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US6936070: Intervertebral disc prosthesis and methods of implantation

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Filing Information

Inventor(s) Nabil L. Muhanna ·
Assignee(s) None listed in document.
Attorney/Agent(s) Womble Carlyle Sandridge & Rice, PLLC ·
Primary Examiner Cary E. O'Connor ·
Assistant Examiner Candice C. Stokes ·
Application Number US10047587
Filing date 01/15/2002
Issue date 08/30/2005
Predicted expiration date 01/15/2022
U.S. Classifications 623/171.2  · 623/171.1  ·
International Classifications --
Kind CodeB1
International Classifications 623 1712 · 623 1711 ·
Related U.S. Application DataCROSS REFERENCE TO RELATED APPLICATION
This application claims the benefit of Provisional Application No. 60/262,974, filed Jan. 17, 2001.
17 Claims, 4 Drawings


Abstract

The present invention provides biocompatible intervertebral disc prostheses that are resilient to compressive forces, that may be adapted to an intervertebral space. When implanted in the spinal column of a patient, the intervertebral disc prostheses according to the present invention is intended to maintain the separation between adjacent vertebrae and provide shock absorbent protection. Flexibility of the spinal column may also be maintained. The present invention further provides methods for the implantation of the intervertebral disc prosthesis of the present invention and an optional intervertebral spacer into the spinal column of a human or animal patient.

Independent Claims | See all claims (17)

  1. 1. An intervertebral disc prosthesis comprising: a body adapted to fit an intervertebral space between adjacent vertebrae, wherein the body comprises a resilient biocompatible material; and wherein the resilient biocompatible material has at least one defined line for removing a portion of the resilient biocompatible material.
  2. 4. A method of maintaining an intervertebral space between adjacent vertebrae, comprising the steps of: (a) excising only a portion of an intervertebral disc, thereby creating a receiving slot in the intervertebral disc; and (b) inserting into the receiving slot at least one intervertebral disc prosthesis, the intervertebral disc prosthesis comprising a body adapted to fit an intervertebral space between adjacent vertebrae, wherein the body comprises a resilient, compressible, biocompatible material.
  3. 5. An intervertebral disc prosthesis comprising: a body adapted to fit an intervertebral space between adjacent vertebrae, wherein the body comprises a resilient biocompatible material; and wherein the resilient biocompatible material is treated with a blood anti-coagulant.
  4. 6. A method of maintaining an intervertebral space between adjacent vertebrae, comprising the steps of: (a) excising at least a portion of an intervertebral disc, thereby creating a receiving slot; and (b) inserting into the receiving slot at least one intervertebral disc prosthesis, the intervertebral disc prosthesis comprising a body adapted to fit an intervertebral space between adjacent vertebrae, wherein the body comprises a dissected animal pericardium, and wherein the dissected animal pericardium is detoxified, fixed and treated with an anti-calcification process before implantation into a patient.
  5. 7. A method of maintaining an intervertebral space between adjacent vertebrae, comprising the steps of: (a) removing a minimal portion of the bony process of a vertebrae, thereby creating access to a damaged intervertebral disc; (b) excising only a portion of the intervertebral disc, thereby creating a receiving slot in the intervertebral disc; and (c) inserting into the receiving slot at least one intervertebral disc prosthesis, the intervertebral disc prosthesis comprising a body adapted to fit an intervertebral space between adjacent vertebrae, wherein the body comprises a resilient biocompatible material.
  6. 8. A method of maintaining an intervertebral space between adjacent vertebrae, comprising the steps of: (a) making an incision in an intervertebral disc; and (b) inserting a biocompatible material into the interior of the intervertebral disc, the interior of the intervertebral disc being at least partially hollowed out by removal of disc tissue or by disc herniation.
  7. 16. A method of maintaining an intervertebral space between adjacent vertebrae, comprising the steps of: (a) making an incision in an intervertebral disc; (b) selecting an amount of material to be inserted into the interior of the intervertebral disc from a sheet of a biocompatible material, wherein the sheet comprises at least one defined line selected from the group consisting of an indentation, a plurality of indentations, and a plurality of partial perforations; and (c) inserting into the interior of the intervertebral disc the biocompatible material.
  8. 17. A sheet of biocompatible material for use in an intervertebral disc procedure, the sheet comprising at least one defined line selected from the group consisting of an indentation, a plurality of indentations, and a plurality of partial perforations.

References Cited

U.S. Patent Documents

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Foreign Patent Documents

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* cited by examiner

Other Publications

Experience and Short-Term Results with No-React Cardiovascular Implants—Chapter 15—Advances in Anticalcific and Antidegenrative Treatment of Heart Valve Bioprstheses, First Edition, edited by Shlomo Gabbay, M.D., David J. Wheatley, M.D., Silent Partners, Inc, pp. 189-196—1997.
Unsurpassed Cytocompatibility Carotid and Peripheral Vascular Patch—Shelhigh No-React VascuPatch—Shelhigh, Inc. (believed to be known by others prior to Jan. 17, 2001).
Shelhigh N-React—Pericardial Patch—Clinical Results—Shelhigh, Inc.—0318 (believed to be known by others prior to Jan. 17, 2001).
Shelhigh DuraShield—No-React Treated, Dural Repair Patch—Shelhigh, Inc.—0318 (believed to be known by others prior to Jan. 17, 2001).
No-React Detoxification Process: A Superior Anticalcification Method for Bioprostheses Abolhoda, M.D. et al.—1996—The Society of Thoracic Surgeons—Published by Elsevier Science, Inc.—pp. 1724-1730—1996.
Calcification of Bovine Pericardium: Glutaraldehyde Versus No-React Biomodiciation—Abolhoda, M.D. et al.—1996—The Society of Thoracic Surgeons—Published by Elsevier Science, Inc.—pp. 169-174—1996.
Construction Factors Influencing The Shelhigh Porcine Bioprosthesis—Chapter 18—Advances in Anticalcific and Antidenerative—Treatment of Heart Valve Bioprotheses, First Edition, edited by Shlomo Gabbay, M.D., David J. Wheatley, M.D., Silent Partners, Inc., pp. 221-231—1997.
Structure of The Human Intervertebral Disk—Diwan et al.—Current Concepts in Intervertebral Disk Restoration—pp. 454-464—2000.
Review—The Artificial Disc: Theory, Design and Materials—Qi-Bin Bao et al.—Biomaterials 1998—pp. 1157-1167—1996.

Referenced By

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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US6936070 Nabil L. Muhanna Aug 2005
US20060089721 MUHANNA NABIL L Nabil Muhanna et al. Apr 2006
US20070233259 MUHANNA NABIL L Nabil Muhanna et al. Oct 2007