WO2021039670A1 - Dental treatment tool - Google Patents

Dental treatment tool Download PDF

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Publication number
WO2021039670A1
WO2021039670A1 PCT/JP2020/031720 JP2020031720W WO2021039670A1 WO 2021039670 A1 WO2021039670 A1 WO 2021039670A1 JP 2020031720 W JP2020031720 W JP 2020031720W WO 2021039670 A1 WO2021039670 A1 WO 2021039670A1
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WO
WIPO (PCT)
Prior art keywords
dental treatment
treatment instrument
code
grip portion
outer peripheral
Prior art date
Application number
PCT/JP2020/031720
Other languages
French (fr)
Japanese (ja)
Inventor
和彦 松谷
知也 大根田
貴史 重盛
弘子 佐藤
Original Assignee
マニー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マニー株式会社 filed Critical マニー株式会社
Publication of WO2021039670A1 publication Critical patent/WO2021039670A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
    • A61C5/42—Files for root canals; Handgrips or guiding means therefor

Definitions

  • This disclosure relates to dental treatment instruments.
  • Examples of this type of dental treatment instrument include, in Patent Document 1, a working portion having a spiral cutting edge and a shape that narrows toward the tip, and a rear end of the working portion that is connected to the rear end of the working portion.
  • a dental root canal cutting tool having a shaft having the same diameter as the circumscribed circle of the cross section and a grip portion connected to the rear end of the shaft and connected to the dental handpiece has been proposed.
  • dental treatment instruments such as dental root canal cutting tools may be used multiple times.
  • Dental treatment instruments that have been used multiple times may break in the root canal during treatment due to fatigue breakage.
  • a disc is attached to a dental treatment instrument, a part of the disc is torn off each time the treatment instrument is used, and fragments of the disc are counted, or a worker uses the dental treatment instrument. The number of times it is used is recorded for each. In this way, by managing the number of times the dental treatment instrument is used, the treatment instrument is replaced before the treatment instrument breaks due to fatigue.
  • the dental treatment instrument becomes fatigued. It may break.
  • Patent Document 2 includes a recognition unit that recognizes a medical device, an evaluation information storage unit that stores evaluation information including a load value that evaluates a load acting on the medical device, and usage conditions of the medical device.
  • An arithmetic processing unit that calculates the integrated load value that integrates the corresponding load values, an integrated load value storage unit that stores the integrated load value, and an exchange that stores a replacement reference value preset for the medical device.
  • a notification device including a reference value storage unit, a comparison determination unit that compares an integrated load value and an exchange reference value for determination, and a notification unit that notifies by a predetermined operation based on the result of determination by the comparison determination unit. Handpieces and medical devices equipped with a notification device have been proposed.
  • the notification device described in Patent Document 2 can notify that when a medical device is used beyond an appropriate range, the use exceeds the appropriate range of the medical device.
  • Patent Document 2 does not specifically describe the configuration of the recognized portion of the dental treatment instrument recognized by the recognition portion. Therefore, the notification device described in Patent Document 2 may cause a recognition error, such as erroneously recognizing or not recognizing information about the dental treatment instrument itself.
  • the present disclosure has been made in view of this point, and the purpose of the disclosure is to prevent misrecognition or inability to recognize information on dental treatment instruments.
  • the dental treatment instrument disclosed here includes a rod-shaped grip portion and a working portion provided on the tip end side of the grip portion.
  • a plane is formed at the base end of the grip portion in which a part of the outer peripheral surface in the circumferential direction is cut out, and the plane of the grip portion and the outer peripheral surface of the grip portion in the circumferential direction.
  • a code for expressing information about the dental treatment instrument is attached to at least one of the outer peripheral surface portion and the proximal end surface portion of the grip portion at substantially the same position.
  • a plane formed by cutting out a part of the outer peripheral surface of the base end portion of the grip portion in the circumferential direction, and the outer peripheral surface of the grip portion are at substantially the same position with respect to the plane and the circumferential direction.
  • a code for expressing information about the dental treatment instrument is attached to at least one of the outer peripheral surface portion and the proximal end surface of the grip portion. That is, since the code is attached to a portion of the grip portion that is relatively easy to check with the eyes or a reader, the code can be easily read. Therefore, it is possible to prevent the information about the dental treatment instrument from being erroneously recognized or not recognized.
  • the cord may be attached to at least one of the plane surface and the outer peripheral surface portion, and the base end surface portion.
  • the cord is attached to at least one of the flat surface and the outer peripheral surface portion and the base end surface, the flat surface is oriented so as to be easily confirmed by an eye or a reader or the like. , The cord attached to at least one of the flat surface and the outer peripheral surface portion can be read more easily. Therefore, it is possible to further suppress the misrecognition or inability to recognize the information regarding the dental treatment instrument.
  • FIG. 7 It is a perspective view which shows the whole structure of the dental treatment instrument of this disclosure. It is a perspective view which shows the 1st modification of FIG. It is a perspective view which shows the 2nd modification of FIG. It is sectional drawing which shows typically the dental treatment instrument in a packaged state. It is sectional drawing which shows typically the modification of FIG. It is the schematic which shows the whole structure of the breakage prediction system of a dental treatment instrument. It is sectional drawing which shows typically the internal structure of the reading device which reads the code of a dental treatment instrument. It is sectional drawing which shows typically the modification of FIG. 7.
  • FIG. 1 shows a dental treatment instrument A according to an embodiment of the present disclosure.
  • the dental treatment instrument A is, for example, an engine reamer, a file (K file, H file, O file, flare file, etc.), a pea reamer, a gates drill, etc. used when treating the root canal of a tooth in dental treatment.
  • the dental treatment instrument A includes a rod-shaped grip portion 1, a work portion 12 provided on the tip end side (one end side in the axial direction) of the grip portion 1, and a shaft portion 15 continuously provided on the work portion 12. And.
  • the working portion 12 and the shaft portion 15 are formed of a superelastic alloy in the shape of a target treatment instrument and are subjected to memory heat treatment so as to exhibit superelastic performance in a normal temperature range.
  • the working portion 12 and the shaft portion 15 are highly flexible and have high resilience, and have high adaptability to changes in root canal shape that vary greatly among individuals during root canal treatment.
  • a shape memory alloy containing nickel (Ni) -titanium (Ti) is preferable.
  • the working portion 12 and the shaft portion 15 may be made of rust-resistant stainless steel (for example, martensitic stainless steel, austenitic stainless steel, etc.).
  • the working part 12 is a part that actually treats an affected part such as a root canal of a tooth, and has a cutting edge, an edge, or the like corresponding to the purpose of treatment. More specifically, the working portion 12 is formed in a tapered shape whose diameter gradually decreases in a substantially conical shape toward the tip, and is composed of a spiral groove 13 and a cutting edge 14 along the groove 13. The cutting edge 14 may be formed in a spiral shape, a straight needle shape, or the like. Further, the taper shape of the working unit 12 is defined by ISO, and is set to 2/100 for, for example, a K file or an H file.
  • the shaft portion 15 is continuously formed in a shaft shape at the base end of the working portion 12.
  • the axial base end portion (end portion on the grip portion 1 side) of the shaft portion 15 is connected to the grip portion 1.
  • the grip portion 1 is one that is gripped and operated by a worker such as a dentist, or one that is gripped by a chuck of a handpiece (rotating tool) to give rotation to the working portion 12.
  • the grip portion 1 is made of a metal such as synthetic resin or stainless steel.
  • the grip portion 1 is formed in the shape of a round bar.
  • the grip portion 1 may be formed in a shape other than the round bar shape (for example, a square bar shape).
  • the tip surface 2 of the grip portion 1 is formed with a circular connection hole (not shown) into which the base end portion of the shaft portion 15 is inserted.
  • the base end portion of the shaft portion 15 is inserted into this connection hole, and the grip portion 1 and the working portion 12 are connected and integrated with each other via the shaft portion 15 by adhering with an adhesive such as an anaerobic adhesive.
  • the dental treatment instrument A that has become is configured.
  • a D-cut plane 3 and a flat surface 5 are formed at the base end portion (the other end portion in the axial direction) of the grip portion 1 by cutting out a part of the outer peripheral surface in the circumferential direction.
  • the D-cut plane 3 is a surface extending from the base end surface 4 of the grip portion 1 to the work portion 12 side along the axial direction of the grip portion 1.
  • the base end surface 4 has a substantially D shape in the axial direction.
  • the plane 5 is a substantially D-shaped plane on the D-cut plane 3 that is continuous with the end opposite to the base end plane 4 and orthogonal to the D-cut plane 3.
  • the portion of the grip portion 1 on which the D-cut flat surface 3 is formed is locked to the inside of the handpiece or the like (not shown) to suppress the rotation of the grip portion 1 (idle of the work portion 12) inside the grip portion 1. At the same time, the grip portion 1 is prevented from falling off from the handpiece when the working portion 12 is rotated.
  • a diameter-reduced portion 6 having a diameter smaller than that of the other portions and a diameter-reduced portion 6 corresponding to the axial intermediate portion of the D-cut plane 3 are continuous at both ends in the axial direction.
  • a first facing surface 7 and a second facing surface 8 that are orthogonal to the D-cut plane 3 and face each other in the axial direction are formed.
  • the D-cut plane 3 has a substantially H shape in the radial direction.
  • the outer peripheral surface of the grip portion 1 on the tip side of the D-cut plane 3 is referred to as the outer peripheral surface portion 9.
  • the outer peripheral surface of the grip portion 1 is not only the outer surface having the same outer diameter when the grip portion 1 is viewed from its axial direction, but also the outer diameter of the grip portion 1 is reduced or expanded compared to the outer diameter of other parts. Refers to the surface including the outer surface of the removed part.
