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. 02, 1990
Filed:
Aug. 26, 1988
Abstract
Improved laser-induced shockwave lithotripsy in which pulsed laser radiation situated in the infrared region is concentrated by means of an optical wave guide at a concrement to be destroyed which is surrounded with an aqueous rinsing liquid. The concrement is destroyed mechanically by laser-induced breakdown of the rinsing liquid, giving rise to shockwave and cavitation. The improvement resides in the presence in the rinsing liquid of a metal compound selected from the group consisting of water-soluble salts of metals of the ferrous group of the periodic table, complex compounds of said metals of the ferrous group of the periodic table, water-soluble salts of magnesium and water-soluble salts of calcium, the metal compounds being present in a concentration not exceeding 50 mmol/l, relative to their metal content. The presence of the metal compounds lowers the energy required for said breakdown.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile