Anchoring device for a spinal implant, spinal implant and implantation instrumentation

A combination for treating a spine, the combination comprising:

• an anchor comprising
• an anterior end configured for penetration of a vertebral surface,
• a posterior end configured for impacting the anchor into a vertebra,
• a longitudinal axis extending between the anterior end and the posterior end,
• an elongated plate-like body disposed along the longitudinal axis, the plate-like body having a width and a height defined by a first cross section of the plate-like body oriented generally perpendicular to the longitudinal axis, and
• a lock abutment surface disposed between the anterior end and the posterior end and oriented angularly to the longitudinal axis;
• and
• a spinal implant comprising
• an access surface accessible with the implant implanted in a spine,
• a vertebral contact surface,
• a passage extending from the access surface to vertebral contact surface defining an insertion access for the anchor, the passage having a width and a height defined by a second cross section of the passage oriented generally perpendicular to the insertion axis, and
• a lock comprising
• an anchor abutment surface disposable along the passage and orientable angularly to the insertion axis, the anchor abutment surface configured to operatively mate with the lock abutment surface of the anchor, and
• a flexible portion having a resting position defining a first anchor abutment surface position in which the anchor abutment surface is extendable into the passage and engagable with the lock abutment surface of the anchor, and a second anchor abutment surface position in which the anchor abutment surface is retracted from the passage to permit passage of the anchor through the passage past the lock.