US 8,894,656 B2Granted

Expandable bone device

AssigneeExpanding Orthopedics Inc.

InventorsMark M. Levy, Ilan Greenberg

Life of this patent

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Abstract

An expandable bone device including a unitary body extending along a longitudinal axis and including a deformable distal end portion having a collapsed orientation for placement adjacent a spinal structure, the deformable distal end portion including relatively wide, mutually contiguous support surfaces outlined by relatively narrow cutouts, the support surfaces being contiguous with the rest of the unitary body via relatively narrow deformable splines, the deformable distal end portion having an expanded orientation wherein the support surfaces are moved transversely outwards away from and generally parallel to the longitudinal axis, and an actuator coupled to the deformable distal end portion and operative to cause movement of the deformable distal end portion between the collapsed orientation and the expanded orientation.

Claims4

Dependent claims

A method for treating compression fractures of a spine, comprising inserting a expandable device in a collapsed state in bone structures in thoracic or lumbar spine portions, and expanding the expandable bone device to act as scaffolding to support said bone structures, and filling said scaffolding with a filler material, wherein said expandable bone device comprises:

a unitary body constructed of a medically safe metal extending along a longitudinal axis and including a deformable portion having a collapsed orientation for placement adjacent a bone structure and an expanded orientation comprising a three-dimensional prismatic shape, wherein in the collapsed orientation, said deformable portion is non-prismatic and is longer along the longitudinal axis than transverse to the longitudinal axis, and in the expanded orientation, said deformable portion expands outwards in two orthogonal directions which are both perpendicular to the longitudinal axis, wherein in the expanded orientation said deformable portion is longer in one of said orthogonal directions than in the other of said orthogonal directions.

Dependencies are inferred from the claim text.

Facts

Application: 12/395,671Filed 1 Mar 2009 · continuation
Priority: 5 Apr 2004
Published: US 2009/0163918 A125 Jun 2009
Granted: 25 Nov 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

A61B 17/8858
Capable of being assembled or enlarged, or changing shape, inside the bone or disc: laterally or radially expansible
A61F 2/4455
For the spine, e.g. vertebrae or spinal discs: for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion…
A61B 17/70
Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin: spinal positioners or…
A61B 17/7266
With laterally expanding parts, e.g. for gripping the bone: with fingers moving radially outwardly

Family

Application10/816,809Parent of this continuation · filed 5 Apr 2004
US 2009/0163918 A1Pre-grant publication · published 25 Jun 2009
US 7,507,241 B2Parent of this continuation
US 2005/0228391 A1Published application
US 8,894,656 B2This patent

From the US filing history. Foreign family members aren’t listed.