Expandable spinal implants, systems and methods are disclosed. An expandable spinal implant may include a first endplate, a second endplate, and a moving mechanism that is operably coupled to the first and second endplates. The moving mechanism may include a wedge, a first sliding frame and a second sliding frame disposed on opposite sides of the wedge, a screw guide housing a rotatable first set screw and a rotatable second set screw opposite the first set screw. The first set screw may be operably coupled to the second sliding frame and the second set screw may be operably coupled to the wedge. The moving mechanism may operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws and operably adjust an angle of inclination between the first and second endplates upon translating the first set screw or second set screw.

The present disclosure provides for spinal implants deployable between a contracted position and an expanded position. The spinal implant may include a first endplate and a second endplate, each having a plurality of guide walls and inclined ramps. The spinal implant may further include a moving mechanism having first and second trolleys configured to act against the first and second plurality of ramps. The expansion mechanism may further include a first set screw and a second set screw opposite the first set screw. The moving mechanism may be configured to operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws along a rotation axis, and may also operably adjust an angle of inclination between the first and second endplates upon rotating the first set screw or second set screw along the rotation axis.

Disclosed screwdrivers may include a rotatable drive shaft having a drive portion disposed at a distal end thereof, and a drive end disposed at a proximal end thereof. Disclosed screwdrivers may include an angled tip portion that is angled with respect to the longitudinal direction, and a mechanism configured to transfer a rotational force applied to the drive portion of the drive shaft through the angled tip portion to the drive end of the drive shaft. Disclosed screwdrivers may include an elastic retaining clip configured to have a bone screw securely attached therein at a clipping force and progressively release the bone screw therein at an extraction force. Disclosed screwdrivers may include at least one spring contacting the elastic retaining clip and the angled tip portion that is configured to facilitate the progressive release of the bone screw.

The invention discloses a bionic artificial hip joint. The artificial hip joint includes a femoral stem located above corpus femoris, and a convex force-bearing part is provided on the femoral stem. The force-bearing part abuts against the inner side of the cortex on greater trochanter and bears a part of the longitudinal stress; its hollow design is convenient for bone grafting, so that the prosthesis and the greater trochanter can be integrated. Replacement surgery can preserve the hard cortex on the greater trochanter, providing another focus point for the femoral stem and further improving the stability of the connection between the bionic artificial hip joint and corpus femoris.

At least one embodiment comprises a talus implant comprising: a body section; a neck section; a crown, wherein the crown is positioned at a top portion of the body section; at least one wing coupled to the body section, wherein the wing extends out from the body section. At least one embodiment further comprises at least one screw hole positioned in at least one of the neck section and the body section. In at least one embodiment the outer surface of the implant is polished. In at least one embodiment a portion of the outer surface is polished while a portion of the outer surface is roughened.

Disclosed screwdrivers may include a rotatable drive shaft having a drive portion disposed at a distal end thereof, and a drive end disposed at a proximal end thereof. Disclosed screwdrivers may include an angled tip portion that is angled with respect to the longitudinal direction, and a mechanism configured to transfer a rotational force applied to the drive portion of the drive shaft through the angled tip portion to the drive end of the drive shaft. Disclosed screwdrivers may include an elastic retaining clip configured to have a bone screw securely attached therein at a clipping force and progressively release the bone screw therein at an extraction force. Disclosed screwdrivers may include at least one spring contacting the elastic retaining clip and the angled tip portion that is configured to facilitate the progressive release of the bone screw.

The present disclosure provides for spinal implants deployable between a contracted position and an expanded position. The spinal implant may include a first endplate and a second endplate, each having a plurality of guide walls and inclined ramps. The spinal implant may further include a moving mechanism having first and second trolleys configured to act against the first and second plurality of ramps. The expansion mechanism may further include a first set screw and a second set screw opposite the first set screw. The moving mechanism may be configured to operably adjust a spacing between the first and second endplates upon simultaneous rotation of the first and second set screws along a rotation axis, and may also operably adjust an angle of inclination between the first and second endplates upon rotating the first set screw or second set screw along the rotation axis.

A surgical device is provided. The surgical device includes a tubular outer shaft having a longitudinal axis and an angled guide positioned on a first end of the surgical device. The angled guide may be angled relative to the longitudinal axis of the outer shaft. The surgical device includes an elongated inner shaft having a second end and a third end. The inner shaft is removably coupled to the outer shaft and configured to axially translate through the outer shaft. The surgical device includes pivotal device having at least one joint and an access tool. The at least one joint may be pivotally coupled to the third end of the inner shaft and to an end of the access tool. The pivotal device may be configured to axially translate through the angled guide into a deployed position.

A surgical device is provided. The surgical device includes a tubular outer shaft having a longitudinal axis and an angled guide positioned on a first end of the surgical device. The angled guide may be angled relative to the longitudinal axis of the outer shaft. The surgical device includes an elongated inner shaft having a second end and a third end. The inner shaft is removably coupled to the outer shaft and configured to axially translate through the outer shaft. The surgical device includes pivotal device having at least one joint and an access tool. The at least one joint may be pivotally coupled to the third end of the inner shaft and to an end of the access tool. The pivotal device may be configured to axially translate through the angled guide into a deployed position.

The present invention relates to a vertebral system comprising a vertebral implant (2) and a plurality of inserts, said implant being designed to be implanted in a vertebral segment composed of at least two vertebrae and including a body (20) the walls whereof delimit a cavity (23) leading to the outside of the body (20) through at least one opening in at least one of said walls, at least one passage (21) passing through the implant (2) from the periphery to an upper or lower surface to receive a bone-anchoring device (1) capable of anchoring the implant (2) in at least one of said vertebrae, the system being characterized in that it includes at least two inserts selected from among the following inserts: at least one graft insert (3, 3A, 3B, 4, 5A, 5B, 6A, 6B, 6C, 6D, 202, 250) capable of being colonized by bone tissue and/or receiving at least one bone tissue graft and/or at least one substitute;
and/or at least one bone-anchoring insert (210) comprising said passage (21) capable of receiving said bone-anchoring device (1).