Abstract: A medical device system including a physiological sensor and ultrafiltration unit senses a physiological signal in a patient and computes a fluid status measurement of the patient using the physiological signal. Ultrafiltration therapy is delivered to the patient according to a therapy delivery control parameter established in response to the fluid status measurement.

Abstract: A medical device system including a physiological sensor and ultrafiltration unit senses a physiological signal in a patient and computes a fluid status measurement of the patient using the physiological signal. Ultrafiltration therapy is delivered to the patient according to a therapy delivery control parameter established in response to the fluid status measurement.

Abstract: A medical device system including a physiological sensor and ultrafiltration unit senses a physiological signal in a patient and computes a fluid status measurement of the patient using the physiological signal. Ultrafiltration therapy is delivered to the patient according to a therapy delivery control parameter established in response to the fluid status measurement.

Abstract: A medical device system including a physiological sensor and ultrafiltration unit senses a physiological signal in a patient and computes a fluid status measurement of the patient using the physiological signal. Ultrafiltration therapy is delivered to the patient according to a therapy delivery control parameter established in response to the fluid status measurement.

Abstract: Heart-monitoring systems, apparatus, and methods adapted to detect CS, CI and/or MI. In one embodiment, a system comprising at least two first-tier sensors capable of measuring and converting into signals at least two aspects related to cardiac function, at least one second-tier sensor that is also a first-tier sensor, at least one signal processor capable of transmitting a first-tier and second-tier trigger signal when coronary syndrome, cardiac ischemia or myocardial infarction has been detected, at least one communication device capable of communicating, at least one control element adapted to produce a first-tier and second-tier trigger signal when at least one first-tier sensor exceeds its threshold signal level, to exclude the signal from the first-tier sensor that exceeded its threshold and lower at least one threshold of the at least one first-tier sensor is provided.

Abstract: An implantable pedometer for measuring the amount of joint use is disclosed. The implantable pedometer includes a sensor adapted for detecting indicators of joint usage. A counter is configured for storing count data corresponding to the number of indicators detected by the sensor and a telemetry circuit is configured for transmitting the count data outside of the body.