Volute pump head for artificial heart, artificial heart pump and (extracorporeal membrane oxygenation) equipment

Abstract

The invention provides a volute pump head for an artificial heart. The volute pump head comprises a volute, wherein the volute comprises a blood inlet and a blood outlet; the volute is internally provided with a fixing shaft; the fixing shaft is sleeved by a magnetic body; a conical impeller of an opening structure is mounted on the outer side of the magnetic body; when the magnetic body is rotated, the conical impeller is driven to rotate; a first gap is formed between the fixing shaft and the magnetic body; and when the conical impeller is driven to rotate by the magnetic body, a part of blood flows upwards through the first gap, and the conical impeller is suspended in the blood. The invention further provides an artificial heart pump and (extracorporeal membrane oxygenation) equipment.According to the pump head for the artificial heart provided by the invention, due to height and inclination designing of a first blade and a second blade, sufficient washing can be benefited, and thrombus and blood cell damage can be reduced; and due to designing of the conical impeller and the fixing shaft in the volute, heat can be effectively reduced, thrombosis can be reduced, and blood celldamage can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a volute pump head for an artificial heart, an artificial heart pump and ECMO equipment. Background technique [0002] ECMO is the English abbreviation for extracorporeal membrane oxygenation (extracorporeal membrane oxygenation). It is an important technology for life support for critically ill patients with severe cardiopulmonary failure. ECMO equipment mainly includes artificial heart pumps, oxygenators, and Oxygen tube. [0003] The pump head of the power pump is used in conjunction with the power pump for extracorporeal circulation or circulatory assistance in cardiac surgery. There are many problems in the clinical application of the pump head in the prior art, such as easy generation of thrombus, blood cell destruction, priming Exhaust complex, blood flow resistance and other issues. In the prior art, the patent application CN201510272655.9 discloses a blood flow...

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Problems solved by technology

[0003] The pump head of the power pump is used in conjunction with the power pump for extracorporeal circulation or circulatory assistance in cardiac surgery. There are many problems in the clinical application of the pump head in the prior art, such as easy generation of thrombus, blood cell destruction, priming Exhaust complex, large blood flow resistance and other issues

In the prior art, the patent application CN201510272655.9 discloses a blood flow guiding device of a centrifugal magnetic levitation artificial heart pump, which alleviates the problem of blood stagnation to a certain extent, but it mainly eliminates the stagnation of blood flow from the perspective of drainage , to eliminate thrombus, but it still has the problems of blood cell destruction, blood damage, and thrombus formation

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