| 摘要 |
PROBLEM TO BE SOLVED: To provide a medical apparatus capable of securely giving the alarm and operation guidance in voice to an operator, and inhibiting unnecessary acoustic radiation to the periphery. SOLUTION: The apparatus has an operation part 1 for an operator such as a patient to perform the medical operation and a super-directional speaker 3 for radiating sound only in the direction of the operator. The alarm voice and the operation guidance voice are radiated from the super-directional speaker 3. COPYRIGHT: (C)2005,JPO&NCIPI
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