Intravertebral widening device, injection device, and kit and method for kyphoplasty

摘要

An widening device (4) for bone cavities (4) extends from a proximal end (8) to a distal end (10) along an extension axis (X), said distal end (10) having an elastically deformable element (56) suitable to pass from a relaxed configuration for placing the distal end (10) within an osteal body (6,6',6'',6''') to a deformed configuration for forming a cavity within said osteal body (6,6',6",6'''). The elastically deformable element (56) permits to create a bone cavity in a regular and uniform way.