WO2014077172A1 - ガイド治具 - Google Patents
ガイド治具 Download PDFInfo
- Publication number
- WO2014077172A1 WO2014077172A1 PCT/JP2013/080064 JP2013080064W WO2014077172A1 WO 2014077172 A1 WO2014077172 A1 WO 2014077172A1 JP 2013080064 W JP2013080064 W JP 2013080064W WO 2014077172 A1 WO2014077172 A1 WO 2014077172A1
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- WIPO (PCT)
- Prior art keywords
- guide
- cutting
- pole
- cutting bar
- implant
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/082—Positioning or guiding, e.g. of drills
- A61C1/084—Positioning or guiding, e.g. of drills of implanting tools
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
Definitions
- the present invention relates to a guide jig for guiding a cutting bar mounted on a handpiece when forming an implant cavity (embedding hole) in which an implant (artificial tooth root) is to be embedded.
- the position, direction, and depth of the implant fossa in the alveolar bone are important so as not to cause damage to surrounding parts or poor occlusion after attachment of an artificial crown.
- create a stent for positioning the implant fossa on the patient's dental model and start implant placement surgery, or create a stent using CT scan images of the jawbone and implant placement surgery There is known a method (see Patent Document 1). Furthermore, a method for performing an implant placement operation without using a stent is also known.
- the position of the guide hole formed in the stent may be slightly deviated from the position where the implant fossa is placed, so that sufficient effects may not be exhibited during surgery. Furthermore, it is difficult to finely adjust the depth of the implant fossa when the stent is attached. When the distance to the mandibular nerve or maxillary sinus is short, etc., a stopper is placed on the cutting bar with the stent removed. It was necessary to fine-tune the depth by wearing. For this reason, it took time and effort to adjust the depth, and there was a risk that the operation time would become longer and the burden on the patient would increase.
- the present invention has been made in view of such a point, and provides a guide jig that can appropriately form an implant cavity without forming a stent, and can further reduce the operation time at low cost. For the purpose.
- a guide jig of the present invention is a guide jig for guiding a cutting bar attached to a handpiece when forming an implant cavity at an implant placement position, and a long handle portion; A pole portion that supports the distal end side of the handle portion; and a guide portion that guides the cutting bar on the distal end side of the handle portion, wherein at least one of the pole portion and the guide portion is a distal end side of the handle portion. To protrude in the direction opposite to the cutting direction by the cutting bar.
- the cutting bar can be guided to an appropriate position and direction by moving the guide jig while confirming the occlusal relationship with the counter teeth. Further, by visually observing the pole portion or guide portion protruding from the distal end side of the handle portion, the position and direction of the implant cavity can be confirmed. At this time, unlike the case where the position and direction of the implant cavity are confirmed at the tip of the cutting bar, it is not difficult to visually check due to bleeding or the like. In this way, the implant cavity can be formed in an ideal position and direction using a guide jig while visually observing, and an upper structure (artificial dental crown) having a good occlusal relationship can be manufactured.
- the cutting depth of a cutting bar can be controlled because the protrusion part of a pole part and a guide part contact
- the pole portion protrudes in the direction opposite to the cutting direction by the cutting bar from the distal end side of the handle portion. According to this configuration, when the handpiece abuts against the pole portion that supports the handle portion on the alveolar bone, an impact from the handpiece can be stably received, and camera shake of the handle portion can be prevented.
- the pole portion has a total length corresponding to the target depth of the implant cavity. According to this configuration, when the handpiece abuts against the protruding portion of the pole portion, the implant cavity is not cut beyond the target depth, and an implant cavity having an appropriate depth can be formed.
- the pole portion is provided at the tip of the handle portion, and the guide portion is provided on the back side of the pole portion when viewed from the handle portion side. According to this configuration, the cutting bar can be appropriately guided when forming the implant cavity of the upper and lower jaw front teeth.
- the pole portion is provided at the tip of the handle portion, and the guide portion is provided side by side on the pole portion as viewed from the handle portion side. According to this configuration, the cutting bar can be appropriately guided when forming the implant cavity of the upper and lower molars.
