The present application claims priority from European Patent Application No. 11007075.2 filed Aug. 31, 2011, the disclosure of which is hereby incorporated herein by reference.
The present disclosure generally relates to the field of surgical implants. In particular, an implant container for receiving a bone plate implant is described. Also described are systems comprising the implant container.
Bone plate implants are widely used to treat bone fractures, to re-attach a previously removed piece of bone and for other purposes. In many cases fixation elements such as bone screws or bone pins are used for fixing the bone plate implants to bone. During a surgical operation the fixation elements have to be conveniently held at the ready for use by a surgeon.
In this regard GB 2 418 421 A discloses a container for elongate surgical fixation elements. The container has a base in which circular holes are provided. The circular holes serve as receiving structures for the surgical fixation elements. Specifically, the surgical fixation elements are introduced with their shafts into the circular holes and are held therein in an upright (e.g., hanging or standing) position.
The container taught in GB 2 418 421 A has a sliding lid that closes an upper portion of the base. By sliding the lid in an open position, the surgeon obtains access to the fixation elements and may remove same from the base. In the case the fixation elements are realized as bone screws with screw heads, a screw driver having a tip that frictionally or magnetically engages the screw heads may be used for bone screw removal.
The lid of the container comprises a plurality of openings. The openings are permeable for a sterilization medium and permit a sterilization of the container (and, optionally, of the fixation elements accommodated therein). For the same purpose openings may also be provided in the base.
There is a need for an implant container that facilitates the handling of bone plate implants in a surgical environment.
According to one aspect, an implant container for receiving at least one bone plate implant is provided, wherein the implant container comprises a base having a first receiving structure configured to receive at least one first bone plate implant so that the first bone plate implant is held in a defined relationship relative to the base, and a first lid having a first opening and being movable relative to the base from a first position to at least a second position, wherein in the first position the first lid covers the first receiving structure at least partially so as to prevent implant removal and in the second position the first lid provides access to the first receiving structure via the opening so as to permit implant removal.
The base may comprise one or more further receiving structures in addition to the first receiving structure. For example, the base may comprise at least one second receiving structure configured to receive at least one second bone plate implant so that the second bone plate implant is held in a defined relationship relative to the base. The second bone plate implant may be of the same type like the first bone plate implant or of a different type.
The first receiving structure and the second receiving structure may be provided in different, non-overlapping portions of the base. In another implementation, the first receiving structure and the second receiving structure may overlap at least partially.
In the second position the lid may provide access to the second receiving structure via one of the first opening and an optional second opening in the first lid so as to permit plant removal. In another realization, the first lid is movable relative to the base from the first position to a third position different from the second position. In such a realization the first lid may cover in the first position and in the second position the second receiving structure at least partially so as to prevent implant removal and, in a third position, the first lid may provide access to the second receiving structure via one of the first opening and an optional second opening so as to permit implant removal.
In addition or as an alternative to the second receiving structure, the base may comprise at least one third receiving structure configured to receive a fixation element for fixing the bone plate implant to bone. The fixation element may take the form of a bone screw, a bone peg or a bone pin.
In the first position the first lid may cover the third receiving structure at least partially so as to prevent removal of the fixation element and, in one of the second position and an optional fourth position, the first lid may provide access to the second receiving structure via one of the first opening and an optional third opening in the first lid so as to permit removal of the fixation element. As an example, in the second position access to both the first bone plate implant and one or more fixation elements for fixing the first bone plate implant to bone may be provided via a single opening or via different openings in the lid. In this way it can be ensured that the surgeon utilizes the intended fixation elements for bone plate implant fixation.
The third opening may be dimensioned so that walls in the first lid defining the third opening act as an axial guiding structure for a removal tool upon removal of the fixation element by the removal tool. As an example, the third opening may have a circular shape that has a slightly larger diameter than that of a tip and a shaft of the removal tool. The tip and the shaft of the removal tool can thus be guided by the third opening towards the fixation element held in the third receiving structure. The third receiving structure may, for example, be realized in the form of an aperture (e.g., a bore) as generally known from GB 2 418 421 A.
Depending on the surgical procedure in which the first or any other bone plate implant will be used, the bone plate implant may be configured to be fixed to bone via a plurality of fixation elements. In such a realization the base may comprise a number of third receiving structures and a first lid may comprise a number of third openings that correspond to the number of the plurality of fixation elements needed for bone plate implant fixation.
In one variant, the first lid is slidably guided relative to the base. In another variant, the first lid may be rotatably movable relative to the base.
The first receiving structure, and optionally any additional receiving structure, may be realized in the form of a recess in the base. A particular recess may substantially be shaped in accordance with at least a portion of a contour of the associated bone plate implant. In one realization, the recess prevents the bone plate implant from laterally moving relative to the base. In another realization, the recess may limit the movement of the bone plate implant relative to the base so as to still guarantee the defined relationship of the bone plate implant relative to the base.
A latching mechanism may be provided that predefines one or more of the positions (such as at least the second position) of the lid relative to the base. The lid may be configured to be moved from any position back to the first position (e.g., to close the implant container after implant removal).
The implant container may further comprise a packaging member configured to package at least the base, the first lid and the first bone plate implant in a sterile manner. The packaging member may comprise a blister pack. Additionally, or as an alternative, the packaging member may comprise a bag. If the bag is provided in addition to the blister pack, the blister pack may be included in the bag.