  • the base end surface of the grip portion 1 refers not only to the end surface located at the most end of the grip portion 1, but also to the surface including the bottom surface of the groove formed on the surface.
  • a code 10 expressing information regarding the dental treatment instrument A is printed on the D-cut flat surface 3, the outer peripheral surface portion 9, and the proximal end surface 4 of the grip portion 1, respectively.
  • the code 10 includes a code 10a printed on the D-cut flat surface 3, a code 10b printed on the outer peripheral surface portion 9, and a code 10c printed on the base end surface 4.
  • the information about the dental treatment instrument A is, for example, individual identification information.
  • the individual identification information include the product number, the product size (specifically, the size of the working unit 12 standardized by the ISO standard), the corresponding standard color, the serial number, the date of manufacture, and the like.
  • the individual identification information includes not only information attached to each lot or the like (identifiers used for medical devices or the like called UDI (Unique Device Identification, device identification information)), but also 1 Information attached to each book (unique information such as an individual identification number, which is different for each book) is included.
  • UDI Unique Device Identification, device identification information
  • the code 10 is a two-dimensional code that can be read by a reader such as a QR code (registered trademark), or an eye or reader such as a mark having a shape such as a circle, a semicircle, a square, a star, or a combination thereof.
  • a code that can be read by Among these, a two-dimensional code that can be read by a reader is preferable from the viewpoint of suppressing erroneous recognition of information regarding the dental treatment instrument A.
  • a reader such as a two-dimensional code reader that is generally commercially available can be used.
  • the method of printing the code 10 at a predetermined position of the dental treatment instrument A is not particularly limited, and a generally used method can be used.
  • the code 10a is displayed on the intermediate portion in the axial direction of the tip portion of the D-cut plane 3 in the grip portion 1.
  • the code 10a is not easily worn because it is printed not on the outer peripheral surface of the grip portion 1 but on the D-cut flat surface 3 formed by cutting out a part of the outer peripheral surface in the circumferential direction.
  • the display position of the code 10a may be on the D-cut plane 3 and is not particularly limited, but from the viewpoint of further facilitating the reading of the code 10a, the intermediate portion in the axial direction of the D-cut plane 3 is preferable.
  • the code 10b is displayed on the peripheral intermediate portion of the grip portion 1 near the base end of the outer peripheral surface portion 9. That is, the code 10b is displayed at substantially the same position as the code 10a with respect to the axial direction of the D-cut plane 3 when viewed from the direction perpendicular to the D-cut plane 3.
  • the cord 10b can be easily positioned in the circumferential direction of the cord 10b by using the D-cut plane 3 and directing the D-cut plane 3 in a direction that can be easily confirmed by an eye or a reader or the like. This facilitates reading of the code 10b with or without the code 10a.
  • the display position of the code 10b is not particularly limited as long as it is on the outer peripheral surface portion 9, and may be, for example, closer to the tip.
  • the cord 10b may be provided in a rectangular shape extending in the axial direction of the grip portion 1.
  • the space of the outer peripheral surface portion 9 can be efficiently used, and the reading quality and mass productivity of the code 10b are improved.
  • the code 10b may be displayed on a reduced diameter portion provided on a part of the outer peripheral surface of the grip portion 1 and having a diameter smaller than the outer diameter of the outer peripheral surface.
  • the cord 10b is a portion of the outer peripheral surface of the reduced diameter portion at a position substantially the same as the outer peripheral surface portion 9 (a position substantially the same as the D-cut plane 3 in the circumferential direction) (hereinafter, “diameter reduced surface portion 11””. It is displayed in).
  • the reduced diameter surface portion 11 is a bottom surface (concave surface) of a groove formed by slightly scraping a part of the outer peripheral surface portion 9.
  • the reduced diameter portion is provided over the entire outer peripheral surface (entire circumference) thereof, but may be provided only on the reduced diameter surface portion 11 of the outer peripheral surface.
  • the width (axial length) of the reduced diameter surface portion 11 (reduced diameter portion) is not particularly limited, and may be appropriately determined according to the shape, size, and the like of the cord 10b.
  • the depth of the reduced diameter surface portion 11 (the depth of the groove) may be, for example, 0.01 mm or more, preferably about 0.05 mm.
  • the code 10c is displayed on the central portion of the base end surface 4 of the grip portion 1. Even when the codes 10a and 10b are relatively difficult to read, the code 10c is printed on a plane orthogonal to the D-cut plane 3, so that the code 10c can be easily read.
  • the code 10c can also be used as a double check for code reading when used in combination with the codes 10a and 10b. That is, the reading of the code 10 becomes even more accurate.
  • the cord 10c may be displayed on the bottom surface of the groove (hereinafter referred to as "base end concave surface 16") formed by slightly scraping the central portion of the base end surface 4.
  • the base end concave surface 16 is a plane orthogonal to the D-cut plane 3.
  • the size of the base end concave surface 16 is not particularly limited, and may be appropriately determined according to the shape, size, and the like of the cord 10c.
  • the depth of the base end concave surface 16 may be, for example, 0.01 mm or more, preferably about 0.05 mm.
  • the operator inserts the working portion 12 into the root canal of the tooth to be treated by using the handpiece in which the grip portion 1 is gripped, and in the direction of the cutting edge 14. By moving in the axial direction while rotating, the inner wall surface of the root canal can be cut to form the root canal.
  • the dental treatment instrument A is packaged in blister packs 22 and 24 as packaging tools.
  • the blister packs 22 and 24 are composed of blister members 20 and 23 made of a transparent resin material and a sealing member 21 for sealing the blister members 20 and 23.
  • the blister members 20 and 23 are formed in a substantially cylindrical shape so as to correspond to the outer shape of the dental treatment instrument A, and have a length that suppresses the axial movement of the dental treatment instrument A in the blister members 20 and 23. It has been adjusted.
  • the dental treatment instrument A has a D-cut flat surface 3 on the grip portion 1. Therefore, in the blister pack 22 shown in FIG. 4, the blister member 20 is formed along the D-cut plane 3. As a result, the rotation of the dental treatment instrument A around the axis in the blister pack 22 is suppressed.
  • the portion of the blister member 23 facing the base end surface 4 of the grip portion 1 is inclined to the side opposite to the grip portion 1 (lower side in FIG. 5) toward the sealing member 21.
  • a flat surface portion 25 is provided.
  • the shapes of the blister members 20 and 23 of the blister packs 22 and 24 in which the dental treatment instrument A is packaged are devised according to the shape of the grip portion 1 (particularly the D-cut flat surface 3) of the dental treatment instrument A. By doing so, the rotation of the dental treatment instrument A around the axis is suppressed.
  • the D-cut plane 3 and the outer peripheral surface portion 9 face the opposite side to the sealing member 21, so that the dental treatment instrument A passes through the blister members 20 and 23.
  • the codes 10a and 10b printed on the D-cut flat surface 3 and the outer peripheral surface portion 9 can be easily read by a reader (not shown). As a result, even when the dental treatment instrument A is packaged in the packaging tool, it is easy to confirm the information about the dental treatment instrument A, and the product management becomes easy.
  • the code 10c is printed on the base end surface 4 of the grip portion 1 of the dental treatment instrument A, the code 10c can be easily read regardless of the presence or absence of rotation of the dental treatment instrument A.
  • the packaging tool for the dental treatment instrument A is not limited to the blister packs 22 and 24, and may be, for example, a hard case made of a transparent resin material.
  • the dental treatment instrument A may be sterilized after use and reused.
  • the fracture prediction system S and the like shown in FIG. 6 are used to predict the fracture of the dental treatment instrument A, thereby suppressing the fracture of the dental treatment instrument A during grinding.
  • the individual identification information of the dental treatment instrument A is used for the fracture prediction of the instrument A.
  • the breakage prediction system S is a rectangular reading device 30 that reads the code 10 of the dental treatment instrument A, a handpiece 40 that holds the dental treatment instrument A, and these reading devices 30 and the handpiece 40 via the Internet. It is composed of an electronic device 50 that transmits and receives individual identification information (data) of the dental treatment instrument A, manages the data, and displays the result of breakage prediction and the like.
  • the reading device 30 has a grip portion 1 of the dental treatment instrument A inserted therein, reads a code 10 printed on the grip portion 1, and is an individual of the dental treatment instrument A obtained from the read code 10.
  • the identification information is transmitted to the electronic device 50.
  • the handpiece 40 records cumulative information such as the cumulative load and the cumulative number of rotations of the dental treatment instrument A used, and when the one-time use of the dental treatment instrument A is completed or a signal from the electronic device 50. Is received, the cumulative information is transmitted to the electronic device 50.
  • the electronic device 50 is not particularly limited, and a mobile phone, a tablet terminal, a personal computer, or the like can be used.
  • the electronic device 50 receives the individual identification information of the dental treatment instrument A from the reading device 30, the electronic device 50 has a cumulative load resistance and a cumulative rotation speed resistance recorded in advance in the electronic device 50 and associated with the individual identification information.
  • the recommended durability information provided by the manufacturer such as the number and the latest information among the cumulative information received from the handpiece 40 and recorded in the electronic device 50 are read out.
  • the electronic device 50 compares the recommended durability information and the latest cumulative information, and displays the current fatigue accumulation status of the dental treatment instrument A with a mark imitating a human face or the like.
  • processing such as sounding a warning sound or stopping the operation of the handpiece 40 may be performed.
  • a circular accommodating hole 31 is formed on the upper surface of the reading device 30 to accommodate the portion of the grip portion 1 of the dental treatment instrument A on which the code 10 is printed. There is.
  • a reader 33 is provided on one side (right side in FIG. 7) of the accommodating hole 31 of the reading device 30.
  • a flat surface portion 32 that inclines downward toward the other side of the accommodating hole 31 (the side opposite to the reader 33; the left side in FIG. 7) is provided.