- the cutting bar includes a chuck portion that is attached to the handpiece, and a cutting portion that extends from the chuck portion in the cutting direction, and an outer diameter of the cutting portion. Is smaller than the outer diameter of the chuck portion, and the guide portion has a guide surface smaller than the outer diameter of the chuck portion and corresponding to the outer diameter of the cutting portion. According to this configuration, only the cutting portion of the cutting bar is guided by the guide portion, and the cutting depth of the cutting bar can be regulated by the chuck portion abutting against the guide portion.
- the guide portion protrudes in a direction opposite to the cutting direction from the pole portion. According to this configuration, the cutting depth of the cutting bar can be regulated by hitting the chuck portion against the guide portion before the handpiece hits the pole portion.
- the guide jig of the present invention it is possible to guide the cutting bar to an appropriate position by moving the guide jig while confirming the occlusal relationship with the opposing teeth, so that the implant cavity can be formed appropriately. Moreover, since the cutting depth by the cutting bar is regulated, the operation time can be shortened without damaging unintended peripheral parts. Furthermore, the manufacture of stents and advanced equipment are unnecessary, and the cost can be reduced.
- FIG. 1 is a perspective view of a guide jig according to the present embodiment.
- FIG. 2 is a side view of the guide jig according to the present embodiment. 1 and 2, a guide jig for upper and lower jaw front teeth will be described as an example.
- the guide jig 1 is inserted into a patient's oral cavity to guide the cutting of the implant fossa.
- a guide portion 13 is provided.
- the handle portion 11 has a rectangular shape in cross section, and has a sufficient length so that the proximal end side can be gripped and moved in a state where the distal end side is inserted into the oral cavity.
- a pole portion 12 that supports the distal end side of the handle portion 11 on the alveolar bone 25 (see FIG. 4) is provided at the distal end of the handle portion 11.
- the pole portion 12 is formed in a columnar shape, and is fixed to the tip of the handle portion 11 in a standing posture.
- a tapered contact portion 17 that protrudes from the lower surface 15 of the handle portion 11 and has a diameter decreasing downward is formed on one end side of the pole portion 12.
- the pole portion 12 is supported to be tiltable and rotatable with the contact portion 17 as a fulcrum by the contact portion 17 being in contact with the alveolar bone 25.
- a regulating surface 18 that projects from the upper surface 16 of the handle portion 11 and regulates the amount of cutting by the cutting bar 21 (see FIG. 4) is formed.
- the regulation surface 18 regulates the lowering of the cutting bar 21 to a position deeper than the target depth by abutting against the head 23 of the handpiece 22 during cutting of the implant cavity.
- the pole portion 12 has a length corresponding to the target depth of the implant cavity. That is, the pole portion 12 is designed in consideration of the length of the cutting bar 21 protruding from the head 23 of the handpiece 22 and the target depth of the implant cavity. Thereby, for example, the implant cavity is not cut beyond the target depth, and the implant cavity having an appropriate depth is formed. Therefore, when the distance to the mandibular nerve or maxillary sinus is short, the peripheral site is not damaged. It is also possible to adjust the depth of the implant cavity by changing the length of the cutting bar 21 instead of the total length of the pole portion 12.
- the pole portion 12 is provided with a guide portion 13 for guiding the cutting bar 21 on the back side as viewed from the handle portion 11 side.
- the guide portion 13 is formed in a cylindrical tube shape, and is fixed to the outer peripheral surface of the pole portion 12 so as to be parallel to the pole portion 12.
- the guide portion 13 has substantially the same length as the vertical width of the handle portion 11 and is positioned at a position lower than the regulation surface 18 of the pole portion 12. Further, the inner diameter of the inner peripheral surface of the guide portion 13 is formed in accordance with the outer diameter of the cutting bar 21.
- the guide jig 1 configured as described above is inserted into the oral cavity of the patient and supported on the alveolar bone 25 by the pole portion 12. Then, by moving the handle portion 11, the direction and position of the guide portion 13 are adjusted with the contact portion 17 as a fulcrum. Since the direction and position of the guide portion 13 can be easily adjusted, it is possible to reduce the burden on the operator. Further, by visually observing the other end side protruding upward from the handle portion 11 in the pole portion 12, it is possible to confirm the position and direction of the implant cavity during cutting. In this manner, the implant cavity can be formed at an appropriate position, direction, and depth while confirming the occlusal relationship with the paired teeth.
