Tool set for implanting tendon fixation implant

Abstract

The invention relates to a tool set for minimally invasive implantation of a tendon fixation implant in the arthroscopic human medical field, the tendon fixation implant comprising a medial anchor (13), a lateral anchor (23) and a base plate (51), the tool set comprising a medial anchor inserter (10), the medial anchor inserter (10) being configured to insert the medial anchor (13) into the base plate (51), and the lateral anchor (23) being configured to insert the medial anchor (13) into the base plate (51). The medial anchor inserter (10) comprises a medial anchor drive mandrel (11) and a medial anchor release tube (12), the medial anchor release tube (12) is designed to receive the medial anchor drive mandrel (11), the medial anchor drive mandrel (11) is designed to receive a medial anchor (13) and to introduce the medial anchor (13) into a bone, and the medial anchor release tube (12) is designed to release the medial anchor (13) from the medial anchor drive mandrel (11). Wherein the inboard anchor drive mandrel (11) has a locking head (16) for locking the inboard anchor drive mandrel (11) on the inboard anchor release tube (12).

Description

Technical Field

[0001] The invention relates to the technical field of tools for minimally invasive implantation of a tenodesis implant in the field of arthroscopic human medicine, and to a corresponding system comprising a tenodesis implant and a tool set for minimally invasive implantation of a tenodesis implant. Background Art

[0002] Various tools for introducing implants are known. In addition to disclosing an implant for connecting tissue to bone in a planar manner, document EP 3 184 078 A1 discloses a corresponding system for connecting tissue to bone, which comprises at least one implant and at least one tool, wherein the tool comprises in particular a handle and a shaft arranged non-rotatably thereon. Summary of the invention

[0003] Based on the prior art, the technical object of the present invention is to propose a possible concept for introducing a tenodesis implant with reduced effort and time.

[0004] An anchor within the meaning of the present invention is understood to be a bone anchor, in particular a hollow anchor for bones.

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

[0006] Furthermore, within the meaning of the present invention, an inlay is understood to be 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 safely from damage during storage or transport. Furthermore, the inlay ensures easy removal of the tenodesis implant. The anchor is held in place by elastic deformation of the inlay receptacle, wherein the base plate is held in place by the cover.

[0007] According to one aspect, the technical purpose of the present invention is achieved by a tool set for minimally invasively implanting a tendon fixation implant in the field of arthroscopic human medicine, wherein the tendon fixation implant includes a medial anchor, a lateral anchor and a base plate, wherein the tool set includes a medial anchor inserter, wherein the medial anchor inserter includes a medial anchor drive mandrel and a medial anchor release tube, wherein the medial anchor release tube is designed to receive the medial anchor drive mandrel, wherein the medial anchor drive mandrel is designed to receive the medial anchor and introduce the medial anchor into the bone, wherein the medial anchor drive mandrel has a locking head for locking the medial anchor drive mandrel on the medial anchor release tube.

[0008] Advantageously, at least some parts of the tenodesis implant can thus be introduced in a particularly time-saving manner. The medial anchor drive mandrel can be used to receive the medial anchor, which allows for an accurate positioning of the medial anchor on the bone and for a rapid insertion of the medial anchor. The locking head provides an inexpensive and feasible solution for stably fixing the anchor drive mandrel to the medial anchor release tube. The time required during surgery or for inserting the tenodesis implant can thereby be significantly reduced.

[0009] In a technically advantageous embodiment, the tool kit also includes a base inserter, a handpiece and a base insertion tube, wherein the base insertion tube is designed to receive a base of a tendon fixation plate, and is designed to at least partially introduce the base into tissue or bone, and is designed to receive a medial anchor inserter inside the handpiece and the base insertion tube, wherein a stop clip is used to temporarily prevent the medial anchor inserter from being fully inserted into the base inserter.

[0010] This can also advantageously facilitate a particularly time-saving insertion of at least some parts of the tenodesis implant. The base plate can be inserted stably and precisely into the implantation site and the individual parts of the tenodesis implant can be fixed step by step using retaining clips. Furthermore, this can have a favorable effect on the precision of the surgical procedure.

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

[0012] Such a flange provides the possibility of advantageously implementing further elements that may act, for example, in a form-fitting manner, which can serve, on the one hand, to insert the base plate inserter into the inner anchor release tube to a defined depth and, on the other hand, to prevent slipping out.

[0013] In a further technically advantageous embodiment, it is provided that the retaining clip is designed as a stationary bridge and / or is designed to prevent possible axial displacement between the inner anchor release tube and the base plate inserter by means of a collar in a form-fitting manner.

[0014] This advantageously makes it possible to provide a connection which can be closed or released quickly and easily, which can also have an advantageous accelerating effect on the surgical procedure.

[0015] Furthermore, in a technically advantageous embodiment it is provided that the locking clip is designed to be releasable, preferably removable, in particular pullable.

[0016] As a result, possibly complex holding mechanisms can be omitted and a simple design of the tool set can thus be achieved.

[0017] In a further technically advantageous embodiment, it is provided that the retaining clip is designed, in particular, to be slotted, so that a first insertion depth of the medial anchor into the bone can be adjusted.

[0018] The insertion of the tenodesis implant can thereby be adjusted flexibly and accordingly to possible requirements.

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

[0020] This can also advantageously facilitate a particularly time-saving introduction of at least some parts of the tenodesis implant. The medial anchor drive mandrel can be used to receive the lateral anchor, which allows precise positioning of the lateral anchor on the bone and rapid insertion. The time required during surgery or for inserting the tenodesis implant can thus be significantly reduced in addition.

[0021] Furthermore, in a technically advantageous embodiment it is provided that the inner anchor release tube is designed at its end face for support on a support contour, in particular a flange surface, of the inner anchor.

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

[0023] Furthermore, it is provided that the end face of the inner anchor release tube together with the supporting contour of the inner anchor, in particular the flange surface, forms a first ejection mechanism which enables the inner anchor to be released from the inner anchor drive spindle.

[0024] Advantageously, the medial anchor can then be smoothly and safely released 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] Furthermore, it is provided that the outer anchor release tube is designed at its end face for support on a support contour, in particular a flange surface, of the outer anchor.

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

[0027] Furthermore, it is provided that the end face of the outer anchor release tube (22) together with the supporting contour of the outer anchor (23), in particular the flange surface, forms a second ejection mechanism, which enables the outer anchor (23) to be released from the outer anchor drive spindle (21).

[0028] Advantageously, the lateral anchor can then be released smoothly and safely from the lateral anchor drive spindle after it has been inserted into the bone 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, wherein the re-impact tool comprises a re-impact drive spindle.

[0030] This may advantageously enable the anchor of the tenodesis implant to be pushed further in.

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

[0032] This advantageously provides the surgeon with the ability to open the wound channel during surgical insertion of the tenodesis implant and to keep it open during the procedure.

[0033] In a further technically advantageous embodiment, the kit further comprises an inlay, wherein the inlay is designed to receive the tenodesis plate, the medial anchor and the lateral anchor, wherein the inlay has markings for a single unambiguous distinction between the anchors.

[0034] This has a favorable effect on the smooth performance of the surgical operation, since a quick distinction can be made between the medial and lateral anchors and the correct anchor can be selected for the respective part of the operation. In addition, at least the individual elements of the tenodesis implant can thus be safely transported and protected from damage or contamination.

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

[0036] Advantageously, additional work steps can thus be saved and additional time reductions can be achieved.

[0037] According to another aspect, the technical purpose of the present invention is achieved by a system comprising a tendon fixation implant and a tool set for minimally invasively implanting the tendon fixation implant, wherein the tendon fixation implant comprises a medial anchor, a lateral anchor and a base plate, wherein the tool set is designed according to any one of the preceding claims.

[0038] This may also advantageously allow for an accelerated and smoother surgical procedure for fixing tissue to bone.

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

[0040] All features explained in conjunction with the individual embodiments of the invention may be provided in different combinations in the subject matter according to the invention in order to achieve their advantageous effects simultaneously.

[0041] The scope of protection of the present invention is given by the claims and is not limited by the features explained in the description or shown in the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings show:

[0043] Figure 1 is a schematic diagram of a system including a tool set and a tenodesis implant fixed thereto;

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

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

[0046] Figure 4 is a schematic diagram of the retaining clip. DETAILED DESCRIPTION

[0047] Figure 1 is a schematic diagram of a system including a tool set for minimally invasively implanting a tenodesis implant shown on the tool set.

[0048] Here, the tenodesis implant shown comprises a medial anchor 13 having a head 14 of the medial anchor, a base plate 51 and a lateral anchor 23 .

[0049] The tool set shown includes a trocar 40 with a trocar tube 41, a re-impact tool 30 with a re-impact drive mandrel 31 and a re-impact handpiece 32, and an outer anchor inserter 20 with an outer anchor drive mandrel 21 and an outer anchor release tube 22. In addition, the tool set shown includes an inner anchor inserter 10 with a handpiece 17 of the inner anchor inserter, an inner anchor drive mandrel 11, an inner anchor release tube 12, a locking head 16, and a retaining clip 15 with a slot 18.

