Stabilizing system for a hybrid external fixator
OwnerGian Rovestiinventor
Life of this patent
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Abstract
A hybrid external fixator includes a first element, predisposed to be located coaxially of a bone, a straight second element, removably constrainable to the first element, fastening elements removably associated to both the first and second elements and predisposed for removably fastening to the bone, and a stabiliser bar, removably constrainable to the first element and the second element by a connecting element. The connecting element includes hooking elements, each of which is predisposed to be removably constrained in a seating afforded in the first or second element, and is conformed in such a way as to lock a tract of the stabiliser bar between a hooking element of the hooking elements and the a first or a second element.
Claims10
1). A hybrid external fixator, comprising:
- at least a first element, having a closed-ring annular or arc of circumference conformation, predisposed to be located coaxially of a bone;
- at least a second element, removably constrainable to the at least a first element, to which fastening elements are removably associated, which fastening elements are predisposed for removably fastening the at least a second element to the bone;
- at least a stabiliser bar, removably constrainable to the at least a first element and the at least a second element by means for connecting;
- wherein the means for connecting comprise hooking elements, each of which is predisposed to be removably constrained in a seating afforded in the at least a first element or the at least a second element, and is conformed in such a way as to lock at least a tract of the at least a stabiliser bar between a hooking element of the hooking elements and the at least a first element or the at least a second element.
2). The hybrid external fixator of claim 1, wherein each of the hooking elements is defined by a hook having a straight portion and a bent portion.
3). The hybrid external fixator of claim 2, wherein each of the seatings is defined by a through-hole arranged radially in the at least a first element or transversally in the at least a second element.
4). The hybrid external fixator of claim 3, wherein each hook is slidably insertable in a respective seating in such a way that the bent end thereof projects externally of the seating itself, each hook being slidable between at least a non-operative position, in which the bent end is distanced from a lateral surface on which the seating is located in the at least a first element or the at least a second element, and a tract of the stabiliser bar can be positioned between the lateral surface and the bent end, and an operative position, in which the bent end locks the tract of the stabiliser bar against the lateral surface.
5). The hybrid external fixator of claim 4, wherein it comprises means for blocking predisposed to activate the hooks in a sliding motion and lock the hooks in the operative position.
6). The hybrid external fixator of claim 5, wherein the means for blocking comprise a threaded end of the hooks predisposed to screw into a nut.
7). The hybrid external fixator of claim 6, wherein the at least a first element is provided with through-slots arranged circumferentially and separated by full portions of the at least a first element, in which the seatings are afforded.
8). The hybrid external fixator of claim 7, wherein the at least a second element is provided with through-slots arranged transversally of a longitudinal development of the at least a second element, the through-slots being delimited and separated from one another by full portions of the at least a second element, in which full portions the seatings are afforded.
9). The hybrid external fixator of claim 8, wherein the stabiliser bar is at least partially deformable.
10). The hybrid external fixator of claim 9, wherein the stabiliser bar exhibits a transversal section having a size which is suitable for enabling a locking of the stabiliser bar by means of the bent portion of the hooks.