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. 06, 2022
Filed:
May. 24, 2017
Leica Instruments (Singapore) Pte. Ltd., Singapore, SG;
Roger Spink, Balgach, CH;
LEICA INSTRUMENTS (SINGAPORE) PTE. LTD., Singapore, SG;
Abstract
The invention relates to a medical device () for the observation of a partly fluorescent object () such as tissue () comprising at least one fluorophore (). The fluorophore () absorbs light in at least one spectral excitation waveband () and emits fluorescent light in at least one spectral emission waveband (). In order to be able to observe also non-fluorescent regions in the tissue () without complicated filter arrangement, the medical device () according to the invention comprises at least one filter system () which comprises, in a filter plane (), comprises a filter area () and a transmission window (). The filter area () comprises a band pass filter () having at least one passband () comprising the at least one excitation waveband. The transmission window has a passband () which is wider than the passband () of the filter area (). In particular, a filter layer () of the filter area () may be missing in the transmission window ().