• 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:
    Dental scan abutment and assembly and fixation procedure. Dental scanning abutment to be mounted and fixed to an implant, provided with an indicator of the radial angular position of the anti-rotation means of the implant. The pillar comprises: - a main body provided with the indicator and means of connection to the implant, and - means for fixing to the implant formed by a fixation shaft and by an upper head, the lower end of the shaft being a threaded end provided with a threaded thread complementary to the internal thread of the threaded hole of the implant. The main body is configured for the housing and sliding through the fixing shaft, the lower end of the threaded shaft can be sunk inside the main body or protrude from its lower section, preventing the total extraction of the fixing shaft by simple longitudinal displacement by mechanical stop. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2583904A2
    申请号:ES201530304
    申请日:2015-03-10
    公开日:2016-09-22
    发明作者:Jordi TERRATS BES；Ramón TERRATS BES
    申请人:Terrats Medical SL；
    IPC主号:
    专利说明:

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    inclined with respect to the flat surface forming a right or obtuse angle with it.
    According to a feature of the invention, the head of the fixing means has an external surface, oriented in opposition to the fixing axis, smooth and devoid of holes, notches or fingerprints for fitting external tools.
    According to another feature of the invention, the head and the fixing axis are two separable bodies that can be joined together by at least one of the following types of joint formed by a threaded, adhesive, pressure and riveted joint.
    Alternatively to the foregoing, the head and the fixing shaft are joined together as part of the same body.
    According to another aspect of the invention, a method for the assembly and fixation of the dental scan abutment, such as the one described above (regardless of the embodiment in question) to a dental implant, or a replica thereof, is disclosed. provided with anti-rotation means and an internally threaded hole, as a previous step to a scanning stage.
    The method of the invention is characterized in that it comprises the steps of: a) arranging the dental scan abutment so that the threaded end of the fixing axis is inserted in the retention housing; b) accommodate the abutment on the dental implant, or on the replica thereof, until the abutment connection means is connected to the anti-rotation means of the implant or its replica, thus adopting the operative position of engagement; c) rotate the head with respect to the main body along an axis parallel to the axial axis of the fixing axis until the threaded end of the fixing axis protrudes from the main body and is screwed into the threaded hole of the implant or its replica; performing the procedure outside the human or animal body.
    According to another characteristic of the procedure, the introduction of the threaded end into the retention housing of step a) is achieved either by pulling the head of the fixing means upwards, away from the main body, until the end
    threaded is retained in the retention housing, or simply as a result of having placed the abutment on the dental implant, or on its replica, contacting the threaded end of the shaft against a part of the implant, or its replica, and having occurred by reaction to the contact the automatic displacement of the threaded end until it enters the retention housing.
    Brief description of the drawings
    In the accompanying drawings, several embodiments of the scanning dental abutment object of the invention are illustrated by way of non-limiting example. In these drawings:
    Fig. 1 is a front view of a first embodiment of the abutment object of the invention in which the means for connecting to the implant are arranged internally in the lower end section of the main body; Fig. 2 is a longitudinal sectional view, according to a vertical cutting plane, of the pillar of Fig. 1; Fig. 3 is another view in longitudinal section, according to a vertical cutting plane, of the pillar of Fig. 1 but in an operative coupling position; Fig. 4 is a top plan view of the pillar of Fig. 1; Fig. 5 is a bottom view of the pillar of Fig. 1; Fig. 6 is a front view of the means of fixation to the implant (or its replica), shown in Fig. 1, according to an embodiment in which the fixing axis and the head are joined in solidarity forming a single body; Fig. 7 is a view of the means of fixation to the implant (or its replica) according to another embodiment of the abutment object of the invention, shown with the head and the upper end of the fixing axis partially sectioned according to a vertical cutting plane, in which the fixing shaft and the head are joined by a screwed joint; Figs. 8 and 9 show respective views in longitudinal section, according to a vertical cutting plane, of another embodiment of the pillar of the invention, in an operative fixation position and in an operative coupling position, respectively, in which the connection means to the implants are disposed internally in the lower end section of the main body and in which the fixation axis and the head are joined in solidarity; Fig. 10 is a longitudinal sectional view, according to a vertical cutting plane, of the pillar of Fig. 8 in the operative fixation position in which unlike Fig. 8, it is shown
    also the upper part of the external connection implant (or its replica) to which the abutment object of the invention is fixed; Fig. 11 is an elevation view partially sectioned along a vertical cutting plane, of the upper part of the external connection implant of Fig. 8 to which the abutment is fixed; Fig. 12 is a top plan view of the upper part of the implant of Fig. 11; Fig. 13 is a longitudinal sectional view, according to a vertical cutting plane, of another embodiment of the abutment object of the invention in the operative fixation position in which the upper part of the implant (or its replica) is also shown. internal connection to which the pillar object of the invention is fixed; Fig. 14 is a partially sectioned elevation view along a vertical cutting plane of the upper part of the internal connection implant shown in Fig. 13; Fig. 15 is a top plan view of the upper part of the implant of Fig. 14; and Figs. 16 and 17 show respective views in longitudinal section, according to a vertical cutting plane, of the embodiment of the pillar of the invention shown in Fig. 13 in an operative fixing position and in an operative coupling position, respectively, in which The means of connection to the implant are arranged externally in the lower end section of the main body and in which the fixing axis and the head are joined in solidarity.
