Tool kit for implantation of tenodesis implant

Abstract

A tool kit for minimally invasive implantation of a tendon fixation implant comprising an inner anchor (13), an outer anchor (23), and a base plate (51) in the field of arthroscopic medicine, the tool kit comprising an inner anchor inserter (10), the inner anchor inserter (10) comprising an inner anchor drive mandrel (11) and an inner anchor release tube (12), the inner anchor release tube (12) being designed to receive the inner anchor drive mandrel (11), the inner anchor drive mandrel (11) being designed to perform both receiving the inner anchor (13) and inserting the inner anchor (13) into bone, the inner anchor drive mandrel (11) having a locking head (16) for fixing the inner anchor drive mandrel (11) to the inner anchor release tube (12), the tool kit.

Description

Detailed Description of the Invention

[0001] The present invention relates to the technical field of tools for minimally invasive implantation of tendon fixation implants in the field of arthroscopic medicine, and to a corresponding system comprising a tendon fixation implant and a tool kit for minimally invasive implantation of the tendon fixation implant.

[0002] Various tools for introducing implants are already known. Document EP 3 184 078 A1 discloses a corresponding system for binding tissue to bone, in addition to an implant for planar binding of tissue to bone, the system comprising at least one implant and at least one tool, the tool comprising gripping means and a shaft arranged to rotate in conjunction therewith.

[0003] Continuing from the prior art, the technical object of the present invention is to provide the possibility of introducing a tendon fixation implant in a manner that requires less effort and time.

[0004] In the context of the present invention, an anchor should be understood to mean a bone anchor, specifically a hollow anchor for bone.

[0005] Furthermore, in the context of the present invention, an inserter should be understood to mean an arthroscopic insertion tool.

[0006] Furthermore, in the context of the present invention, an inlay should be understood to mean a holding device for receiving and releasing at least one anchor. The inlay is part of the package and has the function of reliably protecting the anchor and the base plate from damage during storage or transportation. Furthermore, the inlay ensures easy removal of the tendon fixation implant. The anchor is held in position by elastic deformation of the receiving part of the inlay, and the base plate is held in position by a cap.

[0007] According to one aspect, the technical object of the present invention is achieved by a tool kit for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic medicine. The tendon fixation implant comprises an inner anchor, an outer anchor, and a base plate. The tool kit comprises an inner anchor inserter. The inner anchor inserter comprises an inner anchor drive mandrel and an inner anchor release tube. The inner anchor release tube is designed to receive the inner anchor drive mandrel. The inner anchor drive mandrel is designed to perform both the reception of the inner anchor and the introduction of the inner anchor into the bone. The inner anchor drive mandrel has a locking head for fixing the inner anchor drive mandrel to the inner anchor release tube.

[0008] Thus, advantageously, at least a part of the tendon fixation implant can be introduced particularly time-efficiently. The inner anchor can be received by the inner anchor drive mandrel, and the inner anchor drive mandrel can enable precise placement / rapid driving of the inner anchor onto / into the bone. In this case, the locking head provides a good possibility of stably fastening the anchor drive mandrel to the inner anchor release tube. Thereby, it is possible to significantly shorten the time required for performing the surgical intervention or introducing the tendon fixation implant.

[0009] In a technically advantageous embodiment, the tool kit further comprises a base plate inserter, a handpiece, and a base plate inserter tube. The base plate inserter tube is designed to receive the base plate of the tendon fixation plate and to introduce the base plate at least partially into the tissue or bone, and is designed to receive the inner anchor inserter within the handpiece and the base plate inserter tube, and the complete insertion of the inner anchor inserter into the base plate inserter is temporarily inhibited by a stopper clip.

[0010] Advantageously, this can additionally promote the introduction of at least a part of the tendon fixation implant, particularly in a time-efficient manner. The base plate can be stably and precisely introduced into the implantation position, and a part of the tendon fixation implant can be fastened step by step by the stopper clip. Furthermore, this can obtain an advantageous effect on the accuracy of the surgical intervention.

[0011] In a further technically advantageous embodiment, it is provided that respective collars are formed both on the inner anchor release tube and on the base plate inserter.

