front-rear direction is formed to be longer than the length of the insertion means 41 in the front-rear direction by the amount of the picking allowance 5b. Therefore, the picking allowance 5b is arranged so as to protrude from the entrance / exit 41a at the rear end of the insertion means 41. For example, the optical fiber 5 can be fixed by fitting the fixing tool 11 or the like to the knob 5b and attaching the connector (not shown) to the connecting portion 3.

Further, as shown in FIG. 3A, the optical fiber 5 may be arranged so that the pinching allowance 5a on the front end side protrudes from the lower surface 2c of the neck portion 2a.

Then, when the light emitting body 8 is turned on, the light radiated from the light emitting body 8 enters the optical fiber 5 from the light receiving surface 5c and is radiated from the light emitting surface 5d toward the tip portion of the tool 7, and the tool 7 and Illuminate the surrounding area.

When the optical fiber 5 used is deteriorated and replaced with a new optical fiber 5, for example, the light receiving surface 5c of the optical fiber 5 shown in FIG. 3B is pressed by the front end portion of the new optical fiber 5 to tip the tip. The side picking allowance 5a is pushed into the insertion means 41 from the doorway 41a. Further, by pushing the new optical fiber 5 into the insertion means 41, the deteriorated optical fiber 5 in the insertion means 41 is pushed out and replaced with the new optical fiber 5.

Further, as shown in FIGS. 3A and 3B, the deteriorated optical fiber 5 inserted into the insertion means 41 is pulled out by picking the picking allowances 5a and 5b protruding from the insertion means 41. You may.

As described above, in the present invention, as shown in FIG. 2, the head portion 2 which is disposed at the tip portion and the tool 7 for treating the affected portion is detachably attached and the connecting portion arranged at the rear end portion. 3 and a plurality of guide members 4 for communicating the head portion 2 and the connecting portion 3, and connecting the connecting portion 3 to a dental unit 410 (see FIG. 4) provided with a supply means for supplying energy. The guide member 4 includes a supply pipe 42 that supplies energy to the head portion 2, and at least one of the guide members 4 can be located near the tool 7 from the connection portion 3. It has an insertion means 41 capable of inserting a flexible optical fiber 5.
As a result, since the optical fiber 5 is flexible, it is more resistant to bending and does not break as compared with the glass optical fiber. Therefore, even a user 500 (see FIG. 4) such as an operator can easily replace the optical fiber 5.

Further, the insertion means 41 enables the optical fiber 5 to penetrate in at least one direction from the connecting portion 3 toward the vicinity of the tool 7 and from the vicinity of the tool 7 toward the connecting portion 3.
As a result, the optical fiber 5 can be replaced by pushing it from either the front end side or the rear end side of the insertion means 41.

Further, the insertion means 41 has entrances 41a and 41b that allow the end portion of the optical fiber 5 to project toward the vicinity side of the tool 7 or the connection portion 3 side when the optical fiber 5 is installed. ..
As a result, the optical fiber 5 can be inserted from the doorway 41a on the connecting portion 3 side of the insertion means 41 or the doorway 41b on the tool 7 side.

The optical fiber 5 shown in FIG. 2 is a resin optical fiber.
As a result, the optical fiber 5 is made of a thermosetting or thermoplastic resin and has flexibility, so that it can be bent.

Further, the guide member 4 is a metal pipe, and has an elastic resin member 6 mounted so as to cover the metal pipe from the rear end portion of the head portion 2 to the tip end portion of the connecting portion 3.
As a result, the guide member 4 is made of a metal pipe and thus functions as a skeleton member of the grip portion 1a of the elastic resin member 6. Further, since the grip portion 1a is formed of the elastic resin member 6, the feel can be improved.

The dental handpiece 1 is any one of an air turbine handpiece, a micromotor handpiece, a contra-angle handpiece, an ultrasonic scaler, a tooth surface cleaner, a multi-way syringe, and a laser device handpiece.
As a result, the dental handpiece 1 having the optical fiber 5 can be used for lighting various handpieces, or can also be used as an optical conductor for transmitting the laser beam of the laser device.

Further, in the present invention, the head portion 2 disposed at the tip portion and the tool 7 for treating the affected portion is detachably attached, the connecting portion 3 disposed at the rear end portion, and the head portion 2 and the connecting portion. A plurality of guide members 4 communicating with 3 and an insertion means 41 arranged from the connection portion 3 to the vicinity of the tool 7 and an insertion means 41 so as to be inserted into the insertion means 41 and radiating from a light source (light emitter 8). A method for exchanging an optical fiber of a dental handpiece 1 including an optical fiber 5 that receives the light from one end and emits the light from the other end. The optical fiber 5 is the optical fiber 5 formed of a flexible material. Is inserted and arranged from one end or the other end of the insertion means 41, and the picking allowances 5a and 5b formed at the end of the optical fiber 5 are pulled out or pushed out to be removed from the insertion means 41 and replaced.

As a result, the optical fiber 5 can be easily removed from the insertion means 41 and replaced by pulling out or pushing out the picking allowances 5a and 5b from one end or the other end of the insertion means 41.

[Second Embodiment]
Next, the dental handpiece 1 and the dental handpiece management system 100 according to the second embodiment of the present invention will be described with reference to FIGS. 4 and 5A to 5C.
The configurations already described are designated by the same reference numerals and the description thereof will be omitted.

≪Dental handpiece≫
As shown in FIGS. 4, 5A or 5B, the dental handpiece 1A of the second embodiment is an illuminance detection that detects light with respect to the dental handpiece 1 of the first embodiment (see FIG. 2). It differs in that it has means 9, a detection aid 10, and a metal grip 6A. When the optical fiber 5 of the dental handpiece 1A deteriorates due to heat sterilization by an autoclave and the light transmittance decreases, the illuminance radiated from the optical fiber 5 decreases.

