CardioMEMS Technology

CardioMEMS Technology 

CardioMEMS Implant  

When the heart is unable to pump enough blood to meet the body’s demands, blood pressure within the heart is elevated and can lead to heart failure (HF). Significant HF progression over a period of days is known as acute decompensation and leads to hospitalization. 

How Does the CardioMEMS Technology Work? 

The CardioMEMS™ HF System uses a miniaturized, wireless monitoring sensor that is implanted in the pulmonary artery (PA) during a minimally invasive procedure to directly measure PA pressure. The system allows patients to transmit PA pressure data from their homes to their health care providers allowing for personalized and proactive management to reduce the likelihood of hospitalization. 

The implantable sensor is a completely sealed capsule that uses microelectromechanical systems (MEMS) technology, which allows the creation of sensors with measurement stability and energy efficiency. All of the sensor components are made of materials that have been chosen for their durability, robustness, biocompatibility, and insensitivity to changes in body chemistry or biology. The sensor is powered by radio frequency (RF) energy. It is implanted into the pulmonary artery using minimally invasive techniques via a catheter and is designed to last the lifetime of the patient. 

The sensor does not have a battery or leads and is very small. Once implanted, the sensor wirelessly sends pressure readings to the external patient electronic system. There is no pain or sensation for the patient during the readings. The electronics transmit the readings to a secure website where it can be seen by the patient’s clinician. 
The external measurement system wirelessly tracks frequency and uses it to determine the pressure in the pulmonary artery. 

At home, HF patients use a portable electronic unit and a special pillow containing an antenna to take daily sensor readings. This is a simple process that takes only a few minutes. The patient’s electronic unit is turned on and the patient lies on the pillow. The electronic unit uses audible signals telling the patient to press the button to initiate a reading. The pressure readings are then wirelessly transmitted to a secure website.

CardioMEMS portable unit

Clinicians access patients’ pressure readings and trending data transmissions using the patient management website, providing valuable clinical insight for guiding treatment decisions. Automated alerts will be sent to health care providers if pressure readings fall outside of specified ranges.