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:
Feb. 25, 2003
Filed:
Jun. 21, 2001
Joachim Schmidt, Bergisch Gladbach, DE;
Thorsten Raabe, Salem-Buggensegel, DE;
Wolfgang Merkle, Meersburg, DE;
Ferton Holding S.A., Delmont, CH;
Abstract
For a surgical instrument for removing distal and/or peripheral cement ( ) and/or a medullary block in a medullary cavity ( ) when endoprostheses are replaced, the surgical instrument comprising a drilling tool ( ) and an extraction tool ( ), it is provided that the drilling tool ( ) and the extraction tool ( ) comprise a bore ( ) extending coaxially to the respective tool shaft ( ) for receiving a centering bolt ( ), that the bore diameter of the coaxial bores ( ) of the drilling tool ( ) and the extraction tool ( ) is substantially adapted to the diameter of the centering bolt ( ), and that the centering bolt ( ) anchored at a predetermined location in the cement ( ) or the medullary block and the medullary space ( ) located distally below it is configured as an axial guide for the drilling tool ( ) and the extraction tool ( ), respectively.