<Illuminance detection means>
The illuminance detecting means 9 shown in FIG. 5A detects the illuminance or the brightness of the intensity of the light emitted from the light emitting surface 5d of the optical fiber 5, and is composed of, for example, a light receiving element. The illuminance detecting means 9 can detect the deterioration status of the optical fiber 5 by detecting the illuminance that the light emitted from the inside of the optical fiber 5 illuminates the surface of the object or the brightness indicating the degree of brightness of the surface illuminated by the light source. It is a sensor for making. The illuminance detecting means 9 is installed in the dental handpiece 1A between the light emitting surface 5d of the optical fiber 5 and the tool 7 with the surface exposed, and detects the light emitted from the light emitting surface 5d. It is provided in a position where it is easy to do.

<Detection aid>
When detecting the illuminance or brightness of the object, the value may fluctuate depending on the surrounding environment, the detection distance, and the detection angle. The detection assisting tool 10 shown in FIG. 5B is a detection assisting tool capable of always measuring under the same conditions at the time of illuminance measurement so as not to be affected by the surrounding environment or change in the measurement conditions. The detection assisting tool 10 covers all the light emitting surface 5d and the head portion 2 provided with the illuminance detecting means 9 to block light from the outside, and is inside the light emitting surface 5d, the illuminance detecting means 9, and the detecting assisting tool 10. It is configured to keep the distance and angle to the reflector 12 provided on the bottom constant. The detection assisting tool 10 has a mounting portion 10a to be attached to the front end portion of the grip portion 1a, and is composed of a substantially box-shaped opaque member formed so as to cover the entire head portion 2.

<Metal grip>
The metal grip 6A is a grip portion 1a made of a metal such as stainless steel. That is, the grip portion 1a may be made of the elastic resin member 6 as in the first embodiment, or may be made of the metal grip 6A.

≪Dental handpiece management system≫
As shown in FIG. 4, the dental handpiece management system 100 is a system for managing the dental handpiece 1 having an optical fiber 5 (see FIG. 5). The dental handpiece management system 100 is a user including a dental clinic device 400 including a dental unit 410 and a dental handpiece 1, a control device 200, a storage unit 300, a cloud 800, and an information processing device 510. It includes 500, a factory 600 equipped with an information processing device 610, a factory 600 equipped with an information processing device 510, and a communication network NW.

The dental handpiece management system 100 skips the information of the optical fiber 5 replaceably provided in the dental handpiece 1, transmits and receives the information by the communication unit 260 provided in the control device 200, and replaces the optical fiber 5 depending on the usage status and the like. It is a device that calculates the time, displays the replacement time of the optical fiber 5 on the display unit 240 of the control device 200, and informs the operator or the like.

The control device 200 sets the input unit 210 for inputting and rewriting data, the calculation unit 220 for calculating the replacement time of the optical fiber 5, the output unit 230 for outputting the calculated data, and the replacement time of the optical fiber 5. A display unit 240 for displaying, a notification unit 250 for notifying the replacement time of the optical fiber 5, and a communication unit 260 for transmitting and receiving data such as the replacement time of the optical fiber 5 are provided. The control device 200 is, for example, a central processing unit that is arranged in a dental clinic, a management center, or the like to manage the dental handpiece 1 and the optical fiber 5.

The storage unit 300 contains the clinic information 310, the durability of the optical fiber 5 and the like 320, the illuminance reference value 330 of the optical fiber 5, the number of sterilizations of the dental handpiece 1 340, and the dental clinic in which the optical fiber 5 is stored. The temperature information 350 and the illuminance data 360 of the illuminance of the optical fiber 5 are stored. The data of the storage unit 300 is transmitted from the communication unit 260 of the control device 200 via the communication network NW to the dental treatment device 400 in the clinic in the dental clinic, the information processing device 510 of the user 500, and the factory 600. It is transmitted to the information processing device 610 and the information processing device 710 of the manufacturer 700. As a result, the user 500 such as an operator can grasp the replacement time of the dental handpiece 1.

The data of the storage unit 300 is stored in the server of the cloud 800 via the electric information communication network NW. The stored cloud 800 data can be displayed from the display unit 410 (not shown) of the dental unit 410 of the dental clinic device 400, or from the information processing devices 510, 610, 710 of the user 500, the factory 600, and the manufacturer 700. It can be displayed on 611 and 711 to indicate when to replace the optical fiber 5. From these exchange information, when the optical fiber 5 needs to be exchanged, only the optical fiber 5 can be exchanged, leaving the members other than the optical fiber 5 of the dental handpiece 1A.

The dental clinic apparatus 400 includes a dental unit 410 arranged in the dental clinic, a dental handpiece 1 having an illuminance detecting means 9, and the like. The information of the dental handpiece 1 and the optical fiber 5 is transmitted to the storage unit 300 and the control device 200 via the communication network NW.

User 500 is an operator at a dental clinic or the like. The factory 600 is a site where the dental handpiece 1A and the optical fiber 5 are manufactured. Manufacturer 700 is a manufacturer of dental handpiece 1A and optical fiber 5.

The user 500, the factory 600, and the maker 700 transmit the deterioration information of the optical fiber 5 of the dental handpiece 1A used by the operator calculated by the control device 200 and the information of the storage unit 300 via the communication network NW. It can be known from the display units 511, 611, 711 of the information processing devices 510, 610, 710 such as terminals.

<< Operation of the second embodiment >>
Next, the dental handpiece 1A and the dental handpiece management system 100 according to the second embodiment of the present invention will be described with reference to FIGS. 4, 5A, 5B and 5C.

As shown in FIGS. 5A and 5B, an illuminance detecting means 9 composed of a light receiving element is provided in the vicinity of the tool 7 of the dental handpiece 1A. The illuminance detecting means 9 detects the illuminance of the light emitted from the optical fiber 5 under certain conditions. The constant condition means that the hue, saturation or brightness of the reflector, the ambient illuminance, and the distance and angle to the reflector are constant.

