EP3007645A1 - Dental prosthesis and a method for making the prosthesis - Google Patents
Dental prosthesis and a method for making the prosthesisInfo
- Publication number
- EP3007645A1 EP3007645A1 EP14811030.7A EP14811030A EP3007645A1 EP 3007645 A1 EP3007645 A1 EP 3007645A1 EP 14811030 A EP14811030 A EP 14811030A EP 3007645 A1 EP3007645 A1 EP 3007645A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dental
- implant
- tube
- communication channel
- dental prosthesis
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/081—Making teeth by casting or moulding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0001—In-situ dentures; Trial or temporary dentures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
-
- 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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0051—Abutment monobloc with restoration
-
- 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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0053—Connecting devices for joining an upper structure with an implant member, e.g. spacers with angular adjustment means, e.g. ball and socket joint
-
- 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
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
- G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
Definitions
- the present invention relates to a dental prosthesis, such as a dental bridge restoration or a single unit restoration. Specifically the invention relates to a dental prosthesis to be connected to a dental implant system.
- the dental prosthesis is applied for instance by cementing or by means of separate securing screws.
- One example of a dental prosthesis in the form of a bridge restoration is illustrated in US 6,319,000 Bl .
- a special screw driver having a rotatable handle portion and flexible and/or bendable shaft portion should be used for fixing the securing screw.
- the screw member seat for providing support to the head of the screw is integrated with the dental prosthesis/superstructure.
- the superstructure could be provided with a dental implant seat or a spacer element seat, such as a recess suitable for receiving a protrusion on the dental implant or spacer element.
- the shoulders of the screw member seat are created by a drill bit to provide an arched or semi-spherical shape.
- a matching screw member with a bevelled, such as arched, spherical or semi-spherical head, is then used for securing the dental prosthesis/superstructure.
- the communication channel is drilled.
- the drilling procedure comprises a drilling of a first straight bore from a first point, and a drilling of a second straight bore from a second point, such that the first bore and the second bore intersect in the interior of the prosthesis/superstructure to form the communication channel.
- the angled screw channel passage through the dental prosthesis, the communication channel is constituted by a bendable, elongated tube attached onto the implant or the implant abutment level for defining a desired angle of said communication channel and for a subsequent wax-up of the final restoration.
- the elongated tube is attached directly onto the implant or the implant abutment level by means of a prosthetic screw member.
- the elongated tube is attached to the implant or the implant abutment level via an interface abutment for fixation onto the implant or implant abutment level.
- the communication channel is constituted by the interface abutment and the bendable, elongated tube that fits onto the interface abutment.
- the bendable tube is made of a plastic material, such as PMMA or a similar material, so that the tube is possible to bend into a desired angle with flame/heat.
- the bending of the tube is performed by means of a specific tool to the desired angle of the tube.
- Figure 1 is a schematic overview of a dental prosthetic situation for a first embodiment of the invention
- Figure 2 is a side view of two interface abutments according to the invention
- Figure 3 is a longitudinal section of a bendable tube according to the invention.
- Figure 4a is a side view illustrating the bending of the tube by means of a one-piece tool bending the tube mounted onto the interface abutment
- Figure 4b is a side view illustrating a prepared prosthesis attached to analogues by means of a prosthetic screw
- Figure 5 illustrates the use of scan bodies for dental CAD-CAM technology
- Figure 6 is a schematic overview of a dental prosthetic situation for a second embodiment of the invention
- Figure 7 is a longitudinal section of a first type of a bendable tube according to the second embodiment of the invention
- Figure 8 is a longitudinal section of a second type of a bendable tube
- Figure 9 is a longitudinal section of a prosthetic screw to be used with the first type of bendable tube illustrated in figure 7,
- Figure 10 is a longitudinal section of a prosthetic screw to be used with the second type of bendable tube illustrated in figure 8, and
- Figure 1 1 is a side view illustrating the bending of the tube by means of a one-piece metal tool.
- Figures 1- 5 are related to a first embodiment of the invention.
- Figure 1 illustrates a dental prosthetic situation in which a conventional dental implant screw 1 is anchored into the jaw bone 2 by means of conventional technique which is not described here.
- a dental restoration procedure in which a conventional dental implant screw 1 is anchored into the jaw bone 2 by means of conventional technique which is not described here.
- prosthesis/superstructure 3 is attached to the implant screw 1 by means of a prosthetic screw 4. It should be understood that the prosthesis 3 could be attached either directly to the implant screw itself as illustrated in figure 1, or indirectly by means of a spacer/abutment applied onto the implant screw.
