Turbine drive mechanism, conduit pump and ventricular assist circulation device
By utilizing a fluid power source through a turbine drive mechanism, and through the design of rectifier blades and turbine blades, the problems of heat generation in the duct pump and impurities entering the blood are solved, achieving a simple structure, good sealing performance, and overload safety.
CN117379682BActive Publication Date: 2026-07-21MINIMALLY INVASIVE SURGERY MEDICAL TECH (SHANGHAI) CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MINIMALLY INVASIVE SURGERY MEDICAL TECH (SHANGHAI) CO LTD
- Filing Date
- 2022-07-05
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing catheter pumps use electric motors as the drive mechanism, which leads to heat generation, complex structure, increased volume, and potential problems such as short circuits and impurities entering the blood.
Method used
The turbine drive mechanism, including a rectifier stator and a turbine rotor, uses fluid as a power source. The rectifier blades are tilted to adjust the flow direction, and the side of the turbine blade facing the fluid is concave to drive the turbine rotor to rotate, thus avoiding heat generation and the entry of impurities.
Benefits of technology
It achieves zero heat generation, simple structure, long life, good sealing performance, avoids impurities from entering the blood, and has good overload safety and stepless speed regulation capability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117379682B_ABST
Abstract
The application provides a turbine driving mechanism, a catheter pump and a ventricular assist circulation device, wherein the rectification blades of the rectification stator are arranged in a radial inclination manner, used for adjusting the flow direction of the fluid, so that the fluid can flow to the turbine blades of the turbine rotor in an inclination manner after passing through the rectification stator, the side of the turbine blades facing the fluid is a concave surface, and the fluid can apply a thrust to the turbine blades after reaching the concave surface of the turbine blades, thereby driving the turbine rotor to rotate and further drive the rotating shaft to rotate. The turbine driving mechanism in the application uses fluid as a power source and does not actively generate heat. The heat generated by mechanical friction can be quickly taken away by the flow of the fluid, avoiding the introduction of an additional heat dissipation structure. The structure is simple, the service life is long, and stepless speed regulation is easy to realize. Good sealing performance can be achieved, and impurities cannot be brought into the blood. Even if the turbine rotor is stopped due to a large load, damage, short circuit, overheating, sparks and other hazards will not occur, and good overload safety is achieved.
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