The dental handpiece 1A is sterilized after use by the operator. The optical fiber 5 of the dental handpiece 1A is deteriorated by high temperature sterilization or the like, and the light transmittance is lowered. The deterioration of the optical fiber 5 can be grasped by detecting the illuminance of the light radiated from the optical fiber 5 with the illuminance detecting means 9.

Next, a case will be described in which deterioration of the optical fiber 5 is detected and notified by the illuminance of the light emitted from the optical fiber 5 with reference to FIG. 5C mainly with reference to FIGS. 5A and 5B.
In that case, first, as shown in FIG. 5B, the detection assisting tool 10 is attached to the head portion 2 at the tip of the dental handpiece 1A (step S1). Then, the light source is turned on (step S2). Next, the illuminance detecting means 9 (light emitting element) provided in the head portion 2 of the dental handpiece 1A detects the illuminance of the light radiated from the optical fiber 5 and reflected by the reflector 12 from the converted electric signal. (Step S3).

The electric signal of the illuminance of the light emitted from the detected optical fiber 5 is transmitted to the dental unit 410 to which the dental handpiece 1A is connected (step S4), and the dental is connected to the electric information communication network NW. It is compared with the illuminance reference value 330 stored in the storage unit 300 of the unit 410. First, it is compared whether the electric signal of the illuminance of light satisfies the reference value of hue, saturation or lightness (step S5).

If the electric signal of the illuminance of the light does not satisfy the reference value of hue, saturation or lightness, the process proceeds to step S6 (No in step S5). Then, the light source or the lighting member is replaced (step S6). Alternatively, the confirmation of the disconnection of the wiring is notified to the dental unit 410 or the display unit of the terminal (step S6), and the process proceeds to step S7.

In step S5, if the electric signal of the illuminance of light does not satisfy the reference value of hue, saturation or lightness, the process proceeds to step S7 (Yes in step S5). In step S7, it is compared whether the electric signal of the illuminance of light satisfies the illuminance reference value 330 (step S7). For example, it is compared whether the illuminance of the light emitted from the detected optical fiber 5 is reduced to 70% or less as compared with the factory default (step S7). When the electric signal of the illuminance of light satisfies the illuminance reference value 330 (Yes in step S7), it is determined that the optical fiber 5 has not deteriorated, and the process ends. If the electric signal of the illuminance of light does not satisfy the illuminance reference value 330 (No in step S7), the process proceeds to step S8.

In step S8, the output of the light source is increased, and whether or not the electric signal of the illuminance of light satisfies the illuminance reference value 330 is compared again (step S8). When the electric signal of the illuminance of light satisfies the illuminance reference value 330 (Yes in step S8), the optical fiber 5 is deteriorated to 70% or less at the time of shipment, but is not deteriorated from the predetermined reference value. And finish. When it is determined that the electric signal of the illuminance of light does not satisfy the illuminance reference value 330 and the optical fiber 5 is deteriorated (No in step S8), the process proceeds to step S9.

In step S9, the notification unit 250 of the control device 200 notifies the dental unit 410 and the display unit of the terminal that the light source or the lighting member is to be replaced (step S6), and the process ends.
In this way, the dental handpiece management system 100 can convert the light radiated from the optical fiber 5 into an electric signal and monitor the deterioration of the optical fiber 5 from the electric signal of the illuminance of the converted light. The information on the deteriorated optical fiber 5 is notified to the display unit of the dental unit 410 and the designated information processing devices 510, 610, 710 such as the manufacturer 700, the factory 600, and the user 500 connected to the communication network NW.

As shown in FIG. 4, the information processing devices 510, 610, and 710 (terminals) of the dental unit 410, the user 500, the factory 600, and the manufacturer 700 are connected to the communication network NW so that information can be exchanged. Therefore, the dental handpiece management system 100 can manage information on the illuminance (transmittance) of the optical fiber 5, the durability of the optical fiber 5 320, the usage status of the dental handpiece 1A, and the like.

For example, when it is detected that the illuminance (transmittance) of the optical fiber 5 has decreased or the durability of the optical fiber 5 has reached 320, an order is automatically placed from the manufacturer 700 to replace the new optical fiber 5 with a new one. Can be done.

As described above, the optical fiber 5 delivered from the manufacturer 700 to the user 500 is easy to replace, so that the user 500 can easily replace the optical fiber 5. When the optical fiber 5 of the dental handpiece 1A is replaced with a new one, the illuminance of the light emitted from the optical fiber 5 of the dental handpiece 1A of the user 500 becomes high. When the illuminance detecting means 9 detects that the decrease in illuminance has been improved, the management data of the optical fiber 5 stored on the communication network NW is updated, and the management shifts to the management of the new optical fiber 5 having a durability of 320.

Therefore, the maker 700 who has obtained this management data can easily make a production plan for the new optical fiber 5 at the factory 600 or the like of the maker 700. In this way, since the status of the optical fiber 5 being used can be grasped based on the information detected by the illuminance detecting means 9, it can be useful for research and development and improvement of the optical fiber 5.

As described above, the illuminance detecting means 9 (light receiving element) for detecting the intensity of the light guided from the optical fiber 5 is provided in the vicinity of the head portion 2 to enable the detection of the illuminance.
As a result, the illuminance detecting means 9 can confirm the deterioration state of the optical fiber 5 by detecting the illuminance of the light radiated from the optical fiber 5 and monitoring the decrease in the illuminance.