  • the reading device 30 When the grip portion 1 is inserted into the accommodating hole 31, the reading device 30 generates a slight vibration v to rotate the grip portion 1 around its axis to form the base end surface 4 of the grip portion 1.
  • the string 4a is brought into contact with the flat surface portion 32.
  • the grip portion 1 in the accommodating hole 31 is positioned and fixed so that the D-cut flat surface 3 (code 10a) and the outer peripheral surface portion 9 (code 10b) face the reader 33, so that the codes 10a and 10b can be easily operated. Can be read by.
  • a reader (not shown) may be provided at a position facing the code 10c in order to read the code 10c printed on the base end surface 4 of the grip portion 1.
  • the accommodating hole 31 penetrates in the vertical direction.
  • the inner peripheral surface of the accommodating hole 31 is provided with a substantially D-shaped projecting portion 35 that projects inward in the radial direction along the D-cut plane 3 from the intermediate portion in the vertical direction to the lower end. Then, when the grip portion 1 is inserted into the accommodating hole 31, the flat surface 5 comes into contact with the protruding portion 35. As a result, the rotation of the grip portion 1 around the axis is suppressed, and the grip portion 1 in the accommodating hole 31 is positioned and fixed.
  • a lens 34 that enlarges the code 10c printed on the proximal end surface 4 closes the accommodating hole 31 below the proximal end surface 4 of the grip portion 1 inserted into the accommodating hole 31. It is provided as follows. As a result, the code 10c is enlarged by passing through the lens 34, and the image read by the reader (not shown) also becomes the enlarged image 37, so that the code 10c can be read easily and accurately.
  • the inner peripheral surface of the accommodating hole 31 is gripped by providing a contact member (not shown) that comes into contact with the first facing surface 7 when the grip portion 1 is inserted into the accommodating hole 31 instead of the protruding portion 35.
  • the grip portion 1 in the accommodating hole 31 may be positioned and fixed by suppressing the rotation of the portion 1 around the axis.
  • the dental treatment instrument A configured as described above has a code 10a printed on the D-cut flat surface 3, a code 10b printed on the outer peripheral surface portion 9, and a code printed on the proximal end surface 4 in the grip portion 1. It has 10c and.
  • the codes 10a and 10b can be easily read by using the D-cut plane 3 and directing the D-cut plane 3 in a direction that can be easily confirmed by an eye or a reader or the like.
  • the code 10c is displayed on a plane orthogonal to the D-cut plane 3, the code 10c can be easily read regardless of the orientation of the D-cut plane 3.
  • the dental treatment instrument A among these three codes 10a, 10b, and 10c, the code 10 that is most easily confirmed by the eyes or a reader can be appropriately selected and read. Therefore, the dental treatment instrument A can prevent the information about the dental treatment instrument A from being erroneously recognized or not recognized.
  • the D-cut flat surface 3 can be oriented so that it can be easily confirmed by the eyes or a reader or the like.
  • the dental treatment instrument A can easily read the information about the dental treatment instrument A even when it is wrapped in the packaging tool, so that the information may be erroneously recognized or not recognized. Can be suppressed.
  • the dental treatment instrument A can position and fix the D-cut plane 3 so as to face the reader 33 by devising the internal structure of the reader 30 provided with the reader 33 according to the shape of the D-cut plane 3 and the like. ..
  • the dental treatment instrument A can easily read the information about the dental treatment instrument A by using the reading device 30, and thus it is possible to prevent the information from being erroneously recognized or not recognized.
  • the fracture prediction system S configured by combining the reading device 30, the handpiece 40, and the electronic device 50, the correctly recognized information on the dental treatment instrument A is used for the fracture prediction of the instrument A. it can. As a result, it is possible to suppress the breakage of the dental treatment instrument A during use.
  • the code 10 is attached by printing, but the means for attaching the code 10 is not particularly limited, and the code 10 can be attached by engraving or the like.
  • the code 10 is printed on the D-cut plane 3, the outer peripheral surface portion 9, and the base end surface 4 of the grip portion 1, but it is sufficient that the code 10 is printed on at least one of them. It is preferable that the code 10 is printed on at least one of the D-cut flat surface 3 and the outer peripheral surface portion 9 and the base end surface 4.
  • the grip portion 1 is formed with a reduced diameter portion 6, a first facing surface 7, and a second facing surface 8, but these may not be formed.
  • the fracture prediction system S of the dental treatment instrument A is composed of a reading device 30, a handpiece 40, and an electronic device 50, but is not limited to this, and is composed of the reading device 30 and the electronic device 50. (Function) may be provided in the handpiece 40.
  • the dental treatment instrument A is an instrument that cuts the inside of the root canal, but cuts the entrance and the outside of the root canal, applies a drug to the inside of the root canal, and removes the gutter percha in the root canal. It can also be applied to equipment that does.
  • the present disclosure is applicable to dental treatment instruments used when treating the root canal of a tooth.

Abstract

The present invention prevents misrecognition and recognition failure of information relating to a dental treatment tool. A dental treatment tool (A) comprises a rod-like holding part (1) and an operation part (12) that is provided on a distal end of the holding part (1). The holding part (1) has, on a proximal end portion, a D-cut plane (3) formed by cutting a circumferential portion of the outer circumferential surface. A code (10) that represents information relating to the dental treatment tool (A) is attached to at least one of the D-cut plane (3) of the holding part (1), an outer circumferential surface portion (9) of the outer circumferential surface of the holding part (1) that is substantially in the same circumferential position as the D-cut plane (3), and a proximal end surface (4) of the holding part (1).

Description

歯科用治療器具Dental treatment equipment
　本開示は、歯科用治療器具に関するものである。 This disclosure relates to dental treatment instruments.
　この種の歯科用治療器具としては、例えば、特許文献１に、螺旋状の切刃からなり先端に向かって細くなっている形状の作業部と、作業部の後端に連なり作業部の後端断面の外接円と同一径のシャフトと、シャフトの後端に連なり歯科用ハンドピースに接続される把持部と、を有する歯科用根管切削具が提案されている。 Examples of this type of dental treatment instrument include, in Patent Document 1, a working portion having a spiral cutting edge and a shape that narrows toward the tip, and a rear end of the working portion that is connected to the rear end of the working portion. A dental root canal cutting tool having a shaft having the same diameter as the circumscribed circle of the cross section and a grip portion connected to the rear end of the shaft and connected to the dental handpiece has been proposed.
　ところで、歯科用根管切削具等の歯科用治療器具は、複数回使用されることがある。複数回使用された歯科用治療器具は、疲労破断によって治療中に根管内で破断するおそれがある。 By the way, dental treatment instruments such as dental root canal cutting tools may be used multiple times. Dental treatment instruments that have been used multiple times may break in the root canal during treatment due to fatigue breakage.
　そこで、臨床現場では、例えば、歯科用治療器具にディスクを取り付け、この治療器具を使用する毎にディスクの一部をちぎり、そのディスクの断片を数えたり、作業者が歯科用治療器具を使用する毎にその使用回数を記録している。このように、歯科用治療器具の使用回数を管理することで、該治療器具が疲労破断する前に、該治療器具を交換するようにしている。 Therefore, in clinical practice, for example, a disc is attached to a dental treatment instrument, a part of the disc is torn off each time the treatment instrument is used, and fragments of the disc are counted, or a worker uses the dental treatment instrument. The number of times it is used is recorded for each. In this way, by managing the number of times the dental treatment instrument is used, the treatment instrument is replaced before the treatment instrument breaks due to fatigue.
　しかし、歯科用治療器具の使用回数を正しく管理していても、トルク、回転数、１回当たりの使用時間等の適正な範囲を超えて歯科用治療器具を使用した場合、該治療器具が疲労破断するおそれがある。 However, even if the number of times the dental treatment instrument is used is properly managed, if the dental treatment instrument is used beyond an appropriate range such as torque, rotation speed, and usage time per use, the treatment instrument becomes fatigued. It may break.
　そのため、特許文献２には、医療用機器を認識する認識部と、医療用機器に作用する負荷を評価した負荷値を含む評価情報を記憶する評価情報記憶部と、医療用機器の使用条件に対応する前記負荷値を積算した積算負荷値を算出する演算処理部と、積算負荷値を記憶する積算負荷値記憶部と、医療用機器に対して予め設定された交換基準値が記憶された交換基準値記憶部と、積算負荷値と交換基準値とを比較して判定を行う比較判定部と、比較判定部で判定した結果に基づき、所定動作により報知する報知部とを備えた報知装置、報知装置を備えたハンドピース及び医療用装置等が提案されている。 Therefore, Patent Document 2 includes a recognition unit that recognizes a medical device, an evaluation information storage unit that stores evaluation information including a load value that evaluates a load acting on the medical device, and usage conditions of the medical device. An arithmetic processing unit that calculates the integrated load value that integrates the corresponding load values, an integrated load value storage unit that stores the integrated load value, and an exchange that stores a replacement reference value preset for the medical device. A notification device including a reference value storage unit, a comparison determination unit that compares an integrated load value and an exchange reference value for determination, and a notification unit that notifies by a predetermined operation based on the result of determination by the comparison determination unit. Handpieces and medical devices equipped with a notification device have been proposed.
　特許文献２に記載の報知装置では、医療用機器を適正な範囲を超えて使用した場合に、当該使用が医療用機器の前記適正な範囲を超えている旨を報知できる。 The notification device described in Patent Document 2 can notify that when a medical device is used beyond an appropriate range, the use exceeds the appropriate range of the medical device.