    Detailed description of embodiments of the invention
    In Figs. 1-3, 8-9 and 16-17 show three embodiments of dental scan 1 pillars, of which 80 are mounted and fixed to dental implants or replicas thereof to provide the necessary information on the spatial position of the implants with respect to the jaw, its angulation and the radial angular position of the anti-rotation means 81 of the implants, obtained by intraoral scanning of the patient's oral cavity
    or of a reproduction of its jaw in which the replicas of the implants 80 are placed. Specifically, the pillars 1 of Figs. 1-3 and 8-9 are adapted to be mounted and fixed to implants 80 (or their replicas) as shown partially in Figs. 11 and 12, which comprises anti-rotation means 81 for external connection, while the pillars 1 of Figs. 16 and 17 are adapted for mounting and fixing to implants 80 (or their replicas) such as that of Figs. 14 and 15 in which the anti-rotation means 81 are internally connected. The dental scan pillars 1 may be made, for example, of polyether ether ketone, material known as peek (polyether ether ketone), stainless steel, zirconium, aluminum or other metal or plastics of similar performance. By way of orientation, the pillar 1 shown in Figs. 1, 2, 8 and 16 have an approximate length (measured in the vertical direction) of 10 mm.
    From now on, everything that is said in reference to dental implants 80 will be equally valid for the replicas of the implants, even if there is no explicit mention of them.
    In any of the embodiments shown, the dental scan pillar 1 basically comprises a main body 2 and fixing means 3, the latter individually represented in Figs. 6 and 7.
    The fixing means 3 are in turn formed by a fixing axis 4 and by a capping head 5 disposed at the upper end 7 of the fixing axis 4, while the lower end of the fixing axis 4 is a threaded end 6 provided with a threaded thread complementary to the internal thread of the threaded hole 82 (see Figs. 11 and 14) presented by the implant 80 to which the abutment 1 is adapted to be fixed.
    In the case depicted in Fig. 6, the head 5 and the fixing shaft 4 are jointly joined forming part of the same body, that is, the fixing means 3 has a monobloc structure. The head 5 and the fixing shaft 4 can be of the same material
    or of different materials even if they are permanently attached. On the other hand, in Fig. 7, fixing means 3 are shown in which the head 5 and the fixing axis 4 are two bodies joined by means of a threaded joint (see threaded thread of the upper end 7 of the fixing axis 4) . In addition to the threaded joint, it is contemplated that the head 5 and the fixing shaft can be joined (by the upper end 7) by means of an adhesive, pressure, riveted joint or a combination of threaded and adhesive connection.
    The fact that in both Fig. 4, Fig. 6 and Fig. 7, the head 5 has a smooth outer surface without holes, notches or fingerprints for fitting external tools. Thus, the head 5 has no hole for the passage of any screw to fix it to the implant 80, unlike in the scanning abutments known in the state of the art. In this way, the scanning pillar 1 avoids the noise and brightness problems generated during the scanning associated with the presence of through holes for the passage of a fixing screw in those pillars.
