A kit of tools for implanting a tendon fixation implant

Abstract

A kit for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic human medicine, wherein the tendon fixation implant comprises a medial anchor (13), a lateral anchor (23) and a base plate (51), wherein the kit comprises a medial anchor inserter (10), wherein the medial anchor inserter (10) comprises a medial anchor drive spindle (11) and a medial anchor release tube (12), wherein the medial anchor release tube (12) is designed to receive the medial anchor drive spindle (11), wherein the medial anchor drive spindle (11) is designed to receive a medial anchor (13) and to introduce the medial anchor (13) into a bone, wherein the medial anchor drive spindle (11) has a locking head (16) for locking the medial anchor drive spindle (11) on the medial anchor release tube (12).

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of technology for tools for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic human medicine and to a corresponding system comprising a tendon fixation implant and a set of tools for minimally invasive implantation of a tendon fixation implant. BACKGROUND

[0002] Various tools for introducing implants are known. Instruments for minimally invasive surgery in tendon surgery are known, for example, from the publication documents EP 3 020 371 A2 or EP 2020372A1. Tendon fixation implants are also known, for example, from CA 3 186 602 A1. The document EP 3 184 078 A1 discloses, in addition to an implant for planar connection of tissue to bone, a corresponding system for connecting tissue to bone, comprising at least one implant and at least one tool, wherein the tool comprises, inter alia, a handle part and a shaft arranged thereon non-rotatably. SUMMARY

[0003] Based on the prior art, it is the technical object of the present invention to propose a feasible solution for introducing a tendon fixation implant with reduced effort and time expenditure.

[0004] In the sense of the present invention, an anchor is to be understood as a bone anchor, in particular a cannulated anchor for bone.

[0005] Furthermore, in the sense of the present invention, an inserter is to be understood as an arthroscopic introduction tool.

[0006] Furthermore, in the sense of the present invention, an inlay is to be understood as a holding device for receiving and dispensing at least one anchor. The inlay is part of the packaging, wherein the function of the inlay is to protect the anchor and the base plate from damage safely during storage or transport. Furthermore, the inlay ensures easy removal of the tendon fixation implant. The anchor is held in position by elastic deformation of the inlay receptacle, wherein the base plate is held in position by the cover.

[0007] According to one aspect, the technical object of the present invention is achieved by a set of tools for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic human medicine, wherein the tendon fixation implant comprises a medial anchor, a lateral anchor and a base plate, wherein the set of tools comprises a medial anchor inserter, wherein the medial anchor inserter comprises a medial anchor drive spindle and a medial anchor release tube, wherein the medial anchor release tube is designed for receiving the medial anchor drive spindle, wherein the medial anchor drive spindle is designed for receiving the medial anchor and introducing the medial anchor into the bone, wherein the medial anchor drive spindle has a locking head for locking the medial anchor drive spindle on the medial anchor release tube.

[0008] It is thus advantageously possible to introduce at least some parts of the tendon fixation implant in particular time-saving. The medial anchor drive spindle can be used to receive the medial anchor, which makes it possible to precisely position the medial anchor on the bone and to quickly push the medial anchor in. The locking head provides a cost-effective possibility of stably fixing the anchor drive spindle on the medial anchor release tube. The time required during surgery or for inserting the tendon fixation implant can thus be significantly reduced.

[0009] The tool set further comprises a base plate inserter, a handpiece and a base plate insertion tube, wherein the base plate insertion tube is designed to receive a base plate of a tendon fixation plate and to at least partially introduce the base plate into tissue or bone and to receive a medial anchor inserter inside the handpiece and the base plate insertion tube, wherein the medial anchor inserter is temporarily prevented from being fully inserted into the base plate inserter using a releasable stop clamp.

[0010] This can also advantageously facilitate the insertion of at least some parts of the tendon fixation implant in particular time-saving. The base plate can be stably and precisely inserted into the implantation site and the individual parts of the tendon fixation implant can be fixed step by step using the stop clamp. Furthermore, this can have a beneficial effect on the precision of the surgical procedure.

[0011] In a further embodiment which is advantageous in terms of technology, it is provided that a flange is respectively configured on the medial anchor release tube and on the base plate inserter.

