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US6821277: Percutaneous vertebral fusion system

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Filing Information

Inventor(s) George P. Teitelbaum ·
Assignee(s) University of Southern California Patent and Copyright Administration ·
Attorney/Agent(s) Knobbe, Martens, Olson & Bear, LLP ·
Primary Examiner Henry Bennett ·
Assistant Examiner Kathryn Odland ·
Application Number US9747066
Filing date 12/21/2000
Issue date 11/23/2004
Prior Publication Data
Predicted expiration date 02/27/2022
Patent term adjustment 433
U.S. Classifications 606/61  ·
International Classifications --
Kind CodeB2
International Classifications 606 61 · 606 62 · 606 63 · 606 71 · 606 73 · 606 86 · 606 60 · 606 59 ·
Related U.S. Application DataCROSS-REFERENCE TO RELATED APPLICATION
This Application takes priority from U.S. Provisional Patent Application No. 60/213,385, filed Jun. 23, 2000 and entitled “Percutaneous Interbody Fusion Device,” the contents of which are incorporated into this disclosure by reference in its entirety.
35 Claims, 17 Drawings


Abstract

A method of repositioning or fixing a first vertebrae or portion of a first vertebrae comprising fixing a bone screw in the first vertebrae and a bone screw in a second vertebrae, where each bone screw has a portal, and inflating an inflatable balloon between the portals, thereby creating a rigid structure between the bone screws.

Independent Claims | See all claims (35)

  1. 1. A method of repositioning or fixing one or more unstable, separated or displaced vertebrae or one or more portions of one or more vertebrae in a patients vertebral column, the method comprising: (a) identifying a patient who is a suitable candidate for undergoing the method; (b) making a stab incision in the patients skin overlying the patients vertebral column at or near the level of the vertebrae or portion of vertebrae to be repositioned or fixed; (c) creating a first tract from the incision to the posterior periosteal surface of the vertebrae; (d) incising the periosteum and extending the first tract into the cortex of the vertebrae; (e) inserting a first guidewire into the first tract; (f) advancing a bone screw comprising a portal and a tip, and screwdriver over the first guidewire; (g) applying torque to the bone screw using the screwdriver, thereby fixing part of the tip of the bone screw into the vertebrae while the portal of the bone screw is exterior and dorsal to the vertebrae and the portal is open parallel to the long axis of the vertebrae column; (h) removing the screwdriver and the first guidewire; (i) repeating (c) through (h) for at least one vertebrae which is neither unstable, separated or displaced and which is adjacent to the vertebrae or portion of the vertebrae that is being repositioned or fixed, or repeating (c) through (h) for the cranial-ward portion of the sacrum of the patient; (j) inserting an inflatable connection rod comprising a proximal end, a distal end and an inflatable balloon between the proximal end and the distal end, between the portals of the bone screws; and (k) inflating the inflatable balloon thereby creating a rigid structure between the inflated inflatable connection rod and the bone screws; thereby repositioning or fixing the one or more unstable, separated or displaced vertebrae or the one or more portions of one or more vertebrae unilaterally.
  2. 14. A method of repositioning or fixing a first vertebrae that is unstable, separated or displaced or that has one or more unstable, separated or displaced portions, the method comprising: (a) fixing one or more than one bone screw in the first vertebrae and one or more than one bone screw in a second vertebrae; (b) inserting an inflatable balloon between the portal of the bone screw in the first vertebrae and the portal of the bone screw in the second vertebrae; and (c) inflating the inflatable balloon thereby creating a rigid structure between the balloon and the bone screws; thereby repositioning or fixing the first vertebrae or portion of the first vertebrae.
  3. 20. A method of repositioning or fixing a first vertebrae that is unstable, separated or displaced or that has one or more unstable, separated or displaced portions, the method comprising: fixing a first bone screw having a portal in the first vertebrae; fixing a second bone screw having a portal in a second vertebrae; and inserting a guidewire through a tissue tract and through the portal of the first bone screw in the first vertebrae and through the portal of the second bone screw in the second vertebrae.
  4. 25. A method of repositioning or fixing one or more unstable, separated or displaced vertebrae or one or more portions of one or more vertebrae in a patients vertebral column, the method comprising: identifying a patient who is a suitable candidate for undergoing the method; making a stab incision in the patients skin overlying the patients vertebral column at or near the level of the vertebrae or portion of vertebrae to be repositioned or fixed; creating a first tract from the incision to the posterior periosteal surface of the vertebrae; incising the periosteum and extending the first tract into the cortex of the vertebrae; inserting a first guidewire into the first tract; advancing a bone screw comprising a portal and a tip, and a driver over the first guidewire; applying torque to the bone screw using the driver, thereby fixing part of the tip of the bone screw into the vertebrae while the portal of the bone screw is exterior and dorsal to the vertebrae and the portal is open parallel to the long axis of the vertebrae column; removing the driver and the first guidewire; repeating (c) through (h) for at least one vertebrae which is neither unstable, separated or displaced and which is adjacent to the vertebrae or portion of the vertebrae that is being repositioned or fixed, or repeating (c) through (h) for the cranial-ward portion of the sacrum of the patient; and inserting a guidewire between the portals of the bone screws.
  5. 26. A method of repositioning or fixing a first vertebrae that is unstable, separated or displaced or that has one or more unstable, separated or displaced portions, the method comprising: fixing a first bone screw having a portal in the first vertebrae; fixing a second bone screw having a portal in a second vertebrae; inserting an inflatable balloon through the portal of the first bone screw in the first vertebrae and through the portal of the second bone screw in the second vertebrae; and inflating the balloon.

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Other Publications

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