IMPLANTATION SYSTEM AND ADD-ON ELEMENT FOR AN IMPLANTATION SYSTEM

Abstract

An implantation system has an implant body, an add-on element, and a connection element. The implant body has a connection inner profile or a connection outer profile; which cooperates with a connection outer profile or with a connection inner profile of the add-on element. The add-on element is connectable to the implant body in a rotationally-fixed manner. The connection element is screwable through an aperture of the add-on element into a thread of the implant body in order to detachably connect the add-on element to the implant body. The disclosure also describes an add-on element for an implantation system. The add-on element has a connection inner profile or a connection outer profile for producing a rotationally-fixed connection to a connection outer profile or to a connection inner profile of an implant body, and having an aperture for introducing a connection element.

Claims

1. An implantation system, comprising: an implant body; an add-on element; and a connection element, wherein the implant body has a connection inner profile or a connection outer profile, which cooperates with a connection outer profile or with a connection inner profile of the add-on element, wherein the add-on element is connectable to the implant body in a rotationally-fixed manner, and wherein the connection element is screwable through an aperture of the add-on element into a thread of the implant body in order to detachably connect the add-on element to the implant body.

2. The implantation system according to claim 1, wherein, in the state of the add-on element connected to the implant body, a head of the add-on element projects out of the implant body or from an implant shoulder by 1.5 mm to 4.5 mm.

3. The implantation system according to claim 1, wherein the add-on element has an active profile for an active element, and wherein the add-on element connected to the implant body via the connection element is implantable.

4. The implantation system according to claim 1, further comprising a closing element that is connectable to the add-on element in a form-fitting and/or force-fitting manner in order to close the aperture of the add-on element.

5. The implantation system according to claim 4, wherein, in the state connected to the add-on element, a head of the closing element projects out of the add-on element by less than 2.5 mm.

6. The implantation system according to claim 4, wherein the closing element and the add-on element are designed configured such that, when they are connected together with the implant body, a head of the closing element and a head of the add-on element project out of the implant body or from an implant shoulder together by less than 5 mm.

7. The implantation system according to claim 4, wherein a thread for the closing element is formed on an active profile of the add-on element.

8. The implantation system according to claim 1, wherein the implant body is configured se to be arranged below bone level.

9. The implantation system according to claim 1, wherein the connection inner profile of the implant body and the connection outer profile of the add-on element, or the connection outer profile of the implant body and the connection inner profile of the add-on element, are configured to achieve a torque transmission of at least 30 N.Math.cm, in particular of at least 40 N.Math.cm, and preferably of at least 50 N.Math.cm, is possible.

10. The implantation system according to claim 1, wherein the connection inner profile of the implant body and an active profile of the add-on element are at least substantially identical.

11. The implantation system according to claim 1, further comprising an instrument, wherein the instrument has a shaft, and wherein an active element is formed at the distal end of the shaft, said active element corresponding to an active profile of the add-on element.

12. The implantation system according to claim 11, wherein the shaft is tubular, wherein a rod is arrangeable or arranged movably within the shaft, and wherein an active geometry is formed at the distal end of the rod and corresponds to an engagement point of the connection element.

13. The implantation system according to claim 1, further comprising a release instrument that is arranged with a release rod, wherein, set back from a distal end of the release rod, is a release thread.

14. An add-on element for an implantation system according to claim 1, having a connection inner profile or having a connection outer profile for producing a rotationally-fixed connection to a connection outer profile or to a connection inner profile of an implant body and having an aperture for introducing the connection element.

15. The implantation system according to claim 2, wherein, in the state of the add-on element connected to the implant body, the head of the add-on element projects out of the implant body or from the implant shoulder by 1.5 mm to 3.5 mm.

16. The implantation system according to claim 2, wherein, in the state of the add-on element connected to the implant body, the head of the add-on element projects out of the implant body or from the implant shoulder by 2.0 mm to 2.5 mm.

17. The implantation system according to claim 5, wherein, in the state connected to the add-on element, the head of the closing element projects out of the add-on element by less than 1.5 mm.

18. The implantation system according to claim 5, wherein, in the state connected to the add-on element, the head of the closing element projects out of the add-on element by less than 0.5 mm.

19. The implantation system according to claim 6, wherein, when the closing element and the add-on element are connected together with the implant body, the head of the closing element and the head of the add-on element project out of the implant body or from the implant shoulder together by less than 4 mm.