- the prosthesis 3 comprises a main body having a base portion 5 and a top portion 6 with a front surface 7 as well as a back or inside (occlusal) surface 8.
- the prosthetic screw 4 is applied by means of a screwdriver 24 through a screw channel 9 in the prosthesis.
- the screwdriver 24 might be a standard screwdriver having a hexagonal, square or Torx ball end for inserting the prosthetic screw with an angle up to 30°.
- Such ball end precision tools are available on the market and will not be described more in detail here.
- the screw channel 9 has a first mouth 10, a screw access hole, through which the screw 4 is inserted and a second mouth 11 in the base portion 5 of the prosthesis. In this way the channel 9 forms a through communication between the first mouth 10 and the second mouth 1 1 in the prosthesis.
- the communication channel 9 is angled so that the first mouth is located on the aesthetically unimportant surface of the prosthesis, the inside or occlusal surface 8.
- the angled screw channel 9 through the dental prosthesis is constituted by an interface abutment 12 for fixation onto the implant screw 1 and a bendable, elongated tube 13 that fits onto the interface abutment for defining said angled screw channel 9 and on which tube a wax-up of the final dental prosthesis is prepared.
- the abutment has a base portion in the form of a cylindrical collar 14 for fixation onto the implant or an implant abutment level by means of said standard prosthetic screw 4, a cylindrical or conical main body provided with retention grooves 15 for optimal bonding strength and long term stability and a top portion 16 with tripod shape for non-rotational of the bendable tube 13.
- the interface abutment is pre-fabricated/machined with industrial precision and could be made of various biocompatible materials, such as titanium, zirconium, cobalt chrome, gold or the like. For casting into any dental alloy of choice, the interface abutment might also be made of a burn-out material.
- the base portion interface has an internal or external connection compatible with existing dental implant systems on the market.
- the connection might be non- engaging for multiple unit restorations such as a dental bridge or engaging for single unit restorations.
- Figure 3 illustrates a bendable, plastic tube 13 that fits onto the interface abutment 12 and used for wax-up of the final bridge restoration configuration/shape.
- the tube is made of a plastic material such as PMMA or the like which material is possible to be angled with flame/heat and burn-out for dental casting technique. By using a special bending tool (see figure 4) a desired angle of up to 30° could be obtained.
- the through passage of the tube 13 has a base portion 17 which fits onto a cylindrical interface abutment and has a cylindrical inner tripod shape for a non-rotational fit.
- a tool 18 it is illustrated how the bending of the tube 13 could be achieved by means of a tool 18.
- the bendable plastic tube 13 is designed to fit onto a conical interface abutment and the base portion 17 therefore has a slightly conical inner tripod shape.
- the base portion 17 also has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 19 of the tube.
- the tube has a waist portion 20 formed by reduced wall material thickness, defining the desired bending area of the tube 13.
- the outer surface of the cylindrical portion 19 is made with retention grooves 21 for increased mechanical bonding to the wax-up material used.
- the bending is achieved by means of a one-piece tool 18 comprising a screw access shape member 22 while the base portion 17 is fitted to a conical interface abutment onto analogues 23, see figure 4a.
- Figure 4b further illustrates a prepared prosthesis with interface abutment 12 attached to analogues 23 by means of a prosthetic screw 4.
- the prosthetic screw 4 might be a standard prosthetic screw with a hexagonal standard grip, preferably made of titanium, DLC coated or similar, for cooperation with a screwdriver 24 having a hexagonal, square or Torx ball end.
- the interface abutments 12 are mounted and fixed onto analogues 23 using the prosthetic screws 4. Then the plastic tubes 13 are positioned onto the interface abutments 12 and a desired optimal prosthetic screw access angle output is defined. The plastic tubes are then angled by means of said bending tool 18 and flame or hot air 25 into a defined optimal prosthetic screw access angle output. A conventional wax-up is prepared onto the plastic tubes 13 into wished final shape, whereupon the tubes are cut at the occlusal level. Conventional dental casting technique is then used for transforming the wax- up model into a bridge restoration in the material of choice, such as any suitable dental metal alloy (gold, cobalt chrome etc) or press-ceramics. The fit of the framework on the interface abutments 12 is checked and eventually adjusted in the laboratory. Cosmetic veneering of choice is then applied according to conventional protocol.
- dental CAD-CAM technology could be used for the restoration.
- special scan bodies 26 made of a PEEK material are positioned into the plastic tubes 13 as illustrated in figure 5.