[0012] Advantageously, such collars can, for example, provide the possibility of enabling an interlocking engagement with any additional elements. The interlocking engagement with any additional elements can, on the one hand, be used to enable a defined insertion depth of the base plate inserter into the inner anchor release tube, and on the other hand, can be used to suppress detachment.

[0013] In a further technically advantageous embodiment, it is provided that the stopper clip is designed as a position-fixing bridge and / or is designed to suppress an axial offset that may occur between the inner anchor release tube and the base plate inserter by an interlocking mechanism by means of the collar.

[0014] In this way, it is advantageously possible to create a connection that can be closed or released quickly and easily. As a result, a further advantageous effect of accelerating the surgical intervention can be obtained.

[0015] In addition, in a technically advantageous embodiment, it is provided that the stopper clip is designed to be releasable, preferably removable, specifically, pullable.

[0016] As a result, it is possible to dispense with a complicated holding mechanism, and thus, the configuration of the tool kit can be simplified.

[0017] In a further technically advantageous embodiment, it is provided that a stopper clip is designed, specifically with slots, such that a first depth of insertion of the inner anchor into the bone is adjustable.

[0018] As a result, the introduction of the tenodesis implant can be made flexible and adapted appropriately to any requirements.

[0019] In an additionally technically advantageous embodiment, the tool kit further comprises an outer anchor inserter. The outer anchor inserter comprises an outer anchor drive mandrel and an outer anchor release tube. The outer anchor release tube is designed to receive the outer anchor drive mandrel. The outer anchor drive mandrel is designed to receive the outer anchor and introduce the outer anchor into the bone.

[0020] Advantageously, this can further facilitate the introduction of at least a part of the tenodesis implant, particularly in a time - efficient manner. The outer anchor can be received by the inner anchor drive mandrel, which can enable precise placement / rapid driving of the outer anchor onto / into the bone. As a result, it is additionally possible to significantly shorten the time required for performing the surgical intervention or introducing the tenodesis implant.

[0021] Also, in a technically advantageous embodiment, it is provided that the inner anchor release tube is designed to support the support contour of the inner anchor, specifically the collar surface, at the end face of the inner anchor release tube.

[0022] Advantageously, the force acting on the inner anchor and to be applied to drive the inner anchor into the bone can be distributed uniformly over the entire large area and onto the end face of the inner anchor, minimizing any damage during insertion. Thus, the inner anchor can be introduced into the bone easily and quickly, enabling additional time savings.

[0023] Furthermore, it is provided that the end face of the inner anchor release tube and the support contour of the inner anchor, specifically the collar surface, form a first extrusion mechanism by which the inner anchor can be released from the inner anchor drive mandrel.

[0024] Thus, advantageously, it is possible to quickly and reliably release the inner anchor from the inner anchor drive mandrel after introducing the inner anchor into the bone, while fixing the position of the inner anchor in the bone during that time.

[0025] It is further provided that the outer anchor release tube is designed at the end face of the outer anchor release tube to support the support contour of the outer anchor, specifically the collar surface.

[0026] Advantageously, the force acting on the outer anchor and to be applied to drive the outer anchor into the bone can be distributed uniformly over the entire large area and onto the end face of the outer anchor, minimizing any damage that may occur during insertion. Thus, the outer anchor can be introduced into the bone easily and quickly, enabling additional time savings.

[0027] It is further provided that the end face of the outer anchor release tube (22) and the support contour of the outer anchor (23), specifically the collar surface, form a second extrusion mechanism by which the outer anchor (23) can be released from the outer anchor drive mandrel (21).

[0028] Advantageously, therefore, the outer anchor can be quickly and reliably released from the outer anchor drive mandrel after being introduced into the bone, and during that time, the position of the outer anchor within the bone can be fixed.

[0029] Furthermore, in a technically advantageous embodiment, the tool kit further comprises a driving tool, which comprises a driving drive mandrel and a driving handpiece.

[0030] Advantageously, this allows further driving of the anchor of the tendon fixation implant.

[0031] Furthermore, in a technically advantageous embodiment, the tool kit further comprises a trocar.

