阅读说明：本技术 植入物套件以及用于准备插入植入物的方法 (Implant kit and method for preparing for inserting an implant ) 是由 阿德姆·阿克苏 弗兰克·赖瑙尔 托比亚斯·沃尔弗拉姆 于 2020-04-06 设计创作，主要内容包括：本发明涉及一种植入物套件(1),具有患者特定的植入物(2)、运输装置(3)和工具(4),所述运输装置(3)与所述植入物(2)的外轮廓相适配并且所述植入物(2)容纳在所述运输装置(3)中,所述工具(4)用于利用骨屑填充所述植入物(2)和/或用于挤压所述骨屑,其中,所述植入物(2)具有内轮廓,所述工具(4)的至少一个端部(5、6)的外轮廓与所述内轮廓相适配。此外,本发明涉及一种用于借助于植入物套件(1)准备植入物(2)的插入的方法。(The invention relates to an implant set (1) having a patient-specific implant (2), a transport device (3) and a tool (4), wherein the transport device (3) is adapted to an outer contour of the implant (2) and the implant (2) is accommodated in the transport device (3), wherein the tool (4) is used for filling the implant (2) with bone fragments and/or for compressing the bone fragments, wherein the implant (2) has an inner contour, and wherein an outer contour of at least one end (5, 6) of the tool (4) is adapted to the inner contour. Furthermore, the invention relates to a method for preparing the insertion of an implant (2) by means of an implant kit (1).)

1. Implant set (1) having a patient-specific implant (2), a transport device (3) and a tool (4), the transport device (3) being adapted to an outer contour of the implant (2) and the implant (2) being accommodated in the transport device (3), the tool (4) being used for filling the implant (2) with bone fragments and/or tissue structures and/or for compressing the bone fragments, wherein the implant (2) has an inner contour, to which an outer contour of at least one end (5, 6) of the tool (4) is adapted.

2. Implant kit (1) according to claim 1, characterized in that the tool (4) has at least two ends (5, 6), which ends (5, 6) are configured as rods.

3. Implant kit (1) according to claim 2, characterized in that the ends (5, 6) of the tool (4) have different cross-sectional geometries.

4. Implant kit (1) according to any one of claims 1 to 3, characterized in that a first section (8) of the tool (4) has a circular cross section and/or a second section (12) of the tool (4) has a rectangular cross section.

5. Implant kit (1) according to one of claims 1 to 4, characterized in that the transport device (3) has a tool receptacle (28) which is provided for holding the tool in a material-fitting, form-fitting and/or force-fitting manner.

6. Implant kit (1) according to claim 5, characterized in that the tool receptacle (28) configures a nominal breaking point between the tool (4) and the transport device (3) and/or is coordinated with the outer contour of the tool (4).

7. Implant kit (1) according to one of claims 1 to 6, characterized in that the transport device (3) has a main body (19, 21) and a closure body (22) for fixing and/or contacting the implant (2) on multiple sides.

8. Implant kit (1) according to claim 7, characterized in that the closing body (22) is displaceable relative to the main body (19, 21) between a first position, in which the closing body (22) abuts against a section (21) of the main body (19, 21) so as to enclose the implant (2), and a second position, in which the closing body (22) is spaced apart from the section (21) of the main body.

9. Implant kit (1) according to one of claims 1 to 8, characterized in that the implant (2) has, at least in sections, a grid-like or diamond-like or honeycomb-like structure or a pore structure.

10. Implant kit (1) according to one of claims 1 to 9, characterized in that the implant (2) has a space which can be filled with bone fragments and/or a through-hole which can be filled with bone fragments.

11. Method for preparing the insertion of an implant (2) by means of an implant kit (1) according to one of claims 1 to 10, wherein,

in a first step, the implant (2) is placed in the transport device (3), wherein bone fragments are then inserted into the implant (2) in a second step using the tool (4), and wherein the bone fragments are then pressed in the implant (2) in a third step using the tool (4).

Technical Field

The present disclosure relates to an implant kit. Furthermore, the invention relates to a method for preparing an insertion implant.

Background

For filling the bone cavity and/or for bone regeneration, patient-specific, separately manufactured implants are used. These implants have a three-dimensional complex shape and are largely determined by the patient and/or the implantation site. There is currently no aid, tool or structured device for assisting in filling these implants with bone chips and/or other tissue structures (e.g., cartilage or bone tissue structures) or for securing these implants to bone.

