Patent ID: 11877724
Assignee: OLYMPUS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 0:
1. An insertion apparatus comprising:
an insertion section configured to be inserted into a subject;
a distal end member having a base disposed on a distal end of the insertion section;
a recess formed in the base, the base having an opening forming surface surrounding a periphery of the recess, the periphery of the recess defining an opening; and
a lid including a contact surface larger than the opening of the recess, the contact surface contacts a first portion of the opening forming surface when the lid is arranged to close the opening of the recess,
wherein a gap is formed when the lid is arranged to close the opening of the recess, the gap being formed between an outer peripheral edge of the lid and a second portion of the opening forming surface adjacent to the outer peripheral edge of the lid.