Bone treatment systems and methods
AssigneeDFine, Inc.
InventorsCsaba Truckai, John Shadduck
Life of this patent
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Abstract
The invention provides instruments and methods for prophylactic treatment of an osteoporotic vertebral body or for treating a vertebral compression fracture (VCF). In one exemplary method, a probe system uses a high speed rotational cutter for abrading or cutting a plane within vertebral cancellous bone. Optional irrigation and aspiration sources are included in the probe system for removing abraded bone debris. In one embodiment, the high speed cutter uses a tissue-selective abrading surface that abrades or cuts bone but does not cut soft tissue. After the creation of a weakened cut plane in the bone, reduction of the fracture requires reduced forces.
Claims14
A method of reducing a vertebral fracture, comprising:
- introducing a cutting system into a vertebra;
- cutting a substantially horizontal plane in at least one of cancellous bone and cortical bone thereby creating a weakened plane;
- and
- applying forces substantially perpendicular to the weakened plane to reduce the vertebral fracture.
A bone treatment device, comprising:
- an elongated assembly having a working end carrying at least one flexible rotatable member having an abrasive surface, the least one flexible member moveable between a first linear shape and a second curved shape;
- a rotation mechanism operatively coupled to rotatable member.
Dependencies are inferred from the claim text.