In today's rapidly changing medical technology, Urinary Catheter, as an indispensable medical device in urinary system treatment, is undergoing unprecedented innovation and change. The main function of the catheter is to drain urine and help patients who cannot urinate independently for various reasons, such as those after surgery, long-term bed rest, or those suffering from diseases such as urine retention. However, there are many inconveniences and potential risks in the use of traditional catheters. How to innovate this technology to meet modern medical needs has become the focus of medical attention.

Traditional catheters are mostly made of synthetic materials such as plastics. Although they solve the problem of urine drainage to a certain extent, long-term retention can easily lead to complications such as urinary tract infection, discomfort, and even urethral stenosis in patients. In order to solve these problems, researchers are constantly exploring new catheter materials and designs, in order to improve the drainage effect while reducing the pain and complications of patients.

In recent years, the application of biocompatible materials in the manufacture of catheters has become increasingly widespread. These materials, such as medical-grade silicone, polyurethane, and natural polymers such as chitosan, have good biocompatibility and tolerance, and can significantly reduce patient discomfort and complications. The new chitosan-based hydrogel catheter not only has excellent antibacterial and lubricating properties, but also achieves biodegradability. It is expected to replace traditional plastic catheters in the future and become a new option for urinary system treatment.

In addition to material innovation, the design of catheters is also being optimized. In order to adapt to the urethral morphology and drainage needs of different patients, modern catheters pay more attention to personalization and humanization in design. For example, adjustable catheter angles, detachable catheter heads and other designs make catheterization operations easier and more comfortable, while also improving drainage effects. Some new catheters are also equipped with drug sustained-release systems that can continuously release anti-fibrosis, antibacterial and other drugs while draining urine, effectively treating urethral stenosis and preventing complications such as infection.

In terms of technological innovation, the patterning method induced by long-chain crosslinkers provides new ideas for information encryption and decryption of catheters. This method can realize the writing of complex information on the elastic film, which makes it possible to trace the catheter, prevent counterfeiting and protect patient information. The application of this technology not only improves the safety of the catheter, but also lays a solid foundation for its wide application in the medical field.

With the continuous advancement of medical technology, the application scenarios of catheters are also expanding. In addition to traditional urine drainage, modern catheters are also widely used in urine sampling, drug administration, stent implantation and surgical assistance. For example, in the treatment of urethral stenosis, the application of drug-release catheters significantly improves the treatment effect, reduces the number of operations and the pain of patients. In urinary system surgery, catheters, as surgical auxiliary tools, can help doctors accurately locate and protect the ureter and reduce surgical risks.

The innovation of catheter technology is not achieved overnight. While pursuing efficiency and safety, we also need to pay attention to the patient's experience and psychological feelings. Therefore, future catheter research and development should pay more attention to humanized design to improve patient comfort and satisfaction. At the same time, strengthening the training and guidance of medical staff to ensure the correct use and care of catheters is also the key to reducing complications and improving treatment effects.