| 摘要 |
<p>An implantable medical device (10), such as a cardiac pacer (12), defibrillator or drug delivery system, includes a container housing (14) the required power source (16) and circuitry and a header portion (20) molded or glued to the container housing. Sensors, including physiological parameter sensors (32, 34, 36) as may be necessary to control and implement the operation of the implantable device, or a telemetry link, or both, are disposed and sealed within the header (20). The header may include electromagnetic focusing devices to enhance the performance of the sensors. The sensors may include two pulse oximetry sensors that provide differential measurements to improve detection of arterial blood flow.</p> |
