• 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:
    A dental implant system (1) for the bone regeneration of a bone defect (2) of a jawbone (3) comprising an implant (4) to be anchored in the jawbone (3) with a threaded bore (5), a foil (6) for covering the bone defect (2) and of the implant (4), a fastening screw (7) for positionally stable attachment of the film (6) relative to the implant (4), wherein in mounting position a screw bolt (8) of the fastening screw (7) through the film (6) protrudes and with the Threaded hole (5) of the implant (4) can be screwed, wherein a spacer element (9) between the implant (4) and the film (6) can be arranged, wherein in mounting position of the bolt (8) through the spacer element (9) protrudes.
    公开号:AT515117A4
    申请号:T280/2014
    申请日:2014-04-15
    公开日:2015-06-15
    发明作者:
    申请人:Sonnleitner Dietmar Dr；
    IPC主号:
    专利说明:

    The invention relates to a dental implant system for the bone regeneration of a bone defect site of a jaw bone comprising an implant to be anchored in the jawbone with a threaded bore, a foil for covering the bone defect site and the implant, and a fastening screw for positionally stable attachment of the foil relative to the implant, wherein in the mounting position a screw bolt the fastening screw protrudes through the film and can be screwed to the threaded bore of the implant.
    Dental implant systems that promote bone regeneration of a bone defect site using membrane technology are already known. Such dental implant systems comprise an implant which is anchored in the jaw bone in the area of the bone defect, a foil or membrane enabling bone regeneration, which is stretched over the bone defect site and thus also over the implant and secured to the jawbone, and a fastening screw whose screw bolts are in the Attachment and position-stable attachment of the film relative to the implant protrudes through the film and is screwed to a threaded bore of the implant. This creates a cavity between the foil and a surface of the bone defect site, in which bone material and, in the case of natural teeth, the periodontium can regrow. For favorable bone regeneration, the lumen can also contain bone replacement materials, medicament carriers, growth factors, or other healing and ossifying and protective substances. Depending on the design of the bone defect site, in the case of the known dental implant systems when the film or membrane is applied, unwanted wrinkling or cratering can occur, which in turn can lead to an undesired surface structure of the regenerated jawbone.
    The object of the invention is therefore to provide an improved dental implant system for the bone regeneration of a bone defect site of a jawbone, which facilitates in particular the application of the film to the bone defect site and allows an improved surface structure of the regenerated bone material.
    This object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.
    According to the invention it is thus provided that a spacer element between the implant and the film can be arranged, wherein in the mounting position of the bolt protrudes through the spacer element. By providing a spacer between a face-side implant head of the implant and the foil to be tensioned via the bone defect site, an undesirable difference in level between a first level of the implant head and a second level of edge of the bone defect site can be easily compensated depending on the configuration of the bone defect site. The bolt protrudes through the spacer element and can be screwed to an internal thread of the threaded bore of the implant. Due to the fact that the bolt protrudes through the spacer element without engagement with the spacer element, the spacer element does not rotate with the fastening screw during the positionally stable fastening of the film, as a result of which the film is not twisted or wrinkled. Thus, the proposed dental implant system can achieve two major advantages. On the one hand can be avoided by the flexible adaptation to given differences in level between the implant head and edge of the bone defect site unwanted cratering of the film and on the other hand, an undesirable wrinkling in the film in which the bolt protrudes through the film can be avoided because the Film is not twisted or wrinkled in its position-stable attachment.
    According to a preferred embodiment it can be provided that the spacer element for the passage of the screw bolt through a through hole having a bore diameter which is larger than an outer diameter of the screw bolt. As a result, the bolt protrudes through the spacer without contact and is not in engagement with the screw during the screwing with the threaded bore of the implant
    Spacer element. This already represents a simple rotation for the spacer.
    A particularly preferred embodiment provides that the spacer element on the implant can be arranged in a rotationally locked manner. Preferably, it may be provided that as a rotation lock on the spacer element projections are arranged, which are insertable into corresponding recesses of the implant. A rotationally locked arrangement of the spacer element on the implant ensures that the spacer element does not rotate with the fastening screw during the attachment of the foil relative to the implant, that is to say during the screwing of the fastening screw to the implant. It can thus be provided an anti-rotation, which prevents unwanted wrinkling in the attachment of the film.
