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:
Mar. 26, 1985
Filed:
Dec. 22, 1983
Carl T Brighton, Malvern, PA (US);
Jonathan Black, King of Prussia, PA (US);
Trustees of the University of Pennsylvania, Philadelphia, PA (US);
Abstract
Disclosed is an improved bone-piercing cathode for providing electrical stimulation of osteogenesis at a plurality of locations. A conventional bone-piercing cathode is modified by adding a number of 'ports' extending through the insulative covering to expose the cathode permitting a flow of osteogenesis stimulating current therethrough. In a preferred embodiment, seven ports are spaced three on one side and four on the other of a conventional bone-piercing cathode which is inserted into the fracture site. Sufficient current is supplied to the cathode in order to insure that each port as well as the insulation-bare wire junction can supply 20 microamperes of osteogenesis stimulating current into the body tissues. This permits bone growth stimulation adjacent a plurality of sites on the cathode.