- FIG. 3 is a top view of several types of guide jigs according to the present embodiment.
- 3A shows a guide jig for the upper and lower jaw front teeth
- FIG. 3B shows a modification of the guide jig for the upper and lower jaw front teeth
- FIG. 3C shows a guide jig for the upper and lower jaw molars.
- the same names are given the same reference numerals for explanation.
- the guide jig 1 for upper and lower jaw front teeth is provided with a guide portion 13 in the longitudinal direction on the back side of the pole portion 12 when viewed from the handle portion 11 side. For this reason, when forming the implant cavity of the upper and lower jaw front teeth aligned in front of the oral cavity, it is easy to guide the cutting bar 21 (see FIG. 4) appropriately while checking the position and direction of the implant cavity. .
- the guide jig for the upper and lower jaw front teeth only needs to be provided with the guide part 13 on the back side of the pole part 12 when viewed from the handle part 11 side, and like the guide jig 1 shown in FIG. A guide portion 13 may be provided on the side. Note that the guide jig 1 shown in FIG. 3B may be used for upper and lower jaw premolars.
- the guide jig 1 for upper and lower jaw molars is provided with a guide portion 13 side by side on the pole portion 12 when viewed from the handle portion 11 side. For this reason, when forming the implant cavity of the upper and lower jaw molars arranged in the back of the oral cavity, it is easy to guide the cutting bar 21 appropriately while checking the position and direction of the implant cavity.
- the upper guide jig 1 in FIG. 3C is provided with a guide portion 13 on the right side of the pole portion 12 and is used for the lower right molar and the upper left molar.
- 3C has a guide portion 13 on the left side of the pole portion 12, and is used for the lower left molar and the upper right molar.
- each guide jig 1 is properly used according to the position of the tooth in the oral cavity.
- the implant cavity is formed by expanding the hole diameter in several stages.
- each guide jig 1 is provided with a guide portion 13 having an inner diameter that matches the diameter of the cutting bar 21.
- each guide jig 1 is selectively used when the implant cavity 28 is formed by the cutting bar 21 having a diameter of 2 mm and when the implant cavity 28 is expanded by the cutting bar 21 having a diameter of 3 mm.
- Each guide jig 1 is preferably designed so that the pole portion 12 has a diameter of 2 mm and a total length of 10 mm, and the guide portion 13 has a total length of 5 mm.
- FIG. 4 is an explanatory diagram of a method for using the guide jig according to the present embodiment.
- the usage method of a guide jig is the same also at the time of formation of the implant fossa of another tooth.
- the case where the upper guide jig of FIG. 3C is used will be described.
- a marking hole 26 having a diameter of about 2 mm and a depth of about 1 mm is formed by a round bar (not shown) at the implant placement position on the alveolar bone 25.
- the formation position of the implant cavity 28 is determined on the alveolar bone 25. Since the actual surface of the alveolar bone 25 is not flat and often bleeds, the surgeon can check the implant placement position using the hole 26 as a clue.
- the guide jig 1 for the cutting bar 21 having a diameter of 2 mm is inserted into the oral cavity, and the tapered contact portion 17 of the pole portion 12 is positioned 1 mm behind (centrifugal) of the hole 26. Is abutted. Thereby, the front end side of the guide jig 1 is stably supported on the alveolar bone 25. And the optimal guide direction by the guide jig
- the cutting bar 21 having a diameter of 2 mm is inserted into the hole of the guide portion 13 with the handle portion 11 fixed. Then, the handpiece 22 is driven, and the formation of the implant cavity by the cutting bar 21 is started. Since the guide part 13 guides the cutting bar 21 in parallel to the pole part 12, it is possible to confirm the cutting state of the implant cavity 28 by visually observing the other end side (upper end side) of the pole part 12. It has become. Therefore, unlike the case where the tip of the cutting bar 21 is directly observed to confirm the cutting state of the implant cavity, it is not difficult to visually check due to bleeding or the like.