[0012] Such a flange provides the possibility of advantageously implementing further elements which can act for example form-fittingly, which can be used on the one hand to insert the base plate inserter into the medial anchor release tube to a defined depth and on the other hand to prevent slipping.

[0013] In a further embodiment which is advantageous in terms of technology, it is provided that the stop clamp is designed as a positionally fixed bridge and / or is designed to prevent a possible axial displacement between the medial anchor release tube and the base plate inserter by form-fitting flanges.

[0014] It is thus advantageously possible to provide a connection which can be quickly and easily closed or released, which can also have a beneficial acceleration effect on the surgical procedure.

[0015] Furthermore, in an embodiment which is advantageous in terms of technology, it is provided that the stop clamp is designed to be removable, in particular to be pulled out.

[0016] It is thus possible to dispense with possible complex holding mechanisms and a simple design of the tool set can thus be implemented.

[0017] In a further embodiment of advantageous technical nature it is provided that the stop clamp is designed in particular slotted such that a first penetration depth of the medial anchor into the bone can be adjusted.

[0018] Thereby the insertion of the tendon fixation implant can be flexibly and correspondingly adapted to the possible requirements.

[0019] In a further embodiment of advantageous technical nature the tool set further comprises a lateral anchor inserter, wherein the lateral anchor inserter comprises a lateral anchor drive spindle and a lateral anchor release tube, wherein the lateral anchor release tube is designed for receiving the lateral anchor drive spindle, wherein the lateral anchor drive spindle is designed for receiving the lateral anchor and introducing the lateral anchor into the bone.

[0020] This can advantageously also facilitate the introduction of at least some parts of the tendon fixation implant in particular time-efficiently. The lateral anchor can be received using the medial anchor drive spindle, which can enable an exact placement of the lateral anchor on the bone and a quick push-in. The time required during the operation or for the insertion of the tendon fixation implant can thereby additionally be significantly reduced.

[0021] Further, in an embodiment of advantageous technical nature it is provided that the medial anchor release tube is designed at an end face of the medial anchor release tube for bearing on a bearing contour, in particular a flange surface, of the medial anchor.

[0022] Advantageously, the force acting on the medial anchor for pushing it into the bone can be distributed over a large area and uniformly on the end face of the medial anchor and any damage during insertion can be minimized. Thus, the medial anchor can be inserted quickly and smoothly into the bone, which can also enable a reduction in time.

[0023] Further, it is provided that the end face of the medial anchor release tube together with the bearing contour, in particular the flange surface, of the medial anchor forms a first push-out mechanism which enables the medial anchor to be loosened from the medial anchor drive spindle.

[0024] Advantageously, the medial anchor can then be loosened smoothly and safely from the medial anchor drive spindle after it has been inserted into the bone and can remain fixed in its position in the bone during this time.

[0025] Further, it is provided that the lateral anchor release tube is designed at an end face of the lateral anchor release tube for bearing on a bearing contour, in particular a flange surface, of the lateral anchor.

[0026] Advantageously, the force acting on the lateral anchor for pushing it into the bone can be distributed over a large area and uniformly on the end face of the lateral anchor and any damage during insertion can be minimized. Thus, the lateral anchor can be inserted into the bone quickly and smoothly, which can also achieve a reduction in time.

[0027] It is furthermore provided that the end face of the lateral anchor release tube (22) together with the support profile, in particular the flange surface, of the lateral anchor (23) forms a second push-out mechanism which enables the lateral anchor (23) to be loosened from the lateral anchor drive spindle (21).

[0028] Advantageously, the lateral anchor can then be loosened from the lateral anchor drive spindle after it has been inserted into the bone, smoothly and safely, and can remain fixed in its position in the bone during this time.

[0029] Furthermore, in a technically advantageous embodiment, the tool set also comprises a re-impact tool and a re-impact handpiece, the re-impact tool comprising a re-impact drive spindle.

[0030] This can advantageously enable further pushing in of the anchor of the tendon fixation implant.

[0031] In addition, in a technically advantageous embodiment, the tool set also comprises a trocar.

[0032] This advantageously offers the surgeon the possibility of opening the wound channel during the surgical insertion of the tendon fixation implant and of keeping it open during the operation.

