TOOL SET FOR THE IMPLANTATION OF A TENDON FIXATION IMPLANT

Description

[0001] The present invention relates to the technical field of tools for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic human medicine, as well as corresponding systems comprising a tendon fixation implant and a set of tools for minimally invasive implantation of the tendon fixation implant.

[0002] Various tools for inserting implants are already known. For example, instruments suitable for minimally invasive tendon surgery are known from EP 3 020 371 A2 and EP 2 020 372 A1. Tendon fixation implants are also known, for example, from CA 3 186 602 A1. EP 3 184 078 A1 discloses, in addition to an implant for the surface 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 includes, among other things, a handle and a shaft fixed to it in a rotationally fixed manner.

[0003] Based on the state of the art, the technical objective of the invention is to create a possibility for the insertion of tendon fixation implants with reduced effort and time expenditure.

[0004] For the purposes of the invention, an anchor is to be understood as a bone anchor, in particular a hollow anchor for bones.

[0005] Furthermore, for the purposes of the invention, an inserter is to be understood as an arthroscopic insertion tool.

[0006] Furthermore, for the purposes of the invention, an inlay is understood to be a holding device for receiving and releasing at least one anchor. The inlay is part of a package, the function of which is to protect the anchors and the base plate from damage during storage or transport. In addition, the inlay ensures easy removal of the tendon fixation implant. The anchors are held in position by means of an elastic deformation of a receptacle in the inlay, with the base plate being held in position by a cap.

[0007] According to one aspect, the technical problem of the invention is solved by means of a tool set for the 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 tool set comprises a medial anchor inserter, wherein the medial anchor inserter comprises 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 both to receive a medial anchor and to insert the medial anchor into bone, and wherein the medial anchor drive mandrel has a locking head for locking the medial anchor drive mandrel to the medial anchor release tube.

[0008] This allows for a particularly time-efficient insertion of at least parts of the tendon fixation implant. The medial anchor can be picked up using the medial anchor drive mandrel, enabling precise placement and rapid insertion of the medial anchor into the bone. The locking head provides a convenient way to securely attach the anchor drive mandrel to the medial anchor release tube. This significantly reduces the time required for surgical procedures or for inserting the tendon fixation implant.

[0009] The tool set further comprises a base plate inserter, a handpiece and a base plate inserter tube, wherein the base plate inserter tube is designed to receive the base plate of the tendon fixation plate, and is designed to at least partially insert the base plate into tissue or bone, and is designed to receive the medial anchor inserter within the handpiece and the base plate inserter tube, wherein a releasable stopper clip temporarily prevents complete penetration of the medial anchor inserter into the base plate inserter.

[0010] This can also be advantageous for the particularly time-efficient insertion of at least parts of the tendon fixation implant. The base plate can be inserted stably and precisely at the implantation site, and the stopper clip allows for the step-by-step securing of the tendon fixation implant components. Furthermore, this can have a positive impact on the accuracy of the surgical procedure.

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

[0012] Such collars offer the advantage of enabling, for example, a form-fitting engagement of any further elements, which can be used on the one hand to enable a defined penetration depth of the base plate inserter into the medial anchor release tube and on the other hand to prevent slippage.

[0013] In a further technically advantageous embodiment, it is provided that the stopper clip is designed as a fixing bridge and / or is designed by means of the collars to be form-fitting and to prevent any axial displacement possible between the medial anchor release tube and the base plate inserter.

[0014] This allows for the creation of a connection that can be quickly and easily closed or disconnected, which can also have a beneficial, accelerating effect on a surgical procedure.

[0015] Furthermore, in a technically advantageous embodiment, the stopper clip is designed to be removable, in particular peelable.

[0016] This eliminates the need for any complex holding mechanisms and allows for a simple design of the tool set.

[0017] In a further technically advantageous embodiment, the stopper clip is designed, in particular slotted, in such a way that a first penetration depth of the medial anchor into the bone is adjustable.

[0018] This allows the insertion of the tendon fixation implant to be flexibly adapted to any requirements.

[0019] In a further technically advantageous embodiment, the tool set further comprises a lateral anchor inserter, wherein the lateral anchor inserter comprises a lateral anchor drive mandrel and a lateral anchor release tube, wherein the lateral anchor release tube is designed to receive the lateral anchor drive mandrel, and wherein the lateral anchor drive mandrel is designed to receive a lateral anchor and to insert the lateral anchor into bone.

