Siphunculus of human body and channel of human body

Abstract

The invention discloses an artificial siphunculus of a human body and a transplanted channel of the human body. The siphunculus of the human body comprises a siphunculus shell, at least a flow disturbing bar and at least a support frame, wherein the flow disturbing bar comprises a flow disturbing surface which can be used for extending the fluid passing path; the siphunculus shell encloses in a pipeline shape; and one end of the support frame is fixed on the inner wall of the pipeline while the other end of the support frame is connected with the flow disturbing bar and supports the flow disturbing bar in the pipeline. According to the artificial siphunculus of the human body and the transplanted channel of the human body, the flow disturbing surface which can be used for extending the fluid passing path is arranged in the siphunculus of the human body or the channel of the human body, and a pressure difference transfer area is formed inside the siphunculus of the human body or the channel of the human body, so that the direction of outward pressure to the pipeline is changed to inward pressure direction, thereby the frictional force of viscous blood and the pipeline wall is reduced correspondingly, the factor of for the siphunculus wall thickening and then narrowing is reduced, and the safety for long term use is enhanced.

Description

technical field [0001] The invention relates to a medical device, in particular to a human body passage tube and a human body passage, which are used to prevent or slow down the stenosis or restenosis of the human body passage pipe, the human body passage. Background technique [0002] Human body conduits, such as artificial stents, are widely used clinically. However, after the patient uses the artificial stent, it may take half a year or as long as several years, and due to the continuous thickening of the vessel wall, restenosis occurs to varying degrees, the blood flow is reduced or blocked, and the patient has to undergo another stent operation. The difficulty of re-operation is greatly increased and may even be life-threatening. Similarly, the transplanted human channel will also have different degrees of restenosis. [0003] As we all know, the power generated by the heart makes the viscous blood flow quickly in the blood vessels. Under the impetus of the heart, the...

AI Technical Summary

Problems solved by technology

For patients with three highs (high blood pressure, high blood fat, high blood sugar) or diabetes, due to the increase in blood viscosity, the friction between it and the pipeline and the outward pressure on the inner wall of the pipeline will increase over time. As a result, blood with viscosity and a certain degree of thickness is easy to adhere to the tube wall. Over time, the tube wall will be uneven and thickened, and the elasticity of the blood vessel will be reduced, and the vascular channel will be narrowed or restenosis. Therefore, patients after stent surgery , as short as half a year, as long as several years, there will be different degrees of restenosis of the channel, and a higher-risk operation will be redone, which may even cause fatal accidents.

Although the emergence of drug stents prolongs the period of use and slightly improves the restenosis, unfortunately, there are not many studies on the mechanism of the commonly used drug stents of paclitaxel or rapamycin to cause or reduce restenosis. Taking a lot of drugs to dilate blood vessels to prevent restenosis, metal stents can not expand, and more importantly, the problem of restenosis caused by the internal and external pressure and friction of the stent has not been solved, so the effect is not ideal, but it is better than Bare Metal Bracket

Therefore, drug stent restenosis or implanted human channel restenosis has always been the most difficult problem in the medical field in the world, and it is also a problem that has not had any effective solution so far.

Images