[0050] In addition, the flange of the release tube 61 and the flange of the base inserter 62 are shown. The retaining clip 15 is designed as a fixed-position bridge and prevents any possible axial displacement between the medial anchor release tube 12 and the base inserter 52 in a form-fitting manner in cooperation with the flanges 61, 61. This can prevent the medial anchor from penetrating too deeply into a bone (not shown), for example.

[0051] In the interaction between the individual elements of the medial anchor inserter, the medial anchor can first be partially introduced into the inner portion due to the slot 18 of the retaining clip 15 by the force exerted on the locking head 16. Figure 1 In the bone not shown in the figure, it is then further introduced into the bone after removing the retaining clip 15. It is also conceivable that the slot width of the slot 18 can be adjusted by a mechanism not shown in detail, such as an adjusting screw, so that greater flexibility can be achieved during surgery.

[0052] The retaining clip 15 is designed to be loose, removable, and can be pulled out in a time-saving and simple manner along the radial direction of the anchor inserter 10, which enables the surgeon to work smoothly. Then the lateral anchor inserter 20 can be used to introduce the lateral anchor 23 into the bone equally smoothly.

[0053] Figure 2 yes Figure 1 Schematic detailed view of the tip of the medial anchor inserter 10 shown in FIG. The medial anchor 13 is held inserted on the medial anchor drive mandrel 12, wherein the medial anchor drive mandrel is shown inserted into the medial anchor release tube 12. The medial anchor release tube 12 itself is shown inserted into the substrate inserter 52, wherein the substrate 51 is located on the substrate inserter. The substrate 51 has an opening that is not shown in detail, Figure 1 or Figure 3 The outer anchor 23 shown in FIG. 1 can be smoothly inserted through the opening with the help of the outer anchor inserter 20 .

[0054] Furthermore, it is shown that the inner anchor release tube 12 is designed at the end face, which is not indicated in detail, for bearing on a supporting contour, for example a flange surface, of the inner anchor 13. Figure 3The outer anchor release tube and the outer anchor are similarly shown in FIG. Figure 3 The outer anchoring element 14 is provided at an end face, which is likewise not indicated in detail, for support on a support contour, for example a flange surface, of the outer anchoring element 14 .

[0055] Combination Figure 1 and Figure 2 It can also be seen that the retaining clip 15 temporarily prevents the inner anchor 13 from being fully inserted into the base plate 51 , ie the head 14 of the inner anchor rests on the base plate 51 .

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

[0057] In another embodiment, the inner anchor 13 can also have a locking element corresponding to the outer anchor 23, which has a further protruding barb or detent 23a (similar). Preferably, these detents 23a (similar) can also be configured as circumferential, locally offset by 90°, or alternatively as barbs and detents, which each have an axis of symmetry rotated 90° relative to each other.

[0058] Figure 3 yes Figure 1 Schematic detail view of the tip of the outer anchor inserter 20 shown in . The outer anchor 23 remains inserted on the outer anchor drive mandrel, wherein the outer anchor drive mandrel is located inside the outer anchor release tube 22.

[0059] Furthermore, the outer anchor 23 has a locking element in the form of a locking pawl 23 a.

[0060] Figure 4 is a schematic diagram of a retaining clip 15 having a slot 18. Figure 4 and Figure 1 It is shown how the retaining clip 15 interacts with the flange of the release tube 61 and the flange of the substrate inserter to releasably prevent the inner anchor from being inserted too far or too little.

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

[0062] The scope of protection of the present invention is given by the claims and is not limited by the features explained in the description or shown in the drawings.

[0063] List of Reference Numerals

[0064] 10Medial Anchor Inserter

[0065] 11Inner anchor drive mandrel

[0066] 12Inner anchor release tube

[0067] 13 Medial anchor

[0068] 13a Barb

[0069] 14 Medial anchor head

[0070] 15 Stop clip

[0071] 16 Locking Head

[0072] 17 Handpiece of the Medial Anchor Inserter

[0073] 18 slots

[0074] 20 Lateral Anchor Inserter

[0075] 21 Outer anchor drive mandrel

[0076] 22 Outer Anchor Release Tube

[0077] 23 Outer anchor

[0078] 23a Locking pawl

[0079] 30 re-impact tool

[0080] 31 Impact the drive shaft again

[0081] 32 Re-impact handpiece

[0082] 40 needle sets

[0083] 41 sets of needles

[0084] 51 substrate

[0085] 52 Substrate Inserter

[0086] 52 substrate intubation

[0087] 53 Barb / Tag

[0088] 54 Mark

[0089] 61 Release tube flange

[0090] 62 Flange of substrate inserter.

