Medical intracardiac pump device

A pump device and pump body technology, applied in the field of medical devices, can solve problems such as difficult to meet performance requirements such as anti-hemolysis and anti-thrombosis

Inactive Publication Date: 2015-08-26
傅风荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pump body and impeller materials have been difficult to mee

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] A medical intracardiac pump device, which includes a pump body and an impeller installed inside the pump body. The pump body includes a cast titanium alloy pump body, a zirconia ceramic material layer on the outer surface of the pump body, and a titanium oxide system on the inner surface of the pump body. Ceramic material layer, impeller includes cast titanium alloy impeller and titanium carbide ceramic material layer on the outer surface of cast titanium alloy impeller,

[0046] 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;

[0047] The method for preparing the cast titanium alloy pump body includes the following steps: preparing the alloy according to the above ratio, melting and pouring the alloy material: melting temperature: 1810℃, pouring temperature i...

Example Embodiment

[0059] Example 2

[0060] A medical intracardiac pump device includes a pump body and an impeller installed inside the pump body. The pump body includes a cast titanium alloy pump body, a zirconia ceramic material layer on the outer surface of the pump body, and a titanium oxide system on the inner surface of the pump body. Ceramic material layer. The impeller includes a cast titanium alloy impeller and a titanium carbide ceramic material layer on the outer surface of the cast titanium alloy impeller.

[0061] 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;

[0062] The preparation method of the cast titanium alloy pump body: includes the following steps: preparing the alloy according to the above proportion, melting and pouring the alloy material: melting temperature: 1820℃, pouring t...

Example Embodiment

[0074] Example 3

[0075] A medical intracardiac pump device includes a pump body and an impeller installed inside the pump body. The pump body includes a cast titanium alloy pump body, a zirconia ceramic material layer on the outer surface of the pump body, and a titanium oxide system on the inner surface of the pump body. Ceramic material layer. The impeller includes a cast titanium alloy impeller and a titanium carbide ceramic material layer on the outer surface of the cast titanium alloy impeller.

[0076] 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;

[0077] The preparation method of the cast titanium alloy pump body includes the following steps: the alloy is prepared according to the above ratio, the alloy material is smelted and poured: the melting temperature: ...

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Abstract

The invention discloses a medical intracardiac pump device which comprises a pump body and an impeller mounted in the pump body, wherein the pump body comprises a cast titanium alloy pump body, a zirconia ceramic material layer on the outer surface of the pump body, and a titanium oxide ceramic material layer on the inner surface of the pump body; the impeller comprises a cast titanium alloy impeller body and a titanium carbide ceramic material layer on the outer surface of the cast titanium alloy impeller body. According to the situation that the pump body is in contact with different types of human body cells at different speeds, the inner surface and outer surface of the pump body are coated with the titanium oxide ceramic material layer and zirconia ceramic material layer respectively to improve the compatibility between the material and blood.

Description

technical field [0001] The invention relates to a medical intracardiac pump device, which belongs to implanted pumps and belongs to the technical field of medical instruments. Background technique [0002] Clinically, patients with heart failure usually need to be treated with artificial mechanical assistance devices. At present, the main cardiac assisting therapy device is a blood pump. The existing blood pumps at home and abroad are mainly implantable auxiliary blood pumps. The confirmed damage of blood pumps to blood components is mainly hemolysis and thrombosis. The former refers to the rupture of red blood cells, causing the hemoglobin in the cells to dissociate into the plasma. Middle; the latter refers to platelet aggregation after activation and precipitation on the blood contact surface. Both hemolysis and thrombus will cause the physiological disorder of the recipient, which is life-threatening in severe cases. Existing pump body and impeller materials have been...

Claims

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Application Information

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IPC IPC(8): A61M1/12C22C14/00C04B35/46C04B35/56C04B35/48
CPCA61M60/148A61M60/205C04B35/46C04B35/48C04B35/5611C22C14/00
Inventor 傅风荣
Owner 傅风荣
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