特開２０１７－１１３３６１号公報Japanese Unexamined Patent Publication No. 2017-113361 特許第５８７５６６６号公報Japanese Patent No. 5875666
　ところで、歯科用治療器具が治療中に根管内で破断することを抑制するために、歯科用治療器具の破断を予知したいという要望がある。そのためには、歯科用治療器具の使用が適正な範囲かどうかを判定するときの基準データとして歯科用治療器具に表現された該器具自身に関する情報を誤認識したり認識できなかったりすることを抑制する必要がある。 By the way, in order to prevent the dental treatment instrument from breaking in the root canal during treatment, there is a desire to predict the breakage of the dental treatment instrument. For that purpose, it is possible to prevent misrecognition or inability to recognize the information about the dental treatment instrument itself expressed in the dental treatment instrument as reference data for determining whether or not the use of the dental treatment instrument is within an appropriate range. There is a need to.
　しかしながら、特許文献２には、認識部により認識される、歯科用治療器具の被認識部の構成については具体的に記載されていない。そのため、特許文献２に記載の報知装置では、歯科用治療器具自身に関する情報を誤認識したり認識できなかったりする等、認識エラーとなるおそれがある。 However, Patent Document 2 does not specifically describe the configuration of the recognized portion of the dental treatment instrument recognized by the recognition portion. Therefore, the notification device described in Patent Document 2 may cause a recognition error, such as erroneously recognizing or not recognizing information about the dental treatment instrument itself.
　本開示は、かかる点に鑑みてなされたものであり、その目的とするところは、歯科用治療器具に関する情報を誤認識したり認識できなかったりすることを抑制することにある。 The present disclosure has been made in view of this point, and the purpose of the disclosure is to prevent misrecognition or inability to recognize information on dental treatment instruments.
　ここに開示する歯科用治療器具は、棒状の把持部と、該把持部の先端側に設けられた作業部とを備える。前記把持部の基端部には、外周面の周方向の一部が切り欠かれた平面が形成されており、前記把持部の前記平面、該把持部の外周面のうち該平面と周方向に関して略同じ位置にある外周面部、及び該把持部の基端面の少なくとも１つには、前記歯科用治療器具に関する情報を表現するコードが付されている。 The dental treatment instrument disclosed here includes a rod-shaped grip portion and a working portion provided on the tip end side of the grip portion. A plane is formed at the base end of the grip portion in which a part of the outer peripheral surface in the circumferential direction is cut out, and the plane of the grip portion and the outer peripheral surface of the grip portion in the circumferential direction. A code for expressing information about the dental treatment instrument is attached to at least one of the outer peripheral surface portion and the proximal end surface portion of the grip portion at substantially the same position.
　前記の構成によれば、把持部の基端部における外周面の周方向の一部が切り欠かれて形成された平面、把持部の外周面のうち該平面と周方向に関して略同じ位置にある外周面部、及び把持部の基端面の少なくとも１つには、歯科用治療器具に関する情報を表現するコードが付されている。つまり、コードは、把持部のうち、目又は読み取り機等で比較的確認し易い部分に付されているため、コードを容易に読み取ることができる。したがって、歯科用治療器具に関する情報を誤認識したり認識できなかったりすることを抑制できる。 According to the above configuration, a plane formed by cutting out a part of the outer peripheral surface of the base end portion of the grip portion in the circumferential direction, and the outer peripheral surface of the grip portion are at substantially the same position with respect to the plane and the circumferential direction. A code for expressing information about the dental treatment instrument is attached to at least one of the outer peripheral surface portion and the proximal end surface of the grip portion. That is, since the code is attached to a portion of the grip portion that is relatively easy to check with the eyes or a reader, the code can be easily read. Therefore, it is possible to prevent the information about the dental treatment instrument from being erroneously recognized or not recognized.
　前記コードは、前記平面及び前記外周面部の少なくとも一方と、前記基端面とに付されている、こととしてもよい。 The cord may be attached to at least one of the plane surface and the outer peripheral surface portion, and the base end surface portion.
　前記の構成によれば、コードは、前記平面及び前記外周面部の少なくとも一方と、前記基端面とに付されているため、前記平面を、目又は読み取り機等で確認し易い向きに向けることにより、前記平面及び前記外周面部の少なくとも一方に付されたコードをより一層容易に読み取ることができる。したがって、歯科用治療器具に関する情報を誤認識したり認識できなかったりすることをより一層抑制できる。 According to the above configuration, since the cord is attached to at least one of the flat surface and the outer peripheral surface portion and the base end surface, the flat surface is oriented so as to be easily confirmed by an eye or a reader or the like. , The cord attached to at least one of the flat surface and the outer peripheral surface portion can be read more easily. Therefore, it is possible to further suppress the misrecognition or inability to recognize the information regarding the dental treatment instrument.
　以上説明したように、本開示によると、歯科用治療器具に関する情報を誤認識したり認識できなかったりすることを抑制できる。 As explained above, according to the present disclosure, it is possible to suppress misrecognition or inability to recognize information on dental treatment instruments.
本開示の歯科用治療器具の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of the dental treatment instrument of this disclosure. 図１の第１変形例を示す斜視図である。It is a perspective view which shows the 1st modification of FIG. 図１の第２変形例を示す斜視図である。It is a perspective view which shows the 2nd modification of FIG. 包装状態の歯科用治療器具を模式的に示す断面図である。It is sectional drawing which shows typically the dental treatment instrument in a packaged state. 図４の変形例を模式的に示す断面図である。It is sectional drawing which shows typically the modification of FIG. 歯科用治療器具の破断予知システムの全体構成を示す概略図である。It is the schematic which shows the whole structure of the breakage prediction system of a dental treatment instrument. 歯科用治療器具のコードを読み取る読み取り装置の内部構造を模式的に示す断面図である。It is sectional drawing which shows typically the internal structure of the reading device which reads the code of a dental treatment instrument. 図７の変形例を模式的に示す断面図である。It is sectional drawing which shows typically the modification of FIG. 7.
　以下、本開示の実施形態を図面に基づいて詳細に説明する。以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものでは全くない。 Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses.
　（歯科用治療器具）
　図１は、本開示の実施形態に係る歯科用治療器具Ａを示す。歯科用治療器具Ａは、歯科治療において、例えば、歯の根管を治療する際に用いられるエンジンリーマ、ファイル（Ｋファイル，Ｈファイル，Ｏファイル，フレアファイル等）、ピーソリーマ、ゲーツドリル等である。 (Dental treatment equipment)
FIG. 1 shows a dental treatment instrument A according to an embodiment of the present disclosure. The dental treatment instrument A is, for example, an engine reamer, a file (K file, H file, O file, flare file, etc.), a pea reamer, a gates drill, etc. used when treating the root canal of a tooth in dental treatment.
　歯科用治療器具Ａは、棒状の把持部１と、この把持部１の先端側（軸方向一端側）に設けられた作業部１２と、この作業部１２に連続して設けられたシャフト部１５とを備える。 The dental treatment instrument A includes a rod-shaped grip portion 1, a work portion 12 provided on the tip end side (one end side in the axial direction) of the grip portion 1, and a shaft portion 15 continuously provided on the work portion 12. And.
　作業部１２及びシャフト部１５は、超弾性合金で目的の治療器具の形状に形成されると共に記憶熱処理がなされ、常温領域で超弾性能を発揮するように構成される。これにより、作業部１２及びシャフト部１５は、柔軟性に富み、且つ高い復元性を有し、根管治療に際して個人差の大きい根管形状の変化に対し高い適応性を有している。超弾性合金としては、ニッケル（Ｎｉ）－チタン（Ｔｉ）を含む形状記憶合金が好ましい。なお、作業部１２及びシャフト部１５は、錆に強いステンレス鋼（例えば、マルテンサイト系のステンレス鋼やオーステナイト系のステンレス鋼等）等で構成されていてもよい。 The working portion 12 and the shaft portion 15 are formed of a superelastic alloy in the shape of a target treatment instrument and are subjected to memory heat treatment so as to exhibit superelastic performance in a normal temperature range. As a result, the working portion 12 and the shaft portion 15 are highly flexible and have high resilience, and have high adaptability to changes in root canal shape that vary greatly among individuals during root canal treatment. As the superelastic alloy, a shape memory alloy containing nickel (Ni) -titanium (Ti) is preferable. The working portion 12 and the shaft portion 15 may be made of rust-resistant stainless steel (for example, martensitic stainless steel, austenitic stainless steel, etc.).
　作業部１２は、実際に、歯の根管等の患部を治療する部位であり、治療目的に対応した切刃やエッジ等を有する。より具体的には、作業部１２は、先端に行くに従って略円錐状に直径が次第に減少するテーパー状に形成され、スパイラル状の溝１３及びこの溝１３に沿った切刃１４により構成される。なお、切刃１４は、スパイラル状の他、直針状等に形成されていてもよい。また、作業部１２のテーパー形状は、ＩＳＯにより規定され、例えば、ＫファイルやＨファイル等では２／１００に設定されている。 The working part 12 is a part that actually treats an affected part such as a root canal of a tooth, and has a cutting edge, an edge, or the like corresponding to the purpose of treatment. More specifically, the working portion 12 is formed in a tapered shape whose diameter gradually decreases in a substantially conical shape toward the tip, and is composed of a spiral groove 13 and a cutting edge 14 along the groove 13. The cutting edge 14 may be formed in a spiral shape, a straight needle shape, or the like. Further, the taper shape of the working unit 12 is defined by ISO, and is set to 2/100 for, for example, a K file or an H file.
　シャフト部１５は、作業部１２の基端に連続して軸状に形成されている。このシャフト部１５は、その軸方向基端部（把持部１側の端部）が把持部１に接続される。 The shaft portion 15 is continuously formed in a shaft shape at the base end of the working portion 12. The axial base end portion (end portion on the grip portion 1 side) of the shaft portion 15 is connected to the grip portion 1.