[0033] In a further technically advantageous embodiment, the tool set also comprises an inlay, wherein the inlay is designed to receive the tendon fixation plate, the medial anchor and the lateral anchor, wherein the inlay has markings for the single, unambiguous differentiation of the anchors.

[0034] This has an advantageous effect on the smooth implementation of the surgical procedure, since a quick differentiation between the medial anchor and the lateral anchor can be made and the correct anchor can be selected for the respective part of the operation. In addition, at least the individual elements of the tendon fixation implant can thus be safely transported and protected from damage or contamination.

[0035] It is furthermore provided that the medial anchor and / or the lateral anchor can be introduced into the bone without the need for drilling, in particular without the need for pre-drilling.

[0036] Advantageously, an additional working step can thus be saved and an additional time reduction can be achieved.

[0037] According to another aspect, the technical object of the present application is achieved by a system comprising a tendon fixation implant and a set of tools for minimally invasively implanting the tendon fixation implant, wherein the tendon fixation implant comprises a medial anchor, a lateral anchor and a base plate.

[0038] This can also advantageously enable an accelerated and smooth surgical procedure for fixing tissue to bone.

[0039] Embodiments of the present application are illustrated in the accompanying drawings and will be described in more detail below.

[0040] All features explained in connection with the individual embodiments of the application can be provided in different combinations in the subject matter according to the application in order to achieve their advantageous effects at the same time.

[0041] The scope of the protection of the application is given by the claims, and not by the explanation in the description or by the drawings. The features of the application are not limited to the explanations given in the description or in the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] The drawings show:

[0043] Figure 1 is a schematic view of a system comprising a set of tools and a tendon fixation implant fixed thereon;

[0044] Figure 2 is a schematic detail view of the tip of a medial anchor inserter;

[0045] Figure 3 is a schematic detail view of the tip of a lateral anchor inserter; and

[0046] Figure 4 is a schematic view of a stop clamp. DETAILED DESCRIPTION

[0047] Figure 1 is a schematic view of a system comprising a set of tools for minimally invasively implanting the shown tendon fixation implant located on the set of tools.

[0048] Here, the shown tendon fixation implant comprises a medial anchor 13 having a head 14 of the medial anchor, a base plate 51 and a lateral anchor 23. The set of tools shown comprises a trocar 40 with a trocar tube 41, a punch tool 30 with a punch drive shaft 31 and a punch handpiece 32, a lateral anchor inserter 20 with a lateral anchor drive shaft 21 and a lateral anchor release tube 22. Furthermore, the set of tools shown comprises a medial anchor inserter 10 with a medial anchor inserter handpiece 17, a medial anchor drive shaft 11, a medial anchor release tube 12, a locking head 16 and a stop clamp 15 with a slot 18.

[0049] The shown set of tools comprises a trocar 40 with a trocar tube 41, a punch tool 30 with a punch drive shaft 31 and a punch handpiece 32, a lateral anchor inserter 20 with a lateral anchor drive shaft 21 and a lateral anchor release tube 22. Furthermore, the set of tools shown comprises a medial anchor inserter 10 with a medial anchor inserter handpiece 17, a medial anchor drive shaft 11, a medial anchor release tube 12, a locking head 16 and a stop clamp 15 with a slot 18.

[0050] In addition, the flanges of the release tube 61 and of the base plate inserter 62 are shown. The stop clamp 15 is designed as a position- fixed bridge and cooperates with the flanges 61, 61 in a form- fitting manner to prevent any possible axial displacement between the inner anchor release tube 12 and the base plate inserter 52. This can prevent, for example, the inner anchor from penetrating too deeply into the bone, which is not shown.

[0051] In the interaction between the individual elements of the inner anchor inserter, the inner anchor can be introduced first partially into the bone, which is not shown, by the action of the force applied to the locking head 16 via the slot 18 of the stop clamp 15, and then further into this bone after removal of the stop clamp 15. It is further conceivable that the slot width of the slot 18 can be adjusted by means of a mechanism, which is not detailed, for example an adjustment screw, in order to achieve greater flexibility during the surgical procedure. Figure 1

[0052] The stop clamp 15 is designed to be loosened, removed and able to be pulled out in a time-saving and simple manner in the radial direction of the anchor inserter 10, which enables the surgeon to work smoothly. The outer anchor inserter 20 can then be used to likewise smoothly introduce the outer anchor 23 into the bone.

