Ultrasonic diagnostic apparatus for examination of a coeliac cav

Details Ultrasonic diagnostic apparatus for examination of a coeliac cav Ultrasonic diagnostic apparatus for examination of a coeliac cav

1982-03-30

1984-08-21

Howell, Kyle L.

Surgery

Truss

Pad

128 4, A61B 1000

Patent

active

044664435

ABSTRACT:
An ultrasonic diagnostic apparatus for examination of a coeliac cavity, wherein a chamber sealed from the outside is provided near the distal end portion of an insertion section. An ultrasonic scanning motor provided with an ultrasonic transducer is held in the sealed chamber. This ultrasonic scanning rotor is rotated by a force supplied from a drive power source in an operation section through the rotation torque-transmitting member. A drive passage through which the rotation torque-transmitting member extends communicates with the sealed chamber. That portion of the drive passage which is located near the operation section is sealed by a packing. The drive passage and sealed chamber are filled with a liquid ultrasonic-permeable medium.

REFERENCES:
patent: 4375818 (1983-03-01), Suwaki et al.
Hisanaga, K. et al., "A Trans-Esophageal Real-Time Sector Scanner with an Oil-Filled Cell", Prod. of 23rd Ann. AIUM, 1978.

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