Abstract: The present invention relates to a discal annular assistance device and the surgical instruments necessary for the insertion and removal thereof. This new device assists the annulus fibrosus following the exeresis of the nucleus pulposus of a lumbar intervertebral disc, to stop accelerated progression towards the discoligamentous instability of a vertebral unit operated on for a nucleus pulposus hernia.

Abstract: The present invention is related to the field of devices for introducing and extracting media from the body, more specifically to the devices for introducing media into the body by means of intravascular access, and in particular, provides a puncture device for accessing the vascular system comprised of: a needle having a tubular body, with said tubular body having a distal end and a proximal end, a cutting edge in the distal end of said tubular body, and an expansion of the external diameter having a bulb shape next, in distal-proximal direction, to said cutting edge. In this way, a puncture device is provided for accessing the vascular system that solves the problem of allowing the echograph monitoring of the needle, but whose fabrication implies a reduction in the technical difficulty for its obtention, while it avoids the accidental perforation of the distal wall of the vessel of interest.

Abstract: The present invention relates to a discal annular assistance device and the surgical instruments necessary for the insertion and removal thereof. This new device assists the annulus fibrosus following the exeresis of the nucleus pulposus of a lumbar intervertebral disc, to stop accelerated progression towards the discoligamentous instability of a vertebral unit operated on for a nucleus pulposus hernia.