[0053] Figure 2 is a schematic detail view of the tip of the inner anchor inserter 10 shown in Figure 1 The inner anchor 13 is held inserted on the inner anchor drive spindle 12, which is shown inserted into the inner anchor release tube 12. The inner anchor release tube 12 itself is shown inserted into the base plate inserter 52, on which the base plate 51 is located. The base plate 51 has an opening, which is not detailed, Figure 1 or Figure 3 The outer anchor 23 shown in can be smoothly inserted through this opening with the aid of the outer anchor inserter 20.

[0054] It is further shown that the inner anchor release tube 12 is designed at an end face, which is not detailed, for support on a support profile, for example a flange surface, of the inner anchor 13. This is shown analogously for the outer anchor release tube and the outer anchor in Figure 3 The outer anchor release tube is designed at an also not detailed end face for support on a support profile, for example a flange surface, of the outer anchor 14 in Figure 3

[0055] in connection with Figure 1 and Figure 2 ​​It can also be seen that the stop clamp 15 temporarily prevents the complete insertion of the inner anchor 13 into the substrate 51, i.e. the head 14 of the inner anchor rests on the substrate 51.

[0056] Furthermore, the inner anchor 13 has a locking element in the form of a barb 13a.

[0057] In another embodiment, the inner anchor 13 can also have a locking element corresponding to the outer anchor 23, which has barbs or detents 23a (analogous) that project further. Preferably, these detents 23a (analogous) can also be configured to be circumferential, partially offset by 90°, or alternatively to be barbs and detents, which have their axes of symmetry rotated by 90° relative to each other, respectively.

[0058] Figure 3 is a schematic detail view of the tip of the outer anchor inserter 20 shown in Fig. Figure 1 Furthermore, the outer anchor 23 has a locking element in the form of a locking detent 23a.

[0059]

[0060] Figure 4 is a schematic view of the stop clamp 15 with the slot 18. In conjunction with Figure 4 With Figure 1 It is shown how the stop clamp 15 interactively releasably prevents the inner anchor from being inserted too far or too little with the flange of the release tube 61 and the flange of the substrate inserter.

[0061] All features explained in conjunction with the individual embodiments of the application can be provided in different combinations in the subject matter according to the application in order to simultaneously achieve their advantageous effects.

[0062] The scope of protection of the application is given by the claims, and is not restricted to the features explained in the description or shown in the drawings.

[0063] List of reference signs

[0064] 10 inner anchor inserter

[0065] 11 inner anchor drive spindle

[0066] 12 inner anchor release tube

[0067] 13 inner anchor

[0068] 13a barb

[0069] 14 inner anchor head

[0070] ​15 stop clamp

[0071] 16 locking head

[0072] 17 inner anchor inserter handpiece

[0073] 18 slot

[0074] 20 outer anchor inserter

[0075] 21 outer anchor drive shaft

[0076] 22 outer anchor release tube

[0077] 23 outer anchor

[0078] 23a locking detent

[0079] 30 re-impact tool

[0080] 31 re-impact drive shaft

[0081] 32 re-impact handpiece

[0082] 40 trocar

[0083] 41 trocar tube

[0084] 51 base plate

[0085] 52 base plate inserter

[0086] 52 base plate insertion tube

[0087] 53 barb / label

[0088] 54 marker

[0089] 61 release tube flange

[0090] 62 base plate inserter flange.

Claims

1. A tool set for minimally invasively implanting a tendon fixation implant in the field of arthroscopic human medicine, wherein, The tendon fixation implant comprises a medial anchor (13), a lateral anchor (23) and a base plate (51), wherein The tool set comprises a medial anchor inserter (10), wherein the medial anchor inserter (10) comprises a medial anchor drive spindle (11) and a medial anchor release tube (12), wherein the medial anchor release tube (12) is designed to receive the medial anchor drive spindle (11), wherein the medial anchor drive spindle (11) is designed to receive a medial anchor (13) and to introduce the medial anchor (13) into a bone by pushing, wherein the medial anchor drive spindle (11) has a locking head (16) for locking the medial anchor drive spindle (11) on the medial anchor release tube (12), characterized in that The tool set further comprises a base plate inserter (52), which comprises a handpiece and a base plate insertion tube, wherein the base plate insertion tube is designed to receive a base plate (51) of a tendon fixation plate and to at least partially introduce the base plate (51) into tissue or a bone and to receive the medial anchor inserter (10) inside the handpiece and the base plate insertion tube, wherein a releasable stop clamp (15) is used to temporarily prevent the medial anchor inserter (10) from being fully inserted into the base plate inserter (52).