    With respect to the main body 2, it is formed by a body provided with an indicator of the radial angular position of the anti-rotation means 81 of the implant 80 to which the abutment 1 is fixed during scanning. Particularly, as seen in Figs. 1-3, 8-10, 13 and 1617, the external surface of the main body 2 comprises a recess in the form of a flat surface 27, parallel to the fixing axis 4, which constitutes the indicator of the radial angular position of the anti-means - rotation 81 of the implant 80. The position of the flat surface 27 is precisely related to the figure or geometry of the anti-rotation means 81 of the implant 80. In the examples shown, the flat surface 27 is limited upper and lower by two flat portions 28 inclined with respect to the flat surface 27 forming an obtuse angle thereto, particularly of 135 °, although it is also contemplated that said flat portions 28 may be arranged forming 90 ° with the flat surface 27.
    It is also appreciated that the main body 2 is provided with an axial hole 20 that crosses it vertically, from its lower section to its upper section. The axial hole 20 is configured for housing and sliding through the fixing axis 4 although in such a way that the fixing means 3 remain impermissively connected to the main body 2 (as long as the head 5 is attached to the upper end 7 of the fixing shaft 4).
    In Figs. 2-3, 8-9 and 16-17 it is observed that the axial hole 20 comprises a retaining housing 23 for the threaded lower end 6 of the fixing shaft 4, formed by a widening whose diameter is equal to or greater than the external diameter of the threaded lower end 6 and which is superiorly limited by a narrower section of axial bore 20 of diameter essentially equal to the diameter of the fixing shaft 4. Thus, the threaded lower end 6 can never accidentally slide (ie, if the user it is not expressly intended) upwards beyond the retention housing 23, being able to slide only between a retention position (which is also called the operative position of coupling of the abutment 1 to the implant 80, as will be explained later), represented in Figs. . 3, 9 and 17, in which the threaded end 6 is housed in the retaining housing 23, being immersed inside the main body, and an extreme position in which the threaded lower end 6 protrudes from the lower section of the main body 2 and its sliding down is limited by bumping the head 5 against the upper edge of the main body 2 (see Figs. 2, 8 and 16). The length of the retaining housing 23 is slightly longer than the length of the threaded end 6.
    In fact, the head 5 of the fixing means 3 has a diameter or a width greater than the diameter of the fixing axis 4 and equal to or greater than the diameter or width of the upper section of the main body 2, and is configured to be rotated manually (without tools) around the axial axis of the fixing axis 4 and printing said rotation in solidarity with the fixing axis 4 with respect to the main body 2. In addition to being able to rotate it, the head 5 can also be pushed down, in the direction approach the main body 2, or pull it up, away from the main body 2.
    In the embodiment shown in Figs. 2 and 3 it is important to emphasize that the narrowest section of axial bore 20 that limits the retention housing 23 superiorly is a section provided with a threaded thread 22 complementary to the threaded thread of the threaded end 6 of the fixing shaft 4 (they have the same thread pitch). This narrower threaded section of the axial hole 20 which is provided with the threaded thread 22 allows that if the user of the scanning abutment 1 so desires, the threaded end 6 can occupy and cross in the longitudinal direction said section by turning the head 5 in One way or another.
    Specifically, this embodiment of scan pillar 1 shown in Figs. 2 and 3 allows the user to completely remove the fixing shaft 4 of the main body 2 by the upper end of the latter, turning the head 5 in a certain direction, specifically in the opposite direction to the threaded end of the threaded end 6 in the threaded hole 82 of the implant 80. By rotating the head in this way, for example from the position shown in Fig. 3, the threaded end 6 will pass from the retaining housing 23 to the narrowest section immediately above, that is, to the section provided with thread filleting 22. Once this section is completely crossed, already pulling the head 5 upwards, the fixing shaft 4 will be completely removed from the main body 2 since the rest of the sections of the axial hole 20 are devoid of threaded thread and are of a diameter equal to or greater than the diameter of the fixing axis 4. It is understood that the diameter of the fixing axis 4 is that which has the fixing axis 4 just above ima of its threaded end 6.
    This option of complete extraction allows to deepen in the cleaning and sterilization of the components of the pillar 1 of scan. In addition, this configuration also ensures that the fixing shaft 4 cannot be completely accidentally removed from the main body 2 (that is, the components remain unmissably coupled), since for the total extraction it is necessary that the user expressly turn the head 5 in the proper direction, that is, it is not enough to simply pull the head 5 up trying to extract the fixing shaft 4 above the main body 2, it is necessary to turn it.