    Particularly advantageous is that embodiment of the invention in which the spacer element is substantially hollow cylindrical, preferably designed as a substantially tubular sleeve. In this case, the spacer element can be designed as a particularly easy to manufacture spacer sleeve.
    It can also be provided that the spacer element is formed substantially conical or frusto-conical. As a result, in particular an enlarged support surface for the film can be formed on the spacer element and the anatomical shape of a natural root can be simulated.
    According to a preferred embodiment it can be provided that the fastening screw has a screw head, wherein the film between the spacer element and screw head can be clamped. In this case, the screw head of the fastening screw can form a so-called healing post serving as a placeholder for a post to be attached after the bone regeneration post, which holds a channel through the gums in the oral cavity open.
    In order to further reduce wrinkling of the film, it can preferably be provided that the screw head is provided with a friction-reducing coating, preferably with a Teflon coating, on a screw head surface facing in the mounting position of the film. It can of course also be provided that the film is provided at a mounting position in the screw head facing the film surface at least in a contact region with the screw head with a friction-reducing coating, preferably with a Teflon coating.
    In order to also allow a flexible configuration of the height of the healing post to be used, it can be provided according to a further preferred embodiment that the dental implant system comprises a substantially tubular mounting sleeve through which protrudes into the mounting position of the bolt, wherein the film between the spacer element and mounting sleeve is clamped , The fastening sleeve can in this case form the healing post, whereby different heights of healing posts can be provided in a simple manner.
    Preferably, it may be provided that the fastening sleeve for passing the bolt has a through hole with a hole diameter which is larger than an outer diameter of the bolt. In this case, the bolt protrudes without contact through the mounting sleeve, whereby the mounting sleeve does not rotate with the fastening screw during attachment of the fastening screw on the implant and thus there is no undesirable twisting or wrinkling of the film.
    A particular embodiment provides that on the mounting sleeve at a facing in the mounting position of the film sleeve surface at least one - is arranged for fixing the position of the film relative to the mounting sleeve - preferably substantially thorn-like design. This can prevent twisting or wrinkling of the film.
    According to a particularly preferred embodiment it can be provided that the film is substantially completely absorbable. By doing that, the foil or
    Total membrane is completely absorbable in the body, for example, by breaking down by hydrolysis in the body, eliminating the need to perform another operation to remove the film after the bone regeneration.
    Particularly advantageous is that embodiment in which the film is a, preferably pre-bonded, multilayer film comprising a shaping mold layer for molding the film to the bone defect site and at least one cover layer for covering the bone defect site, wherein the mold layer and the at least one cover layer substantially are completely absorbable. In this case, the film comprises a shaping shaping layer which serves to mold the film to the bone defect site and through which a cavity can be formed between the bone defect site and the film so that bone growth can take place in this cavity. The cavity is maintained by the space-forming and space-retaining mold layer until the cavity is filled by renewable bone material. In addition, the film of this embodiment comprises at least one cover layer for covering the bone defect site. This cover layer, which may be formed, for example, as a membrane, serves to cover and seal the bone defect site in order to prevent the penetration of soft tissue into the bone defect site. In order to further improve the attachment of the film and the sealing of the bone defect site, the at least one cover layer can also be designed so that it adheres to a gum surrounding the bone defect site. The individual layers of such a pre-bonded film (molding layer and at least one cover layer) may be bonded together mechanically and / or chemically.
    According to a preferred embodiment it can be provided that the mold layer and the at least one cover layer are substantially completely absorbable at different time intervals. For example, by designing the molding layer and the at least one cover layer, it can be achieved that the molding layer absorbs faster than the at least one covering layer. In general, different degrees of absorbability result in the
    Form layer and the at least one cover layer great freedom in the design of the film in terms of their absorbability.
    It can be provided that the film as a whole in a period of about 3 to 12 months, preferably about 4 to 6 months, is substantially completely absorbable. This is the period of time within which bone reconstruction usually takes place.
    In order to allow a good Anformung at the bone defect site and a stable cavitation between the film and bone defect site, it can be provided that the mold layer is stiffer than the at least one cover layer is formed. The higher stiffness of the mold layer serves to form a cavity for the bone structure and to maintain this cavity for the time required for bone regeneration. By virtue of the lower rigidity of the at least one cover layer compared with the molding layer, good coverage and sealing of the bone defect site can once again be achieved.