20. The implantation system according to claim 6, wherein, when the closing element and the add-on element are connected together with the implant body, the head of the closing element and the head of the add-on element project out of the implant body or from the implant shoulder together by less than 2.8 mm.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0037] There are various possibilities for designing and developing the teaching of the present disclosure in an advantageous manner. To this end, reference is made to the following explanation of preferred exemplary embodiments of the present disclosure based upon the drawings. In connection with the explanation of the preferred exemplary embodiments of the disclosure based upon the drawings, generally preferred developments and further developments of the teaching are also explained. In the following:

[0038] FIG. 1 is a schematic representation, a perspectival view of an exemplary embodiment of an implant body of an implantation system according to the present disclosure;

[0039] FIG. 2 is a further schematic representation, a cutaway view of an exemplary embodiment of the implant body according to FIG. 1;

[0040] FIG. 3 is a further schematic representation, showing a cutaway view of an exemplary embodiment of the implant body according to FIG. 1;

[0041] FIG. 4 is a schematic representation, showing a side view of an exemplary embodiment of an add-on element of an implantation system according to the present disclosure;

[0042] FIG. 5 is a further schematic representation, showing a cutaway view of an exemplary embodiment of the add-on element according to FIG. 4;

[0043] FIG. 6 is a schematic representation, showing a side view of an exemplary embodiment of a connection element of an implantation system according to the present disclosure;

[0044] FIG. 7 is a further schematic representation, showing a cutaway view of an exemplary embodiment of the connection element according to FIG. 6;

[0045] FIG. 8 is a schematic representation, showing a side view of an exemplary embodiment of a closing element of an implantation system according to the present disclosure;

[0046] FIG. 9 is a further schematic representation, showing a cutaway view of an exemplary embodiment of the closing element according to FIG. 8;

[0047] FIG. 10 is a schematic representation, showing an exploded view of the elements shown in FIGS. 1 through 9;

[0048] FIG. 11 is a schematic representation, showing a side view of an exemplary embodiment of an instrument of an implantation system according to the present disclosure;

[0049] FIG. 12 is a schematic representation, showing a side view of an exemplary embodiment of a rod of an implantation system according to the present disclosure; and

[0050] FIG. 13 is a schematic representation, showing a side view of an exemplary embodiment of a release instrument of an implantation system according to the present disclosure.

DETAILED DESCRIPTION

[0051] FIGS. 1 through 3 show, in different representations, an exemplary embodiment of an implant body 1 of an implantation system according to the present disclosure. The implant body 1 has a thread 2 on its outer surface and is substantially cylindrical, wherein a geometry deviating from a cylinder is possible, and a thread does not necessarily have to be formed. Furthermore, a connection inner profile 3 is formed in the implant body 1, and the implant shoulder 34 is shown in the figures.

[0052] FIGS. 4 through 6 show an exemplary embodiment of an add-on element 4 of an implantation system according to the present disclosure. The add-on element 4 has a connection outer profile 5, which corresponds to the connection inner profile 3 of the implant body 1 according to FIGS. 1 through 3. The add-on element 4 can thus be introduced into the implant body 1, wherein the connection inner profile 5 and the connection outer profile 3 realize a rotationally-fixed connection. It should be noted at this juncture that it is also conceivable that the add-on element 4 have a connection inner profile and the implant body 1 have a connection outer profile, such that the add-on element 4 is placed on the implant body 1 and is not inserted into the implant body 1, as is the case in the exemplary embodiment described here. In the exemplary embodiment shown here, the connection inner profile 3 and the connection outer profile 5 are designed as hexagonal profiles, which are particularly well suited for transmitting the required torques. However, other geometries for the connection inner profile 3 and the connection outer profile 5 are also conceivable. Furthermore, it can be clearly seen in FIG. 5 that the add-on element 4 has an additional, lower thread 26. This serves to hold the connection element 10 before it is screwed further into the thread 13 of the implant body 1. Thus, the thread 12 of the connection element 10 and the lower thread 26 of the add-on element 4 correspond.

[0053] Furthermore, an active profile 6 for an active element 7 (FIG. 12) is formed on the add-on element 4. FIG. 5 clearly shows that the add-on element 4 has a projection 8 on which a shoulder 9 of the connection element 10 shown in FIGS. 6 and 7 can engage when the connection element 10 is introduced into the aperture 16 of the add-on element 4. In order to facilitate a subcrestal positioning of the implant body 1 with simultaneously submerged healing, the head 11 of the add-on element 4 can have a height 25 of 1.5 mm to 4.5 mm, in particular 1.5 mm to 3.5 mm, and preferably 2.0 mm to 2.5 mm. It can be clearly seen here that the head 11 projects out of the implant body 1 or protrudes/projects from the implant shoulder 34 when the add-on element 4 is connected thereto.

[0054] The connection element 10 has a thread 12, via which it can be connected to the thread 13 of the implant body 1, wherein it engages thereby with the shoulder 8 behind the projection 9 of the add-on element 4.