- the guide jig 1 for the cutting bar 21 having a diameter of 3 mm is inserted into the oral cavity, and the diameter of the implant cavity 28 is expanded to 3 mm by the same procedure.
- the implant cavity 28 is expanded with the final cutting bar corresponding to the implant system, and the formation of the implant cavity 28 is completed. Thereafter, the implant is placed in the implant cavity 28, and the superstructure (artificial dental crown) is attached via the abutment.
- the cutting bar 21 can be guided to an appropriate position by moving the guide jig 1 while confirming the occlusal relationship with the opposing teeth. Further, by visually observing the pole portion 12 protruding from the distal end side of the handle portion 11, the position and direction of the implant cavity 28 can be confirmed. At this time, unlike the case of confirming the position and direction of the implant cavity 28 by visually observing the tip of the cutting bar 21, it is not difficult to visually observe due to bleeding or the like. In this manner, the implant cavity 28 can be formed in an ideal position and direction using the guide jig 1 while visually observing, and an upper structure (artificial dental crown) having a good occlusal relationship can be manufactured.
- the cutting depth of the cutting bar 21 can be controlled because the pole part 12 hits the handpiece. Therefore, the depth adjustment is not required and the operation time can be shortened, and unintended peripheral parts are not damaged. Furthermore, the manufacture of stents and advanced equipment are unnecessary, and the cost can be reduced.
- the lowering of the cutting bar 21 is regulated by the head 23 of the handpiece 22 abutting against the regulating surface 18 of the pole portion 12, but the present invention is not limited to this configuration.
- the lowering of the cutting bar 21 may be restricted by the guide portion 13.
- the cutting bar 21 has a predetermined length on the proximal end side as a chuck portion 31 attached to the handpiece 22, and a portion extending downward (cutting direction) from the chuck portion 31 has a cutting portion 32 having a cutting blade. It has become.
- a part of the chuck part 31 is chucked by the handpiece 22, and the remaining part of the chuck part 31 is exposed to the outside together with the cutting part 32 (see FIG. 6).
- the outer diameter of the cutting part 32 is smaller than the outer diameter of the chuck part 31, and a step is formed at the boundary between the cutting part 32 and the chuck part 31.
- the outer diameter of the chuck portion 31 is 2.2 mm
- the outer diameter of the cutting portion 32 is 2.0 mm.
- the cutting part 32 does not need to have the cutting blade formed over the full length, and should just be provided toward the front-end
- the inner peripheral surface of the guide portion 13 is a guide surface 33 that guides the cutting portion 32, is smaller than the outer diameter of the chuck portion 31, and is formed corresponding to the outer diameter of the cutting portion 32.
- the guide surface 33 is formed with a diameter of 2.05 mm by providing a slight play with respect to the cutting portion 32.
- the guide surface 33 on the inner periphery of the guide portion 13 is formed so that only the cutting portion 32 excluding the chuck portion 31 on the proximal end side of the cutting bar 21 can be inserted.
- the upper surface 34 of the guide portion 13 functions as a regulating surface that regulates the amount of cutting by the cutting bar 21. While the implant cavity 28 is being cut, the chuck portion 31 abuts against the upper surface 34 of the guide portion 13 so that the lowering of the cutting bar 21 to a position deeper than the target depth is restricted.
- the alveolar bone 25 is cut until the chuck portion 31 hits the upper surface 34 of the guide portion 13.
- the step of the chuck portion 31 abuts against the guide portion 13, whereby the lowering of the cutting bar 21 is restricted. Therefore, by designing the length of the chuck portion 31 in consideration of the target depth of the implant cavity, the mandible nerve 27 (the maxilla at the time of processing of the maxillary side teeth) is prevented from being cut more than the target depth of the implant cavity 28. Peripheral parts such as sinus are not damaged.
- the pole portion 12 protrudes upward from the guide portion 13, but the present invention is not limited to this configuration.
- the guide portion 13 may protrude upward from the pole portion 12.
