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:
Jul. 24, 2001
Filed:
Dec. 09, 1998
Surgical instrument for mechanical removal of bone cement, and process for production of shock waves
Joachim Schmidt, Gladbach, DE;
Wolfgang Merkle, Linnich, DE;
Andreas Menne, Meersburg, DE;
Bernard Simon, La Cure, FR;
Denis Klopfenstein, Morges, CH;
Ferton Holding, , CH;
Abstract
In a surgical instrument for the mechanical removal of bone cement (,), comprising a longitudinal housing (,) with a cylinder (,) in which a piston element can be reciprocated by a drive means (,), wherein the piston element on the distal end (,) of the cylinder (,) exerts an impact on a chisel tool supported axially in the housing (,), it is provided that the piston element (,) comprises a projectile (,) adapted to be accelerated to a high final speed and inducing a shock wave into the chisel tool comprising a metallic shock wave transmission probe (,), the probe tip (,) of the chisel tool transmitting the shock wave to the bone cement (,) at a low movement amplitude of the probe tip (,).