Disclosure of Invention

It is therefore an object of the present invention to avoid or at least reduce the disadvantages of the prior art. In particular, an implant kit and a method for preparing an implant for insertion are proposed, which enable a particularly efficient and optimized preparation and/or operation of the implant.

The object of the invention is achieved by an implant set having the features of claim 1 and by a method having the features of claim 10. Advantageous embodiments are claimed in the dependent claims and are set forth in more detail below.

More specifically, an implant kit is provided according to the present invention. The implant kit has patient-specific implants, in particular a jaw jig or jaw plate for the maxilla. Furthermore, the implant set has a transport device which is adapted to the outer contour of the implant and into which the implant is inserted/placed. The inner contour preferably corresponds approximately shell-like and/or planar and/or flush/exact-fitting on multiple sides to the outer contour of the implant, at least a part of the outer contour. Furthermore, the implant kit has a tool, for example in the form of a pestle, for filling the implant with bone fragments and for pressing the bone fragments.

Furthermore, the implant kit can also be realized in such a way and form that soft tissue (for example cartilage, collagen material or bone-cartilage mixtures) is used instead of bone fragments and that tools are used here in order to gently compact these materials against the tissue. The implant has an inner contour to which the outer contour of at least one end of the tool is adapted. In other words, the shape of the tool, in particular at its ends, is coordinated with the shape of the implant such that its shape at least partially corresponds to the shape of the implant, in particular to the shape of the inner contour, such as a through hole, in the implant. The tool can be used as an interface with the function of fixing the implant with minimal time consumption and/or minimal force consumption and/or with the function of filling the implant with bone fragments and/or compressing these bone fragments in the implant. The tool may also be used as an interface with or without a function for a specific energy transmission.

It is particularly preferred that the outer contour of the implant rests against the inner contour of the transport device, so that bone fragments in the inner contour of the implant are compressible between the tool (in the inner contour of the implant) and the transport device. In other words, according to a particularly preferred embodiment (as inner contour), the implant can have a (first) opening, for example a through-hole which is open with respect to the outer contour, wherein the opening is closed by the inner contour of the transport device, preferably following flush the outer contour of the implant, when the implant is in/inserted into the transport device. Thus, bone chips can be pressed into the opening without falling out during the pressing, but in direct surface contact with the bone at the implantation site. In particular, bone chips can be filled through the access opening on one side of the through-hole in the implant and pressed out of the access opening by the tool. Since the first opening is closed by the transport device, the bone fragments do not fall out during the pressing, but are pressed at the same time, so that a flush outer contour/outer surface of the implant is formed by the bone fragments pressed in the through-hole in the removed state from the transport device.

This has the advantage that, for example, when the outer shape of the tool corresponds to the contour of the recess in the implant in which the bone chips are located, the bone chips can be packed into the implant and can be compacted uniformly by the tool. By filling the bone fragments, the strength of the implant can be increased in a simple manner. Thus, the tool may be versatile and used for a variety of applications, requiring a reduced number of tools. In particular, the outer contour of the tool is slightly smaller than the inner contour of the implant, since the tool can be introduced into the implant in such a particularly simple manner that there is no risk of damage to the implant.

According to a preferred embodiment, the tool may have at least two ends, which are configured as rods. Thus, the two ends may be used for different parts of the inner contour of the implant. The rod-like configuration of the tool enables the tool to also engage into deep recesses in the implant. Preferably, the tool has an at least sectionally constant cross section over its longitudinal extension.

According to an advantageous development of this embodiment, the end of the tool can have different cross-sectional geometries. For example, the section of the tool can have a round, in particular circular, cross section. The section of the tool may have an elliptical cross-section. The round cross section is particularly well suited for engaging in holes in implants, such as drilled holes, in particular cavities/bores, for example in order to compact and/or squeeze bone fragments filled therein. The segments can also have angular cross sections, for example triangular, rectangular or square cross sections. Such a cross-sectional shape is suitable for pressing bone fragments into e.g. slit-like recesses in the implant.

Alternatively, the tool may have a section with a tool action geometry. For example, the tool action geometry may have a cross-slot profile, a cross-square profile, a hexagonal profile, or an inner hexagonal driving profile. Thus, the tool can be used to introduce a screwing-in torque or a screwing-out torque.

