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:
Feb. 04, 2014
Filed:
May. 27, 2009
Eijiro Sato, Stamford, CT (US);
Eiji Matsuda, Hachioji, JP;
Eijiro Sato, Stamford, CT (US);
Eiji Matsuda, Hachioji, JP;
Abstract
An endoscope includes an image pick-up unit extending in the axial direction within a distal end forming portion, and a channel tube extending in the axial direction within the distal end forming portion and including a parallel portion arranged parallel with the image pick-up unit, and the outer peripheral surface of the parallel portion includes a facing side diameter reducing portion arranged on a side facing the image pick-up unit and, with respect to a reference circumferential surface including a common central axis to the inner peripheral surface of the parallel portion, closer to a central axis side than the reference circumferential surface in a cross section orthogonal to the axial direction, and a diameter keeping portion arranged on a side other than the side facing the image pick-up unit and whose at least a part overlaps the reference circumferential surface.