Ldr Medical, S.a.s.

Other

Daniel Dongwahn Lee

Marc Ameil

Paul Henry Cho

The present invention relates to a vertebral implant, in particular for corpectomy, to a device for attaching a vertebral implant and to implantation instrumentation, the implant including at least one first body () and at least one second body () each having at least one face having shapes and dimensions mating those of at least one face of another body () and forming mutual fitting means, in order to allow assembling of said bodies () by sliding along a sliding axis and, on the other hand, at least one locking means () retained in at least one of the bodies () and at least one abutment portion of which is laid out for passing from a so-called open position, allowing sliding for the assembling of said bodies (), to a so-called closed position, locking said bodies () assembled together by the contact between at least said abutment portion and at least one abutment () of at least one of said bodies (), said abutment () being oriented not parallel to the sliding axis and said abutment portion passing from the open position to the closed position elastically by flexure or torsion.

Vertebral implant, device for vertebral attachment of the implant and instrumentation for implantation thereof

This disclosure provides various vertebral implants, devices for attaching a vertebral implant and implantation instrumentations. In some embodiments, the implant includes a first body and a second body, each having a face with shapes and dimensions mating that of the other body and forming mutual fitting means, thus allowing assembly of the bodies by sliding along a sliding axis. In some embodiments, a locking means is retained in one of the bodies and an abutment portion may move from an open position allowing sliding for the assembling of the bodies to a closed position locking the bodies in assembly by the contact between the abutment portion, by contact with an abutment of the other body, the abutment being oriented angularly to the sliding axis and the abutment portion passing from the open position to the closed position elastically by flexure or torsion.

The present specification contemplates a spinal implant device that goes into, for example, a corpectomy defect in any part of the spine. In one aspect, the device is substantially tubular and is comprised of two hollow rods that coaxially slide on one another. The device can thus then expand in length and can be locked or fixed at a particular length. The device is hollow to configure a malleable trocar to be placed into the device. With this trocar, polymethymethacrylate (PMMA) can be injected and packed into the vertebral body cephlad and caudad. Finally the device can be locked at a desired length by crimping it or locking it using other fastening means.

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Las Vegas, NV, United States of America

Daniel Dongwahn Lee