Feedback Options for Cardiovascular Applications

In sensitive medical applications like cardiovascular care, encoders do more than just track mechanical movements; they bridge the gap between motion and electronic feedback to keep cardiac and vascular devices functioning as they should. The reason is simple: these applications demand a meticulous approach to motor speed control during procedures. By confirming the motor speed in real-time, medical professionals can adjust and optimize procedures, ensuring the highest level of accuracy and success. Let’s dive into the specific role that encoders play in cardiovascular applications.

How Encoders are Used in Cardiovascular Applications

As described above, encoders are responsible for providing feedback regarding motor speed and rotor position while the motor is in operation, which is essential for tracking motion when precision and accurate motor monitoring are critical. The encoder is typically mounted on the rear end bell of the motor, requiring a rear shaft from the motor.

The choice of encoders in cardiovascular applications often leans towards incremental, which tracks precise motion relative to a position and delivers feedback in real-time. Magnetic encoder technology is normally used, given that motors are typically enclosed in a device. This technology uses a magnetized disc that rotates with the motor rotor with changes to the magnetic field detected by sensors on the PCB. The challenge with magnetic technology is the possible influence from an external magnetic field, which can create interference; however, cardiovascular applications usually do not encounter external fields since they are used in controlled environments like clinics and operating rooms. LPR, or lines per revolution, is used to select the appropriate encoder for cardiovascular use. This is based on the resolution required for monitoring the motor during operation.

Selecting the proper encoder for your application can be challenging. Rely on the expertise of Portescap's motion experts, who are well-equipped to guide you in determining the optimal solution tailored to your specific cardiovascular application needs. Reach out to us here to discuss!