The tool may also have a section with a shovel geometry, a spoon geometry, or a shovel geometry. This geometry can be advantageously used to fill bone chips or other softer tissue structures, such as cartilage, from the reservoir into the implant. If the section has a rectangular cross section, it is suitable not only as a shovel but also as a compactor for the slot-like depression.

According to a preferred embodiment, the tool may have a gripping area, which enables a simple gripping and/or handling of the tool. In particular, the grip region may have a round contour which is flattened on both or on each side or a rectangular cross section, preferably with rounded edges and/or slightly spherically configured side faces, which enables particularly good grip in the hand in a simple manner.

In a preferred embodiment, the end face of the tool, which may also be referred to as the distal face, may be configured convex/bulbous, concave or flat/flattened. A flat or slightly spherical end face has proven particularly suitable, since this makes it possible to compress the bone fragments particularly uniformly.

The tool may be constructed of Polyamide (PA), Polyetheretherketone (PEEK), Polyoxymethylene (POM), polyphenylsulfone (PPSU), stainless steel, titanium, ceramic, or a combination of the above materials. Preferably, the tool is composed of polyamide. The tool may have a coating and/or surface modification. Furthermore, the tool may preferably be sterile.

According to a preferred embodiment, the transport device can have a tool receptacle which is intended for the material-fit, form-fit and/or force-fit holding of a tool. Preferably, the tool can be accommodated in the tool holder in a detachable, i.e. remountable manner. Particularly preferably, the tool can be released from the tool holder without tools, i.e. without the use of further tools. According to an advantageous development of this embodiment, the tool holder can be designed to assume a desired breaking position between the tool and the transport device and/or to be adapted to the outer contour of the tool, for example as a holder. Thus ensuring that the required tools are ready for gripping.

According to an advantageous embodiment, the transport device can have a main body and an enclosure for fixing the implant and/or for contacting the implant on multiple sides. Thus, the implant can be securely accommodated between the body and the closure body, in particular there filled with bone chips or cartilage fragments.

According to a particularly preferred development, the closing body can be displaceable, preferably linearly, in particular guidably, relative to the main body. Alternatively, the closure may be pivotable or reversible relative to the body. In particular, the closing body can be displaced relative to the main body between a first position, in which the closing body bears against a section of the main body so that the implant is preferably enclosed completely or multilaterally, and a second position, in which the closing body is spaced apart from the section of the main body. It is particularly preferred that the displacement of the closing body is guided by a form-fitting track. For example, the track is formed by a groove configured on the main body (or closure body) and a corresponding protrusion configured on the closure body (or main body). The groove may have the shape of a dovetail groove, for example.

According to this embodiment, the transport device has a receptacle for the implant, wherein the receptacle is formed by the closure body and the main body. The receptacle can be configured, for example, in the form of a shell. For example, the receptacle may have a bell-shaped or round cross section/bell-shaped inner contour.

In an advantageous development, the closing body (or main body) can have a pin and the main body (or closing body) can have a corresponding bore, wherein the pin engages into the bore in the first position. The transport device thus has a particularly high stability in the first position. It is particularly advantageous if the pin (or pin or bolt) extends in a direction parallel to the direction along which the closing body is displaceable relative to the main body. Furthermore, it is preferred that the insertion direction of the tool, in which the tool can be inserted into the tool receptacle, is oriented parallel to the direction along which the closing body is displaceable relative to the main body. Thus, a particularly compact implant kit may be provided.

The transport device may have a gripping tab, for example, protruding from the closure body. Thus, the transport device can be simply gripped and/or transported.

The transport device may be constructed of Polyamide (PA), Polyetheretherketone (PEEK), Polyoxymethylene (POM), polyphenylsulfone (PPSU), stainless steel, titanium, ceramic, or combinations of the above. Preferably, the transport device is constructed from polyamide. The transport device may have a coating and/or a surface modification. Furthermore, the transport means may preferably be sterile.

According to a preferred embodiment, the implant can be configured as a jaw bone jig or as a jaw plate. In particular in implants designed as jaw plates, the filling with bone fragments has proven to be particularly advantageous.