    It can preferably be provided that the mold layer, if appropriate together with the at least one cover layer, is formed mechanically and / or thermally and / or chemically deformable. Thus, in particular, the mold layer may be formed as a substantially dimensionally stable layer which can be deformed under mechanical, thermal or chemical influence and in turn has sufficient dimensional stability after this deformation in order to maintain the cavity to be formed for bone growth for the required period of time. The at least one cover layer may be flexible and preferably elastic to allow good coverage and sealing of the bone defect site.
    A mechanical deformation can be done for example by bending with a pair of pliers. This is a suitable method of molding especially for relatively thin mold layers (e.g., in the range of about 0.10 mm to about 0.5 mm). For thicker mold layers (e.g., thicker than about 0.5 mm), thermal deformation of a mold layer for molding may be desirable. A corresponding thermal deformation can be achieved, for example, by means of a thermostable with a hot tip or surface, over heated prefabricated models or in a hot water bath with sterile saline solution. For a good absorbability of the proposed film it can be provided that the at least one cover layer at least partially, preferably substantially completely, consists of a bioresorbable collagen material. It may be provided that the bioresorbable collagen material comprises type I collagen and / or type III collagen. The collagen material may be derived from, for example, bovine Achilles tendons. For a good resorbability of the proposed film can also be provided that the mold layer at least partially, preferably substantially completely, consists of a bioresorbable polymer material. The bioresorbable polymer material may also be a co-polymer material.
    A particular embodiment provides that the bioresorbable polymer material comprises lactic acid, preferably L-lactic acid, and / or derivatives thereof. It is advantageous if the proportion of lactic acid in the bioresorbable polymer material is at least 70%, preferably about 80% to 95%, particularly preferably substantially 82%.
    In addition, it may be provided that the bioresorbable polymer material comprises glycolic acid. It is advantageous if the proportion of glycolic acid in the bioresorbable polymer material is at most 30%, preferably about 15% to 20%, particularly preferably substantially about 18%. Depending on the composition of the mold layer can be achieved that the mold layer is substantially dimensionally stable and yet substantially completely absorbable.
    In a further preferred embodiment it can be provided that the mold layer and the at least one cover layer are different
    Have surface expansions. It can be provided that the mold layer occupies a smaller surface area than the at least one cover layer. If the at least one covering layer covers the shaping layer due to its smaller areal extent, a particularly good covering and thus also sealing of the bone defect site can be achieved.
    It can preferably be provided that the at least one covering layer and / or the shaping layer is or are formed substantially continuous over the entire surface. A favorable for the Anformung to the bone defect site contour of the film can be achieved for example by appropriately cutting the film.
    However, it is particularly favorable if the shaping layer has a shaped structure for molding onto the bone defect site. It can be provided that the shape structure at least partially a convex and / or concave curved edge and / or at least partially has a convex and / or concave curved shape. In other words, the shape structure can, for example, have planar-convexly and / or concavely-curved projections-and thus have a convexly and / or concavely curved edge. Alternatively or additionally, the shape structure as a whole may have a corresponding convex and / or concave curved shape.
    It is particularly advantageous if the mold structure has at least one strut-shaped molding element. The strut-shaped or flap-shaped Anformelemente can be shaped like a bow over the bone defect site and allow any cavity shape.
    Particularly advantageous is that embodiment of the invention in which the mold structure is formed substantially lattice-shaped. The lattice-shaped mold structure in this case forms a reinforcing grid which allows the formation of a variety of arbitrary cavity shapes.
    It can also be provided that the mold structure is formed by at least one reinforcement of the mold layer. In particular, when the mold layer is applied in the form of a hardening liquid or a hardening gel on the at least one cover layer, it is favorable if the mold structure can be achieved only by the application of more liquid or gel in the region of the mold structure. In this case, for example, the mold layer may have different thicknesses.
    A particular embodiment provides that the film has a carrier layer for at least one substance to be arranged or arranged thereon. The substances to be arranged or arranged on the carrier layer may be medicaments, growth factors and / or other substances which promote and protect healing and bone formation. The carrier layer may preferably be arranged on a side of the foil facing the bone defect site and consist at least partially, preferably substantially completely, of a bioresorbable collagen material.