2. The tool set of claim 1, wherein, A flange (61, 62) is configured on the medial anchor release tube (12) and on the base plate inserter (52), respectively.

3. A set of tools according to the preceding claim 2, characterized in that, The stop clamp (15) is designed as a positionally fixed bridge and / or is designed to prevent an axial displacement between the medial anchor release tube (12) and the base plate inserter (52) by form fit of the flanges (61, 62).

4. A set of tools according to any of the preceding claims 1 to 3, characterized in that, The stop clamp (15) is designed to be removable.

5. A set of tools according to any of the preceding claims 1 to 3, characterized in that The stop clamp (15) is designed in such a way that a first entry depth of the medial anchor (13) into the bone can be adjusted.

6. The tool set according to any one of claims 1 to 3, further comprising a lateral anchor inserter (20), wherein the lateral anchor inserter (20) comprises a lateral anchor drive spindle (21) and a lateral anchor release tube (22), wherein the lateral anchor release tube (22) is designed to receive the lateral anchor drive spindle (21), wherein the lateral anchor drive spindle (21) is designed to receive a lateral anchor (23) and to introduce the lateral anchor (23) into a bone.

7. The set of tools according to any one of claims 1 to 3, characterized in that, The medial anchor release tube (12) is designed at an end face of the medial anchor release tube (12) to rest on a rest contour of a medial anchor (13).

8. The set of tools according to claim 7, characterized in that The end face of the medial anchor release tube (12) together with the rest contour of the medial anchor (13) forms a first push-out mechanism, which enables the medial anchor (13) to be released from the medial anchor drive spindle (11).

9. The tool set of claim 6, wherein, The lateral anchor release tube (22) is designed at its end face to be supported on a support contour of the lateral anchor (23).

10. The set of tools according to claim 9, characterized in that, The end face of the lateral anchor release tube (22) together with the support contour of the lateral anchor (23) forms a second push-out mechanism which enables the lateral anchor (23) to be loosened from the lateral anchor drive spindle (21).

11. The tool set according to any one of claims 1 to 3, further comprising a re- impact tool (30) and a re-impact handpiece (32), the re-impact tool comprising a re- impact drive spindle (31).

12. The tool set according to any one of claims 1 to 3, further comprising a trocar (40).

13. The set of tools according to any one of claims 1 to 3, further comprising an inlay, wherein, The inlay is designed to receive the tendon fixation plate, the medial anchor (13) and the lateral anchor (23), wherein the inlay has markings for a single unambiguous distinction of the medial anchor (13) and the lateral anchor (23).

14. The set of tools according to claim 4, characterized in that, The stop clamp (15) is designed to be able to be pulled out.

15. The set of tools according to claim 5, characterized in that, The stop clamp (15) is designed slotted such that a first entry depth of the medial anchor (13) into the bone can be adjusted.

16. The tool set of claim 7, wherein, The medial anchor release tube (12) is designed at its end face to be supported on a flange surface of the medial anchor (13).

17. The kit of claim 8, wherein The end face of the medial anchor release tube (12) together with the flange surface of the medial anchor (13) forms a first push-out mechanism.

18. The kit of claim 9, wherein The lateral anchor release tube (22) is designed at its end face to be supported on a flange surface of the lateral anchor (23).

19. The kit of claim 10, wherein The end face of the lateral anchor release tube (22) together with the flange surface of the lateral anchor (23) forms a second push-out mechanism.

20. A system comprising a tendon fixation implant and a kit of tools for minimally invasively implanting the tendon fixation implant, wherein, The tendon fixation implant comprises a medial anchor (13), a lateral anchor (23) and a base plate (51), characterized in that the tool set is designed according to any one of the preceding claims.

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