Lamina prosthesis for delivery of medical treatment

• US 6,312,469 B1
• Filed: 09/13/1999
• Issued: 11/06/2001
• Est. Priority Date: 09/13/1999
• Status: Expired due to Fees

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Gielen, Frans L. H., Knuth, Henricus M. P.
• Primary Examiner(s): Isabella, David J.
• Application Number:
  US09/394,352
• Time in Patent Office: 785 Days
• Field of Search: 606/61, 623/17.16
• US Class Current: 623/17.11
• CPC Class Codes: A61B 17/7071 Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
• CPC Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2002/2821 Bone stimulation by electromagnetic fields or electric current for enhancing ossification
• CPC Class Codes: A61F 2002/30677 Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
• CPC Class Codes: A61N 1/326 for promoting growth of cells, e.g. bone cells
• CPC Class Codes: A61N 1/36071 Pain

Abstract

A prosthetic lamina that replaces a portion of the lamina bone structure. The prosthetic lamina may be configured to deliver a variety of medical therapies, such as electrodes for electrical stimulation, fluid channels for delivering drugs, catheters for dispensing drugs and various systems for healing bone tissue.

Claims

1. A multiple function prosthetic lamina configured for implantation adjacent to a spinal cord and an intermediate vertebral bone structure of a patient, the lamina comprising:

means for at least one of mechanically stabilizing and mechanically supporting the intermediate vertebral bone structure, the stabilizing and supporting means comprising a body and a support means, the body being configured to replace at least a portion of the intermediate vertebral bone structure of the patient when implanted between an upper vertebral bone structure and a lower vertebral bone structure of the patient, the support means being configured to at least partially surround and provide protection to the spinal cord, the body and support means being configured for operable attachment to one another,

means for delivering at least one of a drug therapy and an electrical stimulation therapy to at least one of a portion of the patient'"'"'s spinal cord and a portion of the intermediate vertebral bone structure, the therapy delivery means being at least partially integrated into or forming a portion of the prosthetic lamina, the therapy delivery means further being configured to deliver the at least one therapy to at least one of the spinal cord and the intermediate vertebral bone structure.

2. The prosthetic lamina apparatus of claim 1, wherein the body and the support means are formed as one integral piece.

3. The prosthetic lamina apparatus of claim 1, wherein the delivery treatment system comprises a plurality of electrodes.

4. The prosthetic lamina apparatus of claim 1, wherein the delivery treatment system comprises a system of drug delivery channels.

5. The prosthetic lamina apparatus of claim 1, wherein the delivery treatment system comprises a combination of electrodes and drug delivery channels.