- a conventional wax-up framework is prepared onto the plastic tubes with the scan bodies and scanned with any existing, commercialized dental scanner or conventional 3D scanner.
- a choice of material between titanium, cobalt chrome and zirconium can then be made.
- the scan file is checked and sent in stl format to a production center.
- Figures 6 - 1 1 are related to a second embodiment of the invention in which the elongated tube is attached directly onto the implant or the implant abutment level by means of a prosthetic screw member, i.e. without any interface abutment.
- Figure 6 illustrates a dental prosthetic situation in which a conventional dental implant screw 1 ' is anchored into the jaw bone 2' by means of conventional technique which is not described here.
- a dental prosthesis/superstructure 3 ' is attached to the implant screw 1 ' by means of a prosthetic screw 4'.
- the prosthesis 3 ' could be attached either directly to the implant screw itself, or indirectly by means of a spacer/abutment applied onto the implant screw.
- the prosthesis 3 ' comprises a main body having a base portion 5 ' and a top portion 6' with a front surface 7' as well as a back or inside (occlusal) surface 8'.
- the prosthetic screw 4 ' is applied by means of a screwdriver, schematically indicated by the line 27, through a screw channel 9' in the prosthesis.
- the screwdriver 27 might be a standard screwdriver having a hexagonal ball end for inserting the prosthetic screw with an angle of for instance 30°. Such ball end precision hex tools are available on the market and will not be described more in detail here.
- the screw channel 9' has a first mouth 10', a screw access hole, through which the screw 4 ' is inserted and a second mouth 11 ' in the base portion 5 Of the prosthesis. In this way the channel 9' forms a through communication between the first mouth 10 ' and the second mouth 1 1 ' in the prosthesis.
- the communication channel 9' is angled so that the first mouth is located on the aesthetically unimportant surface of the prosthesis, the inside or occlusal surface 8'.
- the angled screw channel 9 ' through the dental prosthesis is constituted by a bendable, elongated tube 13 ' for fixation directly onto the implant screw 1 Or indirectly by means of a spacer/abutment applied onto the implant screw for defining said angled screw channel 9' and on which tube a wax-up of the final dental prosthesis is prepared by e.g. the "lost-wax" casting technique, CAD/CAM or other methods for producing a dental prosthesis.
- Figure 7 illustrates more in detail a first type of a bendable, plastic tube 13 ' that fits onto the implant screw 1 ' and used for wax-up of the final bridge restoration configuration/shape.
- the interface of the base portion 14' has an internal or external connection geometry compatible with a corresponding external or internal connection geometry of existing dental implant systems available on the market.
- the connection might be non-engaging for multiple unit restorations such as a dental bridge or engaging for single unit restorations.
- the tube is preferably made of a plastic material such as PMMA or the like which material is possible to be angled with flame/heat and burn-out for dental casting technique. By using a special bending tool (see figure 11) a desired angle of up to 45° could be obtained.
- the through passage of the tube 13 ' has a seat 15 ' for the prosthetic screw head for final fixation of the dental superstructure to the implant screw.
- the seat is formed as a rounded shoulder having a conical interface to cooperate with a corresponding conical interface of the head of a prosthetic screw, see figure 9 below.
- the base portion 14' has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 16 ' of the tube for increased wall thickness and a conical outer surface 17 ' .
- FIG 8 it is illustrated a slightly different bendable plastic tube 13 " which fits onto a conical interface of an implant abutment and the base portion 14" therefore has a conical inner shape 18'.
- the tube 13 " has a seat 15 " for the prosthetic screw head for final fixation of the dental superstructure to the implant screw.
- the seat 15 " is formed as a sharp edge shoulder with an upper planar seat surface 28 to cooperate with a corresponding planar interface surface 29 of the head of a prosthetic screw, see figure 10 below.
- the base portion 14' has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 16' for increased wall thickness of the tube.
- the outer surface of this base portion might be cylindrical or slightly conical.
- FIG. 9 illustrates two examples of prosthetic screws 4', 4" to be used for fixation of the tubes in figure 7 and figure 8, respectively, to the implant screw or implant abutment.
- the prosthetic screw heads are provided with a recess 31 , 31 ' for receiving the screw driver 27.
- the shape of the recess may be a slit, a star configuration or any other type of known recess shape to be used with a cooperating screw driver.
- the prosthetic screw might also be a standard prosthetic screw with a hexagonal standard grip, preferably made of titanium, DLC coated or similar, for cooperation with a screwdriver 27 having a hexagonal ball end.
