• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Screw and drive tool for dental implantology; comprising: one of them, a serrated head (21), rounded, with a series of teeth (22) distributed peripherally; and the other, a prismatic housing (13) with a plurality of longitudinal channels (14). Said longitudinal channels (14) have a greater width than the corresponding teeth (22), so that in the coupling position of the screw with the driving tool, the toothed head (21) is capable of a relative rotation of a certain amplitude (a) inside the prismatic housing (13) and with respect to the geometric axis of the screw, between: an operative tightening position in which teeth (22) and channels (14) contact each other by means of first laterals (22a, 14a) ; and an operating loosening position in which the teeth and channels contact each other by a few lateral seconds (22b, 14b). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2635650A1
    申请号:ES201630407
    申请日:2016-04-04
    公开日:2017-10-04
    发明作者:Jordi MARTINEZ LOPEZ；Roberto PADROS ROLDAN；Joan VALLS ANDIÑACH；Guillem TENA CORTS
    申请人:Vogul S L U；Vogul SLU；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Screw and drive tool for dental implantology.
    Object of the invention.
    The object of the invention is a screw applicable in dental implantology for the fixation of a prosthesis to an implant, and a tool for actuating said screw.
    Field of application of the invention.
    This invention is applicable in the field of dental implantology.
    State of the art.
    In the field of dental implantology, the use of screws of different types for the fixation of implant prostheses is widely known.
    Generally these fixing screws pass through an upper hole or chimney of the prosthesis to reach the implant and screw on it.
    Initially, this operation was always carried out on the same axis of the dental implant, which implies a prosthetic limitation that hindered the restoration by screw in the works where the axis of the implant leaks through the vestibular part of the tooth.
    The placement and subsequent extraction of this prosthesis fixation screw is carried out by means of a suitable drive tool to engage with the screw head and communicate a turning movement in the direction of tightening or loosening.
    For years there are different types of screws and tools for dental implantology that aim to screw a prosthesis or structure correcting the angulation with respect to the axis of the dental implant.
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    Different documents related to the fixation of implant prostheses are mentioned below: WO2014012970A1; WO2013004387A1; WO2013004387; WO2011042583;
    EP2269538; ES2278477_A1; WO2014076332A1
    As a background closer to the invention, it is worth mentioning the invention patent ES2279676B1 in which a tool with an "Allen ball" type head is used that is internally coupled in a housing provided in the screw head. This solution allows reduced angulation between the tool axis and the screw axis, specifically of the order of 20 °.
    In the patent of invention that ES2336062B1 also describes a screw for fixing a prosthesis on a dental implant and a tightening wrench that allows slightly higher inclinations of the tool with respect to the axis of the screw.
    In contrast, to the aforementioned ES2279676B1 cited above, in this case the screw has a head with a substantially spherical protuberance, provided with a plurality of curved concave southern recesses configured to receive a face of a screw manipulation or actuation tool and having a latitude comprised between ± 80 ° with respect to an equator of the screw head.
    This specific configuration allows the screw head to adapt to the end of the tightening wrench with an inclination of up to 30 ° with respect to the screw axis.
    The aforementioned background continues to have important limitations both in regard to:
    - the massive angulation of the tool with respect to the axis of the fixing screw and consequently of the implant, which in no case exceeds 35 ° and
    - the possibility of the use of the tightening screw, preventing its extraction, when the contact surface of the screw undergoes a deformation delay during its tightening with the drive tool.
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    The first drawback determined by a design issue of the screw head and the coupling end or of the tool with it.
    The second drawback is determined by the fact that both the housing or defined in the screw and the head of the tool destined to be coupled with it have conjugated or complementary polygonal sections and designed to engage each other in an adjusted manner so that the screw can be positioned in the head of the drive tool oy be moved to the mounting position with the tool itself.
    However, this determines that both the tightening surfaces and the loosening surfaces are the same and, in case of deformation during the tightening of the screw, it becomes unusable, being necessary in some cases to destroy the prosthesis by not being able to unscrew the screw.
    Description of the invention.
    The screw and the drive tool, object of the invention have constructive particulars oriented to define differentiated contact surfaces in the tightening and loosening positions of the implant, so that in case of deterioration of the contact surfaces in the position Operational tightening, due for example to the application of excessive force, said deterioration does not affect the contact surfaces or in the operative position of loosening, allowing the extraction of the screw.
