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:
Sep. 15, 1992
Filed:
Jan. 04, 1991
Applicant:
Inventors:
Georges Wagnieres, Lutry, CH;
Hubert van den Bergh, Goumoens-la-Ville, CH;
Philippe Monnier, Lausanne, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
128397 ; 128395 ; 606 15 ; 606 17 ; 604 21 ;
Abstract
A bronchoscope has a fibre-optic apparatus for the photodynamic treatment of tumors in the region of the furcate branches of the bronchi, the divergent pencil of rays (13), which emerges from the end face (9) of an optical fibre, striking a lens arrangement consisting of two microlenses (14,15) which, owing to the spherical aberration, deflect edge rays (23) in the divergent pencil of rays (13) of the optical fibre (8) in such a manner that a homogeneous sharp-edged emerging pencil of rays is formed.