Surgery – Truss – Pad
Patent
1981-03-18
1983-10-11
Cohen, Lee S.
Surgery
Truss
Pad
A61B 1000
Patent
active
044086121
ABSTRACT:
An ultrasonic scanning device for examination of viscera comprises a control section containing an electric motor for scanning by ultrasonic beams, a flexible insertion section connected to the control section, a chamber provided in the distal end portion of the insertion section, a scanning mechanism provided in the chamber to scan a viscus by ultrasonic beams sent forth from an ultrasonic vibrator, an axially extending hole which is formed in the insertion section for communication with the chamber and into which a flexible rotation torque-transmitting linear member is inserted to connect the motor to the scanning mechanism, a seal member for tightly liquid sealing the lateral wall of the control section, and a liquid filled in the chamber and axially extending hole. The application of the linear member has the advantage of enabling the insertion section to be reduced in outer diameter, rendered flexible and easily inserted into a coeliac cavity. Further, the flow of the liquid from the chamber to the axially extending hole reduces the rotation torque of the scanning mechanism.
REFERENCES:
patent: 3779234 (1973-12-01), Eggleton et al.
patent: 4008603 (1977-02-01), Paulissen
patent: 4274421 (1981-06-01), Dory
Hisanaga et al., "A Transesophageal . . . Scanner . . . ", Proc. 23rd Ann. Meeting of the AIUM, 1978, p. 47.
Hisanaga et al., "A New Trans-Digestive-Tract Scanner . . . ", Proc. 23rd Ann. Meeting of the AIUM, 1978, p. 108.
Taylor et al., "A High-Resolution . . . System", Ultrasound in Med. & Bio., vol. 5, No. 2, pp. 129-138, 1979.
Cohen Lee S.
Olympus Optical Co,. Ltd.
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