Further, as shown in FIG. 2 or 4, the present invention relates to a head portion 2 disposed at the tip portion and to which a tool 7 for treating the affected portion is detachably attached, and a connection disposed at the rear end portion. A plurality of guide members 4 that communicate the portion 3, the head portion 2 and the connecting portion 3, an insertion means 41 arranged in the vicinity of the tool 7 from the connection portion 3, and a flexible insertion means inserted into the insertion means 41. An information sharing destination including a dental handpiece 1 provided with an optical fiber 5, a dental unit 410 provided with a supply means for supplying energy to a connection portion 3, and a processing unit capable of communicating via a communication network NW. Communication unit 260 that sends and receives information to and from (user 500, factory 600, manufacturer 700) and optical fiber 5 illuminance data 360, or optical fiber 5 management data (clinical information 310, durability 320, illuminance reference value) Compare the illuminance and illuminance data 360 detected by the illuminance detecting means 9 under a predetermined constant condition with the storage unit 300 that stores 330, the number of sterilizations 340, the temperature information 350, the illuminance data 360, etc.). When the illuminance of the flexible optical fiber 5 is low, or when the ages of the flexible optical fibers 5 recorded in the management data are compared and the durability 320 has passed, the dental unit 410 , The notification unit 250 (notification means) for notifying the display unit 511 of the terminal of the information sharing destination maker 700 or the user 500 of the deterioration and replacement of the flexible optical fiber 5, and the terminal of the information sharing destination maker 700. It is newly detected that the user 500 has replaced the delivered flexible optical fiber 5 with the ordering means for automatically or arbitrarily ordering the replacement flexible optical fiber 5 from the (information processing apparatus 710). It is provided with an optical fiber detecting means 9 for detecting that the optical fiber has improved by comparing with the optical fiber and the optical fiber data 360, and an updating means for updating the management data.

As a result, the dental handpiece management system 100 enables the user 500 to replace the optical fiber 5 in order to improve the problem of a decrease in illuminance due to deterioration of the member of the optical fiber 5 in repeated high-pressure sterilization. The user 500, the factory 600, and the manufacturer 700 of the information sharing destination indicate the illuminance and the illuminance detected by the illuminance detecting means 9 of the dental handpiece 1A that the optical fiber 5 should be replaced and that the replacement work has been performed. With the data 360, it can be known via the communication network NW.
Therefore, the manufacturer 700 can grasp the usage status of the dental handpiece 1A of the user 500, the deterioration status of the optical fiber 5, the replacement time, and the like, and can manufacture and manage the parts accordingly. As a result, the manufacturer 700 can efficiently manufacture a desired number of parts such as the optical fiber 5 in a timely manner, so that the repair cost of the parts can be reduced and the production control of the parts can be facilitated.
As a result, when the optical fiber 5 deteriorates and the light transmittance decreases, the user 500 is automatically notified of the replacement of the optical fiber 5, and the replacement with a new optical fiber 5 is promoted in a timely manner. In the optical fiber 5 exchanged in this way, the light transmittance is always maintained at a high level, so that a clear state of the work site can be ensured, and thus the medical treatment efficiency can be improved.
Further, the dental handpiece management system 100 can monitor the deterioration state of the new optical fiber 5 in conjunction with the replacement.

Further, at least one of the guide members 4 includes adding the guide members 4 separately from the existing guide members 4 later.
As a result, the dental handpiece 1A can monitor the deterioration of the optical fiber 5 even if the guide member 4 is added and the specifications are changed.

[Modification example of guide member]
The present invention is not limited to the first and second embodiments, and various modifications and modifications can be made within the scope of the technical idea thereof, and the present invention is the modified and modified invention. Of course, it also extends to. The configurations already described are designated by the same reference numerals and the description thereof will be omitted.
6A (a) to (e), 6B (f) to (i), 6C (j) to (l), and 6D (m) and 6D (n) are modifications of the guide members 4A to 4N. It is explanatory drawing which shows an example.

FIG. 6A (a) is a side view and a front view showing a modified example of the guide member 4A.
As shown in FIG. 6A (a), the guide member 4A into which the optical fiber 5 (see FIG. 2) is inserted forms a narrowed portion 4Aa (fixing means) at both ends thereof, and the narrowed portion 4Aa forms the inside of the guide member 4A. The optical fiber 5 (not shown) inserted in may be fixed.
As a result, the guide member 4A can hold the optical fiber 5 (not shown) by the narrowed portions 4Aa at both ends and suppress the optical fiber 5 from moving in the axial direction.

FIG. 6A (b) is a side view and a front view showing another modified example of the guide member 4B.
As shown in FIG. 6A (b), in the guide member 4B, a narrowed portion 4Ba (fixing means) is formed at one end, and the optical fiber 5 (in the guide member 4B) is formed by the narrowed portion 4Ba formed in one place. (Not shown) may be fixed.
Even in this way, the guide member 4B can hold the optical fiber 5 (not shown) by the narrowed portion 4Ba and suppress the optical fiber 5 from moving in the axial direction.

FIG. 6A (c) is a front view and a front view VAC-VAC cross-sectional view showing another modified example of the guide member 4C.
As shown in FIG. 6A (c), the guide member 4C forms a groove-shaped convex portion 4Ca (fixing means) on the lower surface portion or the like at a position closer to one end side, and is guided by the convex portion 4Ca. The optical fiber 5 (not shown) in the member 4C may be fixed.

FIG. 6A (d) is a front view and a front view showing a VAD-VAD sectional view showing another modification of the guide member 4D.
As shown in FIG. 6A (d), in the guide member 4D, groove-shaped convex portions 4Da, 4Da (fixing means) are formed at a plurality of locations such as the lower surface portion and the upper surface portion at positions closer to the end side. The optical fiber 5 (not shown) in the guide member 4D may be held by the convex portion 4Da.

FIG. 6A (e) is a front view and a front view showing a VAE-VAE sectional view showing another modification of the guide member 4E.
As shown in FIG. 6A (e), the guide member 4E forms a diameter-expanded portion 4Ea protruding outward in the radial direction on the outer peripheral portions of both ends, and a small-diameter portion 4Eb (fixing means) between the diameter-expanded portions 4Ea at both ends. ) Is formed. The optical fiber 5 (not shown) has a dimension that approximates the inner diameter of the small diameter portion 4Eb of the guide member 4E to the outer diameter of the optical fiber 5.
As a result, the optical fiber 5 can be fitted inside the small diameter portion 4Eb of the guide member 4E so as to be in close contact with the guide member 4E, so that the resin optical fiber 5 can be prevented from easily falling off from the guide member 4E by friction.

FIG. 6B (f) is a side view and a front view showing another modified example of the guide member 4F.
As shown in FIG. 6B (f), the guide member 4F may be a straight cylindrical pipe having no constricted portion, convex portion, concave portion, or the like.
In this case, the guide member 4F has one or more convex portions on the optical fiber 5 side, or a part of the outer peripheral surface of the optical fiber 5 is enlarged even if there is no fixing means such as a constricted portion on the piping side. If configured, the optical fiber 5 can be fixed to the guide member 4F.

FIG. 6B (g) is a side view and a front view showing another modification of the guide member 4G.
As shown in FIG. 6B (g), the guide member 4G may form a tapered portion 4Ga on the entire outer peripheral surface.
In this way, the guide member 4G forms the tapered portion 4Ga, and the tapered portion is also formed on the outer peripheral surface of the optical fiber 5 inserted into the guide member 4G so that the tapered surfaces of both are brought into close contact with each other. Once fitted, it can be fixed by friction.

FIG. 6B (h) is a side view and a front view showing another modified example of the guide member 4H.
As shown in FIG. 6B (h), the tapered portion 4Ha formed on the guide member 4H may be a part of the outer peripheral surface. For example, the tapered portion 4Ha may be formed on one half of the outer peripheral surface of the guide member 4H in the front-rear direction.
In this way, even if the tapered portion 4Ha is formed on a part of the outer peripheral surface, the guide member 4H can be fixed by friction if the tapered surfaces of both are fitted so as to be in close contact with each other. it can.

As described above, in the modified example of the dental handpiece 1 of the present invention, the guide members 4A to 4D have fixing means for fixing the optical fiber 5 at an arbitrary position, and the fixing means is the inner diameter of the guide members 4A to 4D. It is composed of convex portions 4Ca, 4Da formed in at least a part in the central direction of the above, or narrowed portions 4Aa, 4Ba formed in a diameter smaller than the inner diameter of the guide members 4A, 4B.
As a result, the flexible optical fiber 5 can be arranged so as not to fall out of the guide members 4A to 4D because the movement in the axial direction is restricted by the convex portions Ca, 4Da or the narrowed portions 4Aa, 4Ba. ..

FIG. 6B (i) is a side view and a front view showing another modification of the guide member 4I.
As shown in FIG. 6B (i), the guide member 4I may be formed so as to be divided into a plurality of branch portions 4Ia by providing a branch portion 4Ia at a position closer to the central portion in the front-rear direction. In this case, the optical fiber 5 (not shown) inserted into the guide member 4I is formed in a bifurcated shape according to the shape of the guide member 4I, and is formed in the guide member 4I from the rear side toward the branch portion 4Ia side. insert.
As a result, the guide member 4I can support the optical fiber 5 inserted in the guide member 4I by locking the optical fiber 5 inserted in the guide member 4I at the bifurcated portion by forming the branch portion 4Ia. You can regulate the movement in the forward direction.

As described above, the insertion means 41 may be formed by being branched into a plurality of parts, and the optical fiber 5 (not shown) may be formed by being branched into a plurality of pieces in accordance with the branching of the insertion means 41.
As a result, the optical fiber 5 (not shown) inserted into the insertion means 41 is restricted from moving in the front-rear direction by the branch portion 4Ia, so that the optical fiber 5 can be arranged in the insertion means 41 in a stable state. Further, the insertion means 41 can emit the light introduced from one place in a plurality of places by the branch portion 4Ia.

FIG. 6C (j) is a schematic front view showing another modified example of the guide member 4J.
As shown in FIG. 6C (j), the guide member 4J may have inclined surfaces 4Ja and 4Jb inclined with respect to the axial direction on both end surfaces. In this case, the optical fiber 5 (not shown) inserted into the guide member 4J has both end faces obliquely formed according to the shape of the guide member 4J.
As a result, the guide member 4J and the optical fiber 5 (not shown) can be adjusted so that the illumination light is emitted in a desired direction by changing the incident angle and the exit angle of the light.

FIG. 6C (k) is a schematic front view showing another modification of the guide member 4K.
As shown in FIG. 6C (k), the guide member 4K may form a plurality of insertion holes 4Ka, 4Kb in which a plurality of optical fibers 5 (not shown) can be inserted and arranged in one guide member 4K.
As a result, even if the guide member 4K is one, a plurality of optical fibers 5 (not shown) can be arranged.

FIG. 6C (l) is a schematic front view showing another modified example of the guide member 4L.
As shown in FIG. 6C (l), the guide member 4L may form a bifurcated optical fiber installation hole 4La in one cylindrical member. That is, the guide member 4L has one light intake 4Lb and two (plurality) light emission ports 4Lc and 4Ld branched from the light intake 4Lb.
As a result, the guide member 4L can divide the light emitting portion into two even if it is one cylindrical member. Therefore, the outer surface shape of the guide member 4L does not become complicated.

FIG. 6D (m) is a schematic front view showing another modification of the guide member 4M.
As shown in FIG. 6D (m), the guide member 4M may be formed in a bifurcated shape by cutting one cylindrical member into a bifurcated shape. In this case, the bifurcated bifurcated portions 4Ma and 4Mb are formed in a semicircular shape in a vertical cross-sectional view.
As a result, the guide member 4M may be formed into two semicircular branches by cutting one cylindrical member in half. In this case, since the outer peripheral surface of the optical fiber 5 (not shown) is different from the refractive index of the core portion, light does not leak, so that the guide member 4M has a semicircular shape even when viewed in a vertical cross section. , Light can be guided without leakage.

FIG. 6D (n) is a schematic front view showing another modification of the guide member 4N.
In FIG. 6B (i), the guide member 4I branched in a Y shape (substantially radial shape) has been described, but the guide member 4I is not limited thereto. As shown in FIG. 6D (n), the guide member 4N has a bifurcated bifurcated light lead-out side branch tube 4Nb, 4Nc that is branched with respect to one cylindrical light introduction side tube 4Na. It may extend along the center line of the side cylinder portion 4Na.
As a result, the two light-leading branch cylinders 4Nb and 4Nc can be arranged in parallel with each other and emit light in the same direction.

As described above, the guide members 4A to 4N may be changed to an appropriate shape according to the non-illuminating body to be illuminated.

[Modification example of optical fiber]
7 (a) to 7 (e) are explanatory views showing a modified example of the optical fibers 5A to 5E.

FIG. 7A (a) is a front view showing a modified example of the optical fiber 5A.
As shown in FIG. 7A (a), the optical fiber 5A may have a convex lens portion 5Aa in which the end portion on the light emitting side is formed in a convex lens shape.
As a result, the optical fiber 5A can be locally brightly illuminated by condensing light by the convex lens portion 5Aa.

FIG. 7A (b) is a front view showing a modified example of the optical fiber 5B.
As shown in FIG. 7A (b), the optical fiber 5B may have a concave lens portion 5Ba in which the end portion on the light emitting side is formed in a concave lens shape.
As a result, the optical fiber 5B can diffuse light by the concave lens portion 5Ba so that it can be illuminated over a wide range.

FIG. 7A (c) is a front view showing a modified example of the optical fiber 5C.
As shown in FIG. 7A (c), the optical fiber 5C may have a matte portion 5Ca having a matte finish on the end portion on the light emitting side.
As a result, the optical fiber 5C can be illuminated by reducing the illuminance of the light in a state where the outline of the light irradiated by the matte portion 5Ca is blurred.

As described above, the optical fibers 5A to 5C may have a convex lens portion 5Aa, a concave lens portion 5Ba, or a matte portion 5Ca at at least one end.
As a result, the illuminance can be adjusted by condensing, diffusing, or diffusely reflecting the light emitted from the optical fibers 5A to 5C.

FIG. 7A (d) is a front view showing a modified example of the optical fiber 5D.
As shown in FIG. 7A (d), the optical fiber 5D may be provided with an optical filter 5Da at the end on the light emitting side.
Thereby, the optical fiber 5D can be made to emit various lights by the optical filter 5Da. The optical filter 5Da can improve the visibility of caries, plaque, composite resin filled in the cut tooth, and the like by making it possible to change the wavelength of light, for example. Further, the optical filter 5Da can be made so that only a specific wavelength is extracted, although the illuminance is reduced.
When the optical fiber 5D made of resin is processed to provide the optical filter 5Da, the illuminance is detected by the illuminance detecting means 9 for detecting the illuminance of the light, and the desired illuminance can be obtained, although the amount of light is limited. To some extent, a dimming means may be provided so that the output of the illumination can be adjusted automatically.

FIG. 7A (e) is a front view showing a modified example of the optical fiber 5E.
As shown in FIG. 7A (e), the optical filter 5Ea may be provided at the end of the optical fiber 5E on the light intake side. Even in this way, the same effect as described above can be obtained.

As described above, the optical fibers 5D and 5E may be provided with optical filters 5Da and 5Ea at at least one end thereof.
As a result, the optical filters 5Da and 5Ea can adjust the light emitted from the optical fibers 5D and 5E.

[Other variants of optical fiber]
Further, the optical fiber 5 may not have the picking allowances 5a and 5b shown in FIG. That is, the optical fiber 5 may have a length of the optical fiber 5 equal to or less than the length of the insertion means 41. When replacing the optical fiber 5 having no such picking allowances 5a and 5b with a new optical fiber 5, push the new optical fiber 5 into the entrance / exit 41a which is the optical fiber exchange port of the insertion means 41 into which the old optical fiber 5 is inserted. And insert it. Then, the old optical fiber 5 is pushed out to the new optical fiber 5, and can be replaced with the new optical fiber 5.
At the time of replacement, a rod-shaped jig (not shown) for pushing out the optical fiber 5 in the insertion means 41 may be used.

[Modification example of dental handpiece]
8A and 8B are views showing a modified example of the dental handpiece 1B according to the embodiment of the present invention, in which FIG. 8A is a side view and FIG. 8B is a sectional view taken along line VIII-VIII of FIG. FIG. 9 is an enlarged view of part A of FIG.

The dental handpiece 1B shown in FIGS. 8A, 8B and 9 includes a light emitting body 8B composed of an LED element, a flexible optical fiber 5F for guiding light emitted from the light emitting body 8B, and an optical fiber 5F. It includes a tubular guide member 4P to be inserted, a head portion 2, a connecting portion 3B, and an elastic resin member 6B.

The guide member 4P also serves as a skeleton of the elastic resin member 6B. In the guide member 4P, the entrance / exit 41Pa at the rear end is arranged flush with the rear end surface 6Bd of the main body covering portion at the rear end of the elastic resin member 6B, and the entrance / exit 41Pb at the front end inserts the front end surface of the elastic resin member 6B. It is arranged up to the lower surface 2c of the neck portion 2a of the head portion 2. A light emitting body 8B is arranged to face each other in the vicinity of the rear opening end of the guide member 4P.

