The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2011
Filed:
Sep. 25, 2002
Darryl E. Barnes, Rochester, MN (US);
David G. Lewallen, Rochester, MN (US);
Kenton R. Kaufman, Rochester, MN (US);
Darryl E. Barnes, Rochester, MN (US);
David G. Lewallen, Rochester, MN (US);
Kenton R. Kaufman, Rochester, MN (US);
Mayo Foundation for Medical Education and Research, Rochester, MN (US);
Abstract
Permanent magnets are implanted in bone to unload compressive forces at joints using the repulsive force therebetween. A porous metal container is implanted first and becomes fixed in place by bone growth. The permanent magnet is then inserted in the container and retained in place. A magnet prescription system includes a display and input device which enables a user to alter parameters such as magnet size, strength and placement and calculate and display the repulsive force that will result.