[0020] This can also be advantageous for the particularly time-efficient insertion of at least parts of the tendon fixation implant. The lateral anchor can be received using the medial anchor drive mandrel, which allows for precise placement and rapid driving of the lateral anchor into the bone. This can significantly reduce the time required for a surgical procedure or for inserting the tendon fixation implant.

[0021] Furthermore, in a technically advantageous embodiment, it is provided that the medial anchor release tube is formed on an end face of the medial anchor release tube for support against a support contour, in particular a collar surface, of the medial anchor.

[0022] Advantageously, the force required to drive the medial anchor into bone can be distributed over a large area and evenly across an end face of the medial anchor, minimizing potential damage during insertion. This allows the medial anchor to be inserted into the bone easily and quickly, potentially reducing the procedure time.

[0023] Furthermore, it is provided that the end face of the medial anchor release tube, together with the support contour, in particular the collar surface, of the medial anchor, forms a first push-off mechanism that enables the medial anchor to be released from the medial anchor drive mandrel.

[0024] Advantageously, the medial anchor can be quickly and safely detached from the medial anchor drive pin after its insertion into the bone, and held fixed in its position in the bone during this process.

[0025] Furthermore, it is provided that the lateral anchor release tube is designed on an end face of the lateral anchor release tube for support against a support contour, in particular a collar surface, of the lateral anchor.

[0026] Advantageously, the force required to drive the lateral anchor into bone can be distributed over a large area and evenly across an end face of the lateral anchor, minimizing potential damage during insertion. This allows the lateral anchor to be inserted into the bone easily and quickly, resulting in further time savings.

[0027] Furthermore, it is provided that the end face of the lateral anchor release tube (22) with the support contour, in particular the collar surface, of the lateral anchor (23) forms a second push-off mechanism that enables the lateral anchor (23) to be released from the lateral anchor drive mandrel (21).

[0028] Advantageously, the lateral anchor can be quickly and safely detached from the lateral anchor drive pin after it has been inserted into the bone, and held fixed in its position in the bone during this process.

[0029] Furthermore, in a technically advantageous embodiment, the tool set also includes a re-threading tool comprising a re-threading mandrel and a re-threading handpiece.

[0030] This can advantageously facilitate further driving in of the anchors of the tendon fixation implant.

[0031] Furthermore, in a technically advantageous embodiment, the tool set also includes a trocar.

[0032] This offers the surgeon the advantage of being able to open a wound channel during the surgical insertion of the tendon fixation implant and to keep it open during the procedure.

[0033] In a further technically advantageous embodiment, the tool set further comprises an inlay, wherein the inlay is designed to receive the tendon fixation plate, the medial anchor, and the lateral anchor, and wherein the inlay has a marking for clearly distinguishing the anchors.

[0034] This can be advantageous for a swift execution of the surgical procedure, as it allows for a quick distinction between the medial and lateral anchors and the selection of the correct anchor for each stage of the procedure. Furthermore, at least individual components of the tendon fixation implant can thus be transported safely and protected from damage or contamination.

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

[0036] This can advantageously save additional work steps and enable a further reduction in time.

[0037] According to another aspect, the technical problem of the invention is solved by means of a system comprising a tendon fixation implant and a tool set for minimally invasive implantation of 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 a faster and quicker surgical procedure for fixing tissue to bone.

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

[0040] All features described in connection with individual embodiments of the invention can be provided in different combinations in the object according to the invention in order to simultaneously realize their advantageous effects.

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

[0042] They show: Fig. 1 a schematic view of a system comprising a tool set with a tendon fixation implant attached thereto; Fig. 2 a schematic detail view of the tip of the medial anchor inserter; Fig. 3 a schematic detail view of the tip of the lateral anchor inserter; and Fig. 4 a schematic view of a stopper clip.

[0043] Figure 1 Figure 1 shows a schematic view of a system comprising a tool set for minimally invasive implantation of a tendon fixation implant shown on the tool set.

[0044] The tendon fixation implant shown here comprises a medial anchor 13 with head of the medial anchor 14, a base plate 51, and a lateral anchor 23.