[0032] Advantageously, this allows the surgeon to open the wound path during the surgical introduction of the tendon fixation implant and to keep the wound path open during the intervention.

[0033] Additionally, in a technically advantageous embodiment, the tool kit further comprises an inlay. The inlay is designed to receive the tendon fixation plate, the inner anchor, and the outer anchor, and the inlay has markings for clearly distinguishing the anchors.

[0034] Advantageously, this can achieve an advantageous effect on the rapid performance of the surgical intervention. This is because the inner anchor and the outer anchor can be quickly distinguished, and the correct anchor can be selected for each part of the intervention. Also, thus, at least the individual elements of the tendon fixation implant can be transported safely and protected from damage or contamination.

[0035] It is further provided that the inner anchor and / or the outer anchor can be introduced into the bone without using a hole, specifically, without using a pilot hole.

[0036] Thus, advantageously, additional working steps can be avoided and additional time reduction can be enabled.

[0037] According to a further aspect, the technical object of the present invention is achieved by a system comprising a tendon fixation implant having an inner anchor, an outer anchor, and a base plate, and a tool kit for minimally invasive implantation of the tendon fixation implant, the tool kit being designed as described in one of the preceding claims.

[0038] In this way, an accelerated and rapid surgical intervention for fixing tissue to bone can additionally and advantageously be enabled.

[0039] Exemplary embodiments of the present invention are illustrated in the drawings and will be described in more detail below.

[0040] All of the features described in conjunction with the individual embodiments of the present invention may be provided in various combinations in the subject matter according to the present invention in order to simultaneously realize their advantageous effects.

[0041] The scope of protection of the present invention is defined by the claims and is not limited by the features described in the specification or shown in the figures.

[0042] The drawings are as follows.

Brief Description of the Drawings

[0043]

Figure 1

Figure 2

Figure 3

Figure 4

Best Mode for Carrying Out the Invention

[0044] FIG. 1 shows a schematic view of a system equipped with a tool kit for minimally invasive implantation of a tendon fixation implant, and the tendon fixation implant is shown positioned on the tool kit.

[0045] Here, the illustrated tendon fixation implant includes an inner anchor 13 having an inner anchor head 14, a base plate 51, and an outer anchor 23.

[0046] The illustrated tool kit includes a trocar 40 having a trocar tube 41, a driving tool 30 having a driving mandrel 31 and a driving handpiece 32, and an outer anchor inserter 20 having an outer anchor driving mandrel 21 and an outer anchor release tube 22. Further, the illustrated tool kit includes an inner anchor inserter handpiece 17, an inner anchor driving mandrel 11, an inner anchor release tube 12, a locking head 16, and an inner anchor inserter 10 having a stopper clip 15 with a slot 18.

[0047] Furthermore, a collar 61 of the release tube and a collar 62 of the base plate inserter are shown. The stopper clip 15 is designed as a position fixing bridge and, in cooperation with the collars 61, 61, suppresses an axial offset that may occur between the inner anchor release tube 12 and the base plate inserter 52 by an interlock mechanism. Thus, for example, it is possible to prevent the inner anchor from being inserted too deeply into the bone (not shown).

[0048] In the interaction between the individual elements of the inner anchor inserter, due to the action of the force introduced onto the locking head 16, first, the inner anchor can be partially introduced into the bone (not shown in FIG. 1), and by means of the slot 18 of the stopper clip 15, and subsequently, as a result of removing the stopper clip 15, the inner anchor can be further introduced into the aforementioned bone. Additionally, in order to obtain greater flexibility in surgical interventions, it is conceivable that the slot width of the slot 18 can be made adjustable by a mechanism (without a more detailed definition), for example, an adjustment screw.

[0049] The stopper clip 15 is designed to be releasable and removable, and can be pulled out radially, time - efficiently and easily with respect to the anchor inserter 10, enabling the surgeon to work quickly. Subsequently, the outer anchor 23 can likewise be quickly introduced into the bone by means of the outer anchor inserter 20.

