In-vitro magnetic driven liquid suspension axial-flow type blood pump
A liquid suspension, axial flow technology, applied in the field of medical devices, can solve the problems of affecting the life of the blood pump, easy to cause thrombosis, fast wear speed, etc., to achieve high safety and practicability, reduce thrombosis complications, weight and Volume reduction effect
Active Publication Date: 2020-05-05
SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE
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Problems solved by technology
[0003] Blood pumps represented by axial-flow blood pumps and centrifugal blood pumps have become the research focus of implantable blood pumps due to their advantages of less blood damage and being suitable for intrathoracic installation. However, the disadvantages of the disclosed blood pumps are They are all active implants, which are prone to electrical failures, high heat generation, complex structure, dead angles, and easy to cause thrombosis
When the blood pump is working, due to the high speed, the supporting parts are easy to wear and tear, which seriously affects the life of the blood pump. The second-generation blood pump uses sliding bearings to support the impeller. Due to the small bearing area of the bearing, the wear speed is fast; the third-generation blood pump The pump adopts magnetic suspension bearings, although it can avoid wear and tear, but the structure is complex, resulting in problems such as large volume and high failure rate of the blood pump
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] The purpose of the present invention is to provide an extracorporeal magnetically driven fluid-suspended axial-flow blood pump, which is small in size, strong in practicability, simple in structure and high in safety.
[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific em...
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The invention discloses an in-vitro magnetic driven liquid suspension axial-flow type blood pump which comprises an in-vitro driving system and an implant type blood pump, wherein the implant type blood pump comprises a blood pump device and accessories; the implant type blood pump is implanted into a chest through a surgical operation; and the implant type blood pump is driven to work by the in-vitro driving system through coupling magnetism so as to achieve a function of direct mechanical ventricular assistance. The in-vitro magnetic driven liquid suspension axial-flow type blood pump is a device that a pump is separated from a motor and is implanted without a power supply, faults caused by electric engineering of an implant type blood pump are avoided, the implant type blood pump needsno stator winding or iron core and has no problem of electric heating in a body, and the weight and the size can be greatly reduced.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to an extracorporeal magnetically driven fluid-suspended axial-flow blood pump. Background technique [0002] Heart disease is the number one killer of human beings, and all kinds of heart diseases eventually manifest as heart failure. At present, there is still no simple and efficient way to treat advanced heart failure. Only heart transplantation and artificial heart are the most effective surgical treatments. Due to the serious restriction of the body source, it has become a symbolic technology, so the artificial heart has become the last ray of hope for most heart failure patients to save their lives. The artificial heart is referred to as "blood pump" for short, including total artificial heart and auxiliary artificial heart (or "ventricular assist device"). At present, several auxiliary blood pump products have obtained clinical approval in the world and are widely use...
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IPC IPC(8): A61M1/10A61M1/12
CPCA61M2205/04A61M60/818A61M60/205A61M60/40A61M60/148
Inventor 刘中民彭远仪万峰李国荣
Owner SHANGHAI EAST HOSPITAL EAST HOSPITAL TONGJI UNIV SCHOOL OF MEDICINE