US 7,575,552 B2
	Ultrasonic probe with acoustic medium
Koetsu Saito, Nakano-ku (Japan)
Assigned to Panasonic Corporation, Osaka (Japan)
Appl. No. 10/559,881 PCT Filed May 19, 2005, PCT No. PCT/JP2005/009121 § 371(c)(1), (2), (4) Date Dec. 07, 2005, PCT Pub. No. WO2005/120356, PCT Pub. Date Dec. 22, 2005.
Claims priority of application No. 2004-172231 (JP), filed on Jun. 10, 2004.
Prior Publication US 2007/0112271 A1, May 17, 2007
Int. Cl. A61B 8/00 (2006.01)

U.S. Cl. 600—459  [600/437]

8 Claims

1. An ultrasonic probe comprising: an ultrasonic transducing part for transmitting and receiving an ultrasonic wave; an outer case for storing the ultrasonic transducing part; and an acoustic medium charged in the outer case, wherein the acoustic medium contains only 1,2-butylene glycol or 1,2-butylene glycol and 1,3-butylene glycol.