20240052840. Alternating Pump Gaps simplified abstract (TC1 LLC)
Contents
Alternating Pump Gaps
Organization Name
Inventor(s)
Masamichi Yanai of Ann Arbor MI (US)
Shunzhou Yu of Ann Arbor MI (US)
Tao Zhang of Ann Arbor MI (US)
Alternating Pump Gaps - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240052840 titled 'Alternating Pump Gaps
Simplified Explanation
The patent application describes a blood pump system with a pump housing, impeller, stator, bearing mechanism, and position control mechanism for adjusting gaps within the pump chamber to control washout rates.
- The system includes a pump housing and an impeller for rotating in a pump chamber.
- The impeller has a first side and a second side, with a stator having drive coils for applying torque to the impeller.
- At least one bearing mechanism suspends the impeller within the pump chamber.
- A position control mechanism moves the impeller axially to adjust the size of gaps, controlling washout rates.
- The first gap is between the first side and the housing, while the second gap is between the second side and the pump housing.
Potential applications of this technology:
- Medical devices for circulatory support in patients with heart failure.
- Blood pumps for extracorporeal membrane oxygenation (ECMO) systems.
- Ventricular assist devices for patients awaiting heart transplants.
Problems solved by this technology:
- Controlling washout rates to prevent clotting and maintain optimal pump performance.
- Adjusting impeller position to accommodate varying flow requirements in different clinical scenarios.
- Enhancing the efficiency and reliability of blood pump systems.
Benefits of this technology:
- Improved patient outcomes by reducing the risk of thrombosis and other complications.
- Enhanced control and customization of blood flow in medical devices.
- Increased longevity and performance of blood pump systems.
Original Abstract Submitted
a blood pump system includes a pump housing and an impeller for rotating in a pump chamber within the housing. the impeller has a first side and a second side opposite the first side. the system includes a stator having drive coils for applying a torque to the impeller and at least one bearing mechanism for suspending the impeller within the pump chamber. the system includes a position control mechanism for moving the impeller in an axial direction within the pump chamber to adjust a size of a first gap and a size of a second gap, thereby controlling a washout rate at each of the first gap and the second gap. the first gap is defined by a distance between the first side and the housing and the second gap is defined by a distance between the second side and the pump housing.
