• 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 implant with folding fins. The present invention relates to a dental implant that has an anchoring system consisting of deployable flaps driven by an insertion screw; and it is particularized to comprise the following elements: an implant body, comprising an implant-abutment connection zone, an external threading area, at least one pair of outlet orifices and an internal threading area; an anchor, comprising at least one pair of deployable fins and an upper hole an insertion screw, comprising a head with hexagonal internal connection, a shank and a thread; where the insertion screw is positioned in the upper hole of the anchor and by means of threading it pushes said anchor to lower inside the body of the implant and to the exit of the deployable flaps through the exit orifices. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2685982A1
    申请号:ES201731459
    申请日:2017-12-22
    公开日:2018-10-15
    发明作者:Keila LOVERA PRADO
    申请人:Keila LOVERA PRADO；
    IPC主号:
    专利说明:

    5 SECTOR OF THE TECHNIQUE
    The present invention relates to a dental implant that has an anchoring system consisting of folding flaps actuated by means of an insert screw. Likewise, the present invention discloses the uses and advantages that this dental implant offers
    10 with respect to other products in the sector.
    STATE OF THE TECHNIQUE
    It is now recognized that dental implants are designed medical devices
    15 to replace the root of a tooth that is no longer present for any reason, as well as having the function of keeping the artificial tooth in place. Undoubtedly they are a safe and lasting solution to the loss of one or several teeth. That is why innumerable types of dental implants and placement techniques have been developed, all of them aimed at trying to meet the medical needs that may
    20 present each patient.
    Most dental implants are made of titanium, for the contribution they offer in the osseointegration process. Another important property is biocompatibility, its mechanical properties and high corrosion resistance.
    25 Another characteristic that is widely accepted today is the surface roughness / porosity of an implant, which is considered a determining factor in the bone integration process.
    30 Another requirement that is highly appreciated in dental implants is their primary stability, which is also essential for an optimal long-term osseointegration process. Once this stability is achieved, its quality is important, as quickly and biomechanically strong as it may be, depending in most cases on the presence of adequate anchoring systems.


    Taking into account the foregoing, the inventor of the present invention has developed a new dental implant that has an anchoring system consisting of folding flaps actuated by means of an insert screw. Additionally, said dental implant has a trabecular shaped porous structure, located particularly in the
    5 body of it.
    BRIEF EXPLANATION OF THE INVENTION
    The present invention consists of a dental implant with deployable fins characterized
    10 because it comprises the following elements: a) implant body, which comprises an implant-abutment connection zone, an external threading zone, at least a pair of exit holes and an internal threading zone, b) anchoring, which comprises at least a pair of fins and an upper hole,
    C) insertion screw, which comprises a head with hexagonal internal connection, a rod and a thread, where the insertion screw is positioned in the upper hole of the anchor and by means of threading pushes said anchor down through the inside of the body of the implant, allowing the exit of the folding wings through the exit holes.
    In a preferred embodiment of the present invention, the holes that make up the pair of outlet holes in the implant body are facing each other, that is to say in opposite positions of one another, so that they correspond to the arrangement of the folding anchor fins.
    In the present invention, the body of the implant is characterized in that a porous structure of trabecular shape is located in the outer threading area. In a more preferred embodiment, the porous structure is in the inter-threaded spaces of the external threading area.
    30 It is important to note that the porous structure is highly osteoconductive, thus allowing rapid invasion by vascularized fibrous tissue, favoring the incorporation of the surrounding bone 3 to 5 times more than in other rough surfaces. The action of the pores results in a double effect. On one side,
    35 produces a mechanical coupling with the bone and on the other has a biological effect


    exerting a direct and indirect influence on the cells and their metabolism. The preosteoblasts show a kind of "poro-philia" and the gene expression, differentiation and matrix deposition that will mineralize depends on the signals it receives from the surface.
    In an even more preferred embodiment of the present invention, the outer thread zone is a double thread, this allows the distance between the thread pitch to be increased, less bone removed during implant insertion, we also reduce the heat generated and we increase the insertion torque in low density bones.
    In another preferred embodiment of the present invention, the outer threading zone has a thread pitch of between 0.5-2 mm, more preferably the thread pitch is 1 mm.
    An important aspect of the present invention is that the implant body has a
    15 self-drilling thread at its lower end. This self-drilling thread has the ability to change the orientation of the implant during the placement process, thus allowing a correct parallelism between implants and optimizing its placement.
    In a particular embodiment of the present invention, the implant-abutment connection zone
    20 has an angle between 10 ° -20 °, more preferably the angle is 16 °. When 2 metal conical parts fit, each of the parts having an angle of 8 ° or less, a wedge effect is produced due to friction between the 2 walls, which results in a mechanical seal.
    A characteristic of the present invention is that the implant-abutment connection area is by fixation with a morse cone, which allows the reduction of the microgap between the implant / abutment connection since it increases the contact surface between them, of this In this way, bacterial microfiltration is minimized, so that the reabsorption of bone tissue decreases, keeping soft tissues stable with a better long-term aesthetic result. The
    30 cone morse connection absorbs the vibration and pressure exerted on the abutment avoiding the loosening of the prosthetic screw.
    As indicated above, the anchor comprises at least one pair of fins and an upper hole. The fins slide along the inside of the implant body to the extent
    35 that the insertion screw exerts force on said anchor. In a preferred embodiment, the


