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:
May. 26, 1981
Filed:
Jun. 01, 1979
Kazumasa Matsuo, Hachioji, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A stabbing apparatus for diagnosis of living body comprising a tubular member (1) having a sharp-edged tip end portion (X), a first light guide means (5) inserted in the tubular member (1) and having one end disposed at the tip end portion (X), a second light guide means (6) inserted in the tubular member (1) and having one end disposed at the tip end portion (X), a light source means (8) applying light to the other end of the first light guide means (5) in order to deliver light through the tip end portion (X), and a photosensing means (10) at the other end of the second light guide means (6) for sensing light reflectedly applied to the tip end portion (X). The photosensing means (10) of the apparatus discriminatingly indicates situations where the tip end portion (X) is within the abdominal wall of a living body and where the portion (X) has passed through the abdominal wall.