　把持部１は、歯科医師等の作業者が把持して操作するもの、又はハンドピース（回転工具）のチャックに把持されて作業部１２に回転が付与されるものである。把持部１は、合成樹脂やステンレス鋼等の金属で形成されている。把持部１は、丸棒状に形成されている。なお、把持部１は、丸棒状以外の形状（例えば、角棒状）に形成されてもよい。 The grip portion 1 is one that is gripped and operated by a worker such as a dentist, or one that is gripped by a chuck of a handpiece (rotating tool) to give rotation to the working portion 12. The grip portion 1 is made of a metal such as synthetic resin or stainless steel. The grip portion 1 is formed in the shape of a round bar. The grip portion 1 may be formed in a shape other than the round bar shape (for example, a square bar shape).
　把持部１の先端面２には、シャフト部１５の基端部が挿入される円状の接続穴（不図示）が形成されている。この接続穴にシャフト部１５の基端部が挿入され、嫌気性接着剤等の接着剤で接着する等により、シャフト部１５を介して、把持部１と作業部１２とが接続されて一体となった歯科用治療器具Ａが構成される。 The tip surface 2 of the grip portion 1 is formed with a circular connection hole (not shown) into which the base end portion of the shaft portion 15 is inserted. The base end portion of the shaft portion 15 is inserted into this connection hole, and the grip portion 1 and the working portion 12 are connected and integrated with each other via the shaft portion 15 by adhering with an adhesive such as an anaerobic adhesive. The dental treatment instrument A that has become is configured.
　把持部１の基端部（軸方向他端部）には、その外周面の周方向の一部が切り欠かれてＤカット平面３及び平面５が形成されている。Ｄカット平面３は、把持部１の基端面４から把持部１の軸方向に沿って作業部１２側に延びる面である。基端面４は、軸方向視で略Ｄ字状をなしている。平面５は、Ｄカット平面３における、基端面４とは反対側の端に連続してＤカット平面３に直交する略Ｄ字状の面である。 A D-cut plane 3 and a flat surface 5 are formed at the base end portion (the other end portion in the axial direction) of the grip portion 1 by cutting out a part of the outer peripheral surface in the circumferential direction. The D-cut plane 3 is a surface extending from the base end surface 4 of the grip portion 1 to the work portion 12 side along the axial direction of the grip portion 1. The base end surface 4 has a substantially D shape in the axial direction. The plane 5 is a substantially D-shaped plane on the D-cut plane 3 that is continuous with the end opposite to the base end plane 4 and orthogonal to the D-cut plane 3.
　なお、把持部１のＤカット平面３が形成された部分は、ハンドピース等の内部（不図示）に係止されて、その内部での把持部１の回転（作業部１２の空転）を抑制すると共に、作業部１２の回転時にハンドピースから把持部１が脱落するのを防止するものである。 The portion of the grip portion 1 on which the D-cut flat surface 3 is formed is locked to the inside of the handpiece or the like (not shown) to suppress the rotation of the grip portion 1 (idle of the work portion 12) inside the grip portion 1. At the same time, the grip portion 1 is prevented from falling off from the handpiece when the working portion 12 is rotated.
　把持部１の基端部には、Ｄカット平面３の軸方向中間部に対応する部分に、他の部分よりも縮径した縮径部６と、縮径部６の軸方向両端にそれぞれ連続してＤカット平面３に直交し、互いに軸方向に対向する第１対向面７及び第２対向面８が形成されている。これにより、Ｄカット平面３は、径方向視で略Ｈ字状をなしている。 At the base end portion of the grip portion 1, a diameter-reduced portion 6 having a diameter smaller than that of the other portions and a diameter-reduced portion 6 corresponding to the axial intermediate portion of the D-cut plane 3 are continuous at both ends in the axial direction. A first facing surface 7 and a second facing surface 8 that are orthogonal to the D-cut plane 3 and face each other in the axial direction are formed. As a result, the D-cut plane 3 has a substantially H shape in the radial direction.
　以下の説明では、把持部１におけるＤカット平面３よりも先端側の部分の外周面のうち、Ｄカット平面３と周方向に関して略同じ位置にある部分を外周面部９という。なお、本明細書において、把持部１の外周面とは、把持部１をその軸方向から見て、全て同じ外径の外面のみならず、他の部分の外径よりも縮径又は拡径した部分の外面を含む面をいう。また、本明細書において、把持部１の基端面とは、把持部１の最も端に位置する端面のみならず、その面に形成された溝の底面を含む面をいう。 In the following description, of the outer peripheral surface of the portion of the grip portion 1 on the tip side of the D-cut plane 3, the portion that is substantially the same position as the D-cut plane 3 in the circumferential direction is referred to as the outer peripheral surface portion 9. In the present specification, the outer peripheral surface of the grip portion 1 is not only the outer surface having the same outer diameter when the grip portion 1 is viewed from its axial direction, but also the outer diameter of the grip portion 1 is reduced or expanded compared to the outer diameter of other parts. Refers to the surface including the outer surface of the removed part. Further, in the present specification, the base end surface of the grip portion 1 refers not only to the end surface located at the most end of the grip portion 1, but also to the surface including the bottom surface of the groove formed on the surface.
　把持部１のＤカット平面３、外周面部９及び基端面４に、歯科用治療器具Ａに関する情報を表現するコード１０がそれぞれ印字されている。コード１０は、Ｄカット平面３に印字されたコード１０ａ、外周面部９に印字されたコード１０ｂ及び基端面４に印字された１０ｃを含む。 A code 10 expressing information regarding the dental treatment instrument A is printed on the D-cut flat surface 3, the outer peripheral surface portion 9, and the proximal end surface 4 of the grip portion 1, respectively. The code 10 includes a code 10a printed on the D-cut flat surface 3, a code 10b printed on the outer peripheral surface portion 9, and a code 10c printed on the base end surface 4.
　歯科用治療器具Ａに関する情報は、例えば、個体識別情報である。個体識別情報としては、製品の品番、製品サイズ（具体的には、ＩＳＯ規格で規格された作業部１２のサイズ）、それに対応する規格色、製造番号、製造年月日等が挙げられる。なお、本開示によれば、個体識別情報には、ロット毎等に付される情報（ＵＤＩ（Unique Device Identification、機器識別情報）と呼ばれる医療機器等に使用される識別子等）のみではなく、１本毎に付される情報（１本毎に異なる、個体識別番号等の固有の情報）が含まれる。これにより、使用する歯科用治療器具Ａの累積回転数や累積負荷等の固有の情報を個別に管理できるため、適切に歯科用治療器具Ａの破断予知ができる。 The information about the dental treatment instrument A is, for example, individual identification information. Examples of the individual identification information include the product number, the product size (specifically, the size of the working unit 12 standardized by the ISO standard), the corresponding standard color, the serial number, the date of manufacture, and the like. According to the present disclosure, the individual identification information includes not only information attached to each lot or the like (identifiers used for medical devices or the like called UDI (Unique Device Identification, device identification information)), but also 1 Information attached to each book (unique information such as an individual identification number, which is different for each book) is included. As a result, unique information such as the cumulative rotation speed and the cumulative load of the dental treatment instrument A to be used can be individually managed, so that the breakage of the dental treatment instrument A can be appropriately predicted.
　コード１０は、ＱＲコード（登録商標）等の読み取り機により読み取りが可能な二次元コードや、円、半円、四角、星型、又はこれらの組み合わせ等の形状からなるマーク等の目又は読み取り機により読み取りが可能なコード等が挙げられる。これらの中では、歯科用治療器具Ａに関する情報の誤認識を抑制する観点から、読み取り機により読み取りが可能な二次元コードが好ましい。なお、読み取り機は、一般に市販されている二次元コードリーダー等の読み取り機を使用できる。 The code 10 is a two-dimensional code that can be read by a reader such as a QR code (registered trademark), or an eye or reader such as a mark having a shape such as a circle, a semicircle, a square, a star, or a combination thereof. A code that can be read by Among these, a two-dimensional code that can be read by a reader is preferable from the viewpoint of suppressing erroneous recognition of information regarding the dental treatment instrument A. As the reader, a reader such as a two-dimensional code reader that is generally commercially available can be used.
　コード１０を歯科用治療器具Ａの所定の位置に印字する方法は、特に限定されず、一般に使用される方法を用いることができる。 The method of printing the code 10 at a predetermined position of the dental treatment instrument A is not particularly limited, and a generally used method can be used.
　コード１０ａは、把持部１におけるＤカット平面３の先端部の軸直方向中間部上に表示されている。コード１０ａは、把持部１の外周面ではなく、外周面の周方向の一部が切り欠かれて形成されたＤカット平面３に印字されているため、摩耗し難い。コード１０ａの表示位置は、Ｄカット平面３上であれば良く、特に限定されないが、コード１０ａの読み取りをより一層容易にする観点から、Ｄカット平面３の軸直方向中間部が好ましい。 The code 10a is displayed on the intermediate portion in the axial direction of the tip portion of the D-cut plane 3 in the grip portion 1. The code 10a is not easily worn because it is printed not on the outer peripheral surface of the grip portion 1 but on the D-cut flat surface 3 formed by cutting out a part of the outer peripheral surface in the circumferential direction. The display position of the code 10a may be on the D-cut plane 3 and is not particularly limited, but from the viewpoint of further facilitating the reading of the code 10a, the intermediate portion in the axial direction of the D-cut plane 3 is preferable.