In the optical fiber 5F, the light receiving surface 5Fc at the rear end is arranged so as to coincide with the open end of the guide member 4P, the pinching allowance 5F protrudes from the lower surface 2c of the neck 2a at the front end, and the light emitting surface 5Fd is the tool 7 (not shown). ) Is arranged diagonally toward the front end.

The head portion 2 is connected to the front end portion and the connecting portion 3B is connected to the rear end portion of the elastic resin member 6B. A guide member 4P composed of an insertion means 41P, supply pipes 42P and 43P, and a guide member 4P is fixed in the elastic resin member 6B. A reinforcing member 61B made of metal or hard resin is insert-molded at the rear end portion of the elastic resin member 6B made of soft resin.

In the connection portion 3B, a connection portion main body 31B in which a light emitting body 8B arranged to face the entrance / exit 41Pa at the rear end is arranged, a coupler 32B locked to the connection portion main body 31B, and a spring member 33C are interposed in the coupler 32B. It is mainly provided with a movable locking body 34B which is locked.

A light emitting body installation hole 31Ba for installing the light emitting body 8B is bored in the connecting portion main body 31B along the axial direction in accordance with the entrance / exit 41Pa of the guide member 4P. In the illuminant installation hole 31Ba, the substrate 35B to which the illuminant 8B is bonded, the support 36B to which the substrate 35B is mounted, and the support 36B are held in the illuminant installation hole 31Ba from the front opening side. Fixtures 37B and the fixtures 37B are sequentially and detachably inserted.

The coupler 32B has a connector 420 provided at the tip of a tube (not shown) and an electric wire (not shown) whose base end is connected to the dental unit 410 and whose tip is connected to the supply pipes 42P and 43P. However, it can be attached and detached.

The substrate 35B is provided with a conductive wire 38B protruding from the rear surface of the fixture 37B via a support 36B from the substrate 35B. The conductive wire 38B is electrically connected to a mating connector (not shown) provided on the connector 420 by connecting the connector 420 to the coupler 32B. At that time, the connection connectors 42Pa and 43Pa provided at the rear ends of the supply pipes 42P and 43P are connected to the mating side connection connector (not shown) provided with the connector 420.

As described above, since the dental handpiece 1B has the light emitting body 8B at the connecting portion 3, the light radiated from the light emitting body 8B can be efficiently sent to the optical fiber 5F. When the optical fiber 5F is deteriorated and the light transmittance is lowered, the picking allowance 5F at the front end may be picked and pulled out for replacement.

1,1A, 1B Dental handpiece 2 Head part 3,3B Connection part 4,4A-4N, 4P Guide member (piping)
4Ba, 4Ca Convex part 4Aa, 4Ba Constriction part 5,5A, 5B, 5C, 5D, 5E, 5F Optical fiber 5a, 5b, 5F Picking allowance 5Aa Convex lens part 5Ba Concave lens part 5Ca Matte part 5Da, 5Ea Optical filter 6 Elastic 7 Tool 8,8B Light emitter 9 Light receiving element (illuminance detecting means)
41, 41P Insertion means 41a, 41b, 41Pa, 41Pb Doorway 42, 42P Supply piping 100 Dental handpiece management system 200 Control device (ordering means, updating means)
250 Notification unit (notification means)
260 Communication unit 300 Storage unit 310 Clinic information (management data)
320 Durability (management data)
330 Illuminance reference value (management data)
340 Number of sterilization (management data)
350 temperature information (management data)
360 illuminance data (management data)
400 Dental clinic equipment 410 Dental unit 500 Users (information sharing destination)
510, 610, 710 Information processing device (terminal)
511,611,711 Display 600 Factory (Information sharing destination)
700 manufacturers (information sharing destination)
NW communication network

In order to solve the above-mentioned problems, the present invention includes a head portion arranged at the tip portion and to which a tool for treating the affected area is detachably attached, a connecting portion arranged at the rear end portion, and the head portion. A dental handpiece having a plurality of guide members communicating with the connecting portion, and connecting the connecting portion to a dental unit provided with a supply means for supplying energy, wherein the guide member is used. Includes a supply pipe that supplies energy to the head portion, and at least one of the guide members is an insertion means capable of attaching / detaching and inserting a flexible optical fiber between the connection portion and the vicinity of the tool. Yes, and the insertion means, the optical fiber is, the direction from the connecting portion in the vicinity of the tool, and, while allowing through at least one direction of the direction toward the connecting portion from the vicinity of the tool, the When installing the optical fiber, the optical fiber has an entrance / exit that allows the end portion of the optical fiber to project toward the vicinity side of the tool or the connection portion side, and the optical fiber is at least the said on the connection portion side. It has a picking allowance that is arranged so as to project from the doorway, and is characterized in that it can be replaced by picking the picking allowance and inserting and removing it from the insertion means .
Here, the "energy" is light such as illumination light or laser light, liquid such as water or cleaning liquid, gas such as air, electric power, or the like.

Further, in the dental handpiece management system of the present invention, a head portion arranged at the tip portion and a tool for treating the affected area is detachably attached, a connecting portion arranged at the rear end portion, and the head. Dental dentistry including a plurality of guide members that communicate the portion and the connection portion, an insertion means arranged in the vicinity of the tool from the connection portion, and a flexible optical fiber inserted into the insertion means. A communication unit that transmits and receives information between a handpiece, a dental unit having a supply means for supplying energy to the connection unit, and an information sharing destination having a processing unit capable of communicating via a communication network. , The storage unit that stores the illuminance data of the optical fiber or the management data of the optical fiber, the illuminance detected by the illuminance detecting means under a predetermined constant condition, and the illuminance data are compared. When the illuminance of the flexible optical fiber is low, or when the age of the flexible optical fiber recorded in the management data is compared and the endurance period has passed, the dental unit, information. A notification means for notifying the deterioration and replacement of the flexible optical fiber on the display unit of the sharing destination manufacturer or the user's terminal, and a replacement flexible optical fiber on the terminal of the information sharing destination manufacturer. automatically, or, detection and ordering means for ordering optionally, to confirm that the optical fiber is replaced by the user, that the illuminance in comparison with the newly detected illuminance and the illuminance data is improved It is characterized in that it includes an optical fiber detecting means for updating the management data and an updating means for updating the management data.