    Another objective of the invention is to allow an angulation an angulation between the axes of the screw and the tool up to 45 degrees, overcoming the angulation achieved by the aforementioned background and improving the accessibility and comfort in the screw drive by means of the tool .
    The screw comprises a threaded end section for attachment to an implant and / or prosthetic attachment.
    The screw and the drive tool of the invention comprise: one of them, a serrated head, rounded, with a series of peripherally distributed teeth; and the other, a prismatic housing with a plurality of longitudinal channels distributed in its periphery;
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    the number of channels being equal to or greater than the number of teeth of the toothed head, and preferably multiple thereof.
    According to the invention; said longitudinal channels have a width greater than that of the corresponding teeth, so that in the position of coupling of the screw with the drive tool, the toothed head is made possible by a relative rotation of a certain amplitude (a) within the prismatic housing and with respect to the geometric axis of the screw, enter:
    - an operative tightening position, in which a first lateral of the teeth establishes a superficial contact with a first lateral of the channels and a second lateral of the teeth is kept distanced from a second lateral of the channels and without contact therewith; Y
    - an operative loosening position, in which the second side of the teeth establishes a superficial contact with the second side of the channels, and the first side of the teeth is kept away from the first side of the channels and without contact with that one
    As already mentioned, the prismatic housing has a number of longitudinal channels equal to or greater than the number of teeth of the toothed head and preferably comprised between 3 and 12 channels; allowing in any case the relative rotation of the toothed head with respect to the prismatic housing between the operative position of tightening and the operative position of loosening.
    The toothed head can have a spherical or oval configuration allowing, together with the possibility of relative rotation between said toothed head and the prismatic housing, between the operative positions of tightening and loosening, an inclination or angulation of up to 45 degrees between the axis of the drive tool and screw fixing shaft.
    Description of the figures.
    To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is attached to the present specification in which, with an illustrative and non-limiting nature, the following has been represented:
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    - Figure 1 shows an elevation view of an example of embodiment of the screw and the drive tool for dental implantology in a coupling position and according to the invention.
    - Figure 2 shows an elevation view of the screw sectioned by a vertical plane and of the drive tool or disengaged from it and displaced laterally
    - Figure 3 corresponds to a plan view of figure two in which the toothed head is sectioned by the plane A-A 'referenced in said figure 2.
    - Figure four shows a top plan view of the toothed head, sectioned by a horizontal plane and coupled in the prismatic housing, in an operative screw tightening position.
    - Figure 5 shows a view analogous to the previous one with the serrated head in an operative position of loosening the screw.
    - Figure 6 shows an elevation view of the toothed head of the tool coupled with the housing or prismatic of the screw, in a position of maximum lateral angulation.
    Preferred embodiment of the invention.
    An example of embodiment of the screw (1) and of the drive tool (2) applicable in dental implantology, according to the invention, is shown in Figure 1.
    The screw (1) comprises an end section (11) threaded for attachment to an implant, and a head (12) attachable to a drive tool (2) comprising a generally spherical toothed head (21), with a plurality of teeth (22) distributed in its periphery.
    As can be seen in Figures 2 and 3, the head (12) of the screw (1) comprises a prismatic housing (13) with a plurality of longitudinal channels (14) distributed in its periphery.
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    In this example of realization, the prismatic housing (13) has a depth between 0.5 and 2.0 millimeters, and the toothed head (21) has a diameter between 0.8 mm and 3.0 millimeters.
    The teeth (22) of the toothed head (21) correspond in number and distribution with the channels (14) defined in the prismatic housing (13) of the screw (1).
    As can be seen in the aforementioned figure (3) each of the channels (14) of the prismatic housing comprises a first lateral (14a) and a second lateral
    (14b) on which a first lateral (22a) and a second lateral (22b) of the teeth (22) of the toothed head (21) act respectively and selectively during the tightening and loosening operations of the screw (1) .
    As can be seen in Figures 4 and 5, the teeth (22) of the head (21) of the drive tool have a smaller width than the longitudinal channels (14) of the prismatic housing of the screw (1); which allows a relative rotation (a) of the toothed head (21) with respect to the prismatic housing (13) of the screw (1), between: - an operative tightening position represented in figure 4, and - an operative loosening position represented in figure 5.