　コード１０ｂは、把持部１における外周面部９の基端寄りの周方向中間部上に表示されている。即ち、コード１０ｂは、Ｄカット平面３に対して垂直方向から見たときに、Ｄカット平面３の軸直方向に関してコード１０ａと略同じ位置に表示されている。コード１０ｂは、Ｄカット平面３を利用して、Ｄカット平面３を目又は読み取り機等で確認し易い向きに向けることにより、コード１０ｂの周方向の位置決めがし易い。これにより、コード１０ａの有無に関わらず、コード１０ｂの読み取りが容易になる。コード１０ｂの表示位置は、外周面部９上であれば特に限定されず、例えば、先端寄りであってもよい。 The code 10b is displayed on the peripheral intermediate portion of the grip portion 1 near the base end of the outer peripheral surface portion 9. That is, the code 10b is displayed at substantially the same position as the code 10a with respect to the axial direction of the D-cut plane 3 when viewed from the direction perpendicular to the D-cut plane 3. The cord 10b can be easily positioned in the circumferential direction of the cord 10b by using the D-cut plane 3 and directing the D-cut plane 3 in a direction that can be easily confirmed by an eye or a reader or the like. This facilitates reading of the code 10b with or without the code 10a. The display position of the code 10b is not particularly limited as long as it is on the outer peripheral surface portion 9, and may be, for example, closer to the tip.
　なお、図２に示すように、コード１０ｂは、把持部１の軸方向に延びる長方形に設けられていてもよい。この場合、外周面部９のスペースを効率的に使用できると共に、コード１０ｂの読み取り品質や量産性が高まる。 Note that, as shown in FIG. 2, the cord 10b may be provided in a rectangular shape extending in the axial direction of the grip portion 1. In this case, the space of the outer peripheral surface portion 9 can be efficiently used, and the reading quality and mass productivity of the code 10b are improved.
　また、図３に示すように、コード１０ｂは、把持部１の外周面の一部に設けられた該外周面の外径よりも縮径した縮径部上に表示されていてもよい。より具体的には、コード１０ｂは、縮径部の外周面のうち、外周面部９と略同じ位置（Ｄカット平面３と周方向に関して略同じ位置）にある部分（以下「縮径面部１１」という）に表示されている。縮径面部１１は、外周面部９の一部が僅かに削り取られて形成された溝の底面（凹面）である。この場合、コード１０ｂは、把持部１の外周面（外周面部９）に対して凹んだ縮径面部１１に印字されているため、摩耗し難い。これにより、コード１０ｂが摩耗して認識できなかったりすることを抑制できる。なお、図３に示すように、縮径部は、その外周面全体（全周）に亘って設けられているが、外周面のうち、縮径面部１１のみに設けられていてもよい。縮径面部１１（縮径部）の幅（軸方向長さ）は、特に限定されず、コード１０ｂの形状、大きさ等に応じて適宜決定すればよい。縮径面部１１の深さ（前記溝の深さ）は、例えば０．０１ｍｍ以上であればよく、好ましくは０．０５ｍｍ程度である。 Further, as shown in FIG. 3, the code 10b may be displayed on a reduced diameter portion provided on a part of the outer peripheral surface of the grip portion 1 and having a diameter smaller than the outer diameter of the outer peripheral surface. More specifically, the cord 10b is a portion of the outer peripheral surface of the reduced diameter portion at a position substantially the same as the outer peripheral surface portion 9 (a position substantially the same as the D-cut plane 3 in the circumferential direction) (hereinafter, “diameter reduced surface portion 11””. It is displayed in). The reduced diameter surface portion 11 is a bottom surface (concave surface) of a groove formed by slightly scraping a part of the outer peripheral surface portion 9. In this case, since the code 10b is printed on the reduced diameter surface portion 11 recessed with respect to the outer peripheral surface (outer peripheral surface portion 9) of the grip portion 1, it is difficult to wear. As a result, it is possible to prevent the cord 10b from being worn and unrecognizable. As shown in FIG. 3, the reduced diameter portion is provided over the entire outer peripheral surface (entire circumference) thereof, but may be provided only on the reduced diameter surface portion 11 of the outer peripheral surface. The width (axial length) of the reduced diameter surface portion 11 (reduced diameter portion) is not particularly limited, and may be appropriately determined according to the shape, size, and the like of the cord 10b. The depth of the reduced diameter surface portion 11 (the depth of the groove) may be, for example, 0.01 mm or more, preferably about 0.05 mm.
　コード１０ｃは、把持部１における基端面４の中央部上に表示されている。コード１０ｃは、コード１０ａ，１０ｂの読み取りが比較的困難な場合であっても、Ｄカット平面３と直交する面に印字されているため、コード１０ｃの読み取りが容易である。また、コード１０ｃは、コード１０ａ，１０ｂと併用することでコード読み取りのダブルチェックとしても使用できる。即ち、コード１０の読み取りがより一層正確になる。 The code 10c is displayed on the central portion of the base end surface 4 of the grip portion 1. Even when the codes 10a and 10b are relatively difficult to read, the code 10c is printed on a plane orthogonal to the D-cut plane 3, so that the code 10c can be easily read. The code 10c can also be used as a double check for code reading when used in combination with the codes 10a and 10b. That is, the reading of the code 10 becomes even more accurate.
　また、図３に示すように、コード１０ｃは、基端面４の中央部が僅かに削り取られて形成された溝の底面（以下「基端凹面１６」という）上に表示されていてもよい。基端凹面１６は、Ｄカット平面３に直交する平面である。この場合、コード１０ｃは、基端面４に対して凹んだ基端凹面１６に印字されているため、摩耗し難い。これにより、コード１０ｃが摩耗して認識できなかったりすることを抑制できる。なお、基端凹面１６の大きさは、特に限定されず、コード１０ｃの形状、大きさ等に応じて適宜決定すればよい。基端凹面１６の深さは、例えば０．０１ｍｍ以上であればよく、好ましくは０．０５ｍｍ程度である。 Further, as shown in FIG. 3, the cord 10c may be displayed on the bottom surface of the groove (hereinafter referred to as "base end concave surface 16") formed by slightly scraping the central portion of the base end surface 4. The base end concave surface 16 is a plane orthogonal to the D-cut plane 3. In this case, since the code 10c is printed on the base end concave surface 16 which is recessed with respect to the base end surface 4, it is difficult to wear. As a result, it is possible to prevent the cord 10c from being worn and unrecognizable. The size of the base end concave surface 16 is not particularly limited, and may be appropriately determined according to the shape, size, and the like of the cord 10c. The depth of the base end concave surface 16 may be, for example, 0.01 mm or more, preferably about 0.05 mm.
　前記の如く構成された歯科用治療器具Ａは、把持部１が把持されたハンドピースを用い、作業者が作業部１２を治療すべき歯の根管内に挿入し、切刃１４の方向に回転させつつ軸方向に移動させることで、根管の内壁面を切削して該根管を成形できる。 In the dental treatment instrument A configured as described above, the operator inserts the working portion 12 into the root canal of the tooth to be treated by using the handpiece in which the grip portion 1 is gripped, and in the direction of the cutting edge 14. By moving in the axial direction while rotating, the inner wall surface of the root canal can be cut to form the root canal.
　（歯科用治療器具のコードの読み取り方法）
　以下に、歯科用治療器具Ａのコード１０の読み取り方法を説明する。 (How to read the code of dental treatment equipment)
The method of reading the code 10 of the dental treatment instrument A will be described below.
　＜包装状態の歯科用治療器具のコードの読み取り＞
　図４及び図５に示すように、歯科用治療器具Ａは、包装具としてのブリスターパック２２，２４で包装される。このブリスターパック２２，２４は、透明樹脂材料からなるブリスター部材２０，２３と、このブリスター部材２０，２３を密閉する密閉部材２１とからなる。ブリスター部材２０，２３は、歯科用治療器具Ａの外形に対応するように略円筒状に形成され、ブリスター部材２０，２３内での歯科用治療器具Ａの軸方向移動が抑制される長さに調整されている。 <Reading the code of the dental treatment instrument in the packaged state>
As shown in FIGS. 4 and 5, the dental treatment instrument A is packaged in blister packs 22 and 24 as packaging tools. The blister packs 22 and 24 are composed of blister members 20 and 23 made of a transparent resin material and a sealing member 21 for sealing the blister members 20 and 23. The blister members 20 and 23 are formed in a substantially cylindrical shape so as to correspond to the outer shape of the dental treatment instrument A, and have a length that suppresses the axial movement of the dental treatment instrument A in the blister members 20 and 23. It has been adjusted.
　歯科用治療器具Ａは、前記したように、把持部１にＤカット平面３を有する。そこで、図４に示すブリスターパック２２では、ブリスター部材２０をＤカット平面３に沿うように形成されている。これにより、ブリスターパック２２内での歯科用治療器具Ａの軸周りの回転が抑制される。 As described above, the dental treatment instrument A has a D-cut flat surface 3 on the grip portion 1. Therefore, in the blister pack 22 shown in FIG. 4, the blister member 20 is formed along the D-cut plane 3. As a result, the rotation of the dental treatment instrument A around the axis in the blister pack 22 is suppressed.
　また、図５に示すブリスターパック２４では、ブリスター部材２３における把持部１の基端面４に対向する部分に、密閉部材２１に行くに従って把持部１とは反対側（図５では下側）に傾斜する平面部２５が設けられている。これにより、把持部１の基端面４を構成する弦４ａが平面部２５に当接して、ブリスターパック２４内での歯科用治療器具Ａの軸周りの回転が抑制される。 Further, in the blister pack 24 shown in FIG. 5, the portion of the blister member 23 facing the base end surface 4 of the grip portion 1 is inclined to the side opposite to the grip portion 1 (lower side in FIG. 5) toward the sealing member 21. A flat surface portion 25 is provided. As a result, the strings 4a forming the base end surface 4 of the grip portion 1 come into contact with the flat surface portion 25, and the rotation of the dental treatment instrument A in the blister pack 24 around the axis is suppressed.
