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:
Mar. 17, 1992
Filed:
Apr. 02, 1990
Johannes Weissmuller, Schwaig, DE;
Christian Ell, Erlangen, DE;
Jurgen Hochberger, Erlangen, DE;
Ludwig Bonnet, Kntitlingen, DE;
Achim Kolb, Bretten, DE;
Richard Wolf GmbH, Knittlingen, DE;
Abstract
In an endoscope designed for laser lithotripsy use is made of a laser lithotripsy unit having a guide tube insertable in the barrel of the endoscope, which guide tube encloses a laser light guide which carries at its distal end a fused-on head to concentrate the beam. The laser light guide is guided in the guide tube so as to be axially displaceable and immobilizable, thus making it possible for the distance between the head and the concretion intended for destruction to be adjusted to obtain optimum energy transmission, the relevant conditions being maintained during the operation by virtue of the fact that the distal end of the guide tube for the lithotripsy unit is held in contact with the concretion.