Ventricular auxiliary device for right heart of child

Abstract

The invention provides a ventricular auxiliary device for the right heart of a child, belongs to the field of medical instruments, and solves the problems that an existing sliding bearing is prone to heating, blood coagulation is caused by heating, thrombus is further caused and the like, the ventricular auxiliary device comprises a pump cylinder and a rotor arranged in the pump cylinder, and a liquid inlet is formed in one end of the pump cylinder; a liquid inlet is formed in one end of the pump cylinder, a liquid outlet is formed in the other end of the pump cylinder, the rotor can rotate to enable blood to flow from the liquid inlet to the liquid outlet, the two ends of the rotor are connected with supporting pieces through rotating shafts, the supporting pieces are connected with the rotating shafts through bearings, and the bearings are provided with a plurality of open grooves. The magnetic core can be driven by in-vitro magnetic coupling driving equipment to rotate, and the magnetic core can rotate to drive the hub to rotate. The heating phenomenon at the joint of the rotating shaft and the bearing can be reduced, and thrombus is not prone to being generated.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a ventricular assist device for children's right heart. Background technique [0002] The research and development of cardiac assisted circulation and the auxiliary pump used has a history of several decades. Diaphragm pumps, centrifugal pumps, and axial flow pumps have been developed successively to be used in open heart surgery, low cardiac output in heart surgery, and auxiliary circulation during the transition period of heart transplantation. [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, and the cables are from the body to the outside, which is easy to cause infection, electrical failures, high fe...

AI Technical Summary

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, and the cables are from the body to the outside, which is easy to cause infection, electrical failure, high fever, and complicated structure

When the blood pump is working, due to the high speed, the supporting parts are easy to wear and tear. The rotating shaft and the supporting parts are generally connected by sliding bearings. The traditional sliding bearings have the problem of easy heating, and heating will cause blood coagulation, which in turn will cause thrombus.

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