2results about How to "Improve traversal ability" patented technology

The utility model relates to the technical field of medical engineering, and discloses a cutting balloon and medical equipment. The cutting balloon comprises a balloon body, a cutter assembly and a hydrophilic coating. The multiple cutter assemblies are arranged on the outer wall of the balloon body and distributed in the circumferential direction of the balloon body at intervals. A hydrophilic coating is arranged on the outer wall of the balloon body. When the cutting balloon moves in a blood vessel, in a wet state, the hydrophilic coating is activated, the hydrophilic coating has high lubricating performance when making contact with blood, the penetrating performance of a cutter assembly of the cutting balloon at the complex tortuous position of the blood vessel can be improved, the trafficability of the cutting balloon is improved, and the passing success rate is increased in the process that the cutting balloon leads to a diseased region or retracts; and the operation safety and convenience are improved.

This application discloses a method and system for a secure dynamic host configuration protocol based on HTTPS. The method deploys a bidirectional proxy module between the DHCP client and server to construct a secure DHCP over HTTPS transmission channel. The client proxy module captures UDP broadcast messages from the DHCP client, encapsulates them as HTTPS POST requests, and sends them to the server proxy module via a TLS encrypted channel. The server proxy module decapsulates the messages, converts them back to UDP messages, forwards them to the DHCP server, and encapsulates the server response as an HTTPS response before returning it. This application inherits the bidirectional authentication, communication encryption, and integrity protection mechanisms of the TLS protocol, effectively defending against attacks such as spoofing servers, message eavesdropping, and tampering; it utilizes the characteristics of the HTTPS standard Web protocol to improve the ability to traverse complex network environments and firewall compatibility; and it achieves seamless compatibility with existing DHCP systems through a proxy model, significantly enhancing network access security and manageability.