In an advantageous embodiment, the implant can have a lattice-like or diamond-like or honeycomb-like structure or a pore structure, at least in sections. This enables bone fragments to be wedged into the implant. For example, the implant may have a shape such as a shell having a U-shaped or V-shaped profile.

According to a preferred embodiment, the implant can have at least one recess, in particular a through-hole serving as a cavity. For example, the implant has two through-holes which can be filled with bone fragments and/or a web-like depression.

The implant may be comprised of a resorbable bone substitute material. The implant is preferably composed of Hydroxyapatite (HA), α -tricalcium phosphate (α -TCP), β -tricalcium phosphate (β -TCP), Biphasic Calcium Phosphate (BCP), magnesium (Mg), MgCaZn, bioglass, molybdenum (Mo), or a combination of these materials. Furthermore, the implant may preferably be sterile.

According to the invention, a method for preparing an insertion implant by means of an implant kit according to the invention is also proposed. In a previous step, the transport device may be opened so that the implant may be placed. In a first step, the implant is placed into a delivery device. The transport device may then be closed. Then, in a second step, the bone fragments are inserted into the implant using the tool, in particular using the first tool section. Then, in a third step, the bone fragments are pressed in the implant with a tool, in particular with the second tool section. For this purpose, the tool is pressed into a through hole or a recess in the implant. Subsequently, the transport device can be opened and the implant can be removed from the transport device. Finally, the implant is fastened to the skull bone, for example to the maxilla. The tool may also be used for holding and/or fixing the implant and/or for pressing bone fragments against the maxilla.

Drawings

The invention is explained below with the aid of the figures. Wherein:

figure 1 shows a perspective view of a transport device and a tool of an implant set according to the invention,

fig. 2 shows a perspective view of an implant kit with an implant, a transport device and a tool.

Figure 3 shows a perspective view of the tool,

figures 4 and 5 show perspective views of the use of the tool, and

fig. 6 to 9 show perspective views of an implant kit and steps of a method for preparing an implant.

Detailed Description

The drawings are only schematic and are merely for the understanding of the present invention. Like elements are characterized by like reference numerals.

Fig. 1 and 2 show a perspective view of an implant kit 1 according to the invention. The implant kit 1 has a patient-specific implant 2. The implant 2 is configured as an individual implant made of a bone substitute material. The implant 2 is used in particular as a resorbable bone cavity filler and/or for bone regeneration. The implant 2 is not shown in fig. 1. The implant set 1 has a transport device 3. The transport device 3 is adapted to the shape, in particular the outer contour, of the implant 2. The transport device 3 serves for storing, transporting and/or filling the implant 2 with bone fragments. The implant 2 is accommodated in a transport device 3 (see fig. 2). The implant kit 1 further comprises a tool 4. The tool 4 may be used to fill the implant 2, for example with bone fragments. The tool 4 can also be used to press material, in particular bone fragments, preferably in the implant 2. The tool 4 has at least one end 5, 6 which is adapted to the shape of the implant 2, in particular the inner contour of the implant 2.

Fig. 3 shows the tool 4 in a perspective view. The tool 4 is designed in a pestle or rod-like manner. That is to say, the tool 4 has a significantly greater extension in its longitudinal direction than in its transverse direction transverse to the longitudinal direction. For example, the extension in the longitudinal direction may be at least twice the extension in the transverse direction. Alternatively, although not shown, the tool may, for example, be in the form of a cross wrench. In the embodiment shown, the tool 4 has a first end 5 and a second end 6 opposite the first end 5. The tool 4 has a gripping area 7 arranged between the two ends 5. The tool 4 may be constructed of one or more materials, for example two materials. Polyamide (PA), Polyetheretherketone (PEEK), Polyoxymethylene (POM), polyphenylsulfone (PPSU), stainless steel, titanium, ceramic or combinations of the above have proven to be particularly suitable materials. Preferably, the tool 4 is made of ceramic.

The first tool section 8 arranged at the first end 5 has a substantially rectangular cross section. The cross section of the first tool section 8 is constant over its extension in the longitudinal direction. The first tool section 8 has rounded edges. The end face 9 of the first tool section 8 is of flat or planar design. Although not shown, the end face 9 can also be configured concavely or convexly. Due to the rectangular cross section, the first tool section 8 has two wide sides, which are referred to below as first sides 10, and two narrow sides, which are referred to below as second sides 11. One of the first sides 10 can serve, for example, as a shovel with which bone fragments can be received and filled into the implant 2. For example, bone fragments may be removed from a body part such as the pelvis. Preferably, the removed bone fragments are comminuted in a receptacle (e.g. a stainless steel cup), for example using scissors, and removed from the receptacle by means of the tool 4, in particular the first side 10 of the first tool section 8.