[0045] The illustrated tool set comprises a trocar 40 with a trocar tube 41, a resetting tool 30 with a resetting mandrel 31 and a resetting handpiece 32, a lateral anchor inserter 20 with a lateral anchor mandrel 21 and a lateral anchor release tube 22. Furthermore, the illustrated tool set comprises a medial anchor inserter 10 with handpiece of the medial anchor inserter 17, medial anchor mandrel 11, medial anchor release tube 12, locking head 16, and stopper clip 15 with slot 18.

[0046] Furthermore, a collar of the release tube 61 and the collar of the base plate inserter 62 are shown. The stopper clip 15 is designed as a fixed bridge and, in conjunction with the collars 61, 62, positively prevents any axial displacement between the medial anchor release tube 12 and the base plate inserter 52. For example, this prevents the medial anchor from penetrating too deeply into bone (not shown).

[0047] Through the interaction of the individual elements of the medial anchor inserter, the medial anchor can be partially, and subsequently further, moved into a position by a force applied to the locking head 16 due to the slot 18 of the stopper clip 15, and then further moved into a position by removal of the stopper clip 15. Figure 1The bone (not shown) is inserted. Additionally, it is conceivable that the width of slot 18 could be adjusted by means of an unspecified mechanism, such as an adjusting screw, to allow greater flexibility during surgical procedures.

[0048] The stopper clip 15 is detachable and removable, and can be quickly and easily pulled off in a radial direction towards the anchor inserter 10, thus enabling the surgeon to work quickly. The lateral anchor 23 can then also be quickly inserted into the bone using the lateral anchor inserter 20.

[0049] Figure 2 shows a schematic detail view of the top of the in Figure 1The medial anchor inserter 10 is shown. The medial anchor 13 is mounted on the medial anchor drive mandrel 12, which is shown inserted into the medial anchor release tube 12. The medial anchor release tube 12 is in turn shown inserted into the base plate inserter 52, on which a base plate 51 is located. The base plate 51 has an unspecified opening through which the Figure 1 or in Figure 3 The lateral anchor 23 shown can be quickly inserted using the lateral anchor inserter 20.

[0050] Furthermore, it is shown that the medial anchor release tube 12 is formed on an unspecified end face for support against a support contour, such as a collar surface of the medial anchor 13. This is analogous in Figure 3 The lateral anchor release tube and the lateral anchor are shown. The lateral anchor release tube is in Figure 3 formed on an end face which is also not further specified, for support against a support contour, such as a collar surface of the lateral anchor 14.

[0051] From a synthesis of Figure 1 and the Figure 2 It is also evident that the stopper clip 15 temporarily prevents the complete penetration of the medial anchor 13 into the base plate 51, in the sense that the head of the medial anchor 14 rests on the base plate 51.

[0052] Furthermore, the medial anchor has 13 locking elements in the form of barbs 13a.

[0053] In a further embodiment, the medial anchor 13 can also have locking elements corresponding to the lateral anchor 23 with further projecting barbs or pawls 23a (analogous). Preferably, these pawls 23a (analogous) can also be configured circumferentially, offset by 90° in sections, or alternately as barbs and pawls with their axes of symmetry rotated 90° relative to each other.

[0054] Figure 3 shows a schematic detail view of the top of the in Figure 1 The lateral anchor inserter 20 shown. The lateral anchor 23 is held on the lateral anchor drive mandrel, which is located inside the lateral anchor release tube 22.

[0055] Furthermore, the lateral anchor 23 has locking elements in the form of pawls 23a.

[0056] Figure 4 Figure 1 shows a schematic view of a stopper clip 15 with slot 18. In a summary of the Figure 4 with the Figure 1The figure shows how the stopper clip 15, in conjunction with the collar of the release tube 61 and the collar of the base plate inserter, releasably prevents the medial anchor from penetrating too far or too little.

[0057] All features described in connection with individual embodiments of the invention can be provided in different combinations in the object according to the invention in order to simultaneously realize their advantageous effects.

