Abstract: A photocurable hydrophilic polymer, coating composition and hydrophilic lubricating coating based on the same are provided. The photocurable polymer is formed by copolymerization of a polymerizable photosensitive monomer and a hydrophilic monomer. The photosensitive monomer comprises: 1) units containing a photosensitive structure; 2) units containing a tertiary amine co-initiator structure; and 3) units containing and unsaturated bond. The units containing the photosensitive structure are at least connected with the units containing the tertiary amine co-initiator structure through —OC(?O)—, and the units containing the unsaturated bond structure are connected with the units containing the photosensitive structure through the units containing the tertiary amine co-initiator structure. The photocurable hydrophilic polymer has a high photocurable efficiency, a simple preparation process, a high production efficiency, less environmental pollution, and hardly any cross-linking.

Abstract: The present disclosure relates to a ureteral stent and a preparation method thereof. The ureteral stent has at least one pre-coating formed on its surface and at least one hydrophilic lubricating coating formed on the pre-coating. Preferably, the pre-coating and the hydrophilic lubricating coating are formed by photocuring, thermal curing, chemical reaction, physical adsorption, crystallization or freezing. By means of the technical solutions of the present disclosure, a stable and firm coating is formed on the surface of the ureteral stent with a more complicated shape, the friction force (the friction force of the 30th cycle is small, and the friction force of the 30th cycle/initial friction force is kept within 2 times) of the ureteral stent is greatly reduced, and the lubricating performance is greatly improved.

Abstract: The disclosure relates to a central venous catheter, preparation method thereof and a medical device having the same. The central venous catheter comprises a tube body and a coating formed on the surface of tube body, coating being formed of a coating composition comprising at least one photosensitive functional compound and at least one photocurable polymer. The central venous catheter of the disclosure can prevent thrombosis, dissolve primary thrombus, and possess super-lubricated surface and firm coating bonding.

Abstract: The present disclosure relates to a ureteral stent and a preparation method thereof. The ureteral stent has at least one pre-coating formed on its surface and at least one hydrophilic lubricating coating formed on the pre-coating. Preferably, the pre-coating and the hydrophilic lubricating coating are formed by photocuring, thermal curing, chemical reaction, physical adsorption, crystallization or freezing. By means of the technical solutions of the present disclosure, a stable and firm coating is formed on the surface of the ureteral stent with a more complicated shape, the friction force (the friction force of the 30th cycle is small, and the friction force of the 30th cycle/initial friction force is kept within 2 times) of the ureteral stent is greatly reduced, and the lubricating performance is greatly improved.

Abstract: The disclosure relates to a central venous catheter, preparation method thereof and a medical device having the same. The central venous catheter comprises a tube body and a coating formed on the surface of tube body, coating being formed of a coating composition comprising at least one photosensitive functional compound and at least one photocurable polymer. The central venous catheter of the disclosure can prevent thrombosis, dissolve primary thrombus, and possess super-lubricated surface and firm coating bonding.