The second tool section 12 arranged at the second end 6 has a substantially round, in particular circular, cross section. The cross section of the second tool section 12 is constant over its extension in the longitudinal direction. The end face 13 of the second tool section 12 is of flat or planar design. Although not shown, the end face 13 may also be configured to be concave or convex. The second tool section 12 has an outer circumferential surface 14. The end face 13 of the second tool section 12 serves in particular to compact or press bone fragments into the implant 2. Preferably, the outer contour of the second tool section 12 corresponds at least in sections to the inner contour of the implant 2, in particular to a tooth bore of the implant 2, which will be described in more detail below, which enables particularly uniform compaction.

The grip region 7 has a substantially rectangular, for example square, cross section. The grip region 7 has rounded edges. The grip region 7 has four sides 15. The two opposing first side faces 15 are in the embodiment shown configured to be slightly convex, i.e. outwardly bulbous. In particular, the first side 15 can be spherically configured in the longitudinal direction, so that the cross section is greatest in the middle of the grip region 8 and tapers outward in the longitudinal direction. Although not shown, the first side 15 can also be configured flat or concave. The two opposite second flanks 16 are configured flat in the embodiment shown, but may also be configured convex or concave, even if this is not shown.

Fig. 4 and 5 show the possibilities of use of the tool 4. In the embodiment shown, the implant 2 is mounted on the skull bone, in particular the maxilla 17. The tool 4 may be used to hold and/or secure the implant 2. The tool 4 can also be used to additionally compact bone fragments in the implant 2 fastened to the maxilla 17 by: the tool 4, in particular the second tool section 12, presses the bone fragments in a direction towards the maxilla 17. However, the tool 4 may be primarily used to prepare for insertion of the implant 2, as will be described in more detail below.

The features of the implant 2 and the transport device 3 will be described in more detail with reference to fig. 6 to 9. A method according to the invention for preparing the insertion of an implant 2 is also described.

The transport device 3 has a receptacle 18 for the implant 2. In the embodiment shown, the receptacle 18 is designed as a recess in the transport device 3, into which the implant 2 can be inserted in a particularly precisely fitting and/or precisely shaped manner. In the embodiment shown, the receptacle 18 is open to one side, in particular upward in the vertical direction. The transport device 3 also has a bottom 19, for example in the form of a plate. The receptacle 18 is formed by a shell 20.

The housing 20 is formed in multiple parts. The shell 20 has a first shell section 21, which forms a part of the shell 20, for example approximately one shell half. The first housing section 21 is fixedly connected to the base 19. Alternatively, the first shell section 21 can also be moved relative to the bottom 19. The first shell section 21 can be constructed integrally or monolithically with the base 19. However, the first shell section 21 may also be configured as a separate component from the bottom 19 that is mounted to the bottom 19. The first shell section 21 and the bottom 19 constitute the main body of the transport device 3. The shell 20 has a second shell section 22, the first shell section forming part of the shell 20, for example about one (other) shell half. The first shell section 21 is constructed independently of the second shell section 22. The second housing section 22 is movable, in particular displaceable, relative to the first housing section 21. Alternatively, the second housing section 22 can also be pivotable, rotatable or invertible relative to the first housing section 21.

The housing 20 is movable into an open position and a closed position. In the open position shown in fig. 6, the two shell sections 21, 22 are spaced apart from one another. In particular, the two shell segments 21, 22 are spaced apart from one another, so that the implant 2 can be pushed or placed into the receptacle 18 by this distance. Therefore, the distance is preferably greater than the maximum width of the implant 2. In the closed position shown in fig. 7, the two housing sections 21, 22 bear against one another, so that the receptacle 18 has a closed contour. The contour of the receptacle 18 corresponds in particular to the outer contour of the implant 2. In the closed position, the implant 2 cannot (or should not) be placed into the receptacle 18 or removed from the receptacle 18.