- the cutting depth of the cutting bar 21 is regulated by the chuck portion 31 abutting against the guide portion 13 before the handpiece 22 abuts against the pole portion 12. Therefore, the lowering of the cutting bar 21 can be restricted by the guide portion 13 even if the cutting bar 21 is from a different manufacturer.
- the upper surface of the guide portion 13 may be formed flush with the upper surface of the pole portion 12.
- the pole portion 12 protrudes from the distal end side of the handle portion 11 in the direction opposite to the cutting direction by the cutting bar 21, but is not limited to this configuration. At least one of the pole part 12 and the guide part 13 should just protrude in the direction opposite to the cutting direction by the cutting bar 21 from the front end side of the handle part 11. For example, both the pole portion 12 and the guide portion 13 may protrude from the distal end side of the handle portion 11 to form a flush regulation surface 18, or only the guide portion 13 may protrude from the distal end side of the handle portion 11. Good.
- the pole portion 12 is provided at the tip of the handle portion 11 and the guide portion 13 is provided on the outer peripheral surface of the pole portion 12, but the present invention is not limited to this configuration.
- the pole portion 12 may be provided in any way as long as it can support the distal end side of the handle portion 11.
- the guide portion 13 may be provided in any manner as long as the cutting bar 21 can be guided on the distal end side of the handle portion 11.
- the handle portion 11 is formed in a long shape with a rectangular shape in cross section, but is not limited to this shape.
- the handle portion 11 only needs to have a sufficient length so that the proximal end side can be gripped and moved while the distal end side is inserted into the oral cavity.
- the pole portion 12 is formed in a cylindrical shape, but is not limited to this shape.
- the pole portion 12 may have any shape as long as it can support the distal end side of the handle portion 11.
- the contact portion 17 of the pole portion 12 is not limited to the tapered shape.
- the guide portion 13 is formed in a tube shape, but is not limited to this shape.
- the guide portion 13 may have any shape as long as it can guide the cutting bar 21 on the distal end side of the handle portion 11.
- the rear side or side of the pole portion 12 and the guide portion 13 are provided as viewed from the handle portion 11 side, but the present invention is not limited to this configuration.
- the position of the guide part 13 with respect to the pole part 12 can be appropriately changed according to the position of the teeth and the like.
- the pole portion 12 has a length corresponding to the target depth of the implant cavity 28, but is not limited to this configuration.
- the pole part 12 should just have the length which can control the cutting
- tip of the contact part 17 of the pole part 12 was formed on the central axis of the pole part 12, it is not limited to this structure.
- the tip of the contact portion 17 may be formed at a position eccentric from the central axis of the pole portion 12.
- the tip of the contact portion 17 is formed on the central axis of the pole portion 12, and the guide jig 1 for the cutting bar 21 having a diameter of 3 mm is in contact with the guide jig 1.
- the tip of the portion 17 may be formed at a position eccentric from the central axis of the pole portion 12.
- the cutting bar 21 having a diameter of 3 mm is used so that the contact position of the contact portion 17 with respect to the alveolar bone 25 is the same when the implant cavity 28 having a diameter of 2 mm is formed and when the implant cavity 28 having a diameter of 3 mm is formed.
- the tip of the contact portion 17 of the guide jig 1 is formed at a position eccentric from the central axis of the pole portion 12.
- the present invention has an effect that an implant cavity can be appropriately formed without forming a stent, and the operation time can be reduced at a lower cost. This is useful for a guide jig that guides the cutting bar of the handpiece during the formation.