Further, in the present invention, the head portion arranged at the tip portion and the tool for treating the affected area is detachably attached, the connecting portion arranged at the rear end portion, and the head portion and the connecting portion are provided. A plurality of guide members that communicate with each other, an insertion means arranged from the connection portion to the vicinity of the tool, and an insertion means that are freely arranged through the insertion means to allow light radiated from a light source to enter from one end. An optical fiber replacement method for a dental handpiece including an optical fiber emitted from the other end, wherein the dental handpiece is any one of an air turbine handpiece, a micromotor handpiece, an ultrasonic scaler, and a multi-way syringe. In the optical fiber , the optical fiber formed of a flexible material is inserted and arranged from one end or the other end of the insertion means, and a pinching allowance formed at the end of the optical fiber is pulled out. Alternatively, it is characterized in that it is removed from the insertion means and replaced by pushing it out.

Claims (14)

A head part that is arranged at the tip and is detachably attached with a tool for treating the affected area,
The connection part arranged at the rear end and
It has a plurality of guide members that communicate the head portion and the connection portion.
A dental handpiece used by connecting the connection portion to a dental unit provided with a supply means for supplying energy.
The guide member includes a supply pipe that supplies energy to the head portion.
At least one of the guide members has an insertion means capable of attaching / detaching and inserting a flexible optical fiber between the connection portion and the vicinity of the tool.
A dental handpiece featuring. The insertion means enables the optical fiber to penetrate in at least one direction from the connection portion toward the vicinity of the tool and from the vicinity of the tool toward the connection portion.
The dental handpiece according to claim 1. The insertion means has an entrance / exit that allows the end portion of the optical fiber to project toward the vicinity side of the tool or the connection portion side when the optical fiber is installed.
The dental handpiece according to claim 1 or 2. The guide member has a fixing means for fixing the optical fiber at an arbitrary position.
The fixing means comprises a convex portion formed in at least a part of the inner diameter of the guide member in the central direction, or a narrowed portion formed in a diameter smaller than the inner diameter of the guide member.
The dental handpiece according to any one of claims 1 to 3, wherein the dental handpiece is characterized. The optical fiber is a resin optical fiber.
The dental handpiece according to any one of claims 1 to 4, wherein the dental handpiece is characterized. The optical fiber has a convex lens portion, a concave lens portion, or a matte portion at at least one end.
The dental handpiece according to any one of claims 1 to 5. The optical fiber has an optical filter at at least one end.
The dental handpiece according to any one of claims 1 to 6, wherein the dental handpiece is characterized. The guide member is a metal pipe and
Having an elastic resin member mounted so as to cover the metal pipe from the rear end portion of the head portion to the tip portion of the connection portion.
The dental handpiece according to any one of claims 1 to 7. The dental handpiece shall be any one of an air turbine handpiece, a micromotor handpiece, a contra-angle handpiece, an ultrasonic scaler, a tooth surface cleaner, a multi-way syringe, and a laser device handpiece.
The dental handpiece according to any one of claims 1 to 8. A light receiving element for detecting the intensity of light guided from the optical fiber was provided in the vicinity of the head portion to enable detection of illuminance.
The dental handpiece according to any one of claims 1 to 9. The insertion means is formed by branching into a plurality of parts.
The optical fiber is formed by being branched into a plurality of pieces according to the branching of the insertion means.
The dental handpiece according to any one of claims 1 to 10. A head part that is arranged at the tip and is detachably attached with a tool for treating the affected area,
The connection part arranged at the rear end and
A plurality of guide members that communicate the head portion and the connection portion,
An insertion means arranged in the vicinity of the tool from the connection portion, and
A dental handpiece comprising a flexible optical fiber inserted into the insertion means.
A dental unit provided with a supply means for supplying energy to the connection, and
A communication unit that sends and receives information to and from an information sharing destination that has a processing unit that can communicate via a communication network.
A storage unit that stores the illuminance data of the optical fiber or the management data of the optical fiber.
The illuminance detected by the illuminance detecting means under a predetermined constant condition is compared with the illuminance data, and when the illuminance of the flexible optical fiber is reduced or recorded in the management data. Compare the ages of the flexible optical fibers, and when the endurance has passed, the flexible optical fiber is displayed on the display of the dental unit, the manufacturer of the information sharing destination, or the user's terminal. Notification means for notifying deterioration and replacement,
An ordering means for automatically or arbitrarily ordering a replacement flexible optical fiber from the terminal of the manufacturer to which the information is shared, and
An illuminance detecting means for detecting that the illuminance has improved by comparing the newly detected illuminance with the illuminance data when the user has replaced the delivered flexible optical fiber.
Having an update means for updating the management data,
A dental handpiece management system featuring. Further, at least one of the guide members includes adding a guide member separately from the existing guide member.
12. The dental handpiece management system according to claim 12. A head part that is arranged at the tip and is detachably attached with a tool for treating the affected area,
The connection part arranged at the rear end and
A plurality of guide members that communicate the head portion and the connection portion,
Insertion means arranged from the connection portion to the vicinity of the tool, and
A method for exchanging an optical fiber for a dental handpiece, which is provided with an optical fiber that is freely inserted into the insertion means and that receives light radiated from a light source from one end and emits the light from the other end.
The optical fiber is arranged by inserting the optical fiber formed of a flexible material from one end or the other end of the insertion means, and pulls out or extrudes a pinching allowance formed at the end of the optical fiber. By removing it from the insertion means and replacing it,
How to replace an optical fiber for a dental handpiece, characterized by.

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