For opening or closing the housing 20, the second housing section 22 forming the closing body can be moved relative to the first housing section 21. For guiding the displacement, a rail 23 is formed between the base 19 and the second housing section 22. The track 23 is formed by a groove 24 in the bottom 19 and a projection 25 on the second shell section 22. The projection 25 is close to the bottom, i.e. arranged on the bottom-facing (lower) side of the second shell section 22. Alternatively, the groove can also be formed on the second housing section 2 and the projection on the base 19. The cross-section of the groove 24 corresponds to the cross-section of the protrusion 25. In the embodiment shown, the cross-section has the shape of a dovetail groove. The cross section therefore tapers in the direction toward the second shell section 22, so that the second shell section 22 cannot be removed in a direction perpendicular to the base. The groove 24 extends in a direction which will be referred to as the displacement direction hereinafter. The recess 24 has an opening to the outside of the transport device 3. Thus, for opening and closing the housing 20, the second housing section 22 can be displaced in the groove 24 along the pushing direction. The second housing section 22 is mounted on the base 19 in a form-fitting manner (in the vertical direction) but displaceably (linearly) in the displacement direction by means of rails 23.

Two pins 26 are formed on the second housing section 22, which pins project in the direction of the first housing section 21. It is also possible to provide only one pin 26. More than two pins, for example 3 or 4 pins, may also be provided. The pin 26 extends in the pushing direction. A corresponding number of bores 27 are formed in the first housing section 21. The holes 27 are adapted to the diameter of the pins 26. The hole 27 is arranged in alignment with the pin 26 in the pushing direction, so that the pin 26 engages into the hole 27 when the housing 20 is closed. Preferably, the pin 26 and the hole 27 form a force-fitting connection which increases the stability of the transport device 3 and/or prevents unintentional opening. Alternatively, although not shown, a pin may also be configured on the first shell section 21 and a hole may be configured on the second shell section 22.

The transport device 3 has a tool holder 28. The tool 4 can be held in the tool holder by material fit, form fit and/or force fit. In the embodiment shown, the tool receiver 28 is designed as a holder. The holder is formed by two holding arms 29, for example a lower holding arm and an upper holding arm, between which the tool 4 can be inserted. The holding arms 29 are adapted to the outer contour of the tool 4, for example to the contour of the gripping area 7. The tool 4 can be inserted into the holder in the pushing direction. The tool 4 is detachably mounted in the tool receiving portion 28. Thus, the tool 4 can be removed from the tool holder 28, in particular in a tool-less manner, and can be installed again in the tool holder 28. Alternatively, although not shown, the tool 4 can be secured to the tool holder 28 by a material fit via a predetermined breaking point.

A gripping tab 30 is formed by the bottom 19. The bottom 19 protrudes from the housing 20 so that the transport device 3 can be gripped on the bottom 19. For example, the gripping tab 30 may protrude on opposite sides or all sides of the housing 20.

In other words, the inner contour of the transport device 3, in particular of the receptacle 18, is formed onto the shape, in particular the outer contour, of the implant 2. The inner contour shape of the receptacle 18 may have, for example, a bell shape or a substantially triangular or rectangular shape. One side of the implant 2 rests, in particular lies flush, on the bottom surface 31 of the receptacle 18. The bottom surface 31 is formed in part by the first shell section 21 and in part by the second shell section 22.

The transport device 3 can be composed of one or more materials, for example two materials. Polyamide (PA), Polyetheretherketone (PEEK), Polyoxymethylene (POM), polyphenylsulfone (PPSU), stainless steel, titanium, ceramic or combinations of the above have proven to be particularly suitable materials. Preferably, the transport device 3 is made of ceramic.

The implant 2 is configured as an individual implant and thus is configured differently depending on the application and the patient. In the illustrated embodiment, the implant 2 is configured in a U-shape or V-shape. The shape of the implant 2 can also be described as a shell. Two through holes 32, which may also be referred to as tooth holes or cavities, are configured in the implant 2. It is also possible to construct only one through-hole in the implant. Alternatively, more than two through-holes, for example 3, 4, 5 or 6 through-holes, can also be formed. The through-hole 32 extends in a direction which corresponds to the vertical direction in the state of being placed in the transport device 3. The through-holes 32 are connected by a web-like recess 33 formed in the implant 2. The implant 2 has a lattice-like structure, also referred to as a cell structure or a honeycomb structure.

