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Patent Searching and Data


Title:
SURGICAL ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2019/198350
Kind Code:
A1
Abstract:
This surgical endoscope is provided with an elongate insertion unit which is inserted into the body, two objective optical systems (31, 32) which are arranged in the tip of the insertion unit and which have parallax relative to each other, and a single flat glass plate (4) which is arranged on the tip surface (2b) of the insertion unit and which covers the object side of the two objective optical systems (31, 32). The object-side surface (4a) and the image-side surface (4b) of the flat glass plate (4) are both flat, the flat glass plate (4) is formed from glass having a Young's modulus of greater than or equal to 335,000 MPa, the outer peripheral surface (4c) of the flat glass plate (4) is covered by a metal film, and is fixed with solder (S) to the tip surface (2b).

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Inventors:
NISHIMURA, Sayaka (2951 Ishikawa-machi Hachioji-sh, Tokyo 07, 〒1928507, JP)
Application Number:
JP2019/006706
Publication Date:
October 17, 2019
Filing Date:
February 22, 2019
Export Citation:
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Assignee:
OLYMPUS CORPORATION (2951 Ishikawa-machi, Hachioji-shi Tokyo, 07, 〒1928507, JP)
International Classes:
A61B1/00; A61B1/313; G02B23/24
Foreign References:
US20170172394A12017-06-22
JPH09265047A1997-10-07
JP2000010022A2000-01-14
JP2004016410A2004-01-22
JP2017215586A2017-12-07
JP2007143580A2007-06-14
US20130102846A12013-04-25
JP2016160162A2016-09-05
Attorney, Agent or Firm:
UEDA, Kunio et al. (Olive International Patent Office, 39F The Landmark Tower Yokohama 2-2-1, Minatomirai, Nishi-ku, Yokohama-sh, Kanagawa 39, 〒2208139, JP)
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