Patent ID: 11930998
Assignee: OLYMPUS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 2:
3. The vent control valve for an endoscope according to claim 1, further comprising:
a first watertight member configured to maintain watertightness between an outer peripheral surface of an adaptor attaching portion of the housing member, and an inner peripheral surface of a watertightness maintaining hole of the through-hole;
a second watertight member configured to maintain watertightness between an outer peripheral surface of a rotational main body of the rotational member, and a main body housing hole of the housing hole;
a third watertight member configured to maintain watertightness between an inner peripheral surface of a main body portion hole of the rotational member, and an outer peripheral surface of a main body portion of the tubular member; and
a fourth watertight member and a fifth watertight member disposed in predetermined positions between an inner peripheral surface of a watertightness maintaining portion of the tubular member and an outer peripheral surface of a large diameter portion of the shaft body, and configured to maintain watertightness.