Anti-backflow and antibacterial urethral catheter and manufacturing method thereof

Abstract

The invention provides an anti-backflow and antibacterial urethral catheter and a manufacturing method thereof. An outer layer of the urethral catheter is coated with a nano Ag-CHA-SiO2 composite antibacterial coating, on one hand, silver ions and phosphate radicals of phospholipid molecules in a bacterial biofilm are mutually attracted, the protein structure of the bacterial biofilm is changed, meanwhile, the silver ions are combined with oxygenic metabolism enzymes in bacteria, so that bacteria are killed; on the other hand, biguanide type compound chlorhexidine can have a sterilization function by changing the permeability of bacterial serolemma, the antibacterial spectrum is wide, an antibacterial function is played on staphylococcus, streptococcus mutans, candida albicans, escherichiacoli, anaerobic bacteria and the like, and formation of the bacterial biofilm and the function of antibiotics on bacteria can be avoided to the greatest extent; moreover, an anti-backflow mechanism is arranged in the urethral catheter, so that intracavity infection is reduced, multi-channel exogenous infection is cut off, the risk that a patient is infected with CAUTIs can be notably reduced, andthe treatment effect is improved.

Description

technical field [0001] The invention relates to a medical product, in particular to an anti-reflux antibacterial urinary catheter and a manufacturing method thereof. Background technique [0002] A urinary catheter is a commonly used medical implant used in about 25% of hospitalized patients. Because of its wide range of use and high frequency, catheter-associated urinary tract infection (catheter-associated urinary tract infections, CAUTIS) has become an unavoidable problem in clinical treatment. According to relevant statistics, more than 1 million patients suffer from catheter-associated urinary tract infections in the United States every year, accounting for 40% of hospital-acquired infections, second only to respiratory infections, and is the second most common hospital-acquired infection, accounting for 40% of hospital-acquired infections. 80% of UTIs. Patients suffering from catheter-associated urinary tract infection in my country account for 37.3% to 56.0% of hosp...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned problems, the present invention provides an anti-reflux antibacterial catheter and its manufacturing method to overcome the problem of using siliconized latex catheter in the prior art The tube is easy to induce the growth of bacterial biofilm, so as to avoid the formation of bacterial biofilm to the greatest extent, avoid hindering the action of antibiotics on bacteria, and thus avoid the pain of patients caused by urinary catheter-related urinary tract infection, and reduce the pain of patients At the same time, it also reduces the economic burden of patients and saves health resources

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