心室辅助装置
By introducing a positive pressure sealing system into the ventricular assist device, the pressure difference of the flushing fluid is used to prevent blood or particulate matter from entering the motor, thus solving the problems of motor damage and coagulation, and achieving effective lubrication and protection of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU HENGRUI HONGYUAN MEDICAL TECH CO LTD
- Filing Date
- 2023-08-31
- Publication Date
- 2026-07-17
AI Technical Summary
The motor assembly of ventricular assist devices is prone to failure due to the entry of blood or particulate matter. Existing designs are not effective in preventing blood or particulate matter from entering the motor, which can lead to motor damage and clotting.
A positive pressure sealing system is adopted, including length section, gap and end pressure, configured so that the pressure of flushing fluid at the proximal end of the gap is greater than the pressure at the distal end, ensuring that flushing fluid flows through the gap and lubricates the motor shaft and bearings, preventing blood or particles from entering the motor and avoiding clotting.
It effectively prevents blood or particles from entering the motor, ensures lubrication of the motor shaft and bearings, avoids motor damage and blood clotting, and improves the reliability and safety of the device.
Smart Images
Figure CN116966415B_ABST