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Device for assisting heart during functional failure

A heart and desired position technology, applied in the field of medical equipment and machinery, to achieve the effect of reusing, avoiding crushing, and reducing risks

Active Publication Date: 2021-10-29
MAGASSIST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although blood compatibility can be improved through hydraulic design optimization, for a rotary blood pump with blood-immersed bearings, direct contact between rotating and stationary parts is unavoidable, and it is difficult to injure blood Adverse events play a substantial role in improvement

Method used

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  • Device for assisting heart during functional failure
  • Device for assisting heart during functional failure
  • Device for assisting heart during functional failure

Examples

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Embodiment Construction

[0084] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0085] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be another element in between. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it may be present interveni...

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Abstract

The invention discloses a device for assisting a heart during functional failure. The device can obviously reduce adverse events of blood injury. The device comprises: a catheter; a driving shaft being arranged in the catheter in a penetrating manner; a pump capable of pumping blood to a desired position of the heart through the catheter; and a driving mechanism used for driving the driving shaft to rotate. The driving mechanism comprises a shell; a coil assembly arranged in the shell and is configured to be electrified to generate a magnetic field; a rotor assembly at least partially arranged in the shell, and the rotor assembly is configured to rotate under the action of a magnetic field generated by the coil assembly, wherein the driving shaft is connected with the rotor assembly and is driven by the rotor assembly to rotate; and an isolation part used for forming a first cavity which accommodates the coil assembly and is isolated from fluid, wherein the coil assembly is accommodated in the first cavity.

Description

technical field [0001] The present invention relates to the field of machinery, especially precision machinery, in particular to the field of medical equipment, and more specifically to a device for assisting the heart when it fails. Background technique [0002] Heart failure is a life-threatening disease, and once it progresses to an advanced stage, the one-year mortality rate is about 75%. Given the limited number of heart donors in advanced heart failure, ventricular assist device technology has emerged as a viable therapeutic or alternative treatment option between erected subjects and transplant surgery. However, adverse events caused by current technology still limit the use of ventricular assist devices in the treatment of critically ill subjects. [0003] Adverse events related to blood injury, such as hemolytic neurological events, stroke, and in-pump thrombosis, accounted for 20% of these adverse events, which were mainly attributed to excessive physiological str...

Claims

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Application Information

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IPC IPC(8): A61M60/126A61M60/216A61M60/411
CPCA61M60/126A61M60/216A61M60/411
Inventor 徐嘉颢薛荣媛徐博翎张家良
Owner MAGASSIST CO LTD
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