Title:
LIGHT-EMITTING OPTICAL FIBER WITH WORKED TIP END AND IN-BODY ILLUMINATION DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/133119
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a device which uses an optical fiber for illumination to thereby allow the tip end location of a medical tube such as a nasal feeding tube to be seen from the outside of a body when the tube is inserted into the body, and which, when attached to a surgical instrument such as a surgical knife, irradiates a surgical site when the surgical instrument is used for surgery. The tip surface of a distal light-emitting section (9) of an optical fiber (3) is formed into a curved concave-convex surface to emit light. The light from the light-emitting section is emitted toward the center of a sphere or an oval sphere (focal point) so that the light is concentrated onto the center portion or a focal point to create a spot illuminance higher than the surrounding light, and thus the device can be used to visually confirm the tip end location and to irradiate the surgical site. Specifically, provided that a metal ball (13) is embedded in a curved concave surface (11) of the distal light-emitting section (9), an extremely bright spot is generated on the immediate rear side of the site where the metal ball (13) is most deeply embedded. As such, the in-body tip end location of the tube can be confirmed more accurately.
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Inventors:
KINOSHITA MASAHIRO (JP)
IWATA OSUKE (JP)
MOCHIZUKI MANABU (JP)
MOCHIZUKI TAKAYUKI (JP)
IWATA OSUKE (JP)
MOCHIZUKI MANABU (JP)
MOCHIZUKI TAKAYUKI (JP)
Application Number:
PCT/JP2015/001091
Publication Date:
September 11, 2015
Filing Date:
March 03, 2015
Export Citation:
Assignee:
UNIV KURUME (JP)
SUGA ZOUKEI KOUGYO CO LTD (JP)
SUGA ZOUKEI KOUGYO CO LTD (JP)
International Classes:
G02B6/00; A61B19/00; A61J15/00; F21V8/00; G02B6/02; G02B6/26; G02B6/32
Foreign References:
| JPS62120705U | 1987-07-31 | |||
| US20020110319A1 | 2002-08-15 | |||
| JP2013198644A | 2013-10-03 | |||
| JP2008224979A | 2008-09-25 | |||
| JPS5926701A | 1984-02-13 |
Attorney, Agent or Firm:
YOSHIKAWA, Koji et al. (JP)
Koji Yoshikawa (JP)
Koji Yoshikawa (JP)
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