Patent · US Expired

Surgical instrument for mechanically removing bone cement

US6524319B1 · kind B1 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Ferton Holding S.A. · CH

Inventors

Joachim Schmidt · Schlangen, DE
Thorsten Raabe · Buggensegel, DE
Wolfgang Merkle · Meersburg, DE

Key dates

Filing date	Jun 21, 2001
Grant date	Feb 25, 2003
Priority date	—
Expiry date	Jun 21, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2002/4681
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

For a surgical instrument for removing distal and/or peripheral cement (2) and/or a medullary block in a medullary cavity (8) when endoprostheses are replaced, the surgical instrument comprising a drilling tool (4) and an extraction tool (6), it is provided that the drilling tool (4) and the extraction tool (6) comprise a bore (14,16) extending coaxially to the respective tool shaft (12) for receiving a centering bolt (10), that the bore diameter of the coaxial bores (14,16) of the drilling tool (4) and the extraction tool (6) is substantially adapted to the diameter of the centering bolt (10), and that the centering bolt (10) anchored at a predetermined location in the cement (2) or the medullary block and the medullary space (5) located distally below it is configured as an axial guide for the drilling tool (4) and the extraction tool (6), respectively.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.