When the implant 2 is placed in the receptacle 18, the implant 2, in particular the through-hole 32, can be filled with bone fragments by means of the tool 4. For this purpose, bone fragments are filled into the through-hole 32, for example scooped up, by the first tool section 8 of the tool 4. With the second tool section 12, the outer contour of which corresponds to the shape of the through-hole 32, the bone chips are compacted. For this purpose, the end face 13 of the second tool section 12 is inserted into the through-opening 32 and pressed against the bottom face 31 of the transport device 3 (see fig. 7). The bone fragments form agglomerates due to their compatibility, the different shapes of the individual bone fragments, if necessary mixed blood and the lattice structure of the implant 2. Therefore, even if the implant 2 is taken out of the transportation means 3, bone fragments are attached in the implant 2.

As can be seen in fig. 8, the recess 33 in the implant 2 is filled with bone fragments by means of the tool 4. The shape of the first tool section 8 corresponds to the shape of the recess 33. By pressing the tool 4 into the recess 33, the bone fragments are compacted and/or pressed.

In order to be able to implant the implant 2, the transport device 3, in particular the shell 20, is opened. The implant 2 filled with bone fragments can then be removed from the transport device 3 (see fig. 9).

The implant 2 is composed of a bone substitute material such as Hydroxyapatite (HA), alpha tricalcium phosphate (alpha-TCP), beta tricalcium phosphate (beta-TCP), Biphasic Calcium Phosphate (BCP), magnesium (Mg), MgCaZn, bioglass, molybdenum (Mo) or a combination of these materials.

The claims (modification according to treaty clause 19)

1. An implant kit (1) with a patient-specific implant (2), a transport device (3) and a tool (4), the transport device (3) is adapted to the outer contour of the implant (2) and the implant (2) is accommodated in the transport device (3), the tool (4) is used for filling the implant (2) with bone fragments and/or tissue structures and/or for compressing the bone fragments, characterized in that the implant (2) has an inner contour, to which the outer contour of at least one end (5, 6) of the tool (4) is adapted, and the outer contour of the implant (2) rests against the inner contour of the transport device (3) in such a way, so that bone chips in the inner contour of the implant (2) are squeezable between the tool (4) and the transport device (3).

2. Implant kit (1) according to claim 1, characterized in that the tool (4) has at least two ends (5, 6), which ends (5, 6) are configured as rods.

3. Implant kit (1) according to claim 2, characterized in that the ends (5, 6) of the tool (4) have different cross-sectional geometries.

4. Implant kit (1) according to any one of claims 1 to 3, characterized in that a first section (8) of the tool (4) has a circular cross section and/or a second section (12) of the tool (4) has a rectangular cross section.

5. Implant kit (1) according to one of claims 1 to 4, characterized in that the transport device (3) has a tool receptacle (28) which is provided for holding the tool in a material-fitting, form-fitting and/or force-fitting manner.

6. Implant kit (1) according to claim 5, characterized in that the tool receptacle (28) configures a nominal breaking point between the tool (4) and the transport device (3) and/or is coordinated with the outer contour of the tool (4).

7. Implant kit (1) according to one of claims 1 to 6, characterized in that the transport device (3) has a main body (19, 21) and a closure body (22) for fixing and/or contacting the implant (2) on multiple sides.

8. Implant kit (1) according to claim 7, characterized in that the closing body (22) is displaceable relative to the main body (19, 21) between a first position, in which the closing body (22) abuts against a section (21) of the main body (19, 21) so as to enclose the implant (2), and a second position, in which the closing body (22) is spaced apart from the section (21) of the main body.

9. Implant kit (1) according to one of claims 1 to 8, characterized in that the implant (2) has, at least in sections, a grid-like or diamond-like or honeycomb-like structure or a pore structure.

10. Implant kit (1) according to one of claims 1 to 9, characterized in that the implant (2) has a space which can be filled with bone fragments and/or a through-hole which can be filled with bone fragments.

11. Method for preparing the insertion of an implant (2) by means of an implant kit (1) according to one of claims 1 to 10, wherein,

in a first step, the implant (2) is placed in the transport device (3), wherein bone fragments are then inserted into the implant (2) in a second step using the tool (4), and wherein the bone fragments are then compressed in the implant (2) between the tool (4) and the transport device (3) in a third step using the tool (4).