    Anchoring is made of titanium due to its high mechanical resistance, which allows the deployment of its fins by the action of the insertion screw, as well as the folding of said fins if it is necessary to remove the implant.
    In a preferred embodiment of the present invention, at least one pair of anchor finsThey will make their anchorage in the cortical wall of the jaw or maxilla as the case may be.
    It is important to emphasize in the present invention that both the turns that make up the external threading area of the implant and the folding wings constitute elements
    10 primary stabilization, especially in slightly dense type (IV) bones, which have a thin cortical layer. Dental implants with reinforced fixation elements are required for this type of bone, especially towards the middle-high area of the implant and not especially at its lower end. That is why also in this area, in a preferred embodiment of the present invention, the porous structure is
    15 trabecular that facilitates greater proliferation and cell migration thus allowing the growth of bone tissue inside.
    In relation to the upper hole, this allows or enables the connection between the anchor itself and the insertion screw.
    In relation to the insertion screw, as indicated above, it comprises a head with hexagonal internal connection, a rod and a thread. In the case of the hexagonal internal connection, this facilitates the manipulation of the screw, both in its insertion and in the extraction of the dental implant, by means of the corresponding instruments. At
    25 case of the stem, this is located within the upper hole of the anchor, while the thread allows the insertion screw up and down through the internal threading area of the implant body, leading the pin through its interior outwards of the implant
    It is very important to emphasize that the configuration of the anchor-screw insertion assembly
    30 allows both the placement, by threading of the dental implant, as its removal or removal, by unscrewing, since in the threading operation the head with hexagonal internal connection of the insertion screw pushes the anchor into the implant, while, in the opposite operation, the screw thread pushes the anchor towards the top
    or outside of the implant.


    As for the manufacturing process of the dental implant object of the present invention, it will be by additive (addition of material by layers) by means of a 3D printer. The concept of 3D printing has evolved additive manufacturing technology, from a 3D CAD file. It is a good alternative when the geometry of the object to be manufactured is very complex and its size is relatively small, as is the case with the dental implant of interest.
    Description of the drawings
    In order to complement the description given above and to facilitate a better understanding of the characteristics of the present invention, the following figures are attached as an integral part of the description:
    Figure 1. Represents a schematic view of the different elements that make up the dental implant object of the present invention.
    Figure 2. Represents a schematic view of the dental implant object of the present invention that has a trabecular porous structure in the inter-threaded spaces of the external threading area.
    Figure 3. Represents a top view of the implant body.
    Figure 4. Represents a schematic view corresponding to a cross section of the implant body.
    Figures 5A and 5B. They represent a schematic view of the dental implant with all the elements that make it up. A) Dental implant in non-mounted position. B) Dental implant in assembled position.
    Preferred Embodiment of the Invention
    According to an embodiment of the present invention, Figures 1-4 show the dental implant (1) object of the present invention, through the main elements that comprise it. Specifically, the dental implant (1) with folding fins (8) is characterized in that it comprises the following elements:


    a) Implant body (2), which comprises an implant-abutment connection zone (3), an external threading zone (4), at least one pair of exit holes (5) and an internal threading zone (6 ), b) anchor (7), comprising at least one pair of folding flaps (8) and an upper hole (9), c) insert screw (10), comprising a head (11) with internal hexagonal connection, a rod (12) and a thread (13), where the insertion screw (10) is positioned in the upper hole (9) of the anchor (7) and by threading pushes said anchor (7) down through the inside of the Implant body (2) and at the exit of the folding fins (8) through the exit holes (5).
    As shown in Figure 2, the dental implant (1) has a porous structure (14) in the upper-middle area of the implant. Specifically in the area of external threading (4) is a porous structure (14) trabecularly. Specifically, said porous structure (14) is located in the inter-threaded spaces of the external threading zone (4). This porous structure (14), located in the upper-middle area of the implant facilitates the osseointegration process of said dental implant (1). Additionally, it is appreciated that the implant body (2) has a self-drilling thread (15) at its lower end.
    Figure 3 represents a top view of the implant body, in which the implant-abutment connection area (3) and the internal threading area (6) can be seen.
    A schematic view corresponding to a cross section of the body of the dental implant (1) is shown in Figure 4. In it it is possible to appreciate a pair of exit holes (5), an external threading zone (4) and an internal threading zone (6). The external threading zone (4) is a double thread.
    In Figure 5A it can be seen how the insertion screw (10) is positioned in the upper hole (9) of the anchor (7), before carrying out the assembly of the dental implant (1).
    When performing the threading operation, the anchor (7) is forced to lower through the inside of the implant body (2), by the downward pushing action performed by the insertion screw (10), so that the folding wings (8) They exit through the exit holes (5) towards the cortical area of the jaw or maxilla where they will be anchored. The disposition


