Plasma filtering device and method for treating acute cerebral infarction

Abstract

The invention provides a plasma filtering device and a plasma filtering method for treating acute cerebral infarction. The device comprises an outer shell and a filter element, wherein the outer shellcomprises an upper shell and a lower shell which is connected to the upper shell; an accommodating space is formed between the upper shell and the lower shell; the filter element is arranged in the accommodating space; the filter element comprises first filtering membranes, a second filtering membrane and a third filtering membrane; along the flowing direction of plasma, the filter element is constituted in accordance with an arrangement mode of the first filtering membrane, the second filtering membrane, the first filtering membrane, the first filtering membrane and the third filtering membrane, wherein the first filtering membrane is a DELP membrane having a liposome and fibrinogen original affinity adsorption function; the second filtering membrane is an EKSP deep filtering membrane which is capable of adsorbing inflammatory factors and free radicals; and the third filtering membrane is a 0.2mm membrane for filtering out various granular materials with granule size greater than 0.2mm. The plasma filtering device has the advantage that plasma of a patient with the acute cerebral infarction can be filtered.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a new plasma filtration device and method for treating acute cerebral infarction. Background technique [0002] At present, cerebrovascular disease has become the first cause of disability and death among the urban and rural population in my country, and the incidence is increasing year by year. Epidemiological studies have shown that there are 1.5 to 2 million new stroke cases in China every year, the age-adjusted annual stroke incidence rate is (116-219) per 100,000 population, and the annual stroke mortality rate is (58-219) 142) / 100,000 population. [0003] In addition, there are more than 7 million patients with cerebrovascular diseases in my country, about 70% of whom are ischemic strokes, and a considerable proportion are accompanied by multiple risk factors, which are high-risk individuals for recurrent strokes. With the aging of the population, rapid economic development...

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Problems solved by technology

However, through clinical observation and statistics, it is found that during the acute attack period of cerebral infarction, the proportion of patients with abnormally high blood lipid indicators is relatively low, but more inflammatory factors and free radicals will be produced during this attack period, while the existing filter device does not It cannot be proved that it has the function of filtering and removing inflammatory factors and free radicals; in addition, the vital signs of patients with acute cerebral infarction are unstable. Filter media with better performance and greater dirt holding capacity

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