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.

Date of Patent:
Oct. 06, 2015

Filed:

Jan. 31, 2011
Applicants:

Ryo Machida, Kouza-gun, JP;

Takeshi Suga, Hino, JP;

Masahiro Kawauchi, Fuchu, JP;

Inventors:

Ryo Machida, Kouza-gun, JP;

Takeshi Suga, Hino, JP;

Masahiro Kawauchi, Fuchu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/06 (2006.01); A61B 1/00 (2006.01); A61B 5/02 (2006.01);
U.S. Cl.
CPC ...
A61B 1/0646 (2013.01); A61B 1/00186 (2013.01); A61B 5/02007 (2013.01);
Abstract

Using a transmittance adjusting device decreasing a transmittance of at least from 460 nm to 500 nm, which is a wavelength range between a point of end of a first optical absorption peak of hemoglobin and a point of start of a second optical absorption peak of hemoglobin, to between 20% and 70% for illuminating light from an illuminating light supply section or reflected light from an object, during observation of the inside of a body cavity, enhanced display of vessels with color reproduction that has no difference from that in observation under visible light, enabling color reproduction similar to that in observation under visible light and further enhanced display of vessels.


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