[0055] FIGS. 8 and 9 show a first closing element 14 of an implantation system according to the disclosure. A thread 15 is formed on the closing element 14, via which thread 15 the closing element 14 can be connected to the thread 17 of the add-on element 4 in order to close the aperture 16 of the add-on element 4. For this purpose, a profile 24 is provided, on which a corresponding tool can engage. FIG. 5 shows that the thread 17 is provided on the active profile 6 of the add-on element 4. In the exploded view in FIG. 10, the implant body 1, the add-on element 4, the connection element 10, and the closing element 14 of FIGS. 1 through 9 are shown together. If a closing element 14 is arranged, a head 31 of the closing element 14 and the head 11 of the add-on element 4 together can have a height of less than 5 mm, in particular less than 4 mm, and preferably less than 2.8 mm. Thus, in the state connected to the implant body 1, and in particular when they are completely inserted, the closing element 14 and the add-on element 4 project by said height out of the implant body 1 or protrude by said height from the implant shoulder 34. The height 32 of the head 31 of the closing element 14 can be less than 2.5 mm, in particular less than 1.5 mm, and preferably less than 0.5 mm.

[0056] It can also be seen in FIG. 9 that the profile 24 is provided in a blind hole, wherein the base of the blind hole is of conical design. A further blind hole is formed on the side, facing away from the profile 24, of the closing element 14, the base of which blind hole has, at least partially, a cone-shaped protrusion 33, which thus receives the conical configuration of the opposite blind hole.

[0057] The blind hole formed in the connection element 10, in which the engagement point 23 is arranged, has a geometry corresponding to the base. This makes it possible to realize the closing element 14 with an extremely low height and to screw it deeply into the add-on element 4, such that it protrudes as little as possible from the add-on element 4, in order to facilitate submerged healing. The conical base of the blind hole in the closing element 14 provides enough space that the profile 24 can be formed with a stamp in the blind hole, and material can be displaced accordingly.

[0058] FIG. 11 shows an exemplary embodiment of an instrument 18 of an implantation system according to the present disclosure. The instrument 18 is shown here as a hand instrument and has a shaft 19, at the distal end of which the active element 7 is formed, which corresponds to the active profile 6 of the add-on element 4. Thus, the add-on element 4 can be received with the instrument 18 and optionally inserted by the latter into the bone together with the implant body 1.

[0059] Furthermore, it can be seen that the shaft 19 is tubular, such that the rod 21 shown in FIG. 12 can be arranged movably within the shaft 19. At its distal end, the rod 21 has an active geometry 22, which corresponds to an engagement point 23 of the connection element 10. The connection element 10 can thus be screwed into the thread 13 of the implant body 1 with the rod 21.

[0060] It is apparent from FIG. 11 that the rod 21 is thus part of a second instrument, which is also realized here as a hand instrument. It is conceivable that the profile 24 of the closing element be designed such that it corresponds to the active geometry 22. In this case, the rod 21 could also serve for attaching the closing element 14.

[0061] FIG. 13 shows a schematic representation of a release instrument 27. Said release instrument 27 serves to remove or release the add-on element 4 from the implant body 1 after the healing period. For this purpose, the release instrument 27 has a release rod 28, wherein, set back from the distal end of the release rod 28, a release thread 29 is formed. To release the add-on element 4, the closing element 14 and the connection element 10 are, optionally, first removed. The distal end of the release instrument 27 can then be inserted into the aperture 16 of the add-on element 4, and the release thread 29 can be screwed into the lower thread 26. Since the release thread 26 is arranged set back from the distal end of the release rod 28, the distal end of the release rod 28 abuts against the base 30 of the implant body 1. With the further screwing in of the release rod 28, the add-on element 4 is thus pulled off the implant body 1 such that an add-on element 4, which has become partially ingrown, can be easily and non-destructively removed.

[0062] With regard to further advantageous embodiments of the device according to the present disclosure, reference is made to the general part of the description and to the appended claims in order to avoid repetitions.

[0063] Finally, it is expressly pointed out that the exemplary embodiments described above of the device according to the present disclosure serve only to explain the claimed teaching, but do not limit it to the exemplary embodiments.

LIST OF REFERENCE NUMBERS

[0064] 1 Implant body [0065] 2 Thread (implant body) [0066] 3 Connection inner profile [0067] 4 Add-on element [0068] 5 Connection outer profile [0069] 6 Active profile [0070] 7 Active element [0071] 8 Projection [0072] 9 Shoulder [0073] 10 Connection element [0074] 11 Head (add-on element) [0075] 12 Thread (connection element) [0076] 13 Thread (implant body) [0077] 14 Closing element [0078] 15 Thread (closing element) [0079] 16 Aperture [0080] 17 Thread (add-on element) [0081] 18 Instrument [0082] 19 Shaft [0083] 20 Active element [0084] 21 Rod [0085] 22 Active geometry (rod) [0086] 23 Engagement point [0087] 24 Profile [0088] 25 Height (add-on element) [0089] 26 Thread (add-on element) [0090] 27 Release instrument [0091] 28 Release rod [0092] 29 Release thread [0093] 30 Base [0094] 31 Head (closing element) [0095] 32 Height (closing element) [0096] 33 Protrusion [0097] 34 Implant shoulder

[0098] The various embodiments described above can be combined to provide further embodiments. These and other changes can be made to the embodiments in light of the above detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled. Accordingly, the claims are not limited by the disclosure.