[0050] FIG. 2 shows a schematic detailed view of the tip of the inner anchor inserter 10 shown in FIG. 1. The inner anchor 13 is held in a state of being inserted onto the inner anchor drive mandrel 12, and it is shown that the inner anchor drive mandrel is inserted into the inner anchor release tube 12. In regard to that part, it is shown that the inner anchor release tube 12 is inserted into the base plate inserter 52, and the base plate 51 is located on the aforementioned inserter. The base plate 51 has an opening not more detailedly defined, and through the opening, the outer anchor 23 shown in FIG. 1 or FIG. 3 can be quickly introduced by means of the outer anchor inserter 20.

[0051] It is also shown that the inner anchor release tube 12 is designed to support the support contour of the inner anchor 13, for example, the collar surface, at the end face (without more detailed definition). This is similarly shown for the outer anchor release tube and the outer anchor in FIG. 3. In FIG. 3, the outer anchor release tube is designed to support the support contour of the outer anchor, for example, the collar surface 14, at the end face (similarly without more detailed definition).

[0052] Comparing FIGS. 1 and 2, it can be seen that the stopper clip 15 temporarily inhibits the complete insertion of the inner anchor 13 into the base plate 51 of the inner anchor. This means that the head 14 of the inner anchor remains on the base plate 51.

[0053] Furthermore, the inner anchor 13 has a block element in the form of a return 13a.

[0054] In a further embodiment, the inner anchor 13 can also have (similarly) a block element corresponding to the outer anchor 23, which has further protruding returns or claws 23a. Preferably, these claws 23a can also be formed (similarly) offset by 90° in the circumferential direction in cross-section, or can be formed as alternating returns and claws, rotated by 90° with respect to the axis of symmetry in each case.

[0055] FIG. 3 shows a schematic detailed view of the tip of the outer anchor inserter 20 shown in FIG. 1. The outer anchor 23 is held in a state of being inserted onto the outer anchor drive mandrel, and the outer anchor drive mandrel is positioned within the outer anchor release tube 22.

[0056] Furthermore, the outer anchor 23 has a block element in the form of a claw 23a.

[0057] FIG. 4 shows a schematic view of a stopper clip 15 having a slot 18. A comparison of FIG. 4 with FIG. 1 shows how the stopper clip 15, in cooperation with the collar 61 of the release tube and the collar of the base plate inserter, releasably inhibits excessive or insufficient insertion of the inner anchor.

[0058] All the features described in conjunction with the individual embodiments of the present invention may be provided in various combinations in the subject matter according to the present invention in order to simultaneously achieve their advantageous effects.

[0059] The scope of protection of the present invention is defined by the claims and is not limited by the features described in the specification or shown in the figures.

Explanation of Reference Signs

[0060] [List of Reference Signs] 10… inner anchor inserter, 11… inner anchor drive mandrel, 12… inner anchor release tube, 13… inner anchor, 13a… return, 14… head of inner anchor, 15… stopper clip, 16… locking head, 17… handpiece of inner anchor inserter, 18… slot, 20… outer anchor inserter, 21… outer anchor drive mandrel, 22… outer anchor release tube, 23… outer anchor, 23a… claw, 30… impact tool, 31… impact drive mandrel, 32… impact handpiece, 40… trocar, 41… trocar tube, 51… base plate, 52… base plate inserter, 52… base plate inserter tube, 53… return / tab, 54… mark, 61… collar of release tube, 62… collar of base plate inserter.

Claims

1. A tool kit for minimally invasive implantation of a tendon fixation implant comprising an inner anchor (13), an outer anchor (23), and a base plate (51) in the field of arthroscopic medicine, wherein the tool kit comprises an inner anchor inserter (10), the inner anchor inserter (10) comprises an inner anchor drive mandrel (11) and an inner anchor release tube (12), the inner anchor release tube (12) is designed to receive the inner anchor drive mandrel (11), the inner anchor drive mandrel (11) is designed to both receive the inner anchor (13) and introduce the inner anchor (13) into the bone by driving the inner anchor (13) into the bone, the inner anchor drive mandrel (11) has a locking head (16) for fixing the inner anchor drive mandrel (11) to the inner anchor release tube (12), a tool kit, comprises a base plate inserter (52), the base plate inserter (52) comprises a handpiece and a base plate inserter tube (52), the base plate inserter tube (52) is designed to receive the base plate (51) of the tendon fixation plate and to at least partially introduce the base plate (51) into tissue or bone, and is designed to receive the inner anchor inserter (10) within the handpiece and the base plate inserter tube (52), a releasable stopper clip (15) temporarily prevents complete insertion of the inner anchor inserter (10) into the base plate inserter (52), characterized by a tool kit.

