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ENDOSCOPE

  • US 3,730,175 A
  • Filed: 03/24/1971
  • Issued: 05/01/1973
  • Est. Priority Date: 03/24/1971
  • Status: Expired due to Term
First Claim
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1. In an endoscope including a control housing, an elongated tube, and a distal end portion connected to said control housing through said elongated tube so as to be inserted into a hollow portion of living body and the like to be inspected by said endoscope, said distal end portion being provided in its peripheral wall with at least a light transmitting window such as a viewing window or a photographing window, plastic layer member fluidtightly covering at least a part of said peripheral wall of said distal end portion including said light transmitting window, said plastic layer member having an opening and a radially inwardly offset peripheral edge portion, said radially inwardly offset peripheral edge portion of said opening forming a shoulder portion being closely fitted in said light transmitting window, and a transparent plate member being fitted in said radially inwardly offset peripheral edge portion of said opening and fluidtightly bonded thereto.

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