    It can also be provided that corresponding substances are applied directly to the mold layer and / or the at least one cover layer. It may also be provided that the side or surface of the film to be turned towards a bone defect site itself serves as a support for the substances described above, for example by having this side or surface of the film having a corresponding roughness.
    Depending on the application, the film or membrane can also be provided precut and / or preformed. In this case, for example, a desired cut and / or a desired 3D deformation of the film can take place according to a data processing-based planning.
    In general, the individual components of the proposed
    Depending on the application, the dental implant system can be individually planned and manufactured using data processing, for example, milled.
    Further details and advantages of the present invention will be explained with reference to the following description of the figures. Show
    1a is a side view of an implant,
    1b is a plan view of the implant of Figure 1a,
    2a is a side view of the proposed spacer element, which is designed as a spacer sleeve,
    2b is a plan view of the spacer element of Figure 2a,
    Fig. 3a is a side view of a film for covering a
    Bone defect site and an implant,
    3b is a plan view of the film of Figure 3a,
    4 is a side view of a fastening screw,
    5 shows an embodiment of the proposed dental implant system during attachment to a bone defect site of a jawbone,
    6 to 8 several embodiments of the proposed dental implant system, each arranged at a bone defect site of a jawbone,
    9 is a sectional view through a regenerated bone defect site,
    10 shows an embodiment of a multilayer film in an exploded perspective view,
    11 is a side view of the multilayer film of Figure 10,
    12-16 are plan views of various embodiments of multilayer films and
    17-24 several embodiments of multilayer films in perspective exploded views.
    FIG. 1 a shows a side view of an implant 4 of a proposed dental implant system 1, and FIG. 1 b shows a plan view of the implant 4. Starting from the implant head 28 of the implant 4, the implant 4 has a threaded bore 5 which is provided with an internal thread 23.
    Figure 2a shows a side view of a spacer element 9 of a proposed dental implant system 1 and Figure 2b shows a plan view of the spacer element 9. The spacer element 9 is formed in this example as a spacer sleeve and has a through hole 10 with a bore diameter 11.
    3a shows a side view of a film 6 of a proposed dental implant system 1 and Figure 3b shows a plan view of the film 6. The film 6 has a hole 24 through which a bolt 8 of a fastening screw 7 can be passed in the mounting position.
    FIG. 4 shows a side view of a fastening screw 7 of a proposed dental implant system 1. The fastening screw 7 comprises a screw head 15 and a bolt 8 arranged thereon, which is provided with a thread 25. Bolt 8 with thread 25 and threaded hole 5 with internal thread 23 are dimensioned so that the thread 25 of the bolt 8 with the internal thread 23 of the threaded hole 5 can be screwed. The screw bolt 8 has an outer diameter 12 which is smaller than the bore diameter 11 of the through hole 10 of the spacer element 9. The screw head 15 has a tool recess 26, into which a corresponding tool can engage, in order to screw the fastening screw 7 to the implant 4 such as a screwdriver or hexagon allen wrench.
    FIG. 5 shows a sectional view through a bone defect 2 of a jaw bone 3, wherein an implant 4 is anchored in the region of the bone defect 2 in the jaw bone 3. In order to enable bone regeneration in the area of the bone defect 2, a membrane or film 6 is stretched over the bone defect 2 and thus also over the implant 4 and fixed to the jawbone 3 to form a cavity 27 between bone defect 2 and foil 6 in which the jawbone 3 can regenerate. Depending on the formation of a bone defect site 2 and anchoring of the implant 4, however, different level differences between a first level of the implant head 28 of the implant 4 and a second level of an edge 32 of the
    Bone Defect 2 result. In order to obtain a uniform bone growth and a desired surface of the regenerated jaw bone 3 despite such a difference in level, a spacer 9 is provided, which is arranged between the implant 4 and foil 6, just to compensate for this difference in level. For positionally stable attachment of the film 6, the screw bolt 8 of a fastening screw 7 is now passed through the film 6 or a corresponding hole 24 of the film 6 and through the through hole 10 of the spacer element 9 and screwed to the threaded hole 5 of the implant 4. The through hole 10 of the spacer 9 has a bore diameter 11 which is larger than an outer diameter 12 of the bolt 8 (see also Figure 2b and Figure 4). As a result, the bolt 8 is not engaged with the spacer element 9 during the screwing of the fastening screw 7, and the spacer element 9 does not rotate with the fastening screw 7. In the example shown, furthermore, a screw head surface 16 of the screw head 15 of the fastening screw 7 facing the film 6 is provided with a friction-reducing coating, for example with a Teflon coating. As a result, co-rotation of the film 6 can be avoided during its positionally stable attachment by pinching between the screw head 15 and spacer element 9, resulting in no further undesirable wrinkling of the film 6 in Einklemmbereich. Alternatively or additionally, a friction-reducing coating can also be provided on a film surface 17.
    FIG. 6 shows the dental implant system 1 of FIG. 5 after the fastening screw 7 has been screwed to the implant 4. The spacer element 9 provided permits uniform coverage of the bone defect 2 with the foil 6, without, for example, producing unwanted wrinkles or craters in the foil 6 , In addition to clamping the film 6 between the screw head 15 and spacer element 9, the film 6 is anchored by means of appropriate fastening devices 40 on the jaw bone 3. Both
    Fasteners 40 may be, for example, metal or resorbable nails, pins or screws that are secured through the film 6 to the jawbone 3. Alternatively, the film 6 can also be glued to the jaw bone 3.
    FIG. 7 shows a further example of a proposed dental implant system 1 in a sectional view through a jawbone 3. In this example, the spacer element 9 has a conical or frustoconical lateral surface, by means of which an enlarged support surface for the foil 6 can be provided and the anatomical root shape can be reproduced , In addition, a fastening sleeve 18 is provided, which holds a channel through the gum to the oral cavity and which has a through hole 19 with a hole diameter 20 which is larger than an outer diameter 12 of the bolt 8 of the fastening screw 7. Thus, the external thread of the bolt 8 during the screwing of the fastening screw 7 with the mounting sleeve 18 is not engaged, causing the mounting sleeve 18 does not rotate with the mounting screw 7. As a result, co-rotation of the film 6 can be avoided during its positionally stable attachment by clamping between the mounting sleeve 18 and spacer element 9, whereby it subsequently comes to no unwanted wrinkling of the film 6 in Einklemmbereich. On a sleeve surface 21 of the fastening sleeve 18 facing the film 6, furthermore, mandrel-like extensions 22 are arranged, which penetrate the film 6 and thus represent a further securing against rotation for the film 6.
    FIG. 8 shows a further exemplary embodiment of a proposed dental implant system 1 with a spacer element 9, a fastening sleeve 18 and a film 6 clamped between spacer element 9 and fastening sleeve 18. In this example, the spacer element 9 is arranged rotationally locked on the implant 4 by protrusions 13 projecting from the spacer element 9 engage in corresponding recesses 14 on the implant 4. The film 6 is glued in this example at its edge regions on the jaw bone 3.
    9 shows a jaw bone 3 with anchored implant 4 after the bone regeneration of the jaw bone 3 in the cavity 27. After the bone regeneration, the fastening screw 7, the spacer element 9 and optionally the film 6 and the mounting sleeve 18 are removed and a passage post 29 arranged on the implant 4, which projects beyond the gum 31 into an oral cavity and to which a dental prosthesis 30 can be attached.
    Figure 10 shows an exploded perspective view of a proposed pre-bonded multilayer film 6. The film 6 comprises a mold layer 33 and two cover layers 34a and 34b. The mold layer 33 is stiffer than the cover layers 34a and 34b and has a mold structure 35. The mold structure 35 comprises a plurality of strut-shaped molding elements 37, which serve to form the film 6 via a bone defect 2 (not shown here), wherein the film 6 can be easily molded by the molding elements 37 to a still existing jaw bone 3 of the bone defect site 2. Overall, the mold structure 35 is substantially lattice-shaped and thus allows the formation of any surface shapes of the film 6, so that any cavity forms between the film 6 and the bone defect 2 can be formed in conjunction with a bone defect 2.
    The mold layer 33 as well as the cover layers 34a and 34b each consist of a bioresorbable material, so that the film 6 as a whole is completely completely absorbable in the body. By providing two cover layers 34a and 34b, between which the mold layer 33 is embedded, in particular the absorption rate and mechanical strength of the mold layer 33 can be controlled.