Of course, the implant container may also comprise the first bone plate implant. Furthermore, additional bone plate implants and/or one or more fixation elements may be comprised by the implant container.
The first lid may comprise a gripping structure arranged on a surface of the first lid that faces a way from the base or laterally on the first lid. The gripping structure is configured to facilitate a transfer of the first lid from the first position to at least the second position. Exemplary realizations of the gripping structure include a depression, a tab, a corrugation and so on. In addition or as an alternative to the gripping structure, the implant container may comprise a holding member arranged on a surface of the first lid that faces towards the base. The holding member is configured to hold at least the first bone plate implant in at least the first receiving structure. As such, the holding member may be realized in the form a rip, a bar or in any suitable form.
According to another aspect, an implant container system comprising the implant container presented herein is provided. The implant container system further comprises a second lid movable relative to the base from the first to one of the second position and an optional third position, wherein the second lid has a second opening and wherein in the first position the second lid covers the second receiving structure at least partially so as to prevent implant removal and, in one of the second position and the third position, the second lid provides access to the first receiving structure via the second opening so as to permit implant removal, wherein the base is configured to be selectively used in combination with one of the first lid and the second lid.
According to a still further aspect, an implant container system comprising the implant container presented herein as well as the removal tool is provided.
In the following, exemplary realizations of the implant container and the implant container system presented herein are discussed in more detail with reference to the drawings, wherein:
In the following various embodiments of implant containers and implant container systems will be presented. The same reference numerals will be used to denote the same or similar structures in the drawings.
In the present embodiment the base 10 is configured to accommodate various types of bone plate implants. It will be appreciated that in other embodiments only a single type of bone plate implant may be accommodated.
As illustrated in
In the embodiment depicted in
The receiving structures of the first type 12A-C fully overlap with the receiving structures of the second type 12D-F but do not overlap with each other. The receiving structure of the second type 12D-F, on the other hand, partially overlap with each other.
A removal canal 16 extends perpendicularly through the receiving structures 12A-C of the first type. As will be discussed in more detail below, the removal canal 16 facilitates gripping of the bone plate implants received in the receiving structures of the first type 12A-C.
As further illustrated in
The base 10 shown in
The base 10 also comprises multiple guiding structures 20 for the lid. The guiding structures 20 are arranged so that the lid can move relative to the base 10 in a translatory manner. At the same time the guiding structures 20 prevent the lid from being lifted off.
The lid 30A of
On the surface of the lid 30A that faces away from the base 10 multiple gripping structures 36A, 36B, 36C are provided. The gripping structures 36A, 36B, 36C comprise surface corrugations 30A to facilitate a manual movement of the lid 30A relative to the base 10.
Moreover, the lid 30A comprises on its circumference a step-like surface structure 38. The surface structure 38 co-operates with the guiding structures 20 of the base 10 to ensure that the lid 30A cannot be lifted off from the base 10 while at the same time guiding a sliding movement of the lid 30A relative to the base 10.
As shown in the cross-sectional view of
The lid 30B can be slidingly moved from the first position illustrated in
In the open state of the container 44A (that corresponds to the second relative position between the lid 30B and the base 10) illustrated in
In the present embodiment, the bone plate implant 50A is an elongate bone plate with two circular screw holes at its opposite ends. Since the bone plate implant 50A is thus to be fixed to bone using a maximum of two bone screws, two bone screws 52 are accessible via the corresponding opening. It will be appreciated that the fixation elements in the form of bone screws 52 are specially adapted (e.g., regarding their length and/or diameter) to be used with the bone plate implant 50A. Therefore, the implant container 44A accommodates a complete implant system comprising the bone plate implant 50 as well as the bone screws 52 that are to be used in combination with the bone plate implant 50. In this way, it will be ensured that always the correct types and numbers of fixation elements 52 will be used in combination with the bone plate implant 50A.
With reference to
It will also be appreciated that due to the specific form of the bone plate implant 50A on the one hand on the shape of an individual receiving structure of the first type, e.g., 12A, on the other hand, the bone plate implant 50A can move within a defined range within the recess defining that receiving structure 12A. The range of movement is nonetheless restricted by the dimensioning of the recess such that the bone plate implant 50A is held in a defined relationship relative to the base 10 (i.e., it can only reach positions in which it can still be gripped via the canal 16).
In present embodiment of the base 10, three receiving structures of the first type 12A-C are provided in the base 10. For this reason, the implant container 44A can be filled with up to three bone plate implants 50A of the type illustrated in
In the open state of the implant container 44B illustrated in
As can be gathered from
The implant container 44A, 44B of the above embodiments may be packaged in a sterile manner. In one example shown in
As has come apparent from the description of exemplary embodiments, the implant container system presented herein facilitates the handling of bone plate implants in a surgical environment. In certain configurations, all the components of an implant system (including at least one bone plate implant and at least one associated fixation element) can be provided in a single implant container. Moreover, in certain configurations, all components of such an implant system that are required for a specific surgical procedure may be made available to a surgeon together. In certain configurations, a single base may be used in combination with different types of bone plate implants and different types of lids.
While the invention has been described with respect to particular embodiments, those skilled in the art will recognize that the present invention is not limited to the specific embodiments described and illustrated herein. It is to be understood that this disclosure is only illustrative. Accordingly, it is intended that the invention be limited only by the scope of the claims appended hereto.
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