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:
Dec. 25, 2000
Filed:
Mar. 16, 1999
Parid Turdiu, West New York, NJ (US);
Eugene Irving Gordon, Mountainside, NJ (US);
Joel Hasen, New Providence, NJ (US);
Ronald B Odrich, Bronx, NY (US);
Alan A Winter, Morristown, NJ (US);
Medjet, Inc., Edison, NJ (US);
Abstract
A method and device for the high speed fluid (preferably water) jet removal of dental caries. The water jet is of a controlled upper and lower speed and pressure with a low speed and pressure being of at least 5 to 10 kpsi, sufficient to pierce and flush decayed tissue of a caries with a small beam fluid jet diameter. A pulsed or continuous fluid jet is used to remove and completely flush caries material from a tooth in a time period of under a second with a maximum stagnation pressure of about 30 kpsi, at which point healthy dentin is affected. A coherent or pseudo-coherent water jet operating at high stagnation pressure (range 10,000 to 20,000-psi and no more than 30-kpsi), in a brief burst (.apprxeq.1 second) and small beam diameter (30 to 100-.mu.m) will cleanly remove caries without damage to the tooth structure in particular the sound dentin at the boundary of the caries. No anaesthetic is accordingly required in the absence of a possible exposed nerve.