    The cover layers 34a and 34b can be, for example, bioresorbable collagen membranes which on the one hand can cover a bone defect 2 due to their softness and on the other hand can bond well with a gum 31 surrounding the bone defect 2 so that a good sealing of the bone defect 2 is achieved results.
    For example, the mold layer 33 may be made of a bioabsorbable polymer material or co-polymer material. In particular, the mold layer 33 may comprise, for example, about 82% L-lactic acid and about 18% glycolic acid. Such a choice of material results in a substantially dimensionally stable shaping layer 33, which may be formed mechanically, thermally and / or chemically deformable to form a bone defect 2, wherein the shaping layer 33 is substantially dimensionally stable again after such a deformation. Due to the rigidity and dimensional stability of the shaping layer 33, a leaflet 27 for bone regeneration can thus be created between the foil 6 and a bone defect 2 and held for the period of bone regeneration.
    FIG. 11 shows a side view of the pre-bonded multilayer film 6 according to FIG. 10.
    FIG. 12 shows a plan view of a further variant of the proposed film 6, which in this example has two layers and comprises a shaping layer 33 and a covering layer 34. Both the mold layer 33 and the cover layer 34 are formed substantially flat. The film 6 can be cut to any desired, depending on the application to allow a good Anformung to a bone defect site 2.
    FIG. 13 and FIG. 14 show two further embodiments of a proposed two-layer film 6 with different outer contours of the cover layer 34 and differently shaped mold structures 35 of the mold layer 33.
    Figure 15 and Figure 16 show further examples of proposed films 6, wherein in the examples shown here, the mold layer 33 was applied in each case as a gel on the cover layer 34 and cured thereafter. The mold layers 33 shown here each comprise a mold structure 35, which was achieved, for example, by applying more gel in the regions of the mold structure 35, so that the mold layers 33 have different layer thicknesses. In the region of a mold structure 35, a mold layer 33 has a thicker layer thickness than in the remaining regions of the mold layer 33.
    FIGS. 17 to 24 show further exemplary embodiments of a proposed film 6 in each case in a perspective exploded view. The side 39 of a film 6 pointing downwards in the figures is the side 39 of the film 6 facing a bone defect 2.
    The examples of FIG. 17 and FIG. 18 have a two-layer structure and each comprise a molding layer 33 and a cover layer 34, wherein the molding layer 33 occupies a smaller surface area than the cover layer 34. The examples of FIG. 19 and FIG. 20 are constructed in three layers and each comprise, in addition to a mold layer 33 and a cover layer 34, a carrier layer 38 on which substances such as medicaments, growth factors and / or other substances promoting healing and bone formation and protective substances can be applied.
    The examples of FIGS. 21 to 24 each have a mold layer 33 and two cover layers 34a and 34b each, the mold layer 33 occupying a smaller surface area than the cover layers 34a and 34b. The examples of FIG. 22 to FIG. 24 each additionally have a carrier layer 38 which can be equipped with corresponding substances (as described above for FIG. 19 and FIG. 20).
    Innsbruck, on April 11, 2014
    权利要求:
    Claims (17)
    [1]
    1. Dental implant system (1) for the bone regeneration of a bone defect (2) of a jaw bone (3) comprising - in the jaw bone (3) to be anchored implant (4) with a threaded bore (5), - a film (6) for covering the bone defect (2) and the implant (4), - a fastening screw (7) for positionally stable attachment of the film (6) relative to the implant (4), wherein in mounting position a screw bolt (8) of the fastening screw (7) through the film ( 6) protrudes and with the threaded bore (5) of the implant (4) can be screwed, characterized in that a spacer element (9) between the implant (4) and the film (6) can be arranged, wherein in mounting position of the bolt (8 ) protrudes through the spacer element (9).
    [2]
    2. Dental implant system according to claim 1, characterized in that the spacer element (9) for passing the screw bolt (8) has a through hole (10) with a bore diameter (11) which is larger than an outer diameter (12) of the screw bolt (8). ,
    [3]
    3. dental implant system according to claim 1 or 2, characterized in that the spacer element (9) on the implant (4) is rotatably arranged can be arranged.
    [4]
    4. dental implant system according to claim 3, characterized in that as a rotation lock on the spacer element (9) projections (13) are arranged, which in corresponding recesses (14) of the implant (4) are insertable.
