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:
Apr. 10, 2001
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Robert R. Karpman, Phoenix, AZ (US);
Thomas M. Hansen, Phoenix, AZ (US);
Anna G. U. Brantley, Tempe, AZ (US);
Assignee:
Harrington Arthritis Research Center, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/758 ;
U.S. Cl.
CPC ...
A61B 1/758 ;
Abstract
A method and apparatus for the effective delivery of a material, such as cement, to a desired location in a human. In one embodiment of the invention, a bone screw, including a head portion, a cannulated slotted shaft portion and a tip portion, includes an injection site for removably attaching an injection device, such as a syringe. Since the shaft portion is slotted, injected material flows from the cannulated shaft and is able to exit into surrounding tissue through the slot in the shaft.
Published as: