Peristaltic pumps are widely used in medical devices due to their ability to handle fluids with precision and without direct contact between the fluid and the pump components. This design minimises the risk of contamination, making them ideal for applications such as:
- Intravenous (IV) Infusion Systems: Delivering medicines and fluids directly into the bloodstream.
- Dialysis Machines: Circulating blood and dialysate in renal treatments.
- Enteral Feeding Systems: Administering nutrition to patients who cannot eat orally.
- Chemotherapy Infusion Pumps: Precisely controlling the delivery of chemotherapy drugs.
- Laboratory Applications: Handling reagents and samples in diagnostic equipment.
Motor Types Commonly Used in Peristaltic Pumps
The choice of motor is crucial for ensuring accurate flow rates, reliability, and compliance with medical standards. The main motor types include:
Stepper Motors
- Functionality: Provide precise control over rotation, making them suitable for applications requiring accurate dosing.
- Advantages: High torque at low speeds, often do not require feedback systems.
- Considerations: Can produce noise and vibration; microstepping can improve smoothness.
Brushless DC (BLDC) Motors
- Functionality: Offer smooth operation and high efficiency, ideal for continuous use.
- Advantages: Low maintenance, long lifespan, and quiet performance.
- Considerations: Require electronic controllers and more complex design.
Brushed DC Motors
- Functionality: Simplest motor type, often used in basic infusion pumps.
- Advantages: Easy speed control with voltage adjustment.
- Considerations: Brushes wear over time; less smooth operation compared to BLDC or stepper motors.
Key Motor Features for Medical Peristaltic Pumps
When selecting a motor for medical peristaltic pumps, consider the following:
- Precision and Repeatability: Ensures accurate fluid delivery.
- Smooth, Low-Pulse Torque: Minimises pulsation and maintains consistent flow.
- Compact and Lightweight Design: Suitable for portable medical devices.
- Low Noise and Vibration: Enhances patient comfort and device reliability.
- Compliance with Medical Standards: Adherence to ISO 13485, IEC 60601, and other relevant standards.
Supplier for Medical Peristaltic Pump Components
Micromech are a leading supplier of products tailored specifically for medical applications, including motors and components optimised for medical peristaltic pumps.
In addition to supplying components, Micromech can modify components to suit our customer’s requirements including:
- Fitting connectors
- Adding cable looms
- Fitting temperature sensors
- Fitting lead screws to motor shafts
- Assembly of motors, gearboxes and encoders
- Labelling
Need assistance with a new project? Contact our engineers — we’re ready to help get the ball rolling.
