Oxygenation device and oxygenation method for intravenous cavity

Abstract

The invention discloses a venous lumen oxygenation device and an oxygenation method. The venous lumen oxygenation device comprises a venous oxygenation tube inserting in a vein vascular and a control device connected with one end, extending out of the vein vascular, of the venous oxygenation tube, the control device is used for accurately controlling oxygen flow rate fed into the venous oxygenation tube, the longitudinal section of the venous oxygenation tube is divided into a venous oxygen catheter, an oxygenation channel and an output tube through a side wall with a nanoscale hole and a semipermeable membrane, oxygen is transferred to the venous vascular through the venous oxygen catheter and bypasses pulmonary alveoli with diffusion impairment to directly enter blood to be oxygenated with hemoglobin, and the lung can be best replaced under the condition of lung failure or an oxygenation function cannot temporarily displayed. Compared with a membrane oxygenator, oxygen carrying substitutes or liquid oxygen filling methods, the venous lumen oxygenation device has the advantages of simpleness in structure, convenience in use and no need to drain the blood in vitro, various possible infection is avoided, oxygen carrying content is high in the blood, and good stability is achieved.

Description

technical field [0001] The invention relates to the field of artificial oxygenation, in particular to an oxygenation device and an oxygenation method in a vein cavity. Background technique [0002] As we all know, the oxygen reserves in the human body are very small, and oxygen must be continuously supplied from the outside to maintain life. It is used to supply oxygen through the respiratory tract, and has become an important means of treating various hypoxia. However, for some special patients, conventional methods of oxygen administration will appear powerless. For example, in the face of patients with acute lung injury caused by severe respiratory burns, traumatic fluid pneumothorax, hyperosmolar pulmonary edema caused by seawater, SARS, etc., the main problem is not the ventilation barrier. Conventional respiratory oxygen supply is often unable to effectively save the patient's life; at the same time, in some special cases, the limitation of conventional oxygen supply...

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Problems solved by technology

[0003] In fact, research on oxygen-carrying substitutes at home and abroad has not stopped in recent years, such as stroma-free blood protein, genetically engineered artificial blood, circulating protein solution wrapped in liposomes, perfluorocarbon solution, etc., but due to the complex process of these products , the price is expensive, and there is still a long way to go before the technology is mature, and it is still difficult to be used in clinical practice

The liquid oxygenation methods that have been used in my country include optical quantum blood therapy (UIB), blood magnetic therapy, oxygenation method in carbonic acid amide hydrogen peroxide, optical quantum liquid therapy, etc., but there are also blood pumping and oxygenation reinfusion operations. Some defects such as cumbersome, low blood oxygen carrying capacity, and poor stability

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