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Medical instrument implantation blood pump

A technology of medical devices and blood pumps, which is applied in the field of implanted pumps and medical device blood pumps, can solve the problems that it is difficult to meet the performance requirements of anti-hemolysis and anti-thrombosis, and achieve the effect of improving anti-hemolysis and anti-thrombosis with simple components

Inactive Publication Date: 2016-11-02
焦雷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pump body materials have been difficult to meet performance requirements such as anti-hemolysis and anti-thrombosis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A medical device blood pump, the blood pump includes a pump body, the pump body includes: a cast titanium alloy pump body, a zirconia-based ceramic material layer on the outer surface of the pump body, and a titanium carbide-based ceramic material layer on the inner surface of the pump body,

[0017] It is characterized in that the chemical composition of the cast titanium alloy pump body is (weight): Zn: 14.3%, Al: 6.2%, Fe: 4.4%, Si: 1.1%, Mg 1.2%, Ni 0.73%, Cu: 0.54%, Cd : 0.22﹪, Zr: 0.072﹪, Ce: 0.033﹪, Mn: 0.051﹪, V: 0.062﹪, B: 0.084﹪, the balance is Ti and unavoidable impurities;

[0018] The preparation method of the cast titanium alloy pump body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: the melting temperature is 1813°C, and the pouring temperature is 1754°C; The body is heated, the temperature is raised to 950°C, the heating rate is 300°C / hour, and the temperature is kept for 6 hours, ...

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PUM

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Abstract

Disclosed is a medical instrument implantation blood pump. The blood pump comprises a pump body, the pump body comprises a cast titanium alloy pump body, a zirconium oxide system ceramic material layer at the outer surface of the pump body and a titanium carbide system ceramic material layer at the inner surface of the pump body, and components of a titanium alloy are simple. Surface processing procedures of acidwashing and passivation are performed on the titanium alloy with such components so that the problems of surface black dots and the like are avoided, and an obtained surface is neat.

Description

technical field [0001] The invention relates to a medical device blood pump, which belongs to implant pumps and belongs to the technical field of medical devices. Background technique [0002] At present, the application of extracorporeal circulation equipment for cardiac surgery has become a routine method for the treatment of heart diseases. Different degrees of cardiac insufficiency may occur before and after surgery, and cardiac assist devices and other means are needed to replace the pumping function of the heart, maintain blood circulation throughout the body, and improve the function of the original heart. The blood pump is the core component of the ventricular assist device and provides power for the ventricular assist device. Currently commercialized ventricular assist device blood pumps mostly adopt the principle of balloon extrusion or centrifugal drive, and there are complications such as air embolism and hemolysis. Existing pump body materials have been diffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12C22C14/00C22C1/02C22F1/18C21D9/00C23G1/10C23C22/34C23C24/08C04B35/56C04B35/48C04B35/622
CPCA61M2205/02A61M2205/0211A61M2207/00A61M60/148C04B35/481C04B35/5611C04B35/62222C04B2235/3232C04B2235/3418C04B2235/3813C04B2235/3839C04B2235/3843C04B2235/3886C04B2235/6562C04B2235/6565C04B2235/6567C21D9/0068C22C1/02C22C14/00C22F1/183C23C22/34C23C24/082C23C28/042C23C2222/20C23G1/106
Inventor 焦雷
Owner 焦雷
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