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:
Nov. 02, 1999
Filed:
Nov. 05, 1996
Michael L Earle, Sierra Madre, CA (US);
Other;
Abstract
A motorized mixer for mixing bone cement for use in attachment of prosthetics and method for using the mixer. The mixer comprises a mixing chamber, a liner in the mixing chamber, an impeller within the liner, a motor for driving the impeller and programmable memory mechanics for regulating the operations of the motor. The liner comprises a basket for receiving vials of bone cement catalyst and a mixing bowl for receiving the bone cement powder. Preferably the two are permanently attached to one another. The mixing bowl is also used for mixing the two components together to produce the bone cement. During mixing the mixing bowl is maintained under a vacuum to withdraw fumes from the bone cement and to prevent gases from being mixed into the bone cement. Once mixing is complete, a U-shaped trap door releases the mixed bone cement from the mixing bowl, through a discharge tube and into a bone cement cartridge. By maintaining the interior of the bone cement cartridge under a vacuum, the withdrawal of the bone cement is simplified.