Antibacterial urinary catheter and preparation method thereof

Abstract

The invention discloses an antibacterial urinary catheter. The antibacterial urinary catheter comprises a drainage pipe, a transparent outer pipe is arranged on the periphery of the drainage pipe, andan air inflation cavity is formed between the inner wall of the transparent outer pipe and the outer wall of the drainage pipe; a balloon is arranged on the transparent outer pipe, the inflation cavity is communicated with the balloon and an inflation nozzle, and a plurality of side light optical fibers are arranged on the inner circumference of the inflation cavity and connected with an opticalfiber light source device; a phthalocyanine photosensitive antibacterial agent layer is arranged on the periphery of the outer wall of the transparent outer pipe, and a curing agent layer is arrangedon the periphery of the phthalocyanine photosensitive antibacterial agent layer. According to the antibacterial urinary catheter, a urinary catheter body serves as an inner cavity, and an outer cavityand the balloon are connected to fix the urinary catheter; the phthalocyanine photosensitive antibacterial agent layer is arranged on the periphery of the outer wall of the transparent outer pipe, and the layer can generate free-state or singlet oxygen under the irradiation of the side light optical fibers connected with the optical fiber light source device, so that a good antibacterial effect is achieved, the urinary tract infection probability of the urinary catheter is greatly reduced, and the safety of the urethral catheter is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an antibacterial urinary catheter and a preparation method thereof. Background technique [0002] Urinary catheter is an important medical device, mainly used in patients with general anesthesia and dysuria, and plays an irreplaceable role in urine drainage and lowering of bladder pressure. However, according to the research data of the US CDC, the catheter 10-30% of indwelling urinary catheters will cause urinary tract infection, and 1-4% of patients can cause blood infection, and even death in severe cases. Therefore, more and more attention has been paid to the prevention of urinary catheter infection. [0003] The current antibacterial catheters are mainly divided into two categories: one is directly mixed with antibacterial agents, such as silver-based antibacterial agents or other spectrum antibiotics in the catheter material, and the other is coated with antibacter...

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Problems solved by technology

[0002] Urinary catheter is an important medical device, mainly used in patients with general anesthesia and dysuria, and plays an irreplaceable role in urine drainage and lowering of bladder pressure. However, according to the research data of the US CDC, the catheter 10-30% of indwelling urinary catheters will cause urinary tract infection, and 1-4% of patients can cause blood infection, which can even lead to death in severe cases. Therefore, more and more attention has been paid to the prevention of urinary catheter infection

[0003] The current antibacterial catheters are mainly divided into two categories: one is directly mixed with antibacterial agents, such as silver-based antibacterial agents or other spectrum antibiotics in the catheter material, and the other is coated with antibacterial agents on the surface, such as in catheter materials. The surface of the urinary catheter is coated with compound antibiotics or spectrum antibiotics, but the antibacterial materials mixed in may also affect other performances of the urinary catheter, and the addition of antibiotics will affect the patient’s medication and cause trouble for the doctor’s normal diagnosis; especially the first In one method, the amount of antimicrobial agent incorporated is large, the production cost is high, and the antibacterial agent incorporated can only play an antibacterial effect if it penetrates into the surface part

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