[0058] The scope of protection of the present invention is defined by the patent claims and is not limited by the features explained in the description or shown in the figures. Reference symbol list:

[0059] 10 Medial anchor inserter 11 Medial anchor drive mandrel 12 Medial anchor release tube 13 Medial anchor 13a Barb 14 Medial anchor head 15 Stopper clip 16 Locking head 17 Medial anchor inserter handpiece 18 Slot 20 lateral anchor inserter 21 lateral anchor drive mandrel 22 lateral anchor release tube 23 lateral anchor 23a locking pawls 30 Reaming tool 31 Reaming mandrel 32 Reaming handpiece 40 Trocar 41 Trocar tube 51 Base plate 52 Base plate inserter 52 Base plate inserter tube 53 Barbs / Tabs 54 Marking 61 Collar of the release tube 62 Collar of the base plate inserter

Claims

1. Tool 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 tool kit comprises a medial anchor inserter (10), wherein the medial anchor inserter (10) comprises a medial anchor drive mandrel (11) and a medial anchor release tube (12), wherein the medial anchor release tube (12) is designed to receive the medial anchor drive mandrel (11), wherein the medial anchor drive mandrel (11) is designed both to receive a medial anchor (13) and to introduce the medial anchor (13) into bone by driving it into the latter, wherein the medial anchor drive mandrel (11) has a locking head (16) for locking the medial anchor drive mandrel (11) to the medial anchor release tube (12), characterized in that the tool kit comprises a base-plate inserter (52), which base-plate inserter (52) comprises a handpiece and a base-plate inserter tube (52), wherein the base-plate inserter tube (52) is designed to receive the base plate (51) of the tendon fixation plate and is designed to at least partially introduce the base plate (51) into tissue or bone and is designed to receive the medial anchor inserter (10) within the handpiece and the base-plate inserter tube (52), wherein complete penetration of the medial anchor insert (10) into the base-plate inserter (52) is temporarily prevented by means of a releasable stopper clip (15).

2. Tool kit according to Claim 1, characterized in that a respective collar (61, 62) is formed both on the medial anchor release tube (12) and on the base-plate inserter (52).

3. Tool kit according to either of the preceding Claims 1 and 2, characterized in that the stopper clip (15) is designed as a location-fixing bridge and / or, by means of the collars (61, 62), is designed to interlockingly prevent an axial offset possible between the medial anchor release tube (12) and the base-plate inserter (52).

4. Tool kit according to any one of the preceding Claims 1 to 3, characterized in that the stopper clip (15) is designed to be detachable, in particular able to be pulled off.

5. Tool kit according to any one of the preceding Claims 1 to 4, characterized in that the stopper clip (15) is designed, in particular slotted, in such a way that a first depth of penetration of the medial anchor (13) into the bone is adjustable.

6. Tool kit according to any one of the preceding claims, further comprising a lateral anchor inserter (20), wherein the lateral anchor inserter (20) comprises a lateral anchor drive mandrel (21) and a lateral anchor release tube (22), wherein the lateral anchor release tube (22) is designed to receive the lateral anchor drive mandrel (21), wherein the lateral anchor drive mandrel (21) is designed to receive a lateral anchor (23) and to introduce the lateral anchor (23) into bone.

7. Tool kit according to any one of the preceding claims, characterized in that the medial anchor release tube (12) is designed, at an end face of the medial anchor release tube (12), to bear on a support contour, in particular a collar surface, of a medial anchor (13).

8. Tool kit according to Claim 7, characterized in that the end face of the medial anchor release tube (12) and the support contour, in particular the collar surface, of the medial anchor (13) form a first push-off mechanism, which allows the medial anchor (13) to be released from the medial anchor drive mandrel (11).

9. Tool kit according to any one of the preceding claims, characterized in that the lateral anchor release tube (22) is designed, at an end face of the lateral anchor release tube (22), to bear on a support contour, in particular a collar surface, of the lateral anchor (23).

10. Tool kit according to Claim 9, characterized in that the end face of the lateral anchor release tube (22) and the support contour, in particular the collar surface, of the lateral anchor (23) form a second push-off mechanism, which allows the lateral anchor (23) to be released from the lateral anchor drive mandrel (21).

11. Tool kit according to any one of the preceding claims, further comprising a re-impact tool (30), which comprises a re-impact drive mandrel (31) and a re-impact handpiece (32).

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

13. Tool kit according to any one of the preceding claims, 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 (50) has a marking (54) for clearly distinguishing the anchors (13, 23).

14. System comprising a tendon fixation implant and a tool kit for minimally invasive implantation of 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 kit is designed according to any one of the preceding claims.