Apparatus, method and system for the treatment of spinal conditions and fixation of pelvis and long bones

• US 6,336,927 B2
• Filed: 12/29/1998
• Issued: 01/08/2002
• Est. Priority Date: 10/08/1993
• Status: Expired due to Fees

• Current Assignee: Chaim Rogozinski
• Original Assignee: Chaim Rogozinski
• Inventors: Rogozinski, Chaim
• Primary Examiner(s): WOO, JULIAN W
• Application Number:
  US09/222,727
• Publication Number:
  US 20010016742A1
• Time in Patent Office: 1,106 Days
• Field of Search: 606/60, 606/61, 606/69, 606/70, 606/71, 606/72, 606/73, 606/75, 606/104, 606/105, 623/17.11
• US Class Current: 606/286
• CPC Class Codes: A61B 17/7007 Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
• CPC Class Codes: A61B 17/701 Longitudinal elements with a non-circular, e.g. rectangular, cross-section A61B17/7005, A61B17/7007 take precedence
• CPC Class Codes: A61B 17/7011 Longitudinal element being non-straight, e.g. curved, angled or branched adjustable length longitudinal elements A61B17/7014; A61B17/7019 takes precedence, e.g. coil springs
• CPC Class Codes: A61B 17/7019 Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
• CPC Class Codes: A61B 17/7035 Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
• CPC Class Codes: A61B 17/7038 to a different extent in different directions, e.g. within one plane only
• CPC Class Codes: A61B 17/7049 Connectors, not bearing on the vertebrae, for linking longitudinal elements together A61B17/7055, A61B17/7053, A61B17/7019 take precedence
• CPC Class Codes: A61B 17/7055 connected to sacrum, pelvis or skull
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 17/8605 Heads, i.e. proximal ends projecting from bone
• CPC Class Codes: C07C 67/03 by reacting an ester group with a hydroxy group
• CPC Class Codes: C07C 67/52 by change in the physical state, e.g. crystallisation
• CPC Class Codes: C07C 67/54 by distillation
• CPC Class Codes: C07C 69/82 Terephthalic acid esters

Abstract

An apparatus, method and system for treating spinal conditions by moving or spatially fixing at least one vertebra relative to another vertebra. The invention includes a link member the ends of which are configured to be secured to adjacent vertebrae and which are offset from a central portion of the link member. The link members can be in the form of a C-shaped or V-shaped rod or plate to form the offset. The offset provides increased bone volume that can be used for grafts or fusion. Attachment structure in the form of bone screws, bolts, or hook members are provided to secure the link members to respective vertebrae or other bones. A plurality of link members can be connected in chain-like fashion to connect multiple points on a plurality of vertebrae or other bones even though those points are nonlinear. In another aspect of the invention, a multi-directional attachment member is provided and may be used with the link members to form a spinal implant or external bone fixation system.

Claims

1. An integrally formed one-piece spinal implant link member adapted for linking two adjacent vertebrae in a fixed relationship, said link member having opposite ends and a central portion connecting said opposite ends, said opposite ends each having an aperture therein configured to receive means for attaching said link member to said two adjacent vertebrae, whereby said aperture in one of said opposite ends is adapted to be attached to one of said adjacent vertebrae and said aperture in the other of said opposite ends is adapted to be attached to the other of said adjacent vertebrae, said central portion being offset from said opposite ends of said link member and defining an open space between said opposite ends, said open space being disposed adjacent said central portion and extending away from said central portion to a line connecting said apertures in said opposite ends, and each of said opposite ends having means to lock said opposite end to an opposite end of a second link member in an overlapping manner precluding relative rotation of said link member and said second link member, whereby said means for attaching said link member to one of said adjacent vertebrae also secures said link member and said second link member together in a fixed angular position relative to each other and to said one of said adjacent vertebrae.

2. The link member of claim 1, wherein said central portion is V-shaped.

3. The link member of claim 2, wherein said link member is a flat plate.

4. The link member of claim 1, wherein said central portion is C-shaped.

5. The link member of claim 4, wherein said link member is a flat plate.

6. The link member of claim 1, wherein said link member is a flat plate.

7. The link member of claim 6, wherein said central portion is offset relative to said opposite ends so as to leave the surface of the lateral margin of both of said adjacent vertebrae substantially uncovered when said link member is attached to said adjacent vertebrae.