Ultrasonometer employing distensible membranes

Details Ultrasonometer employing distensible membranes Ultrasonometer employing distensible membranes

A - Human Necessities

61

B

A61B 8/00 (2006.01)

Patent

CA 2242507

An ultrasonometer having opposed ultrasonic transducers with bladders containing a coupling fluid, controls the geometry of the bladder so as to provide immobilization of the patient as well as coupling of the ultrasound to the patient member. The coupling fluid may be hermetically enclosed in sealed chambers slideable toward the patient member or may be fixed in position and use a collar distending the membrane outward by compressing other portions of the membrane inward. A rolling diaphragm-type pump allows inflation of the membranes in an alternative embodiment without exposure of the acoustic coupling liquid to outside contamination. Temperature sensors and heaters communicating with the acoustic coupling fluid to reduce error caused by changes in the fluid's temperature.

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