    The main body 2 is also provided with connection means 21 to the implant 80 which in turn is provided with anti-rotation means 81 and an internally threaded hole 82. The connection means 21 adopt a different configuration depending on whether they are implants 80 with anti-rotation means 81 for external connection (Figs. 11-12) or for internal connection (Figs. 14-15).
    In the case of the pillars 1 represented in Figs. 1-5 and 8-9, the connection means 21 to the implant are arranged internally in the lower end section of the main body 2 and are formed by a connection housing 24 arranged in the lower end part of the axial hole 20 of the main body 2 and below the retention housing 23, as seen particularly in Figs. 2-3 and 8-9. It is appreciated that the connection housing 24 has a diameter or width greater than the external diameter of the threaded end 6 of the connection shaft 4, since it is to be ensured that the threaded end 6 can be housed in the retaining housing located above the connection housing 24.
    The connection housing 24 is configured by a cavity whose inner walls reproduce the complementary geometry of the external walls of the anti-rotation means 81 of an external connection implant 80 such as that shown in Figs. 11 and 12, allowing the introduction and tight lateral engagement of the external connection anti-rotation means 81 in the connection housing 24 (see Fig. 10).
    Normally, the anti-rotation means 81 of the external connection implants 80 are usually formed by a regular polygonal base prism, such as a hexagonal prism in the examples shown in the figures, although they can also have a lobed geometric figure , battlements, channels or element also intended to block the rotation in this case between the implant 80 and the main body 2 of the dental abutment 1 of
    image7
    One way to ensure that the threaded end 6 is inside the retention housing is to allow the longitudinal displacement to occur on its own by contacting the threaded end 6 with the implant 80.
    It should be remembered at this point that the length of the retaining housing 23 (measured in the vertical direction, parallel to the axial direction of the fixing axis 4) is somewhat greater than the length of the threaded end 6, so that in the operating position coupling, threaded end 6 is not pressed.
    Next, the abutment 1 is placed on the implant 80 by testing or moving it slightly until the connection means 21 of the abutment 1 is connected with the anti-rotation means 81 of the implant 80, thus adopting an operative coupling position. In said position, the threaded end 6 remains in the retaining housing 23.
    In the case of the pillars 1 indicated for mounting and fixing to external connection implants 80, the connection housing 24 will have descended (together with the rest of the pillar 1) until it is received inside and in a manner adjusted to the anti- rotation 81 of the implant 80. For example, in the use of the pillars 1 shown in Figs. 1-5, and 8-9, the straight walls that make up the hexagonal connection housing 24 are arranged parallel to the respective faces of the hexagonal prism of the anti-rotation means 81 of the implant 80 of Figs. 11 and 12, whereby the anti-rotation function is active without the possibility of rotating the main body 2 with respect to the implant 80.
    On the other hand, in the case of the pillars 1 indicated for mounting and fixing to internal connection implants 80 represented in Figs. 16-17, it is the end zone of connection 25 of the main body 2 that will have descended (together with the rest of the pillar 1) and will have been introduced into the hole or cavity of polygonal section that constitutes the anti-rotation means 81 of the implant 80 of Figs. 14 and 15. In the example shown, in said operative coupling position, the straight external faces or walls that make up the hexagonal prismatic connection end zone 25 are arranged parallel to the respective walls that form the internal cone hexagonal section hole that constitutes the anti-rotation means 81 of the implant 80 of Figs. 14 and 15, thus activating the anti-rotation function of the main body 2 with respect to the implant 80.
    For guidance, Figs. 3, 9 and 17 would represent the operative position of coupling if the implant 80 had been drawn with its anti-rotation means 81 connected to the connection means 21 of the pillar 1 in the manner explained in the previous paragraphs, since the position of the fixing means 3 is practically the same.
    Then, once the abutment 1 is coupled to the implant 80, the first must be fixed to the second and adopt an operative fixation position, represented in Figs. 10 and 13. To adopt this operative fixing position, starting from the operative coupling position, the head 5 must be turned with respect to the main body 2 along an axis parallel to the axial axis of the fixing axis 4 until the threaded end 6 of the fixing shaft 4 protrudes from the main body 2 and is screwed into the threaded hole 82 of the implant 80 or its replica.
