Curved passive acoustic driver for magnetic resonance elastography

摘要

An acoustic driver system includes an active acoustic driver and a passive acoustic driver. The active acoustic driver is configured to produce oscillating acoustic energy. The passive acoustic driver is acoustically connected to the active acoustic driver and is configured to receive the oscillating acoustic energy and to convert it into shear waves. The passive acoustic driver includes a housing member and a vibrating member. The housing member includes a housing member cavity. The vibrating member is disposed at least partially within the housing member cavity. The vibrating member permanently retains a curved shape while disposed within the housing member cavity.

主权项

1. A passive acoustic driver comprising:
a housing member comprising a housing member cavity; a vibrating member disposed at least partially within the housing member cavity, wherein the vibrating member permanently retains a curved shape while disposed within the housing member cavity; and (1) a coil wrapped around the housing member; or (2) a cover member disposed over and attached to the housing member, the vibrating member disposed between the housing member and the cover member, the cover member covering an end of the housing member and an end of the vibrating member.