　このように、歯科用治療器具Ａが包装されるブリスターパック２２，２４のブリスター部材２０，２３の形状を歯科用治療器具Ａの把持部１（特にＤカット平面３）の形状等に応じて工夫することで、歯科用治療器具Ａの軸周りの回転が抑制される。その結果、歯科用治療器具Ａは、ブリスターパック２２，２４に包装された状態において、Ｄカット平面３及び外周面部９が密閉部材２１とは反対側に向くため、ブリスター部材２０，２３を介してＤカット平面３及び外周面部９に印字されたコード１０ａ，１０ｂを読み取り機（不図示）で容易に読み取ることができる。これにより、歯科用治療器具Ａは、包装具に包装された状態であっても、歯科用治療器具Ａに関する情報が確認し易く、製品管理が容易になる。 In this way, the shapes of the blister members 20 and 23 of the blister packs 22 and 24 in which the dental treatment instrument A is packaged are devised according to the shape of the grip portion 1 (particularly the D-cut flat surface 3) of the dental treatment instrument A. By doing so, the rotation of the dental treatment instrument A around the axis is suppressed. As a result, in the dental treatment instrument A, in the state of being packaged in the blister packs 22 and 24, the D-cut plane 3 and the outer peripheral surface portion 9 face the opposite side to the sealing member 21, so that the dental treatment instrument A passes through the blister members 20 and 23. The codes 10a and 10b printed on the D-cut flat surface 3 and the outer peripheral surface portion 9 can be easily read by a reader (not shown). As a result, even when the dental treatment instrument A is packaged in the packaging tool, it is easy to confirm the information about the dental treatment instrument A, and the product management becomes easy.
　さらに、歯科用治療器具Ａは、把持部１の基端面４にコード１０ｃが印字されているため、歯科用治療器具Ａの回転の有無に関わらず、コード１０ｃを容易に読み取ることができる。 Further, since the code 10c is printed on the base end surface 4 of the grip portion 1 of the dental treatment instrument A, the code 10c can be easily read regardless of the presence or absence of rotation of the dental treatment instrument A.
　なお、歯科用治療器具Ａの包装具は、ブリスターパック２２，２４に限定されず、例えば、透明樹脂材料からなるハードケース等であってもよい。 The packaging tool for the dental treatment instrument A is not limited to the blister packs 22 and 24, and may be, for example, a hard case made of a transparent resin material.
　＜使用後の歯科用治療器具のコードの読み取り（破断予知システム）＞
　（破断予知システム）
　歯科用治療器具Ａは、使用後に滅菌処理を施して、再使用されることがある。この場合、図６に示す破断予知システムＳ等を用いて、歯科用治療器具Ａの破断を予知することにより、研削時における歯科用治療器具Ａの破断を抑制する。この破断予知システムＳでは、歯科用治療器具Ａの個体識別情報を器具Ａの破断予知に利用する。 <Reading the code of the dental treatment instrument after use (breakage prediction system)>
(Break prediction system)
The dental treatment instrument A may be sterilized after use and reused. In this case, the fracture prediction system S and the like shown in FIG. 6 are used to predict the fracture of the dental treatment instrument A, thereby suppressing the fracture of the dental treatment instrument A during grinding. In this fracture prediction system S, the individual identification information of the dental treatment instrument A is used for the fracture prediction of the instrument A.
　破断予知システムＳは、歯科用治療器具Ａのコード１０を読み取る直方体状の読み取り装置３０と、歯科用治療器具Ａが把持されるハンドピース４０と、これら読み取り装置３０及びハンドピース４０とインターネットを介して歯科用治療器具Ａの個体識別情報（データ）を送受信し、そのデータを管理し、破断予知の結果等を表示する電子機器５０と、から構成される。 The breakage prediction system S is a rectangular reading device 30 that reads the code 10 of the dental treatment instrument A, a handpiece 40 that holds the dental treatment instrument A, and these reading devices 30 and the handpiece 40 via the Internet. It is composed of an electronic device 50 that transmits and receives individual identification information (data) of the dental treatment instrument A, manages the data, and displays the result of breakage prediction and the like.
　読み取り装置３０は、その内部に歯科用治療器具Ａの把持部１が挿入されて、把持部１に印字されたコード１０を読み取り、この読み取ったコード１０から得られた歯科用治療器具Ａの個体識別情報を電子機器５０に送信する。 The reading device 30 has a grip portion 1 of the dental treatment instrument A inserted therein, reads a code 10 printed on the grip portion 1, and is an individual of the dental treatment instrument A obtained from the read code 10. The identification information is transmitted to the electronic device 50.
　ハンドピース４０は、使用した歯科用治療器具Ａの累積負荷、累積回転回数等の累積情報を記録し、歯科用治療器具Ａの１回の使用が終了したときに、又は電子機器５０からの信号を受信したときに、その累積情報を電子機器５０に送信する。 The handpiece 40 records cumulative information such as the cumulative load and the cumulative number of rotations of the dental treatment instrument A used, and when the one-time use of the dental treatment instrument A is completed or a signal from the electronic device 50. Is received, the cumulative information is transmitted to the electronic device 50.
　電子機器５０は、特に限定されず、携帯電話、タブレット端末、パソコン等が利用できる。電子機器５０は、読み取り装置３０から歯科用治療器具Ａの個体識別情報を受信したときに、電子機器５０に予め記録された、その個体識別情報と紐付けられている耐累積負荷や耐累積回転数等の製造メーカーから提供される推奨耐久性情報と、ハンドピース４０から受信して電子機器５０に記録された累積情報のうち最新情報とを読み出す。続いて、電子機器５０は、それら推奨耐久性情報及び最新累積情報を比較し、現在の歯科用治療器具Ａの疲労蓄積状況を、人の顔を模したマーク等で表示する。このとき、疲労破断のリスクが高まった歯科用治療器具Ａに関しては、警告音を鳴らしたり、ハンドピース４０の動作を止める等の処理が行われるようにしてもよい。 The electronic device 50 is not particularly limited, and a mobile phone, a tablet terminal, a personal computer, or the like can be used. When the electronic device 50 receives the individual identification information of the dental treatment instrument A from the reading device 30, the electronic device 50 has a cumulative load resistance and a cumulative rotation speed resistance recorded in advance in the electronic device 50 and associated with the individual identification information. The recommended durability information provided by the manufacturer such as the number and the latest information among the cumulative information received from the handpiece 40 and recorded in the electronic device 50 are read out. Subsequently, the electronic device 50 compares the recommended durability information and the latest cumulative information, and displays the current fatigue accumulation status of the dental treatment instrument A with a mark imitating a human face or the like. At this time, with respect to the dental treatment instrument A having an increased risk of fatigue fracture, processing such as sounding a warning sound or stopping the operation of the handpiece 40 may be performed.
　図７及び図８に示すように、読み取り装置３０の上面には、歯科用治療器具Ａの把持部１のうちコード１０が印字された部分が収容される円状の収容孔３１が形成されている。 As shown in FIGS. 7 and 8, a circular accommodating hole 31 is formed on the upper surface of the reading device 30 to accommodate the portion of the grip portion 1 of the dental treatment instrument A on which the code 10 is printed. There is.
　図７に示すように、読み取り装置３０の収容孔３１の一側（図７では右側）には、読み取り機３３が設けられている。収容孔３１の底面には、収容孔３１の他側（読み取り機３３とは反対側。図７では左側）に行くに従って下側に傾斜する平面部３２が設けられている。 As shown in FIG. 7, a reader 33 is provided on one side (right side in FIG. 7) of the accommodating hole 31 of the reading device 30. On the bottom surface of the accommodating hole 31, a flat surface portion 32 that inclines downward toward the other side of the accommodating hole 31 (the side opposite to the reader 33; the left side in FIG. 7) is provided.
　そして、収容孔３１に把持部１が挿入されると、読み取り装置３０に微振動ｖを発生させることにより、把持部１をその軸周りに回転させて、把持部１の基端面４を構成する弦４ａを平面部３２に当接させる。これにより、収容孔３１内の把持部１は、Ｄカット平面３（コード１０ａ）及び外周面部９（コード１０ｂ）が読み取り機３３に対向するように位置決め固定されるため、コード１０ａ，１０ｂを容易に読み取ることができる。 Then, when the grip portion 1 is inserted into the accommodating hole 31, the reading device 30 generates a slight vibration v to rotate the grip portion 1 around its axis to form the base end surface 4 of the grip portion 1. The string 4a is brought into contact with the flat surface portion 32. As a result, the grip portion 1 in the accommodating hole 31 is positioned and fixed so that the D-cut flat surface 3 (code 10a) and the outer peripheral surface portion 9 (code 10b) face the reader 33, so that the codes 10a and 10b can be easily operated. Can be read by.
　なお、図７に示す読み取り装置３０では、把持部１の基端面４に印字されたコード１０ｃを読み取るために、コード１０ｃに対向する位置に読み取り機（不図示）を設けてもよい。 In the reading device 30 shown in FIG. 7, a reader (not shown) may be provided at a position facing the code 10c in order to read the code 10c printed on the base end surface 4 of the grip portion 1.
　また、図８に示す読み取り装置３０では、収容孔３１は、上下方向に貫通している。収容孔３１の内周面には、その上下方向中間部から下端までに亘ってＤカット平面３に沿うように径方向内側に突出する略Ｄ字状の突出部３５が設けられている。そして、収容孔３１に把持部１が挿入されると、平面５が突出部３５に当接する。これにより、把持部１の軸周りの回転が抑制され、収容孔３１内の把持部１が位置決め固定される。 Further, in the reading device 30 shown in FIG. 8, the accommodating hole 31 penetrates in the vertical direction. The inner peripheral surface of the accommodating hole 31 is provided with a substantially D-shaped projecting portion 35 that projects inward in the radial direction along the D-cut plane 3 from the intermediate portion in the vertical direction to the lower end. Then, when the grip portion 1 is inserted into the accommodating hole 31, the flat surface 5 comes into contact with the protruding portion 35. As a result, the rotation of the grip portion 1 around the axis is suppressed, and the grip portion 1 in the accommodating hole 31 is positioned and fixed.
