Surgical K-wire and surgical screw system

摘要

The present invention relates to a surgical K-wire for guiding a bone screw comprising a longitudinal channel, which said K-wire comprises a proximal and a distal end, wherein a closure element for closing-off the distal end outlet opening of the longitudinal channel of the bone screw is arranged or formed at the distal end.;Furthermore, an improved surgical screw system is proposed comprising a bone screw and such a surgical K-wire.

主权项

1. A surgical screw system comprising:
a bone screw having a longitudinal channel extending from a proximal end up to a distal end, and a surgical K-wire for guiding the bone screw, the K-wire comprising:
a proximal and a distal end, anda closure element for closing-off a distal end outlet opening of the longitudinal channel of the bone screw arranged or formed at the distal end,wherein:
the K-wire and the closure element are connected to one another in an inseparable manner or are formed in a one piece manner and a predetermined breaking point is formed, arranged or provided between the distal end of the K-wire and the closure element,the closure element comprises at least one closure section extending in a longitudinal direction,the at least one closure section has a non-round cross section with only two opposing flat surfaces,the bone screw has at least one lateral cement outlet opening, andthe predetermined breaking point is arranged such that the closure element, after separating from the K-wire at the predetermined breaking point, remains between the distal end outlet opening and the at least one lateral cement outlet opening leaving the at least one lateral cement outlet opening open.