| 摘要 |
PROBLEM TO BE SOLVED: To provide an air jet diagnostic device for an endoscope which allows acquisition of the local equivalent rigidity (hardness), the equivalent viscosity, and the equivalent mass of the internal walls of internal organs and foreign bodies (tumor) inside the body cavity with a high degree of accuracy by exposing a diseased part or its periphery inside the patient's body cavity to spatially and temporally sharp jet flow of air in a pulse form. SOLUTION: An endoscope 1 comprising an operational part 2 and an insertional part 3 has an instrument channel formed from the operational part 2 to the insertional part 3, guides compressed air from an outside air source 6 to an instrument channel port 30, and is provided with an air jet probe 9b, equipped with a pressure controlling valve inside the air jet probe, to emit pressurized air in a pulse form to an examination site at an instrument channel outlet 31 at the distal end of the insertional part 3. COPYRIGHT: (C)2003,JPO
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