    In Figure 4 the toothed head (21) is shown in an operative tightening position, clockwise, in which the teeth (22) act with their first lateral (22a) against the first lateral (14a) of the longitudinal channel (14) corresponding, keeping the second lateral (22b, 14b) of the teeth (22) and the channels (23) spaced laterally and without contact between sL Thus, in case of deformation of the first lateral (22a, 14a) of the teeth (22) or of the channels (14) due, for example, to excessive tightening, the lateral seconds (22b, 14b) of the teeth and the channels remain intact, allowing subsequent loosening and screw extraction (1).
    In the operative loosening position shown in Figure 5, the teeth (22) act with their second lateral (22b) against the second lateral (14b) of the corresponding channels (14), maintaining the first lateral (22a, 14a) of the teeth (22) and the channels (14) spaced laterally and without contact between sL
    As can be seen in figure 6, the configuration of the toothed head (21) of the tool (2) and the prismatic housing (13) of the screw (1) allow an angulation (b) between the tool (2) and the screw (1) up to 45 degrees, thus offering greater working functionality in all prostheses manufactured either by conventional casting, subtraction (milled CAD-CAM) or addition (SLM, 5 DMLS), or parts manufactured in series.
    The longitudinal channels (14) present in the convergence zone of their first (14a) and their second lateral (14b) a rounded intermediate surface (14c) of reinforcement, which improves the resistance of the screws, eliminating possible areas of crack propagation and fracture of the same 10.
    Once the nature of the invention has been sufficiently described, as well as an example of preferred realization, it is stated for the appropriate purposes that the materials, shape, size and disposition of the described elements may be modified, provided that this does not imply alteration of the essential features of the invention that are claimed below.
    权利要求:
    Claims (5)
    [1]
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    1. Screw and drive tool for dental implantology; comprising: one of them, a toothed head (21), rounded, with a series of teeth (22) distributed peripherally; and the other, a prismatic housing (13) with a plurality of longitudinal channels (14) distributed in its periphery; the number of channels being equal to or greater than the number of teeth (22) of the toothed head (21) and preferably multiple thereof; characterized in that said longitudinal channels (14) have a width greater than the corresponding teeth (22), so that in the position of coupling of the screw with the drive tool, the toothed head (21) is made possible by a relative rotation of a certain amplitude (a) inside the prismatic housing (13) and with respect to the geometric axis of the screw, between:
    - an operative tightening position, in which a first lateral (22a) of the teeth (22) establishes a superficial contact with a first lateral (14a) of the channels (14) and a second lateral (22b) of the teeth ( 22) is kept distanced from a second side (14b) of the channels (14) and without contact with said second side (14b) and;
    - an operative loosening position, in which the second lateral (22b) of the teeth (22) establishes a superficial contact with the second lateral (14b) of the channels (14), and the first lateral (22a) of the teeth is kept distanced from the first lateral (14a) of the channels (14) and without contact with said first lateral (14b).
    [2]
    2. - Screw and drive tool according to claim 1, characterized in that the prismatic housing (13) has a depth between 0.5 and 2.0 millimeters.
    [3]
    3. Screw and drive tool, according to claim 1, characterized in that the toothed head (21) has a diameter between 0.8 mm and 3.0 millimeters.
    [4]
    4. - Screw and drive tool, according to claim 1, characterized in that the toothed head (21) has a spherical or oval shape.
    [5]
    5. Screw and drive tool, according to claim 1, characterized in that the prismatic housing (13) is defined in the head (12) of the screw (1) and the toothed head (21) in the drive tool (2) ).
    5. 6. Screw and drive tool, according to claim 1, characterized in that
    the longitudinal channels (14) present in the convergence zone of its first (14a) and its second lateral (14b) a rounded intermediate surface (14c) of reinforcement
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2635650A1|2017-10-04|Screw and driving tool for dental implantology. |
    ES2241295T3|2005-10-16|DEVICE FOR SUBJECTING AND / OR FORMING A DENTAL PROTESIS.
    ES2431392T3|2013-11-26|Dental implant and kit that includes said dental implant
    BR112015015009B1|2020-12-08|abutment and method of attaching a abutment to a dental implant
    ES2389010T3|2012-10-22|Dental implant
    ES2508465T3|2014-10-16|Torque Wrench
    ES2251947T3|2006-05-16|DENTAL IMPLANT WITH ANTIRROTATIONAL MEANS OF SUPRAESTRUCTURES.
    ES2704899T3|2019-03-20|Implant analog
    ES2315100A1|2009-03-16|Internal cone dental implant
    WO2015040250A1|2015-03-26|Interface element for dental prostheses
    ES2343570T3|2010-08-04|INSTRUMENTAL FOR THE EXTRACTION OF PROTESTIC ELEMENTS WITH RADICULAR BOLTS OR IMPLANTS.
    ES2842303T3|2021-07-13|Dental implant that has a conical threaded surface with installation enhancement characteristics
    ES2674702T3|2018-07-03|Dental implant support with an annular recess
    ES2262052T3|2006-11-16|MAXILAR ORTHOPEDIC DEVICE TO PRE-DISLOCK THE LOWER MAXILAR OF A PATIENT.
    ES2827210T3|2021-05-20|System for making a dental prosthesis
    ES2841176T3|2021-07-07|Dental prosthetic device
    ES2874555T3|2021-11-05|Device for holding a dental implant abutment and superstructure arrangement
    ES2323337B1|2010-04-06|IMPLANT-DOLL SET.
    ES2871380T3|2021-10-28|Dental implant system composed of angled metal abutments
    ES2732926T3|2019-11-26|Implant system in one or several pieces with a mounting element with one or several outer rings
    ES2575509B1|2017-01-03|Planning and milling guide for dental implants
    ES2279676A1|2007-08-16|Dynamic pier for correcting implants in bone, has base and shaft so that the base has hemispherical configuration and end of shaft coupled to base has complementary configuration
    ES2342955B1|2011-04-25|OSCILLATING SPHERICAL RETAINER FOR THE SETTING OF DENTAL ENVELOPES.
    ES2584167B1|2017-09-12|INTERFACE ELEMENT FOR DENTAL PROSTHESIS
    ES2611760B1|2018-02-13|SET OF DENTAL IMPLANT AND PROTESTIC COMPONENTS, WHICH INCLUDES A TRANSEPITELIAL SHIRT WITH ANTIRROTATIONAL SUPERIOR CONNECTION
    同族专利:
    公开号 | 公开日
    EP3441041A4|2020-03-04|
    US20190151051A1|2019-05-23|
    WO2017174830A1|2017-10-12|
    EP3441041A1|2019-02-13|
    ES2635650B2|2019-05-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2279676A1|2005-03-23|2007-08-16|Esteban Xam-Mar Mangrane|Dynamic pier for correcting implants in bone, has base and shaft so that the base has hemispherical configuration and end of shaft coupled to base has complementary configuration|
    ES2368635A1|2009-04-16|2011-11-21|Ramón Farre Berga|Structure for coupling between a screw head and a tightening tool|
    WO2014076332A1|2012-11-19|2014-05-22|Xam-Mar Mangrané Esteban|Screw, tool and assembly for dental implantology|
    US5207132A|1991-10-16|1993-05-04|Textron Inc.|Elliptical lobed drive system|
    SE507360C2|1996-09-24|1998-05-18|Nobel Biocare Ab|Device for systems with assortment of dental screws and assortment of dental screws|
    US20060110237A1|2004-11-23|2006-05-25|Richard Belinda|Spline drive fastener system|
    SG147344A1|2007-05-02|2008-11-28|Unisteel Technology Ltd|Screw head recess drive and corresponding driver tool and recess punch|USD882794S1|2018-01-31|2020-04-28|Beijing Smtp Technology Co., Ltd.|Ultrasonic cutter head|
    USD892604S1|2018-11-08|2020-08-11|Superior Tool Co., Ltd.|Screw|
    USD928602S1|2019-06-07|2021-08-24|Sps Technologies, Llc|Blind fastener bolt|
    KR102085150B1|2019-09-06|2020-03-04|주식회사 진성아스타|Connector for furniture assembly|
    CN110969147A|2019-12-23|2020-04-07|哈尔滨工程大学|Ray normal wave theory-based method for calculating position of convergence zone of lower focal dispersion line of deep sea complete sound channel|
    法律状态:
    2018-10-05| FC2A| Grant refused|Effective date: 20181001 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630407A|ES2635650B2|2016-04-04|2016-04-04|Screw and driving tool for dental implantology.|ES201630407A| ES2635650B2|2016-04-04|2016-04-04|Screw and driving tool for dental implantology.|
    PCT/ES2016/000104| WO2017174830A1|2016-04-04|2016-09-21|Screw and actuating tool for dental implantology|
    EP16897794.0A| EP3441041A4|2016-04-04|2016-09-21|Screw and actuating tool for dental implantology|
    US16/091,231| US20190151051A1|2016-04-04|2016-09-21|Screw and actuating tool for dental implantology|
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