Method for cleaning disposable suction catheters
Method of sterilizing a fiberoptic proctoscope
Flexible light guide
Tubular medical instrument having a flexible sheath with cuffs Patent #: 4066070
ApplicationNo. 05/926748 filed on 07/21/1978
US Classes:600/133, Sterilizable356/241.1Bore inspection (e.g., borescopes, intrascope, etc.)
ExaminersPrimary: Michell, Robert W.
Assistant: Tayon, Jeffrey W.
Attorney, Agent or Firm
International ClassesA61B 1/00 (20060101)
A61B 1/12 (20060101)
Foreign Application Priority Data1977-08-04 JP
AbstractThe present invention discloses herewith an endoscope by which pressurized air is led into an inner portion of the endoscope. A plug of a light-transmitting optic bundle tube which communicates with the inner portion is covered, partially or totally, by a gas-tight cap which has a pressure inlet. The pressurized air is led from the pressure inlet into the inner portion of the endoscope through a terminal part or a gap of the plug.By these provisions, an internal pressure of the endoscope is raised to an extent not smaller than the external pressure of a cleanser in order to prevent the cleanser from flowing into the inner portion of the endoscope when washing and/or sterilizing a non-waterproof endoscope. In addition, a pinhole on a flexible sheath can easily be detected by testing a leakage of the pressurized air as for a waterproof endoscope.