Measuring and testing – Probe or probe mounting
Patent
1990-11-02
1992-09-08
Noland, Tom
Measuring and testing
Probe or probe mounting
356241, 358 98, G02B 2324, G01M 1900
Patent
active
051448483
ABSTRACT:
An intra-tube traveling apparatus includes a moving unit to which an endoscope is held and which is self-driven to travel in a pipe path, and a movement control section for controlling movement of the moving unit. The moving unit includes an elastic actuator which is extended/contracted in the radial direction and axial directions of the pipe path upon reception of the pressurized fluid, balloons attached to the front and rear ends of the elastic actuator. Each of the balloons is radially expanded/deformed upon reception of the pressurized fluid therein to be locked to the inner surface of the pipe path. The movement control section includes a pressurized fluid supply unit, a switching control section, a stop signal output switch for outputting a stop signal for stopping a movement operation of the moving unit, and a unit fixing portion for supplying the pressurized fluid to the balloons upon reception of the stop signal from the stop signal output switch to expand/deform the lock portions, thereby fixing the moving unit to the inner surface of the pipe path.
REFERENCES:
patent: 3381714 (1968-05-01), Johnson
patent: 3453869 (1969-07-01), Cherne
patent: 3495546 (1970-02-01), Brown et al.
patent: 3837214 (1974-09-01), Guest
patent: 4601204 (1986-07-01), Fournot et al.
patent: 4848168 (1989-07-01), Negishi
patent: 5025215 (1991-06-01), Pirl
Patent Abstracts of Japan; Grp P754, vol. 12, No. 329; Abs pub. date Sep. 7, 1988 63-91555).
Adachi Hideyuki
Miyanaga Hirofumi
Nagayoshi Mitsugu
Sakiyama Katsunori
Sato Tomoaki
Noland Tom
Olympus Optical Co,. Ltd.
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