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Implantable blood pump body of medical mechanism

A medical device and pump body technology, applied in the field of medical devices, can solve problems such as 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: 2015-07-01
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

[0033] An implantable blood pump body for medical devices, the pump body comprising: a cast titanium alloy pump body, a zirconia-based ceramic material layer on the outer surface of the pump body, and a titanium oxide-based ceramic material layer on the inner surface of the pump body,

[0034] It is characterized in that the chemical composition of the cast titanium alloy pump body is (weight): Fe: 10%, Al: 8%, Si: 5%, Zn: 2%, Mg 1%, Y: 0.3%, Cu: 0.8%, Cd: 0.2﹪, Zr: 0.07﹪, V: 0.06﹪, B: 0.08﹪, the balance is Ti and unavoidable impurities;

[0035] 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 1810°C, and the pouring temperature is 1750°C; The body is heated, the temperature is raised to 900°C, the heating rate is 300°C / hour, and the temperature is kept for 5 hours, then the temperature is lowered to 600°C, the cooling r...

Embodiment 2

[0042] An implantable blood pump body for medical devices, the pump body comprising: a cast titanium alloy pump body, a zirconia-based ceramic material layer on the outer surface of the pump body, and a titanium oxide-based ceramic material layer on the inner surface of the pump body,

[0043] It is characterized in that the chemical composition of the cast titanium alloy pump body is (weight): Fe: 12%, Al: 9%, Si: 6%, Zn: 3%, Mg 2%, Y: 0.4%, Cu: 0.9%, Cd: 0.3%, Zr: 0.08%, V: 0.07%, B: 0.09%, the balance is Ti and unavoidable impurities;

[0044] 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 1820°C, and the pouring temperature is 1760°C; The body is heated, the temperature is raised to 900°C, the heating rate is 300°C / hour, and the temperature is kept for 5 hours, then the temperature is lowered to 600°C, the cooling r...

Embodiment 3

[0051] An implantable blood pump body for medical devices, the pump body comprising: a cast titanium alloy pump body, a zirconia-based ceramic material layer on the outer surface of the pump body, and a titanium oxide-based ceramic material layer on the inner surface of the pump body,

[0052] It is characterized in that the chemical composition of the cast titanium alloy pump body is (weight): Fe: 11%, Al: 8.5%, Si: 5.5%, Zn: 2.5%, Mg 1.5%, Y: 0.35%, Cu: 0.85%, Cd: 0.25﹪, Zr: 0.075﹪, V: 0.065﹪, B: 0.085﹪, the balance is Ti and unavoidable impurities;

[0053] 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 1815°C, and the pouring temperature is 1755°C; The body is heated, the temperature is raised to 900°C, the heating rate is 300°C / hour, and the temperature is kept for 5 hours, then the temperature is lowered to 600°C,...

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Abstract

The invention provides an implantable blood pump body of a medical mechanism. The implantable blood pump body comprises a casting titanium alloy pump body, a zirconium oxide ceramic material layer arranged on the outer surface of the pump body, and a titanium carbide ceramic material layer arranged on the inner surface of the pump body; a special pickling solution and a passivation solution are adopted. According to the implantable blood pump body of the medical mechanism, medical agents are used, so that the surface treatment cycle can be greatly saved, and the surface treatment effect is outstanding.

Description

technical field [0001] The invention relates to an implantable blood pump body of a medical device, which belongs to the implanted pump 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 bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12C22C14/00C23G1/10C23C22/34
CPCA61M2205/02A61M2205/0211A61M2205/0238A61M2205/04A61M2207/00A61M2210/125A61M60/00A61M60/148C22C1/02C22C14/00C22F1/183C23C22/34C23C22/36C23G1/106
Inventor 焦雷
Owner 焦雷
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