2. The tool kit according to claim 1, characterized in that respective collars (61, 62) are formed on both the inner anchor release tube (12) and the base plate inserter (52).

3. The stopper clip (15) is designed as a position-fixing bridge and / or is designed to suppress, by means of an interlock mechanism, an axial offset that may occur between the inner anchor release tube (12) and the base plate inserter (52) by the color (61, 62). The tool kit according to claim 2, characterized in that.

4. The stopper clip (15) is designed to be releasable. The tool kit according to claim 1 or 2, characterized in that.

5. The stopper clip (15) is designed to be removable. The tool kit according to claim 4, characterized in that.

6. The stopper clip (15) is designed to be pullable out. The tool kit according to claim 5, characterized in that.

7. The stopper clip (15) is designed such that a first depth of insertion of the inner anchor (13) into the bone is adjustable. The tool kit according to claim 1 or 2, characterized in that.

8. The stopper clip (15) is designed with slots. The tool kit according to claim 7, characterized in that.

9. Further comprising an outer anchor inserter (20), The outer anchor inserter (20) comprises an outer anchor drive mandrel (21) and an outer anchor release tube (22), The outer anchor release tube (22) is designed to receive the outer anchor drive mandrel (21), The outer anchor drive mandrel (21) is designed to receive the outer anchor (23) and introduce the outer anchor (23) into the bone. The tool kit according to claim 1 or 2.

10. The inner anchor release tube (12) is designed to support a support contour of the inner anchor (13) at an end face of the inner anchor release tube (12). The tool kit according to claim 1 or 2, characterized in that.

11. The inner anchor release tube (12) is designed to support a collar surface of the inner anchor (13) at the end face of the inner anchor release tube (12). The tool kit according to claim 10, characterized in that.

12. The end face of the inner anchor release tube (12) and the support contour of the inner anchor (13) form a first extrusion mechanism, and the inner anchor (13) can be released from the inner anchor drive mandrel (11) by the first extrusion mechanism. The tool kit according to claim 11, characterized in that.

13. The end face of the inner anchor release tube (12) and the collar surface of the inner anchor (13) form the first extrusion mechanism. The tool kit according to claim 12, characterized in that.

14. The outer anchor release tube (22) is designed to support the support contour of the outer anchor (23) at the end face of the outer anchor release tube (22). The tool kit according to claim 9, characterized in that.

15. The outer anchor release tube (22) is designed to support the collar surface of the outer anchor (23) at the end face of the outer anchor release tube (22). The tool kit according to claim 14, characterized in that.

16. The end face of the outer anchor release tube (22) and the support contour of the outer anchor (23) form a second extrusion mechanism, and the outer anchor (23) can be released from the outer anchor drive mandrel (21) by the second extrusion mechanism. The tool kit according to claim 15, characterized in that.

17. The end face of the outer anchor release tube (22) and the collar surface of the outer anchor (23) form the second extrusion mechanism. The tool kit according to claim 16, characterized in that.

18. Further comprising a chasing tool (30), the chasing tool (30) comprising a chasing drive mandrel (31) and a chasing handpiece (32). The tool kit according to claim 1 or 2.

19. Further comprising a trocar (40). The tool kit according to claim 1 or 2.

20. Further comprising an inlay, the inlay being designed to receive the tendon fixation plate, the inner anchor (13), and the outer anchor (23), and the inlay (50) having a mark (54) for clearly distinguishing the inner anchor (13) from the outer anchor (23). The tool kit according to claim 9.

21. A system comprising a tendon fixation implant having an inner anchor (13), an outer anchor (23), and a base plate (51), and a tool kit for minimally invasive implantation of the tendon fixation implant, wherein the tool kit is designed as described in claim 1 or 2. System.

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