Lamina prosthesis for delivery of medical treatment

• US 6,481,440 B2
• Filed: 12/26/2000
• Issued: 11/19/2002
• Est. Priority Date: 09/13/1999
• Status: Expired due to Fees

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Knuth, Henricus M. P., Gielen, Frans L. H.
• Primary Examiner(s): Isabella, David J.
• Application Number:
  US09/746,021
• Publication Number:
  US 20010000803A1
• Time in Patent Office: 693 Days
• Field of Search: 623/17.11, 623/17.15, 623/17.16, 623/18.11, 623/18.12, 623/23.76, 623/23.49, 606/69, 606/77, 606/71, 606/61, 606/62, 600/9, 607/50, 607/51, 607/52
• US Class Current: 128/898
• 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 is described. The prosthetic lamina may be configured with means for delivering a variety of medical treatments, such as electrodes for electrical stimulation, fluid channels, catheters for dispensing drugs and means for healing bone tissue.

Claims

1. A method of delivering treatment to the spinal cord, comprising:

providing a lamina prosthesis assembly comprising a prosthetic lamina having a body and a support means, and a delivery treatment system operatively attached to the body providing a therapy path between an exterior of the body and an interior of the body to delivery therapy to the spinal cord;

inserting the body adjacent the spinal cord and the support means between two vertebra; and

delivering treatment through the delivery treatment system to the spinal cord.

2. The method of claim 1, further comprising:

configuring the delivery treatment system as a system of electrodes carried in the interior of the body with an electrical current path electrically connecting the system of electrodes to an electrical connector on the exterior of the body; and

stimulating the spinal cord with the system of electrodes.

3. The method of claim 1, further comprising:

configuring the delivery treatment system as a system of drug delivery channels communicating between the interior of the body and the exterior of the body; and

dispensing drugs to the spinal cord through the system of drug delivery channels.

4. A prosthetic lamina apparatus for delivering treatment to the spinal cord, comprising:

a prosthetic means for replacing a portion of the lamina having a body and a support means;

a treatment means operatively attached to the prosthetic means for delivering treatment to the spinal cord.

5. The prosthetic lamina apparatus of claim 4, wherein the body and the support means are formed as one integral piece.

6. The prosthetic lamina apparatus of claim 4, wherein the delivery treatment system comprises a system of electrodes carried in an interior of the body wit an electrical current path electrically connecting the system of electrodes to an electrical connector on an exterior of the body.

7. The prosthetic lamina apparatus of claim 4, wherein the delivery treatment system comprises a system of drug delivery channels communicating between an interior of the body and an exterior of the body.