    which adopt the different elements of the dental implant (1) after said threading operation is shown in Figure 5B.

    权利要求:
    Claims (1)
    [1]
    1-Dental implant (1) with folding fins (8) characterized in that it comprises
    following elements:
    a) implant body (2), comprising an implant-abutment connection area (3),
    an external tapping zone (4), at least a pair of outlet holes (5) and a
    internal threading zone (6),
    b) anchor (7), comprising at least one pair of folding fins (8) and a
    upper hole (9),
    c) insert screw (10), comprising a head (11) with internal connection
    hexagonal, a rod (12) and a thread (13), where the insertion screw (10) is positioned in the upper hole (9) of the anchor (7) and by means of threading pushes said anchor (7) down the inside of the implant body
    (2) and at the exit of the folding fins (8) through the exit holes (5).
    2-Dental implant (1) with folding flaps (8) according to claim 1, characterized in that a porous structure is located in the external threading zone (4)
    (14) in a trabecular way.
    3-Dental implant (1) with folding flaps (8) according to claim 1, characterized in that the porous structure (14) is located in the inter-threaded spaces of the external threading area (4).
    4-Dental implant (1) with deployable fins (8) according to claim 1 characterized in that the outer thread zone (4) is a double thread.
    5-Dental implant (1) with deployable fins (8) according to claim 1 characterized in that the external thread zone (4) has a thread pitch of between 0.5-2 mm.
    6-Dental implant (1) with folding fins (8) according to claim 1 characterized in that the implant body (2) has a self-drilling thread (15) at its lower end.

    7-Dental implant (1) with deployable fins (8) according to claim 1 characterized in that the implant-abutment connection area (3) has an angle of between 10 ° 20 °.
    5-Dental implant (1) with deployable fins (8) according to claim 1 characterized in that the implant-abutment connection area (3) is by fixation with morse cone.

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    同族专利:
    公开号 | 公开日
    ES2685982B2|2019-08-09|
    EP3730090A1|2020-10-28|
    EP3730090A4|2021-10-06|
    WO2019122473A1|2019-06-27|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3579831A|1969-03-05|1971-05-25|Irving J Stevens|Bone implant|
    US20100304333A1|2009-06-02|2010-12-02|Ali Babazadeh Ghavidel|Expandable dental implant|
    DE3819172A1|1988-06-04|1989-05-18|Toegel Kurt|Intraosseous, intramobile dental implants with base-widening spreading devices which can be anchored in the jaw|
    US8486120B2|2010-05-11|2013-07-16|Warsaw Orthopedic, Inc.|Implant with deployable stabilizers|
    US10299895B2|2010-09-09|2019-05-28|Hankookin, LLC|Fabrication and installation of a dental implant|
    EP3413832A2|2016-01-29|2018-12-19|Tekin, Fevzi Levent|Dental implant having a mechanism which increases bone attachment|EP3621557A4|2017-05-12|2021-02-24|Cutting Edge Spine LLC|Implants for tissue fixation and fusion|
    法律状态:
    2018-10-15| BA2A| Patent application published|Ref document number: 2685982 Country of ref document: ES Kind code of ref document: A1 Effective date: 20181015 |
    2019-08-09| FG2A| Definitive protection|Ref document number: 2685982 Country of ref document: ES Kind code of ref document: B2 Effective date: 20190809 |
    优先权:
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    ES201731459A|ES2685982B2|2017-12-22|2017-12-22|DENTAL IMPLANT WITH FOLDING FINS|ES201731459A| ES2685982B2|2017-12-22|2017-12-22|DENTAL IMPLANT WITH FOLDING FINS|
    EP18892697.6A| EP3730090A4|2017-12-22|2018-12-12|Dental implant with foldable fins|
    PCT/ES2018/070801| WO2019122473A1|2017-12-22|2018-12-12|Dental implant with foldable fins|
    BR112020012740-0A| BR112020012740A2|2017-12-22|2018-12-12|dental implant with foldable tabs|
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