    [5]
    5. Dental implant system according to one of claims 1 to 4, characterized in that the spacer element (9) is substantially hollow cylindrical, preferably as a substantially tubular sleeve is formed.
    [6]
    6. Dental implant system according to one of claims 1 to 4, characterized in that the spacer element (9) is formed substantially conical or frusto-conical.
    [7]
    7. dental implant system according to one of claims 1 to 6, characterized in that the fastening screw (7) has a screw head (15), wherein the film (6) between spacer element (9) and screw head (15) can be clamped.
    [8]
    8. Dental implant system according to claim 7, characterized in that the screw head (15) is provided at a mounting position of the film (6) facing the screw head surface (16) with a friction-reducing coating, preferably with a Teflon coating.
    [9]
    9. dental implant system according to claim 7 or 8, characterized in that the film (6) at a mounting position in the screw head (15) facing the film surface (17) at least in a contact region with the screw head (15) with a friction-reducing coating, preferably with a Teflon coating is provided.
    [10]
    10. Dental implant system according to one of claims 1 to 9, characterized in that the dental implant system (1) comprises a substantially tubular mounting sleeve (18) through which in the mounting position of the bolt (8) protrudes, wherein the film (6) between the spacer element (9) and fastening sleeve (18) can be clamped.
    [11]
    11. dental implant system according to claim 10, characterized in that the fastening sleeve (18) for passing the screw bolt (8) has a through hole (19) having a hole diameter (20) which is larger than an outer diameter (12) of the screw bolt (8) ,
    [12]
    12. Dental implant system according to claim 10 or 11, characterized in that on the mounting sleeve (18) at a mounting position of the film (6) facing the sleeve surface (21) at least one - preferably substantially thorn-shaped - extension (22) for fixing the position of the film (6) is arranged relative to the fastening sleeve (18).
    [13]
    13. Dental implant system according to one of claims 1 to 12, characterized in that the film (6) is substantially completely absorbable.
    [14]
    14. Dental implant system according to one of claims 1 to 13, characterized in that the film (6) is a, preferably pre-bonded, multilayer film having a shaping mold layer for molding the film to the bone defect site (2) and at least one cover layer to cover the Bone defect site (2), wherein the mold layer and the at least one cover layer are substantially completely absorbable.
    [15]
    15. Dental implant system according to claim 14, characterized in that the shaping layer is stiffer than the at least one covering layer.
    [16]
    16. Dental implant system according to claim 14 or 15, characterized in that the at least one cover layer at least partially, preferably substantially completely, consists of a bioresorbable collagen material, wherein preferably the bioresorbable collagen material comprises type I collagen and / or type III collagen ,
    [17]
    17. Dental implant system according to one of claims 14 to 16, characterized in that the mold layer at least partially, preferably substantially completely, consists of a bioresorbable polymer material, wherein preferably the bioresorbable polymer material comprises lactic acid, preferably L-lactic acid, and / or derivatives thereof. Innsbruck, on April 11, 2014
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    同族专利:
    公开号 | 公开日
    US20170020634A1|2017-01-26|
    ES2689077T3|2018-11-08|
    EP3134026B1|2018-06-27|
    PL3134026T3|2018-12-31|
    HUE040495T2|2019-03-28|
    EP3134026A1|2017-03-01|
    AT515117B1|2015-06-15|
    WO2015157784A1|2015-10-22|
    CN106232054A|2016-12-14|
    CN106232054B|2021-03-09|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA280/2014A|AT515117B1|2014-04-15|2014-04-15|Dental implant system|ATA280/2014A| AT515117B1|2014-04-15|2014-04-15|Dental implant system|
    CN201580019698.4A| CN106232054B|2014-04-15|2015-02-04|Dental implant system|
    PCT/AT2015/000016| WO2015157784A1|2014-04-15|2015-02-04|Dental implant system|
    HUE15712029A| HUE040495T2|2014-04-15|2015-02-04|Dental implant system|
    PL15712029T| PL3134026T3|2014-04-15|2015-02-04|Dental implant system|
    EP15712029.6A| EP3134026B1|2014-04-15|2015-02-04|Dental implant system|
    ES15712029.6T| ES2689077T3|2014-04-15|2015-02-04|Dental implant system|
    US15/285,829| US20170020634A1|2014-04-15|2016-10-05|Dental implant system|
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