Abstract
Description
Claims (7)
- インプラントの埋入位置にインプラント窩を形成する際に、ハンドピースに装着された切削バーをガイドするためのガイド治具であって、
長尺状のハンドル部と、
前記ハンドル部の先端側を支持するポール部と、
前記ハンドル部の先端側において前記切削バーをガイドするガイド部とを備え、
前記ポール部及び前記ガイド部の少なくとも一方は、前記ハンドル部の先端側から前記切削バーによる切削方向とは逆向きに突出することを特徴とするガイド治具。 - 前記ポール部が、前記ハンドル部の先端側から前記切削バーによる切削方向とは逆向きに突出することを特徴とする請求項1に記載のガイド治具。
- 前記ポール部が、前記インプラント窩の目標深さに対応した全長を有することを特徴とする請求項1または請求項2に記載のガイド治具。
- 前記ポール部は、前記ハンドル部の先端に設けられ、
前記ガイド部は、前記ハンドル部側からみて前記ポール部の奥側に設けられることを特徴とする請求項1に記載のガイド治具。 - 前記ポール部は、前記ハンドル部の先端に設けられ、
前記ガイド部は、前記ハンドル部側からみて前記ポール部に横並びに設けられることを特徴とする請求項1に記載のガイド治具。 - 前記切削バーは、前記ハンドピースに装着されるチャック部と、前記チャック部から前記切削方向に延びる切削部とを有しており、
前記切削部の外径は、前記チャック部の外径よりも小さく、
前記ガイド部は、前記チャック部の外径よりも小さく、かつ前記切削部の外径に対応したガイド面を有することを特徴とする請求項1に記載のガイド治具。 - 前記ガイド部は、前記ポール部よりも前記切削方向とは逆向きに突出することを特徴とする請求項6に記載のガイド治具。
Priority Applications (5)
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CN201380059882.2A CN105073060B (zh) | 2012-11-15 | 2013-11-07 | 导向夹具 |
KR1020157014637A KR102089427B1 (ko) | 2012-11-15 | 2013-11-07 | 가이드 지그 |
EP13855881.2A EP2921128B1 (en) | 2012-11-15 | 2013-11-07 | Guide jig |
US14/441,729 US20150282894A1 (en) | 2012-11-15 | 2013-11-07 | Guide jig |
ES13855881T ES2776030T3 (es) | 2012-11-15 | 2013-11-07 | Plantilla de guía |
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JP2012-250805 | 2012-11-15 | ||
JP2012250805 | 2012-11-15 | ||
JP2012-284861 | 2012-12-27 | ||
JP2012284861A JP6153721B2 (ja) | 2012-11-15 | 2012-12-27 | ガイド治具 |
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US (1) | US20150282894A1 (ja) |
EP (1) | EP2921128B1 (ja) |
JP (1) | JP6153721B2 (ja) |
KR (1) | KR102089427B1 (ja) |
CN (1) | CN105073060B (ja) |
ES (1) | ES2776030T3 (ja) |
TW (1) | TWI603719B (ja) |
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WO2017203419A1 (en) * | 2016-05-24 | 2017-11-30 | Azenium Ip Limited | A device and method for placing an implant in a tooth socket |
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CN107825445B (zh) * | 2017-03-21 | 2024-03-19 | 青岛达芬奇科技有限公司 | 一种多洞物体自动化夹取装置 |
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KR102082947B1 (ko) * | 2017-12-15 | 2020-02-28 | 주식회사 이비아이 | 임플란트시술용 트레파인 가이드 |
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KR102415024B1 (ko) | 2020-06-26 | 2022-06-29 | 연세대학교 원주산학협력단 | 골전도 임플란트 수직 드릴링 가이드 및 편평도 측정 장치 |
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- 2013-11-07 EP EP13855881.2A patent/EP2921128B1/en active Active
- 2013-11-07 US US14/441,729 patent/US20150282894A1/en not_active Abandoned
- 2013-11-07 ES ES13855881T patent/ES2776030T3/es active Active
- 2013-11-07 CN CN201380059882.2A patent/CN105073060B/zh not_active Expired - Fee Related
- 2013-11-07 KR KR1020157014637A patent/KR102089427B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
JP6153721B2 (ja) | 2017-06-28 |
EP2921128A1 (en) | 2015-09-23 |
TW201424700A (zh) | 2014-07-01 |
CN105073060A (zh) | 2015-11-18 |
TWI603719B (zh) | 2017-11-01 |
US20150282894A1 (en) | 2015-10-08 |
JP2014113429A (ja) | 2014-06-26 |
KR102089427B1 (ko) | 2020-03-16 |
CN105073060B (zh) | 2018-11-13 |
EP2921128A4 (en) | 2016-08-10 |
ES2776030T3 (es) | 2020-07-28 |
EP2921128B1 (en) | 2019-12-25 |
KR20150118086A (ko) | 2015-10-21 |
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