Claims

1. A tool set for minimally invasive implantation of a tendon fixation implant in arthroscopic human medicine, wherein: The tenodesis implant comprises a medial anchor (13), a lateral anchor (23) and a base plate (51). It is characterized in that The kit comprises a medial anchor inserter (10), The inner anchor inserter (10) comprises an inner anchor driving mandrel (11) and an inner anchor releasing tube (12). Wherein, the inner anchor release tube (12) is designed to receive the inner anchor drive core shaft (11), The inner anchor driving mandrel (11) is designed to receive the inner anchor (13) and introduce the inner anchor (13) into the bone. The inner anchor driving mandrel (11) has a locking head (16) for locking the inner anchor driving mandrel (11) on the inner anchor releasing tube (12).

2. The tool set according to any one of the preceding claims, further comprising a substrate inserter (52) comprising a hand piece and a substrate insertion tube (52), in, The base plate insertion tube (52) is designed to receive the base plate (51) of the tenodesis plate, and is designed to at least partially introduce the base plate (52) into tissue or bone, and is designed to receive the medial anchor inserter (10) inside the handpiece and the base plate insertion tube (52), A stop clip (15) is used to temporarily prevent the medial anchor inserter (10) from being fully inserted into the base inserter (52).

3. A tool set according to any one of the preceding claims, characterised in that Flanges (61, 62) are respectively configured on the inner anchor release tube (12) and on the substrate inserter (52).

4. A tool set according to any one of claims 2 or 3, characterized in that The retaining clip (15) is designed as a fixed-position bridge and / or is designed to prevent possible axial displacement between the inner anchor release tube (12) and the substrate inserter (52) by means of a positive fit with the flanges (61, 62).

5. A tool set according to any one of the preceding claims 2 to 4, characterized in that The locking clip (15) is designed to be releasable, preferably removable, in particular pullable.

6. A tool set according to any one of the preceding claims 2 to 5, characterized in that The retaining clip (15) is in particular designed to be slotted so that a first insertion depth of the medial anchor (13) into the bone can be adjusted.

7. A tool kit according to any one of the preceding claims, further comprising The outer anchor inserter (20) in, The outer anchor inserter (20) comprises an outer anchor driving mandrel (21) and an outer anchor releasing tube (22). The outer anchor release tube (22) is designed to receive the outer anchor drive mandrel (21). The outer anchor driving mandrel (21) is designed to receive the outer anchor (23) and introduce the outer anchor (23) into the bone.

8. A tool kit according to any one of the preceding claims, characterised in that The inner anchor release tube (12) is designed at the end face of the inner anchor release tube (12) to be supported on a support contour, in particular a flange surface, of the inner anchor (13).

9. The tool set according to claim 8, characterized in that: The end surface of the inner anchor release tube (12) forms a first ejection mechanism together with the support contour, in particular the flange surface, of the inner anchor (13), which enables the inner anchor (13) to be released from the inner anchor drive spindle (11).

10. A tool set according to any one of the preceding claims, characterised in that The outer anchor release tube (22) is designed at the end face of the outer anchor release tube (22) to be supported on a support contour, in particular a flange surface, of the outer anchor (23).

11. The tool set according to claim 10, characterized in that: The end surface of the outer anchor release tube (22) forms a second ejection mechanism together with the supporting contour, in particular the flange surface, of the outer anchor (23), which enables the outer anchor (23) to be released from the outer anchor drive spindle (21).

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

13. A kit according to any one of the preceding claims, further comprising a trocar (40).

14. A kit according to any one of the preceding claims, further comprising an inlay, wherein: The inlay is designed to receive the tenodesis plate, the medial anchor (13) and the lateral anchor (23), wherein the inlay (50) has a marking (54) for single and unambiguous differentiation between the anchors (13, 23).

15. A tool set according to any one of the preceding claims, characterised in that The medial anchor (13) and / or the lateral anchor (23) can be introduced into the bone without drilling, in particular without pre-drilling.

16. A system comprising a tenodesis implant and a tool set for minimally invasively implanting the tenodesis implant, wherein: The tenodesis implant comprises a medial anchor (13), a lateral anchor (23) and a base plate (51), characterised in that the kit is designed according to any of the preceding claims.

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