　収容孔３１の下部には、収容孔３１に挿入された把持部１の基端面４よりも下側に、この基端面４に印字されたコード１０ｃを拡大するレンズ３４が、収容孔３１を塞ぐように設けられている。これにより、レンズ３４を通ることでコード１０ｃが拡大され、読み取り機（不図示）で読み取られる画像も拡大画像３７になるため、コード１０ｃの読み取りが容易且つ正確になる。 At the lower part of the accommodating hole 31, a lens 34 that enlarges the code 10c printed on the proximal end surface 4 closes the accommodating hole 31 below the proximal end surface 4 of the grip portion 1 inserted into the accommodating hole 31. It is provided as follows. As a result, the code 10c is enlarged by passing through the lens 34, and the image read by the reader (not shown) also becomes the enlarged image 37, so that the code 10c can be read easily and accurately.
　なお、収容孔３１の内周面に、突出部３５の代わりに、把持部１の収容孔３１への挿入時に第１対向面７に当接する当接部材（不図示）を設けることにより、把持部１の軸周りの回転を抑制して、収容孔３１内の把持部１を位置決め固定してもよい。 The inner peripheral surface of the accommodating hole 31 is gripped by providing a contact member (not shown) that comes into contact with the first facing surface 7 when the grip portion 1 is inserted into the accommodating hole 31 instead of the protruding portion 35. The grip portion 1 in the accommodating hole 31 may be positioned and fixed by suppressing the rotation of the portion 1 around the axis.
　（効果）
　以上のように構成される歯科用治療器具Ａは、把持部１において、Ｄカット平面３に印字されたコード１０ａと、外周面部９に印字されたコード１０ｂと、基端面４に印字されたコード１０ｃとを有する。これにより、Ｄカット平面３を利用して、Ｄカット平面３を目又は読み取り機等で確認し易い向きに向けることで、コード１０ａ，１０ｂを容易に読み取ることができる。また、コード１０ｃは、Ｄカット平面３と直交する面に表示されているため、Ｄカット平面３の向きに関わらず、コード１０ｃを容易に読み取ることができる。そして、歯科用治療器具Ａでは、これら３つのコード１０ａ，１０ｂ，１０ｃのうち、目又は読み取り機等で最も確認し易いコード１０を適宜選択して読み取ることができる。したがって、歯科用治療器具Ａは、歯科用治療器具Ａに関する情報を誤認識したり認識できなかったりすることを抑制できる。 (effect)
The dental treatment instrument A configured as described above has a code 10a printed on the D-cut flat surface 3, a code 10b printed on the outer peripheral surface portion 9, and a code printed on the proximal end surface 4 in the grip portion 1. It has 10c and. As a result, the codes 10a and 10b can be easily read by using the D-cut plane 3 and directing the D-cut plane 3 in a direction that can be easily confirmed by an eye or a reader or the like. Further, since the code 10c is displayed on a plane orthogonal to the D-cut plane 3, the code 10c can be easily read regardless of the orientation of the D-cut plane 3. Then, in the dental treatment instrument A, among these three codes 10a, 10b, and 10c, the code 10 that is most easily confirmed by the eyes or a reader can be appropriately selected and read. Therefore, the dental treatment instrument A can prevent the information about the dental treatment instrument A from being erroneously recognized or not recognized.
　歯科用治療器具Ａは、その包装具の形状をＤカット平面３の形状等に応じて工夫することで、Ｄカット平面３を目又は読み取り機等で確認し易い向きに向けることができる。これにより、歯科用治療器具Ａは、包装具に包装された状態であっても、歯科用治療器具Ａに関する情報を容易に読み取ることができるため、該情報を誤認識したり認識できなかったりすることを抑制できる。 By devising the shape of the packaging tool of the dental treatment instrument A according to the shape of the D-cut flat surface 3 and the like, the D-cut flat surface 3 can be oriented so that it can be easily confirmed by the eyes or a reader or the like. As a result, the dental treatment instrument A can easily read the information about the dental treatment instrument A even when it is wrapped in the packaging tool, so that the information may be erroneously recognized or not recognized. Can be suppressed.
　歯科用治療器具Ａは、読み取り機３３を備える読み取り装置３０の内部構造をＤカット平面３の形状等に応じて工夫することで、Ｄカット平面３を読み取り機３３に対向するように位置決め固定できる。これにより、歯科用治療器具Ａは、読み取り装置３０を用いて、歯科用治療器具Ａに関する情報を容易に読み取ることができるため、該情報を誤認識したり認識できなかったりすることを抑制できる。そして、この読み取り装置３０と、ハンドピース４０及び電子機器５０とを組み合わせて構成される破断予知システムＳを用いて、正しく認識された歯科用治療器具Ａに関する情報をこの器具Ａの破断予知に利用できる。その結果、使用時における歯科用治療器具Ａの破断を抑制できる。 The dental treatment instrument A can position and fix the D-cut plane 3 so as to face the reader 33 by devising the internal structure of the reader 30 provided with the reader 33 according to the shape of the D-cut plane 3 and the like. .. As a result, the dental treatment instrument A can easily read the information about the dental treatment instrument A by using the reading device 30, and thus it is possible to prevent the information from being erroneously recognized or not recognized. Then, using the fracture prediction system S configured by combining the reading device 30, the handpiece 40, and the electronic device 50, the correctly recognized information on the dental treatment instrument A is used for the fracture prediction of the instrument A. it can. As a result, it is possible to suppress the breakage of the dental treatment instrument A during use.
　（その他の実施形態）
　前記実施形態では、コード１０は印字により付されているが、コード１０を付す手段は特に限定するものではなく、刻印等によっても付すことができる。 (Other embodiments)
In the above embodiment, the code 10 is attached by printing, but the means for attaching the code 10 is not particularly limited, and the code 10 can be attached by engraving or the like.
　前記実施形態では、コード１０は、把持部１のＤカット平面３、外周面部９及び基端面４にそれぞれ印字されているが、これらの少なくとも１つに印字されていればよい。なお、コード１０は、Ｄカット平面３及び外周面部９の少なくとも一方と、基端面４とに印字されていることが好ましい。 In the above embodiment, the code 10 is printed on the D-cut plane 3, the outer peripheral surface portion 9, and the base end surface 4 of the grip portion 1, but it is sufficient that the code 10 is printed on at least one of them. It is preferable that the code 10 is printed on at least one of the D-cut flat surface 3 and the outer peripheral surface portion 9 and the base end surface 4.
　前記実施形態では、把持部１に縮径部６、第１対向面７及び第２対向面８が形成されているが、これらは形成されていなくてもよい。 In the above embodiment, the grip portion 1 is formed with a reduced diameter portion 6, a first facing surface 7, and a second facing surface 8, but these may not be formed.
　前記実施形態では、歯科用治療器具Ａの破断予知システムＳは、読み取り装置３０、ハンドピース４０及び電子機器５０から構成されているが、これに限定されず、読み取り装置３０及び電子機器５０の構成（機能）がハンドピース４０に設けられていてもよい。 In the above embodiment, the fracture prediction system S of the dental treatment instrument A is composed of a reading device 30, a handpiece 40, and an electronic device 50, but is not limited to this, and is composed of the reading device 30 and the electronic device 50. (Function) may be provided in the handpiece 40.
　前記実施形態では、歯科用治療器具Ａは根管内を切削する器具であるが、根管の入口や外側を切削したり、根管内に薬剤を塗布したり、根管内のガッタパーチャを除去したりする器具に適用することもできる。 In the above embodiment, the dental treatment instrument A is an instrument that cuts the inside of the root canal, but cuts the entrance and the outside of the root canal, applies a drug to the inside of the root canal, and removes the gutter percha in the root canal. It can also be applied to equipment that does.
　本開示は、歯の根管を治療する際に用いられる歯科用治療器具に適用できる。 The present disclosure is applicable to dental treatment instruments used when treating the root canal of a tooth.
１　　　把持部
３　　　Ｄカット平面（平面）
４　　　基端面
９　　　外周面部
１０（１０ａ，１０ｂ，１０ｃ）　　　コード
１２　　作業部 1 Grip 3 D-cut plane (plane)
4 Base end surface 9 Outer peripheral surface part 10 (10a, 10b, 10c) Cord 12 Working part

Claims (2)

  1. 　棒状の把持部と、該把持部の先端側に設けられた作業部とを備えた歯科用治療器具であって、
    　前記把持部の基端部には、外周面の周方向の一部が切り欠かれた平面が形成されており、
    　前記把持部の前記平面、該把持部の外周面のうち該平面と周方向に関して略同じ位置にある外周面部、及び該把持部の基端面の少なくとも１つには、前記歯科用治療器具に関する情報を表現するコードが付されている歯科用治療器具。     A dental treatment instrument provided with a rod-shaped grip portion and a working portion provided on the tip side of the grip portion.
    At the base end portion of the grip portion, a flat surface is formed in which a part of the outer peripheral surface in the circumferential direction is cut out.
    Information on the dental treatment instrument is provided on at least one of the flat surface of the grip portion, the outer peripheral surface portion of the outer peripheral surface of the grip portion which is substantially the same as the plane in the circumferential direction, and the proximal end surface of the grip portion. A dental treatment device with a code that expresses.
  2. 　請求項１において、
    　前記コードは、前記平面及び前記外周面部の少なくとも一方と、前記基端面とに付されている歯科用治療器具。     In claim 1,
    The cord is a dental treatment instrument attached to at least one of the flat surface, the outer peripheral surface portion, and the proximal end surface.
PCT/JP2020/031720 2019-08-26 2020-08-21 Dental treatment tool WO2021039670A1 (en)

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