Impeller structure, heart pump, and heart assist system
By designing an impeller structure with gradually varying blade diameter and helix angle, the problem of hemolysis during high-speed rotation of the cardiac pump was solved, achieving higher hydraulic performance and lower hemolysis risk, making it suitable for blood flow support in high-risk PCI procedures and cardiogenic shock surgeries.
CN116785583BActive Publication Date: 2026-07-10MINIMALLY INVASIVE SURGERY MEDICAL TECH (SHANGHAI) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MINIMALLY INVASIVE SURGERY MEDICAL TECH (SHANGHAI) CO LTD
- Filing Date
- 2022-03-15
- Publication Date
- 2026-07-10
Smart Images
Figure CN116785583B_ABST
Abstract
The present application relates to a kind of impeller structure, heart pump and heart auxiliary system, the impeller structure includes hub and blade, the blade is helically arranged on the hub, the blade has first axial section and second axial section separated from distal end to proximal end, the diameter of the blade gradually increases from distal end to proximal end in the first axial section, the helix angle rate of the blade in the first axial section remains constant from distal end to proximal end;Second axial section of the blade is configured to drive fluid movement.The above-mentioned impeller structure, heart pump and heart auxiliary system, when fluid flows along the axial through blade, the gradual change structure of the diameter of the blade does not form the area of larger shear force in first axial section, to reduce the damage to red blood cell and reduce the escape of hemoglobin, can effectively alleviate hemolysis problem.
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