Control Devices TRIZ Cases
- Implanted Blood Flow Measurement Using LVAD Motor Heat
Motor heat and temperature sensing enable continuous implanted blood flow measurement in vascular support systems without catheters or extra heaters.
- Implantable LVAD Controller Cooling for Heat Pain Alerts
Temperature monitoring triggers neck thermal stimulation or medical alerts when an implantable LVAD controller overheats, reducing pain risk.
- Rectangular Membrane Blood Pump for Low-Shear Partial Support
Wave-like electromagnetic membrane actuation moves blood with lower shear, helping partial-support pumps reduce thrombosis and hemolysis.
- Dual Membrane Ventricular Assist Pump for Minimally Invasive Implantation
Alternating upper and lower membrane pumps maintain blood flow at higher-than-heart frequency while enabling smaller VAD implantation with lower surgical risk.
- Electrode Patch Assembly for Intravascular Pump Volume Sensing
Flexible low-profile electrode tabs on an intravascular blood pump enable real-time ventricular volume measurement without extra catheters.
- Intravascular Blood Pump Anchoring With Tether and Power Lead
A tethered anchoring path and separate power lead keep an intravascular blood pump stable while supporting external control and retrieval.
- Flexible Electrode Patch for Intravascular Ventricular Volume Sensing
A flexible electrode patch adds real-time ventricular volume sensing to an intravascular blood pump without extra catheters or profile increase.
- Cardiac Assist Drive Pressure Profiling for Systolic and Diastolic Support
Customized pump pressure, venting, and suction control let a cardiac assist drive support both systole and diastole while adapting to erratic heart function.
- Magnetically Coupled Intravascular Rotary Pump for Cardiac Support
A magnetically coupled intravascular rotary pump adapts blood flow to ventricle measurements for continuous cardiac support and organ perfusion.
- Offset-Motor Catheter Pump for High Flow With Lower Hemolysis
A laterally positioned motor drives a flexible-shaft impeller to support percutaneous insertion, high flow, and lower hemolysis risk.
- Pulsatile Ventricle Unloading for Heart-Synchronized Blood Flow
Pulsatile impeller support synchronized with heart contraction unloads the left ventricle while reducing hemolysis and preserving recovery.
- IABP Signal Quality Assessment for Precise Counterpulsation Timing
Multi-parameter ECG and arterial pressure checks screen noisy IABP signals before counterpulsation, improving timing accuracy and support.
- Implantable Pump Motion Sensing for Cardiac Assist Monitoring
Implantable motion sensors track cardiac assist pump movement continuously, enabling earlier detection of malfunctions and treatment complications.
- Electromagnetic Vascular Pump for Pulsatile Flow and Thrombosis Reduction
Electromagnetic actuation drives piezoelectric chambers to create pulsatile blood flow, reducing thrombosis and hemolysis in vascular support.
- Ventricular Assist Pump Speed Modulation for Artificial Pulse
A repeating multi-speed pump cycle creates pulsatile blood flow to mimic physiologic pulse and reduce blood stasis in ventricular assist devices.
- Extracorporeal Limb Perfusion With NIRS-Guided Oxygenation Control
An extracorporeal pump and NIRS feedback restore extremity blood flow at controlled pressure to reduce limb ischemia during intervention.
- VAD Driveline AC Power Modulation Against Corrosion Failure
AC power and encoded signaling cut DC bias and corrosion in VAD drivelines while redundant wires maintain pump power and communication.
- Pressure-Sensing Ventricular Assist Pump Control for Hemodynamic Adaptation
Real-time pulmonary artery pressure feedback lets an implantable blood pump adjust flow and speed to match changing hemodynamic needs.
- Bearingless Blood Pump Motor With Magnetic Levitation in Compact VADs
A compact segmented stator and magnetic levitation keep the rotor suspended, preserving blood flow while reducing implant space and wear.