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:
Oct. 19, 1993
Filed:
Sep. 19, 1991
John T Cleveland, Jr, Jacksonville, FL (US);
Xomed-Treace Inc., Jacksonville, FL (US);
Abstract
The aspiration system with positive pressure includes a fluid flow network having a vacuum source at one end and a suction instrument at another end. Suction is regulated by a control valve that can be actuated by a foot pedal. Suction communication between the vacuum source and the suction instrument can be prevented by placing the control valve in the closed position. A positive pressure input device is included in the fluid flow network and is also actuatable by the foot pedal to provide an impulse of positive pressure at the suction instrument. The positive pressure impulse is provided when the aspiration process is being hindered by blockage of the suction inlet end of the suction instrument. A puff of positive pressure is used to expel material from the suction inlet end of the suction instrument. The use of a positive pressure impulse at the suction end of a suction instrument is also applicable to release material transported by the suction instrument from one location to another.