    To undo the fixation and undock the abutment 1 of the implant 80 after scanning, it will be enough to turn the head 5 in the opposite direction to the one before, so that the threaded end 6 will go up until leaving the threaded hole 82, and then with the fingers hold the main body 2 and separate it from the implant 80 by moving it up until the anti-rotation means 81 of the implant 80 are disconnected from the connection means 21 of the pillar 1.
    Thus, it has been demonstrated that the dental scan pillar 1 described above makes it possible to assemble and disassemble it with respect to the implant 80 without the help of any tool, which makes it especially useful inside the mouth of the patient, especially in situations of internal molars where the space for the use of tools is scarcer. The connection and fixing is reliable and simple, while avoiding the noise and brightness problems attributed to the presence of holes for the passage of a screw in the conventional scannable abutments of the prior art.
    The procedure explained in the preceding paragraphs describes the assembly and fixation of the dental scan pillar 1 to an implant 80 or to a replica thereof in general, for situations in which the assembly and fixation is carried out outside the human or animal body, for example, about replicas of implants inserted in the reproduction of a jaw, or inside the patient's mouth. However, it should be clarified that the procedure for mounting and fixing that is the subject of the present invention only contemplates the situation in which the procedure is performed outside the human or animal body.
    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
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    WO2016142562A1|2016-09-15|
    US11179227B2|2021-11-23|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3632368A1|2018-10-01|2020-04-08|Terrats Medical, S.L.|Cap part for dental scanning|US6168436B1|1997-06-18|2001-01-02|O'brien Gary|Universal dental implant abutment system|
    JP2002520085A|1998-07-13|2002-07-09|ノーベルビウカーレアーベー|Universal Impression Coping System|
    SE522965C2|2000-12-29|2004-03-16|Nobel Biocare Ab|Device for effecting position determination|
    US6986660B2|2002-06-04|2006-01-17|Zimmer Dental, Inc.|Retaining screw with rententive feature|
    US7014464B2|2003-12-19|2006-03-21|Niznick Gerald A|Multi-part abutment and transfer cap for use with an endosseous dental implant with non-circular, beveled implant/abutment interface|
    ES2557555T3|2007-03-19|2016-01-27|Straumann Holding Ag|Combination of a pillar and a two-part screw|
    US8038442B2|2007-04-23|2011-10-18|Nobel Biocare Services Ag|Dental implant and dental component connection|
    KR101056357B1|2009-07-08|2011-08-12|주식회사 메가젠임플란트|Impression Coping for Implant Procedures|
    CA2833215C|2011-05-16|2018-02-27|Biomet 3I, Llc|Temporary abutment with combination of scanning features and provisionalization features|
    EP2570097A1|2011-09-14|2013-03-20|Dentsply IH AB|A dental component, a dental fixture and a dental implant|
    US20140113252A1|2012-10-24|2014-04-24|William Y.S. Hung|Ankylos Attachment Complex |
    DE202015000801U1|2015-01-26|2015-02-25|Nt-Trading Gmbh & Co. Kg|Scanbörpersystem for determining a positioning and alignment of a dental implant|WO2019122354A1|2017-12-22|2019-06-27|Elos Medtech Pinol A/S|A dental implant analog|
    法律状态:
    2017-07-10| FG2A| Definitive protection|Ref document number: 2583904 Country of ref document: ES Kind code of ref document: B1 Effective date: 20170710 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201530304A|ES2583904B1|2015-03-10|2015-03-10|Dental abutment scan and procedure for mounting and fixing to a dental implant or a replica thereof|ES201530304A| ES2583904B1|2015-03-10|2015-03-10|Dental abutment scan and procedure for mounting and fixing to a dental implant or a replica thereof|
    US15/533,871| US11179227B2|2015-03-10|2016-03-03|Dental scanning post and method for the mounting and fixing thereof on a dental implant or a replica of same|
    ES16709985T| ES2809532T3|2015-03-10|2016-03-03|Scan dental abutment|
    PCT/ES2016/070137| WO2016142562A1|2015-03-10|2016-03-03|Dental scanning post and method for the mounting and fixing thereof on a dental implant or a replica of same|
    EP16709985.2A| EP3269324B1|2015-03-10|2016-03-03|Dental scan abutment|
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