Development of telemetric ICP transducer.
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概要
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An implantable telemetry epidural pressure sensor has been developed to monitor the intracranial pressure (ICP) after an operation in the field of cerebro-surgery. This sensor is embedded under the scalp to measure the intracranial pressure on dura mater.This sensor has microbatteries, operates on FM-FM active telemetry using a semiconductor pressure sensor at the pressure receiving area. A subcarrier of 24kHz and the main carrier on 80MHz band are generated on both surfaces of a 14mm dia. alumina substrate. The power unit has two microbatteries. A reed switch installed at the top of the sensor is operated by an external magnetic field only when a monitoring. An antenna is embedded under the scalp to allow contact with the body.Experiments on dogs and 8 cases of clinical applications were made and realized measurement of ICP with nonrestriction.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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