- FIG 1 1 it is illustrated how the bending of the tube 13 ' could be achieved by means of a metal tool 32 having a main body 33 with a protruding member 34 adapted to the through passage of the tube. Bending of the tube 13 ' is effectuated by heating the bending area of the tube with a flame or hot air using the tool 32.
- the plastic tubes are angled by means of said bending tool and flame or hot air into a defined optimal prosthetic screw access angle output.
- a conventional wax-up is prepared onto the plastic tubes 13 ', 13 " into wished final shape, whereupon the tubes are cut at the occlusal level of the final dental prosthesis.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1300425A SE538410C2 (en) | 2013-06-13 | 2013-06-13 | Dental prosthesis and a method of making the prosthesis |
SE1400135A SE538448C2 (en) | 2014-03-12 | 2014-03-12 | Dental dentures |
PCT/SE2014/000076 WO2014200404A1 (en) | 2013-06-13 | 2014-06-10 | Dental prosthesis and a method for making the prosthesis |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3007645A1 true EP3007645A1 (en) | 2016-04-20 |
EP3007645A4 EP3007645A4 (en) | 2017-01-11 |
Family
ID=52022559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14811030.7A Withdrawn EP3007645A4 (en) | 2013-06-13 | 2014-06-10 | Dental prosthesis and a method for making the prosthesis |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3007645A4 (en) |
WO (1) | WO2014200404A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2920441C (en) | 2013-09-23 | 2020-10-27 | Esteban Xam-Mar Mangrane | Interface element for dental prostheses |
EP3212118B1 (en) | 2014-10-29 | 2021-04-14 | Euroteknika | Wound-healing unit for a dental restoration |
CN106264758B (en) * | 2015-06-26 | 2019-04-09 | 朴永浩 | A kind of tooth-planting edentulous jaw repairs wide-angle pontic base station and its application method |
EP3970658A1 (en) | 2015-09-30 | 2022-03-23 | Implant Direct Sybron International LLC | Screw-retained abutment with off-axis feature and method of making same |
ES2585733B1 (en) * | 2016-08-24 | 2017-07-10 | Promedent Cad-Cam, S.L.U. | IMPLANTED ANGULAR DENTAL PROSTHESIS |
FR3063884B1 (en) | 2017-03-20 | 2021-12-17 | Euroteknika | DENTAL RESTORATION PROCESS |
WO2018172261A1 (en) | 2017-03-20 | 2018-09-27 | Straumann Holding Ag | Two-part modelling aid |
US11826224B2 (en) | 2017-04-03 | 2023-11-28 | Implant Direct Sybron International Llc | Multi-unit dental assembly with off-axis feature |
EP3781077A1 (en) * | 2018-04-20 | 2021-02-24 | Valoc AG | Dental restoration, method of producing it, computer program and method of restoring a tooth |
FR3085833B1 (en) * | 2018-09-14 | 2022-11-11 | Euroteknika | MONOBLOC DENTAL RESTORATIVE ELEMENT |
ES2730054B2 (en) * | 2019-02-26 | 2021-05-04 | Astradentium Health Tech S L | CASTABLE ADJUSTABLE ABUTMENT FOR THE MANUFACTURE OF A SUPERSTRUCTURE OF A DENTAL PROSTHESIS |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5527182A (en) * | 1993-12-23 | 1996-06-18 | Adt Advanced Dental Technologies, Ltd. | Implant abutment systems, devices, and techniques |
SE512277C2 (en) * | 1998-07-10 | 2000-02-21 | Nobel Biocare Ab | Device, method and use in jaw replacement arrangements |
IL156202A0 (en) * | 2003-05-29 | 2003-12-23 | Polydent Medical Devices Ltd | Implant having integral flexible abutment portion and method for use thereof |
US20080206709A1 (en) * | 2007-02-27 | 2008-08-28 | Lannan William G | Gingival support sleeve |
ES2357204B1 (en) * | 2009-10-08 | 2012-03-06 | Ramón Farre Berga | ADITATION FOR THE CONFECTION OF THE INTERNAL STRUCTURE OF DENTAL PROSTHESIS. |
EP2736446B1 (en) * | 2011-07-27 | 2020-09-02 | Abracadabra Implants Ltd | Assembly for prosthodontic restoration |
-
2014
- 2014-06-10 WO PCT/SE2014/000076 patent/WO2014200404A1/en active Application Filing
- 2014-06-10 EP EP14811030.7A patent/EP3007645A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP3007645A4 (en) | 2017-01-11 |
WO2014200404A1 (en) | 2014-12-18 |
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